Merge branch 'master' of https://github.com/TrinityCore/TrinityCore into 4.3.4

Conflicts:
	src/server/game/Achievements/AchievementMgr.cpp
	src/server/game/Battlefield/Battlefield.h
	src/server/game/Battlegrounds/ArenaScore.h
	src/server/game/Battlegrounds/ArenaTeam.cpp
	src/server/game/Battlegrounds/ArenaTeam.h
	src/server/game/Battlegrounds/ArenaTeamMgr.cpp
	src/server/game/Battlegrounds/BattlegroundMgr.cpp
	src/server/game/Battlegrounds/BattlegroundMgr.h
	src/server/game/Battlegrounds/BattlegroundQueue.h
	src/server/game/Battlegrounds/BattlegroundScore.h
	src/server/game/Battlegrounds/Zones/BattlegroundAB.h
	src/server/game/Battlegrounds/Zones/BattlegroundAV.h
	src/server/game/Battlegrounds/Zones/BattlegroundEY.h
	src/server/game/Battlegrounds/Zones/BattlegroundIC.h
	src/server/game/Battlegrounds/Zones/BattlegroundSA.h
	src/server/game/Battlegrounds/Zones/BattlegroundWS.h
	src/server/game/DungeonFinding/LFG.h
	src/server/game/DungeonFinding/LFGMgr.cpp
	src/server/game/DungeonFinding/LFGMgr.h
	src/server/game/DungeonFinding/LFGQueue.cpp
	src/server/game/DungeonFinding/LFGQueue.h
	src/server/game/Entities/Corpse/Corpse.cpp
	src/server/game/Entities/Creature/Creature.cpp
	src/server/game/Entities/Creature/GossipDef.cpp
	src/server/game/Entities/Creature/GossipDef.h
	src/server/game/Entities/Creature/TemporarySummon.cpp
	src/server/game/Entities/DynamicObject/DynamicObject.cpp
	src/server/game/Entities/Object/Object.cpp
	src/server/game/Entities/Object/Object.h
	src/server/game/Entities/Object/ObjectDefines.h
	src/server/game/Entities/Object/Updates/UpdateData.cpp
	src/server/game/Entities/Player/Player.cpp
	src/server/game/Entities/Player/Player.h
	src/server/game/Entities/Unit/Unit.cpp
	src/server/game/Entities/Unit/Unit.h
	src/server/game/Globals/ObjectAccessor.cpp
	src/server/game/Globals/ObjectAccessor.h
	src/server/game/Globals/ObjectMgr.cpp
	src/server/game/Groups/Group.cpp
	src/server/game/Groups/Group.h
	src/server/game/Guilds/Guild.cpp
	src/server/game/Guilds/Guild.h
	src/server/game/Handlers/AuctionHouseHandler.cpp
	src/server/game/Handlers/BattleGroundHandler.cpp
	src/server/game/Handlers/CalendarHandler.cpp
	src/server/game/Handlers/CharacterHandler.cpp
	src/server/game/Handlers/ChatHandler.cpp
	src/server/game/Handlers/GroupHandler.cpp
	src/server/game/Handlers/GuildHandler.cpp
	src/server/game/Handlers/ItemHandler.cpp
	src/server/game/Handlers/LFGHandler.cpp
	src/server/game/Handlers/MailHandler.cpp
	src/server/game/Handlers/MiscHandler.cpp
	src/server/game/Handlers/MovementHandler.cpp
	src/server/game/Handlers/NPCHandler.cpp
	src/server/game/Handlers/PetHandler.cpp
	src/server/game/Handlers/QueryHandler.cpp
	src/server/game/Handlers/QuestHandler.cpp
	src/server/game/Handlers/TradeHandler.cpp
	src/server/game/Handlers/VehicleHandler.cpp
	src/server/game/Movement/Spline/MoveSplineInit.cpp
	src/server/game/Server/WorldSession.cpp
	src/server/game/Server/WorldSession.h
	src/server/game/Spells/Spell.cpp
	src/server/scripts/Commands/cs_debug.cpp
	src/server/scripts/Commands/cs_gm.cpp
	src/server/scripts/Commands/cs_misc.cpp
	src/server/scripts/Commands/cs_modify.cpp
	src/server/scripts/Commands/cs_reset.cpp
	src/server/scripts/EasternKingdoms/ZulAman/boss_akilzon.cpp
	src/server/scripts/EasternKingdoms/ZulAman/boss_halazzi.cpp
	src/server/scripts/EasternKingdoms/ZulAman/boss_hexlord.cpp
	src/server/scripts/EasternKingdoms/ZulAman/boss_janalai.cpp
	src/server/scripts/EasternKingdoms/ZulAman/boss_zuljin.cpp
	src/server/scripts/EasternKingdoms/ZulAman/instance_zulaman.cpp
	src/server/scripts/EasternKingdoms/ZulAman/zulaman.cpp
	src/server/scripts/EasternKingdoms/ZulGurub/boss_arlokk.cpp
	src/server/scripts/EasternKingdoms/ZulGurub/boss_jindo.cpp
	src/server/scripts/EasternKingdoms/ZulGurub/boss_mandokir.cpp
	src/server/scripts/EasternKingdoms/ZulGurub/boss_thekal.cpp
	src/server/scripts/EasternKingdoms/ZulGurub/instance_zulgurub.cpp
	src/server/scripts/EasternKingdoms/zone_silverpine_forest.cpp
	src/server/scripts/EasternKingdoms/zone_stormwind_city.cpp
	src/server/scripts/EasternKingdoms/zone_swamp_of_sorrows.cpp
	src/server/scripts/EasternKingdoms/zone_tirisfal_glades.cpp
	src/server/scripts/Kalimdor/zone_azshara.cpp
	src/server/scripts/Kalimdor/zone_durotar.cpp
	src/server/scripts/Kalimdor/zone_moonglade.cpp
	src/server/scripts/Kalimdor/zone_orgrimmar.cpp
	src/server/scripts/Kalimdor/zone_ungoro_crater.cpp
	src/server/scripts/Northrend/FrozenHalls/HallsOfReflection/halls_of_reflection.cpp
	src/server/scripts/Northrend/IcecrownCitadel/boss_the_lich_king.cpp
	src/server/scripts/Northrend/Naxxramas/boss_kelthuzad.cpp
	src/server/scripts/OutdoorPvP/OutdoorPvPEP.cpp
	src/server/scripts/Spells/spell_dk.cpp
	src/server/scripts/Spells/spell_generic.cpp
	src/server/shared/Packets/ByteBuffer.h

583 files changed, 8286 insertions, 9322 deletions

diff --git a/src/server/collision/Maps/TileAssembler.cpp b/src/server/collision/Maps/TileAssembler.cpp
index f2bc47638e6..cc454a5822f 100644
--- a/src/server/collision/Maps/TileAssembler.cpp
+++ b/src/server/collision/Maps/TileAssembler.cpp
@@ -236,7 +236,7 @@ namespace VMAP
             MapData::iterator map_iter = mapData.find(mapID);
             if (map_iter == mapData.end())
             {
-                printf("spawning Map %d\n", mapID);
+                printf("spawning Map %u\n", mapID);
                 mapData[mapID] = current = new MapSpawns();
             }
             else current = (*map_iter).second;
diff --git a/src/server/game/AI/CoreAI/PetAI.cpp b/src/server/game/AI/CoreAI/PetAI.cpp
index 603c34e2403..327ad6ba8fa 100644
--- a/src/server/game/AI/CoreAI/PetAI.cpp
+++ b/src/server/game/AI/CoreAI/PetAI.cpp
@@ -164,7 +164,7 @@ void PetAI::UpdateAI(uint32 diff)
                         continue;
                 }
 
-                Spell* spell = new Spell(me, spellInfo, TRIGGERED_NONE, 0);
+                Spell* spell = new Spell(me, spellInfo, TRIGGERED_NONE);
                 bool spellUsed = false;
 
                 // Some spells can target enemy or friendly (DK Ghoul's Leap)
@@ -192,7 +192,7 @@ void PetAI::UpdateAI(uint32 diff)
                 // No enemy, check friendly
                 if (!spellUsed)
                 {
-                    for (std::set<uint64>::const_iterator tar = m_AllySet.begin(); tar != m_AllySet.end(); ++tar)
+                    for (GuidSet::const_iterator tar = m_AllySet.begin(); tar != m_AllySet.end(); ++tar)
                     {
                         Unit* ally = ObjectAccessor::GetUnit(*me, *tar);
 
@@ -215,7 +215,7 @@ void PetAI::UpdateAI(uint32 diff)
             }
             else if (me->GetVictim() && CanAttack(me->GetVictim()) && spellInfo->CanBeUsedInCombat())
             {
-                Spell* spell = new Spell(me, spellInfo, TRIGGERED_NONE, 0);
+                Spell* spell = new Spell(me, spellInfo, TRIGGERED_NONE);
                 if (spell->CanAutoCast(me->GetVictim()))
                     targetSpellStore.push_back(std::make_pair(me->GetVictim(), spell));
                 else
diff --git a/src/server/game/AI/CoreAI/PetAI.h b/src/server/game/AI/CoreAI/PetAI.h
index c24bf3a0c1b..9517efd8927 100644
--- a/src/server/game/AI/CoreAI/PetAI.h
+++ b/src/server/game/AI/CoreAI/PetAI.h
@@ -57,7 +57,7 @@ class PetAI : public CreatureAI
         void UpdateAllies();
 
         TimeTracker i_tracker;
-        std::set<uint64> m_AllySet;
+        GuidSet m_AllySet;
         uint32 m_updateAlliesTimer;
 
         Unit* SelectNextTarget(bool allowAutoSelect) const;
diff --git a/src/server/game/AI/CoreAI/TotemAI.cpp b/src/server/game/AI/CoreAI/TotemAI.cpp
index 27ecc2716f3..6f456c0fd24 100644
--- a/src/server/game/AI/CoreAI/TotemAI.cpp
+++ b/src/server/game/AI/CoreAI/TotemAI.cpp
@@ -35,7 +35,7 @@ int TotemAI::Permissible(Creature const* creature)
     return PERMIT_BASE_NO;
 }
 
-TotemAI::TotemAI(Creature* c) : CreatureAI(c), i_victimGuid(0)
+TotemAI::TotemAI(Creature* c) : CreatureAI(c), i_victimGuid()
 {
     ASSERT(c->IsTotem());
 }
@@ -90,7 +90,7 @@ void TotemAI::UpdateAI(uint32 /*diff*/)
         me->CastSpell(victim, me->ToTotem()->GetSpell(), false);
     }
     else
-        i_victimGuid = 0;
+        i_victimGuid.Clear();
 }
 
 void TotemAI::AttackStart(Unit* /*victim*/)
diff --git a/src/server/game/AI/CoreAI/TotemAI.h b/src/server/game/AI/CoreAI/TotemAI.h
index 93106b91492..c63da0af31c 100644
--- a/src/server/game/AI/CoreAI/TotemAI.h
+++ b/src/server/game/AI/CoreAI/TotemAI.h
@@ -39,7 +39,7 @@ class TotemAI : public CreatureAI
         static int Permissible(Creature const* creature);
 
     private:
-        uint64 i_victimGuid;
+        ObjectGuid i_victimGuid;
 };
 #endif
 
diff --git a/src/server/game/AI/CoreAI/UnitAI.h b/src/server/game/AI/CoreAI/UnitAI.h
index 979fe4fe558..5d67c9546aa 100644
--- a/src/server/game/AI/CoreAI/UnitAI.h
+++ b/src/server/game/AI/CoreAI/UnitAI.h
@@ -137,8 +137,8 @@ class UnitAI
         virtual void DoAction(int32 /*param*/) { }
         virtual uint32 GetData(uint32 /*id = 0*/) const { return 0; }
         virtual void SetData(uint32 /*id*/, uint32 /*value*/) { }
-        virtual void SetGUID(uint64 /*guid*/, int32 /*id*/ = 0) { }
-        virtual uint64 GetGUID(int32 /*id*/ = 0) const { return 0; }
+        virtual void SetGUID(ObjectGuid /*guid*/, int32 /*id*/ = 0) { }
+        virtual ObjectGuid GetGUID(int32 /*id*/ = 0) const { return ObjectGuid::Empty; }
 
         Unit* SelectTarget(SelectAggroTarget targetType, uint32 position = 0, float dist = 0.0f, bool playerOnly = false, int32 aura = 0);
         // Select the targets satisfying the predicate.
diff --git a/src/server/game/AI/CreatureAI.cpp b/src/server/game/AI/CreatureAI.cpp
index 7a79bb722a0..933cb38aef5 100644
--- a/src/server/game/AI/CreatureAI.cpp
+++ b/src/server/game/AI/CreatureAI.cpp
@@ -38,16 +38,11 @@ void CreatureAI::OnCharmed(bool /*apply*/)
 AISpellInfoType* UnitAI::AISpellInfo;
 AISpellInfoType* GetAISpellInfo(uint32 i) { return &CreatureAI::AISpellInfo[i]; }
 
-void CreatureAI::Talk(uint8 id, WorldObject const* whisperTarget /*= NULL*/)
+void CreatureAI::Talk(uint8 id, WorldObject const* whisperTarget /*= nullptr*/)
 {
     sCreatureTextMgr->SendChat(me, id, whisperTarget);
 }
 
-void CreatureAI::TalkToMap(uint8 id, WorldObject const* whisperTarget /*= NULL*/)
-{
-    sCreatureTextMgr->SendChat(me, id, whisperTarget, CHAT_MSG_ADDON, LANG_ADDON, TEXT_RANGE_MAP);
-}
-
 void CreatureAI::DoZoneInCombat(Creature* creature /*= NULL*/, float maxRangeToNearestTarget /* = 50.0f*/)
 {
     if (!creature)
diff --git a/src/server/game/AI/CreatureAI.h b/src/server/game/AI/CreatureAI.h
index b79dd6abbc8..83ecb11a8ef 100644
--- a/src/server/game/AI/CreatureAI.h
+++ b/src/server/game/AI/CreatureAI.h
@@ -78,8 +78,8 @@ class CreatureAI : public UnitAI
         Creature* DoSummonFlyer(uint32 entry, WorldObject* obj, float flightZ, float radius = 5.0f, uint32 despawnTime = 30000, TempSummonType summonType = TEMPSUMMON_CORPSE_TIMED_DESPAWN);
 
     public:
-        void Talk(uint8 id, WorldObject const* whisperTarget = NULL);
-        void TalkToMap(uint8 id, WorldObject const* whisperTarget = NULL);
+        void Talk(uint8 id, WorldObject const* whisperTarget = nullptr);
+
         explicit CreatureAI(Creature* creature) : UnitAI(creature), me(creature), m_MoveInLineOfSight_locked(false) { }
 
         virtual ~CreatureAI() { }
@@ -165,14 +165,12 @@ class CreatureAI : public UnitAI
 
         /// == Fields =======================================
 
-        // Pointer to controlled by AI creature
-        //Creature* const me;
-
         virtual void PassengerBoarded(Unit* /*passenger*/, int8 /*seatId*/, bool /*apply*/) { }
 
         virtual void OnSpellClick(Unit* /*clicker*/, bool& /*result*/) { }
 
         virtual bool CanSeeAlways(WorldObject const* /*obj*/) { return false; }
+
     protected:
         virtual void MoveInLineOfSight(Unit* /*who*/);
 
diff --git a/src/server/game/AI/ScriptedAI/ScriptedCreature.cpp b/src/server/game/AI/ScriptedAI/ScriptedCreature.cpp
index 614f5826824..4f4f56d3fe3 100644
--- a/src/server/game/AI/ScriptedAI/ScriptedCreature.cpp
+++ b/src/server/game/AI/ScriptedAI/ScriptedCreature.cpp
@@ -311,8 +311,8 @@ void ScriptedAI::DoTeleportPlayer(Unit* unit, float x, float y, float z, float o
     if (Player* player = unit->ToPlayer())
         player->TeleportTo(unit->GetMapId(), x, y, z, o, TELE_TO_NOT_LEAVE_COMBAT);
     else
-        TC_LOG_ERROR("scripts", "Creature " UI64FMTD " (Entry: %u) Tried to teleport non-player unit (Type: %u GUID: " UI64FMTD ") to x: %f y:%f z: %f o: %f. Aborted.",
-            me->GetGUID(), me->GetEntry(), unit->GetTypeId(), unit->GetGUID(), x, y, z, o);
+        TC_LOG_ERROR("scripts", "Creature %s Tried to teleport non-player unit (%s) to x: %f y:%f z: %f o: %f. Aborted.",
+            me->GetGUID().ToString().c_str(), unit->GetGUID().ToString().c_str(), x, y, z, o);
 }
 
 void ScriptedAI::DoTeleportAll(float x, float y, float z, float o)
diff --git a/src/server/game/AI/ScriptedAI/ScriptedCreature.h b/src/server/game/AI/ScriptedAI/ScriptedCreature.h
index d1e54ab84fe..e9a797c7db8 100644
--- a/src/server/game/AI/ScriptedAI/ScriptedCreature.h
+++ b/src/server/game/AI/ScriptedAI/ScriptedCreature.h
@@ -40,7 +40,7 @@ class InstanceScript;
 class SummonList
 {
 public:
-    typedef std::list<uint64> StorageType;
+    typedef GuidList StorageType;
     typedef StorageType::iterator iterator;
     typedef StorageType::const_iterator const_iterator;
     typedef StorageType::size_type size_type;
@@ -104,7 +104,7 @@ public:
     {
         // We need to use a copy of SummonList here, otherwise original SummonList would be modified
         StorageType listCopy = storage_;
-        Trinity::Containers::RandomResizeList<uint64, Predicate>(listCopy, predicate, max);
+        Trinity::Containers::RandomResizeList<ObjectGuid, Predicate>(listCopy, predicate, max);
         for (StorageType::iterator i = listCopy.begin(); i != listCopy.end(); )
         {
             Creature* summon = ObjectAccessor::GetCreature(*me, *i++);
@@ -126,7 +126,7 @@ class EntryCheckPredicate
 {
     public:
         EntryCheckPredicate(uint32 entry) : _entry(entry) { }
-        bool operator()(uint64 guid) { return GUID_ENPART(guid) == _entry; }
+        bool operator()(ObjectGuid guid) { return guid.GetEntry() == _entry; }
 
     private:
         uint32 _entry;
@@ -135,7 +135,7 @@ class EntryCheckPredicate
 class DummyEntryCheckPredicate
 {
     public:
-        bool operator()(uint64) { return true; }
+        bool operator()(ObjectGuid) { return true; }
 };
 
 struct ScriptedAI : public CreatureAI
diff --git a/src/server/game/AI/ScriptedAI/ScriptedEscortAI.cpp b/src/server/game/AI/ScriptedAI/ScriptedEscortAI.cpp
index d06f90c1aeb..0b69391f935 100644
--- a/src/server/game/AI/ScriptedAI/ScriptedEscortAI.cpp
+++ b/src/server/game/AI/ScriptedAI/ScriptedEscortAI.cpp
@@ -23,10 +23,10 @@ SDComment:
 SDCategory: Npc
 EndScriptData */
 
+#include "Player.h"
 #include "ScriptedCreature.h"
 #include "ScriptedEscortAI.h"
 #include "Group.h"
-#include "Player.h"
 
 enum Points
 {
@@ -35,7 +35,6 @@ enum Points
 };
 
 npc_escortAI::npc_escortAI(Creature* creature) : ScriptedAI(creature),
-    m_uiPlayerGUID(0),
     m_uiWPWaitTimer(2500),
     m_uiPlayerCheckTimer(1000),
     m_uiEscortState(STATE_ESCORT_NONE),
@@ -430,7 +429,7 @@ void npc_escortAI::SetRun(bool on)
 }
 
 /// @todo get rid of this many variables passed in function.
-void npc_escortAI::Start(bool isActiveAttacker /* = true*/, bool run /* = false */, uint64 playerGUID /* = 0 */, Quest const* quest /* = NULL */, bool instantRespawn /* = false */, bool canLoopPath /* = false */, bool resetWaypoints /* = true */)
+void npc_escortAI::Start(bool isActiveAttacker /* = true*/, bool run /* = false */, ObjectGuid playerGUID /* = 0 */, Quest const* quest /* = NULL */, bool instantRespawn /* = false */, bool canLoopPath /* = false */, bool resetWaypoints /* = true */)
 {
     if (me->GetVictim())
     {
@@ -486,7 +485,7 @@ void npc_escortAI::Start(bool isActiveAttacker /* = true*/, bool run /* = false
         me->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_IMMUNE_TO_NPC);
     }
 
-    TC_LOG_DEBUG("scripts", "EscortAI started with " UI64FMTD " waypoints. ActiveAttacker = %d, Run = %d, PlayerGUID = " UI64FMTD "", uint64(WaypointList.size()), m_bIsActiveAttacker, m_bIsRunning, m_uiPlayerGUID);
+    TC_LOG_DEBUG("scripts", "EscortAI started with " UI64FMTD " waypoints. ActiveAttacker = %d, Run = %d, %s", uint64(WaypointList.size()), m_bIsActiveAttacker, m_bIsRunning, m_uiPlayerGUID.ToString().c_str());
 
     CurrentWP = WaypointList.begin();
 
diff --git a/src/server/game/AI/ScriptedAI/ScriptedEscortAI.h b/src/server/game/AI/ScriptedAI/ScriptedEscortAI.h
index b8c9ee57aeb..22280ee3575 100644
--- a/src/server/game/AI/ScriptedAI/ScriptedEscortAI.h
+++ b/src/server/game/AI/ScriptedAI/ScriptedEscortAI.h
@@ -88,7 +88,7 @@ struct npc_escortAI : public ScriptedAI
         virtual void WaypointReached(uint32 pointId) = 0;
         virtual void WaypointStart(uint32 /*pointId*/) { }
 
-        void Start(bool isActiveAttacker = true, bool run = false, uint64 playerGUID = 0, Quest const* quest = NULL, bool instantRespawn = false, bool canLoopPath = false, bool resetWaypoints = true);
+        void Start(bool isActiveAttacker = true, bool run = false, ObjectGuid playerGUID = ObjectGuid::Empty, Quest const* quest = NULL, bool instantRespawn = false, bool canLoopPath = false, bool resetWaypoints = true);
 
         void SetRun(bool on = true);
         void SetEscortPaused(bool on);
@@ -103,7 +103,7 @@ struct npc_escortAI : public ScriptedAI
         void SetDespawnAtFar(bool despawn) { DespawnAtFar = despawn; }
         bool GetAttack() { return m_bIsActiveAttacker; }//used in EnterEvadeMode override
         void SetCanAttack(bool attack) { m_bIsActiveAttacker = attack; }
-        uint64 GetEventStarterGUID() { return m_uiPlayerGUID; }
+        ObjectGuid GetEventStarterGUID() { return m_uiPlayerGUID; }
 
     protected:
         Player* GetPlayerForEscort() { return ObjectAccessor::GetPlayer(*me, m_uiPlayerGUID); }
@@ -116,7 +116,7 @@ struct npc_escortAI : public ScriptedAI
         void AddEscortState(uint32 escortState) { m_uiEscortState |= escortState; }
         void RemoveEscortState(uint32 escortState) { m_uiEscortState &= ~escortState; }
 
-        uint64 m_uiPlayerGUID;
+        ObjectGuid m_uiPlayerGUID;
         uint32 m_uiWPWaitTimer;
         uint32 m_uiPlayerCheckTimer;
         uint32 m_uiEscortState;
diff --git a/src/server/game/AI/ScriptedAI/ScriptedFollowerAI.cpp b/src/server/game/AI/ScriptedAI/ScriptedFollowerAI.cpp
index a106c98c786..00aa8eacc93 100644
--- a/src/server/game/AI/ScriptedAI/ScriptedFollowerAI.cpp
+++ b/src/server/game/AI/ScriptedAI/ScriptedFollowerAI.cpp
@@ -23,10 +23,10 @@ SDComment: This AI is under development
 SDCategory: Npc
 EndScriptData */
 
+#include "Player.h"
 #include "ScriptedCreature.h"
 #include "ScriptedFollowerAI.h"
 #include "Group.h"
-#include "Player.h"
 
 const float MAX_PLAYER_DISTANCE = 100.0f;
 
@@ -36,7 +36,6 @@ enum Points
 };
 
 FollowerAI::FollowerAI(Creature* creature) : ScriptedAI(creature),
-    m_uiLeaderGUID(0),
     m_uiUpdateFollowTimer(2500),
     m_uiFollowState(STATE_FOLLOW_NONE),
     m_pQuestForFollow(NULL)
@@ -320,7 +319,7 @@ void FollowerAI::StartFollow(Player* player, uint32 factionForFollower, const Qu
 
     me->GetMotionMaster()->MoveFollow(player, PET_FOLLOW_DIST, PET_FOLLOW_ANGLE);
 
-    TC_LOG_DEBUG("scripts", "FollowerAI start follow %s (GUID " UI64FMTD ")", player->GetName().c_str(), m_uiLeaderGUID);
+    TC_LOG_DEBUG("scripts", "FollowerAI start follow %s (%s)", player->GetName().c_str(), m_uiLeaderGUID.ToString().c_str());
 }
 
 Player* FollowerAI::GetLeaderForFollower()
diff --git a/src/server/game/AI/ScriptedAI/ScriptedFollowerAI.h b/src/server/game/AI/ScriptedAI/ScriptedFollowerAI.h
index adb17ef76b1..88b3ccd6a64 100644
--- a/src/server/game/AI/ScriptedAI/ScriptedFollowerAI.h
+++ b/src/server/game/AI/ScriptedAI/ScriptedFollowerAI.h
@@ -71,7 +71,7 @@ class FollowerAI : public ScriptedAI
 
         bool AssistPlayerInCombat(Unit* who);
 
-        uint64 m_uiLeaderGUID;
+        ObjectGuid m_uiLeaderGUID;
         uint32 m_uiUpdateFollowTimer;
         uint32 m_uiFollowState;
 
diff --git a/src/server/game/AI/SmartScripts/SmartAI.cpp b/src/server/game/AI/SmartScripts/SmartAI.cpp
index 41f783f4289..bdad018c622 100644
--- a/src/server/game/AI/SmartScripts/SmartAI.cpp
+++ b/src/server/game/AI/SmartScripts/SmartAI.cpp
@@ -61,7 +61,7 @@ SmartAI::SmartAI(Creature* c) : CreatureAI(c)
     mDespawnState = 0;
 
     mEscortInvokerCheckTimer = 1000;
-    mFollowGuid = 0;
+    mFollowGuid.Clear();
     mFollowDist = 0;
     mFollowAngle = 0;
     mFollowCredit = 0;
@@ -540,7 +540,7 @@ void SmartAI::JustRespawned()
     mJustReset = true;
     JustReachedHome();
     GetScript()->ProcessEventsFor(SMART_EVENT_RESPAWN);
-    mFollowGuid = 0;//do not reset follower on Reset(), we need it after combat evade
+    mFollowGuid.Clear();//do not reset follower on Reset(), we need it after combat evade
     mFollowDist = 0;
     mFollowAngle = 0;
     mFollowCredit = 0;
@@ -674,8 +674,8 @@ void SmartAI::OnCharmed(bool apply)
 {
     GetScript()->ProcessEventsFor(SMART_EVENT_CHARMED, NULL, 0, 0, apply);
 
-    if (!apply && !me->IsInEvadeMode() && me->GetUInt64Value(UNIT_FIELD_CHARMEDBY))
-        if (Unit* charmer = ObjectAccessor::GetUnit(*me, me->GetUInt64Value(UNIT_FIELD_CHARMEDBY)))
+    if (!apply && !me->IsInEvadeMode() && me->GetCharmerGUID())
+        if (Unit* charmer = ObjectAccessor::GetUnit(*me, me->GetCharmerGUID()))
             AttackStart(charmer);
 }
 
@@ -694,11 +694,11 @@ void SmartAI::SetData(uint32 id, uint32 value)
     GetScript()->ProcessEventsFor(SMART_EVENT_DATA_SET, NULL, id, value);
 }
 
-void SmartAI::SetGUID(uint64 /*guid*/, int32 /*id*/) { }
+void SmartAI::SetGUID(ObjectGuid /*guid*/, int32 /*id*/) { }
 
-uint64 SmartAI::GetGUID(int32 /*id*/) const
+ObjectGuid SmartAI::GetGUID(int32 /*id*/) const
 {
-    return 0;
+    return ObjectGuid::Empty;
 }
 
 void SmartAI::SetRun(bool run)
@@ -800,7 +800,7 @@ void SmartAI::StopFollow()
             player->GroupEventHappens(mFollowCredit, me);
     }
 
-    mFollowGuid = 0;
+    mFollowGuid.Clear();
     mFollowDist = 0;
     mFollowAngle = 0;
     mFollowCredit = 0;
diff --git a/src/server/game/AI/SmartScripts/SmartAI.h b/src/server/game/AI/SmartScripts/SmartAI.h
index b0d5d4f8343..a5abf2a33e3 100644
--- a/src/server/game/AI/SmartScripts/SmartAI.h
+++ b/src/server/game/AI/SmartScripts/SmartAI.h
@@ -154,10 +154,10 @@ class SmartAI : public CreatureAI
         void SetData(uint32 id, uint32 value) override;
 
         // Used in scripts to share variables
-        void SetGUID(uint64 guid, int32 id = 0) override;
+        void SetGUID(ObjectGuid guid, int32 id = 0) override;
 
         // Used in scripts to share variables
-        uint64 GetGUID(int32 id = 0) const override;
+        ObjectGuid GetGUID(int32 id = 0) const override;
 
         //core related
         static int Permissible(const Creature*);
@@ -199,7 +199,7 @@ class SmartAI : public CreatureAI
         uint32 mFollowArrivedTimer;
         uint32 mFollowCredit;
         uint32 mFollowArrivedEntry;
-        uint64 mFollowGuid;
+        ObjectGuid mFollowGuid;
         float mFollowDist;
         float mFollowAngle;
 
diff --git a/src/server/game/AI/SmartScripts/SmartScript.cpp b/src/server/game/AI/SmartScripts/SmartScript.cpp
index 9bfbce6b4f9..fb3bbd17a69 100644
--- a/src/server/game/AI/SmartScripts/SmartScript.cpp
+++ b/src/server/game/AI/SmartScripts/SmartScript.cpp
@@ -51,9 +51,6 @@ SmartScript::SmartScript()
     mUseTextTimer = false;
     mTalkerEntry = 0;
     mTemplate = SMARTAI_TEMPLATE_BASIC;
-    meOrigGUID = 0;
-    goOrigGUID = 0;
-    mLastInvoker = 0;
     mScriptType = SMART_SCRIPT_TYPE_CREATURE;
     isProcessingTimedActionList = false;
 }
@@ -79,7 +76,7 @@ void SmartScript::OnReset()
         }
     }
     ProcessEventsFor(SMART_EVENT_RESET);
-    mLastInvoker = 0;
+    mLastInvoker.Clear();
 }
 
 void SmartScript::ProcessEventsFor(SMART_EVENT e, Unit* unit, uint32 var0, uint32 var1, bool bvar, const SpellInfo* spell, GameObject* gob)
@@ -509,10 +506,10 @@ void SmartScript::ProcessAction(SmartScriptHolder& e, Unit* unit, uint32 var0, u
                         go->CastSpell((*itr)->ToUnit(), e.action.cast.spell, (e.action.cast.flags & SMARTCAST_TRIGGERED) != 0);
 
                     TC_LOG_DEBUG("scripts.ai", "SmartScript::ProcessAction:: SMART_ACTION_CAST:: %s: %u casts spell %u on target %u with castflags %u",
-                        GetLogNameForGuid(me ? me->GetGUID() : go->GetGUID()), me ? me->GetGUIDLow() : go->GetGUIDLow(), e.action.cast.spell, (*itr)->GetGUIDLow(), e.action.cast.flags);
+                        (me ? me->GetGUID() : go->GetGUID()).GetTypeName(), me ? me->GetGUIDLow() : go->GetGUIDLow(), e.action.cast.spell, (*itr)->GetGUIDLow(), e.action.cast.flags);
                 }
                 else
-                    TC_LOG_DEBUG("scripts.ai", "Spell %u not cast because it has flag SMARTCAST_AURA_NOT_PRESENT and the target (Guid: " UI64FMTD " Entry: %u Type: %u) already has the aura", e.action.cast.spell, (*itr)->GetGUID(), (*itr)->GetEntry(), uint32((*itr)->GetTypeId()));
+                    TC_LOG_DEBUG("scripts.ai", "Spell %u not cast because it has flag SMARTCAST_AURA_NOT_PRESENT and the target (%s) already has the aura", e.action.cast.spell, (*itr)->GetGUID().ToString().c_str());
             }
 
             delete targets;
@@ -543,7 +540,7 @@ void SmartScript::ProcessAction(SmartScriptHolder& e, Unit* unit, uint32 var0, u
                         tempLastInvoker->GetGUIDLow(), e.action.cast.spell, (*itr)->GetGUIDLow(), e.action.cast.flags);
                 }
                 else
-                    TC_LOG_DEBUG("scripts.ai", "Spell %u not cast because it has flag SMARTCAST_AURA_NOT_PRESENT and the target (Guid: " UI64FMTD " Entry: %u Type: %u) already has the aura", e.action.cast.spell, (*itr)->GetGUID(), (*itr)->GetEntry(), uint32((*itr)->GetTypeId()));
+                    TC_LOG_DEBUG("scripts.ai", "Spell %u not cast because it has flag SMARTCAST_AURA_NOT_PRESENT and the target (%s) already has the aura", e.action.cast.spell, (*itr)->GetGUID().ToString().c_str());
             }
 
             delete targets;
@@ -939,9 +936,9 @@ void SmartScript::ProcessAction(SmartScriptHolder& e, Unit* unit, uint32 var0, u
             if (!targets)
                 break;
 
-            instance->SetData64(e.action.setInstanceData64.field, targets->front()->GetGUID());
-            TC_LOG_DEBUG("scripts.ai", "SmartScript::ProcessAction: SMART_ACTION_SET_INST_DATA64: Field: %u, data: " UI64FMTD,
-                e.action.setInstanceData64.field, targets->front()->GetGUID());
+            instance->SetGuidData(e.action.setInstanceData64.field, targets->front()->GetGUID());
+            TC_LOG_DEBUG("scripts.ai", "SmartScript::ProcessAction: SMART_ACTION_SET_INST_DATA64: Field: %u, data: %s",
+                e.action.setInstanceData64.field, targets->front()->GetGUID().ToString().c_str());
 
             delete targets;
             break;
@@ -1277,13 +1274,6 @@ void SmartScript::ProcessAction(SmartScriptHolder& e, Unit* unit, uint32 var0, u
             delete targets;
             break;
         }
-        case SMART_ACTION_STORE_VARIABLE_DECIMAL:
-        {
-            if (mStoredDecimals.find(e.action.storeVar.id) != mStoredDecimals.end())
-                mStoredDecimals.erase(e.action.storeVar.id);
-            mStoredDecimals[e.action.storeVar.id] = e.action.storeVar.number;
-            break;
-        }
         case SMART_ACTION_STORE_TARGET_LIST:
         {
             ObjectList* targets = GetTargets(e, unit);
@@ -1568,20 +1558,20 @@ void SmartScript::ProcessAction(SmartScriptHolder& e, Unit* unit, uint32 var0, u
             {
                 if (IsCreature(*itr))
                 {
-                    if (!meOrigGUID)
-                        meOrigGUID = me ? me->GetGUID() : 0;
-                    if (!goOrigGUID)
-                        goOrigGUID = go ? go->GetGUID() : 0;
+                    if (!meOrigGUID && me)
+                        meOrigGUID = me->GetGUID();
+                    if (!goOrigGUID && go)
+                        goOrigGUID = go->GetGUID();
                     go = NULL;
                     me = (*itr)->ToCreature();
                     break;
                 }
                 else if (IsGameObject(*itr))
                 {
-                    if (!meOrigGUID)
-                        meOrigGUID = me ? me->GetGUID() : 0;
-                    if (!goOrigGUID)
-                        goOrigGUID = go ? go->GetGUID() : 0;
+                    if (!meOrigGUID && me)
+                        meOrigGUID = me->GetGUID();
+                    if (!goOrigGUID && go)
+                        goOrigGUID = go->GetGUID();
                     go = (*itr)->ToGameObject();
                     me = NULL;
                     break;
@@ -1723,7 +1713,7 @@ void SmartScript::ProcessAction(SmartScriptHolder& e, Unit* unit, uint32 var0, u
                         unit->CastSpell((*it)->ToUnit(), e.action.cast.spell, (e.action.cast.flags & SMARTCAST_TRIGGERED) != 0);
                     }
                     else
-                        TC_LOG_DEBUG("scripts.ai", "Spell %u not cast because it has flag SMARTCAST_AURA_NOT_PRESENT and the target (Guid: " UI64FMTD " Entry: %u Type: %u) already has the aura", e.action.cast.spell, (*it)->GetGUID(), (*it)->GetEntry(), uint32((*it)->GetTypeId()));
+                        TC_LOG_DEBUG("scripts.ai", "Spell %u not cast because it has flag SMARTCAST_AURA_NOT_PRESENT and the target (%s) already has the aura", e.action.cast.spell, (*it)->GetGUID().ToString().c_str());
                 }
             }
 
@@ -2637,7 +2627,7 @@ ObjectList* SmartScript::GetTargets(SmartScriptHolder const& e, Unit* invoker /*
         {
             if (me)
             {
-                uint64 charmerOrOwnerGuid = me->GetCharmerOrOwnerGUID();
+                ObjectGuid charmerOrOwnerGuid = me->GetCharmerOrOwnerGUID();
 
                 if (!charmerOrOwnerGuid)
                     charmerOrOwnerGuid = me->GetCreatorGUID();
diff --git a/src/server/game/AI/SmartScripts/SmartScript.h b/src/server/game/AI/SmartScripts/SmartScript.h
index 0931756a026..02bc1a2b487 100644
--- a/src/server/game/AI/SmartScripts/SmartScript.h
+++ b/src/server/game/AI/SmartScripts/SmartScript.h
@@ -197,14 +197,14 @@ class SmartScript
                     go = o;
                 }
             }
-            goOrigGUID = 0;
-            meOrigGUID = 0;
+            goOrigGUID.Clear();
+            meOrigGUID.Clear();
         }
 
         //TIMED_ACTIONLIST (script type 9 aka script9)
         void SetScript9(SmartScriptHolder& e, uint32 entry);
         Unit* GetLastInvoker();
-        uint64 mLastInvoker;
+        ObjectGuid mLastInvoker;
 
     private:
         void IncPhase(int32 p = 1)
@@ -224,14 +224,13 @@ class SmartScript
         SmartAIEventList mTimedActionList;
         bool isProcessingTimedActionList;
         Creature* me;
-        uint64 meOrigGUID;
+        ObjectGuid meOrigGUID;
         GameObject* go;
-        uint64 goOrigGUID;
+        ObjectGuid goOrigGUID;
         AreaTriggerEntry const* trigger;
         SmartScriptType mScriptType;
         uint32 mEventPhase;
 
-        std::unordered_map<int32, int32> mStoredDecimals;
         uint32 mPathId;
         SmartAIEventList mStoredEvents;
         std::list<uint32>mRemIDs;
diff --git a/src/server/game/AI/SmartScripts/SmartScriptMgr.cpp b/src/server/game/AI/SmartScripts/SmartScriptMgr.cpp
index 7831594016a..db61730326c 100644
--- a/src/server/game/AI/SmartScripts/SmartScriptMgr.cpp
+++ b/src/server/game/AI/SmartScripts/SmartScriptMgr.cpp
@@ -1055,7 +1055,6 @@ bool SmartAIMgr::IsEventValid(SmartScriptHolder& e)
         case SMART_ACTION_DIE:
         case SMART_ACTION_SET_IN_COMBAT_WITH_ZONE:
         case SMART_ACTION_SET_ACTIVE:
-        case SMART_ACTION_STORE_VARIABLE_DECIMAL:
         case SMART_ACTION_WP_RESUME:
         case SMART_ACTION_KILL_UNIT:
         case SMART_ACTION_SET_INVINCIBILITY_HP_LEVEL:
diff --git a/src/server/game/AI/SmartScripts/SmartScriptMgr.h b/src/server/game/AI/SmartScripts/SmartScriptMgr.h
index e3c4e644751..4404b224db1 100644
--- a/src/server/game/AI/SmartScripts/SmartScriptMgr.h
+++ b/src/server/game/AI/SmartScripts/SmartScriptMgr.h
@@ -480,7 +480,7 @@ enum SMART_ACTION
     SMART_ACTION_SET_FLY                            = 60,     // 0/1
     SMART_ACTION_SET_SWIM                           = 61,     // 0/1
     SMART_ACTION_TELEPORT                           = 62,     // mapID,
-    SMART_ACTION_STORE_VARIABLE_DECIMAL             = 63,     // varID, number
+    // 63 unused
     SMART_ACTION_STORE_TARGET_LIST                  = 64,     // varID,
     SMART_ACTION_WP_RESUME                          = 65,     // none
     SMART_ACTION_SET_ORIENTATION                    = 66,     //
@@ -1360,7 +1360,7 @@ struct SmartScriptHolder
 typedef std::unordered_map<uint32, WayPoint*> WPPath;
 
 typedef std::list<WorldObject*> ObjectList;
-typedef std::list<uint64> GuidList;
+
 class ObjectGuidList
 {
     ObjectList* m_objectList;
@@ -1393,7 +1393,7 @@ public:
                 if (WorldObject* obj = ObjectAccessor::GetWorldObject(*m_baseObject, *itr))
                     m_objectList->push_back(obj);
                 else
-                    TC_LOG_DEBUG("scripts.ai", "SmartScript::mTargetStorage stores a guid to an invalid object: " UI64FMTD, *itr);
+                    TC_LOG_DEBUG("scripts.ai", "SmartScript::mTargetStorage stores a guid to an invalid object: %s", itr->ToString().c_str());
             }
         }
 
diff --git a/src/server/game/Accounts/AccountMgr.cpp b/src/server/game/Accounts/AccountMgr.cpp
index c7437909f05..682df18b2d1 100644
--- a/src/server/game/Accounts/AccountMgr.cpp
+++ b/src/server/game/Accounts/AccountMgr.cpp
@@ -81,8 +81,7 @@ AccountOpResult AccountMgr::DeleteAccount(uint32 accountId)
     {
         do
         {
-            uint32 guidLow = (*result)[0].GetUInt32();
-            uint64 guid = MAKE_NEW_GUID(guidLow, 0, HIGHGUID_PLAYER);
+            ObjectGuid guid(HIGHGUID_PLAYER, (*result)[0].GetUInt32());
 
             // Kick if player is online
             if (Player* p = ObjectAccessor::FindPlayer(guid))
diff --git a/src/server/game/Achievements/AchievementMgr.cpp b/src/server/game/Achievements/AchievementMgr.cpp
index a391093c583..0bb6fd8d3a1 100644
--- a/src/server/game/Achievements/AchievementMgr.cpp
+++ b/src/server/game/Achievements/AchievementMgr.cpp
@@ -504,37 +504,37 @@ void AchievementMgr<Guild>::ResetAchievementCriteria(AchievementCriteriaTypes /*
 }
 
 template<class T>
-void AchievementMgr<T>::DeleteFromDB(uint32 /*lowguid*/)
+void AchievementMgr<T>::DeleteFromDB(ObjectGuid /*guid*/)
 {
 }
 
 template<>
-void AchievementMgr<Player>::DeleteFromDB(uint32 lowguid)
+void AchievementMgr<Player>::DeleteFromDB(ObjectGuid guid)
 {
     SQLTransaction trans = CharacterDatabase.BeginTransaction();
 
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_CHAR_ACHIEVEMENT);
-    stmt->setUInt32(0, lowguid);
+    stmt->setUInt32(0, guid.GetCounter());
     trans->Append(stmt);
 
     stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_CHAR_ACHIEVEMENT_PROGRESS);
-    stmt->setUInt32(0, lowguid);
+    stmt->setUInt32(0, guid.GetCounter());
     trans->Append(stmt);
 
     CharacterDatabase.CommitTransaction(trans);
 }
 
 template<>
-void AchievementMgr<Guild>::DeleteFromDB(uint32 lowguid)
+void AchievementMgr<Guild>::DeleteFromDB(ObjectGuid guid)
 {
     SQLTransaction trans = CharacterDatabase.BeginTransaction();
 
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_ALL_GUILD_ACHIEVEMENTS);
-    stmt->setUInt32(0, lowguid);
+    stmt->setUInt32(0, guid.GetCounter());
     trans->Append(stmt);
 
     stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_ALL_GUILD_ACHIEVEMENT_CRITERIA);
-    stmt->setUInt32(0, lowguid);
+    stmt->setUInt32(0, guid.GetCounter());
     trans->Append(stmt);
 
     CharacterDatabase.CommitTransaction(trans);
@@ -557,11 +557,11 @@ void AchievementMgr<Player>::SaveToDB(SQLTransaction& trans)
 
             PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_CHAR_ACHIEVEMENT_BY_ACHIEVEMENT);
             stmt->setUInt16(0, iter->first);
-            stmt->setUInt32(1, GetOwner()->GetGUID());
+            stmt->setUInt32(1, GetOwner()->GetGUID().GetCounter());
             trans->Append(stmt);
 
             stmt = CharacterDatabase.GetPreparedStatement(CHAR_INS_CHAR_ACHIEVEMENT);
-            stmt->setUInt32(0, GetOwner()->GetGUID());
+            stmt->setUInt32(0, GetOwner()->GetGUID().GetCounter());
             stmt->setUInt16(1, iter->first);
             stmt->setUInt32(2, uint32(iter->second.date));
             trans->Append(stmt);
@@ -578,14 +578,14 @@ void AchievementMgr<Player>::SaveToDB(SQLTransaction& trans)
                 continue;
 
             PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_CHAR_ACHIEVEMENT_PROGRESS_BY_CRITERIA);
-            stmt->setUInt32(0, GetOwner()->GetGUID());
+            stmt->setUInt32(0, GetOwner()->GetGUID().GetCounter());
             stmt->setUInt16(1, iter->first);
             trans->Append(stmt);
 
             if (iter->second.counter)
             {
                 stmt = CharacterDatabase.GetPreparedStatement(CHAR_INS_CHAR_ACHIEVEMENT_PROGRESS);
-                stmt->setUInt32(0, GetOwner()->GetGUID());
+                stmt->setUInt32(0, GetOwner()->GetGUID().GetCounter());
                 stmt->setUInt16(1, iter->first);
                 stmt->setUInt32(2, iter->second.counter);
                 stmt->setUInt32(3, uint32(iter->second.date));
@@ -616,8 +616,8 @@ void AchievementMgr<Guild>::SaveToDB(SQLTransaction& trans)
         stmt->setUInt32(0, GetOwner()->GetId());
         stmt->setUInt16(1, itr->first);
         stmt->setUInt32(2, itr->second.date);
-        for (std::set<uint64>::const_iterator gItr = itr->second.guids.begin(); gItr != itr->second.guids.end(); ++gItr)
-            guidstr << GUID_LOPART(*gItr) << ',';
+        for (GuidSet::const_iterator gItr = itr->second.guids.begin(); gItr != itr->second.guids.end(); ++gItr)
+            guidstr << gItr->GetCounter() << ',';
 
         stmt->setString(3, guidstr.str());
         trans->Append(stmt);
@@ -640,7 +640,7 @@ void AchievementMgr<Guild>::SaveToDB(SQLTransaction& trans)
         stmt->setUInt16(1, itr->first);
         stmt->setUInt64(2, itr->second.counter);
         stmt->setUInt32(3, itr->second.date);
-        stmt->setUInt32(4, GUID_LOPART(itr->second.CompletedGUID));
+        stmt->setUInt32(4, itr->second.CompletedGUID.GetCounter());
         trans->Append(stmt);
     }
 }
@@ -735,7 +735,7 @@ void AchievementMgr<Guild>::LoadFromDB(PreparedQueryResult achievementResult, Pr
             ca.date = time_t(fields[1].GetUInt32());
             Tokenizer guids(fields[2].GetString(), ' ');
             for (uint32 i = 0; i < guids.size(); ++i)
-                ca.guids.insert(MAKE_NEW_GUID(atol(guids[i]), 0, HIGHGUID_PLAYER));
+                ca.guids.insert(ObjectGuid(HIGHGUID_PLAYER, uint32(atol(guids[i]))));
 
             ca.changed = false;
 
@@ -753,7 +753,7 @@ void AchievementMgr<Guild>::LoadFromDB(PreparedQueryResult achievementResult, Pr
             uint32 id      = fields[0].GetUInt16();
             uint32 counter = fields[1].GetUInt32();
             time_t date    = time_t(fields[2].GetUInt32());
-            uint64 guid    = fields[3].GetUInt32();
+            uint32 guid    = fields[3].GetUInt32();
 
             AchievementCriteriaEntry const* criteria = sAchievementMgr->GetAchievementCriteria(id);
             if (!criteria)
@@ -773,7 +773,7 @@ void AchievementMgr<Guild>::LoadFromDB(PreparedQueryResult achievementResult, Pr
             CriteriaProgress& progress = m_criteriaProgress[id];
             progress.counter = counter;
             progress.date    = date;
-            progress.CompletedGUID = MAKE_NEW_GUID(guid, 0, HIGHGUID_PLAYER);
+            progress.CompletedGUID = ObjectGuid(HIGHGUID_PLAYER, guid);
             progress.changed = false;
         } while (criteriaResult->NextRow());
     }
@@ -804,7 +804,7 @@ void AchievementMgr<Player>::Reset()
     m_completedAchievements.clear();
     _achievementPoints = 0;
     m_criteriaProgress.clear();
-    DeleteFromDB(GetOwner()->GetGUIDLow());
+    DeleteFromDB(GetOwner()->GetGUID());
 
     // re-fill data
     CheckAllAchievementCriteria(GetOwner());
@@ -844,7 +844,7 @@ void AchievementMgr<Guild>::Reset()
 
     _achievementPoints = 0;
     m_completedAchievements.clear();
-    DeleteFromDB(GetOwner()->GetId());
+    DeleteFromDB(GetOwner()->GetGUID());
 }
 
 template<class T>
@@ -883,7 +883,7 @@ void AchievementMgr<T>::SendAchievementEarned(AchievementEntry const* achievemen
     }
 
     WorldPacket data(SMSG_ACHIEVEMENT_EARNED, 8+4+8);
-    data.append(GetOwner()->GetPackGUID());
+    data << GetOwner()->GetPackGUID();
     data << uint32(achievement->ID);
     data.AppendPackedTime(time(NULL));
     data << uint32(0);  // does not notify player ingame
@@ -933,7 +933,7 @@ void AchievementMgr<Player>::SendCriteriaUpdate(AchievementCriteriaEntry const*
     // the counter is packed like a packed Guid
     data.appendPackGUID(progress->counter);
 
-    data.appendPackGUID(GetOwner()->GetGUID());
+    data << GetOwner()->GetPackGUID();
     if (!entry->timeLimit)
         data << uint32(0);
     else
@@ -950,7 +950,7 @@ void AchievementMgr<Guild>::SendCriteriaUpdate(AchievementCriteriaEntry const* e
     //will send response to criteria progress request
     WorldPacket data(SMSG_GUILD_CRITERIA_DATA, 3 + 1 + 1 + 8 + 8 + 4 + 4 + 4 + 4 + 4);
 
-    ObjectGuid counter = progress->counter; // for accessing every byte individually
+    ObjectGuid counter(progress->counter); // for accessing every byte individually
     ObjectGuid guid = progress->CompletedGUID;
 
     data.WriteBits(1, 21);
@@ -1047,12 +1047,12 @@ void AchievementMgr<T>::UpdateAchievementCriteria(AchievementCriteriaTypes type,
     if (referencePlayer->IsGameMaster())
     {
         TC_LOG_DEBUG("achievement", "UpdateAchievementCriteria: [Player %s GM mode on] %s, %s (%u), " UI64FMTD ", " UI64FMTD ", " UI64FMTD
-            , referencePlayer->GetName().c_str(), GetLogNameForGuid(GetOwner()->GetGUID()), AchievementGlobalMgr::GetCriteriaTypeString(type), type, miscValue1, miscValue2, miscValue3);
+            , referencePlayer->GetName().c_str(), GetOwner()->GetGUID().ToString().c_str(), AchievementGlobalMgr::GetCriteriaTypeString(type), type, miscValue1, miscValue2, miscValue3);
         return;
     }
 
     TC_LOG_DEBUG("achievement", "UpdateAchievementCriteria: %s, %s (%u), " UI64FMTD ", " UI64FMTD ", " UI64FMTD
-        , GetLogNameForGuid(GetOwner()->GetGUID()), AchievementGlobalMgr::GetCriteriaTypeString(type), type, miscValue1, miscValue2, miscValue3);
+        , GetOwner()->GetGUID().ToString().c_str(), AchievementGlobalMgr::GetCriteriaTypeString(type), type, miscValue1, miscValue2, miscValue3);
 
     // Lua_GetGuildLevelEnabled() is checked in achievement UI to display guild tab
     if (IsGuild<T>() && !sWorld->getBoolConfig(CONFIG_GUILD_LEVELING_ENABLED))
@@ -1660,8 +1660,8 @@ void AchievementMgr<T>::SetCriteriaProgress(AchievementCriteriaEntry const* entr
     if (entry->timeLimit && timedIter == m_timedAchievements.end())
         return;
 
-    TC_LOG_DEBUG("achievement", "SetCriteriaProgress(%u, " UI64FMTD ") for (%s GUID: %u)",
-                   entry->ID, changeValue, GetLogNameForGuid(GetOwner()->GetGUID()), GUID_LOPART(GetOwner()->GetGUID()));
+    TC_LOG_DEBUG("achievement", "SetCriteriaProgress(%u, " UI64FMTD ") for (%s)",
+                   entry->ID, changeValue, GetOwner()->GetGUID().ToString().c_str());
 
     CriteriaProgress* progress = GetCriteriaProgress(entry);
     if (!progress)
@@ -1899,7 +1899,7 @@ void AchievementMgr<Guild>::CompletedAchievement(AchievementEntry const* achieve
 
     if (achievement->flags & ACHIEVEMENT_FLAG_SHOW_IN_GUILD_NEWS)
         if (Guild* guild = referencePlayer->GetGuild())
-            guild->AddGuildNews(GUILD_NEWS_GUILD_ACHIEVEMENT, 0, achievement->flags & ACHIEVEMENT_FLAG_SHOW_IN_GUILD_HEADER, achievement->ID);
+            guild->AddGuildNews(GUILD_NEWS_GUILD_ACHIEVEMENT, ObjectGuid::Empty, achievement->flags & ACHIEVEMENT_FLAG_SHOW_IN_GUILD_HEADER, achievement->ID);
 
     SendAchievementEarned(achievement);
     CompletedAchievementData& ca = m_completedAchievements[achievement->ID];
@@ -1949,7 +1949,7 @@ void AchievementMgr<T>::SendAllAchievementData(Player* /*receiver*/) const
     data.WriteBits(numCriteria, 21);
     for (CriteriaProgressMap::const_iterator itr = m_criteriaProgress.begin(); itr != m_criteriaProgress.end(); ++itr)
     {
-        counter = itr->second.counter;
+        counter.Set(itr->second.counter);
 
         data.WriteBit(guid[4]);
         data.WriteBit(counter[3]);
@@ -2052,7 +2052,7 @@ void AchievementMgr<Player>::SendAchievementInfo(Player* receiver, uint32 /*achi
     data.WriteBit(guid[2]);
     for (CriteriaProgressMap::const_iterator itr = m_criteriaProgress.begin(); itr != m_criteriaProgress.end(); ++itr)
     {
-        counter = itr->second.counter;
+        counter.Set(itr->second.counter);
 
         data.WriteBit(counter[5]);
         data.WriteBit(counter[3]);
@@ -2159,7 +2159,7 @@ void AchievementMgr<Guild>::SendAchievementInfo(Player* receiver, uint32 achieve
         if (progress == m_criteriaProgress.end())
             continue;
 
-        counter = progress->second.counter;
+        counter.Set(progress->second.counter);
         guid = progress->second.CompletedGUID;
 
         criteriaBits.WriteBit(counter[4]);
diff --git a/src/server/game/Achievements/AchievementMgr.h b/src/server/game/Achievements/AchievementMgr.h
index efa3e3ce5fa..efa275ed3be 100644
--- a/src/server/game/Achievements/AchievementMgr.h
+++ b/src/server/game/Achievements/AchievementMgr.h
@@ -26,6 +26,7 @@
 #include "DatabaseEnv.h"
 #include "DBCEnums.h"
 #include "DBCStores.h"
+#include "ObjectGuid.h"
 
 class Unit;
 class Player;
@@ -41,7 +42,7 @@ struct CriteriaProgress
 {
     uint64 counter;
     time_t date;                                            // latest update time.
-    uint64 CompletedGUID;                                   // GUID of the player that completed this criteria (guild achievements)
+    ObjectGuid CompletedGUID;                               // GUID of the player that completed this criteria (guild achievements)
     bool changed;
 };
 
@@ -233,7 +234,7 @@ typedef std::unordered_map<uint32, AchievementRewardLocale> AchievementRewardLoc
 struct CompletedAchievementData
 {
     time_t date;
-    std::set<uint64> guids;
+    GuidSet guids;
     bool changed;
 };
 
@@ -255,7 +256,7 @@ class AchievementMgr
         ~AchievementMgr();
 
         void Reset();
-        static void DeleteFromDB(uint32 lowguid);
+        static void DeleteFromDB(ObjectGuid lowguid);
         void LoadFromDB(PreparedQueryResult achievementResult, PreparedQueryResult criteriaResult);
         void SaveToDB(SQLTransaction& trans);
         void ResetAchievementCriteria(AchievementCriteriaTypes type, uint64 miscValue1 = 0, uint64 miscValue2 = 0, bool evenIfCriteriaComplete = false);
diff --git a/src/server/game/AuctionHouse/AuctionHouseMgr.cpp b/src/server/game/AuctionHouse/AuctionHouseMgr.cpp
index 40935a0712c..2479c8fa2f0 100644
--- a/src/server/game/AuctionHouse/AuctionHouseMgr.cpp
+++ b/src/server/game/AuctionHouse/AuctionHouseMgr.cpp
@@ -92,7 +92,7 @@ void AuctionHouseMgr::SendAuctionWonMail(AuctionEntry* auction, SQLTransaction&
         return;
 
     uint32 bidderAccId = 0;
-    uint64 bidderGuid = MAKE_NEW_GUID(auction->bidder, 0, HIGHGUID_PLAYER);
+    ObjectGuid bidderGuid(HIGHGUID_PLAYER, auction->bidder);
     Player* bidder = ObjectAccessor::FindPlayer(bidderGuid);
     // data for gm.log
     std::string bidderName;
@@ -115,11 +115,12 @@ void AuctionHouseMgr::SendAuctionWonMail(AuctionEntry* auction, SQLTransaction&
 
     if (logGmTrade)
     {
+        ObjectGuid ownerGuid = ObjectGuid(HIGHGUID_PLAYER, auction->owner);
         std::string ownerName;
-        if (!sObjectMgr->GetPlayerNameByGUID(auction->owner, ownerName))
+        if (!sObjectMgr->GetPlayerNameByGUID(ownerGuid, ownerName))
             ownerName = sObjectMgr->GetTrinityStringForDBCLocale(LANG_UNKNOWN);
 
-        uint32 ownerAccId = sObjectMgr->GetPlayerAccountIdByGUID(auction->owner);
+        uint32 ownerAccId = sObjectMgr->GetPlayerAccountIdByGUID(ownerGuid);
 
         sLog->outCommand(bidderAccId, "GM %s (Account: %u) won item in auction: %s (Entry: %u Count: %u) and pay money: %u. Original owner %s (Account: %u)",
             bidderName.c_str(), bidderAccId, pItem->GetTemplate()->Name1.c_str(), pItem->GetEntry(), pItem->GetCount(), auction->bid, ownerName.c_str(), ownerAccId);
@@ -150,7 +151,7 @@ void AuctionHouseMgr::SendAuctionWonMail(AuctionEntry* auction, SQLTransaction&
 
 void AuctionHouseMgr::SendAuctionSalePendingMail(AuctionEntry* auction, SQLTransaction& trans)
 {
-    uint64 owner_guid = MAKE_NEW_GUID(auction->owner, 0, HIGHGUID_PLAYER);
+    ObjectGuid owner_guid(HIGHGUID_PLAYER, auction->owner);
     Player* owner = ObjectAccessor::FindPlayer(owner_guid);
     uint32 owner_accId = sObjectMgr->GetPlayerAccountIdByGUID(owner_guid);
     // owner exist (online or offline)
@@ -162,7 +163,7 @@ void AuctionHouseMgr::SendAuctionSalePendingMail(AuctionEntry* auction, SQLTrans
 //call this method to send mail to auction owner, when auction is successful, it does not clear ram
 void AuctionHouseMgr::SendAuctionSuccessfulMail(AuctionEntry* auction, SQLTransaction& trans)
 {
-    uint64 owner_guid = MAKE_NEW_GUID(auction->owner, 0, HIGHGUID_PLAYER);
+    ObjectGuid owner_guid(HIGHGUID_PLAYER, auction->owner);
     Player* owner = ObjectAccessor::FindPlayer(owner_guid);
     uint32 owner_accId = sObjectMgr->GetPlayerAccountIdByGUID(owner_guid);
     // owner exist
@@ -193,7 +194,7 @@ void AuctionHouseMgr::SendAuctionExpiredMail(AuctionEntry* auction, SQLTransacti
     if (!pItem)
         return;
 
-    uint64 owner_guid = MAKE_NEW_GUID(auction->owner, 0, HIGHGUID_PLAYER);
+    ObjectGuid owner_guid(HIGHGUID_PLAYER, auction->owner);
     Player* owner = ObjectAccessor::FindPlayer(owner_guid);
     uint32 owner_accId = sObjectMgr->GetPlayerAccountIdByGUID(owner_guid);
     // owner exist
@@ -211,7 +212,7 @@ void AuctionHouseMgr::SendAuctionExpiredMail(AuctionEntry* auction, SQLTransacti
 //this function sends mail to old bidder
 void AuctionHouseMgr::SendAuctionOutbiddedMail(AuctionEntry* auction, uint32 newPrice, Player* newBidder, SQLTransaction& trans)
 {
-    uint64 oldBidder_guid = MAKE_NEW_GUID(auction->bidder, 0, HIGHGUID_PLAYER);
+    ObjectGuid oldBidder_guid(HIGHGUID_PLAYER, auction->bidder);
     Player* oldBidder = ObjectAccessor::FindPlayer(oldBidder_guid);
 
     uint32 oldBidder_accId = 0;
@@ -233,7 +234,7 @@ void AuctionHouseMgr::SendAuctionOutbiddedMail(AuctionEntry* auction, uint32 new
 //this function sends mail, when auction is cancelled to old bidder
 void AuctionHouseMgr::SendAuctionCancelledToBidderMail(AuctionEntry* auction, SQLTransaction& trans, Item* item)
 {
-    uint64 bidder_guid = MAKE_NEW_GUID(auction->bidder, 0, HIGHGUID_PLAYER);
+    ObjectGuid bidder_guid = ObjectGuid(HIGHGUID_PLAYER, auction->bidder);
     Player* bidder = ObjectAccessor::FindPlayer(bidder_guid);
 
     uint32 bidder_accId = 0;
@@ -291,7 +292,7 @@ void AuctionHouseMgr::LoadAuctionItems()
         }
 
         Item* item = NewItemOrBag(proto);
-        if (!item->LoadFromDB(item_guid, 0, fields, itemEntry))
+        if (!item->LoadFromDB(item_guid, ObjectGuid::Empty, fields, itemEntry))
         {
             delete item;
             continue;
@@ -851,7 +852,7 @@ std::string AuctionEntry::BuildAuctionMailBody(uint32 lowGuid, uint32 bid, uint3
 {
     std::ostringstream strm;
     strm.width(16);
-    strm << std::right << std::hex << MAKE_NEW_GUID(lowGuid, 0, HIGHGUID_PLAYER);   // HIGHGUID_PLAYER always present, even for empty guids
+    strm << std::right << std::hex << ObjectGuid(HIGHGUID_PLAYER, lowGuid).GetRawValue();   // HIGHGUID_PLAYER always present, even for empty guids
     strm << std::dec << ':' << bid << ':' << buyout;
     strm << ':' << deposit << ':' << cut;
     return strm.str();
diff --git a/src/server/game/Battlefield/Battlefield.cpp b/src/server/game/Battlefield/Battlefield.cpp
index 935dd8d72f9..24eb7c8664e 100644
--- a/src/server/game/Battlefield/Battlefield.cpp
+++ b/src/server/game/Battlefield/Battlefield.cpp
@@ -37,7 +37,6 @@ Battlefield::Battlefield()
     m_isActive = false;
     m_DefenderTeam = TEAM_NEUTRAL;
 
-    m_Guid = 0;
     m_TypeId = 0;
     m_BattleId = 0;
     m_ZoneId = 0;
@@ -57,7 +56,6 @@ Battlefield::Battlefield()
     m_LastResurrectTimer = 30 * IN_MILLISECONDS;
     m_StartGroupingTimer = 0;
     m_StartGrouping = false;
-    StalkerGuid = 0;
 }
 
 Battlefield::~Battlefield()
@@ -300,7 +298,7 @@ void Battlefield::KickAfkPlayers()
                     KickPlayerFromBattlefield(*itr);
 }
 
-void Battlefield::KickPlayerFromBattlefield(uint64 guid)
+void Battlefield::KickPlayerFromBattlefield(ObjectGuid guid)
 {
     if (Player* player = ObjectAccessor::FindPlayer(guid))
         if (player->GetZoneId() == GetZoneId())
@@ -360,10 +358,7 @@ void Battlefield::DoPlaySoundToAll(uint32 SoundID)
     data << uint32(SoundID);
     data << uint64(0);
 
-    for (int team = 0; team < BG_TEAMS_COUNT; team++)
-        for (GuidSet::const_iterator itr = m_PlayersInWar[team].begin(); itr != m_PlayersInWar[team].end(); ++itr)
-            if (Player* player = ObjectAccessor::FindPlayer(*itr))
-                player->SendDirectMessage(&data);
+    BroadcastPacketToWar(data);
 }
 
 bool Battlefield::HasPlayer(Player* player) const
@@ -446,18 +441,10 @@ void Battlefield::BroadcastPacketToWar(WorldPacket& data) const
                 player->SendDirectMessage(&data);
 }
 
-void Battlefield::SendWarningToAllInZone(uint32 entry)
+void Battlefield::SendWarning(uint8 id, WorldObject const* target /*= nullptr*/)
 {
     if (Creature* stalker = GetCreature(StalkerGuid))
-        // FIXME: replaced CHAT_TYPE_END with CHAT_MSG_BG_SYSTEM_NEUTRAL to fix compile, it's a guessed change :/
-        sCreatureTextMgr->SendChat(stalker, (uint8) entry, NULL, CHAT_MSG_BG_SYSTEM_NEUTRAL, LANG_ADDON, TEXT_RANGE_ZONE);
-}
-
-void Battlefield::SendWarningToPlayer(Player* player, uint32 entry)
-{
-    if (player)
-        if (Creature* stalker = GetCreature(StalkerGuid))
-            sCreatureTextMgr->SendChat(stalker, (uint8)entry, player);
+        sCreatureTextMgr->SendChat(stalker, id, target);
 }
 
 void Battlefield::SendUpdateWorldState(uint32 field, uint32 value)
@@ -503,17 +490,17 @@ void Battlefield::ShowNpc(Creature* creature, bool aggressive)
 Group* Battlefield::GetFreeBfRaid(TeamId TeamId)
 {
     for (GuidSet::const_iterator itr = m_Groups[TeamId].begin(); itr != m_Groups[TeamId].end(); ++itr)
-        if (Group* group = sGroupMgr->GetGroupByGUID(*itr))
+        if (Group* group = sGroupMgr->GetGroupByGUID(itr->GetCounter()))
             if (!group->IsFull())
                 return group;
 
     return NULL;
 }
 
-Group* Battlefield::GetGroupPlayer(uint64 guid, TeamId TeamId)
+Group* Battlefield::GetGroupPlayer(ObjectGuid guid, TeamId TeamId)
 {
     for (GuidSet::const_iterator itr = m_Groups[TeamId].begin(); itr != m_Groups[TeamId].end(); ++itr)
-        if (Group* group = sGroupMgr->GetGroupByGUID(*itr))
+        if (Group* group = sGroupMgr->GetGroupByGUID(itr->GetCounter()))
             if (group->IsMember(guid))
                 return group;
 
@@ -598,7 +585,7 @@ WorldSafeLocsEntry const* Battlefield::GetClosestGraveYard(Player* player)
     return NULL;
 }
 
-void Battlefield::AddPlayerToResurrectQueue(uint64 npcGuid, uint64 playerGuid)
+void Battlefield::AddPlayerToResurrectQueue(ObjectGuid npcGuid, ObjectGuid playerGuid)
 {
     for (uint8 i = 0; i < m_GraveyardList.size(); i++)
     {
@@ -613,7 +600,7 @@ void Battlefield::AddPlayerToResurrectQueue(uint64 npcGuid, uint64 playerGuid)
     }
 }
 
-void Battlefield::RemovePlayerFromResurrectQueue(uint64 playerGuid)
+void Battlefield::RemovePlayerFromResurrectQueue(ObjectGuid playerGuid)
 {
     for (uint8 i = 0; i < m_GraveyardList.size(); i++)
     {
@@ -628,7 +615,7 @@ void Battlefield::RemovePlayerFromResurrectQueue(uint64 playerGuid)
     }
 }
 
-void Battlefield::SendAreaSpiritHealerQueryOpcode(Player* player, uint64 guid)
+void Battlefield::SendAreaSpiritHealerQueryOpcode(Player* player, ObjectGuid guid)
 {
     WorldPacket data(SMSG_AREA_SPIRIT_HEALER_TIME, 12);
     uint32 time = m_LastResurrectTimer;  // resurrect every 30 seconds
@@ -645,8 +632,8 @@ BfGraveyard::BfGraveyard(Battlefield* battlefield)
     m_Bf = battlefield;
     m_GraveyardId = 0;
     m_ControlTeam = TEAM_NEUTRAL;
-    m_SpiritGuide[0] = 0;
-    m_SpiritGuide[1] = 0;
+    m_SpiritGuide[0].Clear();
+    m_SpiritGuide[1].Clear();
 }
 
 void BfGraveyard::Initialize(TeamId startControl, uint32 graveyardId)
@@ -673,7 +660,7 @@ float BfGraveyard::GetDistance(Player* player)
     return player->GetDistance2d(safeLoc->x, safeLoc->y);
 }
 
-void BfGraveyard::AddPlayer(uint64 playerGuid)
+void BfGraveyard::AddPlayer(ObjectGuid playerGuid)
 {
     if (!m_ResurrectQueue.count(playerGuid))
     {
@@ -684,7 +671,7 @@ void BfGraveyard::AddPlayer(uint64 playerGuid)
     }
 }
 
-void BfGraveyard::RemovePlayer(uint64 playerGuid)
+void BfGraveyard::RemovePlayer(ObjectGuid playerGuid)
 {
     m_ResurrectQueue.erase(m_ResurrectQueue.find(playerGuid));
 
@@ -756,7 +743,7 @@ void BfGraveyard::RelocateDeadPlayers()
     }
 }
 
-bool BfGraveyard::HasNpc(uint64 guid)
+bool BfGraveyard::HasNpc(ObjectGuid guid)
 {
     if (!m_SpiritGuide[0] || !m_SpiritGuide[1])
         return false;
@@ -837,25 +824,25 @@ GameObject* Battlefield::SpawnGameObject(uint32 entry, float x, float y, float z
     return go;
 }
 
-Creature* Battlefield::GetCreature(uint64 GUID)
+Creature* Battlefield::GetCreature(ObjectGuid guid)
 {
     if (!m_Map)
         return NULL;
-    return m_Map->GetCreature(GUID);
+    return m_Map->GetCreature(guid);
 }
 
-GameObject* Battlefield::GetGameObject(uint64 GUID)
+GameObject* Battlefield::GetGameObject(ObjectGuid guid)
 {
     if (!m_Map)
         return NULL;
-    return m_Map->GetGameObject(GUID);
+    return m_Map->GetGameObject(guid);
 }
 
 // *******************************************************
 // ******************* CapturePoint **********************
 // *******************************************************
 
-BfCapturePoint::BfCapturePoint(Battlefield* battlefield) : m_Bf(battlefield), m_capturePointGUID(0)
+BfCapturePoint::BfCapturePoint(Battlefield* battlefield) : m_Bf(battlefield), m_capturePointGUID()
 {
     m_team = TEAM_NEUTRAL;
     m_value = 0;
@@ -920,7 +907,7 @@ bool BfCapturePoint::SetCapturePointData(GameObject* capturePoint)
 
     TC_LOG_DEBUG("bg.battlefield", "Creating capture point %u", capturePoint->GetEntry());
 
-    m_capturePointGUID = MAKE_NEW_GUID(capturePoint->GetGUIDLow(), capturePoint->GetEntry(), HIGHGUID_GAMEOBJECT);
+    m_capturePointGUID = ObjectGuid(HIGHGUID_GAMEOBJECT, capturePoint->GetEntry(), capturePoint->GetGUIDLow());
 
     // check info existence
     GameObjectTemplate const* goinfo = capturePoint->GetGOInfo();
@@ -965,7 +952,7 @@ bool BfCapturePoint::DelCapturePoint()
             capturePoint->Delete();
             capturePoint = NULL;
         }
-        m_capturePointGUID = 0;
+        m_capturePointGUID.Clear();
     }
 
     return true;
@@ -1101,7 +1088,7 @@ void BfCapturePoint::SendUpdateWorldState(uint32 field, uint32 value)
                 player->SendUpdateWorldState(field, value);
 }
 
-void BfCapturePoint::SendObjectiveComplete(uint32 id, uint64 guid)
+void BfCapturePoint::SendObjectiveComplete(uint32 id, ObjectGuid guid)
 {
     uint8 team;
     switch (m_State)
diff --git a/src/server/game/Battlefield/Battlefield.h b/src/server/game/Battlefield/Battlefield.h
index e4fe45d45d5..b09350bb770 100644
--- a/src/server/game/Battlefield/Battlefield.h
+++ b/src/server/game/Battlefield/Battlefield.h
@@ -65,9 +65,8 @@ class Unit;
 class Battlefield;
 class BfGraveyard;
 
-typedef std::set<uint64> GuidSet;
 typedef std::vector<BfGraveyard*> GraveyardVect;
-typedef std::map<uint64, time_t> PlayerTimerMap;
+typedef std::map<ObjectGuid, time_t> PlayerTimerMap;
 
 class BfCapturePoint
 {
@@ -82,7 +81,7 @@ class BfCapturePoint
         void SendUpdateWorldState(uint32 field, uint32 value);
 
         // Send kill notify to players in the controlling faction
-        void SendObjectiveComplete(uint32 id, uint64 guid);
+        void SendObjectiveComplete(uint32 id, ObjectGuid guid);
 
         // Used when player is activated/inactivated in the area
         virtual bool HandlePlayerEnter(Player* player);
@@ -133,7 +132,7 @@ class BfCapturePoint
         uint32 m_capturePointEntry;
 
         // Gameobject related to that capture point
-        uint64 m_capturePointGUID;
+        ObjectGuid m_capturePointGUID;
 };
 
 class BfGraveyard
@@ -155,10 +154,10 @@ class BfGraveyard
         void SetSpirit(Creature* spirit, TeamId team);
 
         // Add a player to the graveyard
-        void AddPlayer(uint64 player_guid);
+        void AddPlayer(ObjectGuid player_guid);
 
         // Remove a player from the graveyard
-        void RemovePlayer(uint64 player_guid);
+        void RemovePlayer(ObjectGuid player_guid);
 
         // Resurrect players
         void Resurrect();
@@ -167,10 +166,10 @@ class BfGraveyard
         void RelocateDeadPlayers();
 
         // Check if this graveyard has a spirit guide
-        bool HasNpc(uint64 guid);
+        bool HasNpc(ObjectGuid guid);
 
         // Check if a player is in this graveyard's resurrect queue
-        bool HasPlayer(uint64 guid) { return m_ResurrectQueue.find(guid) != m_ResurrectQueue.end(); }
+        bool HasPlayer(ObjectGuid guid) { return m_ResurrectQueue.find(guid) != m_ResurrectQueue.end(); }
 
         // Get the graveyard's ID.
         uint32 GetGraveyardId() const { return m_GraveyardId; }
@@ -178,7 +177,7 @@ class BfGraveyard
     protected:
         TeamId m_ControlTeam;
         uint32 m_GraveyardId;
-        uint64 m_SpiritGuide[BG_TEAMS_COUNT];
+        ObjectGuid m_SpiritGuide[BG_TEAMS_COUNT];
         GuidSet m_ResurrectQueue;
         Battlefield* m_Bf;
 };
@@ -223,7 +222,7 @@ class Battlefield : public ZoneScript
 
         uint32 GetTypeId() { return m_TypeId; }
         uint32 GetZoneId() { return m_ZoneId; }
-        uint64 GetGUID()   { return m_Guid;   }
+        ObjectGuid GetGUID()   { return m_Guid; }
 
         void TeamApplyBuff(TeamId team, uint32 spellId, uint32 spellId2 = 0);
 
@@ -239,7 +238,7 @@ class Battlefield : public ZoneScript
          * \brief Kick player from battlefield and teleport him to kick-point location
          * \param guid : guid of player who must be kick
          */
-        void KickPlayerFromBattlefield(uint64 guid);
+        void KickPlayerFromBattlefield(ObjectGuid guid);
 
         /// Called when player (player) enter in zone
         void HandlePlayerEnterZone(Player* player, uint32 zone);
@@ -268,7 +267,7 @@ class Battlefield : public ZoneScript
          */
         Group* GetFreeBfRaid(TeamId TeamId);
         /// Return battlefield group where player is.
-        Group* GetGroupPlayer(uint64 guid, TeamId TeamId);
+        Group* GetGroupPlayer(ObjectGuid guid, TeamId TeamId);
         /// Force player to join a battlefield group
         bool AddOrSetPlayerToCorrectBfGroup(Player* player);
 
@@ -276,8 +275,8 @@ class Battlefield : public ZoneScript
         // Find which graveyard the player must be teleported to to be resurrected by spiritguide
         WorldSafeLocsEntry const* GetClosestGraveYard(Player* player);
 
-        virtual void AddPlayerToResurrectQueue(uint64 npc_guid, uint64 player_guid);
-        void RemovePlayerFromResurrectQueue(uint64 player_guid);
+        virtual void AddPlayerToResurrectQueue(ObjectGuid npc_guid, ObjectGuid player_guid);
+        void RemovePlayerFromResurrectQueue(ObjectGuid player_guid);
         void SetGraveyardNumber(uint32 number) { m_GraveyardList.resize(number); }
         BfGraveyard* GetGraveyardById(uint32 id) const;
 
@@ -286,8 +285,8 @@ class Battlefield : public ZoneScript
         Creature* SpawnCreature(uint32 entry, Position const& pos, TeamId /*teamId*/);
         GameObject* SpawnGameObject(uint32 entry, float x, float y, float z, float o);
 
-        Creature* GetCreature(uint64 GUID);
-        GameObject* GetGameObject(uint64 GUID);
+        Creature* GetCreature(ObjectGuid guid);
+        GameObject* GetGameObject(ObjectGuid guid);
 
         // Script-methods
 
@@ -306,8 +305,7 @@ class Battlefield : public ZoneScript
         /// Called when a player enter in battlefield zone
         virtual void OnPlayerEnterZone(Player* /*player*/) { }
 
-        void SendWarningToAllInZone(uint32 entry);
-        void SendWarningToPlayer(Player* player, uint32 entry);
+        void SendWarning(uint8 id, WorldObject const* target = nullptr);
 
         void PlayerAcceptInviteToQueue(Player* player);
         void PlayerAcceptInviteToWar(Player* player);
@@ -323,7 +321,7 @@ class Battlefield : public ZoneScript
         /// Return if we can use mount in battlefield
         bool CanFlyIn() { return !m_isActive; }
 
-        void SendAreaSpiritHealerQueryOpcode(Player* player, uint64 guid);
+        void SendAreaSpiritHealerQueryOpcode(Player* player, ObjectGuid guid);
 
         void StartBattle();
         void EndBattle(bool endByTimer);
@@ -344,9 +342,9 @@ class Battlefield : public ZoneScript
         void InitStalker(uint32 entry, Position const& pos);
 
     protected:
-        uint64 m_Guid;
+        ObjectGuid m_Guid;
 
-        uint64 StalkerGuid;
+        ObjectGuid StalkerGuid;
         uint32 m_Timer;                                         // Global timer for event
         bool m_IsEnabled;
         bool m_isActive;
diff --git a/src/server/game/Battlefield/BattlefieldMgr.cpp b/src/server/game/Battlefield/BattlefieldMgr.cpp
index c531e22bc20..eec9797ba1b 100644
--- a/src/server/game/Battlefield/BattlefieldMgr.cpp
+++ b/src/server/game/Battlefield/BattlefieldMgr.cpp
@@ -123,7 +123,7 @@ Battlefield* BattlefieldMgr::GetBattlefieldByBattleId(uint32 battleId)
     return NULL;
 }
 
-Battlefield* BattlefieldMgr::GetBattlefieldByGUID(uint64 guid)
+Battlefield* BattlefieldMgr::GetBattlefieldByGUID(ObjectGuid guid)
 {
     for (BattlefieldSet::iterator itr = _battlefieldSet.begin(); itr != _battlefieldSet.end(); ++itr)
         if ((*itr)->GetGUID() == guid)
diff --git a/src/server/game/Battlefield/BattlefieldMgr.h b/src/server/game/Battlefield/BattlefieldMgr.h
index 0fa4add13a8..8150f7e1ef7 100644
--- a/src/server/game/Battlefield/BattlefieldMgr.h
+++ b/src/server/game/Battlefield/BattlefieldMgr.h
@@ -44,7 +44,7 @@ class BattlefieldMgr
         // return assigned battlefield
         Battlefield* GetBattlefieldToZoneId(uint32 zoneId);
         Battlefield* GetBattlefieldByBattleId(uint32 battleId);
-        Battlefield* GetBattlefieldByGUID(uint64 guid);
+        Battlefield* GetBattlefieldByGUID(ObjectGuid guid);
 
         ZoneScript* GetZoneScript(uint32 zoneId);
 
diff --git a/src/server/game/Battlefield/Zones/BattlefieldWG.cpp b/src/server/game/Battlefield/Zones/BattlefieldWG.cpp
index e05c918f501..360d2d68bc3 100644
--- a/src/server/game/Battlefield/Zones/BattlefieldWG.cpp
+++ b/src/server/game/Battlefield/Zones/BattlefieldWG.cpp
@@ -268,7 +268,7 @@ void BattlefieldWG::OnBattleStart()
     // Initialize vehicle counter
     UpdateCounterVehicle(true);
     // Send start warning to all players
-    SendWarningToAllInZone(BATTLEFIELD_WG_TEXT_START);
+    SendWarning(BATTLEFIELD_WG_TEXT_START);
 }
 
 void BattlefieldWG::UpdateCounterVehicle(bool init)
@@ -301,7 +301,7 @@ void BattlefieldWG::OnBattleEnd(bool endByTimer)
     if (m_titansRelicGUID)
         if (GameObject* relic = GetGameObject(m_titansRelicGUID))
             relic->RemoveFromWorld();
-    m_titansRelicGUID = 0;
+    m_titansRelicGUID.Clear();
 
     // Remove turret
     for (GuidSet::const_iterator itr = CanonList.begin(); itr != CanonList.end(); ++itr)
@@ -409,9 +409,9 @@ void BattlefieldWG::OnBattleEnd(bool endByTimer)
     }
 
     if (!endByTimer) // win alli/horde
-        SendWarningToAllInZone((GetDefenderTeam() == TEAM_ALLIANCE) ? BATTLEFIELD_WG_TEXT_WIN_KEEP : BATTLEFIELD_WG_TEXT_WIN_KEEP + 1);
+        SendWarning((GetDefenderTeam() == TEAM_ALLIANCE) ? BATTLEFIELD_WG_TEXT_WIN_KEEP : BATTLEFIELD_WG_TEXT_WIN_KEEP + 1);
     else // defend alli/horde
-        SendWarningToAllInZone((GetDefenderTeam() == TEAM_ALLIANCE) ? BATTLEFIELD_WG_TEXT_DEFEND_KEEP : BATTLEFIELD_WG_TEXT_DEFEND_KEEP + 1);
+        SendWarning((GetDefenderTeam() == TEAM_ALLIANCE) ? BATTLEFIELD_WG_TEXT_DEFEND_KEEP : BATTLEFIELD_WG_TEXT_DEFEND_KEEP + 1);
 }
 
 // *******************************************************
@@ -442,7 +442,7 @@ void BattlefieldWG::DoCompleteOrIncrementAchievement(uint32 achievement, Player*
 
 void BattlefieldWG::OnStartGrouping()
 {
-    SendWarningToAllInZone(BATTLEFIELD_WG_TEXT_WILL_START);
+    SendWarning(BATTLEFIELD_WG_TEXT_WILL_START);
 }
 
 uint8 BattlefieldWG::GetSpiritGraveyardId(uint32 areaId) const
@@ -689,7 +689,7 @@ void BattlefieldWG::PromotePlayer(Player* killer)
         {
             killer->RemoveAura(SPELL_RECRUIT);
             killer->CastSpell(killer, SPELL_CORPORAL, true);
-            SendWarningToPlayer(killer, BATTLEFIELD_WG_TEXT_FIRSTRANK);
+            SendWarning(BATTLEFIELD_WG_TEXT_FIRSTRANK, killer);
         }
         else
             killer->CastSpell(killer, SPELL_RECRUIT, true);
@@ -700,7 +700,7 @@ void BattlefieldWG::PromotePlayer(Player* killer)
         {
             killer->RemoveAura(SPELL_CORPORAL);
             killer->CastSpell(killer, SPELL_LIEUTENANT, true);
-            SendWarningToPlayer(killer, BATTLEFIELD_WG_TEXT_SECONDRANK);
+            SendWarning(BATTLEFIELD_WG_TEXT_SECONDRANK, killer);
         }
         else
             killer->CastSpell(killer, SPELL_CORPORAL, true);
@@ -1065,7 +1065,6 @@ BfWGGameObjectBuilding::BfWGGameObjectBuilding(BattlefieldWG* wg)
 {
     m_WG = wg;
     m_Team = 0;
-    m_BuildGUID = 0;
     m_Type = 0;
     m_WorldState = 0;
     m_State = 0;
@@ -1117,13 +1116,13 @@ void BfWGGameObjectBuilding::Damaged()
 
     // Send warning message
     if (m_NameId)                                       // tower damage + name
-        m_WG->SendWarningToAllInZone(m_NameId);
+        m_WG->SendWarning(m_NameId);
 
-    for (uint64 guid : m_CreatureTopList[m_WG->GetAttackerTeam()])
+    for (ObjectGuid guid : m_CreatureTopList[m_WG->GetAttackerTeam()])
         if (Creature* creature = m_WG->GetCreature(guid))
             m_WG->HideNpc(creature);
 
-    for (uint64 guid : m_TurretTopList)
+    for (ObjectGuid guid : m_TurretTopList)
         if (Creature* creature = m_WG->GetCreature(guid))
             m_WG->HideNpc(creature);
 
@@ -1141,7 +1140,7 @@ void BfWGGameObjectBuilding::Destroyed()
 
     // Warn players
     if (m_NameId)
-        m_WG->SendWarningToAllInZone(m_NameId);
+        m_WG->SendWarning(m_NameId);
 
     switch (m_Type)
     {
@@ -1331,34 +1330,34 @@ void BfWGGameObjectBuilding::Init(GameObject* go, uint32 type, uint32 worldstate
 
 void BfWGGameObjectBuilding::UpdateCreatureAndGo()
 {
-    for (uint64 guid : m_CreatureTopList[m_WG->GetDefenderTeam()])
+    for (ObjectGuid guid : m_CreatureTopList[m_WG->GetDefenderTeam()])
         if (Creature* creature = m_WG->GetCreature(guid))
             m_WG->HideNpc(creature);
 
-    for (uint64 guid : m_CreatureTopList[m_WG->GetAttackerTeam()])
+    for (ObjectGuid guid : m_CreatureTopList[m_WG->GetAttackerTeam()])
         if (Creature* creature = m_WG->GetCreature(guid))
             m_WG->ShowNpc(creature, true);
 
-    for (uint64 guid : m_CreatureBottomList[m_WG->GetDefenderTeam()])
+    for (ObjectGuid guid : m_CreatureBottomList[m_WG->GetDefenderTeam()])
         if (Creature* creature = m_WG->GetCreature(guid))
             m_WG->HideNpc(creature);
 
-    for (uint64 guid : m_CreatureBottomList[m_WG->GetAttackerTeam()])
+    for (ObjectGuid guid : m_CreatureBottomList[m_WG->GetAttackerTeam()])
         if (Creature* creature = m_WG->GetCreature(guid))
             m_WG->ShowNpc(creature, true);
 
-    for (uint64 guid : m_GameObjectList[m_WG->GetDefenderTeam()])
+    for (ObjectGuid guid : m_GameObjectList[m_WG->GetDefenderTeam()])
         if (GameObject* object = m_WG->GetGameObject(guid))
             object->SetRespawnTime(RESPAWN_ONE_DAY);
 
-    for (uint64 guid : m_GameObjectList[m_WG->GetAttackerTeam()])
+    for (ObjectGuid guid : m_GameObjectList[m_WG->GetAttackerTeam()])
         if (GameObject* object = m_WG->GetGameObject(guid))
             object->SetRespawnTime(RESPAWN_IMMEDIATELY);
 }
 
 void BfWGGameObjectBuilding::UpdateTurretAttack(bool disable)
 {
-    for (uint64 guid : m_TowerCannonBottomList)
+    for (ObjectGuid guid : m_TowerCannonBottomList)
     {
         if (Creature* creature = m_WG->GetCreature(guid))
         {
@@ -1391,7 +1390,7 @@ void BfWGGameObjectBuilding::UpdateTurretAttack(bool disable)
         }
     }
 
-    for (uint64 guid : m_TurretTopList)
+    for (ObjectGuid guid : m_TurretTopList)
     {
         if (Creature* creature = m_WG->GetCreature(guid))
         {
@@ -1448,7 +1447,7 @@ void WGWorkshop::GiveControlTo(uint8 team, bool init)
         {
             // Send warning message to all player to inform a faction attack to a workshop
             // alliance / horde attacking a workshop
-            bf->SendWarningToAllInZone(teamControl ? WorkshopsData[workshopId].text : WorkshopsData[workshopId].text + 1);
+            bf->SendWarning(teamControl ? WorkshopsData[workshopId].text : WorkshopsData[workshopId].text + 1);
             break;
         }
         case BATTLEFIELD_WG_TEAM_ALLIANCE:
@@ -1460,7 +1459,7 @@ void WGWorkshop::GiveControlTo(uint8 team, bool init)
 
             // Warning message
             if (!init)                              // workshop taken - alliance
-                bf->SendWarningToAllInZone(team == BATTLEFIELD_WG_TEAM_ALLIANCE ? WorkshopsData[workshopId].text : WorkshopsData[workshopId].text + 1);
+                bf->SendWarning(team == BATTLEFIELD_WG_TEAM_ALLIANCE ? WorkshopsData[workshopId].text : WorkshopsData[workshopId].text + 1);
 
             // Found associate graveyard and update it
             if (workshopId < BATTLEFIELD_WG_WORKSHOP_KEEP_WEST)
@@ -1492,7 +1491,6 @@ void WGWorkshop::Save()
 WintergraspWorkshopData::WintergraspWorkshopData(BattlefieldWG* wg)
 {
     m_WG = wg;
-    m_BuildGUID = 0;
     m_Type = 0;
     m_State = 0;
     m_WorldState = 0;
@@ -1532,28 +1530,28 @@ void WintergraspWorkshopData::GiveControlTo(uint8 team, bool init)
         {
             // Send warning message to all player for inform a faction attack a workshop
             // alliance / horde attacking workshop
-            m_WG->SendWarningToAllInZone(m_TeamControl ? m_NameId : m_NameId + 1);
+            m_WG->SendWarning(m_TeamControl ? m_NameId : m_NameId + 1);
             break;
         }
         case BATTLEFIELD_WG_TEAM_ALLIANCE:
         {
             // Show Alliance creature
-            for (uint64 guid : m_CreatureOnPoint[TEAM_ALLIANCE])
+            for (ObjectGuid guid : m_CreatureOnPoint[TEAM_ALLIANCE])
                 if (Creature* creature = m_WG->GetCreature(guid))
                     m_WG->ShowNpc(creature, creature->GetEntry() != 30499);
 
             // Hide Horde creature
-            for (uint64 guid : m_CreatureOnPoint[TEAM_HORDE])
+            for (ObjectGuid guid : m_CreatureOnPoint[TEAM_HORDE])
                 if (Creature* creature = m_WG->GetCreature(guid))
                     m_WG->HideNpc(creature);
 
             // Show Alliance gameobject
-            for (uint64 guid : m_GameObjectOnPoint[TEAM_ALLIANCE])
+            for (ObjectGuid guid : m_GameObjectOnPoint[TEAM_ALLIANCE])
                 if (GameObject* object = m_WG->GetGameObject(guid))
                     object->SetRespawnTime(RESPAWN_IMMEDIATELY);
 
             // Hide Horde gameobject
-            for (uint64 guid : m_GameObjectOnPoint[TEAM_HORDE])
+            for (ObjectGuid guid : m_GameObjectOnPoint[TEAM_HORDE])
                 if (GameObject* object = m_WG->GetGameObject(guid))
                     object->SetRespawnTime(RESPAWN_ONE_DAY);
 
@@ -1564,7 +1562,7 @@ void WintergraspWorkshopData::GiveControlTo(uint8 team, bool init)
 
             // Warning message
             if (!init)                              // workshop taken - alliance
-                m_WG->SendWarningToAllInZone(m_NameId);
+                m_WG->SendWarning(m_NameId);
 
             // Found associate graveyard and update it
             if (m_Type < BATTLEFIELD_WG_WORKSHOP_KEEP_WEST)
@@ -1577,22 +1575,22 @@ void WintergraspWorkshopData::GiveControlTo(uint8 team, bool init)
         case BATTLEFIELD_WG_TEAM_HORDE:
         {
             // Show Horde creature
-            for (uint64 guid : m_CreatureOnPoint[TEAM_HORDE])
+            for (ObjectGuid guid : m_CreatureOnPoint[TEAM_HORDE])
                 if (Creature* creature = m_WG->GetCreature(guid))
                     m_WG->ShowNpc(creature, creature->GetEntry() != 30400);
 
             // Hide Alliance creature
-            for (uint64 guid : m_CreatureOnPoint[TEAM_ALLIANCE])
+            for (ObjectGuid guid : m_CreatureOnPoint[TEAM_ALLIANCE])
                 if (Creature* creature = m_WG->GetCreature(guid))
                     m_WG->HideNpc(creature);
 
             // Hide Alliance gameobject
-            for (uint64 guid : m_GameObjectOnPoint[TEAM_ALLIANCE])
+            for (ObjectGuid guid : m_GameObjectOnPoint[TEAM_ALLIANCE])
                 if (GameObject* object = m_WG->GetGameObject(guid))
                     object->SetRespawnTime(RESPAWN_ONE_DAY);
 
             // Show Horde gameobject
-            for (uint64 guid : m_GameObjectOnPoint[TEAM_HORDE])
+            for (ObjectGuid guid : m_GameObjectOnPoint[TEAM_HORDE])
                 if (GameObject* object = m_WG->GetGameObject(guid))
                     object->SetRespawnTime(RESPAWN_IMMEDIATELY);
 
@@ -1602,7 +1600,7 @@ void WintergraspWorkshopData::GiveControlTo(uint8 team, bool init)
 
             // Warning message
             if (!init)                              // workshop taken - horde
-                m_WG->SendWarningToAllInZone(m_NameId + 1);
+                m_WG->SendWarning(m_NameId + 1);
 
             // Update graveyard control
             if (m_Type < BATTLEFIELD_WG_WORKSHOP_KEEP_WEST)
diff --git a/src/server/game/Battlefield/Zones/BattlefieldWG.h b/src/server/game/Battlefield/Zones/BattlefieldWG.h
index 622236b4162..7f2e6194222 100644
--- a/src/server/game/Battlefield/Zones/BattlefieldWG.h
+++ b/src/server/game/Battlefield/Zones/BattlefieldWG.h
@@ -383,7 +383,7 @@ class BattlefieldWG : public Battlefield
         GameObject* GetRelic() { return GetGameObject(m_titansRelicGUID); }
 
         /// Define relic object
-        void SetRelic(uint64 relicGUID) { m_titansRelicGUID = relicGUID; }
+        void SetRelic(ObjectGuid relicGUID) { m_titansRelicGUID = relicGUID; }
 
         /// Check if players can interact with the relic (Only if the last door has been broken)
         bool CanInteractWithRelic() { return m_isRelicInteractible; }
@@ -429,7 +429,7 @@ class BattlefieldWG : public Battlefield
         uint32 m_tenacityStack;
         uint32 m_saveTimer;
 
-        uint64 m_titansRelicGUID;
+        ObjectGuid m_titansRelicGUID;
 };
 
 uint32 const VehNumWorldState[]        = { 3680, 3490 };
@@ -578,7 +578,7 @@ struct WintergraspBuildingSpawnData
 
 struct WintergraspRebuildableBuildingData
 {
-    uint64 Guid;
+    ObjectGuid Guid;
     uint32 entry;
     uint32 WorldState;
     float x;
@@ -1068,7 +1068,7 @@ struct BfWGGameObjectBuilding
     BattlefieldWG* m_WG;
 
     // Linked gameobject
-    uint64 m_BuildGUID;
+    ObjectGuid m_BuildGUID;
 
     // eWGGameObjectBuildingType
     uint32 m_Type;
@@ -1132,7 +1132,7 @@ struct WGWorkshop
 struct WintergraspWorkshopData
 {
     BattlefieldWG* m_WG;                                    // Pointer to wintergrasp
-    uint64 m_BuildGUID;
+    ObjectGuid m_BuildGUID;
     uint32 m_Type;
     uint32 m_State;                                         // For worldstate
     uint32 m_WorldState;
diff --git a/src/server/game/Battlegrounds/Arena.cpp b/src/server/game/Battlegrounds/Arena.cpp
index 7a72afa2b12..39fff2529b9 100644
--- a/src/server/game/Battlegrounds/Arena.cpp
+++ b/src/server/game/Battlegrounds/Arena.cpp
@@ -62,7 +62,7 @@ void Arena::AddPlayer(Player* player)
     UpdateArenaWorldState();
 }
 
-void Arena::RemovePlayer(Player* /*player*/, uint64 /*guid*/, uint32 /*team*/)
+void Arena::RemovePlayer(Player* /*player*/, ObjectGuid /*guid*/, uint32 /*team*/)
 {
     if (GetStatus() == STATUS_WAIT_LEAVE)
         return;
@@ -94,7 +94,7 @@ void Arena::HandleKillPlayer(Player* player, Player* killer)
     CheckWinConditions();
 }
 
-void Arena::RemovePlayerAtLeave(uint64 guid, bool transport, bool sendPacket)
+void Arena::RemovePlayerAtLeave(ObjectGuid guid, bool transport, bool sendPacket)
 {
     if (isRated() && GetStatus() == STATUS_IN_PROGRESS)
     {
@@ -180,7 +180,7 @@ void Arena::EndBattleground(uint32 winner)
 
                 if (sWorld->getBoolConfig(CONFIG_ARENA_LOG_EXTENDED_INFO))
                     for (auto const& score : PlayerScores)
-                        if (Player* player = ObjectAccessor::FindPlayer(MAKE_NEW_GUID(score.first, 0, HIGHGUID_PLAYER)))
+                        if (Player* player = ObjectAccessor::FindPlayer(ObjectGuid(HIGHGUID_PLAYER, score.first)))
                         {
                             TC_LOG_DEBUG("bg.arena", "Statistics match Type: %u for %s (GUID: %u, Team: %d, IP: %s): %s",
                                 GetArenaType(), player->GetName().c_str(), score.first, player->GetArenaTeamId(GetArenaType() == 5 ? 2 : GetArenaType() == 3),
diff --git a/src/server/game/Battlegrounds/Arena.h b/src/server/game/Battlegrounds/Arena.h
index 8aea92d496d..4f622618bd4 100644
--- a/src/server/game/Battlegrounds/Arena.h
+++ b/src/server/game/Battlegrounds/Arena.h
@@ -42,7 +42,7 @@ class Arena : public Battleground
         Arena();
 
         void AddPlayer(Player* player) override;
-        void RemovePlayer(Player* /*player*/, uint64 /*guid*/, uint32 /*team*/) override;
+        void RemovePlayer(Player* /*player*/, ObjectGuid /*guid*/, uint32 /*team*/) override;
 
         void FillInitialWorldStates(WorldPacket& data) override;
         void UpdateArenaWorldState();
@@ -50,7 +50,7 @@ class Arena : public Battleground
         void HandleKillPlayer(Player* player, Player* killer) override;
 
     private:
-        void RemovePlayerAtLeave(uint64 guid, bool transport, bool sendPacket) override;
+        void RemovePlayerAtLeave(ObjectGuid guid, bool transport, bool sendPacket) override;
         void CheckWinConditions() override;
         void EndBattleground(uint32 winner) override;
 };
diff --git a/src/server/game/Battlegrounds/ArenaScore.h b/src/server/game/Battlegrounds/ArenaScore.h
index 6de7fae8d05..a1847f546ea 100644
--- a/src/server/game/Battlegrounds/ArenaScore.h
+++ b/src/server/game/Battlegrounds/ArenaScore.h
@@ -28,7 +28,7 @@ struct ArenaScore : public BattlegroundScore
     friend class Arena;
 
     protected:
-        ArenaScore(uint64 playerGuid, uint32 team) : BattlegroundScore(playerGuid, team), TeamId(team == ALLIANCE ? BG_TEAM_ALLIANCE : BG_TEAM_HORDE) { }
+        ArenaScore(ObjectGuid playerGuid, uint32 team) : BattlegroundScore(playerGuid, team), TeamId(team == ALLIANCE ? BG_TEAM_ALLIANCE : BG_TEAM_HORDE) { }
 
         void AppendToPacket(WorldPacket& data, ByteBuffer& content) final override
         {
diff --git a/src/server/game/Battlegrounds/ArenaTeam.cpp b/src/server/game/Battlegrounds/ArenaTeam.cpp
index d55fe33e192..c26238cdc9c 100644
--- a/src/server/game/Battlegrounds/ArenaTeam.cpp
+++ b/src/server/game/Battlegrounds/ArenaTeam.cpp
@@ -17,17 +17,17 @@
  */
 
 #include "ObjectMgr.h"
+#include "Player.h"
 #include "WorldPacket.h"
 #include "ArenaTeam.h"
 #include "World.h"
 #include "Group.h"
 #include "ArenaTeamMgr.h"
-#include "Player.h"
 #include "WorldSession.h"
 #include "Opcodes.h"
 
 ArenaTeam::ArenaTeam()
-    : TeamId(0), Type(0), TeamName(), CaptainGuid(0), BackgroundColor(0), EmblemStyle(0), EmblemColor(0),
+    : TeamId(0), Type(0), TeamName(), CaptainGuid(), BackgroundColor(0), EmblemStyle(0), EmblemColor(0),
     BorderStyle(0), BorderColor(0)
 {
     Stats.WeekGames   = 0;
@@ -41,16 +41,14 @@ ArenaTeam::ArenaTeam()
 ArenaTeam::~ArenaTeam()
 { }
 
-bool ArenaTeam::Create(uint64 captainGuid, uint8 type, std::string const& arenaTeamName,
-                                         uint32 backgroundColor, uint8 emblemStyle, uint32 emblemColor,
-                                         uint8 borderStyle, uint32 borderColor)
+bool ArenaTeam::Create(ObjectGuid captainGuid, uint8 type, std::string const& teamName, uint32 backgroundColor, uint8 emblemStyle, uint32 emblemColor, uint8 borderStyle, uint32 borderColor)
 {
     // Check if captain is present
     if (!ObjectAccessor::FindPlayer(captainGuid))
         return false;
 
     // Check if arena team name is already taken
-    if (sArenaTeamMgr->GetArenaTeamByName(arenaTeamName))
+    if (sArenaTeamMgr->GetArenaTeamByName(teamName))
         return false;
 
     // Generate new arena team id
@@ -59,13 +57,13 @@ bool ArenaTeam::Create(uint64 captainGuid, uint8 type, std::string const& arenaT
     // Assign member variables
     CaptainGuid = captainGuid;
     Type = type;
-    TeamName = arenaTeamName;
+    TeamName = teamName;
     BackgroundColor = backgroundColor;
     EmblemStyle = emblemStyle;
     EmblemColor = emblemColor;
     BorderStyle = borderStyle;
     BorderColor = borderColor;
-    uint32 captainLowGuid = GUID_LOPART(captainGuid);
+    uint32 captainLowGuid = captainGuid.GetCounter();
 
     // Save arena team to db
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_INS_ARENA_TEAM);
@@ -88,7 +86,7 @@ bool ArenaTeam::Create(uint64 captainGuid, uint8 type, std::string const& arenaT
     return true;
 }
 
-bool ArenaTeam::AddMember(uint64 playerGuid)
+bool ArenaTeam::AddMember(ObjectGuid playerGuid)
 {
     std::string playerName;
     uint8 playerClass;
@@ -109,7 +107,7 @@ bool ArenaTeam::AddMember(uint64 playerGuid)
         //          0     1
         // SELECT name, class FROM characters WHERE guid = ?
         PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_CHARACTER_NAME_CLASS);
-        stmt->setUInt32(0, GUID_LOPART(playerGuid));
+        stmt->setUInt32(0, playerGuid.GetCounter());
         PreparedQueryResult result = CharacterDatabase.Query(stmt);
 
         if (!result)
@@ -122,7 +120,7 @@ bool ArenaTeam::AddMember(uint64 playerGuid)
     // Check if player is already in a similar arena team
     if ((player && player->GetArenaTeamId(GetSlot())) || Player::GetArenaTeamIdFromDB(playerGuid, GetType()) != 0)
     {
-        TC_LOG_DEBUG("bg.arena", "Arena: Player %s (guid: %u) already has an arena team of type %u", playerName.c_str(), GUID_LOPART(playerGuid), GetType());
+        TC_LOG_DEBUG("bg.arena", "Arena: Player %s (guid: %u) already has an arena team of type %u", playerName.c_str(), playerGuid.GetCounter(), GetType());
         return false;
     }
 
@@ -136,7 +134,7 @@ bool ArenaTeam::AddMember(uint64 playerGuid)
 
     // Try to get player's match maker rating from db and fall back to config setting if not found
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_MATCH_MAKER_RATING);
-    stmt->setUInt32(0, GUID_LOPART(playerGuid));
+    stmt->setUInt32(0, playerGuid.GetCounter());
     stmt->setUInt8(1, GetSlot());
     PreparedQueryResult result = CharacterDatabase.Query(stmt);
 
@@ -167,7 +165,7 @@ bool ArenaTeam::AddMember(uint64 playerGuid)
     // Save player's arena team membership to db
     stmt = CharacterDatabase.GetPreparedStatement(CHAR_INS_ARENA_TEAM_MEMBER);
     stmt->setUInt32(0, TeamId);
-    stmt->setUInt32(1, GUID_LOPART(playerGuid));
+    stmt->setUInt32(1, playerGuid.GetCounter());
     CharacterDatabase.Execute(stmt);
 
     // Inform player if online
@@ -181,7 +179,7 @@ bool ArenaTeam::AddMember(uint64 playerGuid)
             player->SetArenaTeamInfoField(GetSlot(), ARENA_TEAM_MEMBER, 1);
     }
 
-    TC_LOG_DEBUG("bg.arena", "Player: %s [GUID: %u] joined arena team type: %u [Id: %u, Name: %s].", playerName.c_str(), GUID_LOPART(playerGuid), GetType(), GetId(), GetName().c_str());
+    TC_LOG_INFO("bg.arena", "Player: %s [GUID: %u] joined arena team type: %u [Id: %u, Name: %s].", playerName.c_str(), playerGuid.GetCounter(), GetType(), GetId(), GetName().c_str());
 
     return true;
 }
@@ -195,7 +193,7 @@ bool ArenaTeam::LoadArenaTeamFromDB(QueryResult result)
 
     TeamId            = fields[0].GetUInt32();
     TeamName          = fields[1].GetString();
-    CaptainGuid       = MAKE_NEW_GUID(fields[2].GetUInt32(), 0, HIGHGUID_PLAYER);
+    CaptainGuid       = ObjectGuid(HIGHGUID_PLAYER, fields[2].GetUInt32());
     Type              = fields[3].GetUInt8();
     BackgroundColor   = fields[4].GetUInt32();
     EmblemStyle       = fields[5].GetUInt8();
@@ -234,7 +232,7 @@ bool ArenaTeam::LoadMembersFromDB(QueryResult result)
             break;
 
         ArenaTeamMember newMember;
-        newMember.Guid             = MAKE_NEW_GUID(fields[1].GetUInt32(), 0, HIGHGUID_PLAYER);
+        newMember.Guid             = ObjectGuid(HIGHGUID_PLAYER, fields[1].GetUInt32());
         newMember.WeekGames        = fields[2].GetUInt16();
         newMember.WeekWins         = fields[3].GetUInt16();
         newMember.SeasonGames      = fields[4].GetUInt16();
@@ -247,7 +245,7 @@ bool ArenaTeam::LoadMembersFromDB(QueryResult result)
         // Delete member if character information is missing
         if (newMember.Name.empty())
         {
-            TC_LOG_ERROR("sql.sql", "ArenaTeam %u has member with empty name - probably player %u doesn't exist, deleting him from memberlist!", arenaTeamId, GUID_LOPART(newMember.Guid));
+            TC_LOG_ERROR("sql.sql", "ArenaTeam %u has member with empty name - probably player %u doesn't exist, deleting him from memberlist!", arenaTeamId, newMember.Guid.GetCounter());
             DelMember(newMember.Guid, true);
             continue;
         }
@@ -284,7 +282,7 @@ bool ArenaTeam::SetName(std::string const& name)
     return true;
 }
 
-void ArenaTeam::SetCaptain(uint64 guid)
+void ArenaTeam::SetCaptain(ObjectGuid guid)
 {
     // Disable remove/promote buttons
     Player* oldCaptain = ObjectAccessor::FindPlayer(GetCaptain());
@@ -296,7 +294,7 @@ void ArenaTeam::SetCaptain(uint64 guid)
 
     // Update database
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_UPD_ARENA_TEAM_CAPTAIN);
-    stmt->setUInt32(0, GUID_LOPART(guid));
+    stmt->setUInt32(0, guid.GetCounter());
     stmt->setUInt32(1, GetId());
     CharacterDatabase.Execute(stmt);
 
@@ -313,7 +311,7 @@ void ArenaTeam::SetCaptain(uint64 guid)
     }
 }
 
-void ArenaTeam::DelMember(uint64 guid, bool cleanDb)
+void ArenaTeam::DelMember(ObjectGuid guid, bool cleanDb)
 {
     // Remove member from team
     for (MemberList::iterator itr = Members.begin(); itr != Members.end(); ++itr)
@@ -337,7 +335,7 @@ void ArenaTeam::DelMember(uint64 guid, bool cleanDb)
     {
         PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_ARENA_TEAM_MEMBER);
         stmt->setUInt32(0, GetId());
-        stmt->setUInt32(1, GUID_LOPART(guid));
+        stmt->setUInt32(1, guid.GetCounter());
         CharacterDatabase.Execute(stmt);
     }
 }
@@ -347,7 +345,7 @@ void ArenaTeam::Disband(WorldSession* session)
     // Broadcast update
     if (session)
     {
-        BroadcastEvent(ERR_ARENA_TEAM_DISBANDED_S, 0, 2, session->GetPlayerName(), GetName(), "");
+        BroadcastEvent(ERR_ARENA_TEAM_DISBANDED_S, ObjectGuid::Empty, 2, session->GetPlayerName(), GetName(), "");
         if (Player* player = session->GetPlayer())
             TC_LOG_DEBUG("bg.arena", "Player: %s [GUID: %u] disbanded arena team type: %u [Id: %u, Name: %s].", player->GetName().c_str(), player->GetGUIDLow(), GetType(), GetId(), GetName().c_str());
     }
@@ -471,7 +469,7 @@ void ArenaTeam::NotifyStatsChanged()
             SendStats(player->GetSession());
 }
 
-void ArenaTeam::Inspect(WorldSession* session, uint64 guid)
+void ArenaTeam::Inspect(WorldSession* session, ObjectGuid guid)
 {
     ArenaTeamMember* member = GetMember(guid);
     if (!member)
@@ -518,7 +516,7 @@ void ArenaTeam::BroadcastPacket(WorldPacket* packet)
             player->GetSession()->SendPacket(packet);
 }
 
-void ArenaTeam::BroadcastEvent(ArenaTeamEvents event, uint64 guid, uint8 strCount, std::string const& str1, std::string const& str2, std::string const& str3)
+void ArenaTeam::BroadcastEvent(ArenaTeamEvents event, ObjectGuid guid, uint8 strCount, std::string const& str1, std::string const& str2, std::string const& str3)
 {
     WorldPacket data(SMSG_ARENA_TEAM_EVENT, 1+1+1);
     data << uint8(event);
@@ -558,7 +556,7 @@ void ArenaTeam::MassInviteToEvent(WorldSession* session)
     {
         if (itr->Guid != session->GetPlayer()->GetGUID())
         {
-            data.appendPackGUID(itr->Guid);
+            data << itr->Guid.WriteAsPacked();
             data << uint8(0); // unk
         }
     }
@@ -594,7 +592,7 @@ uint8 ArenaTeam::GetTypeBySlot(uint8 slot)
     return 0xFF;
 }
 
-bool ArenaTeam::IsMember(uint64 guid) const
+bool ArenaTeam::IsMember(ObjectGuid guid) const
 {
     for (MemberList::const_iterator itr = Members.begin(); itr != Members.end(); ++itr)
         if (itr->Guid == guid)
@@ -781,7 +779,7 @@ void ArenaTeam::MemberLost(Player* player, uint32 againstMatchmakerRating, int32
     }
 }
 
-void ArenaTeam::OfflineMemberLost(uint64 guid, uint32 againstMatchmakerRating, int32 matchmakerRatingChange)
+void ArenaTeam::OfflineMemberLost(ObjectGuid guid, uint32 againstMatchmakerRating, int32 MatchmakerRatingChange)
 {
     // Called for offline player after ending rated arena match!
     for (MemberList::iterator itr = Members.begin(); itr != Members.end(); ++itr)
@@ -793,7 +791,7 @@ void ArenaTeam::OfflineMemberLost(uint64 guid, uint32 againstMatchmakerRating, i
             itr->ModifyPersonalRating(NULL, mod, GetType());
 
             // update matchmaker rating
-            itr->ModifyMatchmakerRating(matchmakerRatingChange, GetSlot());
+            itr->ModifyMatchmakerRating(MatchmakerRatingChange, GetSlot());
 
             // update personal played stats
             itr->WeekGames += 1;
@@ -856,11 +854,11 @@ void ArenaTeam::SaveToDB()
         stmt->setUInt16(3, itr->SeasonGames);
         stmt->setUInt16(4, itr->SeasonWins);
         stmt->setUInt32(5, GetId());
-        stmt->setUInt32(6, GUID_LOPART(itr->Guid));
+        stmt->setUInt32(6, itr->Guid.GetCounter());
         trans->Append(stmt);
 
         stmt = CharacterDatabase.GetPreparedStatement(CHAR_REP_CHARACTER_ARENA_STATS);
-        stmt->setUInt32(0, GUID_LOPART(itr->Guid));
+        stmt->setUInt32(0, itr->Guid.GetCounter());
         stmt->setUInt8(1, GetSlot());
         stmt->setUInt16(2, itr->MatchMakerRating);
         trans->Append(stmt);
@@ -902,7 +900,7 @@ ArenaTeamMember* ArenaTeam::GetMember(const std::string& name)
     return NULL;
 }
 
-ArenaTeamMember* ArenaTeam::GetMember(uint64 guid)
+ArenaTeamMember* ArenaTeam::GetMember(ObjectGuid guid)
 {
     for (MemberList::iterator itr = Members.begin(); itr != Members.end(); ++itr)
         if (itr->Guid == guid)
diff --git a/src/server/game/Battlegrounds/ArenaTeam.h b/src/server/game/Battlegrounds/ArenaTeam.h
index 25808f14c1b..038fad50221 100644
--- a/src/server/game/Battlegrounds/ArenaTeam.h
+++ b/src/server/game/Battlegrounds/ArenaTeam.h
@@ -21,6 +21,7 @@
 
 #include "Define.h"
 #include "QueryResult.h"
+#include "ObjectGuid.h"
 #include <list>
 #include <string>
 #include <map>
@@ -82,7 +83,7 @@ enum ArenaTeamTypes
 
 struct ArenaTeamMember
 {
-    uint64 Guid;
+    ObjectGuid Guid;
     std::string Name;
     uint8 Class;
     uint16 WeekGames;
@@ -114,9 +115,7 @@ class ArenaTeam
         ArenaTeam();
         ~ArenaTeam();
 
-        bool Create(uint64 captainGuid, uint8 type, std::string const& teamName,
-                                      uint32 backgroundColor, uint8 emblemStyle, uint32 emblemColor,
-                                      uint8 borderStyle, uint32 borderColor);
+        bool Create(ObjectGuid captainGuid, uint8 type, std::string const& teamName, uint32 backgroundColor, uint8 emblemStyle, uint32 emblemColor, uint8 borderStyle, uint32 borderColor);
         void Disband(WorldSession* session);
         void Disband();
 
@@ -127,25 +126,25 @@ class ArenaTeam
         uint8  GetSlot() const { return GetSlotByType(GetType()); }
         static uint8 GetSlotByType(uint32 type);
         static uint8 GetTypeBySlot(uint8 slot);
-        uint64 GetCaptain() const { return CaptainGuid; }
+        ObjectGuid GetCaptain() const { return CaptainGuid; }
         std::string const& GetName() const { return TeamName; }
         const ArenaTeamStats& GetStats() const { return Stats; }
 
         uint32 GetRating() const          { return Stats.Rating; }
         uint32 GetAverageMMR(Group* group) const;
 
-        void SetCaptain(uint64 guid);
+        void SetCaptain(ObjectGuid guid);
         bool SetName(std::string const& name);
-        bool AddMember(uint64 PlayerGuid);
-        void DelMember(uint64 guid, bool cleanDb);
+        bool AddMember(ObjectGuid PlayerGuid);
+        void DelMember(ObjectGuid guid, bool cleanDb);
 
         size_t GetMembersSize() const         { return Members.size(); }
         bool   Empty() const                  { return Members.empty(); }
         MemberList::iterator m_membersBegin() { return Members.begin(); }
         MemberList::iterator m_membersEnd()   { return Members.end(); }
-        bool IsMember(uint64 guid) const;
+        bool IsMember(ObjectGuid guid) const;
 
-        ArenaTeamMember* GetMember(uint64 guid);
+        ArenaTeamMember* GetMember(ObjectGuid guid);
         ArenaTeamMember* GetMember(std::string const& name);
 
         bool IsFighting() const;
@@ -156,7 +155,7 @@ class ArenaTeam
         void SaveToDB();
 
         void BroadcastPacket(WorldPacket* packet);
-        void BroadcastEvent(ArenaTeamEvents event, uint64 guid, uint8 strCount, std::string const& str1, std::string const& str2, std::string const& str3);
+        void BroadcastEvent(ArenaTeamEvents event, ObjectGuid guid, uint8 strCount, std::string const& str1, std::string const& str2, std::string const& str3);
         void NotifyStatsChanged();
 
         void MassInviteToEvent(WorldSession* session);
@@ -164,18 +163,20 @@ class ArenaTeam
         void Roster(WorldSession* session);
         void Query(WorldSession* session);
         void SendStats(WorldSession* session);
-        void Inspect(WorldSession* session, uint64 guid);
+        void Inspect(WorldSession* session, ObjectGuid guid);
+
+        uint32 GetPoints(uint32 MemberRating);
+        int32  GetMatchmakerRatingMod(uint32 ownRating, uint32 opponentRating, bool won);
+        int32  GetRatingMod(uint32 ownRating, uint32 opponentRating, bool won);
+        float  GetChanceAgainst(uint32 ownRating, uint32 opponentRating);
+        int32  WonAgainst(uint32 Own_MMRating, uint32 Opponent_MMRating, int32& rating_change);
+        void   MemberWon(Player* player, uint32 againstMatchmakerRating, int32 MatchmakerRatingChange);
+        int32  LostAgainst(uint32 Own_MMRating, uint32 Opponent_MMRating, int32& rating_change);
+        void   MemberLost(Player* player, uint32 againstMatchmakerRating, int32 MatchmakerRatingChange = -12);
+        void   OfflineMemberLost(ObjectGuid guid, uint32 againstMatchmakerRating, int32 MatchmakerRatingChange = -12);
 
-        static int32 GetMatchmakerRatingMod(uint32 ownRating, uint32 opponentRating, bool won);
-        static int32 GetRatingMod(uint32 ownRating, uint32 opponentRating, bool won);
-        static float GetChanceAgainst(uint32 ownRating, uint32 opponentRating);
 
-        int32 WonAgainst(uint32 ownMMRating, uint32 opponentMMRating, int32& rating_change);
-        void MemberWon(Player* player, uint32 againstMatchmakerRating, int32 matchmakerRatingChange = 12);
 
-        int32 LostAgainst(uint32 ownMMRating, uint32 opponentMMRating, int32& rating_change);
-        void MemberLost(Player* player, uint32 againstMatchmakerRating, int32 matchmakerRatingChange = -12);
-        void OfflineMemberLost(uint64 guid, uint32 againstMatchmakerRating, int32 matchmakerRatingChange = -12);
 
         void FinishWeek();
         void FinishGame(int32 mod);
@@ -185,7 +186,7 @@ class ArenaTeam
         uint32 TeamId;
         uint8  Type;
         std::string TeamName;
-        uint64 CaptainGuid;
+        ObjectGuid  CaptainGuid;
 
         uint32 BackgroundColor; // ARGB format
         uint8  EmblemStyle;     // icon id
diff --git a/src/server/game/Battlegrounds/ArenaTeamMgr.cpp b/src/server/game/Battlegrounds/ArenaTeamMgr.cpp
index 0098c8a1bcb..be7576bcc8a 100644
--- a/src/server/game/Battlegrounds/ArenaTeamMgr.cpp
+++ b/src/server/game/Battlegrounds/ArenaTeamMgr.cpp
@@ -59,7 +59,7 @@ ArenaTeam* ArenaTeamMgr::GetArenaTeamByName(const std::string& arenaTeamName) co
     return NULL;
 }
 
-ArenaTeam* ArenaTeamMgr::GetArenaTeamByCaptain(uint64 guid) const
+ArenaTeam* ArenaTeamMgr::GetArenaTeamByCaptain(ObjectGuid guid) const
 {
     for (ArenaTeamContainer::const_iterator itr = ArenaTeamStore.begin(); itr != ArenaTeamStore.end(); ++itr)
         if (itr->second->GetCaptain() == guid)
diff --git a/src/server/game/Battlegrounds/ArenaTeamMgr.h b/src/server/game/Battlegrounds/ArenaTeamMgr.h
index eaf39278c28..fb162d63ea9 100644
--- a/src/server/game/Battlegrounds/ArenaTeamMgr.h
+++ b/src/server/game/Battlegrounds/ArenaTeamMgr.h
@@ -37,7 +37,7 @@ public:
 
     ArenaTeam* GetArenaTeamById(uint32 arenaTeamId) const;
     ArenaTeam* GetArenaTeamByName(std::string const& arenaTeamName) const;
-    ArenaTeam* GetArenaTeamByCaptain(uint64 guid) const;
+    ArenaTeam* GetArenaTeamByCaptain(ObjectGuid guid) const;
 
     void LoadArenaTeams();
     void AddArenaTeam(ArenaTeam* arenaTeam);
diff --git a/src/server/game/Battlegrounds/Battleground.cpp b/src/server/game/Battlegrounds/Battleground.cpp
index 1a1f3b94577..b1189e6c03e 100644
--- a/src/server/game/Battlegrounds/Battleground.cpp
+++ b/src/server/game/Battlegrounds/Battleground.cpp
@@ -43,7 +43,7 @@ namespace Trinity
     class BattlegroundChatBuilder
     {
         public:
-            BattlegroundChatBuilder(ChatMsg msgtype, int32 textId, Player const* source, va_list* args = NULL)
+            BattlegroundChatBuilder(ChatMsg msgtype, uint32 textId, Player const* source, va_list* args = NULL)
                 : _msgtype(msgtype), _textId(textId), _source(source), _args(args) { }
 
             void operator()(WorldPacket& data, LocaleConstant loc_idx)
@@ -72,7 +72,7 @@ namespace Trinity
             }
 
             ChatMsg _msgtype;
-            int32 _textId;
+            uint32 _textId;
             Player const* _source;
             va_list* _args;
     };
@@ -80,7 +80,7 @@ namespace Trinity
     class Battleground2ChatBuilder
     {
         public:
-            Battleground2ChatBuilder(ChatMsg msgtype, int32 textId, Player const* source, int32 arg1, int32 arg2)
+            Battleground2ChatBuilder(ChatMsg msgtype, uint32 textId, Player const* source, uint32 arg1, uint32 arg2)
                 : _msgtype(msgtype), _textId(textId), _source(source), _arg1(arg1), _arg2(arg2) { }
 
             void operator()(WorldPacket& data, LocaleConstant loc_idx)
@@ -97,10 +97,10 @@ namespace Trinity
 
         private:
             ChatMsg _msgtype;
-            int32 _textId;
+            uint32 _textId;
             Player const* _source;
-            int32 _arg1;
-            int32 _arg2;
+            uint32 _arg1;
+            uint32 _arg2;
     };
 } // namespace Trinity
 
@@ -114,7 +114,6 @@ void Battleground::BroadcastWorker(Do& _do)
 
 Battleground::Battleground()
 {
-    m_Guid              = 0;
     m_TypeID            = BATTLEGROUND_TYPE_NONE;
     m_RandomTypeID      = BATTLEGROUND_TYPE_NONE;
     m_InstanceID        = 0;
@@ -137,7 +136,6 @@ Battleground::Battleground()
     m_IsRated           = false;
     m_BuffChange        = false;
     m_IsRandom          = false;
-    m_Name              = "";
     m_LevelMin          = 0;
     m_LevelMax          = 0;
     m_InBGFreeSlotQueue = false;
@@ -335,10 +333,10 @@ inline void Battleground::_ProcessResurrect(uint32 diff)
     {
         if (GetReviveQueueSize())
         {
-            for (std::map<uint64, std::vector<uint64> >::iterator itr = m_ReviveQueue.begin(); itr != m_ReviveQueue.end(); ++itr)
+            for (std::map<ObjectGuid, GuidVector>::iterator itr = m_ReviveQueue.begin(); itr != m_ReviveQueue.end(); ++itr)
             {
                 Creature* sh = NULL;
-                for (std::vector<uint64>::const_iterator itr2 = (itr->second).begin(); itr2 != (itr->second).end(); ++itr2)
+                for (GuidVector::const_iterator itr2 = (itr->second).begin(); itr2 != (itr->second).end(); ++itr2)
                 {
                     Player* player = ObjectAccessor::FindPlayer(*itr2);
                     if (!player)
@@ -369,7 +367,7 @@ inline void Battleground::_ProcessResurrect(uint32 diff)
     }
     else if (m_LastResurrectTime > 500)    // Resurrect players only half a second later, to see spirit heal effect on NPC
     {
-        for (std::vector<uint64>::const_iterator itr = m_ResurrectQueue.begin(); itr != m_ResurrectQueue.end(); ++itr)
+        for (GuidVector::const_iterator itr = m_ResurrectQueue.begin(); itr != m_ResurrectQueue.end(); ++itr)
         {
             Player* player = ObjectAccessor::FindPlayer(*itr);
             if (!player)
@@ -595,7 +593,7 @@ inline void Battleground::_ProcessLeave(uint32 diff)
     }
 }
 
-Player* Battleground::_GetPlayer(uint64 guid, bool offlineRemove, char const* context) const
+Player* Battleground::_GetPlayer(ObjectGuid guid, bool offlineRemove, char const* context) const
 {
     Player* player = NULL;
     if (!offlineRemove)
@@ -603,7 +601,7 @@ Player* Battleground::_GetPlayer(uint64 guid, bool offlineRemove, char const* co
         player = ObjectAccessor::FindPlayer(guid);
         if (!player)
             TC_LOG_ERROR("bg.battleground", "Battleground::%s: player (GUID: %u) not found for BG (map: %u, instance id: %u)!",
-                context, GUID_LOPART(guid), m_MapId, m_InstanceID);
+                context, guid.GetCounter(), m_MapId, m_InstanceID);
     }
     return player;
 }
@@ -655,7 +653,7 @@ void Battleground::SendPacketToTeam(uint32 TeamID, WorldPacket* packet, Player*
 
 void Battleground::SendChatMessage(Creature* source, uint8 textId, WorldObject* target /*= NULL*/)
 {
-    sCreatureTextMgr->SendChat(source, textId, target, CHAT_MSG_ADDON, LANG_ADDON, TEXT_RANGE_MAP);
+    sCreatureTextMgr->SendChat(source, textId, target);
 }
 
 void Battleground::PlaySoundToAll(uint32 SoundID)
@@ -904,7 +902,7 @@ void Battleground::BlockMovement(Player* player)
     player->SetClientControl(player, 0);                          // movement disabled NOTE: the effect will be automatically removed by client when the player is teleported from the battleground, so no need to send with uint8(1) in RemovePlayerAtLeave()
 }
 
-void Battleground::RemovePlayerAtLeave(uint64 guid, bool Transport, bool SendPacket)
+void Battleground::RemovePlayerAtLeave(ObjectGuid guid, bool Transport, bool SendPacket)
 {
     uint32 team = GetPlayerTeam(guid);
     bool participant = false;
@@ -918,7 +916,7 @@ void Battleground::RemovePlayerAtLeave(uint64 guid, bool Transport, bool SendPac
         participant = true;
     }
 
-    BattlegroundScoreMap::iterator itr2 = PlayerScores.find(GUID_LOPART(guid));
+    BattlegroundScoreMap::iterator itr2 = PlayerScores.find(guid.GetCounter());
     if (itr2 != PlayerScores.end())
     {
         delete itr2->second;                                // delete player's score
@@ -1069,7 +1067,6 @@ void Battleground::AddPlayer(Player* player)
 
     // score struct must be created in inherited class
 
-    uint64 guid = player->GetGUID();
     uint32 team = player->GetBGTeam();
     int32  primaryTree = player->GetPrimaryTalentTree(player->GetActiveSpec());
 
@@ -1079,7 +1076,7 @@ void Battleground::AddPlayer(Player* player)
     bp.PrimaryTree = primaryTree;
 
     // Add to list/maps
-    m_Players[guid] = bp;
+    m_Players[player->GetGUID()] = bp;
 
     UpdatePlayersCountByTeam(team, false);                  // +1 player
 
@@ -1144,7 +1141,7 @@ void Battleground::AddPlayer(Player* player)
 // this method adds player to his team's bg group, or sets his correct group if player is already in bg group
 void Battleground::AddOrSetPlayerToCorrectBgGroup(Player* player, uint32 team)
 {
-    uint64 playerGuid = player->GetGUID();
+    ObjectGuid playerGuid = player->GetGUID();
     Group* group = GetBgRaid(team);
     if (!group)                                      // first player joined
     {
@@ -1175,9 +1172,9 @@ void Battleground::AddOrSetPlayerToCorrectBgGroup(Player* player, uint32 team)
 // This method should be called when player logs into running battleground
 void Battleground::EventPlayerLoggedIn(Player* player)
 {
-    uint64 guid = player->GetGUID();
+    ObjectGuid guid = player->GetGUID();
     // player is correct pointer
-    for (std::deque<uint64>::iterator itr = m_OfflineQueue.begin(); itr != m_OfflineQueue.end(); ++itr)
+    for (GuidDeque::iterator itr = m_OfflineQueue.begin(); itr != m_OfflineQueue.end(); ++itr)
     {
         if (*itr == guid)
         {
@@ -1194,7 +1191,7 @@ void Battleground::EventPlayerLoggedIn(Player* player)
 // This method should be called when player logs out from running battleground
 void Battleground::EventPlayerLoggedOut(Player* player)
 {
-    uint64 guid = player->GetGUID();
+    ObjectGuid guid = player->GetGUID();
     if (!IsPlayerInBattleground(guid))  // Check if this player really is in battleground (might be a GM who teleported inside)
         return;
 
@@ -1358,7 +1355,7 @@ bool Battleground::UpdatePlayerScore(Player* player, uint32 type, uint32 value,
     return true;
 }
 
-void Battleground::AddPlayerToResurrectQueue(uint64 npc_guid, uint64 player_guid)
+void Battleground::AddPlayerToResurrectQueue(ObjectGuid npc_guid, ObjectGuid player_guid)
 {
     m_ReviveQueue[npc_guid].push_back(player_guid);
 
@@ -1369,15 +1366,15 @@ void Battleground::AddPlayerToResurrectQueue(uint64 npc_guid, uint64 player_guid
     player->CastSpell(player, SPELL_WAITING_FOR_RESURRECT, true);
 }
 
-void Battleground::RemovePlayerFromResurrectQueue(uint64 player_guid)
+void Battleground::RemovePlayerFromResurrectQueue(ObjectGuid player_guid)
 {
-    for (std::map<uint64, std::vector<uint64> >::iterator itr = m_ReviveQueue.begin(); itr != m_ReviveQueue.end(); ++itr)
+    for (std::map<ObjectGuid, GuidVector>::iterator itr = m_ReviveQueue.begin(); itr != m_ReviveQueue.end(); ++itr)
     {
-        for (std::vector<uint64>::iterator itr2 = (itr->second).begin(); itr2 != (itr->second).end(); ++itr2)
+        for (GuidVector::iterator itr2 = itr->second.begin(); itr2 != itr->second.end(); ++itr2)
         {
             if (*itr2 == player_guid)
             {
-                (itr->second).erase(itr2);
+                itr->second.erase(itr2);
                 if (Player* player = ObjectAccessor::FindPlayer(player_guid))
                     player->RemoveAurasDueToSpell(SPELL_WAITING_FOR_RESURRECT);
                 return;
@@ -1386,14 +1383,14 @@ void Battleground::RemovePlayerFromResurrectQueue(uint64 player_guid)
     }
 }
 
-void Battleground::RelocateDeadPlayers(uint64 queueIndex)
+void Battleground::RelocateDeadPlayers(ObjectGuid guideGuid)
 {
     // Those who are waiting to resurrect at this node are taken to the closest own node's graveyard
-    std::vector<uint64>& ghostList = m_ReviveQueue[queueIndex];
+    GuidVector& ghostList = m_ReviveQueue[guideGuid];
     if (!ghostList.empty())
     {
         WorldSafeLocsEntry const* closestGrave = NULL;
-        for (std::vector<uint64>::const_iterator itr = ghostList.begin(); itr != ghostList.end(); ++itr)
+        for (GuidVector::const_iterator itr = ghostList.begin(); itr != ghostList.end(); ++itr)
         {
             Player* player = ObjectAccessor::FindPlayer(*itr);
             if (!player)
@@ -1482,7 +1479,7 @@ void Battleground::DoorClose(uint32 type)
     }
     else
         TC_LOG_ERROR("bg.battleground", "Battleground::DoorClose: door gameobject (type: %u, GUID: %u) not found for BG (map: %u, instance id: %u)!",
-            type, GUID_LOPART(BgObjects[type]), m_MapId, m_InstanceID);
+            type, BgObjects[type].GetCounter(), m_MapId, m_InstanceID);
 }
 
 void Battleground::DoorOpen(uint32 type)
@@ -1494,7 +1491,7 @@ void Battleground::DoorOpen(uint32 type)
     }
     else
         TC_LOG_ERROR("bg.battleground", "Battleground::DoorOpen: door gameobject (type: %u, GUID: %u) not found for BG (map: %u, instance id: %u)!",
-            type, GUID_LOPART(BgObjects[type]), m_MapId, m_InstanceID);
+            type, BgObjects[type].GetCounter(), m_MapId, m_InstanceID);
 }
 
 GameObject* Battleground::GetBGObject(uint32 type, bool logError)
@@ -1504,10 +1501,10 @@ GameObject* Battleground::GetBGObject(uint32 type, bool logError)
     {
         if (logError)
             TC_LOG_ERROR("bg.battleground", "Battleground::GetBGObject: gameobject (type: %u, GUID: %u) not found for BG (map: %u, instance id: %u)!",
-                type, GUID_LOPART(BgObjects[type]), m_MapId, m_InstanceID);
+                type, BgObjects[type].GetCounter(), m_MapId, m_InstanceID);
         else
             TC_LOG_INFO("bg.battleground", "Battleground::GetBGObject: gameobject (type: %u, GUID: %u) not found for BG (map: %u, instance id: %u)!",
-                type, GUID_LOPART(BgObjects[type]), m_MapId, m_InstanceID);
+                type, BgObjects[type].GetCounter(), m_MapId, m_InstanceID);
     }
     return obj;
 }
@@ -1519,10 +1516,10 @@ Creature* Battleground::GetBGCreature(uint32 type, bool logError)
     {
         if (logError)
             TC_LOG_ERROR("bg.battleground", "Battleground::GetBGCreature: creature (type: %u, GUID: %u) not found for BG (map: %u, instance id: %u)!",
-                type, GUID_LOPART(BgCreatures[type]), m_MapId, m_InstanceID);
+                type, BgCreatures[type].GetCounter(), m_MapId, m_InstanceID);
         else
             TC_LOG_INFO("bg.battleground", "Battleground::GetBGCreature: creature (type: %u, GUID: %u) not found for BG (map: %u, instance id: %u)!",
-                type, GUID_LOPART(BgCreatures[type]), m_MapId, m_InstanceID);
+                type, BgCreatures[type].GetCounter(), m_MapId, m_InstanceID);
     }
     return creature;
 }
@@ -1599,13 +1596,13 @@ bool Battleground::DelCreature(uint32 type)
     if (Creature* creature = GetBgMap()->GetCreature(BgCreatures[type]))
     {
         creature->AddObjectToRemoveList();
-        BgCreatures[type] = 0;
+        BgCreatures[type].Clear();
         return true;
     }
 
     TC_LOG_ERROR("bg.battleground", "Battleground::DelCreature: creature (type: %u, GUID: %u) not found for BG (map: %u, instance id: %u)!",
-        type, GUID_LOPART(BgCreatures[type]), m_MapId, m_InstanceID);
-    BgCreatures[type] = 0;
+        type, BgCreatures[type].GetCounter(), m_MapId, m_InstanceID);
+    BgCreatures[type].Clear();
     return false;
 }
 
@@ -1618,12 +1615,12 @@ bool Battleground::DelObject(uint32 type)
     {
         obj->SetRespawnTime(0);                                 // not save respawn time
         obj->Delete();
-        BgObjects[type] = 0;
+        BgObjects[type].Clear();
         return true;
     }
     TC_LOG_ERROR("bg.battleground", "Battleground::DelObject: gameobject (type: %u, GUID: %u) not found for BG (map: %u, instance id: %u)!",
-        type, GUID_LOPART(BgObjects[type]), m_MapId, m_InstanceID);
-    BgObjects[type] = 0;
+        type, BgObjects[type].GetCounter(), m_MapId, m_InstanceID);
+    BgObjects[type].Clear();
     return false;
 }
 
@@ -1634,7 +1631,7 @@ bool Battleground::AddSpiritGuide(uint32 type, float x, float y, float z, float
     if (Creature* creature = AddCreature(entry, type, x, y, z, o, teamId))
     {
         creature->setDeathState(DEAD);
-        creature->SetUInt64Value(UNIT_FIELD_CHANNEL_OBJECT, creature->GetGUID());
+        creature->SetChannelObjectGuid(creature->GetGUID());
         // aura
         /// @todo Fix display here
         // creature->SetVisibleAura(0, SPELL_SPIRIT_HEAL_CHANNEL);
@@ -1657,7 +1654,7 @@ bool Battleground::AddSpiritGuide(uint32 type, Position const& pos, TeamId teamI
     return AddSpiritGuide(type, pos.GetPositionX(), pos.GetPositionY(), pos.GetPositionZ(), pos.GetOrientation(), teamId);
 }
 
-void Battleground::SendMessageToAll(int32 entry, ChatMsg type, Player const* source)
+void Battleground::SendMessageToAll(uint32 entry, ChatMsg type, Player const* source)
 {
     if (!entry)
         return;
@@ -1667,7 +1664,7 @@ void Battleground::SendMessageToAll(int32 entry, ChatMsg type, Player const* sou
     BroadcastWorker(bg_do);
 }
 
-void Battleground::PSendMessageToAll(int32 entry, ChatMsg type, Player const* source, ...)
+void Battleground::PSendMessageToAll(uint32 entry, ChatMsg type, Player const* source, ...)
 {
     if (!entry)
         return;
@@ -1682,7 +1679,7 @@ void Battleground::PSendMessageToAll(int32 entry, ChatMsg type, Player const* so
     va_end(ap);
 }
 
-void Battleground::SendWarningToAll(int32 entry, ...)
+void Battleground::SendWarningToAll(uint32 entry, ...)
 {
     if (!entry)
         return;
@@ -1708,7 +1705,7 @@ void Battleground::SendWarningToAll(int32 entry, ...)
         }
 }
 
-void Battleground::SendMessage2ToAll(int32 entry, ChatMsg type, Player const* source, int32 arg1, int32 arg2)
+void Battleground::SendMessage2ToAll(uint32 entry, ChatMsg type, Player const* source, uint32 arg1, uint32 arg2)
 {
     Trinity::Battleground2ChatBuilder bg_builder(type, entry, source, arg1, arg2);
     Trinity::LocalizedPacketDo<Trinity::Battleground2ChatBuilder> bg_do(bg_builder);
@@ -1722,17 +1719,10 @@ void Battleground::EndNow()
     SetRemainingTime(0);
 }
 
-// To be removed
-char const* Battleground::GetTrinityString(int32 entry)
-{
-    // FIXME: now we have different DBC locales and need localized message for each target client
-    return sObjectMgr->GetTrinityStringForDBCLocale(entry);
-}
-
 // IMPORTANT NOTICE:
 // buffs aren't spawned/despawned when players captures anything
 // buffs are in their positions when battleground starts
-void Battleground::HandleTriggerBuff(uint64 go_guid)
+void Battleground::HandleTriggerBuff(ObjectGuid go_guid)
 {
     GameObject* obj = GetBgMap()->GetGameObject(go_guid);
     if (!obj || obj->GetGoType() != GAMEOBJECT_TYPE_TRAP || !obj->isSpawned())
@@ -1745,7 +1735,7 @@ void Battleground::HandleTriggerBuff(uint64 go_guid)
     if (index < 0)
     {
         TC_LOG_ERROR("bg.battleground", "Battleground::HandleTriggerBuff: cannot find buff gameobject (GUID: %u, entry: %u, type: %u) in internal data for BG (map: %u, instance id: %u)!",
-            GUID_LOPART(go_guid), obj->GetEntry(), obj->GetGoType(), m_MapId, m_InstanceID);
+            go_guid.GetCounter(), obj->GetEntry(), obj->GetGoType(), m_MapId, m_InstanceID);
         return;
     }
 
@@ -1805,7 +1795,7 @@ void Battleground::HandleKillPlayer(Player* victim, Player* killer)
 
 // Return the player's team based on battlegroundplayer info
 // Used in same faction arena matches mainly
-uint32 Battleground::GetPlayerTeam(uint64 guid) const
+uint32 Battleground::GetPlayerTeam(ObjectGuid guid) const
 {
     BattlegroundPlayerMap::const_iterator itr = m_Players.find(guid);
     if (itr != m_Players.end())
@@ -1818,7 +1808,7 @@ uint32 Battleground::GetOtherTeam(uint32 teamId) const
     return teamId ? ((teamId == ALLIANCE) ? HORDE : ALLIANCE) : 0;
 }
 
-bool Battleground::IsPlayerInBattleground(uint64 guid) const
+bool Battleground::IsPlayerInBattleground(ObjectGuid guid) const
 {
     BattlegroundPlayerMap::const_iterator itr = m_Players.find(guid);
     if (itr != m_Players.end())
@@ -1863,13 +1853,13 @@ void Battleground::SetHoliday(bool is_holiday)
     m_HonorMode = is_holiday ? BG_HOLIDAY : BG_NORMAL;
 }
 
-int32 Battleground::GetObjectType(uint64 guid)
+int32 Battleground::GetObjectType(ObjectGuid guid)
 {
     for (uint32 i = 0; i < BgObjects.size(); ++i)
         if (BgObjects[i] == guid)
             return i;
     TC_LOG_ERROR("bg.battleground", "Battleground::GetObjectType: player used gameobject (GUID: %u) which is not in internal data for BG (map: %u, instance id: %u), cheating?",
-        GUID_LOPART(guid), m_MapId, m_InstanceID);
+        guid.GetCounter(), m_MapId, m_InstanceID);
     return -1;
 }
 
diff --git a/src/server/game/Battlegrounds/Battleground.h b/src/server/game/Battlegrounds/Battleground.h
index d445cee42ab..1c4b3de4f76 100644
--- a/src/server/game/Battlegrounds/Battleground.h
+++ b/src/server/game/Battlegrounds/Battleground.h
@@ -240,7 +240,7 @@ class Battleground
         /* Battleground */
         // Get methods:
         std::string const& GetName() const  { return m_Name; }
-        uint64 GetGUID() { return m_Guid; }
+        ObjectGuid GetGUID() { return m_Guid; }
         BattlegroundTypeId GetTypeID(bool GetRandom = false) const { return GetRandom ? m_RandomTypeID : m_TypeID; }
         BattlegroundBracketId GetBracketId() const { return m_BracketId; }
         uint32 GetInstanceID() const        { return m_InstanceID; }
@@ -266,7 +266,7 @@ class Battleground
         bool IsRandom() const { return m_IsRandom; }
 
         // Set methods:
-        void SetGuid(uint64 newGuid)        { m_Guid = newGuid; }
+        void SetGuid(ObjectGuid newGuid)        { m_Guid = newGuid; }
         void SetName(std::string const& name) { m_Name = name; }
         void SetTypeID(BattlegroundTypeId TypeID) { m_TypeID = TypeID; }
         void SetRandomTypeID(BattlegroundTypeId TypeID) { m_RandomTypeID = TypeID; }
@@ -308,7 +308,7 @@ class Battleground
         bool isBattleground() const { return !m_IsArena; }
         bool isRated() const        { return m_IsRated; }
 
-        typedef std::map<uint64, BattlegroundPlayer> BattlegroundPlayerMap;
+        typedef std::map<ObjectGuid, BattlegroundPlayer> BattlegroundPlayerMap;
         BattlegroundPlayerMap const& GetPlayers() const { return m_Players; }
         uint32 GetPlayersSize() const { return m_Players.size(); }
 
@@ -317,11 +317,11 @@ class Battleground
 
         uint32 GetReviveQueueSize() const { return m_ReviveQueue.size(); }
 
-        void AddPlayerToResurrectQueue(uint64 npc_guid, uint64 player_guid);
-        void RemovePlayerFromResurrectQueue(uint64 player_guid);
+        void AddPlayerToResurrectQueue(ObjectGuid npc_guid, ObjectGuid player_guid);
+        void RemovePlayerFromResurrectQueue(ObjectGuid player_guid);
 
         /// Relocate all players in ReviveQueue to the closest graveyard
-        void RelocateDeadPlayers(uint64 queueIndex);
+        void RelocateDeadPlayers(ObjectGuid guideGuid);
 
         void StartBattleground();
 
@@ -365,12 +365,12 @@ class Battleground
         virtual void EndBattleground(uint32 winner);
         void BlockMovement(Player* player);
 
-        void SendWarningToAll(int32 entry, ...);
-        void SendMessageToAll(int32 entry, ChatMsg type, Player const* source = NULL);
-        void PSendMessageToAll(int32 entry, ChatMsg type, Player const* source, ...);
+        void SendWarningToAll(uint32 entry, ...);
+        void SendMessageToAll(uint32 entry, ChatMsg type, Player const* source = NULL);
+        void PSendMessageToAll(uint32 entry, ChatMsg type, Player const* source, ...);
 
         // specialized version with 2 string id args
-        void SendMessage2ToAll(int32 entry, ChatMsg type, Player const* source, int32 strId1 = 0, int32 strId2 = 0);
+        void SendMessage2ToAll(uint32 entry, ChatMsg type, Player const* source, uint32 strId1 = 0, uint32 strId2 = 0);
 
         // Raid Group
         Group* GetBgRaid(uint32 TeamID) const { return TeamID == ALLIANCE ? m_BgRaids[TEAM_ALLIANCE] : m_BgRaids[TEAM_HORDE]; }
@@ -414,7 +414,7 @@ class Battleground
         virtual void ProcessEvent(WorldObject* /*obj*/, uint32 /*eventId*/, WorldObject* /*invoker*/ = NULL) { }
 
         // this function can be used by spell to interact with the BG map
-        virtual void DoAction(uint32 /*action*/, uint64 /*var*/) { }
+        virtual void DoAction(uint32 /*action*/, ObjectGuid /*var*/) { }
 
         virtual void HandlePlayerResurrect(Player* /*player*/) { }
 
@@ -425,17 +425,15 @@ class Battleground
 
         void AddOrSetPlayerToCorrectBgGroup(Player* player, uint32 team);
 
-        virtual void RemovePlayerAtLeave(uint64 guid, bool Transport, bool SendPacket);
+        virtual void RemovePlayerAtLeave(ObjectGuid guid, bool Transport, bool SendPacket);
                                                             // can be extended in in BG subclass
 
-        void HandleTriggerBuff(uint64 go_guid);
+        void HandleTriggerBuff(ObjectGuid go_guid);
         void SetHoliday(bool is_holiday);
 
         /// @todo make this protected:
-        typedef std::vector<uint64> BGObjects;
-        typedef std::vector<uint64> BGCreatures;
-        BGObjects BgObjects;
-        BGCreatures BgCreatures;
+        GuidVector BgObjects;
+        GuidVector BgCreatures;
         void SpawnBGObject(uint32 type, uint32 respawntime);
         virtual bool AddObject(uint32 type, uint32 entry, float x, float y, float z, float o, float rotation0, float rotation1, float rotation2, float rotation3, uint32 respawnTime = 0);
         bool AddObject(uint32 type, uint32 entry, Position const& pos, float rotation0, float rotation1, float rotation2, float rotation3, uint32 respawnTime = 0);
@@ -445,19 +443,17 @@ class Battleground
         bool DelObject(uint32 type);
         virtual bool AddSpiritGuide(uint32 type, float x, float y, float z, float o, TeamId teamId = TEAM_NEUTRAL);
         bool AddSpiritGuide(uint32 type, Position const& pos, TeamId teamId = TEAM_NEUTRAL);
-        int32 GetObjectType(uint64 guid);
+        int32 GetObjectType(ObjectGuid guid);
 
         void DoorOpen(uint32 type);
         void DoorClose(uint32 type);
-        //to be removed
-        const char* GetTrinityString(int32 entry);
 
         virtual bool HandlePlayerUnderMap(Player* /*player*/) { return false; }
 
         // since arenas can be AvA or Hvh, we have to get the "temporary" team of a player
-        uint32 GetPlayerTeam(uint64 guid) const;
+        uint32 GetPlayerTeam(ObjectGuid guid) const;
         uint32 GetOtherTeam(uint32 teamId) const;
-        bool IsPlayerInBattleground(uint64 guid) const;
+        bool IsPlayerInBattleground(ObjectGuid guid) const;
 
         bool ToBeDeleted() const { return m_SetDeleteThis; }
         void SetDeleteThis() { m_SetDeleteThis = true; }
@@ -465,8 +461,8 @@ class Battleground
         void RewardXPAtKill(Player* killer, Player* victim);
         bool CanAwardArenaPoints() const { return m_LevelMin >= BG_AWARD_ARENA_POINTS_MIN_LEVEL; }
 
-        virtual uint64 GetFlagPickerGUID(int32 /*team*/ = -1) const { return 0; }
-        virtual void SetDroppedFlagGUID(uint64 /*guid*/, int32 /*team*/ = -1) { }
+        virtual ObjectGuid GetFlagPickerGUID(int32 /*team*/ = -1) const { return ObjectGuid::Empty; }
+        virtual void SetDroppedFlagGUID(ObjectGuid /*guid*/, int32 /*team*/ = -1) { }
         virtual void HandleQuestComplete(uint32 /*questid*/, Player* /*player*/) { }
         virtual bool CanActivateGO(int32 /*entry*/, uint32 /*team*/) const { return true; }
         virtual bool IsSpellAllowed(uint32 /*spellId*/, Player const* /*player*/) const { return true; }
@@ -482,7 +478,7 @@ class Battleground
         void EndNow();
         void PlayerAddedToBGCheckIfBGIsRunning(Player* player);
 
-        Player* _GetPlayer(uint64 guid, bool offlineRemove, const char* context) const;
+        Player* _GetPlayer(ObjectGuid guid, bool offlineRemove, const char* context) const;
         Player* _GetPlayer(BattlegroundPlayerMap::iterator itr, const char* context) { return _GetPlayer(itr->first, itr->second.OfflineRemoveTime != 0, context); }
         Player* _GetPlayer(BattlegroundPlayerMap::const_iterator itr, const char* context) const { return _GetPlayer(itr->first, itr->second.OfflineRemoveTime != 0, context); }
         Player* _GetPlayerForTeam(uint32 teamId, BattlegroundPlayerMap::const_iterator itr, const char* context) const;
@@ -497,12 +493,12 @@ class Battleground
         // Scorekeeping
         BattlegroundScoreMap PlayerScores;                // Player scores
         // must be implemented in BG subclass
-        virtual void RemovePlayer(Player* /*player*/, uint64 /*guid*/, uint32 /*team*/) { }
+        virtual void RemovePlayer(Player* /*player*/, ObjectGuid /*guid*/, uint32 /*team*/) { }
 
         // Player lists, those need to be accessible by inherited classes
-        BattlegroundPlayerMap  m_Players;
+        BattlegroundPlayerMap m_Players;
         // Spirit Guide guid + Player list GUIDS
-        std::map<uint64, std::vector<uint64> >  m_ReviveQueue;
+        std::map<ObjectGuid, GuidVector> m_ReviveQueue;
 
         // these are important variables used for starting messages
         uint8 m_Events;
@@ -542,7 +538,7 @@ class Battleground
         bool   m_PrematureCountDown;
         uint32 m_PrematureCountDownTimer;
         std::string m_Name;
-        uint64 m_Guid;
+        ObjectGuid m_Guid;
 
         /* Pre- and post-update hooks */
 
@@ -575,8 +571,8 @@ class Battleground
         virtual void PostUpdateImpl(uint32 /* diff */) { }
 
         // Player lists
-        std::vector<uint64> m_ResurrectQueue;               // Player GUID
-        std::deque<uint64> m_OfflineQueue;                  // Player GUID
+        GuidVector m_ResurrectQueue;                        // Player GUID
+        GuidDeque m_OfflineQueue;                           // Player GUID
 
         // Invited counters are useful for player invitation to BG - do not allow, if BG is started to one faction to have 2 more players than another faction
         // Invited counters will be changed only when removing already invited player from queue, removing player from battleground and inviting player to BG
diff --git a/src/server/game/Battlegrounds/BattlegroundMgr.cpp b/src/server/game/Battlegrounds/BattlegroundMgr.cpp
index a0fd1f988a7..e2c1c931b18 100644
--- a/src/server/game/Battlegrounds/BattlegroundMgr.cpp
+++ b/src/server/game/Battlegrounds/BattlegroundMgr.cpp
@@ -359,7 +359,7 @@ void BattlegroundMgr::BuildStatusFailedPacket(WorldPacket* data, Battleground* b
 {
     ObjectGuid guidBytes1 = player->GetGUID(); // player who caused the error
     ObjectGuid guidBytes2 = bg->GetGUID();
-    ObjectGuid unkGuid3 = 0;
+    ObjectGuid unkGuid3;
 
     data->Initialize(SMSG_BATTLEFIELD_STATUS_FAILED);
 
@@ -440,54 +440,50 @@ void BattlegroundMgr::BuildPlaySoundPacket(WorldPacket* data, uint32 soundid)
     *data << uint64(0);
 }
 
-void BattlegroundMgr::BuildPlayerLeftBattlegroundPacket(WorldPacket* data, uint64 guid)
+void BattlegroundMgr::BuildPlayerLeftBattlegroundPacket(WorldPacket* data, ObjectGuid guid)
 {
-    ObjectGuid guidBytes = guid;
-
     data->Initialize(SMSG_BATTLEGROUND_PLAYER_LEFT, 8);
 
-    data->WriteBit(guidBytes[7]);
-    data->WriteBit(guidBytes[6]);
-    data->WriteBit(guidBytes[2]);
-    data->WriteBit(guidBytes[4]);
-    data->WriteBit(guidBytes[5]);
-    data->WriteBit(guidBytes[1]);
-    data->WriteBit(guidBytes[3]);
-    data->WriteBit(guidBytes[0]);
-
-    data->WriteByteSeq(guidBytes[4]);
-    data->WriteByteSeq(guidBytes[2]);
-    data->WriteByteSeq(guidBytes[5]);
-    data->WriteByteSeq(guidBytes[7]);
-    data->WriteByteSeq(guidBytes[0]);
-    data->WriteByteSeq(guidBytes[6]);
-    data->WriteByteSeq(guidBytes[1]);
-    data->WriteByteSeq(guidBytes[3]);
+    data->WriteBit(guid[7]);
+    data->WriteBit(guid[6]);
+    data->WriteBit(guid[2]);
+    data->WriteBit(guid[4]);
+    data->WriteBit(guid[5]);
+    data->WriteBit(guid[1]);
+    data->WriteBit(guid[3]);
+    data->WriteBit(guid[0]);
+
+    data->WriteByteSeq(guid[4]);
+    data->WriteByteSeq(guid[2]);
+    data->WriteByteSeq(guid[5]);
+    data->WriteByteSeq(guid[7]);
+    data->WriteByteSeq(guid[0]);
+    data->WriteByteSeq(guid[6]);
+    data->WriteByteSeq(guid[1]);
+    data->WriteByteSeq(guid[3]);
 }
 
-void BattlegroundMgr::BuildPlayerJoinedBattlegroundPacket(WorldPacket* data, uint64 guid)
+void BattlegroundMgr::BuildPlayerJoinedBattlegroundPacket(WorldPacket* data, ObjectGuid guid)
 {
-    ObjectGuid guidBytes = guid;
-
     data->Initialize(SMSG_BATTLEGROUND_PLAYER_JOINED, 8);
 
-    data->WriteBit(guidBytes[0]);
-    data->WriteBit(guidBytes[4]);
-    data->WriteBit(guidBytes[3]);
-    data->WriteBit(guidBytes[5]);
-    data->WriteBit(guidBytes[7]);
-    data->WriteBit(guidBytes[6]);
-    data->WriteBit(guidBytes[2]);
-    data->WriteBit(guidBytes[1]);
-
-    data->WriteByteSeq(guidBytes[1]);
-    data->WriteByteSeq(guidBytes[5]);
-    data->WriteByteSeq(guidBytes[3]);
-    data->WriteByteSeq(guidBytes[2]);
-    data->WriteByteSeq(guidBytes[0]);
-    data->WriteByteSeq(guidBytes[7]);
-    data->WriteByteSeq(guidBytes[4]);
-    data->WriteByteSeq(guidBytes[6]);
+    data->WriteBit(guid[0]);
+    data->WriteBit(guid[4]);
+    data->WriteBit(guid[3]);
+    data->WriteBit(guid[5]);
+    data->WriteBit(guid[7]);
+    data->WriteBit(guid[6]);
+    data->WriteBit(guid[2]);
+    data->WriteBit(guid[1]);
+
+    data->WriteByteSeq(guid[1]);
+    data->WriteByteSeq(guid[5]);
+    data->WriteByteSeq(guid[3]);
+    data->WriteByteSeq(guid[2]);
+    data->WriteByteSeq(guid[0]);
+    data->WriteByteSeq(guid[7]);
+    data->WriteByteSeq(guid[4]);
+    data->WriteByteSeq(guid[6]);
 }
 
 Battleground* BattlegroundMgr::GetBattlegroundThroughClientInstance(uint32 instanceId, BattlegroundTypeId bgTypeId)
@@ -656,7 +652,7 @@ Battleground* BattlegroundMgr::CreateNewBattleground(BattlegroundTypeId original
     bg->SetRandomTypeID(bgTypeId);
     bg->SetRated(isRated);
     bg->SetRandom(isRandom);
-    bg->SetGuid(MAKE_NEW_GUID(bgTypeId, 0, HIGHGUID_BATTLEGROUND));
+    bg->SetGuid(ObjectGuid(HIGHGUID_BATTLEGROUND, uint32(bgTypeId)));
 
     // Set up correct min/max player counts for scoreboards
     if (bg->isArena())
@@ -759,7 +755,7 @@ bool BattlegroundMgr::CreateBattleground(BattlegroundTemplate const* bgTemplate)
     bg->SetStartMaxDist(bgTemplate->MaxStartDistSq);
     bg->SetLevelRange(bgTemplate->MinLevel, bgTemplate->MaxLevel);
     bg->SetScriptId(bgTemplate->ScriptId);
-    bg->SetGuid(MAKE_NEW_GUID(bgTemplate->Id, 0, HIGHGUID_BATTLEGROUND));
+    bg->SetGuid(ObjectGuid(HIGHGUID_BATTLEGROUND, uint32(bgTemplate->Id)));
 
     AddBattleground(bg);
 
@@ -866,7 +862,7 @@ void BattlegroundMgr::LoadBattlegroundTemplates()
     TC_LOG_INFO("server.loading", ">> Loaded %u battlegrounds in %u ms", count, GetMSTimeDiffToNow(oldMSTime));
 }
 
-void BattlegroundMgr::BuildBattlegroundListPacket(WorldPacket* data, uint64 guid, Player* player, BattlegroundTypeId bgTypeId)
+void BattlegroundMgr::BuildBattlegroundListPacket(WorldPacket* data, ObjectGuid guid, Player* player, BattlegroundTypeId bgTypeId)
 {
     if (!player)
         return;
@@ -879,8 +875,6 @@ void BattlegroundMgr::BuildBattlegroundListPacket(WorldPacket* data, uint64 guid
     uint32 winnerHonor = (player->GetRandomWinner() ? sWorld->getIntConfig(CONFIG_BG_REWARD_WINNER_HONOR_FIRST) : sWorld->getIntConfig(CONFIG_BG_REWARD_WINNER_HONOR_LAST)) / CURRENCY_PRECISION;
     uint32 loserHonor = (!player->GetRandomWinner() ? sWorld->getIntConfig(CONFIG_BG_REWARD_LOSER_HONOR_FIRST) : sWorld->getIntConfig(CONFIG_BG_REWARD_LOSER_HONOR_LAST)) / CURRENCY_PRECISION;
 
-    ObjectGuid guidBytes = guid;
-
     data->Initialize(SMSG_BATTLEFIELD_LIST);
     *data << uint32(winnerConquest)             // Winner Conquest Reward or Random Winner Conquest Reward
           << uint32(winnerConquest)             // Winner Conquest Reward or Random Winner Conquest Reward
@@ -892,29 +886,29 @@ void BattlegroundMgr::BuildBattlegroundListPacket(WorldPacket* data, uint64 guid
           << uint8(bgTemplate->MaxLevel)        // max level
           << uint8(bgTemplate->MinLevel);       // min level
 
-    data->WriteBit(guidBytes[0]);
-    data->WriteBit(guidBytes[1]);
-    data->WriteBit(guidBytes[7]);
+    data->WriteBit(guid[0]);
+    data->WriteBit(guid[1]);
+    data->WriteBit(guid[7]);
     data->WriteBit(0);                                      // unk
     data->WriteBit(0);                                      // unk
 
     size_t count_pos = data->bitwpos();
     data->WriteBits(0, 24);                                 // placeholder
 
-    data->WriteBit(guidBytes[6]);
-    data->WriteBit(guidBytes[4]);
-    data->WriteBit(guidBytes[2]);
-    data->WriteBit(guidBytes[3]);
+    data->WriteBit(guid[6]);
+    data->WriteBit(guid[4]);
+    data->WriteBit(guid[2]);
+    data->WriteBit(guid[3]);
     data->WriteBit(0);                                      // unk
-    data->WriteBit(guidBytes[5]);
+    data->WriteBit(guid[5]);
     data->WriteBit(0);                                      // unk
 
     data->FlushBits();
 
-    data->WriteByteSeq(guidBytes[6]);
-    data->WriteByteSeq(guidBytes[1]);
-    data->WriteByteSeq(guidBytes[7]);
-    data->WriteByteSeq(guidBytes[5]);
+    data->WriteByteSeq(guid[6]);
+    data->WriteByteSeq(guid[1]);
+    data->WriteByteSeq(guid[7]);
+    data->WriteByteSeq(guid[5]);
 
     BattlegroundDataContainer::iterator it = bgDataStore.find(bgTypeId);
     if (it != bgDataStore.end())
@@ -932,10 +926,10 @@ void BattlegroundMgr::BuildBattlegroundListPacket(WorldPacket* data, uint64 guid
         }
     }
 
-    data->WriteByteSeq(guidBytes[0]);
-    data->WriteByteSeq(guidBytes[2]);
-    data->WriteByteSeq(guidBytes[4]);
-    data->WriteByteSeq(guidBytes[3]);
+    data->WriteByteSeq(guid[0]);
+    data->WriteByteSeq(guid[2]);
+    data->WriteByteSeq(guid[4]);
+    data->WriteByteSeq(guid[3]);
 }
 
 void BattlegroundMgr::SendToBattleground(Player* player, uint32 instanceId, BattlegroundTypeId bgTypeId)
@@ -953,7 +947,7 @@ void BattlegroundMgr::SendToBattleground(Player* player, uint32 instanceId, Batt
         TC_LOG_ERROR("bg.battleground", "BattlegroundMgr::SendToBattleground: Instance %u (bgType %u) not found while trying to teleport player %s", instanceId, bgTypeId, player->GetName().c_str());
 }
 
-void BattlegroundMgr::SendAreaSpiritHealerQueryOpcode(Player* player, Battleground* bg, uint64 guid)
+void BattlegroundMgr::SendAreaSpiritHealerQueryOpcode(Player* player, Battleground* bg, ObjectGuid guid)
 {
     WorldPacket data(SMSG_AREA_SPIRIT_HEALER_TIME, 12);
     uint32 time_ = 30000 - bg->GetLastResurrectTime();      // resurrect every 30 seconds
diff --git a/src/server/game/Battlegrounds/BattlegroundMgr.h b/src/server/game/Battlegrounds/BattlegroundMgr.h
index e6f8eee354e..23689c03fba 100644
--- a/src/server/game/Battlegrounds/BattlegroundMgr.h
+++ b/src/server/game/Battlegrounds/BattlegroundMgr.h
@@ -70,14 +70,14 @@ class BattlegroundMgr
         void Update(uint32 diff);
 
         /* Packet Building */
-        void BuildPlayerJoinedBattlegroundPacket(WorldPacket* data, uint64 guid);
-        void BuildPlayerLeftBattlegroundPacket(WorldPacket* data, uint64 guid);
-        void BuildBattlegroundListPacket(WorldPacket* data, uint64 guid, Player* player, BattlegroundTypeId bgTypeId);
+        void BuildPlayerJoinedBattlegroundPacket(WorldPacket* data, ObjectGuid guid);
+        void BuildPlayerLeftBattlegroundPacket(WorldPacket* data, ObjectGuid guid);
+        void BuildBattlegroundListPacket(WorldPacket* data, ObjectGuid guid, Player* player, BattlegroundTypeId bgTypeId);
         void BuildStatusFailedPacket(WorldPacket* data, Battleground* bg, Player* pPlayer, uint8 QueueSlot, GroupJoinBattlegroundResult result);
         void BuildUpdateWorldStatePacket(WorldPacket* data, uint32 field, uint32 value);
         void BuildBattlegroundStatusPacket(WorldPacket* data, Battleground* bg, Player* player, uint8 queueSlot, uint8 statusId, uint32 time1, uint32 time2, uint8 arenaType);
         void BuildPlaySoundPacket(WorldPacket* data, uint32 soundId);
-        void SendAreaSpiritHealerQueryOpcode(Player* player, Battleground* bg, uint64 guid);
+        void SendAreaSpiritHealerQueryOpcode(Player* player, Battleground* bg, ObjectGuid guid);
 
         /* Battlegrounds */
         Battleground* GetBattlegroundThroughClientInstance(uint32 instanceId, BattlegroundTypeId bgTypeId);
diff --git a/src/server/game/Battlegrounds/BattlegroundQueue.cpp b/src/server/game/Battlegrounds/BattlegroundQueue.cpp
index 81844cb8b8a..375c896fd39 100644
--- a/src/server/game/Battlegrounds/BattlegroundQueue.cpp
+++ b/src/server/game/Battlegrounds/BattlegroundQueue.cpp
@@ -281,7 +281,7 @@ uint32 BattlegroundQueue::GetAverageQueueWaitTime(GroupQueueInfo* ginfo, Battleg
 }
 
 //remove player from queue and from group info, if group info is empty then remove it too
-void BattlegroundQueue::RemovePlayer(uint64 guid, bool decreaseInvitedCount)
+void BattlegroundQueue::RemovePlayer(ObjectGuid guid, bool decreaseInvitedCount)
 {
     int32 bracket_id = -1;                                     // signed for proper for-loop finish
     QueuedPlayersMap::iterator itr;
@@ -293,7 +293,7 @@ void BattlegroundQueue::RemovePlayer(uint64 guid, bool decreaseInvitedCount)
         std::string playerName = "Unknown";
         if (Player* player = ObjectAccessor::FindPlayer(guid))
             playerName = player->GetName();
-        TC_LOG_ERROR("bg.battleground", "BattlegroundQueue: couldn't find player %s (GUID: %u)", playerName.c_str(), GUID_LOPART(guid));
+        TC_LOG_ERROR("bg.battleground", "BattlegroundQueue: couldn't find player %s (GUID: %u)", playerName.c_str(), guid.GetCounter());
         return;
     }
 
@@ -328,10 +328,10 @@ void BattlegroundQueue::RemovePlayer(uint64 guid, bool decreaseInvitedCount)
     //player can't be in queue without group, but just in case
     if (bracket_id == -1)
     {
-        TC_LOG_ERROR("bg.battleground", "BattlegroundQueue: ERROR Cannot find groupinfo for player GUID: %u", GUID_LOPART(guid));
+        TC_LOG_ERROR("bg.battleground", "BattlegroundQueue: ERROR Cannot find groupinfo for player GUID: %u", guid.GetCounter());
         return;
     }
-    TC_LOG_DEBUG("bg.battleground", "BattlegroundQueue: Removing player GUID %u, from bracket_id %u", GUID_LOPART(guid), (uint32)bracket_id);
+    TC_LOG_DEBUG("bg.battleground", "BattlegroundQueue: Removing player GUID %u, from bracket_id %u", guid.GetCounter(), (uint32)bracket_id);
 
     // ALL variables are correctly set
     // We can ignore leveling up in queue - it should not cause crash
@@ -339,7 +339,7 @@ void BattlegroundQueue::RemovePlayer(uint64 guid, bool decreaseInvitedCount)
     // if only one player there, remove group
 
     // remove player queue info from group queue info
-    std::map<uint64, PlayerQueueInfo*>::iterator pitr = group->Players.find(guid);
+    std::map<ObjectGuid, PlayerQueueInfo*>::iterator pitr = group->Players.find(guid);
     if (pitr != group->Players.end())
         group->Players.erase(pitr);
 
@@ -361,7 +361,7 @@ void BattlegroundQueue::RemovePlayer(uint64 guid, bool decreaseInvitedCount)
     {
         if (ArenaTeam* at = sArenaTeamMgr->GetArenaTeamById(group->ArenaTeamId))
         {
-            TC_LOG_DEBUG("bg.battleground", "UPDATING memberLost's personal arena rating for %u by opponents rating: %u", GUID_LOPART(guid), group->OpponentsTeamRating);
+            TC_LOG_DEBUG("bg.battleground", "UPDATING memberLost's personal arena rating for %u by opponents rating: %u", guid.GetCounter(), group->OpponentsTeamRating);
             if (Player* player = ObjectAccessor::FindPlayer(guid))
                 at->MemberLost(player, group->OpponentsMatchmakerRating);
             else
@@ -403,7 +403,7 @@ void BattlegroundQueue::RemovePlayer(uint64 guid, bool decreaseInvitedCount)
 }
 
 //returns true when player pl_guid is in queue and is invited to bgInstanceGuid
-bool BattlegroundQueue::IsPlayerInvited(uint64 pl_guid, const uint32 bgInstanceGuid, const uint32 removeTime)
+bool BattlegroundQueue::IsPlayerInvited(ObjectGuid pl_guid, const uint32 bgInstanceGuid, const uint32 removeTime)
 {
     QueuedPlayersMap::const_iterator qItr = m_QueuedPlayers.find(pl_guid);
     return (qItr != m_QueuedPlayers.end()
@@ -411,7 +411,7 @@ bool BattlegroundQueue::IsPlayerInvited(uint64 pl_guid, const uint32 bgInstanceG
         && qItr->second.GroupInfo->RemoveInviteTime == removeTime);
 }
 
-bool BattlegroundQueue::GetPlayerGroupInfoData(uint64 guid, GroupQueueInfo* ginfo)
+bool BattlegroundQueue::GetPlayerGroupInfoData(ObjectGuid guid, GroupQueueInfo* ginfo)
 {
     QueuedPlayersMap::const_iterator qItr = m_QueuedPlayers.find(guid);
     if (qItr == m_QueuedPlayers.end())
@@ -447,7 +447,7 @@ bool BattlegroundQueue::InviteGroupToBG(GroupQueueInfo* ginfo, Battleground* bg,
         ginfo->RemoveInviteTime = getMSTime() + INVITE_ACCEPT_WAIT_TIME;
 
         // loop through the players
-        for (std::map<uint64, PlayerQueueInfo*>::iterator itr = ginfo->Players.begin(); itr != ginfo->Players.end(); ++itr)
+        for (std::map<ObjectGuid, PlayerQueueInfo*>::iterator itr = ginfo->Players.begin(); itr != ginfo->Players.end(); ++itr)
         {
             // get the player
             Player* player = ObjectAccessor::FindPlayer(itr->first);
diff --git a/src/server/game/Battlegrounds/BattlegroundQueue.h b/src/server/game/Battlegrounds/BattlegroundQueue.h
index 879fb7eabbd..810e78658c3 100644
--- a/src/server/game/Battlegrounds/BattlegroundQueue.h
+++ b/src/server/game/Battlegrounds/BattlegroundQueue.h
@@ -40,7 +40,7 @@ struct PlayerQueueInfo                                      // stores informatio
 
 struct GroupQueueInfo                                       // stores information about the group in queue (also used when joined as solo!)
 {
-    std::map<uint64, PlayerQueueInfo*> Players;             // player queue info map
+    std::map<ObjectGuid, PlayerQueueInfo*> Players;         // player queue info map
     uint32  Team;                                           // Player team (ALLIANCE/HORDE)
     BattlegroundTypeId BgTypeId;                            // battleground type id
     bool    IsRated;                                        // rated
@@ -79,13 +79,13 @@ class BattlegroundQueue
         bool CheckNormalMatch(Battleground* bg_template, BattlegroundBracketId bracket_id, uint32 minPlayers, uint32 maxPlayers);
         bool CheckSkirmishForSameFaction(BattlegroundBracketId bracket_id, uint32 minPlayersPerTeam);
         GroupQueueInfo* AddGroup(Player* leader, Group* group, BattlegroundTypeId bgTypeId, PvPDifficultyEntry const*  bracketEntry, uint8 ArenaType, bool isRated, bool isPremade, uint32 ArenaRating, uint32 MatchmakerRating, uint32 ArenaTeamId = 0);
-        void RemovePlayer(uint64 guid, bool decreaseInvitedCount);
-        bool IsPlayerInvited(uint64 pl_guid, const uint32 bgInstanceGuid, const uint32 removeTime);
-        bool GetPlayerGroupInfoData(uint64 guid, GroupQueueInfo* ginfo);
+        void RemovePlayer(ObjectGuid guid, bool decreaseInvitedCount);
+        bool IsPlayerInvited(ObjectGuid pl_guid, const uint32 bgInstanceGuid, const uint32 removeTime);
+        bool GetPlayerGroupInfoData(ObjectGuid guid, GroupQueueInfo* ginfo);
         void PlayerInvitedToBGUpdateAverageWaitTime(GroupQueueInfo* ginfo, BattlegroundBracketId bracket_id);
         uint32 GetAverageQueueWaitTime(GroupQueueInfo* ginfo, BattlegroundBracketId bracket_id) const;
 
-        typedef std::map<uint64, PlayerQueueInfo> QueuedPlayersMap;
+        typedef std::map<ObjectGuid, PlayerQueueInfo> QueuedPlayersMap;
         QueuedPlayersMap m_QueuedPlayers;
 
         //do NOT use deque because deque.erase() invalidates ALL iterators
@@ -138,7 +138,7 @@ class BattlegroundQueue
 class BGQueueInviteEvent : public BasicEvent
 {
     public:
-        BGQueueInviteEvent(uint64 pl_guid, uint32 BgInstanceGUID, BattlegroundTypeId BgTypeId, uint8 arenaType, uint32 removeTime) :
+        BGQueueInviteEvent(ObjectGuid pl_guid, uint32 BgInstanceGUID, BattlegroundTypeId BgTypeId, uint8 arenaType, uint32 removeTime) :
           m_PlayerGuid(pl_guid), m_BgInstanceGUID(BgInstanceGUID), m_BgTypeId(BgTypeId), m_ArenaType(arenaType), m_RemoveTime(removeTime)
           { }
         virtual ~BGQueueInviteEvent() { }
@@ -146,7 +146,7 @@ class BGQueueInviteEvent : public BasicEvent
         virtual bool Execute(uint64 e_time, uint32 p_time) override;
         virtual void Abort(uint64 e_time) override;
     private:
-        uint64 m_PlayerGuid;
+        ObjectGuid m_PlayerGuid;
         uint32 m_BgInstanceGUID;
         BattlegroundTypeId m_BgTypeId;
         uint8  m_ArenaType;
@@ -161,7 +161,7 @@ class BGQueueInviteEvent : public BasicEvent
 class BGQueueRemoveEvent : public BasicEvent
 {
     public:
-        BGQueueRemoveEvent(uint64 pl_guid, uint32 bgInstanceGUID, BattlegroundTypeId BgTypeId, uint8 arenaType, BattlegroundQueueTypeId bgQueueTypeId, uint32 removeTime)
+        BGQueueRemoveEvent(ObjectGuid pl_guid, uint32 bgInstanceGUID, BattlegroundTypeId BgTypeId, uint8 arenaType, BattlegroundQueueTypeId bgQueueTypeId, uint32 removeTime)
             : m_PlayerGuid(pl_guid), m_BgInstanceGUID(bgInstanceGUID), m_ArenaType(arenaType), m_RemoveTime(removeTime), m_BgTypeId(BgTypeId), m_BgQueueTypeId(bgQueueTypeId)
         { }
 
@@ -170,7 +170,7 @@ class BGQueueRemoveEvent : public BasicEvent
         virtual bool Execute(uint64 e_time, uint32 p_time) override;
         virtual void Abort(uint64 e_time) override;
     private:
-        uint64 m_PlayerGuid;
+        ObjectGuid m_PlayerGuid;
         uint32 m_BgInstanceGUID;
         uint8 m_ArenaType;
         uint32 m_RemoveTime;
diff --git a/src/server/game/Battlegrounds/BattlegroundScore.h b/src/server/game/Battlegrounds/BattlegroundScore.h
index 6cb0aaadb73..2bca2788c61 100644
--- a/src/server/game/Battlegrounds/BattlegroundScore.h
+++ b/src/server/game/Battlegrounds/BattlegroundScore.h
@@ -57,7 +57,7 @@ struct BattlegroundScore
     friend class Battleground;
 
     protected:
-        BattlegroundScore(uint64 playerGuid, uint32 team) : PlayerGuid(playerGuid), TeamId(team == ALLIANCE ? 1 : 0),
+        BattlegroundScore(ObjectGuid playerGuid, uint32 team) : PlayerGuid(playerGuid), TeamId(team == ALLIANCE ? 1 : 0),
             KillingBlows(0), Deaths(0), HonorableKills(0), BonusHonor(0), DamageDone(0), HealingDone(0) { }
 
         virtual ~BattlegroundScore() { }
diff --git a/src/server/game/Battlegrounds/Zones/BattlegroundAB.cpp b/src/server/game/Battlegrounds/Zones/BattlegroundAB.cpp
index 91174682218..a106fb6046b 100644
--- a/src/server/game/Battlegrounds/Zones/BattlegroundAB.cpp
+++ b/src/server/game/Battlegrounds/Zones/BattlegroundAB.cpp
@@ -227,7 +227,7 @@ void BattlegroundAB::AddPlayer(Player* player)
     PlayerScores[player->GetGUIDLow()] = new BattlegroundABScore(player->GetGUID(), player->GetBGTeam());
 }
 
-void BattlegroundAB::RemovePlayer(Player* /*player*/, uint64 /*guid*/, uint32 /*team*/)
+void BattlegroundAB::RemovePlayer(Player* /*player*/, ObjectGuid /*guid*/, uint32 /*team*/)
 {
 }
 
@@ -392,7 +392,7 @@ void BattlegroundAB::_NodeOccupied(uint8 node, Team team)
     if (capturedNodes >= 4)
         CastSpellOnTeam(SPELL_AB_QUEST_REWARD_4_BASES, team);
 
-    Creature* trigger = BgCreatures[node+7] ? GetBGCreature(node+7) : NULL; // 0-6 spirit guides
+    Creature* trigger = !BgCreatures[node + 7] ? GetBGCreature(node + 7) : NULL; // 0-6 spirit guides
     if (!trigger)
         trigger = AddCreature(WORLD_TRIGGER, node+7, BG_AB_NodePositions[node], GetTeamIndexByTeamId(team));
 
diff --git a/src/server/game/Battlegrounds/Zones/BattlegroundAB.h b/src/server/game/Battlegrounds/Zones/BattlegroundAB.h
index d99c206e0c8..dab5674ff0a 100644
--- a/src/server/game/Battlegrounds/Zones/BattlegroundAB.h
+++ b/src/server/game/Battlegrounds/Zones/BattlegroundAB.h
@@ -242,7 +242,7 @@ struct BattlegroundABScore final : public BattlegroundScore
     friend class BattlegroundAB;
 
     protected:
-        BattlegroundABScore(uint64 playerGuid, uint32 team) : BattlegroundScore(playerGuid, team), BasesAssaulted(0), BasesDefended(0) { }
+        BattlegroundABScore(ObjectGuid playerGuid, uint32 team) : BattlegroundScore(playerGuid, team), BasesAssaulted(0), BasesDefended(0) { }
 
         void UpdateScore(uint32 type, uint32 value) override
         {
@@ -283,7 +283,7 @@ class BattlegroundAB : public Battleground
         void AddPlayer(Player* player) override;
         void StartingEventCloseDoors() override;
         void StartingEventOpenDoors() override;
-        void RemovePlayer(Player* player, uint64 guid, uint32 team) override;
+        void RemovePlayer(Player* player, ObjectGuid guid, uint32 team) override;
         void HandleAreaTrigger(Player* Source, uint32 Trigger) override;
         bool SetupBattleground() override;
         void Reset() override;
diff --git a/src/server/game/Battlegrounds/Zones/BattlegroundAV.cpp b/src/server/game/Battlegrounds/Zones/BattlegroundAV.cpp
index ce095e39592..0f3b42b3b2c 100644
--- a/src/server/game/Battlegrounds/Zones/BattlegroundAV.cpp
+++ b/src/server/game/Battlegrounds/Zones/BattlegroundAV.cpp
@@ -119,7 +119,7 @@ void BattlegroundAV::HandleKillUnit(Creature* unit, Player* killer)
         DelCreature(AV_CPLACE_TRIGGER16);
 
         if (Creature* herold = GetBGCreature(AV_CPLACE_HERALD))
-            herold->AI()->TalkToMap(TEXT_STORMPIKE_GENERAL_DEAD);
+            herold->AI()->Talk(TEXT_STORMPIKE_GENERAL_DEAD);
     }
     else if (entry == BG_AV_CreatureInfo[AV_NPC_H_CAPTAIN])
     {
@@ -138,7 +138,7 @@ void BattlegroundAV::HandleKillUnit(Creature* unit, Player* killer)
         DelCreature(AV_CPLACE_TRIGGER18);
 
         if (Creature* herold = GetBGCreature(AV_CPLACE_HERALD))
-            herold->AI()->TalkToMap(TEXT_FROSTWOLF_GENERAL_DEAD);
+            herold->AI()->Talk(TEXT_FROSTWOLF_GENERAL_DEAD);
     }
     else if (entry == BG_AV_CreatureInfo[AV_NPC_N_MINE_N_4] || entry == BG_AV_CreatureInfo[AV_NPC_N_MINE_A_4] || entry == BG_AV_CreatureInfo[AV_NPC_N_MINE_H_4])
         ChangeMineOwner(AV_NORTH_MINE, killer->GetTeam());
@@ -480,7 +480,7 @@ void BattlegroundAV::EndBattleground(uint32 winner)
     Battleground::EndBattleground(winner);
 }
 
-void BattlegroundAV::RemovePlayer(Player* player, uint64 /*guid*/, uint32 /*team*/)
+void BattlegroundAV::RemovePlayer(Player* player, ObjectGuid /*guid*/, uint32 /*team*/)
 {
    if (!player)
     {
@@ -603,7 +603,7 @@ void BattlegroundAV::EventPlayerDestroyedPoint(BG_AV_Nodes node)
 
     if (StaticNodeInfo const* nodeInfo = GetStaticNodeInfo(node))
         if (Creature* herold = GetBGCreature(AV_CPLACE_HERALD))
-            herold->AI()->TalkToMap(owner == ALLIANCE ? nodeInfo->TextIds.AllianceCapture : nodeInfo->TextIds.HordeCapture);
+            herold->AI()->Talk(owner == ALLIANCE ? nodeInfo->TextIds.AllianceCapture : nodeInfo->TextIds.HordeCapture);
 }
 
 void BattlegroundAV::ChangeMineOwner(uint8 mine, uint32 team, bool initial)
@@ -679,9 +679,9 @@ void BattlegroundAV::ChangeMineOwner(uint8 mine, uint32 team, bool initial)
         if (Creature* herold = GetBGCreature(AV_CPLACE_HERALD))
         {
             if (mine == AV_NORTH_MINE)
-                herold->AI()->TalkToMap(team == ALLIANCE ? TEXT_IRONDEEP_MINE_ALLIANCE_TAKEN : TEXT_IRONDEEP_MINE_HORDE_TAKEN);
+                herold->AI()->Talk(team == ALLIANCE ? TEXT_IRONDEEP_MINE_ALLIANCE_TAKEN : TEXT_IRONDEEP_MINE_HORDE_TAKEN);
             else if (mine == AV_SOUTH_MINE)
-                herold->AI()->TalkToMap(team == ALLIANCE ? TEXT_COLDTOOTH_MINE_ALLIANCE_TAKEN : TEXT_COLDTOOTH_MINE_HORDE_TAKEN);
+                herold->AI()->Talk(team == ALLIANCE ? TEXT_COLDTOOTH_MINE_ALLIANCE_TAKEN : TEXT_COLDTOOTH_MINE_HORDE_TAKEN);
         }
     }
     else
@@ -923,7 +923,7 @@ void BattlegroundAV::EventPlayerDefendsPoint(Player* player, uint32 object)
 
     if (StaticNodeInfo const* nodeInfo = GetStaticNodeInfo(node))
         if (Creature* herold = GetBGCreature(AV_CPLACE_HERALD))
-            herold->AI()->TalkToMap(team == ALLIANCE ? nodeInfo->TextIds.AllianceCapture : nodeInfo->TextIds.HordeCapture);
+            herold->AI()->Talk(team == ALLIANCE ? nodeInfo->TextIds.AllianceCapture : nodeInfo->TextIds.HordeCapture);
 
     // update the statistic for the defending player
     UpdatePlayerScore(player, IsTower(node) ? SCORE_TOWERS_DEFENDED : SCORE_GRAVEYARDS_DEFENDED, 1);
@@ -1014,7 +1014,7 @@ void BattlegroundAV::EventPlayerAssaultsPoint(Player* player, uint32 object)
 
     if (StaticNodeInfo const* nodeInfo = GetStaticNodeInfo(node))
         if (Creature* herold = GetBGCreature(AV_CPLACE_HERALD))
-            herold->AI()->TalkToMap(team == ALLIANCE ? nodeInfo->TextIds.AllianceAttack : nodeInfo->TextIds.HordeAttack);
+            herold->AI()->Talk(team == ALLIANCE ? nodeInfo->TextIds.AllianceAttack : nodeInfo->TextIds.HordeAttack);
 
     // update the statistic for the assaulting player
     UpdatePlayerScore(player, (IsTower(node)) ? SCORE_TOWERS_ASSAULTED : SCORE_GRAVEYARDS_ASSAULTED, 1);
diff --git a/src/server/game/Battlegrounds/Zones/BattlegroundAV.h b/src/server/game/Battlegrounds/Zones/BattlegroundAV.h
index aef8438dcfb..4df0bcb38b7 100644
--- a/src/server/game/Battlegrounds/Zones/BattlegroundAV.h
+++ b/src/server/game/Battlegrounds/Zones/BattlegroundAV.h
@@ -1554,7 +1554,7 @@ struct BattlegroundAVScore final : public BattlegroundScore
     friend class BattlegroundAV;
 
     protected:
-        BattlegroundAVScore(uint64 playerGuid, uint32 team) : BattlegroundScore(playerGuid, team), GraveyardsAssaulted(0), GraveyardsDefended(0), TowersAssaulted(0), TowersDefended(0), MinesCaptured(0) { }
+        BattlegroundAVScore(ObjectGuid playerGuid, uint32 team) : BattlegroundScore(playerGuid, team), GraveyardsAssaulted(0), GraveyardsDefended(0), TowersAssaulted(0), TowersDefended(0), MinesCaptured(0) { }
 
         void UpdateScore(uint32 type, uint32 value) override
         {
@@ -1615,7 +1615,7 @@ class BattlegroundAV : public Battleground
         void StartingEventCloseDoors() override;
         void StartingEventOpenDoors() override;
 
-        void RemovePlayer(Player* player, uint64 guid, uint32 team) override;
+        void RemovePlayer(Player* player, ObjectGuid guid, uint32 team) override;
         void HandleAreaTrigger(Player* player, uint32 trigger) override;
         bool SetupBattleground() override;
         void ResetBGSubclass() override;
diff --git a/src/server/game/Battlegrounds/Zones/BattlegroundBFG.h b/src/server/game/Battlegrounds/Zones/BattlegroundBFG.h
index e00c940e134..91e416c795a 100644
--- a/src/server/game/Battlegrounds/Zones/BattlegroundBFG.h
+++ b/src/server/game/Battlegrounds/Zones/BattlegroundBFG.h
@@ -24,7 +24,7 @@
 class BattlegroundBFGScore final : public BattlegroundScore
 {
     protected:
-        BattlegroundBFGScore(uint64 playerGuid, uint32 team) : BattlegroundScore(playerGuid, team), BasesAssaulted(0), BasesDefended(0) { }
+        BattlegroundBFGScore(ObjectGuid playerGuid, uint32 team) : BattlegroundScore(playerGuid, team), BasesAssaulted(0), BasesDefended(0) { }
 
         void UpdateScore(uint32 type, uint32 value) override
         {
diff --git a/src/server/game/Battlegrounds/Zones/BattlegroundEY.cpp b/src/server/game/Battlegrounds/Zones/BattlegroundEY.cpp
index c25c915dd7a..1c336e1a359 100644
--- a/src/server/game/Battlegrounds/Zones/BattlegroundEY.cpp
+++ b/src/server/game/Battlegrounds/Zones/BattlegroundEY.cpp
@@ -46,8 +46,8 @@ BattlegroundEY::BattlegroundEY()
     m_HonorScoreTics[TEAM_HORDE] = 0;
     m_TeamPointsCount[TEAM_ALLIANCE] = 0;
     m_TeamPointsCount[TEAM_HORDE] = 0;
-    m_FlagKeeper = 0;
-    m_DroppedFlagGUID = 0;
+    m_FlagKeeper.Clear();
+    m_DroppedFlagGUID.Clear();
     m_FlagCapturedBgObjectType = 0;
     m_FlagState = BG_EY_FLAG_STATE_ON_BASE;
     m_FlagsTimer = 0;
@@ -171,7 +171,7 @@ void BattlegroundEY::CheckSomeoneJoinedPoint()
                 Player* player = ObjectAccessor::FindPlayer(m_PlayersNearPoint[EY_POINTS_MAX][j]);
                 if (!player)
                 {
-                    TC_LOG_ERROR("bg.battleground", "BattlegroundEY:CheckSomeoneJoinedPoint: Player (GUID: %u) not found!", GUID_LOPART(m_PlayersNearPoint[EY_POINTS_MAX][j]));
+                    TC_LOG_ERROR("bg.battleground", "BattlegroundEY:CheckSomeoneJoinedPoint: Player (%s) not found!", m_PlayersNearPoint[EY_POINTS_MAX][j].ToString().c_str());
                     ++j;
                     continue;
                 }
@@ -211,7 +211,7 @@ void BattlegroundEY::CheckSomeoneLeftPoint()
                 Player* player = ObjectAccessor::FindPlayer(m_PlayersNearPoint[i][j]);
                 if (!player)
                 {
-                    TC_LOG_ERROR("bg.battleground", "BattlegroundEY:CheckSomeoneLeftPoint Player (GUID: %u) not found!", GUID_LOPART(m_PlayersNearPoint[i][j]));
+                    TC_LOG_ERROR("bg.battleground", "BattlegroundEY:CheckSomeoneLeftPoint Player (%s) not found!", m_PlayersNearPoint[i][j].ToString().c_str());
                     //move not existed player to "free space" - this will cause many error showing in log, but it is a very important bug
                     m_PlayersNearPoint[EY_POINTS_MAX].push_back(m_PlayersNearPoint[i][j]);
                     m_PlayersNearPoint[i].erase(m_PlayersNearPoint[i].begin() + j);
@@ -368,7 +368,7 @@ void BattlegroundEY::AddPlayer(Player* player)
     m_PlayersNearPoint[EY_POINTS_MAX].push_back(player->GetGUID());
 }
 
-void BattlegroundEY::RemovePlayer(Player* player, uint64 guid, uint32 /*team*/)
+void BattlegroundEY::RemovePlayer(Player* player, ObjectGuid guid, uint32 /*team*/)
 {
     // sometimes flag aura not removed :(
     for (int j = EY_POINTS_MAX; j >= 0; --j)
@@ -385,7 +385,7 @@ void BattlegroundEY::RemovePlayer(Player* player, uint64 guid, uint32 /*team*/)
                 EventPlayerDroppedFlag(player);
             else
             {
-                SetFlagPicker(0);
+                SetFlagPicker(ObjectGuid::Empty);
                 RespawnFlag(true);
             }
         }
@@ -548,8 +548,8 @@ void BattlegroundEY::Reset()
     m_HonorScoreTics[TEAM_HORDE] = 0;
     m_FlagState = BG_EY_FLAG_STATE_ON_BASE;
     m_FlagCapturedBgObjectType = 0;
-    m_FlagKeeper = 0;
-    m_DroppedFlagGUID = 0;
+    m_FlagKeeper.Clear();
+    m_DroppedFlagGUID.Clear();
     m_PointAddingTimer = 0;
     m_TowerCapCheckTimer = 0;
     bool isBGWeekend = sBattlegroundMgr->IsBGWeekend(GetTypeID());
@@ -593,9 +593,9 @@ void BattlegroundEY::RespawnFlagAfterDrop()
     if (obj)
         obj->Delete();
     else
-        TC_LOG_ERROR("bg.battleground", "BattlegroundEY: Unknown dropped flag guid: %u", GUID_LOPART(GetDroppedFlagGUID()));
+        TC_LOG_ERROR("bg.battleground", "BattlegroundEY: Unknown dropped flag (%s)", GetDroppedFlagGUID().ToString().c_str());
 
-    SetDroppedFlagGUID(0);
+    SetDroppedFlagGUID(ObjectGuid::Empty);
 }
 
 void BattlegroundEY::HandleKillPlayer(Player* player, Player* killer)
@@ -615,7 +615,7 @@ void BattlegroundEY::EventPlayerDroppedFlag(Player* player)
         // just take off the aura
         if (IsFlagPickedup() && GetFlagPickerGUID() == player->GetGUID())
         {
-            SetFlagPicker(0);
+            SetFlagPicker(ObjectGuid::Empty);
             player->RemoveAurasDueToSpell(BG_EY_NETHERSTORM_FLAG_SPELL);
         }
         return;
@@ -627,7 +627,7 @@ void BattlegroundEY::EventPlayerDroppedFlag(Player* player)
     if (GetFlagPickerGUID() != player->GetGUID())
         return;
 
-    SetFlagPicker(0);
+    SetFlagPicker(ObjectGuid::Empty);
     player->RemoveAurasDueToSpell(BG_EY_NETHERSTORM_FLAG_SPELL);
     m_FlagState = BG_EY_FLAG_STATE_ON_GROUND;
     m_FlagsTimer = BG_EY_FLAG_RESPAWN_TIME;
@@ -795,7 +795,7 @@ void BattlegroundEY::EventPlayerCapturedFlag(Player* player, uint32 BgObjectType
     if (GetStatus() != STATUS_IN_PROGRESS || GetFlagPickerGUID() != player->GetGUID())
         return;
 
-    SetFlagPicker(0);
+    SetFlagPicker(ObjectGuid::Empty);
     m_FlagState = BG_EY_FLAG_STATE_WAIT_RESPAWN;
     player->RemoveAurasDueToSpell(BG_EY_NETHERSTORM_FLAG_SPELL);
 
diff --git a/src/server/game/Battlegrounds/Zones/BattlegroundEY.h b/src/server/game/Battlegrounds/Zones/BattlegroundEY.h
index e1eaa6dd5fe..b3e167c4b23 100644
--- a/src/server/game/Battlegrounds/Zones/BattlegroundEY.h
+++ b/src/server/game/Battlegrounds/Zones/BattlegroundEY.h
@@ -328,7 +328,7 @@ struct BattlegroundEYScore final : public BattlegroundScore
     friend class BattlegroundEY;
 
     protected:
-        BattlegroundEYScore(uint64 playerGuid, uint32 team) : BattlegroundScore(playerGuid, team), FlagCaptures(0) { }
+        BattlegroundEYScore(ObjectGuid playerGuid, uint32 team) : BattlegroundScore(playerGuid, team), FlagCaptures(0) { }
 
         void UpdateScore(uint32 type, uint32 value) override
         {
@@ -366,15 +366,14 @@ class BattlegroundEY : public Battleground
         void StartingEventOpenDoors() override;
 
         /* BG Flags */
-        uint64 GetFlagPickerGUID(int32 /*team*/ = -1) const override    { return m_FlagKeeper; }
-        void SetFlagPicker(uint64 guid)     { m_FlagKeeper = guid; }
-        bool IsFlagPickedup() const         { return m_FlagKeeper != 0; }
+        ObjectGuid GetFlagPickerGUID(int32 /*team*/ = -1) const override { return m_FlagKeeper; }
+        void SetFlagPicker(ObjectGuid guid) { m_FlagKeeper = guid; }
+        bool IsFlagPickedup() const         { return !m_FlagKeeper.IsEmpty(); }
         uint8 GetFlagState() const          { return m_FlagState; }
         void RespawnFlag(bool send_message);
         void RespawnFlagAfterDrop();
 
-        void RemovePlayer(Player* player, uint64 guid, uint32 team) override;
-        void HandleBuffUse(uint64 buff_guid);
+        void RemovePlayer(Player* player, ObjectGuid guid, uint32 team) override;
         void HandleAreaTrigger(Player* Source, uint32 Trigger) override;
         void HandleKillPlayer(Player* player, Player* killer) override;
         WorldSafeLocsEntry const* GetClosestGraveYard(Player* player) override;
@@ -384,8 +383,8 @@ class BattlegroundEY : public Battleground
         void EndBattleground(uint32 winner) override;
         bool UpdatePlayerScore(Player* player, uint32 type, uint32 value, bool doAddHonor = true) override;
         void FillInitialWorldStates(WorldPacket& data) override;
-        void SetDroppedFlagGUID(uint64 guid, int32 /*TeamID*/ = -1) override  { m_DroppedFlagGUID = guid;}
-        uint64 GetDroppedFlagGUID() const          { return m_DroppedFlagGUID;}
+        void SetDroppedFlagGUID(ObjectGuid guid, int32 /*TeamID*/ = -1) override  { m_DroppedFlagGUID = guid; }
+        ObjectGuid GetDroppedFlagGUID() const { return m_DroppedFlagGUID; }
 
         /* Battleground Events */
         void EventPlayerClickedOnFlag(Player* Source, GameObject* target_obj) override;
@@ -420,8 +419,8 @@ class BattlegroundEY : public Battleground
 
         uint32 m_Points_Trigger[EY_POINTS_MAX];
 
-        uint64 m_FlagKeeper;                                // keepers guid
-        uint64 m_DroppedFlagGUID;
+        ObjectGuid m_FlagKeeper;                                // keepers guid
+        ObjectGuid m_DroppedFlagGUID;
         uint32 m_FlagCapturedBgObjectType;                  // type that should be despawned when flag is captured
         uint8 m_FlagState;                                  // for checking flag state
         int32 m_FlagsTimer;
@@ -430,8 +429,7 @@ class BattlegroundEY : public Battleground
         uint32 m_PointOwnedByTeam[EY_POINTS_MAX];
         uint8 m_PointState[EY_POINTS_MAX];
         int32 m_PointBarStatus[EY_POINTS_MAX];
-        typedef std::vector<uint64> PlayersNearPointType;
-        PlayersNearPointType m_PlayersNearPoint[EY_POINTS_MAX + 1];
+        GuidVector m_PlayersNearPoint[EY_POINTS_MAX + 1];
         uint8 m_CurrentPointPlayersCount[2*EY_POINTS_MAX];
 
         int32 m_PointAddingTimer;
diff --git a/src/server/game/Battlegrounds/Zones/BattlegroundIC.cpp b/src/server/game/Battlegrounds/Zones/BattlegroundIC.cpp
index e5de2e86a2e..4e0bdd17162 100644
--- a/src/server/game/Battlegrounds/Zones/BattlegroundIC.cpp
+++ b/src/server/game/Battlegrounds/Zones/BattlegroundIC.cpp
@@ -68,7 +68,7 @@ void BattlegroundIC::HandlePlayerResurrect(Player* player)
         player->CastSpell(player, SPELL_OIL_REFINERY, true);
 }
 
-void BattlegroundIC::DoAction(uint32 action, uint64 var)
+void BattlegroundIC::DoAction(uint32 action, ObjectGuid var)
 {
     if (action != ACTION_TELEPORT_PLAYER_TO_TRANSPORT)
         return;
@@ -282,7 +282,7 @@ void BattlegroundIC::AddPlayer(Player* player)
         player->CastSpell(player, SPELL_OIL_REFINERY, true);
 }
 
-void BattlegroundIC::RemovePlayer(Player* player, uint64 /*guid*/, uint32 /*team*/)
+void BattlegroundIC::RemovePlayer(Player* player, ObjectGuid /*guid*/, uint32 /*team*/)
 {
     if (player)
     {
@@ -865,7 +865,7 @@ bool BattlegroundIC::IsSpellAllowed(uint32 spellId, Player const* player) const
         case SPELL_QUARRY:
         {
             uint32 team = player->GetTeamId();
-            uint8 nodeType = spellId = SPELL_OIL_REFINERY ? NODE_TYPE_REFINERY : NODE_TYPE_QUARRY;
+            uint8 nodeType = spellId == SPELL_OIL_REFINERY ? NODE_TYPE_REFINERY : NODE_TYPE_QUARRY;
             uint8 nodeState = team == TEAM_ALLIANCE ? NODE_STATE_CONTROLLED_A : NODE_STATE_CONTROLLED_H;
             return GetNodeState(nodeType) == nodeState;
         }
diff --git a/src/server/game/Battlegrounds/Zones/BattlegroundIC.h b/src/server/game/Battlegrounds/Zones/BattlegroundIC.h
index 8a7995cf2c1..64186faf9ea 100644
--- a/src/server/game/Battlegrounds/Zones/BattlegroundIC.h
+++ b/src/server/game/Battlegrounds/Zones/BattlegroundIC.h
@@ -853,7 +853,7 @@ struct BattlegroundICScore final : public BattlegroundScore
     friend class BattlegroundIC;
 
     protected:
-        BattlegroundICScore(uint64 playerGuid, uint32 team) : BattlegroundScore(playerGuid, team), BasesAssaulted(0), BasesDefended(0) { }
+        BattlegroundICScore(ObjectGuid playerGuid, uint32 team) : BattlegroundScore(playerGuid, team), BasesAssaulted(0), BasesDefended(0) { }
 
         void UpdateScore(uint32 type, uint32 value) override
         {
@@ -897,7 +897,7 @@ class BattlegroundIC : public Battleground
         void StartingEventOpenDoors() override;
         void PostUpdateImpl(uint32 diff) override;
 
-        void RemovePlayer(Player* player, uint64 guid, uint32 team) override;
+        void RemovePlayer(Player* player, ObjectGuid guid, uint32 team) override;
         void HandleAreaTrigger(Player* player, uint32 trigger) override;
         bool SetupBattleground() override;
         void SpawnLeader(uint32 teamid);
@@ -913,7 +913,7 @@ class BattlegroundIC : public Battleground
         /* Scorekeeping */
         void FillInitialWorldStates(WorldPacket& data) override;
 
-        void DoAction(uint32 action, uint64 var) override;
+        void DoAction(uint32 action, ObjectGuid var) override;
 
         void HandlePlayerResurrect(Player* player) override;
 
diff --git a/src/server/game/Battlegrounds/Zones/BattlegroundSA.cpp b/src/server/game/Battlegrounds/Zones/BattlegroundSA.cpp
index 11e07566092..63f7ceaef65 100644
--- a/src/server/game/Battlegrounds/Zones/BattlegroundSA.cpp
+++ b/src/server/game/Battlegrounds/Zones/BattlegroundSA.cpp
@@ -506,7 +506,7 @@ void BattlegroundSA::AddPlayer(Player* player)
     }
 }
 
-void BattlegroundSA::RemovePlayer(Player* /*player*/, uint64 /*guid*/, uint32 /*team*/) { }
+void BattlegroundSA::RemovePlayer(Player* /*player*/, ObjectGuid /*guid*/, uint32 /*team*/) { }
 
 void BattlegroundSA::HandleAreaTrigger(Player* /*Source*/, uint32 /*Trigger*/)
 {
diff --git a/src/server/game/Battlegrounds/Zones/BattlegroundSA.h b/src/server/game/Battlegrounds/Zones/BattlegroundSA.h
index 6f5363aeaa8..dad44d07545 100644
--- a/src/server/game/Battlegrounds/Zones/BattlegroundSA.h
+++ b/src/server/game/Battlegrounds/Zones/BattlegroundSA.h
@@ -513,7 +513,7 @@ struct BattlegroundSAScore final : public BattlegroundScore
     friend class BattlegroundSA;
 
     protected:
-        BattlegroundSAScore(uint64 playerGuid, uint32 team) : BattlegroundScore(playerGuid, team), DemolishersDestroyed(0), GatesDestroyed(0) { }
+        BattlegroundSAScore(ObjectGuid playerGuid, uint32 team) : BattlegroundScore(playerGuid, team), DemolishersDestroyed(0), GatesDestroyed(0) { }
 
         void UpdateScore(uint32 type, uint32 value) override
         {
@@ -594,7 +594,7 @@ class BattlegroundSA : public Battleground
         void EndBattleground(uint32 winner) override;
 
         /// Called when a player leave battleground
-        void RemovePlayer(Player* player, uint64 guid, uint32 team) override;
+        void RemovePlayer(Player* player, ObjectGuid guid, uint32 team) override;
         void HandleAreaTrigger(Player* Source, uint32 Trigger) override;
 
         /* Scorekeeping */
diff --git a/src/server/game/Battlegrounds/Zones/BattlegroundTP.h b/src/server/game/Battlegrounds/Zones/BattlegroundTP.h
index 77f649d971c..d8aaaafbd41 100644
--- a/src/server/game/Battlegrounds/Zones/BattlegroundTP.h
+++ b/src/server/game/Battlegrounds/Zones/BattlegroundTP.h
@@ -24,7 +24,7 @@
 class BattlegroundTPScore final : public BattlegroundScore
 {
     protected:
-        BattlegroundTPScore(uint64 playerGuid, uint32 team) : BattlegroundScore(playerGuid, team), FlagCaptures(0), FlagReturns(0) { }
+        BattlegroundTPScore(ObjectGuid playerGuid, uint32 team) : BattlegroundScore(playerGuid, team), FlagCaptures(0), FlagReturns(0) { }
 
         void UpdateScore(uint32 type, uint32 value) override
         {
diff --git a/src/server/game/Battlegrounds/Zones/BattlegroundWS.cpp b/src/server/game/Battlegrounds/Zones/BattlegroundWS.cpp
index bcf7093a640..17478781137 100644
--- a/src/server/game/Battlegrounds/Zones/BattlegroundWS.cpp
+++ b/src/server/game/Battlegrounds/Zones/BattlegroundWS.cpp
@@ -54,10 +54,10 @@ BattlegroundWS::BattlegroundWS()
     _flagSpellForceTimer = 0;
     _bothFlagsKept = false;
     _flagDebuffState = 0;
-    m_FlagKeepers[TEAM_ALLIANCE] = 0;
-    m_FlagKeepers[TEAM_HORDE] = 0;
-    m_DroppedFlagGUID[TEAM_ALLIANCE] = 0;
-    m_DroppedFlagGUID[TEAM_HORDE] = 0;
+    m_FlagKeepers[TEAM_ALLIANCE].Clear();
+    m_FlagKeepers[TEAM_HORDE].Clear();
+    m_DroppedFlagGUID[TEAM_ALLIANCE].Clear();
+    m_DroppedFlagGUID[TEAM_HORDE].Clear();
     _flagState[TEAM_ALLIANCE] = BG_WS_FLAG_STATE_ON_BASE;
     _flagState[TEAM_HORDE] = BG_WS_FLAG_STATE_ON_BASE;
     _flagsTimer[TEAM_ALLIANCE] = 0;
@@ -278,9 +278,9 @@ void BattlegroundWS::RespawnFlagAfterDrop(uint32 team)
     if (GameObject* obj = GetBgMap()->GetGameObject(GetDroppedFlagGUID(team)))
         obj->Delete();
     else
-        TC_LOG_ERROR("bg.battleground", "unknown droped flag bg, guid: %u", GUID_LOPART(GetDroppedFlagGUID(team)));
+        TC_LOG_ERROR("bg.battleground", "unknown dropped flag (%s)", GetDroppedFlagGUID(team).ToString().c_str());
 
-    SetDroppedFlagGUID(0, GetTeamIndexByTeamId(team));
+    SetDroppedFlagGUID(ObjectGuid::Empty, GetTeamIndexByTeamId(team));
     _bothFlagsKept = false;
 }
 
@@ -296,7 +296,7 @@ void BattlegroundWS::EventPlayerCapturedFlag(Player* player)
     {
         if (!IsHordeFlagPickedup())
             return;
-        SetHordeFlagPicker(0);                              // must be before aura remove to prevent 2 events (drop+capture) at the same time
+        SetHordeFlagPicker(ObjectGuid::Empty);              // must be before aura remove to prevent 2 events (drop+capture) at the same time
                                                             // horde flag in base (but not respawned yet)
         _flagState[TEAM_HORDE] = BG_WS_FLAG_STATE_WAIT_RESPAWN;
                                                             // Drop Horde Flag from Player
@@ -315,7 +315,7 @@ void BattlegroundWS::EventPlayerCapturedFlag(Player* player)
     {
         if (!IsAllianceFlagPickedup())
             return;
-        SetAllianceFlagPicker(0);                           // must be before aura remove to prevent 2 events (drop+capture) at the same time
+        SetAllianceFlagPicker(ObjectGuid::Empty);           // must be before aura remove to prevent 2 events (drop+capture) at the same time
                                                             // alliance flag in base (but not respawned yet)
         _flagState[TEAM_ALLIANCE] = BG_WS_FLAG_STATE_WAIT_RESPAWN;
                                                             // Drop Alliance Flag from Player
@@ -385,7 +385,7 @@ void BattlegroundWS::EventPlayerDroppedFlag(Player* player)
 
             if (GetFlagPickerGUID(TEAM_HORDE) == player->GetGUID())
             {
-                SetHordeFlagPicker(0);
+                SetHordeFlagPicker(ObjectGuid::Empty);
                 player->RemoveAurasDueToSpell(BG_WS_SPELL_WARSONG_FLAG);
             }
         }
@@ -396,7 +396,7 @@ void BattlegroundWS::EventPlayerDroppedFlag(Player* player)
 
             if (GetFlagPickerGUID(TEAM_ALLIANCE) == player->GetGUID())
             {
-                SetAllianceFlagPicker(0);
+                SetAllianceFlagPicker(ObjectGuid::Empty);
                 player->RemoveAurasDueToSpell(BG_WS_SPELL_SILVERWING_FLAG);
             }
         }
@@ -411,7 +411,7 @@ void BattlegroundWS::EventPlayerDroppedFlag(Player* player)
             return;
         if (GetFlagPickerGUID(TEAM_HORDE) == player->GetGUID())
         {
-            SetHordeFlagPicker(0);
+            SetHordeFlagPicker(ObjectGuid::Empty);
             player->RemoveAurasDueToSpell(BG_WS_SPELL_WARSONG_FLAG);
             if (_flagDebuffState == 1)
               player->RemoveAurasDueToSpell(WS_SPELL_FOCUSED_ASSAULT);
@@ -428,7 +428,7 @@ void BattlegroundWS::EventPlayerDroppedFlag(Player* player)
             return;
         if (GetFlagPickerGUID(TEAM_ALLIANCE) == player->GetGUID())
         {
-            SetAllianceFlagPicker(0);
+            SetAllianceFlagPicker(ObjectGuid::Empty);
             player->RemoveAurasDueToSpell(BG_WS_SPELL_SILVERWING_FLAG);
             if (_flagDebuffState == 1)
               player->RemoveAurasDueToSpell(WS_SPELL_FOCUSED_ASSAULT);
@@ -583,7 +583,7 @@ void BattlegroundWS::EventPlayerClickedOnFlag(Player* player, GameObject* target
     player->RemoveAurasWithInterruptFlags(AURA_INTERRUPT_FLAG_ENTER_PVP_COMBAT);
 }
 
-void BattlegroundWS::RemovePlayer(Player* player, uint64 guid, uint32 /*team*/)
+void BattlegroundWS::RemovePlayer(Player* player, ObjectGuid guid, uint32 /*team*/)
 {
     // sometimes flag aura not removed :(
     if (IsAllianceFlagPickedup() && m_FlagKeepers[TEAM_ALLIANCE] == guid)
@@ -591,7 +591,7 @@ void BattlegroundWS::RemovePlayer(Player* player, uint64 guid, uint32 /*team*/)
         if (!player)
         {
             TC_LOG_ERROR("bg.battleground", "BattlegroundWS: Removing offline player who has the FLAG!!");
-            SetAllianceFlagPicker(0);
+            SetAllianceFlagPicker(ObjectGuid::Empty);
             RespawnFlag(ALLIANCE, false);
         }
         else
@@ -602,7 +602,7 @@ void BattlegroundWS::RemovePlayer(Player* player, uint64 guid, uint32 /*team*/)
         if (!player)
         {
             TC_LOG_ERROR("bg.battleground", "BattlegroundWS: Removing offline player who has the FLAG!!");
-            SetHordeFlagPicker(0);
+            SetHordeFlagPicker(ObjectGuid::Empty);
             RespawnFlag(HORDE, false);
         }
         else
@@ -731,10 +731,10 @@ void BattlegroundWS::Reset()
     //call parent's class reset
     Battleground::Reset();
 
-    m_FlagKeepers[TEAM_ALLIANCE]     = 0;
-    m_FlagKeepers[TEAM_HORDE]        = 0;
-    m_DroppedFlagGUID[TEAM_ALLIANCE] = 0;
-    m_DroppedFlagGUID[TEAM_HORDE]    = 0;
+    m_FlagKeepers[TEAM_ALLIANCE].Clear();
+    m_FlagKeepers[TEAM_HORDE].Clear();
+    m_DroppedFlagGUID[TEAM_ALLIANCE].Clear();
+    m_DroppedFlagGUID[TEAM_HORDE].Clear();
     _flagState[TEAM_ALLIANCE]        = BG_WS_FLAG_STATE_ON_BASE;
     _flagState[TEAM_HORDE]           = BG_WS_FLAG_STATE_ON_BASE;
     m_TeamScores[TEAM_ALLIANCE]      = 0;
diff --git a/src/server/game/Battlegrounds/Zones/BattlegroundWS.h b/src/server/game/Battlegrounds/Zones/BattlegroundWS.h
index 5691b42d4e9..51dd77d36c3 100644
--- a/src/server/game/Battlegrounds/Zones/BattlegroundWS.h
+++ b/src/server/game/Battlegrounds/Zones/BattlegroundWS.h
@@ -152,7 +152,7 @@ struct BattlegroundWGScore final : public BattlegroundScore
     friend class BattlegroundWS;
 
     protected:
-        BattlegroundWGScore(uint64 playerGuid, uint32 team) : BattlegroundScore(playerGuid, team), FlagCaptures(0), FlagReturns(0) { }
+        BattlegroundWGScore(ObjectGuid playerGuid, uint32 team) : BattlegroundScore(playerGuid, team), FlagCaptures(0), FlagReturns(0) { }
 
         void UpdateScore(uint32 type, uint32 value) override
         {
@@ -197,16 +197,16 @@ class BattlegroundWS : public Battleground
         void StartingEventOpenDoors() override;
 
         /* BG Flags */
-        uint64 GetFlagPickerGUID(int32 team) const override
+        ObjectGuid GetFlagPickerGUID(int32 team) const override
         {
             if (team == TEAM_ALLIANCE || team == TEAM_HORDE)
                 return m_FlagKeepers[team];
-            return 0;
+            return ObjectGuid::Empty;
         }
-        void SetAllianceFlagPicker(uint64 guid)     { m_FlagKeepers[TEAM_ALLIANCE] = guid; }
-        void SetHordeFlagPicker(uint64 guid)        { m_FlagKeepers[TEAM_HORDE] = guid; }
-        bool IsAllianceFlagPickedup() const         { return m_FlagKeepers[TEAM_ALLIANCE] != 0; }
-        bool IsHordeFlagPickedup() const            { return m_FlagKeepers[TEAM_HORDE] != 0; }
+        void SetAllianceFlagPicker(ObjectGuid guid) { m_FlagKeepers[TEAM_ALLIANCE] = guid; }
+        void SetHordeFlagPicker(ObjectGuid guid)    { m_FlagKeepers[TEAM_HORDE] = guid; }
+        bool IsAllianceFlagPickedup() const         { return !m_FlagKeepers[TEAM_ALLIANCE].IsEmpty(); }
+        bool IsHordeFlagPickedup() const            { return !m_FlagKeepers[TEAM_HORDE].IsEmpty(); }
         void RespawnFlag(uint32 Team, bool captured);
         void RespawnFlagAfterDrop(uint32 Team);
         uint8 GetFlagState(uint32 team)             { return _flagState[GetTeamIndexByTeamId(team)]; }
@@ -216,7 +216,7 @@ class BattlegroundWS : public Battleground
         void EventPlayerClickedOnFlag(Player* player, GameObject* target_obj) override;
         void EventPlayerCapturedFlag(Player* player);
 
-        void RemovePlayer(Player* player, uint64 guid, uint32 team) override;
+        void RemovePlayer(Player* player, ObjectGuid guid, uint32 team) override;
         void HandleAreaTrigger(Player* player, uint32 trigger) override;
         void HandleKillPlayer(Player* player, Player* killer) override;
         bool SetupBattleground() override;
@@ -228,13 +228,13 @@ class BattlegroundWS : public Battleground
         void SetLastFlagCapture(uint32 team)                { _lastFlagCaptureTeam = team; }
         void UpdateTeamScore(uint32 team);
         bool UpdatePlayerScore(Player* player, uint32 type, uint32 value, bool doAddHonor = true) override;
-        void SetDroppedFlagGUID(uint64 guid, int32 team = -1) override
+        void SetDroppedFlagGUID(ObjectGuid guid, int32 team = -1) override
         {
             if (team == TEAM_ALLIANCE || team == TEAM_HORDE)
                 m_DroppedFlagGUID[team] = guid;
         }
 
-        uint64 GetDroppedFlagGUID(uint32 TeamID)             { return m_DroppedFlagGUID[GetTeamIndexByTeamId(TeamID)];}
+        ObjectGuid GetDroppedFlagGUID(uint32 TeamID)             { return m_DroppedFlagGUID[GetTeamIndexByTeamId(TeamID)]; }
         void FillInitialWorldStates(WorldPacket& data) override;
 
         /* Scorekeeping */
@@ -248,8 +248,8 @@ class BattlegroundWS : public Battleground
         bool CheckAchievementCriteriaMeet(uint32 criteriaId, Player const* source, Unit const* target = nullptr, uint32 miscvalue1 = 0) override;
 
     private:
-        uint64 m_FlagKeepers[2];                            // 0 - alliance, 1 - horde
-        uint64 m_DroppedFlagGUID[2];
+        ObjectGuid m_FlagKeepers[2];                            // 0 - alliance, 1 - horde
+        ObjectGuid m_DroppedFlagGUID[2];
         uint8 _flagState[2];                               // for checking flag state
         int32 _flagsTimer[2];
         int32 _flagsDropTimer[2];
diff --git a/src/server/game/Calendar/CalendarMgr.cpp b/src/server/game/Calendar/CalendarMgr.cpp
index 64116b8f8c1..2e62e8514a0 100644
--- a/src/server/game/Calendar/CalendarMgr.cpp
+++ b/src/server/game/Calendar/CalendarMgr.cpp
@@ -58,7 +58,7 @@ void CalendarMgr::LoadFromDB()
             Field* fields = result->Fetch();
 
             uint64 eventId          = fields[0].GetUInt64();
-            uint64 creatorGUID      = MAKE_NEW_GUID(fields[1].GetUInt32(), 0, HIGHGUID_PLAYER);
+            ObjectGuid creatorGUID  = ObjectGuid(HIGHGUID_PLAYER, fields[1].GetUInt32());
             std::string title       = fields[2].GetString();
             std::string description = fields[3].GetString();
             CalendarEventType type  = CalendarEventType(fields[4].GetUInt8());
@@ -91,8 +91,8 @@ void CalendarMgr::LoadFromDB()
 
             uint64 inviteId             = fields[0].GetUInt64();
             uint64 eventId              = fields[1].GetUInt64();
-            uint64 invitee              = MAKE_NEW_GUID(fields[2].GetUInt32(), 0, HIGHGUID_PLAYER);
-            uint64 senderGUID           = MAKE_NEW_GUID(fields[3].GetUInt32(), 0, HIGHGUID_PLAYER);
+            ObjectGuid invitee          = ObjectGuid(HIGHGUID_PLAYER, fields[2].GetUInt32());
+            ObjectGuid senderGUID       = ObjectGuid(HIGHGUID_PLAYER, fields[3].GetUInt32());
             CalendarInviteStatus status = CalendarInviteStatus(fields[4].GetUInt8());
             uint32 statusTime           = fields[5].GetUInt32();
             CalendarModerationRank rank = CalendarModerationRank(fields[6].GetUInt8());
@@ -146,7 +146,7 @@ void CalendarMgr::AddInvite(CalendarEvent* calendarEvent, CalendarInvite* invite
     }
 }
 
-void CalendarMgr::RemoveEvent(uint64 eventId, uint64 remover)
+void CalendarMgr::RemoveEvent(uint64 eventId, ObjectGuid remover)
 {
     CalendarEvent* calendarEvent = GetEvent(eventId);
 
@@ -173,7 +173,7 @@ void CalendarMgr::RemoveEvent(uint64 eventId, uint64 remover)
         // guild events only? check invite status here?
         // When an event is deleted, all invited (accepted/declined? - verify) guildies are notified via in-game mail. (wowwiki)
         if (remover && invite->GetInviteeGUID() != remover)
-            mail.SendMailTo(trans, MailReceiver(invite->GetInviteeGUID()), calendarEvent, MAIL_CHECK_MASK_COPIED);
+            mail.SendMailTo(trans, MailReceiver(invite->GetInviteeGUID().GetCounter()), calendarEvent, MAIL_CHECK_MASK_COPIED);
 
         delete invite;
     }
@@ -189,7 +189,7 @@ void CalendarMgr::RemoveEvent(uint64 eventId, uint64 remover)
     _events.erase(calendarEvent);
 }
 
-void CalendarMgr::RemoveInvite(uint64 inviteId, uint64 eventId, uint64 /*remover*/)
+void CalendarMgr::RemoveInvite(uint64 inviteId, uint64 eventId, ObjectGuid /*remover*/)
 {
     CalendarEvent* calendarEvent = GetEvent(eventId);
 
@@ -228,7 +228,7 @@ void CalendarMgr::UpdateEvent(CalendarEvent* calendarEvent)
 {
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_REP_CALENDAR_EVENT);
     stmt->setUInt64(0, calendarEvent->GetEventId());
-    stmt->setUInt32(1, GUID_LOPART(calendarEvent->GetCreatorGUID()));
+    stmt->setUInt32(1, calendarEvent->GetCreatorGUID().GetCounter());
     stmt->setString(2, calendarEvent->GetTitle());
     stmt->setString(3, calendarEvent->GetDescription());
     stmt->setUInt8(4, calendarEvent->GetType());
@@ -250,8 +250,8 @@ void CalendarMgr::UpdateInvite(CalendarInvite* invite, SQLTransaction& trans)
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_REP_CALENDAR_INVITE);
     stmt->setUInt64(0, invite->GetInviteId());
     stmt->setUInt64(1, invite->GetEventId());
-    stmt->setUInt32(2, GUID_LOPART(invite->GetInviteeGUID()));
-    stmt->setUInt32(3, GUID_LOPART(invite->GetSenderGUID()));
+    stmt->setUInt32(2, invite->GetInviteeGUID().GetCounter());
+    stmt->setUInt32(3, invite->GetSenderGUID().GetCounter());
     stmt->setUInt8(4, invite->GetStatus());
     stmt->setUInt32(5, uint32(invite->GetStatusTime()));
     stmt->setUInt8(6, invite->GetRank());
@@ -259,18 +259,18 @@ void CalendarMgr::UpdateInvite(CalendarInvite* invite, SQLTransaction& trans)
     CharacterDatabase.ExecuteOrAppend(trans, stmt);
 }
 
-void CalendarMgr::RemoveAllPlayerEventsAndInvites(uint64 guid)
+void CalendarMgr::RemoveAllPlayerEventsAndInvites(ObjectGuid guid)
 {
     for (CalendarEventStore::const_iterator itr = _events.begin(); itr != _events.end(); ++itr)
         if ((*itr)->GetCreatorGUID() == guid)
-            RemoveEvent((*itr)->GetEventId(), 0); // don't send mail if removing a character
+            RemoveEvent((*itr)->GetEventId(), ObjectGuid::Empty); // don't send mail if removing a character
 
     CalendarInviteStore playerInvites = GetPlayerInvites(guid);
     for (CalendarInviteStore::const_iterator itr = playerInvites.begin(); itr != playerInvites.end(); ++itr)
         RemoveInvite((*itr)->GetInviteId(), (*itr)->GetEventId(), guid);
 }
 
-void CalendarMgr::RemovePlayerGuildEventsAndSignups(uint64 guid, uint32 guildId)
+void CalendarMgr::RemovePlayerGuildEventsAndSignups(ObjectGuid guid, uint32 guildId)
 {
     for (CalendarEventStore::const_iterator itr = _events.begin(); itr != _events.end(); ++itr)
         if ((*itr)->GetCreatorGUID() == guid && ((*itr)->IsGuildEvent() || (*itr)->IsGuildAnnouncement()))
@@ -340,7 +340,7 @@ uint64 CalendarMgr::GetFreeInviteId()
     return inviteId;
 }
 
-CalendarEventStore CalendarMgr::GetPlayerEvents(uint64 guid)
+CalendarEventStore CalendarMgr::GetPlayerEvents(ObjectGuid guid)
 {
     CalendarEventStore events;
 
@@ -363,7 +363,7 @@ CalendarInviteStore const& CalendarMgr::GetEventInvites(uint64 eventId)
     return _invites[eventId];
 }
 
-CalendarInviteStore CalendarMgr::GetPlayerInvites(uint64 guid)
+CalendarInviteStore CalendarMgr::GetPlayerInvites(ObjectGuid guid)
 {
     CalendarInviteStore invites;
 
@@ -375,7 +375,7 @@ CalendarInviteStore CalendarMgr::GetPlayerInvites(uint64 guid)
     return invites;
 }
 
-uint32 CalendarMgr::GetPlayerNumPending(uint64 guid)
+uint32 CalendarMgr::GetPlayerNumPending(ObjectGuid guid)
 {
     CalendarInviteStore const& invites = GetPlayerInvites(guid);
 
@@ -397,10 +397,10 @@ uint32 CalendarMgr::GetPlayerNumPending(uint64 guid)
     return pendingNum;
 }
 
-std::string CalendarEvent::BuildCalendarMailSubject(uint64 remover) const
+std::string CalendarEvent::BuildCalendarMailSubject(ObjectGuid remover) const
 {
     std::ostringstream strm;
-    strm << remover << ':' << _title;
+    strm << remover.GetRawValue() << ':' << _title;
     return strm.str();
 }
 
@@ -423,13 +423,13 @@ void CalendarMgr::SendCalendarEventInvite(CalendarInvite const& invite)
     time_t statusTime = invite.GetStatusTime();
     bool hasStatusTime = statusTime != 946684800;   // 01/01/2000 00:00:00
 
-    uint64 invitee = invite.GetInviteeGUID();
+    ObjectGuid invitee = invite.GetInviteeGUID();
     Player* player = ObjectAccessor::FindPlayer(invitee);
 
     uint8 level = player ? player->getLevel() : Player::GetLevelFromDB(invitee);
 
     WorldPacket data(SMSG_CALENDAR_EVENT_INVITE, 8 + 8 + 8 + 1 + 1 + 1 + (statusTime ? 4 : 0) + 1);
-    data.appendPackGUID(invitee);
+    data << invitee.WriteAsPacked();
     data << uint64(invite.GetEventId());
     data << uint64(invite.GetInviteId());
     data << uint8(level);
@@ -474,7 +474,7 @@ void CalendarMgr::SendCalendarEventUpdateAlert(CalendarEvent const& calendarEven
 void CalendarMgr::SendCalendarEventStatus(CalendarEvent const& calendarEvent, CalendarInvite const& invite)
 {
     WorldPacket data(SMSG_CALENDAR_EVENT_STATUS, 8 + 8 + 4 + 4 + 1 + 1 + 4);
-    data.appendPackGUID(invite.GetInviteeGUID());
+    data << invite.GetInviteeGUID().WriteAsPacked();
     data << uint64(calendarEvent.GetEventId());
     data.AppendPackedTime(calendarEvent.GetEventTime());
     data << uint32(calendarEvent.GetFlags());
@@ -498,7 +498,7 @@ void CalendarMgr::SendCalendarEventRemovedAlert(CalendarEvent const& calendarEve
 void CalendarMgr::SendCalendarEventInviteRemove(CalendarEvent const& calendarEvent, CalendarInvite const& invite, uint32 flags)
 {
     WorldPacket data(SMSG_CALENDAR_EVENT_INVITE_REMOVED, 8 + 4 + 4 + 1);
-    data.appendPackGUID(invite.GetInviteeGUID());
+    data << invite.GetInviteeGUID().WriteAsPacked();
     data << uint64(invite.GetEventId());
     data << uint32(flags);
     data << uint8(1); // FIXME
@@ -509,7 +509,7 @@ void CalendarMgr::SendCalendarEventInviteRemove(CalendarEvent const& calendarEve
 void CalendarMgr::SendCalendarEventModeratorStatusAlert(CalendarEvent const& calendarEvent, CalendarInvite const& invite)
 {
     WorldPacket data(SMSG_CALENDAR_EVENT_MODERATOR_STATUS_ALERT, 8 + 8 + 1 + 1);
-    data.appendPackGUID(invite.GetInviteeGUID());
+    data << invite.GetInviteeGUID().WriteAsPacked();
     data << uint64(invite.GetEventId());
     data << uint8(invite.GetRank());
     data << uint8(1); // Unk boolean - Display to client?
@@ -533,8 +533,8 @@ void CalendarMgr::SendCalendarEventInviteAlert(CalendarEvent const& calendarEven
 
     data << uint8(invite.GetStatus());
     data << uint8(invite.GetRank());
-    data.appendPackGUID(calendarEvent.GetCreatorGUID());
-    data.appendPackGUID(invite.GetSenderGUID());
+    data << calendarEvent.GetCreatorGUID().WriteAsPacked();
+    data << invite.GetSenderGUID().WriteAsPacked();
 
     if (calendarEvent.IsGuildEvent() || calendarEvent.IsGuildAnnouncement())
     {
@@ -546,7 +546,7 @@ void CalendarMgr::SendCalendarEventInviteAlert(CalendarEvent const& calendarEven
             player->SendDirectMessage(&data);
 }
 
-void CalendarMgr::SendCalendarEvent(uint64 guid, CalendarEvent const& calendarEvent, CalendarSendEventType sendType)
+void CalendarMgr::SendCalendarEvent(ObjectGuid guid, CalendarEvent const& calendarEvent, CalendarSendEventType sendType)
 {
     Player* player = ObjectAccessor::FindPlayer(guid);
     if (!player)
@@ -556,7 +556,7 @@ void CalendarMgr::SendCalendarEvent(uint64 guid, CalendarEvent const& calendarEv
 
     WorldPacket data(SMSG_CALENDAR_SEND_EVENT, 60 + eventInviteeList.size() * 32);
     data << uint8(sendType);
-    data.appendPackGUID(calendarEvent.GetCreatorGUID());
+    data << calendarEvent.GetCreatorGUID().WriteAsPacked();
     data << uint64(calendarEvent.GetEventId());
     data << calendarEvent.GetTitle();
     data << calendarEvent.GetDescription();
@@ -575,13 +575,13 @@ void CalendarMgr::SendCalendarEvent(uint64 guid, CalendarEvent const& calendarEv
     for (CalendarInviteStore::const_iterator itr = eventInviteeList.begin(); itr != eventInviteeList.end(); ++itr)
     {
         CalendarInvite const* calendarInvite = (*itr);
-        uint64 inviteeGuid = calendarInvite->GetInviteeGUID();
+        ObjectGuid inviteeGuid = calendarInvite->GetInviteeGUID();
         Player* invitee = ObjectAccessor::FindPlayer(inviteeGuid);
 
         uint8 inviteeLevel = invitee ? invitee->getLevel() : Player::GetLevelFromDB(inviteeGuid);
         uint32 inviteeGuildId = invitee ? invitee->GetGuildId() : Player::GetGuildIdFromDB(inviteeGuid);
 
-        data.appendPackGUID(inviteeGuid);
+        data << inviteeGuid.WriteAsPacked();
         data << uint8(inviteeLevel);
         data << uint8(calendarInvite->GetStatus());
         data << uint8(calendarInvite->GetRank());
@@ -594,7 +594,7 @@ void CalendarMgr::SendCalendarEvent(uint64 guid, CalendarEvent const& calendarEv
     player->SendDirectMessage(&data);
 }
 
-void CalendarMgr::SendCalendarEventInviteRemoveAlert(uint64 guid, CalendarEvent const& calendarEvent, CalendarInviteStatus status)
+void CalendarMgr::SendCalendarEventInviteRemoveAlert(ObjectGuid guid, CalendarEvent const& calendarEvent, CalendarInviteStatus status)
 {
     if (Player* player = ObjectAccessor::FindPlayer(guid))
     {
@@ -608,7 +608,7 @@ void CalendarMgr::SendCalendarEventInviteRemoveAlert(uint64 guid, CalendarEvent
     }
 }
 
-void CalendarMgr::SendCalendarClearPendingAction(uint64 guid)
+void CalendarMgr::SendCalendarClearPendingAction(ObjectGuid guid)
 {
     if (Player* player = ObjectAccessor::FindPlayer(guid))
     {
@@ -617,7 +617,7 @@ void CalendarMgr::SendCalendarClearPendingAction(uint64 guid)
     }
 }
 
-void CalendarMgr::SendCalendarCommandResult(uint64 guid, CalendarError err, char const* param /*= NULL*/)
+void CalendarMgr::SendCalendarCommandResult(ObjectGuid guid, CalendarError err, char const* param /*= NULL*/)
 {
     if (Player* player = ObjectAccessor::FindPlayer(guid))
     {
diff --git a/src/server/game/Calendar/CalendarMgr.h b/src/server/game/Calendar/CalendarMgr.h
index cd527a7373e..02b707d5a12 100644
--- a/src/server/game/Calendar/CalendarMgr.h
+++ b/src/server/game/Calendar/CalendarMgr.h
@@ -21,6 +21,7 @@
 #include "Common.h"
 #include "DatabaseEnv.h"
 #include "WorldPacket.h"
+#include "ObjectGuid.h"
 
 enum CalendarMailAnswers
 {
@@ -141,10 +142,10 @@ struct CalendarInvite
             _text = calendarInvite.GetText();
         }
 
-        CalendarInvite() : _inviteId(1), _eventId(0), _invitee(0), _senderGUID(0), _statusTime(time(NULL)),
+        CalendarInvite() : _inviteId(1), _eventId(0), _invitee(), _senderGUID(), _statusTime(time(NULL)),
             _status(CALENDAR_STATUS_INVITED), _rank(CALENDAR_RANK_PLAYER), _text("") { }
 
-        CalendarInvite(uint64 inviteId, uint64 eventId, uint64 invitee, uint64 senderGUID, time_t statusTime,
+        CalendarInvite(uint64 inviteId, uint64 eventId, ObjectGuid invitee, ObjectGuid senderGUID, time_t statusTime,
             CalendarInviteStatus status, CalendarModerationRank rank, std::string text) :
             _inviteId(inviteId), _eventId(eventId), _invitee(invitee), _senderGUID(senderGUID), _statusTime(statusTime),
             _status(status), _rank(rank), _text(text) { }
@@ -157,11 +158,11 @@ struct CalendarInvite
         void SetEventId(uint64 eventId) { _eventId = eventId; }
         uint64 GetEventId() const { return _eventId; }
 
-        void SetSenderGUID(uint64 guid) { _senderGUID = guid; }
-        uint64 GetSenderGUID() const { return _senderGUID; }
+        void SetSenderGUID(ObjectGuid guid) { _senderGUID = guid; }
+        ObjectGuid GetSenderGUID() const { return _senderGUID; }
 
-        void SetInvitee(uint64 guid) { _invitee = guid; }
-        uint64 GetInviteeGUID() const { return _invitee; }
+        void SetInvitee(ObjectGuid guid) { _invitee = guid; }
+        ObjectGuid GetInviteeGUID() const { return _invitee; }
 
         void SetStatusTime(time_t statusTime) { _statusTime = statusTime; }
         time_t GetStatusTime() const { return _statusTime; }
@@ -178,8 +179,8 @@ struct CalendarInvite
     private:
         uint64 _inviteId;
         uint64 _eventId;
-        uint64 _invitee;
-        uint64 _senderGUID;
+        ObjectGuid _invitee;
+        ObjectGuid _senderGUID;
         time_t _statusTime;
         CalendarInviteStatus _status;
         CalendarModerationRank _rank;
@@ -203,13 +204,13 @@ struct CalendarEvent
             _description = calendarEvent.GetDescription();
         }
 
-        CalendarEvent(uint64 eventId, uint64 creatorGUID, uint32 guildId, CalendarEventType type, int32 dungeonId,
+        CalendarEvent(uint64 eventId, ObjectGuid creatorGUID, uint32 guildId, CalendarEventType type, int32 dungeonId,
             time_t eventTime, uint32 flags, time_t timezoneTime, std::string title, std::string description) :
             _eventId(eventId), _creatorGUID(creatorGUID), _guildId(guildId), _type(type), _dungeonId(dungeonId),
             _eventTime(eventTime), _flags(flags), _timezoneTime(timezoneTime), _title(title),
             _description(description) { }
 
-        CalendarEvent() : _eventId(1), _creatorGUID(0), _guildId(0), _type(CALENDAR_TYPE_OTHER), _dungeonId(-1), _eventTime(0),
+        CalendarEvent() : _eventId(1), _creatorGUID(), _guildId(0), _type(CALENDAR_TYPE_OTHER), _dungeonId(-1), _eventTime(0),
             _flags(0), _timezoneTime(0), _title(""), _description("") { }
 
         ~CalendarEvent();
@@ -217,8 +218,8 @@ struct CalendarEvent
         void SetEventId(uint64 eventId) { _eventId = eventId; }
         uint64 GetEventId() const { return _eventId; }
 
-        void SetCreatorGUID(uint64 guid) { _creatorGUID = guid; }
-        uint64 GetCreatorGUID() const { return _creatorGUID; }
+        void SetCreatorGUID(ObjectGuid guid) { _creatorGUID = guid; }
+        ObjectGuid GetCreatorGUID() const { return _creatorGUID; }
 
         void SetGuildId(uint32 guildId) { _guildId = guildId; }
         uint32 GetGuildId() const { return _guildId; }
@@ -247,12 +248,12 @@ struct CalendarEvent
         bool IsGuildEvent() const { return (_flags & CALENDAR_FLAG_GUILD_EVENT) != 0; }
         bool IsGuildAnnouncement() const { return (_flags & CALENDAR_FLAG_WITHOUT_INVITES) != 0; }
 
-        std::string BuildCalendarMailSubject(uint64 remover) const;
+        std::string BuildCalendarMailSubject(ObjectGuid remover) const;
         std::string BuildCalendarMailBody() const;
 
     private:
         uint64 _eventId;
-        uint64 _creatorGUID;
+        ObjectGuid _creatorGUID;
         uint32 _guildId;
         CalendarEventType _type;
         int32 _dungeonId;
@@ -291,44 +292,44 @@ class CalendarMgr
 
         CalendarEvent* GetEvent(uint64 eventId) const;
         CalendarEventStore const& GetEvents() const { return _events; }
-        CalendarEventStore GetPlayerEvents(uint64 guid);
+        CalendarEventStore GetPlayerEvents(ObjectGuid guid);
 
         CalendarInvite* GetInvite(uint64 inviteId) const;
         CalendarEventInviteStore const& GetInvites() const { return _invites; }
         CalendarInviteStore const& GetEventInvites(uint64 eventId);
-        CalendarInviteStore GetPlayerInvites(uint64 guid);
+        CalendarInviteStore GetPlayerInvites(ObjectGuid guid);
 
         void FreeEventId(uint64 id);
         uint64 GetFreeEventId();
         void FreeInviteId(uint64 id);
         uint64 GetFreeInviteId();
 
-        uint32 GetPlayerNumPending(uint64 guid);
+        uint32 GetPlayerNumPending(ObjectGuid guid);
 
         void AddEvent(CalendarEvent* calendarEvent, CalendarSendEventType sendType);
-        void RemoveEvent(uint64 eventId, uint64 remover);
+        void RemoveEvent(uint64 eventId, ObjectGuid remover);
         void UpdateEvent(CalendarEvent* calendarEvent);
 
         void AddInvite(CalendarEvent* calendarEvent, CalendarInvite* invite);
         void AddInvite(CalendarEvent* calendarEvent, CalendarInvite* invite, SQLTransaction& trans);
-        void RemoveInvite(uint64 inviteId, uint64 eventId, uint64 remover);
+        void RemoveInvite(uint64 inviteId, uint64 eventId, ObjectGuid remover);
         void UpdateInvite(CalendarInvite* invite);
         void UpdateInvite(CalendarInvite* invite, SQLTransaction& trans);
 
-        void RemoveAllPlayerEventsAndInvites(uint64 guid);
-        void RemovePlayerGuildEventsAndSignups(uint64 guid, uint32 guildId);
+        void RemoveAllPlayerEventsAndInvites(ObjectGuid guid);
+        void RemovePlayerGuildEventsAndSignups(ObjectGuid guid, uint32 guildId);
 
-        void SendCalendarEvent(uint64 guid, CalendarEvent const& calendarEvent, CalendarSendEventType sendType);
+        void SendCalendarEvent(ObjectGuid guid, CalendarEvent const& calendarEvent, CalendarSendEventType sendType);
         void SendCalendarEventInvite(CalendarInvite const& invite);
         void SendCalendarEventInviteAlert(CalendarEvent const& calendarEvent, CalendarInvite const& invite);
         void SendCalendarEventInviteRemove(CalendarEvent const& calendarEvent, CalendarInvite const& invite, uint32 flags);
-        void SendCalendarEventInviteRemoveAlert(uint64 guid, CalendarEvent const& calendarEvent, CalendarInviteStatus status);
+        void SendCalendarEventInviteRemoveAlert(ObjectGuid guid, CalendarEvent const& calendarEvent, CalendarInviteStatus status);
         void SendCalendarEventUpdateAlert(CalendarEvent const& calendarEvent, time_t oldEventTime);
         void SendCalendarEventStatus(CalendarEvent const& calendarEvent, CalendarInvite const& invite);
         void SendCalendarEventRemovedAlert(CalendarEvent const& calendarEvent);
         void SendCalendarEventModeratorStatusAlert(CalendarEvent const& calendarEvent, CalendarInvite const& invite);
-        void SendCalendarClearPendingAction(uint64 guid);
-        void SendCalendarCommandResult(uint64 guid, CalendarError err, char const* param = NULL);
+        void SendCalendarClearPendingAction(ObjectGuid guid);
+        void SendCalendarCommandResult(ObjectGuid guid, CalendarError err, char const* param = NULL);
 
         void SendPacketToAllEventRelatives(WorldPacket& packet, CalendarEvent const& calendarEvent);
 };
diff --git a/src/server/game/Chat/Channels/Channel.cpp b/src/server/game/Chat/Channels/Channel.cpp
index 3f6a40d825d..654ce8da2b9 100644
--- a/src/server/game/Chat/Channels/Channel.cpp
+++ b/src/server/game/Chat/Channels/Channel.cpp
@@ -32,7 +32,7 @@ Channel::Channel(std::string const& name, uint32 channelId, uint32 team):
     _flags(0),
     _channelId(channelId),
     _Team(team),
-    _ownerGUID(0),
+    _ownerGUID(),
     _name(name),
     _password("")
 {
@@ -80,10 +80,10 @@ Channel::Channel(std::string const& name, uint32 channelId, uint32 team):
                     Tokenizer tokens(db_BannedList, ' ');
                     for (Tokenizer::const_iterator i = tokens.begin(); i != tokens.end(); ++i)
                     {
-                        uint64 banned_guid = atol(*i);
+                        ObjectGuid banned_guid(uint64(strtoull(*i, NULL, 10)));
                         if (banned_guid)
                         {
-                            TC_LOG_DEBUG("chat.system", "Channel(%s) loaded bannedStore guid:" UI64FMTD "", name.c_str(), banned_guid);
+                            TC_LOG_DEBUG("chat.system", "Channel(%s) loaded bannedStore %s", name.c_str(), banned_guid.ToString().c_str());
                             bannedStore.insert(banned_guid);
                         }
                     }
@@ -110,7 +110,7 @@ void Channel::UpdateChannelInDB() const
         std::ostringstream banlist;
         BannedContainer::const_iterator iter;
         for (iter = bannedStore.begin(); iter != bannedStore.end(); ++iter)
-            banlist << (*iter) << ' ';
+            banlist << iter->GetRawValue() << ' ';
 
         std::string banListStr = banlist.str();
 
@@ -149,7 +149,7 @@ void Channel::CleanOldChannelsInDB()
 
 void Channel::JoinChannel(Player* player, std::string const& pass)
 {
-    uint64 guid = player->GetGUID();
+    ObjectGuid guid = player->GetGUID();
     if (IsOn(guid))
     {
         // Do not send error message for built-in channels
@@ -227,7 +227,7 @@ void Channel::JoinChannel(Player* player, std::string const& pass)
 
 void Channel::LeaveChannel(Player* player, bool send)
 {
-    uint64 guid = player->GetGUID();
+    ObjectGuid guid = player->GetGUID();
     if (!IsOn(guid))
     {
         if (send)
@@ -269,7 +269,7 @@ void Channel::LeaveChannel(Player* player, bool send)
         // If the channel owner left and there are still playersStore inside, pick a new owner
         if (changeowner && _ownership && !playersStore.empty())
         {
-            uint64 newowner = playersStore.begin()->second.player;
+            ObjectGuid newowner = playersStore.begin()->second.player;
             playersStore[newowner].SetModerator(true);
             SetOwner(newowner);
         }
@@ -278,7 +278,7 @@ void Channel::LeaveChannel(Player* player, bool send)
 
 void Channel::KickOrBan(Player const* player, std::string const& badname, bool ban)
 {
-    uint64 good = player->GetGUID();
+    ObjectGuid good = player->GetGUID();
 
     if (!IsOn(good))
     {
@@ -297,7 +297,7 @@ void Channel::KickOrBan(Player const* player, std::string const& badname, bool b
     }
 
     Player* bad = sObjectAccessor->FindPlayerByName(badname);
-    uint64 victim = bad ? bad->GetGUID() : 0;
+    ObjectGuid victim = bad ? bad->GetGUID() : ObjectGuid::Empty;
     if (!victim || !IsOn(victim))
     {
         WorldPacket data;
@@ -340,7 +340,7 @@ void Channel::KickOrBan(Player const* player, std::string const& badname, bool b
 
     if (changeowner && _ownership && !playersStore.empty())
     {
-        uint64 newowner = good;
+        ObjectGuid newowner = good;
         playersStore[newowner].SetModerator(true);
         SetOwner(newowner);
     }
@@ -348,7 +348,7 @@ void Channel::KickOrBan(Player const* player, std::string const& badname, bool b
 
 void Channel::UnBan(Player const* player, std::string const& badname)
 {
-    uint64 good = player->GetGUID();
+    ObjectGuid good = player->GetGUID();
 
     if (!IsOn(good))
     {
@@ -367,7 +367,7 @@ void Channel::UnBan(Player const* player, std::string const& badname)
     }
 
     Player* bad = sObjectAccessor->FindPlayerByName(badname);
-    uint64 victim = bad ? bad->GetGUID(): 0;
+    ObjectGuid victim = bad ? bad->GetGUID() : ObjectGuid::Empty;
 
     if (!victim || !IsBanned(victim))
     {
@@ -388,7 +388,7 @@ void Channel::UnBan(Player const* player, std::string const& badname)
 
 void Channel::Password(Player const* player, std::string const& pass)
 {
-    uint64 guid = player->GetGUID();
+    ObjectGuid guid = player->GetGUID();
 
     ChatHandler chat(player->GetSession());
     if (!IsOn(guid))
@@ -418,7 +418,7 @@ void Channel::Password(Player const* player, std::string const& pass)
 
 void Channel::SetMode(Player const* player, std::string const& p2n, bool mod, bool set)
 {
-    uint64 guid = player->GetGUID();
+    ObjectGuid guid = player->GetGUID();
 
     if (!IsOn(guid))
     {
@@ -440,7 +440,7 @@ void Channel::SetMode(Player const* player, std::string const& p2n, bool mod, bo
         return;
 
     Player* newp = sObjectAccessor->FindPlayerByName(p2n);
-    uint64 victim = newp ? newp->GetGUID() : 0;
+    ObjectGuid victim = newp ? newp->GetGUID() : ObjectGuid::Empty;
 
     if (!victim || !IsOn(victim) ||
         (player->GetTeam() != newp->GetTeam() &&
@@ -469,7 +469,7 @@ void Channel::SetMode(Player const* player, std::string const& p2n, bool mod, bo
 
 void Channel::SetOwner(Player const* player, std::string const& newname)
 {
-    uint64 guid = player->GetGUID();
+    ObjectGuid guid = player->GetGUID();
 
     if (!IsOn(guid))
     {
@@ -488,7 +488,7 @@ void Channel::SetOwner(Player const* player, std::string const& newname)
     }
 
     Player* newp = sObjectAccessor->FindPlayerByName(newname);
-    uint64 victim = newp ? newp->GetGUID() : 0;
+    ObjectGuid victim = newp ? newp->GetGUID() : ObjectGuid::Empty;
 
     if (!victim || !IsOn(victim) ||
         (player->GetTeam() != newp->GetTeam() &&
@@ -505,7 +505,7 @@ void Channel::SetOwner(Player const* player, std::string const& newname)
     SetOwner(victim);
 }
 
-void Channel::SendWhoOwner(uint64 guid)
+void Channel::SendWhoOwner(ObjectGuid guid)
 {
     WorldPacket data;
     if (IsOn(guid))
@@ -517,7 +517,7 @@ void Channel::SendWhoOwner(uint64 guid)
 
 void Channel::List(Player const* player)
 {
-    uint64 guid = player->GetGUID();
+    ObjectGuid guid = player->GetGUID();
 
     if (!IsOn(guid))
     {
@@ -565,7 +565,7 @@ void Channel::List(Player const* player)
 
 void Channel::Announce(Player const* player)
 {
-    uint64 guid = player->GetGUID();
+    ObjectGuid guid = player->GetGUID();
 
     if (!IsOn(guid))
     {
@@ -595,7 +595,7 @@ void Channel::Announce(Player const* player)
     UpdateChannelInDB();
 }
 
-void Channel::Say(uint64 guid, std::string const& what, uint32 lang)
+void Channel::Say(ObjectGuid guid, std::string const& what, uint32 lang)
 {
     if (what.empty())
         return;
@@ -626,12 +626,12 @@ void Channel::Say(uint64 guid, std::string const& what, uint32 lang)
     else
         ChatHandler::BuildChatPacket(data, CHAT_MSG_CHANNEL, Language(lang), guid, guid, what, 0, "", "", 0, false, _name);
 
-    SendToAll(&data, !playersStore[guid].IsModerator() ? guid : false);
+    SendToAll(&data, !playersStore[guid].IsModerator() ? guid : ObjectGuid::Empty);
 }
 
 void Channel::Invite(Player const* player, std::string const& newname)
 {
-    uint64 guid = player->GetGUID();
+    ObjectGuid guid = player->GetGUID();
 
     if (!IsOn(guid))
     {
@@ -676,7 +676,7 @@ void Channel::Invite(Player const* player, std::string const& newname)
         return;
     }
 
-    if (!newp->GetSocial()->HasIgnore(GUID_LOPART(guid)))
+    if (!newp->GetSocial()->HasIgnore(guid.GetCounter()))
     {
         WorldPacket data;
         MakeInvite(&data, guid);
@@ -689,7 +689,7 @@ void Channel::Invite(Player const* player, std::string const& newname)
     SendToOne(&data, guid);
 }
 
-void Channel::SetOwner(uint64 guid, bool exclaim)
+void Channel::SetOwner(ObjectGuid guid, bool exclaim)
 {
     if (_ownerGUID)
     {
@@ -720,15 +720,15 @@ void Channel::SetOwner(uint64 guid, bool exclaim)
     }
 }
 
-void Channel::SendToAll(WorldPacket* data, uint64 guid)
+void Channel::SendToAll(WorldPacket* data, ObjectGuid guid)
 {
     for (PlayerContainer::const_iterator i = playersStore.begin(); i != playersStore.end(); ++i)
         if (Player* player = ObjectAccessor::FindPlayer(i->first))
-            if (!guid || !player->GetSocial()->HasIgnore(GUID_LOPART(guid)))
+            if (!guid || !player->GetSocial()->HasIgnore(guid.GetCounter()))
                 player->GetSession()->SendPacket(data);
 }
 
-void Channel::SendToAllButOne(WorldPacket* data, uint64 who)
+void Channel::SendToAllButOne(WorldPacket* data, ObjectGuid who)
 {
     for (PlayerContainer::const_iterator i = playersStore.begin(); i != playersStore.end(); ++i)
         if (i->first != who)
@@ -736,18 +736,18 @@ void Channel::SendToAllButOne(WorldPacket* data, uint64 who)
                 player->GetSession()->SendPacket(data);
 }
 
-void Channel::SendToOne(WorldPacket* data, uint64 who)
+void Channel::SendToOne(WorldPacket* data, ObjectGuid who)
 {
     if (Player* player = ObjectAccessor::FindPlayer(who))
         player->GetSession()->SendPacket(data);
 }
 
-void Channel::Voice(uint64 /*guid1*/, uint64 /*guid2*/)
+void Channel::Voice(ObjectGuid /*guid1*/, ObjectGuid /*guid2*/)
 {
 
 }
 
-void Channel::DeVoice(uint64 /*guid1*/, uint64 /*guid2*/)
+void Channel::DeVoice(ObjectGuid /*guid1*/, ObjectGuid /*guid2*/)
 {
 
 }
@@ -759,13 +759,13 @@ void Channel::MakeNotifyPacket(WorldPacket* data, uint8 notify_type)
     *data << _name;
 }
 
-void Channel::MakeJoined(WorldPacket* data, uint64 guid)
+void Channel::MakeJoined(WorldPacket* data, ObjectGuid guid)
 {
     MakeNotifyPacket(data, CHAT_JOINED_NOTICE);
     *data << uint64(guid);
 }
 
-void Channel::MakeLeft(WorldPacket* data, uint64 guid)
+void Channel::MakeLeft(WorldPacket* data, ObjectGuid guid)
 {
     MakeNotifyPacket(data, CHAT_LEFT_NOTICE);
     *data << uint64(guid);
@@ -801,13 +801,13 @@ void Channel::MakeNotModerator(WorldPacket* data)
     MakeNotifyPacket(data, CHAT_NOT_MODERATOR_NOTICE);
 }
 
-void Channel::MakePasswordChanged(WorldPacket* data, uint64 guid)
+void Channel::MakePasswordChanged(WorldPacket* data, ObjectGuid guid)
 {
     MakeNotifyPacket(data, CHAT_PASSWORD_CHANGED_NOTICE);
     *data << uint64(guid);
 }
 
-void Channel::MakeOwnerChanged(WorldPacket* data, uint64 guid)
+void Channel::MakeOwnerChanged(WorldPacket* data, ObjectGuid guid)
 {
     MakeNotifyPacket(data, CHAT_OWNER_CHANGED_NOTICE);
     *data << uint64(guid);
@@ -835,7 +835,7 @@ void Channel::MakeChannelOwner(WorldPacket* data)
     *data << ((IsConstant() || !_ownerGUID) ? "Nobody" : name);
 }
 
-void Channel::MakeModeChange(WorldPacket* data, uint64 guid, uint8 oldflags)
+void Channel::MakeModeChange(WorldPacket* data, ObjectGuid guid, uint8 oldflags)
 {
     MakeNotifyPacket(data, CHAT_MODE_CHANGE_NOTICE);
     *data << uint64(guid);
@@ -843,13 +843,13 @@ void Channel::MakeModeChange(WorldPacket* data, uint64 guid, uint8 oldflags)
     *data << uint8(GetPlayerFlags(guid));
 }
 
-void Channel::MakeAnnouncementsOn(WorldPacket* data, uint64 guid)
+void Channel::MakeAnnouncementsOn(WorldPacket* data, ObjectGuid guid)
 {
     MakeNotifyPacket(data, CHAT_ANNOUNCEMENTS_ON_NOTICE);
     *data << uint64(guid);
 }
 
-void Channel::MakeAnnouncementsOff(WorldPacket* data, uint64 guid)
+void Channel::MakeAnnouncementsOff(WorldPacket* data, ObjectGuid guid)
 {
     MakeNotifyPacket(data, CHAT_ANNOUNCEMENTS_OFF_NOTICE);
     *data << uint64(guid);
@@ -860,7 +860,7 @@ void Channel::MakeMuted(WorldPacket* data)
     MakeNotifyPacket(data, CHAT_MUTED_NOTICE);
 }
 
-void Channel::MakePlayerKicked(WorldPacket* data, uint64 bad, uint64 good)
+void Channel::MakePlayerKicked(WorldPacket* data, ObjectGuid bad, ObjectGuid good)
 {
     MakeNotifyPacket(data, CHAT_PLAYER_KICKED_NOTICE);
     *data << uint64(bad);
@@ -872,14 +872,14 @@ void Channel::MakeBanned(WorldPacket* data)
     MakeNotifyPacket(data, CHAT_BANNED_NOTICE);
 }
 
-void Channel::MakePlayerBanned(WorldPacket* data, uint64 bad, uint64 good)
+void Channel::MakePlayerBanned(WorldPacket* data, ObjectGuid bad, ObjectGuid good)
 {
     MakeNotifyPacket(data, CHAT_PLAYER_BANNED_NOTICE);
     *data << uint64(bad);
     *data << uint64(good);
 }
 
-void Channel::MakePlayerUnbanned(WorldPacket* data, uint64 bad, uint64 good)
+void Channel::MakePlayerUnbanned(WorldPacket* data, ObjectGuid bad, ObjectGuid good)
 {
     MakeNotifyPacket(data, CHAT_PLAYER_UNBANNED_NOTICE);
     *data << uint64(bad);
@@ -892,13 +892,13 @@ void Channel::MakePlayerNotBanned(WorldPacket* data, const std::string &name)
     *data << name;
 }
 
-void Channel::MakePlayerAlreadyMember(WorldPacket* data, uint64 guid)
+void Channel::MakePlayerAlreadyMember(WorldPacket* data, ObjectGuid guid)
 {
     MakeNotifyPacket(data, CHAT_PLAYER_ALREADY_MEMBER_NOTICE);
     *data << uint64(guid);
 }
 
-void Channel::MakeInvite(WorldPacket* data, uint64 guid)
+void Channel::MakeInvite(WorldPacket* data, ObjectGuid guid)
 {
     MakeNotifyPacket(data, CHAT_INVITE_NOTICE);
     *data << uint64(guid);
@@ -951,19 +951,19 @@ void Channel::MakeNotInLfg(WorldPacket* data)
     MakeNotifyPacket(data, CHAT_NOT_IN_LFG_NOTICE);
 }
 
-void Channel::MakeVoiceOn(WorldPacket* data, uint64 guid)
+void Channel::MakeVoiceOn(WorldPacket* data, ObjectGuid guid)
 {
     MakeNotifyPacket(data, CHAT_VOICE_ON_NOTICE);
     *data << uint64(guid);
 }
 
-void Channel::MakeVoiceOff(WorldPacket* data, uint64 guid)
+void Channel::MakeVoiceOff(WorldPacket* data, ObjectGuid guid)
 {
     MakeNotifyPacket(data, CHAT_VOICE_OFF_NOTICE);
     *data << uint64(guid);
 }
 
-void Channel::JoinNotify(uint64 guid)
+void Channel::JoinNotify(ObjectGuid guid)
 {
     WorldPacket data(IsConstant() ? SMSG_USERLIST_ADD : SMSG_USERLIST_UPDATE, 8 + 1 + 1 + 4 + GetName().size());
     data << uint64(guid);
@@ -978,7 +978,7 @@ void Channel::JoinNotify(uint64 guid)
         SendToAll(&data);
 }
 
-void Channel::LeaveNotify(uint64 guid)
+void Channel::LeaveNotify(ObjectGuid guid)
 {
     WorldPacket data(SMSG_USERLIST_REMOVE, 8 + 1 + 4 + GetName().size());
     data << uint64(guid);
diff --git a/src/server/game/Chat/Channels/Channel.h b/src/server/game/Chat/Channels/Channel.h
index 877c1e826c9..6489c8b47ad 100644
--- a/src/server/game/Chat/Channels/Channel.h
+++ b/src/server/game/Chat/Channels/Channel.h
@@ -122,7 +122,7 @@ class Channel
 {
     struct PlayerInfo
     {
-        uint64 player;
+        ObjectGuid player;
         uint8 flags;
 
         bool HasFlag(uint8 flag) const { return (flags & flag) != 0; }
@@ -169,21 +169,21 @@ class Channel
         void UnBan(Player const* player, std::string const& badname);
         void Password(Player const* player, std::string const& pass);
         void SetMode(Player const* player, std::string const& p2n, bool mod, bool set);
-        void SetOwner(uint64 guid, bool exclaim = true);
+        void SetOwner(ObjectGuid guid, bool exclaim = true);
         void SetOwner(Player const* player, std::string const& name);
-        void SendWhoOwner(uint64 guid);
+        void SendWhoOwner(ObjectGuid guid);
         void SetModerator(Player const* player, std::string const& newname) { SetMode(player, newname, true, true); }
         void UnsetModerator(Player const* player, std::string const& newname) { SetMode(player, newname, true, false); }
         void SetMute(Player const* player, std::string const& newname) { SetMode(player, newname, false, true); }
         void UnsetMute(Player const* player, std::string const& newname) { SetMode(player, newname, false, false); }
         void List(Player const* player);
         void Announce(Player const* player);
-        void Say(uint64 guid, std::string const& what, uint32 lang);
+        void Say(ObjectGuid guid, std::string const& what, uint32 lang);
         void Invite(Player const* player, std::string const& newp);
-        void Voice(uint64 guid1, uint64 guid2);
-        void DeVoice(uint64 guid1, uint64 guid2);
-        void JoinNotify(uint64 guid);                                           // invisible notify
-        void LeaveNotify(uint64 guid);                                          // invisible notify
+        void Voice(ObjectGuid guid1, ObjectGuid guid2);
+        void DeVoice(ObjectGuid guid1, ObjectGuid guid2);
+        void JoinNotify(ObjectGuid guid);                                       // invisible notify
+        void LeaveNotify(ObjectGuid guid);                                      // invisible notify
         void SetOwnership(bool ownership) { _ownership = ownership; };
         static void CleanOldChannelsInDB();
 
@@ -191,29 +191,29 @@ class Channel
         // initial packet data (notify type and channel name)
         void MakeNotifyPacket(WorldPacket* data, uint8 notify_type);
         // type specific packet data
-        void MakeJoined(WorldPacket* data, uint64 guid);                        //+ 0x00
-        void MakeLeft(WorldPacket* data, uint64 guid);                          //+ 0x01
+        void MakeJoined(WorldPacket* data, ObjectGuid guid);                    //+ 0x00
+        void MakeLeft(WorldPacket* data, ObjectGuid guid);                      //+ 0x01
         void MakeYouJoined(WorldPacket* data);                                  //+ 0x02
         void MakeYouLeft(WorldPacket* data);                                    //+ 0x03
         void MakeWrongPassword(WorldPacket* data);                              //? 0x04
         void MakeNotMember(WorldPacket* data);                                  //? 0x05
         void MakeNotModerator(WorldPacket* data);                               //? 0x06
-        void MakePasswordChanged(WorldPacket* data, uint64 guid);               //+ 0x07
-        void MakeOwnerChanged(WorldPacket* data, uint64 guid);                  //? 0x08
-        void MakePlayerNotFound(WorldPacket* data, std::string const& name);   //+ 0x09
+        void MakePasswordChanged(WorldPacket* data, ObjectGuid guid);           //+ 0x07
+        void MakeOwnerChanged(WorldPacket* data, ObjectGuid guid);              //? 0x08
+        void MakePlayerNotFound(WorldPacket* data, std::string const& name);    //+ 0x09
         void MakeNotOwner(WorldPacket* data);                                   //? 0x0A
         void MakeChannelOwner(WorldPacket* data);                               //? 0x0B
-        void MakeModeChange(WorldPacket* data, uint64 guid, uint8 oldflags);    //+ 0x0C
-        void MakeAnnouncementsOn(WorldPacket* data, uint64 guid);               //+ 0x0D
-        void MakeAnnouncementsOff(WorldPacket* data, uint64 guid);              //+ 0x0E
+        void MakeModeChange(WorldPacket* data, ObjectGuid guid, uint8 oldflags);//+ 0x0C
+        void MakeAnnouncementsOn(WorldPacket* data, ObjectGuid guid);           //+ 0x0D
+        void MakeAnnouncementsOff(WorldPacket* data, ObjectGuid guid);          //+ 0x0E
         void MakeMuted(WorldPacket* data);                                      //? 0x11
-        void MakePlayerKicked(WorldPacket* data, uint64 bad, uint64 good);      //? 0x12
+        void MakePlayerKicked(WorldPacket* data, ObjectGuid bad, ObjectGuid good);//? 0x12
         void MakeBanned(WorldPacket* data);                                     //? 0x13
-        void MakePlayerBanned(WorldPacket* data, uint64 bad, uint64 good);      //? 0x14
-        void MakePlayerUnbanned(WorldPacket* data, uint64 bad, uint64 good);    //? 0x15
-        void MakePlayerNotBanned(WorldPacket* data, std::string const& name);  //? 0x16
-        void MakePlayerAlreadyMember(WorldPacket* data, uint64 guid);           //+ 0x17
-        void MakeInvite(WorldPacket* data, uint64 guid);                        //? 0x18
+        void MakePlayerBanned(WorldPacket* data, ObjectGuid bad, ObjectGuid good);//? 0x14
+        void MakePlayerUnbanned(WorldPacket* data, ObjectGuid bad, ObjectGuid good);//? 0x15
+        void MakePlayerNotBanned(WorldPacket* data, std::string const& name);   //? 0x16
+        void MakePlayerAlreadyMember(WorldPacket* data, ObjectGuid guid);       //+ 0x17
+        void MakeInvite(WorldPacket* data, ObjectGuid guid);                    //? 0x18
         void MakeInviteWrongFaction(WorldPacket* data);                         //? 0x19
         void MakeWrongFaction(WorldPacket* data);                               //? 0x1A
         void MakeInvalidName(WorldPacket* data);                                //? 0x1B
@@ -223,26 +223,26 @@ class Channel
         void MakeThrottled(WorldPacket* data);                                  //? 0x1F
         void MakeNotInArea(WorldPacket* data);                                  //? 0x20
         void MakeNotInLfg(WorldPacket* data);                                   //? 0x21
-        void MakeVoiceOn(WorldPacket* data, uint64 guid);                       //+ 0x22
-        void MakeVoiceOff(WorldPacket* data, uint64 guid);                      //+ 0x23
+        void MakeVoiceOn(WorldPacket* data, ObjectGuid guid);                   //+ 0x22
+        void MakeVoiceOff(WorldPacket* data, ObjectGuid guid);                  //+ 0x23
 
-        void SendToAll(WorldPacket* data, uint64 guid = 0);
-        void SendToAllButOne(WorldPacket* data, uint64 who);
-        void SendToOne(WorldPacket* data, uint64 who);
+        void SendToAll(WorldPacket* data, ObjectGuid guid = ObjectGuid::Empty);
+        void SendToAllButOne(WorldPacket* data, ObjectGuid who);
+        void SendToOne(WorldPacket* data, ObjectGuid who);
 
-        bool IsOn(uint64 who) const { return playersStore.find(who) != playersStore.end(); }
-        bool IsBanned(uint64 guid) const { return bannedStore.find(guid) != bannedStore.end(); }
+        bool IsOn(ObjectGuid who) const { return playersStore.find(who) != playersStore.end(); }
+        bool IsBanned(ObjectGuid guid) const { return bannedStore.find(guid) != bannedStore.end(); }
 
         void UpdateChannelInDB() const;
         void UpdateChannelUseageInDB() const;
 
-        uint8 GetPlayerFlags(uint64 guid) const
+        uint8 GetPlayerFlags(ObjectGuid guid) const
         {
             PlayerContainer::const_iterator itr = playersStore.find(guid);
             return itr != playersStore.end() ? itr->second.flags : 0;
         }
 
-        void SetModerator(uint64 guid, bool set)
+        void SetModerator(ObjectGuid guid, bool set)
         {
             if (playersStore[guid].IsModerator() != set)
             {
@@ -255,7 +255,7 @@ class Channel
             }
         }
 
-        void SetMute(uint64 guid, bool set)
+        void SetMute(ObjectGuid guid, bool set)
         {
             if (playersStore[guid].IsMuted() != set)
             {
@@ -268,8 +268,8 @@ class Channel
             }
         }
 
-        typedef std::map<uint64, PlayerInfo> PlayerContainer;
-        typedef std::set<uint64> BannedContainer;
+        typedef std::map<ObjectGuid, PlayerInfo> PlayerContainer;
+        typedef GuidSet BannedContainer;
 
         bool _announce;
         bool _ownership;
@@ -277,7 +277,7 @@ class Channel
         uint8 _flags;
         uint32 _channelId;
         uint32 _Team;
-        uint64 _ownerGUID;
+        ObjectGuid _ownerGUID;
         std::string _name;
         std::string _password;
         PlayerContainer playersStore;
diff --git a/src/server/game/Chat/Chat.cpp b/src/server/game/Chat/Chat.cpp
index be2d0ecb726..ace13989efb 100644
--- a/src/server/game/Chat/Chat.cpp
+++ b/src/server/game/Chat/Chat.cpp
@@ -104,7 +104,7 @@ ChatCommand* ChatHandler::getCommandTable()
     return commandTableCache;
 }
 
-std::string ChatHandler::PGetParseString(int32 entry, ...) const
+std::string ChatHandler::PGetParseString(uint32 entry, ...) const
 {
     const char *format = GetTrinityString(entry);
     char str[1024];
@@ -115,7 +115,7 @@ std::string ChatHandler::PGetParseString(int32 entry, ...) const
     return std::string(str);
 }
 
-const char *ChatHandler::GetTrinityString(int32 entry) const
+char const* ChatHandler::GetTrinityString(uint32 entry) const
 {
     return m_session->GetTrinityString(entry);
 }
@@ -125,7 +125,7 @@ bool ChatHandler::isAvailable(ChatCommand const& cmd) const
     return HasPermission(cmd.Permission);
 }
 
-bool ChatHandler::HasLowerSecurity(Player* target, uint64 guid, bool strong)
+bool ChatHandler::HasLowerSecurity(Player* target, ObjectGuid guid, bool strong)
 {
     WorldSession* target_session = NULL;
     uint32 target_account = 0;
@@ -253,12 +253,12 @@ void ChatHandler::SendGlobalGMSysMessage(const char *str)
     free(buf);
 }
 
-void ChatHandler::SendSysMessage(int32 entry)
+void ChatHandler::SendSysMessage(uint32 entry)
 {
     SendSysMessage(GetTrinityString(entry));
 }
 
-void ChatHandler::PSendSysMessage(int32 entry, ...)
+void ChatHandler::PSendSysMessage(uint32 entry, ...)
 {
     const char *format = GetTrinityString(entry);
     va_list ap;
@@ -345,7 +345,7 @@ bool ChatHandler::ExecuteCommandInTable(ChatCommand* table, const char* text, st
             Player* player = m_session->GetPlayer();
             if (!AccountMgr::IsPlayerAccount(m_session->GetSecurity()))
             {
-                uint64 guid = player->GetTarget();
+                ObjectGuid guid = player->GetTarget();
                 uint32 areaId = player->GetAreaId();
                 std::string areaName = "Unknown";
                 std::string zoneName = "Unknown";
@@ -356,14 +356,14 @@ bool ChatHandler::ExecuteCommandInTable(ChatCommand* table, const char* text, st
                         zoneName = zone->area_name;
                 }
 
-                sLog->outCommand(m_session->GetAccountId(), "Command: %s [Player: %s (Guid: %u) (Account: %u) X: %f Y: %f Z: %f Map: %u (%s) Area: %u (%s) Zone: %s Selected %s: %s (GUID: %u)]",
-                    fullcmd.c_str(), player->GetName().c_str(), GUID_LOPART(player->GetGUID()),
+                sLog->outCommand(m_session->GetAccountId(), "Command: %s [Player: %s (%s) (Account: %u) X: %f Y: %f Z: %f Map: %u (%s) Area: %u (%s) Zone: %s Selected: %s (%s)]",
+                    fullcmd.c_str(), player->GetName().c_str(), player->GetGUID().ToString().c_str(),
                     m_session->GetAccountId(), player->GetPositionX(), player->GetPositionY(),
                     player->GetPositionZ(), player->GetMapId(),
                     player->GetMap() ? player->GetMap()->GetMapName() : "Unknown",
-                    areaId, areaName.c_str(), zoneName.c_str(), GetLogNameForGuid(guid),
+                    areaId, areaName.c_str(), zoneName.c_str(),
                     (player->GetSelectedUnit()) ? player->GetSelectedUnit()->GetName().c_str() : "",
-                    GUID_LOPART(guid));
+                    guid.ToString().c_str());
             }
         }
         // some commands have custom error messages. Don't send the default one in these cases.
@@ -628,7 +628,7 @@ bool ChatHandler::ShowHelpForCommand(ChatCommand* table, const char* cmd)
     return ShowHelpForSubCommands(table, "", cmd);
 }
 
-size_t ChatHandler::BuildChatPacket(WorldPacket& data, ChatMsg chatType, Language language, uint64 senderGUID, uint64 receiverGUID, std::string const& message, uint8 chatTag,
+size_t ChatHandler::BuildChatPacket(WorldPacket& data, ChatMsg chatType, Language language, ObjectGuid senderGUID, ObjectGuid receiverGUID, std::string const& message, uint8 chatTag,
                                   std::string const& senderName /*= ""*/, std::string const& receiverName /*= ""*/,
                                   uint32 achievementId /*= 0*/, bool gmMessage /*= false*/, std::string const& channelName /*= ""*/,
                                   std::string const& addonPrefix /*= ""*/)
@@ -653,7 +653,7 @@ size_t ChatHandler::BuildChatPacket(WorldPacket& data, ChatMsg chatType, Languag
             data << senderName;
             receiverGUIDPos = data.wpos();
             data << uint64(receiverGUID);
-            if (receiverGUID && !IS_PLAYER_GUID(receiverGUID) && !IS_PET_GUID(receiverGUID))
+            if (receiverGUID && !receiverGUID.IsPlayer() && !receiverGUID.IsPet())
             {
                 data << uint32(receiverName.length() + 1);
                 data << receiverName;
@@ -675,7 +675,7 @@ size_t ChatHandler::BuildChatPacket(WorldPacket& data, ChatMsg chatType, Languag
         case CHAT_MSG_BG_SYSTEM_HORDE:
             receiverGUIDPos = data.wpos();
             data << uint64(receiverGUID);
-            if (receiverGUID && !IS_PLAYER_GUID(receiverGUID))
+            if (receiverGUID && !receiverGUID.IsPlayer())
             {
                 data << uint32(receiverName.length() + 1);
                 data << receiverName;
@@ -730,11 +730,11 @@ size_t ChatHandler::BuildChatPacket(WorldPacket& data, ChatMsg chatType, Languag
 size_t ChatHandler::BuildChatPacket(WorldPacket& data, ChatMsg chatType, Language language, WorldObject const* sender, WorldObject const* receiver, std::string const& message,
                                   uint32 achievementId /*= 0*/, std::string const& channelName /*= ""*/, LocaleConstant locale /*= DEFAULT_LOCALE*/, std::string const& addonPrefix /*= ""*/)
 {
-    uint64 senderGUID = 0;
+    ObjectGuid senderGUID;
     std::string senderName = "";
     uint8 chatTag = 0;
     bool gmMessage = false;
-    uint64 receiverGUID = 0;
+    ObjectGuid receiverGUID;
     std::string receiverName = "";
     if (sender)
     {
@@ -761,7 +761,7 @@ Player* ChatHandler::getSelectedPlayer()
     if (!m_session)
         return NULL;
 
-    uint64 selected = m_session->GetPlayer()->GetTarget();
+    ObjectGuid selected = m_session->GetPlayer()->GetTarget();
     if (!selected)
         return m_session->GetPlayer();
 
@@ -784,9 +784,9 @@ WorldObject* ChatHandler::getSelectedObject()
     if (!m_session)
         return NULL;
 
-    uint64 guid = m_session->GetPlayer()->GetTarget();
+    ObjectGuid guid = m_session->GetPlayer()->GetTarget();
 
-    if (guid == 0)
+    if (!guid)
         return GetNearbyGameObject();
 
     return ObjectAccessor::GetUnit(*m_session->GetPlayer(), guid);
@@ -805,7 +805,7 @@ Player* ChatHandler::getSelectedPlayerOrSelf()
     if (!m_session)
         return NULL;
 
-    uint64 selected = m_session->GetPlayer()->GetTarget();
+    ObjectGuid selected = m_session->GetPlayer()->GetTarget();
     if (!selected)
         return m_session->GetPlayer();
 
@@ -950,7 +950,7 @@ GameObject* ChatHandler::GetObjectGlobalyWithGuidOrNearWithDbGuid(uint32 lowguid
 
     Player* pl = m_session->GetPlayer();
 
-    GameObject* obj = pl->GetMap()->GetGameObject(MAKE_NEW_GUID(lowguid, entry, HIGHGUID_GAMEOBJECT));
+    GameObject* obj = pl->GetMap()->GetGameObject(ObjectGuid(HIGHGUID_GAMEOBJECT, entry, lowguid));
 
     if (!obj && sObjectMgr->GetGOData(lowguid))                   // guid is DB guid of object
     {
@@ -1071,7 +1071,7 @@ static char const* const guidKeys[] =
     nullptr
 };
 
-uint64 ChatHandler::extractGuidFromLink(char* text)
+ObjectGuid ChatHandler::extractGuidFromLink(char* text)
 {
     int type = 0;
 
@@ -1080,7 +1080,7 @@ uint64 ChatHandler::extractGuidFromLink(char* text)
     // |color|Hplayer:name|h[name]|h|r
     char* idS = extractKeyFromLink(text, guidKeys, &type);
     if (!idS)
-        return 0;
+        return ObjectGuid::Empty;
 
     switch (type)
     {
@@ -1088,38 +1088,38 @@ uint64 ChatHandler::extractGuidFromLink(char* text)
         {
             std::string name = idS;
             if (!normalizePlayerName(name))
-                return 0;
+                return ObjectGuid::Empty;
 
             if (Player* player = sObjectAccessor->FindPlayerByName(name))
                 return player->GetGUID();
 
-            if (uint64 guid = sObjectMgr->GetPlayerGUIDByName(name))
+            if (ObjectGuid guid = sObjectMgr->GetPlayerGUIDByName(name))
                 return guid;
 
-            return 0;
+            return ObjectGuid::Empty;
         }
         case SPELL_LINK_CREATURE:
         {
             uint32 lowguid = (uint32)atol(idS);
 
             if (CreatureData const* data = sObjectMgr->GetCreatureData(lowguid))
-                return MAKE_NEW_GUID(lowguid, data->id, HIGHGUID_UNIT);
+                return ObjectGuid(HIGHGUID_UNIT, data->id, lowguid);
             else
-                return 0;
+                return ObjectGuid::Empty;
         }
         case SPELL_LINK_GAMEOBJECT:
         {
             uint32 lowguid = (uint32)atol(idS);
 
             if (GameObjectData const* data = sObjectMgr->GetGOData(lowguid))
-                return MAKE_NEW_GUID(lowguid, data->id, HIGHGUID_GAMEOBJECT);
+                return ObjectGuid(HIGHGUID_GAMEOBJECT, data->id, lowguid);
             else
-                return 0;
+                return ObjectGuid::Empty;
         }
     }
 
     // unknown type?
-    return 0;
+    return ObjectGuid::Empty;
 }
 
 std::string ChatHandler::extractPlayerNameFromLink(char* text)
@@ -1136,7 +1136,7 @@ std::string ChatHandler::extractPlayerNameFromLink(char* text)
     return name;
 }
 
-bool ChatHandler::extractPlayerTarget(char* args, Player** player, uint64* player_guid /*=NULL*/, std::string* player_name /*= NULL*/)
+bool ChatHandler::extractPlayerTarget(char* args, Player** player, ObjectGuid* player_guid /*=NULL*/, std::string* player_name /*= NULL*/)
 {
     if (args && *args)
     {
@@ -1155,7 +1155,7 @@ bool ChatHandler::extractPlayerTarget(char* args, Player** player, uint64* playe
             *player = pl;
 
         // if need guid value from DB (in name case for check player existence)
-        uint64 guid = !pl && (player_guid || player_name) ? sObjectMgr->GetPlayerGUIDByName(name) : 0;
+        ObjectGuid guid = !pl && (player_guid || player_name) ? sObjectMgr->GetPlayerGUIDByName(name) : ObjectGuid::Empty;
 
         // if allowed player guid (if no then only online players allowed)
         if (player_guid)
@@ -1172,7 +1172,7 @@ bool ChatHandler::extractPlayerTarget(char* args, Player** player, uint64* playe
             *player = pl;
         // if allowed player guid (if no then only online players allowed)
         if (player_guid)
-            *player_guid = pl ? pl->GetGUID() : 0;
+            *player_guid = pl ? pl->GetGUID() : ObjectGuid::Empty;
 
         if (player_name)
             *player_name = pl ? pl->GetName() : "";
@@ -1268,7 +1268,7 @@ std::string ChatHandler::GetNameLink(Player* chr) const
     return playerLink(chr->GetName());
 }
 
-const char *CliHandler::GetTrinityString(int32 entry) const
+char const* CliHandler::GetTrinityString(uint32 entry) const
 {
     return sObjectMgr->GetTrinityStringForDBCLocale(entry);
 }
@@ -1295,10 +1295,10 @@ bool CliHandler::needReportToTarget(Player* /*chr*/) const
     return true;
 }
 
-bool ChatHandler::GetPlayerGroupAndGUIDByName(const char* cname, Player* &player, Group* &group, uint64 &guid, bool offline)
+bool ChatHandler::GetPlayerGroupAndGUIDByName(const char* cname, Player*& player, Group*& group, ObjectGuid& guid, bool offline)
 {
-    player  = NULL;
-    guid = 0;
+    player = NULL;
+    guid.Clear();
 
     if (cname)
     {
diff --git a/src/server/game/Chat/Chat.h b/src/server/game/Chat/Chat.h
index 58bc11f786f..deae5d6e937 100644
--- a/src/server/game/Chat/Chat.h
+++ b/src/server/game/Chat/Chat.h
@@ -54,7 +54,7 @@ class ChatHandler
         virtual ~ChatHandler() { }
 
         // Builds chat packet and returns receiver guid position in the packet to substitute in whisper builders
-        static size_t BuildChatPacket(WorldPacket& data, ChatMsg chatType, Language language, uint64 senderGUID, uint64 receiverGUID, std::string const& message, uint8 chatTag,
+        static size_t BuildChatPacket(WorldPacket& data, ChatMsg chatType, Language language, ObjectGuid senderGUID, ObjectGuid receiverGUID, std::string const& message, uint8 chatTag,
                                     std::string const& senderName = "", std::string const& receiverName = "",
                                     uint32 achievementId = 0, bool gmMessage = false, std::string const& channelName = "",
                                     std::string const& addonPrefix = "");
@@ -65,13 +65,13 @@ class ChatHandler
         static char* LineFromMessage(char*& pos) { char* start = strtok(pos, "\n"); pos = NULL; return start; }
 
         // function with different implementation for chat/console
-        virtual const char *GetTrinityString(int32 entry) const;
-        virtual void SendSysMessage(const char *str);
+        virtual char const* GetTrinityString(uint32 entry) const;
+        virtual void SendSysMessage(char const* str);
 
-        void SendSysMessage(int32     entry);
-        void PSendSysMessage(const char *format, ...) ATTR_PRINTF(2, 3);
-        void PSendSysMessage(int32     entry, ...);
-        std::string PGetParseString(int32 entry, ...) const;
+        void SendSysMessage(uint32 entry);
+        void PSendSysMessage(char const* format, ...) ATTR_PRINTF(2, 3);
+        void PSendSysMessage(uint32 entry, ...);
+        std::string PGetParseString(uint32 entry, ...) const;
 
         bool ParseCommands(const char* text);
 
@@ -90,7 +90,7 @@ class ChatHandler
         virtual LocaleConstant GetSessionDbcLocale() const;
         virtual int GetSessionDbLocaleIndex() const;
 
-        bool HasLowerSecurity(Player* target, uint64 guid, bool strong = false);
+        bool HasLowerSecurity(Player* target, ObjectGuid guid, bool strong = false);
         bool HasLowerSecurityAccount(WorldSession* target, uint32 account, bool strong = false);
 
         void SendGlobalGMSysMessage(const char *str);
@@ -109,12 +109,12 @@ class ChatHandler
         char*     extractQuotedArg(char* args);
 
         uint32    extractSpellIdFromLink(char* text);
-        uint64    extractGuidFromLink(char* text);
+        ObjectGuid extractGuidFromLink(char* text);
         GameTele const* extractGameTeleFromLink(char* text);
-        bool GetPlayerGroupAndGUIDByName(const char* cname, Player* &player, Group* &group, uint64 &guid, bool offline = false);
+        bool GetPlayerGroupAndGUIDByName(const char* cname, Player*& player, Group*& group, ObjectGuid& guid, bool offline = false);
         std::string extractPlayerNameFromLink(char* text);
         // select by arg (name/link) or in-game selection online/offline player or self if a creature is selected
-        bool extractPlayerTarget(char* args, Player** player, uint64* player_guid = NULL, std::string* player_name = NULL);
+        bool extractPlayerTarget(char* args, Player** player, ObjectGuid* player_guid = NULL, std::string* player_name = NULL);
 
         std::string playerLink(std::string const& name) const { return m_session ? "|cffffffff|Hplayer:"+name+"|h["+name+"]|h|r" : name; }
         std::string GetNameLink(Player* chr) const;
@@ -148,7 +148,7 @@ class CliHandler : public ChatHandler
         explicit CliHandler(void* callbackArg, Print* zprint) : m_callbackArg(callbackArg), m_print(zprint) { }
 
         // overwrite functions
-        const char *GetTrinityString(int32 entry) const override;
+        char const* GetTrinityString(uint32 entry) const override;
         bool isAvailable(ChatCommand const& cmd) const override;
         bool HasPermission(uint32 /*permission*/) const override { return true; }
         void SendSysMessage(const char *str) override;
diff --git a/src/server/game/Combat/ThreatManager.cpp b/src/server/game/Combat/ThreatManager.cpp
index edf15aaf1ff..85510ab0545 100644
--- a/src/server/game/Combat/ThreatManager.cpp
+++ b/src/server/game/Combat/ThreatManager.cpp
@@ -269,7 +269,7 @@ HostileReference* ThreatContainer::getReferenceByTarget(Unit* victim) const
     if (!victim)
         return NULL;
 
-    uint64 const guid = victim->GetGUID();
+    ObjectGuid guid = victim->GetGUID();
     for (ThreatContainer::StorageType::const_iterator i = iThreatList.begin(); i != iThreatList.end(); ++i)
     {
         HostileReference* ref = (*i);
diff --git a/src/server/game/Combat/ThreatManager.h b/src/server/game/Combat/ThreatManager.h
index f0741f81067..62b3d10e554 100644
--- a/src/server/game/Combat/ThreatManager.h
+++ b/src/server/game/Combat/ThreatManager.h
@@ -23,6 +23,7 @@
 #include "SharedDefines.h"
 #include "LinkedReference/Reference.h"
 #include "UnitEvents.h"
+#include "ObjectGuid.h"
 
 #include <list>
 
@@ -103,7 +104,7 @@ class HostileReference : public Reference<Unit, ThreatManager>
 
         //=================================================
 
-        uint64 getUnitGuid() const { return iUnitGuid; }
+        ObjectGuid getUnitGuid() const { return iUnitGuid; }
 
         //=================================================
         // reference is not needed anymore. realy delete it !
@@ -132,7 +133,7 @@ class HostileReference : public Reference<Unit, ThreatManager>
     private:
         float iThreat;
         float iTempThreatModifier;                          // used for taunt
-        uint64 iUnitGuid;
+        ObjectGuid iUnitGuid;
         bool iOnline;
         bool iAccessible;
 };
diff --git a/src/server/game/Conditions/ConditionMgr.cpp b/src/server/game/Conditions/ConditionMgr.cpp
index 739a373dbf0..921b6832d67 100644
--- a/src/server/game/Conditions/ConditionMgr.cpp
+++ b/src/server/game/Conditions/ConditionMgr.cpp
@@ -166,12 +166,15 @@ bool Condition::Meets(ConditionSourceInfo& sourceInfo)
                         case INSTANCE_INFO_DATA:
                             condMeets = instance->GetData(ConditionValue1) == ConditionValue2;
                             break;
-                        case INSTANCE_INFO_DATA64:
-                            condMeets = instance->GetData64(ConditionValue1) == ConditionValue2;
+                        case INSTANCE_INFO_GUID_DATA:
+                            condMeets = instance->GetGuidData(ConditionValue1) == ObjectGuid(uint64(ConditionValue2));
                             break;
                         case INSTANCE_INFO_BOSS_STATE:
                             condMeets = instance->GetBossState(ConditionValue1) == EncounterState(ConditionValue2);
                             break;
+                        case INSTANCE_INFO_DATA64:
+                            condMeets = instance->GetData64(ConditionValue1) == ConditionValue2;
+                            break;
                     }
                 }
             }
diff --git a/src/server/game/Conditions/ConditionMgr.h b/src/server/game/Conditions/ConditionMgr.h
index 317db5b2019..686b0945719 100644
--- a/src/server/game/Conditions/ConditionMgr.h
+++ b/src/server/game/Conditions/ConditionMgr.h
@@ -146,8 +146,9 @@ enum RelationType
 enum InstanceInfo
 {
     INSTANCE_INFO_DATA = 0,
-    INSTANCE_INFO_DATA64,
-    INSTANCE_INFO_BOSS_STATE
+    INSTANCE_INFO_GUID_DATA,
+    INSTANCE_INFO_BOSS_STATE,
+    INSTANCE_INFO_DATA64
 };
 
 enum MaxConditionTargets
diff --git a/src/server/game/DungeonFinding/LFG.h b/src/server/game/DungeonFinding/LFG.h
index efafd5d3afd..a112eb9c98e 100644
--- a/src/server/game/DungeonFinding/LFG.h
+++ b/src/server/game/DungeonFinding/LFG.h
@@ -19,6 +19,7 @@
 #define _LFG_H
 
 #include "Common.h"
+#include "ObjectGuid.h"
 
 namespace lfg
 {
@@ -110,11 +111,9 @@ struct LfgLockInfoData
 
 typedef std::set<uint32> LfgDungeonSet;
 typedef std::map<uint32, LfgLockInfoData> LfgLockMap;
-typedef std::map<uint64, LfgLockMap> LfgLockPartyMap;
-typedef std::set<uint64> LfgGuidSet;
-typedef std::list<uint64> LfgGuidList;
-typedef std::map<uint64, uint8> LfgRolesMap;
-typedef std::map<uint64, uint64> LfgGroupsMap;
+typedef std::map<ObjectGuid, LfgLockMap> LfgLockPartyMap;
+typedef std::map<ObjectGuid, uint8> LfgRolesMap;
+typedef std::map<ObjectGuid, ObjectGuid> LfgGroupsMap;
 
 std::string ConcatenateDungeons(LfgDungeonSet const& dungeons);
 std::string GetRolesString(uint8 roles);
diff --git a/src/server/game/DungeonFinding/LFGGroupData.cpp b/src/server/game/DungeonFinding/LFGGroupData.cpp
index d7c9efeb70e..81859f4f946 100644
--- a/src/server/game/DungeonFinding/LFGGroupData.cpp
+++ b/src/server/game/DungeonFinding/LFGGroupData.cpp
@@ -22,7 +22,7 @@ namespace lfg
 {
 
 LfgGroupData::LfgGroupData(): m_State(LFG_STATE_NONE), m_OldState(LFG_STATE_NONE),
-    m_Leader(0), m_Dungeon(0), m_KicksLeft(LFG_GROUP_MAX_KICKS)
+    m_Leader(), m_Dungeon(0), m_KicksLeft(LFG_GROUP_MAX_KICKS)
 { }
 
 LfgGroupData::~LfgGroupData()
@@ -54,14 +54,14 @@ void LfgGroupData::RestoreState()
     m_State = m_OldState;
 }
 
-void LfgGroupData::AddPlayer(uint64 guid)
+void LfgGroupData::AddPlayer(ObjectGuid guid)
 {
     m_Players.insert(guid);
 }
 
-uint8 LfgGroupData::RemovePlayer(uint64 guid)
+uint8 LfgGroupData::RemovePlayer(ObjectGuid guid)
 {
-    LfgGuidSet::iterator it = m_Players.find(guid);
+    GuidSet::iterator it = m_Players.find(guid);
     if (it != m_Players.end())
         m_Players.erase(it);
     return uint8(m_Players.size());
@@ -72,7 +72,7 @@ void LfgGroupData::RemoveAllPlayers()
     m_Players.clear();
 }
 
-void LfgGroupData::SetLeader(uint64 guid)
+void LfgGroupData::SetLeader(ObjectGuid guid)
 {
     m_Leader = guid;
 }
@@ -98,7 +98,7 @@ LfgState LfgGroupData::GetOldState() const
     return m_OldState;
 }
 
-LfgGuidSet const& LfgGroupData::GetPlayers() const
+GuidSet const& LfgGroupData::GetPlayers() const
 {
     return m_Players;
 }
@@ -108,7 +108,7 @@ uint8 LfgGroupData::GetPlayerCount() const
     return m_Players.size();
 }
 
-uint64 LfgGroupData::GetLeader() const
+ObjectGuid LfgGroupData::GetLeader() const
 {
     return m_Leader;
 }
diff --git a/src/server/game/DungeonFinding/LFGGroupData.h b/src/server/game/DungeonFinding/LFGGroupData.h
index b2bffd5a13b..45df76aca2a 100644
--- a/src/server/game/DungeonFinding/LFGGroupData.h
+++ b/src/server/game/DungeonFinding/LFGGroupData.h
@@ -42,10 +42,10 @@ class LfgGroupData
         // General
         void SetState(LfgState state);
         void RestoreState();
-        void AddPlayer(uint64 guid);
-        uint8 RemovePlayer(uint64 guid);
+        void AddPlayer(ObjectGuid guid);
+        uint8 RemovePlayer(ObjectGuid guid);
         void RemoveAllPlayers();
-        void SetLeader(uint64 guid);
+        void SetLeader(ObjectGuid guid);
 
         // Dungeon
         void SetDungeon(uint32 dungeon);
@@ -56,9 +56,9 @@ class LfgGroupData
         // General
         LfgState GetState() const;
         LfgState GetOldState() const;
-        LfgGuidSet const& GetPlayers() const;
+        GuidSet const& GetPlayers() const;
         uint8 GetPlayerCount() const;
-        uint64 GetLeader() const;
+        ObjectGuid GetLeader() const;
 
         // Dungeon
         uint32 GetDungeon(bool asId = true) const;
@@ -70,8 +70,8 @@ class LfgGroupData
         // General
         LfgState m_State;                                  ///< State if group in LFG
         LfgState m_OldState;                               ///< Old State
-        uint64 m_Leader;                                   ///< Leader GUID
-        LfgGuidSet m_Players;                              ///< Players in group
+        ObjectGuid m_Leader;                               ///< Leader GUID
+        GuidSet m_Players;                                 ///< Players in group
         // Dungeon
         uint32 m_Dungeon;                                  ///< Dungeon entry
         // Vote Kick
diff --git a/src/server/game/DungeonFinding/LFGMgr.cpp b/src/server/game/DungeonFinding/LFGMgr.cpp
index 0efc7fd6230..4bed997bced 100644
--- a/src/server/game/DungeonFinding/LFGMgr.cpp
+++ b/src/server/game/DungeonFinding/LFGMgr.cpp
@@ -50,15 +50,15 @@ LFGMgr::~LFGMgr()
         delete itr->second;
 }
 
-void LFGMgr::_LoadFromDB(Field* fields, uint64 guid)
+void LFGMgr::_LoadFromDB(Field* fields, ObjectGuid guid)
 {
     if (!fields)
         return;
 
-    if (!IS_GROUP_GUID(guid))
+    if (!guid.IsGroup())
         return;
 
-    SetLeader(guid, MAKE_NEW_GUID(fields[0].GetUInt32(), 0, HIGHGUID_PLAYER));
+    SetLeader(guid, ObjectGuid(HIGHGUID_PLAYER, fields[0].GetUInt32()));
 
     uint32 dungeon = fields[17].GetUInt32();
     uint8 state = fields[18].GetUInt8();
@@ -79,9 +79,9 @@ void LFGMgr::_LoadFromDB(Field* fields, uint64 guid)
     }
 }
 
-void LFGMgr::_SaveToDB(uint64 guid, uint32 db_guid)
+void LFGMgr::_SaveToDB(ObjectGuid guid, uint32 db_guid)
 {
-    if (!IS_GROUP_GUID(guid))
+    if (!guid.IsGroup())
         return;
 
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_LFG_DATA);
@@ -276,7 +276,7 @@ void LFGMgr::Update(uint32 diff)
 
         for (LfgRolesMap::const_iterator itRoles = roleCheck.roles.begin(); itRoles != roleCheck.roles.end(); ++itRoles)
         {
-            uint64 guid = itRoles->first;
+            ObjectGuid guid = itRoles->first;
             RestoreState(guid, "Remove Obsolete RoleCheck");
             SendLfgRoleCheckUpdate(guid, roleCheck);
             if (guid == roleCheck.leader)
@@ -305,7 +305,7 @@ void LFGMgr::Update(uint32 diff)
             boot.inProgress = false;
             for (LfgAnswerContainer::const_iterator itVotes = boot.votes.begin(); itVotes != boot.votes.end(); ++itVotes)
             {
-                uint64 pguid = itVotes->first;
+                ObjectGuid pguid = itVotes->first;
                 if (pguid != boot.victim)
                     SendLfgBootProposalUpdate(pguid, boot);
                 SetState(pguid, LFG_STATE_DUNGEON);
@@ -329,12 +329,12 @@ void LFGMgr::Update(uint32 diff)
             uint32 proposalId = itProposal->first;
             LfgProposal& proposal = ProposalsStore[proposalId];
 
-            uint64 guid = 0;
+            ObjectGuid guid;
             for (LfgProposalPlayerContainer::const_iterator itPlayers = proposal.players.begin(); itPlayers != proposal.players.end(); ++itPlayers)
             {
                 guid = itPlayers->first;
                 SetState(guid, LFG_STATE_PROPOSAL);
-                if (uint64 gguid = GetGroup(guid))
+                if (ObjectGuid gguid = GetGroup(guid))
                 {
                     SetState(gguid, LFG_STATE_PROPOSAL);
                     SendLfgUpdateStatus(guid, LfgUpdateData(LFG_UPDATETYPE_PROPOSAL_BEGIN, GetSelectedDungeons(guid), GetComment(guid)), true);
@@ -376,10 +376,10 @@ void LFGMgr::JoinLfg(Player* player, uint8 roles, LfgDungeonSet& dungeons, const
         return;
 
     Group* grp = player->GetGroup();
-    uint64 guid = player->GetGUID();
-    uint64 gguid = grp ? grp->GetGUID() : guid;
+    ObjectGuid guid = player->GetGUID();
+    ObjectGuid gguid = grp ? grp->GetGUID() : guid;
     LfgJoinResultData joinData;
-    LfgGuidSet players;
+    GuidSet players;
     uint32 rDungeonId = 0;
     bool isContinue = grp && grp->isLFGGroup() && GetState(gguid) != LFG_STATE_FINISHED_DUNGEON;
 
@@ -491,7 +491,7 @@ void LFGMgr::JoinLfg(Player* player, uint8 roles, LfgDungeonSet& dungeons, const
     if (joinData.result != LFG_JOIN_OK)
     {
         TC_LOG_DEBUG("lfg.join", "%u joining with %u members. Result: %u, Dungeons: %s",
-            GUID_LOPART(guid), grp ? grp->GetMembersCount() : 1, joinData.result, ConcatenateDungeons(dungeons).c_str());
+            guid.GetCounter(), grp ? grp->GetMembersCount() : 1, joinData.result, ConcatenateDungeons(dungeons).c_str());
 
         if (!dungeons.empty())                             // Only should show lockmap when have no dungeons available
             joinData.lockmap.clear();
@@ -503,7 +503,7 @@ void LFGMgr::JoinLfg(Player* player, uint8 roles, LfgDungeonSet& dungeons, const
 
     if (isRaid)
     {
-        TC_LOG_DEBUG("lfg.join", "%u trying to join raid browser and it's disabled.", GUID_LOPART(guid));
+        TC_LOG_DEBUG("lfg.join", "%u trying to join raid browser and it's disabled.", guid.GetCounter());
         return;
     }
 
@@ -531,7 +531,7 @@ void LFGMgr::JoinLfg(Player* player, uint8 roles, LfgDungeonSet& dungeons, const
         {
             if (Player* plrg = itr->GetSource())
             {
-                uint64 pguid = plrg->GetGUID();
+                ObjectGuid pguid = plrg->GetGUID();
                 plrg->GetSession()->SendLfgUpdateStatus(updateData, true);
                 SetState(pguid, LFG_STATE_ROLECHECK);
                 if (!isContinue)
@@ -569,7 +569,7 @@ void LFGMgr::JoinLfg(Player* player, uint8 roles, LfgDungeonSet& dungeons, const
         debugNames.append(player->GetName());
     }
 
-    TC_LOG_DEBUG("lfg.join", "%u joined (%s), Members: %s. Dungeons (%u): %s", GUID_LOPART(guid),
+    TC_LOG_DEBUG("lfg.join", "%u joined (%s), Members: %s. Dungeons (%u): %s", guid.GetCounter(),
         grp ? "group" : "player", debugNames.c_str(), uint32(dungeons.size()), ConcatenateDungeons(dungeons).c_str());
 }
 
@@ -579,11 +579,11 @@ void LFGMgr::JoinLfg(Player* player, uint8 roles, LfgDungeonSet& dungeons, const
 
    @param[in]     guid Player or group guid
 */
-void LFGMgr::LeaveLfg(uint64 guid)
+void LFGMgr::LeaveLfg(ObjectGuid guid)
 {
-    uint64 gguid = IS_GROUP_GUID(guid) ? guid : GetGroup(guid);
+    ObjectGuid gguid = guid.IsGroup() ? guid : GetGroup(guid);
 
-    TC_LOG_DEBUG("lfg.leave", "%u left (%s)", GUID_LOPART(guid), guid == gguid ? "group" : "player");
+    TC_LOG_DEBUG("lfg.leave", "%u left (%s)", guid.GetCounter(), guid == gguid ? "group" : "player");
 
     LfgState state = GetState(guid);
     switch (state)
@@ -594,8 +594,8 @@ void LFGMgr::LeaveLfg(uint64 guid)
                 LFGQueue& queue = GetQueue(gguid);
                 queue.RemoveFromQueue(gguid);
                 SetState(gguid, LFG_STATE_NONE);
-                const LfgGuidSet& players = GetPlayers(gguid);
-                for (LfgGuidSet::const_iterator it = players.begin(); it != players.end(); ++it)
+                GuidSet const& players = GetPlayers(gguid);
+                for (GuidSet::const_iterator it = players.begin(); it != players.end(); ++it)
                 {
                     SetState(*it, LFG_STATE_NONE);
                     SendLfgUpdateStatus(*it, LfgUpdateData(LFG_UPDATETYPE_REMOVED_FROM_QUEUE), true);
@@ -617,7 +617,7 @@ void LFGMgr::LeaveLfg(uint64 guid)
         {
             // Remove from Proposals
             LfgProposalContainer::iterator it = ProposalsStore.begin();
-            uint64 pguid = gguid == guid ? GetLeader(gguid) : guid;
+            ObjectGuid pguid = gguid == guid ? GetLeader(gguid) : guid;
             while (it != ProposalsStore.end())
             {
                 LfgProposalPlayerContainer::iterator itPlayer = it->second.players.find(pguid);
@@ -654,7 +654,7 @@ void LFGMgr::LeaveLfg(uint64 guid)
    @param[in]     guid Player guid (0 = rolecheck failed)
    @param[in]     roles Player selected roles
 */
-void LFGMgr::UpdateRoleCheck(uint64 gguid, uint64 guid /* = 0 */, uint8 roles /* = PLAYER_ROLE_NONE */)
+void LFGMgr::UpdateRoleCheck(ObjectGuid gguid, ObjectGuid guid /* = ObjectGuid::Empty */, uint8 roles /* = PLAYER_ROLE_NONE */)
 {
     if (!gguid)
         return;
@@ -701,7 +701,7 @@ void LFGMgr::UpdateRoleCheck(uint64 gguid, uint64 guid /* = 0 */, uint8 roles /*
     LfgJoinResultData joinData = LfgJoinResultData(joinResult, roleCheck.state);
     for (LfgRolesMap::const_iterator it = roleCheck.roles.begin(); it != roleCheck.roles.end(); ++it)
     {
-        uint64 pguid = it->first;
+        ObjectGuid pguid = it->first;
 
         if (sendRoleChosen)
             SendLfgRoleChosen(pguid, guid, roles);
@@ -746,12 +746,12 @@ void LFGMgr::UpdateRoleCheck(uint64 gguid, uint64 guid /* = 0 */, uint8 roles /*
    @param[in]     players Set of players to check their dungeon restrictions
    @param[out]    lockMap Map of players Lock status info of given dungeons (Empty if dungeons is not empty)
 */
-void LFGMgr::GetCompatibleDungeons(LfgDungeonSet& dungeons, LfgGuidSet const& players, LfgLockPartyMap& lockMap)
+void LFGMgr::GetCompatibleDungeons(LfgDungeonSet& dungeons, GuidSet const& players, LfgLockPartyMap& lockMap)
 {
     lockMap.clear();
-    for (LfgGuidSet::const_iterator it = players.begin(); it != players.end() && !dungeons.empty(); ++it)
+    for (GuidSet::const_iterator it = players.begin(); it != players.end() && !dungeons.empty(); ++it)
     {
-        uint64 guid = (*it);
+        ObjectGuid guid = (*it);
         LfgLockMap const& cachedLockMap = GetLockedDungeons(guid);
         for (LfgLockMap::const_iterator it2 = cachedLockMap.begin(); it2 != cachedLockMap.end() && !dungeons.empty(); ++it2)
         {
@@ -847,12 +847,12 @@ bool LFGMgr::CheckGroupRoles(LfgRolesMap& groles, bool removeLeaderFlag /*= true
 */
 void LFGMgr::MakeNewGroup(LfgProposal const& proposal)
 {
-    LfgGuidList players;
-    LfgGuidList playersToTeleport;
+    GuidList players;
+    GuidList playersToTeleport;
 
     for (LfgProposalPlayerContainer::const_iterator it = proposal.players.begin(); it != proposal.players.end(); ++it)
     {
-        uint64 guid = it->first;
+        ObjectGuid guid = it->first;
         if (guid == proposal.leader)
             players.push_front(guid);
         else
@@ -866,10 +866,10 @@ void LFGMgr::MakeNewGroup(LfgProposal const& proposal)
     LFGDungeonData const* dungeon = GetLFGDungeon(proposal.dungeonId);
     ASSERT(dungeon);
 
-    Group* grp = proposal.group ? sGroupMgr->GetGroupByGUID(GUID_LOPART(proposal.group)) : NULL;
-    for (LfgGuidList::const_iterator it = players.begin(); it != players.end(); ++it)
+    Group* grp = proposal.group ? sGroupMgr->GetGroupByGUID(proposal.group.GetCounter()) : NULL;
+    for (GuidList::const_iterator it = players.begin(); it != players.end(); ++it)
     {
-        uint64 pguid = (*it);
+        ObjectGuid pguid = (*it);
         Player* player = ObjectAccessor::FindPlayer(pguid);
         if (!player)
             continue;
@@ -883,7 +883,7 @@ void LFGMgr::MakeNewGroup(LfgProposal const& proposal)
             grp = new Group();
             grp->ConvertToLFG();
             grp->Create(player);
-            uint64 gguid = grp->GetGUID();
+            ObjectGuid gguid = grp->GetGUID();
             SetState(gguid, LFG_STATE_PROPOSAL);
             sGroupMgr->AddGroup(grp);
         }
@@ -899,14 +899,14 @@ void LFGMgr::MakeNewGroup(LfgProposal const& proposal)
 
     ASSERT(grp);
     grp->SetDungeonDifficulty(Difficulty(dungeon->difficulty));
-    uint64 gguid = grp->GetGUID();
+    ObjectGuid gguid = grp->GetGUID();
     SetDungeon(gguid, dungeon->Entry());
     SetState(gguid, LFG_STATE_DUNGEON);
 
     _SaveToDB(gguid, grp->GetDbStoreId());
 
     // Teleport Player
-    for (LfgGuidList::const_iterator it = playersToTeleport.begin(); it != playersToTeleport.end(); ++it)
+    for (GuidList::const_iterator it = playersToTeleport.begin(); it != playersToTeleport.end(); ++it)
         if (Player* player = ObjectAccessor::FindPlayer(*it))
             TeleportPlayer(player, false);
 
@@ -928,7 +928,7 @@ uint32 LFGMgr::AddProposal(LfgProposal& proposal)
    @param[in]     guid Player guid to update answer
    @param[in]     accept Player answer
 */
-void LFGMgr::UpdateProposal(uint32 proposalId, uint64 guid, bool accept)
+void LFGMgr::UpdateProposal(uint32 proposalId, ObjectGuid guid, bool accept)
 {
     // Check if the proposal exists
     LfgProposalContainer::iterator itProposal = ProposalsStore.find(proposalId);
@@ -945,7 +945,7 @@ void LFGMgr::UpdateProposal(uint32 proposalId, uint64 guid, bool accept)
     LfgProposalPlayer& player = itProposalPlayer->second;
     player.accept = LfgAnswer(accept);
 
-    TC_LOG_DEBUG("lfg.proposal.update", "Player %u, Proposal %u, Selection: %u", GUID_LOPART(guid), proposalId, accept);
+    TC_LOG_DEBUG("lfg.proposal.update", "Player %u, Proposal %u, Selection: %u", guid.GetCounter(), proposalId, accept);
     if (!accept)
     {
         RemoveProposal(itProposal, LFG_UPDATETYPE_PROPOSAL_DECLINED);
@@ -974,8 +974,8 @@ void LFGMgr::UpdateProposal(uint32 proposalId, uint64 guid, bool accept)
     LfgUpdateData updateData = LfgUpdateData(LFG_UPDATETYPE_GROUP_FOUND);
     for (LfgProposalPlayerContainer::const_iterator it = proposal.players.begin(); it != proposal.players.end(); ++it)
     {
-        uint64 pguid = it->first;
-        uint64 gguid = it->second.group;
+        ObjectGuid pguid = it->first;
+        ObjectGuid gguid = it->second.group;
         uint32 dungeonId = (*GetSelectedDungeons(pguid).begin());
         int32 waitTime = -1;
         if (sendUpdate)
@@ -1018,7 +1018,7 @@ void LFGMgr::UpdateProposal(uint32 proposalId, uint64 guid, bool accept)
     }
 
     // Remove players/groups from Queue
-    for (LfgGuidList::const_iterator it = proposal.queues.begin(); it != proposal.queues.end(); ++it)
+    for (GuidList::const_iterator it = proposal.queues.begin(); it != proposal.queues.end(); ++it)
         queue.RemoveFromQueue(*it);
 
     MakeNewGroup(proposal);
@@ -1044,13 +1044,13 @@ void LFGMgr::RemoveProposal(LfgProposalContainer::iterator itProposal, LfgUpdate
                 it->second.accept = LFG_ANSWER_DENY;
 
     // Mark players/groups to be removed
-    LfgGuidSet toRemove;
+    GuidSet toRemove;
     for (LfgProposalPlayerContainer::iterator it = proposal.players.begin(); it != proposal.players.end(); ++it)
     {
         if (it->second.accept == LFG_ANSWER_AGREE)
             continue;
 
-        uint64 guid = it->second.group ? it->second.group : it->first;
+        ObjectGuid guid = it->second.group ? it->second.group : it->first;
         // Player didn't accept or still pending when no secs left
         if (it->second.accept == LFG_ANSWER_DENY || type == LFG_UPDATETYPE_PROPOSAL_FAILED)
         {
@@ -1062,8 +1062,8 @@ void LFGMgr::RemoveProposal(LfgProposalContainer::iterator itProposal, LfgUpdate
     // Notify players
     for (LfgProposalPlayerContainer::const_iterator it = proposal.players.begin(); it != proposal.players.end(); ++it)
     {
-        uint64 guid = it->first;
-        uint64 gguid = it->second.group ? it->second.group : guid;
+        ObjectGuid guid = it->first;
+        ObjectGuid gguid = it->second.group ? it->second.group : guid;
 
         SendLfgUpdateProposal(guid, proposal);
 
@@ -1073,12 +1073,12 @@ void LFGMgr::RemoveProposal(LfgProposalContainer::iterator itProposal, LfgUpdate
             if (it->second.accept == LFG_ANSWER_DENY)
             {
                 updateData.updateType = type;
-                TC_LOG_DEBUG("lfg.proposal.remove", "%u didn't accept. Removing from queue and compatible cache", GUID_LOPART(guid));
+                TC_LOG_DEBUG("lfg.proposal.remove", "%u didn't accept. Removing from queue and compatible cache", guid.GetCounter());
             }
             else
             {
                 updateData.updateType = LFG_UPDATETYPE_REMOVED_FROM_QUEUE;
-                TC_LOG_DEBUG("lfg.proposal.remove", "%u in same group that someone that didn't accept. Removing from queue and compatible cache",  GUID_LOPART(guid));
+                TC_LOG_DEBUG("lfg.proposal.remove", "%u in same group that someone that didn't accept. Removing from queue and compatible cache",  guid.GetCounter());
             }
 
             RestoreState(guid, "Proposal Fail (didn't accepted or in group with someone that didn't accept");
@@ -1092,7 +1092,7 @@ void LFGMgr::RemoveProposal(LfgProposalContainer::iterator itProposal, LfgUpdate
         }
         else
         {
-            TC_LOG_DEBUG("lfg.proposal.remove", "Readding %u to queue.",  GUID_LOPART(guid));
+            TC_LOG_DEBUG("lfg.proposal.remove", "Readding %u to queue.",  guid.GetCounter());
             SetState(guid, LFG_STATE_QUEUED);
             if (gguid != guid)
             {
@@ -1106,17 +1106,17 @@ void LFGMgr::RemoveProposal(LfgProposalContainer::iterator itProposal, LfgUpdate
 
     LFGQueue& queue = GetQueue(proposal.players.begin()->first);
     // Remove players/groups from queue
-    for (LfgGuidSet::const_iterator it = toRemove.begin(); it != toRemove.end(); ++it)
+    for (GuidSet::const_iterator it = toRemove.begin(); it != toRemove.end(); ++it)
     {
-        uint64 guid = *it;
+        ObjectGuid guid = *it;
         queue.RemoveFromQueue(guid);
         proposal.queues.remove(guid);
     }
 
     // Readd to queue
-    for (LfgGuidList::const_iterator it = proposal.queues.begin(); it != proposal.queues.end(); ++it)
+    for (GuidList::const_iterator it = proposal.queues.begin(); it != proposal.queues.end(); ++it)
     {
-        uint64 guid = *it;
+        ObjectGuid guid = *it;
         queue.AddToQueue(guid);
     }
 
@@ -1131,7 +1131,7 @@ void LFGMgr::RemoveProposal(LfgProposalContainer::iterator itProposal, LfgUpdate
    @param[in]     victim Victim guid
    @param[in]     reason Kick reason
 */
-void LFGMgr::InitBoot(uint64 gguid, uint64 kicker, uint64 victim, std::string const& reason)
+void LFGMgr::InitBoot(ObjectGuid gguid, ObjectGuid kicker, ObjectGuid victim, std::string const& reason)
 {
     SetState(gguid, LFG_STATE_BOOT);
 
@@ -1141,12 +1141,12 @@ void LFGMgr::InitBoot(uint64 gguid, uint64 kicker, uint64 victim, std::string co
     boot.reason = reason;
     boot.victim = victim;
 
-    LfgGuidSet const& players = GetPlayers(gguid);
+    GuidSet const& players = GetPlayers(gguid);
 
     // Set votes
-    for (LfgGuidSet::const_iterator itr = players.begin(); itr != players.end(); ++itr)
+    for (GuidSet::const_iterator itr = players.begin(); itr != players.end(); ++itr)
     {
-        uint64 guid = (*itr);
+        ObjectGuid guid = (*itr);
         SetState(guid, LFG_STATE_BOOT);
         boot.votes[guid] = LFG_ANSWER_PENDING;
     }
@@ -1155,7 +1155,7 @@ void LFGMgr::InitBoot(uint64 gguid, uint64 kicker, uint64 victim, std::string co
     boot.votes[kicker] = LFG_ANSWER_AGREE;                 // Kicker auto vote YES
 
     // Notify players
-    for (LfgGuidSet::const_iterator it = players.begin(); it != players.end(); ++it)
+    for (GuidSet::const_iterator it = players.begin(); it != players.end(); ++it)
         SendLfgBootProposalUpdate(*it, boot);
 }
 
@@ -1165,9 +1165,9 @@ void LFGMgr::InitBoot(uint64 gguid, uint64 kicker, uint64 victim, std::string co
    @param[in]     guid Player who has answered
    @param[in]     player answer
 */
-void LFGMgr::UpdateBoot(uint64 guid, bool accept)
+void LFGMgr::UpdateBoot(ObjectGuid guid, bool accept)
 {
-    uint64 gguid = GetGroup(guid);
+    ObjectGuid gguid = GetGroup(guid);
     if (!gguid)
         return;
 
@@ -1202,7 +1202,7 @@ void LFGMgr::UpdateBoot(uint64 guid, bool accept)
     boot.inProgress = false;
     for (LfgAnswerContainer::const_iterator itVotes = boot.votes.begin(); itVotes != boot.votes.end(); ++itVotes)
     {
-        uint64 pguid = itVotes->first;
+        ObjectGuid pguid = itVotes->first;
         if (pguid != boot.victim)
         {
             SetState(pguid, LFG_STATE_DUNGEON);
@@ -1213,7 +1213,7 @@ void LFGMgr::UpdateBoot(uint64 guid, bool accept)
     SetState(gguid, LFG_STATE_DUNGEON);
     if (agreeNum == LFG_GROUP_KICK_VOTES_NEEDED)           // Vote passed - Kick player
     {
-        if (Group* group = sGroupMgr->GetGroupByGUID(GUID_LOPART(gguid)))
+        if (Group* group = sGroupMgr->GetGroupByGUID(gguid.GetCounter()))
             Player::RemoveFromGroup(group, boot.victim, GROUP_REMOVEMETHOD_KICK_LFG);
         DecreaseKicksLeft(gguid);
     }
@@ -1320,30 +1320,30 @@ void LFGMgr::TeleportPlayer(Player* player, bool out, bool fromOpcode /*= false*
    @param[in]     guid Group guid
    @param[in]     dungeonId Dungeonid
 */
-void LFGMgr::FinishDungeon(uint64 gguid, const uint32 dungeonId)
+void LFGMgr::FinishDungeon(ObjectGuid gguid, const uint32 dungeonId)
 {
     uint32 gDungeonId = GetDungeon(gguid);
     if (gDungeonId != dungeonId)
     {
-        TC_LOG_DEBUG("lfg.dungeon.finish", "Group %u finished dungeon %u but queued for %u", GUID_LOPART(gguid), dungeonId, gDungeonId);
+        TC_LOG_DEBUG("lfg.dungeon.finish", "Group %u finished dungeon %u but queued for %u", gguid.GetCounter(), dungeonId, gDungeonId);
         return;
     }
 
     if (GetState(gguid) == LFG_STATE_FINISHED_DUNGEON) // Shouldn't happen. Do not reward multiple times
     {
-        TC_LOG_DEBUG("lfg.dungeon.finish", "Group: %u already rewarded", GUID_LOPART(gguid));
+        TC_LOG_DEBUG("lfg.dungeon.finish", "Group: %u already rewarded", gguid.GetCounter());
         return;
     }
 
     SetState(gguid, LFG_STATE_FINISHED_DUNGEON);
 
-    const LfgGuidSet& players = GetPlayers(gguid);
-    for (LfgGuidSet::const_iterator it = players.begin(); it != players.end(); ++it)
+    GuidSet const& players = GetPlayers(gguid);
+    for (GuidSet::const_iterator it = players.begin(); it != players.end(); ++it)
     {
-        uint64 guid = (*it);
+        ObjectGuid guid = (*it);
         if (GetState(guid) == LFG_STATE_FINISHED_DUNGEON)
         {
-            TC_LOG_DEBUG("lfg.dungeon.finish", "Group: %u, Player: %u already rewarded", GUID_LOPART(gguid), GUID_LOPART(guid));
+            TC_LOG_DEBUG("lfg.dungeon.finish", "Group: %u, Player: %u already rewarded", gguid.GetCounter(), guid.GetCounter());
             continue;
         }
 
@@ -1359,14 +1359,14 @@ void LFGMgr::FinishDungeon(uint64 gguid, const uint32 dungeonId)
 
         if (!dungeon || (dungeon->type != LFG_TYPE_RANDOM && !dungeon->seasonal))
         {
-            TC_LOG_DEBUG("lfg.dungeon.finish", "Group: %u, Player: %u dungeon %u is not random or seasonal", GUID_LOPART(gguid), GUID_LOPART(guid), rDungeonId);
+            TC_LOG_DEBUG("lfg.dungeon.finish", "Group: %u, Player: %u dungeon %u is not random or seasonal", gguid.GetCounter(), guid.GetCounter(), rDungeonId);
             continue;
         }
 
         Player* player = ObjectAccessor::FindPlayer(guid);
         if (!player || !player->IsInWorld())
         {
-            TC_LOG_DEBUG("lfg.dungeon.finish", "Group: %u, Player: %u not found in world", GUID_LOPART(gguid), GUID_LOPART(guid));
+            TC_LOG_DEBUG("lfg.dungeon.finish", "Group: %u, Player: %u not found in world", gguid.GetCounter(), guid.GetCounter());
             continue;
         }
 
@@ -1375,7 +1375,7 @@ void LFGMgr::FinishDungeon(uint64 gguid, const uint32 dungeonId)
 
         if (player->GetMapId() != mapId)
         {
-            TC_LOG_DEBUG("lfg.dungeon.finish", "Group: %u, Player: %u is in map %u and should be in %u to get reward", GUID_LOPART(gguid), GUID_LOPART(guid), player->GetMapId(), mapId);
+            TC_LOG_DEBUG("lfg.dungeon.finish", "Group: %u, Player: %u is in map %u and should be in %u to get reward", gguid.GetCounter(), guid.GetCounter(), player->GetMapId(), mapId);
             continue;
         }
 
@@ -1406,7 +1406,7 @@ void LFGMgr::FinishDungeon(uint64 gguid, const uint32 dungeonId)
         }
 
         // Give rewards
-        TC_LOG_DEBUG("lfg.dungeon.finish", "Group: %u, Player: %u done dungeon %u, %s previously done.", GUID_LOPART(gguid), GUID_LOPART(guid), GetDungeon(gguid), done? " " : " not");
+        TC_LOG_DEBUG("lfg.dungeon.finish", "Group: %u, Player: %u done dungeon %u, %s previously done.", gguid.GetCounter(), guid.GetCounter(), GetDungeon(gguid), done? " " : " not");
         LfgPlayerRewardData data = LfgPlayerRewardData(dungeon->Entry(), GetDungeon(gguid, false), done, quest);
         player->GetSession()->SendLfgPlayerReward(data);
     }
@@ -1466,48 +1466,48 @@ LfgType LFGMgr::GetDungeonType(uint32 dungeonId)
     return LfgType(dungeon->type);
 }
 
-LfgState LFGMgr::GetState(uint64 guid)
+LfgState LFGMgr::GetState(ObjectGuid guid)
 {
     LfgState state;
-    if (IS_GROUP_GUID(guid))
+    if (guid.IsGroup())
     {
         state = GroupsStore[guid].GetState();
-        TC_LOG_TRACE("lfg.data.group.state.get", "Group: %u, State: %u", GUID_LOPART(guid), state);
+        TC_LOG_TRACE("lfg.data.group.state.get", "Group: %u, State: %u", guid.GetCounter(), state);
     }
     else
     {
         state = PlayersStore[guid].GetState();
-        TC_LOG_TRACE("lfg.data.player.state.get", "Player: %u, State: %u", GUID_LOPART(guid), state);
+        TC_LOG_TRACE("lfg.data.player.state.get", "Player: %u, State: %u", guid.GetCounter(), state);
     }
 
     return state;
 }
 
-LfgState LFGMgr::GetOldState(uint64 guid)
+LfgState LFGMgr::GetOldState(ObjectGuid guid)
 {
     LfgState state;
-    if (IS_GROUP_GUID(guid))
+    if (guid.IsGroup())
     {
         state = GroupsStore[guid].GetOldState();
-        TC_LOG_TRACE("lfg.data.group.oldstate.get", "Group: %u, Old state: %u", GUID_LOPART(guid), state);
+        TC_LOG_TRACE("lfg.data.group.oldstate.get", "Group: %u, Old state: %u", guid.GetCounter(), state);
     }
     else
     {
         state = PlayersStore[guid].GetOldState();
-        TC_LOG_TRACE("lfg.data.player.oldstate.get", "Player: %u, Old state: %u", GUID_LOPART(guid), state);
+        TC_LOG_TRACE("lfg.data.player.oldstate.get", "Player: %u, Old state: %u", guid.GetCounter(), state);
     }
 
     return state;
 }
 
-uint32 LFGMgr::GetDungeon(uint64 guid, bool asId /*= true */)
+uint32 LFGMgr::GetDungeon(ObjectGuid guid, bool asId /*= true */)
 {
     uint32 dungeon = GroupsStore[guid].GetDungeon(asId);
-    TC_LOG_TRACE("lfg.data.group.dungeon.get", "Group: %u, asId: %u, Dungeon: %u", GUID_LOPART(guid), asId, dungeon);
+    TC_LOG_TRACE("lfg.data.group.dungeon.get", "Group: %u, asId: %u, Dungeon: %u", guid.GetCounter(), asId, dungeon);
     return dungeon;
 }
 
-uint32 LFGMgr::GetDungeonMapId(uint64 guid)
+uint32 LFGMgr::GetDungeonMapId(ObjectGuid guid)
 {
     uint32 dungeonId = GroupsStore[guid].GetDungeon(true);
     uint32 mapId = 0;
@@ -1515,38 +1515,38 @@ uint32 LFGMgr::GetDungeonMapId(uint64 guid)
         if (LFGDungeonData const* dungeon = GetLFGDungeon(dungeonId))
             mapId = dungeon->map;
 
-    TC_LOG_TRACE("lfg.data.group.dungeon.map", "Group: %u, MapId: %u (DungeonId: %u)", GUID_LOPART(guid), mapId, dungeonId);
+    TC_LOG_TRACE("lfg.data.group.dungeon.map", "Group: %u, MapId: %u (DungeonId: %u)", guid.GetCounter(), mapId, dungeonId);
 
     return mapId;
 }
 
-uint8 LFGMgr::GetRoles(uint64 guid)
+uint8 LFGMgr::GetRoles(ObjectGuid guid)
 {
     uint8 roles = PlayersStore[guid].GetRoles();
-    TC_LOG_TRACE("lfg.data.player.role.get", "Player: %u, Role: %u", GUID_LOPART(guid), roles);
+    TC_LOG_TRACE("lfg.data.player.role.get", "Player: %u, Role: %u", guid.GetCounter(), roles);
     return roles;
 }
 
-const std::string& LFGMgr::GetComment(uint64 guid)
+const std::string& LFGMgr::GetComment(ObjectGuid guid)
 {
-    TC_LOG_TRACE("lfg.data.player.comment.get", "Player: %u, Comment: %s", GUID_LOPART(guid), PlayersStore[guid].GetComment().c_str());
+    TC_LOG_TRACE("lfg.data.player.comment.get", "Player: %u, Comment: %s", guid.GetCounter(), PlayersStore[guid].GetComment().c_str());
     return PlayersStore[guid].GetComment();
 }
 
-LfgDungeonSet const& LFGMgr::GetSelectedDungeons(uint64 guid)
+LfgDungeonSet const& LFGMgr::GetSelectedDungeons(ObjectGuid guid)
 {
-    TC_LOG_TRACE("lfg.data.player.dungeons.selected.get", "Player: %u, Selected Dungeons: %s", GUID_LOPART(guid), ConcatenateDungeons(PlayersStore[guid].GetSelectedDungeons()).c_str());
+    TC_LOG_TRACE("lfg.data.player.dungeons.selected.get", "Player: %u, Selected Dungeons: %s", guid.GetCounter(), ConcatenateDungeons(PlayersStore[guid].GetSelectedDungeons()).c_str());
     return PlayersStore[guid].GetSelectedDungeons();
 }
 
-LfgLockMap const LFGMgr::GetLockedDungeons(uint64 guid)
+LfgLockMap const LFGMgr::GetLockedDungeons(ObjectGuid guid)
 {
-    TC_LOG_TRACE("lfg.data.player.dungeons.locked.get", "Player: %u, LockedDungeons.", GUID_LOPART(guid));
+    TC_LOG_TRACE("lfg.data.player.dungeons.locked.get", "Player: %u, LockedDungeons.", guid.GetCounter());
     LfgLockMap lock;
     Player* player = ObjectAccessor::FindPlayer(guid);
     if (!player)
     {
-        TC_LOG_WARN("lfg.data.player.dungeons.locked.get", "Player: %u not ingame while retrieving his LockedDungeons.", GUID_LOPART(guid));
+        TC_LOG_WARN("lfg.data.player.dungeons.locked.get", "Player: %u not ingame while retrieving his LockedDungeons.", guid.GetCounter());
         return lock;
     }
 
@@ -1609,20 +1609,20 @@ LfgLockMap const LFGMgr::GetLockedDungeons(uint64 guid)
     return lock;
 }
 
-uint8 LFGMgr::GetKicksLeft(uint64 guid)
+uint8 LFGMgr::GetKicksLeft(ObjectGuid guid)
 {
     uint8 kicks = GroupsStore[guid].GetKicksLeft();
-    TC_LOG_TRACE("lfg.data.group.kickleft.get", "Group: %u, Kicks left: %u", GUID_LOPART(guid), kicks);
+    TC_LOG_TRACE("lfg.data.group.kickleft.get", "Group: %u, Kicks left: %u", guid.GetCounter(), kicks);
     return kicks;
 }
 
-void LFGMgr::RestoreState(uint64 guid, char const* debugMsg)
+void LFGMgr::RestoreState(ObjectGuid guid, char const* debugMsg)
 {
-    if (IS_GROUP_GUID(guid))
+    if (guid.IsGroup())
     {
         LfgGroupData& data = GroupsStore[guid];
         TC_LOG_TRACE("lfg.data.group.state.restore", "Group: %u (%s), State: %s, Old state: %s",
-            GUID_LOPART(guid), debugMsg, GetStateString(data.GetState()).c_str(),
+            guid.GetCounter(), debugMsg, GetStateString(data.GetState()).c_str(),
             GetStateString(data.GetOldState()).c_str());
 
         data.RestoreState();
@@ -1631,20 +1631,20 @@ void LFGMgr::RestoreState(uint64 guid, char const* debugMsg)
     {
         LfgPlayerData& data = PlayersStore[guid];
         TC_LOG_TRACE("lfg.data.player.state.restore", "Player: %u (%s), State: %s, Old state: %s",
-            GUID_LOPART(guid), debugMsg, GetStateString(data.GetState()).c_str(),
+            guid.GetCounter(), debugMsg, GetStateString(data.GetState()).c_str(),
             GetStateString(data.GetOldState()).c_str());
 
         data.RestoreState();
     }
 }
 
-void LFGMgr::SetState(uint64 guid, LfgState state)
+void LFGMgr::SetState(ObjectGuid guid, LfgState state)
 {
-    if (IS_GROUP_GUID(guid))
+    if (guid.IsGroup())
     {
         LfgGroupData& data = GroupsStore[guid];
         TC_LOG_TRACE("lfg.data.group.state.set", "Group: %u, New state: %s, Previous: %s, Old state: %s",
-            GUID_LOPART(guid), GetStateString(state).c_str(), GetStateString(data.GetState()).c_str(),
+            guid.GetCounter(), GetStateString(state).c_str(), GetStateString(data.GetState()).c_str(),
             GetStateString(data.GetOldState()).c_str());
 
         data.SetState(state);
@@ -1653,64 +1653,64 @@ void LFGMgr::SetState(uint64 guid, LfgState state)
     {
         LfgPlayerData& data = PlayersStore[guid];
         TC_LOG_TRACE("lfg.data.player.state.set", "Player: %u, New state: %s, Previous: %s, OldState: %s",
-            GUID_LOPART(guid), GetStateString(state).c_str(), GetStateString(data.GetState()).c_str(),
+            guid.GetCounter(), GetStateString(state).c_str(), GetStateString(data.GetState()).c_str(),
             GetStateString(data.GetOldState()).c_str());
 
         data.SetState(state);
     }
 }
 
-void LFGMgr::SetDungeon(uint64 guid, uint32 dungeon)
+void LFGMgr::SetDungeon(ObjectGuid guid, uint32 dungeon)
 {
-    TC_LOG_TRACE("lfg.data.group.dungeon.set", "Group: %u, Dungeon: %u", GUID_LOPART(guid), dungeon);
+    TC_LOG_TRACE("lfg.data.group.dungeon.set", "Group: %u, Dungeon: %u", guid.GetCounter(), dungeon);
     GroupsStore[guid].SetDungeon(dungeon);
 }
 
-void LFGMgr::SetRoles(uint64 guid, uint8 roles)
+void LFGMgr::SetRoles(ObjectGuid guid, uint8 roles)
 {
-    TC_LOG_TRACE("lfg.data.player.role.set", "Player: %u, Roles: %u", GUID_LOPART(guid), roles);
+    TC_LOG_TRACE("lfg.data.player.role.set", "Player: %u, Roles: %u", guid.GetCounter(), roles);
     PlayersStore[guid].SetRoles(roles);
 }
 
-void LFGMgr::SetComment(uint64 guid, std::string const& comment)
+void LFGMgr::SetComment(ObjectGuid guid, std::string const& comment)
 {
-    TC_LOG_TRACE("lfg.data.player.comment.set", "Player: %u, Comment: %s", GUID_LOPART(guid), comment.c_str());
+    TC_LOG_TRACE("lfg.data.player.comment.set", "Player: %u, Comment: %s", guid.GetCounter(), comment.c_str());
     PlayersStore[guid].SetComment(comment);
 }
 
-void LFGMgr::SetSelectedDungeons(uint64 guid, LfgDungeonSet const& dungeons)
+void LFGMgr::SetSelectedDungeons(ObjectGuid guid, LfgDungeonSet const& dungeons)
 {
-    TC_LOG_TRACE("lfg.data.player.dungeon.selected.set", "Player: %u, Dungeons: %s", GUID_LOPART(guid), ConcatenateDungeons(dungeons).c_str());
+    TC_LOG_TRACE("lfg.data.player.dungeon.selected.set", "Player: %u, Dungeons: %s", guid.GetCounter(), ConcatenateDungeons(dungeons).c_str());
     PlayersStore[guid].SetSelectedDungeons(dungeons);
 }
 
-void LFGMgr::DecreaseKicksLeft(uint64 guid)
+void LFGMgr::DecreaseKicksLeft(ObjectGuid guid)
 {
     GroupsStore[guid].DecreaseKicksLeft();
-    TC_LOG_TRACE("lfg.data.group.kicksleft.decrease", "Group: %u, Kicks: %u", GUID_LOPART(guid), GroupsStore[guid].GetKicksLeft());
+    TC_LOG_TRACE("lfg.data.group.kicksleft.decrease", "Group: %u, Kicks: %u", guid.GetCounter(), GroupsStore[guid].GetKicksLeft());
 }
 
-void LFGMgr::RemovePlayerData(uint64 guid)
+void LFGMgr::RemovePlayerData(ObjectGuid guid)
 {
-    TC_LOG_TRACE("lfg.data.player.remove", "Player: %u", GUID_LOPART(guid));
+    TC_LOG_TRACE("lfg.data.player.remove", "Player: %u", guid.GetCounter());
     LfgPlayerDataContainer::iterator it = PlayersStore.find(guid);
     if (it != PlayersStore.end())
         PlayersStore.erase(it);
 }
 
-void LFGMgr::RemoveGroupData(uint64 guid)
+void LFGMgr::RemoveGroupData(ObjectGuid guid)
 {
-    TC_LOG_TRACE("lfg.data.group.remove", "Group: %u", GUID_LOPART(guid));
+    TC_LOG_TRACE("lfg.data.group.remove", "Group: %u", guid.GetCounter());
     LfgGroupDataContainer::iterator it = GroupsStore.find(guid);
     if (it == GroupsStore.end())
         return;
 
     LfgState state = GetState(guid);
     // If group is being formed after proposal success do nothing more
-    LfgGuidSet const& players = it->second.GetPlayers();
-    for (uint64 playerGUID : players)
+    GuidSet const& players = it->second.GetPlayers();
+    for (ObjectGuid playerGUID : players)
     {
-        SetGroup(playerGUID, 0);
+        SetGroup(playerGUID, ObjectGuid::Empty);
         if (state != LFG_STATE_PROPOSAL)
         {
             SetState(playerGUID, LFG_STATE_NONE);
@@ -1720,29 +1720,29 @@ void LFGMgr::RemoveGroupData(uint64 guid)
     GroupsStore.erase(it);
 }
 
-uint8 LFGMgr::GetTeam(uint64 guid)
+uint8 LFGMgr::GetTeam(ObjectGuid guid)
 {
     uint8 team = PlayersStore[guid].GetTeam();
-    TC_LOG_TRACE("lfg.data.player.team.get", "Player: %u, Team: %u", GUID_LOPART(guid), team);
+    TC_LOG_TRACE("lfg.data.player.team.get", "Player: %u, Team: %u", guid.GetCounter(), team);
     return team;
 }
 
-uint8 LFGMgr::RemovePlayerFromGroup(uint64 gguid, uint64 guid)
+uint8 LFGMgr::RemovePlayerFromGroup(ObjectGuid gguid, ObjectGuid guid)
 {
     return GroupsStore[gguid].RemovePlayer(guid);
 }
 
-void LFGMgr::AddPlayerToGroup(uint64 gguid, uint64 guid)
+void LFGMgr::AddPlayerToGroup(ObjectGuid gguid, ObjectGuid guid)
 {
     GroupsStore[gguid].AddPlayer(guid);
 }
 
-void LFGMgr::SetLeader(uint64 gguid, uint64 leader)
+void LFGMgr::SetLeader(ObjectGuid gguid, ObjectGuid leader)
 {
     GroupsStore[gguid].SetLeader(leader);
 }
 
-void LFGMgr::SetTeam(uint64 guid, uint8 team)
+void LFGMgr::SetTeam(ObjectGuid guid, uint8 team)
 {
     if (sWorld->getBoolConfig(CONFIG_ALLOW_TWO_SIDE_INTERACTION_GROUP))
         team = 0;
@@ -1750,93 +1750,91 @@ void LFGMgr::SetTeam(uint64 guid, uint8 team)
     PlayersStore[guid].SetTeam(team);
 }
 
-uint64 LFGMgr::GetGroup(uint64 guid)
+ObjectGuid LFGMgr::GetGroup(ObjectGuid guid)
 {
     return PlayersStore[guid].GetGroup();
 }
 
-void LFGMgr::SetGroup(uint64 guid, uint64 group)
+void LFGMgr::SetGroup(ObjectGuid guid, ObjectGuid group)
 {
     PlayersStore[guid].SetGroup(group);
 }
 
-LfgGuidSet const& LFGMgr::GetPlayers(uint64 guid)
+GuidSet const& LFGMgr::GetPlayers(ObjectGuid guid)
 {
     return GroupsStore[guid].GetPlayers();
 }
 
-uint8 LFGMgr::GetPlayerCount(uint64 guid)
+uint8 LFGMgr::GetPlayerCount(ObjectGuid guid)
 {
     return GroupsStore[guid].GetPlayerCount();
 }
 
-uint64 LFGMgr::GetLeader(uint64 guid)
+ObjectGuid LFGMgr::GetLeader(ObjectGuid guid)
 {
     return GroupsStore[guid].GetLeader();
 }
 
-bool LFGMgr::HasIgnore(uint64 guid1, uint64 guid2)
+bool LFGMgr::HasIgnore(ObjectGuid guid1, ObjectGuid guid2)
 {
     Player* plr1 = ObjectAccessor::FindPlayer(guid1);
     Player* plr2 = ObjectAccessor::FindPlayer(guid2);
-    uint32 low1 = GUID_LOPART(guid1);
-    uint32 low2 = GUID_LOPART(guid2);
-    return plr1 && plr2 && (plr1->GetSocial()->HasIgnore(low2) || plr2->GetSocial()->HasIgnore(low1));
+    return plr1 && plr2 && (plr1->GetSocial()->HasIgnore(guid2.GetCounter()) || plr2->GetSocial()->HasIgnore(guid1.GetCounter()));
 }
 
-void LFGMgr::SendLfgRoleChosen(uint64 guid, uint64 pguid, uint8 roles)
+void LFGMgr::SendLfgRoleChosen(ObjectGuid guid, ObjectGuid pguid, uint8 roles)
 {
     if (Player* player = ObjectAccessor::FindPlayer(guid))
         player->GetSession()->SendLfgRoleChosen(pguid, roles);
 }
 
-void LFGMgr::SendLfgRoleCheckUpdate(uint64 guid, LfgRoleCheck const& roleCheck)
+void LFGMgr::SendLfgRoleCheckUpdate(ObjectGuid guid, LfgRoleCheck const& roleCheck)
 {
     if (Player* player = ObjectAccessor::FindPlayer(guid))
         player->GetSession()->SendLfgRoleCheckUpdate(roleCheck);
 }
 
-void LFGMgr::SendLfgUpdateStatus(uint64 guid, LfgUpdateData const& data, bool party)
+void LFGMgr::SendLfgUpdateStatus(ObjectGuid guid, LfgUpdateData const& data, bool party)
 {
     if (Player* player = ObjectAccessor::FindPlayer(guid))
         player->GetSession()->SendLfgUpdateStatus(data, party);
 }
 
-void LFGMgr::SendLfgJoinResult(uint64 guid, LfgJoinResultData const& data)
+void LFGMgr::SendLfgJoinResult(ObjectGuid guid, LfgJoinResultData const& data)
 {
     if (Player* player = ObjectAccessor::FindPlayer(guid))
         player->GetSession()->SendLfgJoinResult(data);
 }
 
-void LFGMgr::SendLfgBootProposalUpdate(uint64 guid, LfgPlayerBoot const& boot)
+void LFGMgr::SendLfgBootProposalUpdate(ObjectGuid guid, LfgPlayerBoot const& boot)
 {
     if (Player* player = ObjectAccessor::FindPlayer(guid))
         player->GetSession()->SendLfgBootProposalUpdate(boot);
 }
 
-void LFGMgr::SendLfgUpdateProposal(uint64 guid, LfgProposal const& proposal)
+void LFGMgr::SendLfgUpdateProposal(ObjectGuid guid, LfgProposal const& proposal)
 {
     if (Player* player = ObjectAccessor::FindPlayer(guid))
         player->GetSession()->SendLfgUpdateProposal(proposal);
 }
 
-void LFGMgr::SendLfgQueueStatus(uint64 guid, LfgQueueStatusData const& data)
+void LFGMgr::SendLfgQueueStatus(ObjectGuid guid, LfgQueueStatusData const& data)
 {
     if (Player* player = ObjectAccessor::FindPlayer(guid))
         player->GetSession()->SendLfgQueueStatus(data);
 }
 
-bool LFGMgr::IsLfgGroup(uint64 guid)
+bool LFGMgr::IsLfgGroup(ObjectGuid guid)
 {
-    return guid && IS_GROUP_GUID(guid) && GroupsStore[guid].IsLfgGroup();
+    return guid && guid.IsGroup() && GroupsStore[guid].IsLfgGroup();
 }
 
-uint8 LFGMgr::GetQueueId(uint64 guid)
+uint8 LFGMgr::GetQueueId(ObjectGuid guid)
 {
-    if (IS_GROUP_GUID(guid))
+    if (guid.IsGroup())
     {
-        LfgGuidSet const& players = GetPlayers(guid);
-        uint64 pguid = players.empty() ? 0 : (*players.begin());
+        GuidSet const& players = GetPlayers(guid);
+        ObjectGuid pguid = players.empty() ? ObjectGuid::Empty : (*players.begin());
         if (pguid)
             return GetTeam(pguid);
     }
@@ -1844,24 +1842,24 @@ uint8 LFGMgr::GetQueueId(uint64 guid)
     return GetTeam(guid);
 }
 
-LFGQueue& LFGMgr::GetQueue(uint64 guid)
+LFGQueue& LFGMgr::GetQueue(ObjectGuid guid)
 {
     uint8 queueId = GetQueueId(guid);
     return QueuesStore[queueId];
 }
 
-bool LFGMgr::AllQueued(LfgGuidList const& check)
+bool LFGMgr::AllQueued(GuidList const& check)
 {
     if (check.empty())
         return false;
 
-    for (LfgGuidList::const_iterator it = check.begin(); it != check.end(); ++it)
+    for (GuidList::const_iterator it = check.begin(); it != check.end(); ++it)
         if (GetState(*it) != LFG_STATE_QUEUED)
             return false;
     return true;
 }
 
-time_t LFGMgr::GetQueueJoinTime(uint64 guid)
+time_t LFGMgr::GetQueueJoinTime(ObjectGuid guid)
 {
     uint8 queueId = GetQueueId(guid);
     LfgQueueContainer::const_iterator itr = QueuesStore.find(queueId);
@@ -1892,7 +1890,7 @@ void LFGMgr::SetOptions(uint32 options)
     m_options = options;
 }
 
-LfgUpdateData LFGMgr::GetLfgStatus(uint64 guid)
+LfgUpdateData LFGMgr::GetLfgStatus(ObjectGuid guid)
 {
     LfgPlayerData& playerData = PlayersStore[guid];
     return LfgUpdateData(LFG_UPDATETYPE_UPDATE_STATUS, playerData.GetState(), playerData.GetSelectedDungeons());
@@ -1930,7 +1928,7 @@ std::string LFGMgr::DumpQueueInfo(bool full)
     return o.str();
 }
 
-void LFGMgr::SetupGroupMember(uint64 guid, uint64 gguid)
+void LFGMgr::SetupGroupMember(ObjectGuid guid, ObjectGuid gguid)
 {
     LfgDungeonSet dungeons;
     dungeons.insert(GetDungeon(gguid));
@@ -1940,7 +1938,7 @@ void LFGMgr::SetupGroupMember(uint64 guid, uint64 gguid)
     AddPlayerToGroup(gguid, guid);
 }
 
-bool LFGMgr::selectedRandomLfgDungeon(uint64 guid)
+bool LFGMgr::selectedRandomLfgDungeon(ObjectGuid guid)
 {
     if (GetState(guid) != LFG_STATE_NONE)
     {
@@ -1956,9 +1954,9 @@ bool LFGMgr::selectedRandomLfgDungeon(uint64 guid)
     return false;
 }
 
-bool LFGMgr::inLfgDungeonMap(uint64 guid, uint32 map, Difficulty difficulty)
+bool LFGMgr::inLfgDungeonMap(ObjectGuid guid, uint32 map, Difficulty difficulty)
 {
-    if (!IS_GROUP_GUID(guid))
+    if (!guid.IsGroup())
         guid = GetGroup(guid);
 
     if (uint32 dungeonId = GetDungeon(guid, true))
diff --git a/src/server/game/DungeonFinding/LFGMgr.h b/src/server/game/DungeonFinding/LFGMgr.h
index b04b4f1a7ab..343705a58ab 100644
--- a/src/server/game/DungeonFinding/LFGMgr.h
+++ b/src/server/game/DungeonFinding/LFGMgr.h
@@ -138,13 +138,13 @@ typedef std::map<uint8, LFGQueue> LfgQueueContainer;
 typedef std::multimap<uint32, LfgReward const*> LfgRewardContainer;
 typedef std::pair<LfgRewardContainer::const_iterator, LfgRewardContainer::const_iterator> LfgRewardContainerBounds;
 typedef std::map<uint8, LfgDungeonSet> LfgCachedDungeonContainer;
-typedef std::map<uint64, LfgAnswer> LfgAnswerContainer;
-typedef std::map<uint64, LfgRoleCheck> LfgRoleCheckContainer;
+typedef std::map<ObjectGuid, LfgAnswer> LfgAnswerContainer;
+typedef std::map<ObjectGuid, LfgRoleCheck> LfgRoleCheckContainer;
 typedef std::map<uint32, LfgProposal> LfgProposalContainer;
-typedef std::map<uint64, LfgProposalPlayer> LfgProposalPlayerContainer;
-typedef std::map<uint64, LfgPlayerBoot> LfgPlayerBootContainer;
-typedef std::map<uint64, LfgGroupData> LfgGroupDataContainer;
-typedef std::map<uint64, LfgPlayerData> LfgPlayerDataContainer;
+typedef std::map<ObjectGuid, LfgProposalPlayer> LfgProposalPlayerContainer;
+typedef std::map<ObjectGuid, LfgPlayerBoot> LfgPlayerBootContainer;
+typedef std::map<ObjectGuid, LfgGroupData> LfgGroupDataContainer;
+typedef std::map<ObjectGuid, LfgPlayerData> LfgPlayerDataContainer;
 typedef std::unordered_map<uint32, LFGDungeonData> LFGDungeonContainer;
 
 // Data needed by SMSG_LFG_JOIN_RESULT
@@ -218,29 +218,29 @@ struct LfgReward
 /// Stores player data related to proposal to join
 struct LfgProposalPlayer
 {
-    LfgProposalPlayer(): role(0), accept(LFG_ANSWER_PENDING), group(0) { }
+    LfgProposalPlayer(): role(0), accept(LFG_ANSWER_PENDING), group() { }
     uint8 role;                                            ///< Proposed role
     LfgAnswer accept;                                      ///< Accept status (-1 not answer | 0 Not agree | 1 agree)
-    uint64 group;                                          ///< Original group guid. 0 if no original group
+    ObjectGuid group;                                      ///< Original group guid. 0 if no original group
 };
 
 /// Stores group data related to proposal to join
 struct LfgProposal
 {
     LfgProposal(uint32 dungeon = 0): id(0), dungeonId(dungeon), state(LFG_PROPOSAL_INITIATING),
-        group(0), leader(0), cancelTime(0), encounters(0), isNew(true)
+        group(), leader(), cancelTime(0), encounters(0), isNew(true)
         { }
 
     uint32 id;                                             ///< Proposal Id
     uint32 dungeonId;                                      ///< Dungeon to join
     LfgProposalState state;                                ///< State of the proposal
-    uint64 group;                                          ///< Proposal group (0 if new)
-    uint64 leader;                                         ///< Leader guid.
+    ObjectGuid group;                                      ///< Proposal group (0 if new)
+    ObjectGuid leader;                                     ///< Leader guid.
     time_t cancelTime;                                     ///< Time when we will cancel this proposal
     uint32 encounters;                                     ///< Dungeon Encounters
     bool isNew;                                            ///< Determines if it's new group or not
-    LfgGuidList queues;                                    ///< Queue Ids to remove/readd
-    LfgGuidList showorder;                                 ///< Show order in update window
+    GuidList queues;                                       ///< Queue Ids to remove/readd
+    GuidList showorder;                                    ///< Show order in update window
     LfgProposalPlayerContainer players;                    ///< Players data
 };
 
@@ -252,7 +252,7 @@ struct LfgRoleCheck
     LfgRoleCheckState state;                               ///< State of the rolecheck
     LfgDungeonSet dungeons;                                ///< Dungeons group is applying for (expanded random dungeons)
     uint32 rDungeonId;                                     ///< Random Dungeon Id.
-    uint64 leader;                                         ///< Leader of the group
+    ObjectGuid leader;                                     ///< Leader of the group
 };
 
 /// Stores information of a current vote to kick someone from a group
@@ -261,7 +261,7 @@ struct LfgPlayerBoot
     time_t cancelTime;                                     ///< Time left to vote
     bool inProgress;                                       ///< Vote in progress
     LfgAnswerContainer votes;                              ///< Player votes (-1 not answer | 0 Not agree | 1 agree)
-    uint64 victim;                                         ///< Player guid to be kicked (can't vote)
+    ObjectGuid victim;                                     ///< Player guid to be kicked (can't vote)
     std::string reason;                                    ///< kick reason
 };
 
@@ -313,7 +313,7 @@ class LFGMgr
 
         // World.cpp
         /// Finish the dungeon for the given group. All check are performed using internal lfg data
-        void FinishDungeon(uint64 gguid, uint32 dungeonId);
+        void FinishDungeon(ObjectGuid gguid, uint32 dungeonId);
         /// Loads rewards for random dungeons
         void LoadRewards();
         /// Loads dungeons from dbc and adds teleport coords
@@ -321,31 +321,31 @@ class LFGMgr
 
         // Multiple files
         /// Check if given guid applied for random dungeon
-        bool selectedRandomLfgDungeon(uint64 guid);
+        bool selectedRandomLfgDungeon(ObjectGuid guid);
         /// Check if given guid applied for given map and difficulty. Used to know
-        bool inLfgDungeonMap(uint64 guid, uint32 map, Difficulty difficulty);
+        bool inLfgDungeonMap(ObjectGuid guid, uint32 map, Difficulty difficulty);
         /// Get selected dungeons
-        LfgDungeonSet const& GetSelectedDungeons(uint64 guid);
+        LfgDungeonSet const& GetSelectedDungeons(ObjectGuid guid);
         /// Get current lfg state
-        LfgState GetState(uint64 guid);
+        LfgState GetState(ObjectGuid guid);
         /// Get current dungeon
-        uint32 GetDungeon(uint64 guid, bool asId = true);
+        uint32 GetDungeon(ObjectGuid guid, bool asId = true);
         /// Get the map id of the current dungeon
-        uint32 GetDungeonMapId(uint64 guid);
+        uint32 GetDungeonMapId(ObjectGuid guid);
         /// Get kicks left in current group
-        uint8 GetKicksLeft(uint64 gguid);
+        uint8 GetKicksLeft(ObjectGuid gguid);
         /// Load Lfg group info from DB
-        void _LoadFromDB(Field* fields, uint64 guid);
+        void _LoadFromDB(Field* fields, ObjectGuid guid);
         /// Initializes player data after loading group data from DB
-        void SetupGroupMember(uint64 guid, uint64 gguid);
+        void SetupGroupMember(ObjectGuid guid, ObjectGuid gguid);
         /// Return Lfg dungeon entry for given dungeon id
         uint32 GetLFGDungeonEntry(uint32 id);
 
         // cs_lfg
         /// Get current player roles
-        uint8 GetRoles(uint64 guid);
+        uint8 GetRoles(ObjectGuid guid);
         /// Get current player comment (used for LFR)
-        std::string const& GetComment(uint64 gguid);
+        std::string const& GetComment(ObjectGuid gguid);
         /// Gets current lfg options
         uint32 GetOptions();
         /// Sets new lfg options
@@ -359,27 +359,27 @@ class LFGMgr
 
         // LFGScripts
         /// Get leader of the group (using internal data)
-        uint64 GetLeader(uint64 guid);
+        ObjectGuid GetLeader(ObjectGuid guid);
         /// Sets player team
-        void SetTeam(uint64 guid, uint8 team);
+        void SetTeam(ObjectGuid guid, uint8 team);
         /// Sets player group
-        void SetGroup(uint64 guid, uint64 group);
+        void SetGroup(ObjectGuid guid, ObjectGuid group);
         /// Gets player group
-        uint64 GetGroup(uint64 guid);
+        ObjectGuid GetGroup(ObjectGuid guid);
         /// Sets the leader of the group
-        void SetLeader(uint64 gguid, uint64 leader);
+        void SetLeader(ObjectGuid gguid, ObjectGuid leader);
         /// Removes saved group data
-        void RemoveGroupData(uint64 guid);
+        void RemoveGroupData(ObjectGuid guid);
         /// Removes a player from a group
-        uint8 RemovePlayerFromGroup(uint64 gguid, uint64 guid);
+        uint8 RemovePlayerFromGroup(ObjectGuid gguid, ObjectGuid guid);
         /// Adds player to group
-        void AddPlayerToGroup(uint64 gguid, uint64 guid);
+        void AddPlayerToGroup(ObjectGuid gguid, ObjectGuid guid);
 
         // LFGHandler
         /// Get locked dungeons
-        LfgLockMap const GetLockedDungeons(uint64 guid);
+        LfgLockMap const GetLockedDungeons(ObjectGuid guid);
         /// Returns current lfg status
-        LfgUpdateData GetLfgStatus(uint64 guid);
+        LfgUpdateData GetLfgStatus(ObjectGuid guid);
         /// Checks if Seasonal dungeon is active
         bool IsSeasonActive(uint32 dungeonId);
         /// Gets the random dungeon reward corresponding to given dungeon and player level
@@ -389,55 +389,55 @@ class LFGMgr
         /// Teleport a player to/from selected dungeon
         void TeleportPlayer(Player* player, bool out, bool fromOpcode = false);
         /// Inits new proposal to boot a player
-        void InitBoot(uint64 gguid, uint64 kguid, uint64 vguid, std::string const& reason);
+        void InitBoot(ObjectGuid gguid, ObjectGuid kguid, ObjectGuid vguid, std::string const& reason);
         /// Updates player boot proposal with new player answer
-        void UpdateBoot(uint64 guid, bool accept);
+        void UpdateBoot(ObjectGuid guid, bool accept);
         /// Updates proposal to join dungeon with player answer
-        void UpdateProposal(uint32 proposalId, uint64 guid, bool accept);
+        void UpdateProposal(uint32 proposalId, ObjectGuid guid, bool accept);
         /// Updates the role check with player answer
-        void UpdateRoleCheck(uint64 gguid, uint64 guid = 0, uint8 roles = PLAYER_ROLE_NONE);
+        void UpdateRoleCheck(ObjectGuid gguid, ObjectGuid guid = ObjectGuid::Empty, uint8 roles = PLAYER_ROLE_NONE);
         /// Sets player lfg roles
-        void SetRoles(uint64 guid, uint8 roles);
+        void SetRoles(ObjectGuid guid, uint8 roles);
         /// Sets player lfr comment
-        void SetComment(uint64 guid, std::string const& comment);
+        void SetComment(ObjectGuid guid, std::string const& comment);
         /// Join Lfg with selected roles, dungeons and comment
         void JoinLfg(Player* player, uint8 roles, LfgDungeonSet& dungeons, std::string const& comment);
         /// Leaves lfg
-        void LeaveLfg(uint64 guid);
+        void LeaveLfg(ObjectGuid guid);
 
         // LfgQueue
         /// Get last lfg state (NONE, DUNGEON or FINISHED_DUNGEON)
-        LfgState GetOldState(uint64 guid);
+        LfgState GetOldState(ObjectGuid guid);
         /// Check if given group guid is lfg
-        bool IsLfgGroup(uint64 guid);
+        bool IsLfgGroup(ObjectGuid guid);
         /// Gets the player count of given group
-        uint8 GetPlayerCount(uint64 guid);
+        uint8 GetPlayerCount(ObjectGuid guid);
         /// Add a new Proposal
         uint32 AddProposal(LfgProposal& proposal);
         /// Returns queue id
-        uint8 GetQueueId(uint64 guid);
+        uint8 GetQueueId(ObjectGuid guid);
         /// Checks if all players are queued
-        bool AllQueued(LfgGuidList const& check);
+        bool AllQueued(GuidList const& check);
         /// Gets queue join time
-        time_t GetQueueJoinTime(uint64 guid);
+        time_t GetQueueJoinTime(ObjectGuid guid);
         /// Checks if given roles match, modifies given roles map with new roles
         static bool CheckGroupRoles(LfgRolesMap &groles, bool removeLeaderFlag = true);
         /// Checks if given players are ignoring each other
-        static bool HasIgnore(uint64 guid1, uint64 guid2);
+        static bool HasIgnore(ObjectGuid guid1, ObjectGuid guid2);
         /// Sends queue status to player
-        static void SendLfgQueueStatus(uint64 guid, LfgQueueStatusData const& data);
+        static void SendLfgQueueStatus(ObjectGuid guid, LfgQueueStatusData const& data);
 
     private:
-        uint8 GetTeam(uint64 guid);
-        void RestoreState(uint64 guid, char const* debugMsg);
-        void ClearState(uint64 guid, char const* debugMsg);
-        void SetDungeon(uint64 guid, uint32 dungeon);
-        void SetSelectedDungeons(uint64 guid, LfgDungeonSet const& dungeons);
-        void DecreaseKicksLeft(uint64 guid);
-        void SetState(uint64 guid, LfgState state);
-        void RemovePlayerData(uint64 guid);
-        void GetCompatibleDungeons(LfgDungeonSet& dungeons, LfgGuidSet const& players, LfgLockPartyMap& lockMap);
-        void _SaveToDB(uint64 guid, uint32 db_guid);
+        uint8 GetTeam(ObjectGuid guid);
+        void RestoreState(ObjectGuid guid, char const* debugMsg);
+        void ClearState(ObjectGuid guid, char const* debugMsg);
+        void SetDungeon(ObjectGuid guid, uint32 dungeon);
+        void SetSelectedDungeons(ObjectGuid guid, LfgDungeonSet const& dungeons);
+        void DecreaseKicksLeft(ObjectGuid guid);
+        void SetState(ObjectGuid guid, LfgState state);
+        void RemovePlayerData(ObjectGuid guid);
+        void GetCompatibleDungeons(LfgDungeonSet& dungeons, GuidSet const& players, LfgLockPartyMap& lockMap);
+        void _SaveToDB(ObjectGuid guid, uint32 db_guid);
         LFGDungeonData const* GetLFGDungeon(uint32 id);
 
         // Proposals
@@ -445,19 +445,19 @@ class LFGMgr
         void MakeNewGroup(LfgProposal const& proposal);
 
         // Generic
-        LFGQueue& GetQueue(uint64 guid);
+        LFGQueue& GetQueue(ObjectGuid guid);
 
         LfgDungeonSet const& GetDungeonsByRandom(uint32 randomdungeon);
         LfgType GetDungeonType(uint32 dungeon);
 
-        void SendLfgBootProposalUpdate(uint64 guid, LfgPlayerBoot const& boot);
-        void SendLfgJoinResult(uint64 guid, LfgJoinResultData const& data);
-        void SendLfgRoleChosen(uint64 guid, uint64 pguid, uint8 roles);
-        void SendLfgRoleCheckUpdate(uint64 guid, LfgRoleCheck const& roleCheck);
-        void SendLfgUpdateStatus(uint64 guid, LfgUpdateData const& data, bool party);
-        void SendLfgUpdateProposal(uint64 guid, LfgProposal const& proposal);
+        void SendLfgBootProposalUpdate(ObjectGuid guid, LfgPlayerBoot const& boot);
+        void SendLfgJoinResult(ObjectGuid guid, LfgJoinResultData const& data);
+        void SendLfgRoleChosen(ObjectGuid guid, ObjectGuid pguid, uint8 roles);
+        void SendLfgRoleCheckUpdate(ObjectGuid guid, LfgRoleCheck const& roleCheck);
+        void SendLfgUpdateStatus(ObjectGuid guid, LfgUpdateData const& data, bool party);
+        void SendLfgUpdateProposal(ObjectGuid guid, LfgProposal const& proposal);
 
-        LfgGuidSet const& GetPlayers(uint64 guid);
+        GuidSet const& GetPlayers(ObjectGuid guid);
 
         // General variables
         uint32 m_QueueTimer;                               ///< used to check interval of update
diff --git a/src/server/game/DungeonFinding/LFGPlayerData.cpp b/src/server/game/DungeonFinding/LFGPlayerData.cpp
index 84b93543d7f..6be50be9b9c 100644
--- a/src/server/game/DungeonFinding/LFGPlayerData.cpp
+++ b/src/server/game/DungeonFinding/LFGPlayerData.cpp
@@ -21,7 +21,7 @@ namespace lfg
 {
 
 LfgPlayerData::LfgPlayerData(): m_State(LFG_STATE_NONE), m_OldState(LFG_STATE_NONE),
-    m_Team(0), m_Group(0), m_Roles(0), m_Comment("")
+    m_Team(0), m_Group(), m_Roles(0), m_Comment("")
 { }
 
 LfgPlayerData::~LfgPlayerData() { }
@@ -34,7 +34,7 @@ void LfgPlayerData::SetState(LfgState state)
         case LFG_STATE_FINISHED_DUNGEON:
             m_Roles = 0;
             m_SelectedDungeons.clear();
-            m_Comment = "";
+            m_Comment.clear();
             // No break on purpose
         case LFG_STATE_DUNGEON:
             m_OldState = state;
@@ -59,7 +59,7 @@ void LfgPlayerData::SetTeam(uint8 team)
     m_Team = team;
 }
 
-void LfgPlayerData::SetGroup(uint64 group)
+void LfgPlayerData::SetGroup(ObjectGuid group)
 {
     m_Group = group;
 }
@@ -94,7 +94,7 @@ uint8 LfgPlayerData::GetTeam() const
     return m_Team;
 }
 
-uint64 LfgPlayerData::GetGroup() const
+ObjectGuid LfgPlayerData::GetGroup() const
 {
     return m_Group;
 }
diff --git a/src/server/game/DungeonFinding/LFGPlayerData.h b/src/server/game/DungeonFinding/LFGPlayerData.h
index 996764e7620..160fd221630 100644
--- a/src/server/game/DungeonFinding/LFGPlayerData.h
+++ b/src/server/game/DungeonFinding/LFGPlayerData.h
@@ -36,7 +36,7 @@ class LfgPlayerData
         void SetState(LfgState state);
         void RestoreState();
         void SetTeam(uint8 team);
-        void SetGroup(uint64 group);
+        void SetGroup(ObjectGuid group);
 
         // Queue
         void SetRoles(uint8 roles);
@@ -47,7 +47,7 @@ class LfgPlayerData
         LfgState GetState() const;
         LfgState GetOldState() const;
         uint8 GetTeam() const;
-        uint64 GetGroup() const;
+        ObjectGuid GetGroup() const;
 
         // Queue
         uint8 GetRoles() const;
@@ -60,7 +60,7 @@ class LfgPlayerData
         LfgState m_OldState;                               ///< Old State - Used to restore state after failed Rolecheck/Proposal
         // Player
         uint8 m_Team;                                      ///< Player team - determines the queue to join
-        uint64 m_Group;                                    ///< Original group of player when joined LFG
+        ObjectGuid m_Group;                                ///< Original group of player when joined LFG
 
         // Queue
         uint8 m_Roles;                                     ///< Roles the player selected when joined LFG
diff --git a/src/server/game/DungeonFinding/LFGQueue.cpp b/src/server/game/DungeonFinding/LFGQueue.cpp
index a44c7780c6b..df08b55a856 100644
--- a/src/server/game/DungeonFinding/LFGQueue.cpp
+++ b/src/server/game/DungeonFinding/LFGQueue.cpp
@@ -36,20 +36,20 @@ namespace lfg
    @param[in]     check list of guids
    @returns Concatenated string
 */
-std::string ConcatenateGuids(LfgGuidList const& check)
+std::string ConcatenateGuids(GuidList const& check)
 {
     if (check.empty())
         return "";
 
     // need the guids in order to avoid duplicates
-    LfgGuidSet guids(check.begin(), check.end());
+    GuidSet guids(check.begin(), check.end());
 
     std::ostringstream o;
 
-    LfgGuidSet::const_iterator it = guids.begin();
-    o << (*it);
+    GuidSet::const_iterator it = guids.begin();
+    o << it->GetRawValue();
     for (++it; it != guids.end(); ++it)
-        o << '|' << (*it);
+        o << '|' << it->GetRawValue();
 
     return o.str();
 }
@@ -83,26 +83,26 @@ char const* GetCompatibleString(LfgCompatibility compatibles)
     }
 }
 
-void LFGQueue::AddToQueue(uint64 guid)
+void LFGQueue::AddToQueue(ObjectGuid guid)
 {
     LfgQueueDataContainer::iterator itQueue = QueueDataStore.find(guid);
     if (itQueue == QueueDataStore.end())
     {
-        TC_LOG_ERROR("lfg.queue.add", "Queue data not found for [" UI64FMTD "]", guid);
+        TC_LOG_ERROR("lfg.queue.add", "Queue data not found for [%s]", guid.ToString().c_str());
         return;
     }
 
     AddToNewQueue(guid);
 }
 
-void LFGQueue::RemoveFromQueue(uint64 guid)
+void LFGQueue::RemoveFromQueue(ObjectGuid guid)
 {
     RemoveFromNewQueue(guid);
     RemoveFromCurrentQueue(guid);
     RemoveFromCompatibles(guid);
 
     std::ostringstream o;
-    o << guid;
+    o << guid.GetRawValue();
     std::string sguid = o.str();
 
     LfgQueueDataContainer::iterator itDelete = QueueDataStore.end();
@@ -122,33 +122,33 @@ void LFGQueue::RemoveFromQueue(uint64 guid)
         QueueDataStore.erase(itDelete);
 }
 
-void LFGQueue::AddToNewQueue(uint64 guid)
+void LFGQueue::AddToNewQueue(ObjectGuid guid)
 {
     newToQueueStore.push_back(guid);
 }
 
-void LFGQueue::RemoveFromNewQueue(uint64 guid)
+void LFGQueue::RemoveFromNewQueue(ObjectGuid guid)
 {
     newToQueueStore.remove(guid);
 }
 
-void LFGQueue::AddToCurrentQueue(uint64 guid)
+void LFGQueue::AddToCurrentQueue(ObjectGuid guid)
 {
     currentQueueStore.push_back(guid);
 }
 
-void LFGQueue::RemoveFromCurrentQueue(uint64 guid)
+void LFGQueue::RemoveFromCurrentQueue(ObjectGuid guid)
 {
     currentQueueStore.remove(guid);
 }
 
-void LFGQueue::AddQueueData(uint64 guid, time_t joinTime, LfgDungeonSet const& dungeons, LfgRolesMap const& rolesMap)
+void LFGQueue::AddQueueData(ObjectGuid guid, time_t joinTime, LfgDungeonSet const& dungeons, LfgRolesMap const& rolesMap)
 {
     QueueDataStore[guid] = LfgQueueData(joinTime, dungeons, rolesMap);
     AddToQueue(guid);
 }
 
-void LFGQueue::RemoveQueueData(uint64 guid)
+void LFGQueue::RemoveQueueData(ObjectGuid guid)
 {
     LfgQueueDataContainer::iterator it = QueueDataStore.find(guid);
     if (it != QueueDataStore.end())
@@ -188,13 +188,13 @@ void LFGQueue::UpdateWaitTimeDps(int32 waitTime, uint32 dungeonId)
 
    @param[in]     guid Guid to remove from compatible cache
 */
-void LFGQueue::RemoveFromCompatibles(uint64 guid)
+void LFGQueue::RemoveFromCompatibles(ObjectGuid guid)
 {
     std::stringstream out;
-    out << guid;
+    out << guid.GetRawValue();
     std::string strGuid = out.str();
 
-    TC_LOG_DEBUG("lfg.queue.data.compatibles.remove", "Removing [" UI64FMTD "]", guid);
+    TC_LOG_DEBUG("lfg.queue.data.compatibles.remove", "Removing %s", guid.ToString().c_str());
     for (LfgCompatibleContainer::iterator itNext = CompatibleMapStore.begin(); itNext != CompatibleMapStore.end();)
     {
         LfgCompatibleContainer::iterator it = itNext++;
@@ -247,16 +247,18 @@ LfgCompatibilityData* LFGQueue::GetCompatibilityData(std::string const& key)
 uint8 LFGQueue::FindGroups()
 {
     uint8 proposals = 0;
-    LfgGuidList firstNew;
+    GuidList firstNew;
     while (!newToQueueStore.empty())
     {
-        uint64 frontguid = newToQueueStore.front();
-        TC_LOG_DEBUG("lfg.queue.match.check.new", "Checking [" UI64FMTD "] newToQueue(%u), currentQueue(%u)", frontguid, uint32(newToQueueStore.size()), uint32(currentQueueStore.size()));
+        ObjectGuid frontguid = newToQueueStore.front();
+        TC_LOG_DEBUG("lfg.queue.match.check.new", "Checking [%s] newToQueue(%u), currentQueue(%u)", frontguid.ToString().c_str(),
+            uint32(newToQueueStore.size()), uint32(currentQueueStore.size()));
+
         firstNew.clear();
         firstNew.push_back(frontguid);
         RemoveFromNewQueue(frontguid);
 
-        LfgGuidList temporalList = currentQueueStore;
+        GuidList temporalList = currentQueueStore;
         LfgCompatibility compatibles = FindNewGroups(firstNew, temporalList);
 
         if (compatibles == LFG_COMPATIBLES_MATCH)
@@ -274,7 +276,7 @@ uint8 LFGQueue::FindGroups()
    @param[in]     all List of all other guids in main queue to match against
    @return LfgCompatibility type of compatibility between groups
 */
-LfgCompatibility LFGQueue::FindNewGroups(LfgGuidList& check, LfgGuidList& all)
+LfgCompatibility LFGQueue::FindNewGroups(GuidList& check, GuidList& all)
 {
     std::string strGuids = ConcatenateGuids(check);
     LfgCompatibility compatibles = GetCompatibles(strGuids);
@@ -312,7 +314,7 @@ LfgCompatibility LFGQueue::FindNewGroups(LfgGuidList& check, LfgGuidList& all)
    @param[in]     check List of guids to check compatibilities
    @return LfgCompatibility type of compatibility
 */
-LfgCompatibility LFGQueue::CheckCompatibility(LfgGuidList check)
+LfgCompatibility LFGQueue::CheckCompatibility(GuidList check)
 {
     std::string strGuids = ConcatenateGuids(check);
     LfgProposal proposal;
@@ -330,7 +332,7 @@ LfgCompatibility LFGQueue::CheckCompatibility(LfgGuidList check)
     // Check all-but-new compatiblitity
     if (check.size() > 2)
     {
-        uint64 frontGuid = check.front();
+        ObjectGuid frontGuid = check.front();
         check.pop_front();
 
         // Check all-but-new compatibilities (New, A, B, C, D) --> check(A, B, C, D)
@@ -347,20 +349,20 @@ LfgCompatibility LFGQueue::CheckCompatibility(LfgGuidList check)
     // Check if more than one LFG group and number of players joining
     uint8 numPlayers = 0;
     uint8 numLfgGroups = 0;
-    for (LfgGuidList::const_iterator it = check.begin(); it != check.end() && numLfgGroups < 2 && numPlayers <= MAXGROUPSIZE; ++it)
+    for (GuidList::const_iterator it = check.begin(); it != check.end() && numLfgGroups < 2 && numPlayers <= MAXGROUPSIZE; ++it)
     {
-        uint64 guid = (*it);
+        ObjectGuid guid = *it;
         LfgQueueDataContainer::iterator itQueue = QueueDataStore.find(guid);
         if (itQueue == QueueDataStore.end())
         {
-            TC_LOG_ERROR("lfg.queue.match.compatibility.check", "Guid: [" UI64FMTD "] is not queued but listed as queued!", guid);
+            TC_LOG_ERROR("lfg.queue.match.compatibility.check", "Guid: [%s] is not queued but listed as queued!", guid.ToString().c_str());
             RemoveFromQueue(guid);
             return LFG_COMPATIBILITY_PENDING;
         }
 
         // Store group so we don't need to call Mgr to get it later (if it's player group will be 0 otherwise would have joined as group)
         for (LfgRolesMap::const_iterator it2 = itQueue->second.roles.begin(); it2 != itQueue->second.roles.end(); ++it2)
-            proposalGroups[it2->first] = IS_GROUP_GUID(itQueue->first) ? itQueue->first : 0;
+            proposalGroups[it2->first] = itQueue->first.IsGroup() ? itQueue->first : ObjectGuid::Empty;
 
         numPlayers += itQueue->second.roles.size();
 
@@ -404,16 +406,16 @@ LfgCompatibility LFGQueue::CheckCompatibility(LfgGuidList check)
     // If it's single group no need to check for duplicate players, ignores, bad roles or bad dungeons as it's been checked before joining
     if (check.size() > 1)
     {
-        for (LfgGuidList::const_iterator it = check.begin(); it != check.end(); ++it)
+        for (GuidList::const_iterator it = check.begin(); it != check.end(); ++it)
         {
-            const LfgRolesMap &roles = QueueDataStore[(*it)].roles;
+            LfgRolesMap const& roles = QueueDataStore[(*it)].roles;
             for (LfgRolesMap::const_iterator itRoles = roles.begin(); itRoles != roles.end(); ++itRoles)
             {
                 LfgRolesMap::const_iterator itPlayer;
                 for (itPlayer = proposalRoles.begin(); itPlayer != proposalRoles.end(); ++itPlayer)
                 {
                     if (itRoles->first == itPlayer->first)
-                        TC_LOG_ERROR("lfg.queue.match.compatibility.check", "Guids: ERROR! Player multiple times in queue! [" UI64FMTD "]", itRoles->first);
+                        TC_LOG_ERROR("lfg.queue.match.compatibility.check", "Guids: ERROR! Player multiple times in queue! [%s]", itRoles->first.ToString().c_str());
                     else if (sLFGMgr->HasIgnore(itRoles->first, itPlayer->first))
                         break;
                 }
@@ -434,22 +436,22 @@ LfgCompatibility LFGQueue::CheckCompatibility(LfgGuidList check)
         {
             std::ostringstream o;
             for (LfgRolesMap::const_iterator it = debugRoles.begin(); it != debugRoles.end(); ++it)
-                o << ", " << it->first << ": " << GetRolesString(it->second);
+                o << ", " << it->first.GetRawValue() << ": " << GetRolesString(it->second);
 
             TC_LOG_DEBUG("lfg.queue.match.compatibility.check", "Guids: (%s) Roles not compatible%s", strGuids.c_str(), o.str().c_str());
             SetCompatibles(strGuids, LFG_INCOMPATIBLES_NO_ROLES);
             return LFG_INCOMPATIBLES_NO_ROLES;
         }
 
-        LfgGuidList::iterator itguid = check.begin();
+        GuidList::iterator itguid = check.begin();
         proposalDungeons = QueueDataStore[*itguid].dungeons;
         std::ostringstream o;
-        o << ", " << *itguid << ": (" << ConcatenateDungeons(proposalDungeons) << ")";
+        o << ", " << itguid->GetRawValue() << ": (" << ConcatenateDungeons(proposalDungeons) << ")";
         for (++itguid; itguid != check.end(); ++itguid)
         {
             LfgDungeonSet temporal;
-            LfgDungeonSet &dungeons = QueueDataStore[*itguid].dungeons;
-            o << ", " << *itguid << ": (" << ConcatenateDungeons(dungeons) << ")";
+            LfgDungeonSet& dungeons = QueueDataStore[*itguid].dungeons;
+            o << ", " << itguid->GetRawValue() << ": (" << ConcatenateDungeons(dungeons) << ")";
             std::set_intersection(proposalDungeons.begin(), proposalDungeons.end(), dungeons.begin(), dungeons.end(), std::inserter(temporal, temporal.begin()));
             proposalDungeons = temporal;
         }
@@ -463,7 +465,7 @@ LfgCompatibility LFGQueue::CheckCompatibility(LfgGuidList check)
     }
     else
     {
-        uint64 gguid = *check.begin();
+        ObjectGuid gguid = *check.begin();
         const LfgQueueData &queue = QueueDataStore[gguid];
         proposalDungeons = queue.dungeons;
         proposalRoles = queue.roles;
@@ -477,14 +479,14 @@ LfgCompatibility LFGQueue::CheckCompatibility(LfgGuidList check)
         LfgCompatibilityData data(LFG_COMPATIBLES_WITH_LESS_PLAYERS);
         data.roles = proposalRoles;
 
-        for (LfgGuidList::const_iterator itr = check.begin(); itr != check.end(); ++itr)
+        for (GuidList::const_iterator itr = check.begin(); itr != check.end(); ++itr)
             UpdateBestCompatibleInQueue(QueueDataStore.find(*itr), strGuids, data.roles);
 
         SetCompatibilityData(strGuids, data);
         return LFG_COMPATIBLES_WITH_LESS_PLAYERS;
     }
 
-    uint64 gguid = *check.begin();
+    ObjectGuid gguid = *check.begin();
     proposal.queues = check;
     proposal.isNew = numLfgGroups != 1 || sLFGMgr->GetOldState(gguid) != LFG_STATE_DUNGEON;
 
@@ -498,7 +500,7 @@ LfgCompatibility LFGQueue::CheckCompatibility(LfgGuidList check)
     // Create a new proposal
     proposal.cancelTime = time(NULL) + LFG_TIME_PROPOSAL;
     proposal.state = LFG_PROPOSAL_INITIATING;
-    proposal.leader = 0;
+    proposal.leader.Clear();
     proposal.dungeonId = Trinity::Containers::SelectRandomContainerElement(proposalDungeons);
 
     bool leader = false;
@@ -523,9 +525,9 @@ LfgCompatibility LFGQueue::CheckCompatibility(LfgGuidList check)
     }
 
     // Mark proposal members as not queued (but not remove queue data)
-    for (LfgGuidList::const_iterator itQueue = proposal.queues.begin(); itQueue != proposal.queues.end(); ++itQueue)
+    for (GuidList::const_iterator itQueue = proposal.queues.begin(); itQueue != proposal.queues.end(); ++itQueue)
     {
-        uint64 guid = (*itQueue);
+        ObjectGuid guid = (*itQueue);
         RemoveFromNewQueue(guid);
         RemoveFromCurrentQueue(guid);
     }
@@ -581,13 +583,13 @@ void LFGQueue::UpdateQueueTimers(uint8 queueId, time_t currTime)
         LfgQueueStatusData queueData(queueId, dungeonId, queueinfo.joinTime, waitTime, wtAvg, wtTank, wtHealer, wtDps, queuedTime, queueinfo.tanks, queueinfo.healers, queueinfo.dps);
         for (LfgRolesMap::const_iterator itPlayer = queueinfo.roles.begin(); itPlayer != queueinfo.roles.end(); ++itPlayer)
         {
-            uint64 pguid = itPlayer->first;
+            ObjectGuid pguid = itPlayer->first;
             LFGMgr::SendLfgQueueStatus(pguid, queueData);
         }
     }
 }
 
-time_t LFGQueue::GetJoinTime(uint64 guid) const
+time_t LFGQueue::GetJoinTime(ObjectGuid guid) const
 {
     LfgQueueDataContainer::const_iterator itr = QueueDataStore.find(guid);
     if (itr != QueueDataStore.end())
@@ -604,11 +606,11 @@ std::string LFGQueue::DumpQueueInfo() const
 
     for (uint8 i = 0; i < 2; ++i)
     {
-        LfgGuidList const& queue = i ? newToQueueStore : currentQueueStore;
-        for (LfgGuidList::const_iterator it = queue.begin(); it != queue.end(); ++it)
+        GuidList const& queue = i ? newToQueueStore : currentQueueStore;
+        for (GuidList::const_iterator it = queue.begin(); it != queue.end(); ++it)
         {
-            uint64 guid = *it;
-            if (IS_GROUP_GUID(guid))
+            ObjectGuid guid = *it;
+            if (guid.IsGroup())
             {
                 groups++;
                 playersInGroup += sLFGMgr->GetPlayerCount(guid);
@@ -635,9 +637,9 @@ std::string LFGQueue::DumpCompatibleInfo(bool full /* = false */) const
 
 void LFGQueue::FindBestCompatibleInQueue(LfgQueueDataContainer::iterator itrQueue)
 {
-    TC_LOG_DEBUG("lfg.queue.compatibles.find", "Guid: " UI64FMTD, itrQueue->first);
+    TC_LOG_DEBUG("lfg.queue.compatibles.find", "%s", itrQueue->first.ToString().c_str());
     std::ostringstream o;
-    o << itrQueue->first;
+    o << itrQueue->first.GetRawValue();
     std::string sguid = o.str();
 
     for (LfgCompatibleContainer::const_iterator itr = CompatibleMapStore.begin(); itr != CompatibleMapStore.end(); ++itr)
@@ -660,8 +662,8 @@ void LFGQueue::UpdateBestCompatibleInQueue(LfgQueueDataContainer::iterator itrQu
     if (size <= storedSize)
         return;
 
-    TC_LOG_DEBUG("lfg.queue.compatibles.update", "Changed (%s) to (%s) as best compatible group for " UI64FMTD,
-        queueData.bestCompatible.c_str(), key.c_str(), itrQueue->first);
+    TC_LOG_DEBUG("lfg.queue.compatibles.update", "Changed (%s) to (%s) as best compatible group for %s",
+        queueData.bestCompatible.c_str(), key.c_str(), itrQueue->first.ToString().c_str());
 
     queueData.bestCompatible = key;
     queueData.tanks = LFG_TANKS_NEEDED;
diff --git a/src/server/game/DungeonFinding/LFGQueue.h b/src/server/game/DungeonFinding/LFGQueue.h
index 0312c926991..333becd6e9d 100644
--- a/src/server/game/DungeonFinding/LFGQueue.h
+++ b/src/server/game/DungeonFinding/LFGQueue.h
@@ -78,7 +78,7 @@ struct LfgWaitTime
 
 typedef std::map<uint32, LfgWaitTime> LfgWaitTimesContainer;
 typedef std::map<std::string, LfgCompatibilityData> LfgCompatibleContainer;
-typedef std::map<uint64, LfgQueueData> LfgQueueDataContainer;
+typedef std::map<ObjectGuid, LfgQueueData> LfgQueueDataContainer;
 
 /**
     Stores all data related to queue
@@ -88,10 +88,10 @@ class LFGQueue
     public:
 
         // Add/Remove from queue
-        void AddToQueue(uint64 guid);
-        void RemoveFromQueue(uint64 guid);
-        void AddQueueData(uint64 guid, time_t joinTime, LfgDungeonSet const& dungeons, LfgRolesMap const& rolesMap);
-        void RemoveQueueData(uint64 guid);
+        void AddToQueue(ObjectGuid guid);
+        void RemoveFromQueue(ObjectGuid guid);
+        void AddQueueData(ObjectGuid guid, time_t joinTime, LfgDungeonSet const& dungeons, LfgRolesMap const& rolesMap);
+        void RemoveQueueData(ObjectGuid guid);
 
         // Update Timers (when proposal success)
         void UpdateWaitTimeAvg(int32 waitTime, uint32 dungeonId);
@@ -101,7 +101,7 @@ class LFGQueue
 
         // Update Queue timers
         void UpdateQueueTimers(uint8 queueId, time_t currTime);
-        time_t GetJoinTime(uint64 guid) const;
+        time_t GetJoinTime(ObjectGuid guid) const;
 
         // Find new group
         uint8 FindGroups();
@@ -112,24 +112,23 @@ class LFGQueue
 
     private:
         void SetQueueUpdateData(std::string const& strGuids, LfgRolesMap const& proposalRoles);
-        LfgRolesMap const& RemoveFromQueueUpdateData(uint64 guid);
 
-        void AddToNewQueue(uint64 guid);
-        void AddToCurrentQueue(uint64 guid);
-        void RemoveFromNewQueue(uint64 guid);
-        void RemoveFromCurrentQueue(uint64 guid);
+        void AddToNewQueue(ObjectGuid guid);
+        void AddToCurrentQueue(ObjectGuid guid);
+        void RemoveFromNewQueue(ObjectGuid guid);
+        void RemoveFromCurrentQueue(ObjectGuid guid);
 
         void SetCompatibles(std::string const& key, LfgCompatibility compatibles);
         LfgCompatibility GetCompatibles(std::string const& key);
-        void RemoveFromCompatibles(uint64 guid);
+        void RemoveFromCompatibles(ObjectGuid guid);
 
         void SetCompatibilityData(std::string const& key, LfgCompatibilityData const& compatibles);
         LfgCompatibilityData* GetCompatibilityData(std::string const& key);
         void FindBestCompatibleInQueue(LfgQueueDataContainer::iterator itrQueue);
         void UpdateBestCompatibleInQueue(LfgQueueDataContainer::iterator itrQueue, std::string const& key, LfgRolesMap const& roles);
 
-        LfgCompatibility FindNewGroups(LfgGuidList& check, LfgGuidList& all);
-        LfgCompatibility CheckCompatibility(LfgGuidList check);
+        LfgCompatibility FindNewGroups(GuidList& check, GuidList& all);
+        LfgCompatibility CheckCompatibility(GuidList check);
 
         // Queue
         LfgQueueDataContainer QueueDataStore;              ///< Queued groups
@@ -139,8 +138,8 @@ class LFGQueue
         LfgWaitTimesContainer waitTimesTankStore;          ///< Average wait time to find a group queuing as tank
         LfgWaitTimesContainer waitTimesHealerStore;        ///< Average wait time to find a group queuing as healer
         LfgWaitTimesContainer waitTimesDpsStore;           ///< Average wait time to find a group queuing as dps
-        LfgGuidList currentQueueStore;                     ///< Ordered list. Used to find groups
-        LfgGuidList newToQueueStore;                       ///< New groups to add to queue
+        GuidList currentQueueStore;                        ///< Ordered list. Used to find groups
+        GuidList newToQueueStore;                          ///< New groups to add to queue
 };
 
 } // namespace lfg
diff --git a/src/server/game/DungeonFinding/LFGScripts.cpp b/src/server/game/DungeonFinding/LFGScripts.cpp
index 6a38afb398d..bac1949d894 100644
--- a/src/server/game/DungeonFinding/LFGScripts.cpp
+++ b/src/server/game/DungeonFinding/LFGScripts.cpp
@@ -52,16 +52,16 @@ void LFGPlayerScript::OnLogin(Player* player, bool /*loginFirst*/)
         return;
 
     // Temporal: Trying to determine when group data and LFG data gets desynched
-    uint64 guid = player->GetGUID();
-    uint64 gguid = sLFGMgr->GetGroup(guid);
+    ObjectGuid guid = player->GetGUID();
+    ObjectGuid gguid = sLFGMgr->GetGroup(guid);
 
     if (Group const* group = player->GetGroup())
     {
-        uint64 gguid2 = group->GetGUID();
+        ObjectGuid gguid2 = group->GetGUID();
         if (gguid != gguid2)
         {
             TC_LOG_ERROR("lfg", "%s on group %u but LFG has group %u saved... Fixing.",
-                player->GetSession()->GetPlayerInfo().c_str(), GUID_LOPART(gguid2), GUID_LOPART(gguid));
+                player->GetSession()->GetPlayerInfo().c_str(), gguid2.GetCounter(), gguid.GetCounter());
             sLFGMgr->SetupGroupMember(guid, group->GetGUID());
         }
     }
@@ -104,24 +104,24 @@ void LFGPlayerScript::OnMapChanged(Player* player)
 
 LFGGroupScript::LFGGroupScript() : GroupScript("LFGGroupScript") { }
 
-void LFGGroupScript::OnAddMember(Group* group, uint64 guid)
+void LFGGroupScript::OnAddMember(Group* group, ObjectGuid guid)
 {
     if (!sLFGMgr->isOptionEnabled(LFG_OPTION_ENABLE_DUNGEON_FINDER | LFG_OPTION_ENABLE_RAID_BROWSER))
         return;
 
-    uint64 gguid = group->GetGUID();
-    uint64 leader = group->GetLeaderGUID();
+    ObjectGuid gguid = group->GetGUID();
+    ObjectGuid leader = group->GetLeaderGUID();
 
     if (leader == guid)
     {
-        TC_LOG_DEBUG("lfg", "LFGScripts::OnAddMember [" UI64FMTD "]: added [" UI64FMTD "] leader " UI64FMTD "]", gguid, guid, leader);
+        TC_LOG_DEBUG("lfg", "LFGScripts::OnAddMember [%s]: added [%s] leader [%s]", gguid.ToString().c_str(), guid.ToString().c_str(), leader.ToString().c_str());
         sLFGMgr->SetLeader(gguid, guid);
     }
     else
     {
         LfgState gstate = sLFGMgr->GetState(gguid);
         LfgState state = sLFGMgr->GetState(guid);
-        TC_LOG_DEBUG("lfg", "LFGScripts::OnAddMember [" UI64FMTD "]: added [" UI64FMTD "] leader " UI64FMTD "] gstate: %u, state: %u", gguid, guid, leader, gstate, state);
+        TC_LOG_DEBUG("lfg", "LFGScripts::OnAddMember [%s]: added [%s] leader [%s] gstate: %u, state: %u", gguid.ToString().c_str(), guid.ToString().c_str(), leader.ToString().c_str(), gstate, state);
 
         if (state == LFG_STATE_QUEUED)
             sLFGMgr->LeaveLfg(guid);
@@ -134,13 +134,14 @@ void LFGGroupScript::OnAddMember(Group* group, uint64 guid)
     sLFGMgr->AddPlayerToGroup(gguid, guid);
 }
 
-void LFGGroupScript::OnRemoveMember(Group* group, uint64 guid, RemoveMethod method, uint64 kicker, char const* reason)
+void LFGGroupScript::OnRemoveMember(Group* group, ObjectGuid guid, RemoveMethod method, ObjectGuid kicker, char const* reason)
 {
     if (!sLFGMgr->isOptionEnabled(LFG_OPTION_ENABLE_DUNGEON_FINDER | LFG_OPTION_ENABLE_RAID_BROWSER))
         return;
 
-    uint64 gguid = group->GetGUID();
-    TC_LOG_DEBUG("lfg", "LFGScripts::OnRemoveMember [" UI64FMTD "]: remove [" UI64FMTD "] Method: %d Kicker: [" UI64FMTD "] Reason: %s", gguid, guid, method, kicker, (reason ? reason : ""));
+    ObjectGuid gguid = group->GetGUID();
+    TC_LOG_DEBUG("lfg", "LFGScripts::OnRemoveMember [%s]: remove [%s] Method: %d Kicker: [%s] Reason: %s",
+        gguid.ToString().c_str(), guid.ToString().c_str(), method, kicker.ToString().c_str(), (reason ? reason : ""));
 
     bool isLFG = group->isLFGGroup();
 
@@ -160,13 +161,13 @@ void LFGGroupScript::OnRemoveMember(Group* group, uint64 guid, RemoveMethod meth
     if (state == LFG_STATE_PROPOSAL && method == GROUP_REMOVEMETHOD_DEFAULT)
     {
         // LfgData: Remove player from group
-        sLFGMgr->SetGroup(guid, 0);
+        sLFGMgr->SetGroup(guid, ObjectGuid::Empty);
         sLFGMgr->RemovePlayerFromGroup(gguid, guid);
         return;
     }
 
     sLFGMgr->LeaveLfg(guid);
-    sLFGMgr->SetGroup(guid, 0);
+    sLFGMgr->SetGroup(guid, ObjectGuid::Empty);
     uint8 players = sLFGMgr->RemovePlayerFromGroup(gguid, guid);
 
     if (Player* player = ObjectAccessor::FindPlayer(guid))
@@ -192,31 +193,35 @@ void LFGGroupScript::OnDisband(Group* group)
     if (!sLFGMgr->isOptionEnabled(LFG_OPTION_ENABLE_DUNGEON_FINDER | LFG_OPTION_ENABLE_RAID_BROWSER))
         return;
 
-    uint64 gguid = group->GetGUID();
-    TC_LOG_DEBUG("lfg", "LFGScripts::OnDisband [" UI64FMTD "]", gguid);
+    ObjectGuid gguid = group->GetGUID();
+    TC_LOG_DEBUG("lfg", "LFGScripts::OnDisband [%s]", gguid.ToString().c_str());
 
     sLFGMgr->RemoveGroupData(gguid);
 }
 
-void LFGGroupScript::OnChangeLeader(Group* group, uint64 newLeaderGuid, uint64 oldLeaderGuid)
+void LFGGroupScript::OnChangeLeader(Group* group, ObjectGuid newLeaderGuid, ObjectGuid oldLeaderGuid)
 {
     if (!sLFGMgr->isOptionEnabled(LFG_OPTION_ENABLE_DUNGEON_FINDER | LFG_OPTION_ENABLE_RAID_BROWSER))
         return;
 
-    uint64 gguid = group->GetGUID();
+    ObjectGuid gguid = group->GetGUID();
+
+    TC_LOG_DEBUG("lfg", "LFGScripts::OnChangeLeader [%s]: old [%s] new [%s]",
+        gguid.ToString().c_str(), newLeaderGuid.ToString().c_str(), oldLeaderGuid.ToString().c_str());
 
-    TC_LOG_DEBUG("lfg", "LFGScripts::OnChangeLeader [" UI64FMTD "]: old [" UI64FMTD "] new [" UI64FMTD "]", gguid, newLeaderGuid, oldLeaderGuid);
     sLFGMgr->SetLeader(gguid, newLeaderGuid);
 }
 
-void LFGGroupScript::OnInviteMember(Group* group, uint64 guid)
+void LFGGroupScript::OnInviteMember(Group* group, ObjectGuid guid)
 {
     if (!sLFGMgr->isOptionEnabled(LFG_OPTION_ENABLE_DUNGEON_FINDER | LFG_OPTION_ENABLE_RAID_BROWSER))
         return;
 
-    uint64 gguid = group->GetGUID();
-    uint64 leader = group->GetLeaderGUID();
-    TC_LOG_DEBUG("lfg", "LFGScripts::OnInviteMember [" UI64FMTD "]: invite [" UI64FMTD "] leader [" UI64FMTD "]", gguid, guid, leader);
+    ObjectGuid gguid = group->GetGUID();
+    ObjectGuid leader = group->GetLeaderGUID();
+    TC_LOG_DEBUG("lfg", "LFGScripts::OnInviteMember [%s]: invite [%s] leader [%s]",
+        gguid.ToString().c_str(), guid.ToString().c_str(), leader.ToString().c_str());
+
     // No gguid ==  new group being formed
     // No leader == after group creation first invite is new leader
     // leader and no gguid == first invite after leader is added to new group (this is the real invite)
diff --git a/src/server/game/DungeonFinding/LFGScripts.h b/src/server/game/DungeonFinding/LFGScripts.h
index 3f1dcbb218b..b4a626d5607 100644
--- a/src/server/game/DungeonFinding/LFGScripts.h
+++ b/src/server/game/DungeonFinding/LFGScripts.h
@@ -46,11 +46,11 @@ class LFGGroupScript : public GroupScript
         LFGGroupScript();
 
         // Group Hooks
-        void OnAddMember(Group* group, uint64 guid) override;
-        void OnRemoveMember(Group* group, uint64 guid, RemoveMethod method, uint64 kicker, char const* reason) override;
+        void OnAddMember(Group* group, ObjectGuid guid) override;
+        void OnRemoveMember(Group* group, ObjectGuid guid, RemoveMethod method, ObjectGuid kicker, char const* reason) override;
         void OnDisband(Group* group) override;
-        void OnChangeLeader(Group* group, uint64 newLeaderGuid, uint64 oldLeaderGuid) override;
-        void OnInviteMember(Group* group, uint64 guid) override;
+        void OnChangeLeader(Group* group, ObjectGuid newLeaderGuid, ObjectGuid oldLeaderGuid) override;
+        void OnInviteMember(Group* group, ObjectGuid guid) override;
 };
 
 } // namespace lfg
diff --git a/src/server/game/Entities/Corpse/Corpse.cpp b/src/server/game/Entities/Corpse/Corpse.cpp
index 9c50cec6ab8..65c679af1bf 100644
--- a/src/server/game/Entities/Corpse/Corpse.cpp
+++ b/src/server/game/Entities/Corpse/Corpse.cpp
@@ -88,7 +88,7 @@ bool Corpse::Create(uint32 guidlow, Player* owner)
     WorldObject::_Create(guidlow, HIGHGUID_CORPSE, owner->GetPhaseMask());
 
     SetObjectScale(1);
-    SetUInt64Value(CORPSE_FIELD_OWNER, owner->GetGUID());
+    SetGuidValue(CORPSE_FIELD_OWNER, owner->GetGUID());
 
     _gridCoord = Trinity::ComputeGridCoord(GetPositionX(), GetPositionY());
 
@@ -104,7 +104,7 @@ void Corpse::SaveToDB()
     uint16 index = 0;
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_INS_CORPSE);
     stmt->setUInt32(index++, GetGUIDLow());                                           // corpseGuid
-    stmt->setUInt32(index++, GUID_LOPART(GetOwnerGUID()));                            // guid
+    stmt->setUInt32(index++, GetOwnerGUID().GetCounter());                            // guid
     stmt->setFloat (index++, GetPositionX());                                         // posX
     stmt->setFloat (index++, GetPositionY());                                         // posY
     stmt->setFloat (index++, GetPositionZ());                                         // posZ
@@ -152,7 +152,7 @@ void Corpse::DeleteFromDB(SQLTransaction& trans)
     {
         // all corpses (not bones)
         stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_PLAYER_CORPSES);
-        stmt->setUInt32(0, GUID_LOPART(GetOwnerGUID()));
+        stmt->setUInt32(0, GetOwnerGUID().GetCounter());
     }
     trans->Append(stmt);
 }
@@ -177,7 +177,7 @@ bool Corpse::LoadCorpseFromDB(uint32 guid, Field* fields)
     SetUInt32Value(CORPSE_FIELD_BYTES_2, fields[8].GetUInt32());
     SetUInt32Value(CORPSE_FIELD_FLAGS, fields[9].GetUInt8());
     SetUInt32Value(CORPSE_FIELD_DYNAMIC_FLAGS, fields[10].GetUInt8());
-    SetUInt64Value(CORPSE_FIELD_OWNER, MAKE_NEW_GUID(ownerGuid, 0, HIGHGUID_PLAYER));
+    SetGuidValue(CORPSE_FIELD_OWNER, ObjectGuid(HIGHGUID_PLAYER, ownerGuid));
 
     m_time = time_t(fields[11].GetUInt32());
 
@@ -191,8 +191,8 @@ bool Corpse::LoadCorpseFromDB(uint32 guid, Field* fields)
 
     if (!IsPositionValid())
     {
-        TC_LOG_ERROR("entities.player", "Corpse (guid: %u, owner: %u) is not created, given coordinates are not valid (X: %f, Y: %f, Z: %f)",
-            GetGUIDLow(), GUID_LOPART(GetOwnerGUID()), posX, posY, posZ);
+        TC_LOG_ERROR("entities.player", "Corpse (%s, owner: %s) is not created, given coordinates are not valid (X: %f, Y: %f, Z: %f)",
+            GetGUID().ToString().c_str(), GetOwnerGUID().ToString().c_str(), posX, posY, posZ);
         return false;
     }
 
diff --git a/src/server/game/Entities/Corpse/Corpse.h b/src/server/game/Entities/Corpse/Corpse.h
index 5039c85bcb9..4b2e9321a73 100644
--- a/src/server/game/Entities/Corpse/Corpse.h
+++ b/src/server/game/Entities/Corpse/Corpse.h
@@ -64,7 +64,7 @@ class Corpse : public WorldObject, public GridObject<Corpse>
         void DeleteBonesFromWorld();
         void DeleteFromDB(SQLTransaction& trans);
 
-        uint64 GetOwnerGUID() const { return GetUInt64Value(CORPSE_FIELD_OWNER); }
+        ObjectGuid GetOwnerGUID() const { return GetGuidValue(CORPSE_FIELD_OWNER); }
 
         time_t const& GetGhostTime() const { return m_time; }
         void ResetGhostTime() { m_time = time(NULL); }
diff --git a/src/server/game/Entities/Creature/Creature.cpp b/src/server/game/Entities/Creature/Creature.cpp
index 8f4788aa79a..7a0ee24aeca 100644
--- a/src/server/game/Entities/Creature/Creature.cpp
+++ b/src/server/game/Entities/Creature/Creature.cpp
@@ -143,7 +143,7 @@ bool ForcedDespawnDelayEvent::Execute(uint64 /*e_time*/, uint32 /*p_time*/)
 
 Creature::Creature(bool isWorldObject): Unit(isWorldObject), MapObject(),
 m_groupLootTimer(0), lootingGroupLowGUID(0), m_PlayerDamageReq(0),
-m_lootRecipient(0), m_lootRecipientGroup(0), _skinner(0), _pickpocketLootRestore(0), m_corpseRemoveTime(0), m_respawnTime(0),
+m_lootRecipient(), m_lootRecipientGroup(0), _skinner(), _pickpocketLootRestore(0), m_corpseRemoveTime(0), m_respawnTime(0),
 m_respawnDelay(300), m_corpseDelay(60), m_respawnradius(0.0f), m_reactState(REACT_AGGRESSIVE),
 m_defaultMovementType(IDLE_MOTION_TYPE), m_DBTableGuid(0), m_equipmentId(0), m_originalEquipmentId(0), m_AlreadyCallAssistance(false),
 m_AlreadySearchedAssistance(false), m_regenHealth(true), m_AI_locked(false), m_meleeDamageSchoolMask(SPELL_SCHOOL_MASK_NORMAL),
@@ -471,17 +471,17 @@ void Creature::Update(uint32 diff)
                 if (!allowed)                                               // Will be rechecked on next Update call
                     break;
 
-                uint64 dbtableHighGuid = MAKE_NEW_GUID(m_DBTableGuid, GetEntry(), HIGHGUID_UNIT);
+                ObjectGuid dbtableHighGuid(HIGHGUID_UNIT, GetEntry(), m_DBTableGuid);
                 time_t linkedRespawntime = GetMap()->GetLinkedRespawnTime(dbtableHighGuid);
                 if (!linkedRespawntime)             // Can respawn
                     Respawn();
                 else                                // the master is dead
                 {
-                    uint64 targetGuid = sObjectMgr->GetLinkedRespawnGuid(dbtableHighGuid);
+                    ObjectGuid targetGuid = sObjectMgr->GetLinkedRespawnGuid(dbtableHighGuid);
                     if (targetGuid == dbtableHighGuid) // if linking self, never respawn (check delayed to next day)
                         SetRespawnTime(DAY);
                     else
-                        m_respawnTime = (now > linkedRespawntime ? now : linkedRespawntime)+urand(5, MINUTE); // else copy time from master and add a little
+                        m_respawnTime = (now > linkedRespawntime ? now : linkedRespawntime) + urand(5, MINUTE); // else copy time from master and add a little
                     SaveRespawnTime(); // also save to DB immediately
                 }
             }
@@ -532,7 +532,7 @@ void Creature::Update(uint32 diff)
                     if (Unit* charmer = ObjectAccessor::GetUnit(*this, LastCharmerGUID))
                         i_AI->AttackStart(charmer);
 
-                LastCharmerGUID = 0;
+                LastCharmerGUID.Clear();
             }
 
             if (!IsInEvadeMode() && IsAIEnabled)
@@ -893,7 +893,7 @@ void Creature::SetLootRecipient(Unit* unit)
 
     if (!unit)
     {
-        m_lootRecipient = 0;
+        m_lootRecipient.Clear();
         m_lootRecipientGroup = 0;
         RemoveFlag(UNIT_DYNAMIC_FLAGS, UNIT_DYNFLAG_LOOTABLE|UNIT_DYNFLAG_TAPPED);
         return;
@@ -1224,7 +1224,7 @@ bool Creature::LoadCreatureFromDB(uint32 guid, Map* map, bool addToMap)
     m_DBTableGuid = guid;
     if (map->GetInstanceId() == 0)
     {
-        if (map->GetCreature(MAKE_NEW_GUID(guid, data->id, HIGHGUID_UNIT)))
+        if (map->GetCreature(ObjectGuid(HIGHGUID_UNIT, data->id, guid)))
             return false;
     }
     else
@@ -1474,7 +1474,7 @@ void Creature::setDeathState(DeathState s)
         if (sWorld->getBoolConfig(CONFIG_SAVE_RESPAWN_TIME_IMMEDIATELY) || isWorldBoss())
             SaveRespawnTime();
 
-        SetTarget(0);                // remove target selection in any cases (can be set at aura remove in Unit::setDeathState)
+        SetTarget(ObjectGuid::Empty);                // remove target selection in any cases (can be set at aura remove in Unit::setDeathState)
         SetUInt32Value(UNIT_NPC_FLAGS, UNIT_NPC_FLAG_NONE);
 
         setActive(false);
@@ -1533,8 +1533,8 @@ void Creature::Respawn(bool force)
         if (m_DBTableGuid)
             GetMap()->RemoveCreatureRespawnTime(m_DBTableGuid);
 
-        TC_LOG_DEBUG("entities.unit", "Respawning creature %s (GuidLow: %u, Full GUID: " UI64FMTD " Entry: %u)",
-            GetName().c_str(), GetGUIDLow(), GetGUID(), GetEntry());
+        TC_LOG_DEBUG("entities.unit", "Respawning creature %s (%s)",
+            GetName().c_str(), GetGUID().ToString().c_str());
         m_respawnTime = 0;
         ResetPickPocketRefillTimer();
         loot.clear();
@@ -2572,10 +2572,10 @@ void Creature::SetDisplayId(uint32 modelId)
     }
 }
 
-void Creature::SetTarget(uint64 guid)
+void Creature::SetTarget(ObjectGuid guid)
 {
     if (!_focusSpell)
-        SetUInt64Value(UNIT_FIELD_TARGET, guid);
+        SetGuidValue(UNIT_FIELD_TARGET, guid);
 }
 
 void Creature::FocusTarget(Spell const* focusSpell, WorldObject const* target)
@@ -2585,7 +2585,7 @@ void Creature::FocusTarget(Spell const* focusSpell, WorldObject const* target)
         return;
 
     _focusSpell = focusSpell;
-    SetUInt64Value(UNIT_FIELD_TARGET, target->GetGUID());
+    SetGuidValue(UNIT_FIELD_TARGET, target->GetGUID());
     if (focusSpell->GetSpellInfo()->AttributesEx5 & SPELL_ATTR5_DONT_TURN_DURING_CAST)
         AddUnitState(UNIT_STATE_ROTATING);
 
@@ -2601,9 +2601,9 @@ void Creature::ReleaseFocus(Spell const* focusSpell)
 
     _focusSpell = NULL;
     if (Unit* victim = GetVictim())
-        SetUInt64Value(UNIT_FIELD_TARGET, victim->GetGUID());
+        SetGuidValue(UNIT_FIELD_TARGET, victim->GetGUID());
     else
-        SetUInt64Value(UNIT_FIELD_TARGET, 0);
+        SetGuidValue(UNIT_FIELD_TARGET, ObjectGuid::Empty);
 
     if (focusSpell->GetSpellInfo()->AttributesEx5 & SPELL_ATTR5_DONT_TURN_DURING_CAST)
         ClearUnitState(UNIT_STATE_ROTATING);
diff --git a/src/server/game/Entities/Creature/Creature.h b/src/server/game/Entities/Creature/Creature.h
index 5ead323314c..b7c86aebfdf 100644
--- a/src/server/game/Entities/Creature/Creature.h
+++ b/src/server/game/Entities/Creature/Creature.h
@@ -552,11 +552,11 @@ class Creature : public Unit, public GridObject<Creature>, public MapObject
         void StartPickPocketRefillTimer();
         void ResetPickPocketRefillTimer() { _pickpocketLootRestore = 0; }
         bool CanGeneratePickPocketLoot() const { return _pickpocketLootRestore <= time(NULL); }
-        void SetSkinner(uint64 guid) { _skinner = guid; }
-        uint64 GetSkinner() const { return _skinner; } // Returns the player who skinned this creature
+        void SetSkinner(ObjectGuid guid) { _skinner = guid; }
+        ObjectGuid GetSkinner() const { return _skinner; } // Returns the player who skinned this creature
         Player* GetLootRecipient() const;
         Group* GetLootRecipientGroup() const;
-        bool hasLootRecipient() const { return m_lootRecipient || m_lootRecipientGroup; }
+        bool hasLootRecipient() const { return !m_lootRecipient.IsEmpty() || m_lootRecipientGroup; }
         bool isTappedBy(Player const* player) const;                          // return true if the creature is tapped by the player or a member of his party.
 
         void SetLootRecipient (Unit* unit);
@@ -674,7 +674,7 @@ class Creature : public Unit, public GridObject<Creature>, public MapObject
         bool m_isTempWorldObject; //true when possessed
 
         // Handling caster facing during spellcast
-        void SetTarget(uint64 guid) override;
+        void SetTarget(ObjectGuid guid) override;
         void FocusTarget(Spell const* focusSpell, WorldObject const* target);
         void ReleaseFocus(Spell const* focusSpell);
 
@@ -687,9 +687,9 @@ class Creature : public Unit, public GridObject<Creature>, public MapObject
 
         static float _GetHealthMod(int32 Rank);
 
-        uint64 m_lootRecipient;
+        ObjectGuid m_lootRecipient;
         uint32 m_lootRecipientGroup;
-        uint64 _skinner;
+        ObjectGuid _skinner;
 
         /// Timers
         time_t _pickpocketLootRestore;
@@ -746,15 +746,15 @@ class Creature : public Unit, public GridObject<Creature>, public MapObject
 class AssistDelayEvent : public BasicEvent
 {
     public:
-        AssistDelayEvent(uint64 victim, Unit& owner) : BasicEvent(), m_victim(victim), m_owner(owner) { }
+        AssistDelayEvent(ObjectGuid victim, Unit& owner) : BasicEvent(), m_victim(victim), m_owner(owner) { }
 
         bool Execute(uint64 e_time, uint32 p_time) override;
-        void AddAssistant(uint64 guid) { m_assistants.push_back(guid); }
+        void AddAssistant(ObjectGuid guid) { m_assistants.push_back(guid); }
     private:
         AssistDelayEvent();
 
-        uint64            m_victim;
-        std::list<uint64> m_assistants;
+        ObjectGuid        m_victim;
+        GuidList          m_assistants;
         Unit&             m_owner;
 };
 
diff --git a/src/server/game/Entities/Creature/GossipDef.cpp b/src/server/game/Entities/Creature/GossipDef.cpp
index 9e72a124ae0..f1554fb27b7 100644
--- a/src/server/game/Entities/Creature/GossipDef.cpp
+++ b/src/server/game/Entities/Creature/GossipDef.cpp
@@ -28,7 +28,7 @@ GossipMenu::GossipMenu()
 {
     _menuId = 0;
     _locale = DEFAULT_LOCALE;
-    _senderGUID = 0;
+    _senderGUID.Clear();
 }
 
 GossipMenu::~GossipMenu()
@@ -188,7 +188,7 @@ void PlayerMenu::ClearMenus()
     _questMenu.ClearMenu();
 }
 
-void PlayerMenu::SendGossipMenu(uint32 titleTextId, uint64 objectGUID)
+void PlayerMenu::SendGossipMenu(uint32 titleTextId, ObjectGuid objectGUID)
 {
     _gossipMenu.SetSenderGUID(objectGUID);
 
@@ -248,7 +248,7 @@ void PlayerMenu::SendGossipMenu(uint32 titleTextId, uint64 objectGUID)
 
 void PlayerMenu::SendCloseGossip()
 {
-    _gossipMenu.SetSenderGUID(0);
+    _gossipMenu.SetSenderGUID(ObjectGuid::Empty);
 
     WorldPacket data(SMSG_GOSSIP_COMPLETE, 0);
     _session->SendPacket(&data);
@@ -323,7 +323,7 @@ void QuestMenu::ClearMenu()
     _questMenuItems.clear();
 }
 
-void PlayerMenu::SendQuestGiverQuestList(QEmote const& eEmote, const std::string& Title, uint64 npcGUID)
+void PlayerMenu::SendQuestGiverQuestList(QEmote const& eEmote, const std::string& Title, ObjectGuid npcGUID)
 {
     WorldPacket data(SMSG_QUESTGIVER_QUEST_LIST, 100);    // guess size
     data << uint64(npcGUID);
@@ -368,20 +368,20 @@ void PlayerMenu::SendQuestGiverQuestList(QEmote const& eEmote, const std::string
 
     data.put<uint8>(count_pos, count);
     _session->SendPacket(&data);
-    TC_LOG_DEBUG("network", "WORLD: Sent SMSG_QUESTGIVER_QUEST_LIST NPC Guid=%u", GUID_LOPART(npcGUID));
+    TC_LOG_DEBUG("network", "WORLD: Sent SMSG_QUESTGIVER_QUEST_LIST NPC=%s", npcGUID.ToString().c_str());
 }
 
-void PlayerMenu::SendQuestGiverStatus(uint32 questStatus, uint64 npcGUID) const
+void PlayerMenu::SendQuestGiverStatus(uint32 questStatus, ObjectGuid npcGUID) const
 {
     WorldPacket data(SMSG_QUESTGIVER_STATUS, 8 + 4);
     data << uint64(npcGUID);
     data << uint32(questStatus);
 
     _session->SendPacket(&data);
-    TC_LOG_DEBUG("network", "WORLD: Sent SMSG_QUESTGIVER_STATUS NPC Guid=%u, status=%u", GUID_LOPART(npcGUID), questStatus);
+    TC_LOG_DEBUG("network", "WORLD: Sent SMSG_QUESTGIVER_STATUS NPC=%s, status=%u", npcGUID.ToString().c_str(), questStatus);
 }
 
-void PlayerMenu::SendQuestGiverQuestDetails(Quest const* quest, uint64 npcGUID, bool activateAccept) const
+void PlayerMenu::SendQuestGiverQuestDetails(Quest const* quest, ObjectGuid npcGUID, bool activateAccept) const
 {
     std::string questTitle           = quest->GetTitle();
     std::string questDetails         = quest->GetDetails();
@@ -441,7 +441,7 @@ void PlayerMenu::SendQuestGiverQuestDetails(Quest const* quest, uint64 npcGUID,
     }
     _session->SendPacket(&data);
 
-    TC_LOG_DEBUG("network", "WORLD: Sent SMSG_QUESTGIVER_QUEST_DETAILS NPCGuid=%u, questid=%u", GUID_LOPART(npcGUID), quest->GetQuestId());
+    TC_LOG_DEBUG("network", "WORLD: Sent SMSG_QUESTGIVER_QUEST_DETAILS NPC=%s, questid=%u", npcGUID.ToString().c_str(), quest->GetQuestId());
 }
 
 void PlayerMenu::SendQuestQueryResponse(Quest const* quest) const
@@ -615,7 +615,7 @@ void PlayerMenu::SendQuestQueryResponse(Quest const* quest) const
     TC_LOG_DEBUG("network", "WORLD: Sent SMSG_QUEST_QUERY_RESPONSE questid=%u", quest->GetQuestId());
 }
 
-void PlayerMenu::SendQuestGiverOfferReward(Quest const* quest, uint64 npcGUID, bool enableNext) const
+void PlayerMenu::SendQuestGiverOfferReward(Quest const* quest, ObjectGuid npcGUID, bool enableNext) const
 {
     std::string questTitle = quest->GetTitle();
     std::string questOfferRewardText = quest->GetOfferRewardText();
@@ -676,10 +676,10 @@ void PlayerMenu::SendQuestGiverOfferReward(Quest const* quest, uint64 npcGUID, b
     quest->BuildExtraQuestInfo(data, _session->GetPlayer());
 
     _session->SendPacket(&data);
-    TC_LOG_DEBUG("network", "WORLD: Sent SMSG_QUESTGIVER_OFFER_REWARD NPCGuid=%u, questid=%u", GUID_LOPART(npcGUID), quest->GetQuestId());
+    TC_LOG_DEBUG("network", "WORLD: Sent SMSG_QUESTGIVER_OFFER_REWARD NPC=%s, questid=%u", npcGUID.ToString().c_str(), quest->GetQuestId());
 }
 
-void PlayerMenu::SendQuestGiverRequestItems(Quest const* quest, uint64 npcGUID, bool canComplete, bool closeOnCancel) const
+void PlayerMenu::SendQuestGiverRequestItems(Quest const* quest, ObjectGuid npcGUID, bool canComplete, bool closeOnCancel) const
 {
     // We can always call to RequestItems, but this packet only goes out if there are actually
     // items.  Otherwise, we'll skip straight to the OfferReward
@@ -764,7 +764,7 @@ void PlayerMenu::SendQuestGiverRequestItems(Quest const* quest, uint64 npcGUID,
     data << uint32(0x40);
 
     _session->SendPacket(&data);
-    TC_LOG_DEBUG("network", "WORLD: Sent SMSG_QUESTGIVER_REQUEST_ITEMS NPCGuid=%u, questid=%u", GUID_LOPART(npcGUID), quest->GetQuestId());
+    TC_LOG_DEBUG("network", "WORLD: Sent SMSG_QUESTGIVER_REQUEST_ITEMS NPC=%s, questid=%u", npcGUID.ToString().c_str(), quest->GetQuestId());
 }
 
 void PlayerMenu::AddQuestLevelToTitle(std::string &title, int32 level)
diff --git a/src/server/game/Entities/Creature/GossipDef.h b/src/server/game/Entities/Creature/GossipDef.h
index 6d42d7c33f7..a2b29b8c29b 100644
--- a/src/server/game/Entities/Creature/GossipDef.h
+++ b/src/server/game/Entities/Creature/GossipDef.h
@@ -20,6 +20,7 @@
 #define TRINITYCORE_GOSSIP_H
 
 #include "Common.h"
+#include "ObjectGuid.h"
 #include "QuestDef.h"
 #include "NPCHandler.h"
 
@@ -167,8 +168,8 @@ class GossipMenu
 
         void SetMenuId(uint32 menu_id) { _menuId = menu_id; }
         uint32 GetMenuId() const { return _menuId; }
-        void SetSenderGUID(uint64 guid) { _senderGUID = guid; }
-        uint64 GetSenderGUID() const { return _senderGUID; }
+        void SetSenderGUID(ObjectGuid guid) { _senderGUID = guid; }
+        ObjectGuid GetSenderGUID() const { return _senderGUID; }
         void SetLocale(LocaleConstant locale) { _locale = locale; }
         LocaleConstant GetLocale() const { return _locale; }
 
@@ -217,7 +218,7 @@ class GossipMenu
         GossipMenuItemContainer _menuItems;
         GossipMenuItemDataContainer _menuItemData;
         uint32 _menuId;
-        uint64 _senderGUID;
+        ObjectGuid _senderGUID;
         LocaleConstant _locale;
 };
 
@@ -267,22 +268,22 @@ class PlayerMenu
         uint32 GetGossipOptionAction(uint32 selection) const { return _gossipMenu.GetMenuItemAction(selection); }
         bool IsGossipOptionCoded(uint32 selection) const { return _gossipMenu.IsMenuItemCoded(selection); }
 
-        void SendGossipMenu(uint32 titleTextId, uint64 objectGUID);
+        void SendGossipMenu(uint32 titleTextId, ObjectGuid objectGUID);
         void SendCloseGossip();
         void SendPointOfInterest(uint32 poiId) const;
 
         /*********************************************************/
         /***                    QUEST SYSTEM                   ***/
         /*********************************************************/
-        void SendQuestGiverStatus(uint32 questStatus, uint64 npcGUID) const;
+        void SendQuestGiverStatus(uint32 questStatus, ObjectGuid npcGUID) const;
 
-        void SendQuestGiverQuestList(QEmote const& eEmote, const std::string& Title, uint64 npcGUID);
+        void SendQuestGiverQuestList(QEmote const& eEmote, const std::string& Title, ObjectGuid npcGUID);
 
         void SendQuestQueryResponse(Quest const* quest) const;
-        void SendQuestGiverQuestDetails(Quest const* quest, uint64 npcGUID, bool activateAccept) const;
+        void SendQuestGiverQuestDetails(Quest const* quest, ObjectGuid npcGUID, bool activateAccept) const;
 
-        void SendQuestGiverOfferReward(Quest const* quest, uint64 npcGUID, bool enableNext) const;
-        void SendQuestGiverRequestItems(Quest const* quest, uint64 npcGUID, bool canComplete, bool closeOnCancel) const;
+        void SendQuestGiverOfferReward(Quest const* quest, ObjectGuid npcGUID, bool enableNext) const;
+        void SendQuestGiverRequestItems(Quest const* quest, ObjectGuid npcGUID, bool canComplete, bool closeOnCancel) const;
 
         static void AddQuestLevelToTitle(std::string &title, int32 level);
 
diff --git a/src/server/game/Entities/Creature/TemporarySummon.cpp b/src/server/game/Entities/Creature/TemporarySummon.cpp
index b982de1289d..997b956d6a7 100644
--- a/src/server/game/Entities/Creature/TemporarySummon.cpp
+++ b/src/server/game/Entities/Creature/TemporarySummon.cpp
@@ -28,7 +28,9 @@ TempSummon::TempSummon(SummonPropertiesEntry const* properties, Unit* owner, boo
 Creature(isWorldObject), m_Properties(properties), m_type(TEMPSUMMON_MANUAL_DESPAWN),
 m_timer(0), m_lifetime(0)
 {
-    m_summonerGUID = owner ? owner->GetGUID() : 0;
+    if (owner)
+        m_summonerGUID = owner->GetGUID();
+
     m_unitTypeMask |= UNIT_MASK_SUMMON;
 }
 
@@ -274,7 +276,7 @@ void TempSummon::RemoveFromWorld()
         if (slot > 0)
             if (Unit* owner = GetSummoner())
                 if (owner->m_SummonSlot[slot] == GetGUID())
-                    owner->m_SummonSlot[slot] = 0;
+                    owner->m_SummonSlot[slot].Clear();
     }
 
     //if (GetOwnerGUID())
diff --git a/src/server/game/Entities/Creature/TemporarySummon.h b/src/server/game/Entities/Creature/TemporarySummon.h
index 58cc6eb7d0b..4780749899e 100644
--- a/src/server/game/Entities/Creature/TemporarySummon.h
+++ b/src/server/game/Entities/Creature/TemporarySummon.h
@@ -51,7 +51,7 @@ class TempSummon : public Creature
         void SaveToDB(uint32 /*mapid*/, uint8 /*spawnMask*/, uint32 /*phaseMask*/) override { }
         Unit* GetSummoner() const;
         Creature* GetSummonerCreatureBase() const;
-        uint64 GetSummonerGUID() const { return m_summonerGUID; }
+        ObjectGuid GetSummonerGUID() const { return m_summonerGUID; }
         TempSummonType const& GetSummonType() { return m_type; }
         uint32 GetTimer() { return m_timer; }
 
@@ -60,7 +60,7 @@ class TempSummon : public Creature
         TempSummonType m_type;
         uint32 m_timer;
         uint32 m_lifetime;
-        uint64 m_summonerGUID;
+        ObjectGuid m_summonerGUID;
 };
 
 class Minion : public TempSummon
diff --git a/src/server/game/Entities/DynamicObject/DynamicObject.cpp b/src/server/game/Entities/DynamicObject/DynamicObject.cpp
index 00d555c5e9c..2a76bee793e 100644
--- a/src/server/game/Entities/DynamicObject/DynamicObject.cpp
+++ b/src/server/game/Entities/DynamicObject/DynamicObject.cpp
@@ -94,7 +94,7 @@ bool DynamicObject::CreateDynamicObject(uint32 guidlow, Unit* caster, SpellInfo
 
     SetEntry(spell->Id);
     SetObjectScale(1);
-    SetUInt64Value(DYNAMICOBJECT_CASTER, caster->GetGUID());
+    SetGuidValue(DYNAMICOBJECT_CASTER, caster->GetGUID());
     SetUInt32Value(DYNAMICOBJECT_BYTES, spell->SpellVisual[0] | (type << 28));
     SetUInt32Value(DYNAMICOBJECT_SPELLID, spell->Id);
     SetFloatValue(DYNAMICOBJECT_RADIUS, radius);
diff --git a/src/server/game/Entities/DynamicObject/DynamicObject.h b/src/server/game/Entities/DynamicObject/DynamicObject.h
index c185c669e7b..89d72bfe5a9 100644
--- a/src/server/game/Entities/DynamicObject/DynamicObject.h
+++ b/src/server/game/Entities/DynamicObject/DynamicObject.h
@@ -55,7 +55,7 @@ class DynamicObject : public WorldObject, public GridObject<DynamicObject>, publ
         void BindToCaster();
         void UnbindFromCaster();
         uint32 GetSpellId() const {  return GetUInt32Value(DYNAMICOBJECT_SPELLID); }
-        uint64 GetCasterGUID() const { return GetUInt64Value(DYNAMICOBJECT_CASTER); }
+        ObjectGuid GetCasterGUID() const { return GetGuidValue(DYNAMICOBJECT_CASTER); }
         float GetRadius() const { return GetFloatValue(DYNAMICOBJECT_RADIUS); }
 
     protected:
diff --git a/src/server/game/Entities/GameObject/GameObject.cpp b/src/server/game/Entities/GameObject/GameObject.cpp
index db69e1a5046..d134740d1cd 100644
--- a/src/server/game/Entities/GameObject/GameObject.cpp
+++ b/src/server/game/Entities/GameObject/GameObject.cpp
@@ -47,19 +47,16 @@ GameObject::GameObject() : WorldObject(false), MapObject(),
     m_respawnTime = 0;
     m_respawnDelayTime = 300;
     m_lootState = GO_NOT_READY;
-    m_lootStateUnitGUID = 0;
     m_spawnedByDefault = true;
     m_usetimes = 0;
     m_spellId = 0;
     m_cooldownTime = 0;
     m_goInfo = NULL;
-    m_ritualOwnerGUID = 0;
     m_goData = NULL;
 
     m_DBTableGuid = 0;
     m_rotation = 0;
 
-    m_lootRecipient = 0;
     m_lootRecipientGroup = 0;
     m_groupLootTimer = 0;
     lootingGroupLowGUID = 0;
@@ -78,8 +75,7 @@ GameObject::~GameObject()
 
 bool GameObject::AIM_Initialize()
 {
-    if (m_AI)
-        delete m_AI;
+    delete m_AI;
 
     m_AI = FactorySelector::SelectGameObjectAI(this);
 
@@ -108,7 +104,7 @@ void GameObject::CleanupsBeforeDelete(bool finalCleanup)
 
 void GameObject::RemoveFromOwner()
 {
-    uint64 ownerGUID = GetOwnerGUID();
+    ObjectGuid ownerGUID = GetOwnerGUID();
     if (!ownerGUID)
         return;
 
@@ -119,15 +115,9 @@ void GameObject::RemoveFromOwner()
         return;
     }
 
-    const char * ownerType = "creature";
-    if (IS_PLAYER_GUID(ownerGUID))
-        ownerType = "player";
-    else if (IS_PET_GUID(ownerGUID))
-        ownerType = "pet";
-
-    TC_LOG_FATAL("misc", "Removed GameObject (GUID: %u Entry: %u SpellId: %u LinkedGO: %u) that just lost any reference to the owner (GUID: %u Type: '%s') GO list",
-        GetGUIDLow(), GetGOInfo()->entry, m_spellId, GetGOInfo()->GetLinkedGameObjectEntry(), GUID_LOPART(ownerGUID), ownerType);
-    SetOwnerGUID(0);
+    TC_LOG_FATAL("misc", "Removed GameObject (GUID: %u Entry: %u SpellId: %u LinkedGO: %u) that just lost any reference to the owner (%s) GO list",
+        GetGUIDLow(), GetGOInfo()->entry, m_spellId, GetGOInfo()->GetLinkedGameObjectEntry(), ownerGUID.ToString().c_str());
+    SetOwnerGUID(ObjectGuid::Empty);
 }
 
 void GameObject::AddToWorld()
@@ -384,11 +374,11 @@ void GameObject::Update(uint32 diff)
                 time_t now = time(NULL);
                 if (m_respawnTime <= now)            // timer expired
                 {
-                    uint64 dbtableHighGuid = MAKE_NEW_GUID(m_DBTableGuid, GetEntry(), HIGHGUID_GAMEOBJECT);
+                    ObjectGuid dbtableHighGuid(HIGHGUID_GAMEOBJECT, GetEntry(), m_DBTableGuid);
                     time_t linkedRespawntime = GetMap()->GetLinkedRespawnTime(dbtableHighGuid);
                     if (linkedRespawntime)             // Can't respawn, the master is dead
                     {
-                        uint64 targetGuid = sObjectMgr->GetLinkedRespawnGuid(dbtableHighGuid);
+                        ObjectGuid targetGuid = sObjectMgr->GetLinkedRespawnGuid(dbtableHighGuid);
                         if (targetGuid == dbtableHighGuid) // if linking self, never respawn (check delayed to next day)
                             SetRespawnTime(DAY);
                         else
@@ -593,7 +583,7 @@ void GameObject::Update(uint32 diff)
 
                 if (spellId)
                 {
-                    for (std::set<uint64>::const_iterator it = m_unique_users.begin(); it != m_unique_users.end(); ++it)
+                    for (GuidSet::const_iterator it = m_unique_users.begin(); it != m_unique_users.end(); ++it)
                         // m_unique_users can contain only player GUIDs
                         if (Player* owner = ObjectAccessor::GetPlayer(*this, *it))
                             owner->CastSpell(owner, spellId, false);
@@ -990,14 +980,15 @@ bool GameObject::IsAlwaysVisibleFor(WorldObject const* seer) const
         return false;
 
     // Always seen by owner and friendly units
-    if (uint64 guid = GetOwnerGUID())
+    if (ObjectGuid guid = GetOwnerGUID())
     {
         if (seer->GetGUID() == guid)
             return true;
 
         Unit* owner = GetOwner();
-        if (owner && seer->isType(TYPEMASK_UNIT) && owner->IsFriendlyTo(((Unit*)seer)))
-            return true;
+        if (Unit const* unitSeer = seer->ToUnit())
+            if (owner && owner->IsFriendlyTo(unitSeer))
+                return true;
     }
 
     return false;
@@ -1248,9 +1239,9 @@ void GameObject::Use(Unit* user)
             {
                 if (info->chair.slots > 0)     // sometimes chairs in DB have error in fields and we dont know number of slots
                     for (uint32 i = 0; i < info->chair.slots; ++i)
-                        ChairListSlots[i] = 0; // Last user of current slot set to 0 (none sit here yet)
+                        ChairListSlots[i].Clear(); // Last user of current slot set to 0 (none sit here yet)
                 else
-                    ChairListSlots[0] = 0;     // error in DB, make one default slot
+                    ChairListSlots[0].Clear();     // error in DB, make one default slot
             }
 
             Player* player = user->ToPlayer();
@@ -1283,10 +1274,10 @@ void GameObject::Use(Unit* user)
                         if (ChairUser->IsSitState() && ChairUser->getStandState() != UNIT_STAND_STATE_SIT && ChairUser->GetExactDist2d(x_i, y_i) < 0.1f)
                             continue;        // This seat is already occupied by ChairUser. NOTE: Not sure if the ChairUser->getStandState() != UNIT_STAND_STATE_SIT check is required.
                         else
-                            itr->second = 0; // This seat is unoccupied.
+                            itr->second.Clear(); // This seat is unoccupied.
                     }
                     else
-                        itr->second = 0;     // The seat may of had an occupant, but they're offline.
+                        itr->second.Clear();     // The seat may of had an occupant, but they're offline.
                 }
 
                 found_free_slot = true;
@@ -1566,7 +1557,7 @@ void GameObject::Use(Unit* user)
                 else
                 {
                     // reset ritual for this GO
-                    m_ritualOwnerGUID = 0;
+                    m_ritualOwnerGUID.Clear();
                     m_unique_users.clear();
                     m_usetimes = 0;
                 }
@@ -1807,7 +1798,7 @@ void GameObject::CastSpell(Unit* target, uint32 spellId, bool triggered /*= true
         trigger->setFaction(14);
         // Set owner guid for target if no owner available - needed by trigger auras
         // - trigger gets despawned and there's no caster avalible (see AuraEffect::TriggerSpell())
-        trigger->CastSpell(target ? target : trigger, spellInfo, triggered, nullptr, nullptr, target ? target->GetGUID() : 0);
+        trigger->CastSpell(target ? target : trigger, spellInfo, triggered, nullptr, nullptr, target ? target->GetGUID() : ObjectGuid::Empty);
     }
 }
 
@@ -1930,9 +1921,9 @@ void GameObject::ModifyHealth(int32 change, Unit* attackerOrHealer /*= NULL*/, u
     if (player)
     {
         WorldPacket data(SMSG_DESTRUCTIBLE_BUILDING_DAMAGE, 8 + 8 + 8 + 4 + 4);
-        data.appendPackGUID(GetGUID());
-        data.appendPackGUID(attackerOrHealer->GetGUID());
-        data.appendPackGUID(player->GetGUID());
+        data << GetPackGUID();
+        data << attackerOrHealer->GetPackGUID();
+        data << player->GetPackGUID();
         data << uint32(-change);                    // change  < 0 triggers SPELL_BUILDING_HEAL combat log event
                                                     // change >= 0 triggers SPELL_BUILDING_DAMAGE event
         data << uint32(spellId);
@@ -2048,7 +2039,11 @@ void GameObject::SetDestructibleState(GameObjectDestructibleState state, Player*
 void GameObject::SetLootState(LootState state, Unit* unit)
 {
     m_lootState = state;
-    m_lootStateUnitGUID = unit ? unit->GetGUID() : 0;
+    if (unit)
+        m_lootStateUnitGUID = unit->GetGUID();
+    else
+        m_lootStateUnitGUID.Clear();
+
     AI()->OnStateChanged(state, unit);
     sScriptMgr->OnGameObjectLootStateChanged(this, state, unit);
 
@@ -2143,7 +2138,7 @@ void GameObject::SetLootRecipient(Unit* unit)
 
     if (!unit)
     {
-        m_lootRecipient = 0;
+        m_lootRecipient.Clear();
         m_lootRecipientGroup = 0;
         return;
     }
diff --git a/src/server/game/Entities/GameObject/GameObject.h b/src/server/game/Entities/GameObject/GameObject.h
index 89157d07f7c..4d945b54e6b 100644
--- a/src/server/game/Entities/GameObject/GameObject.h
+++ b/src/server/game/Entities/GameObject/GameObject.h
@@ -667,7 +667,7 @@ class GameObject : public WorldObject, public GridObject<GameObject>, public Map
         bool LoadGameObjectFromDB(uint32 guid, Map* map, bool addToMap = true);
         void DeleteFromDB();
 
-        void SetOwnerGUID(uint64 owner)
+        void SetOwnerGUID(ObjectGuid owner)
         {
             // Owner already found and different than expected owner - remove object from old owner
             if (owner && GetOwnerGUID() && GetOwnerGUID() != owner)
@@ -675,9 +675,9 @@ class GameObject : public WorldObject, public GridObject<GameObject>, public Map
                 ASSERT(false);
             }
             m_spawnedByDefault = false;                     // all object with owner is despawned after delay
-            SetUInt64Value(OBJECT_FIELD_CREATED_BY, owner);
+            SetGuidValue(OBJECT_FIELD_CREATED_BY, owner);
         }
-        uint64 GetOwnerGUID() const { return GetUInt64Value(OBJECT_FIELD_CREATED_BY); }
+        ObjectGuid GetOwnerGUID() const { return GetGuidValue(OBJECT_FIELD_CREATED_BY); }
         Unit* GetOwner() const;
 
         void SetSpellId(uint32 id)
@@ -767,7 +767,7 @@ class GameObject : public WorldObject, public GridObject<GameObject>, public Map
         Group* GetLootRecipientGroup() const;
         void SetLootRecipient(Unit* unit);
         bool IsLootAllowedFor(Player const* player) const;
-        bool HasLootRecipient() const { return m_lootRecipient || m_lootRecipientGroup; }
+        bool HasLootRecipient() const { return !m_lootRecipient.IsEmpty() || m_lootRecipientGroup; }
         uint32 m_groupLootTimer;                            // (msecs)timer used for group loot
         uint32 lootingGroupLowGUID;                         // used to find group which is looting
 
@@ -846,17 +846,17 @@ class GameObject : public WorldObject, public GridObject<GameObject>, public Map
         time_t      m_respawnTime;                          // (secs) time of next respawn (or despawn if GO have owner()),
         uint32      m_respawnDelayTime;                     // (secs) if 0 then current GO state no dependent from timer
         LootState   m_lootState;
-        uint64      m_lootStateUnitGUID;                    // GUID of the unit passed with SetLootState(LootState, Unit*)
+        ObjectGuid  m_lootStateUnitGUID;                    // GUID of the unit passed with SetLootState(LootState, Unit*)
         bool        m_spawnedByDefault;
         time_t      m_cooldownTime;                         // used as internal reaction delay time store (not state change reaction).
                                                             // For traps this: spell casting cooldown, for doors/buttons: reset time.
         std::list<uint32> m_SkillupList;
 
-        uint64 m_ritualOwnerGUID;                           // used for GAMEOBJECT_TYPE_SUMMONING_RITUAL where GO is not summoned (no owner)
-        std::set<uint64> m_unique_users;
+        ObjectGuid m_ritualOwnerGUID;                       // used for GAMEOBJECT_TYPE_SUMMONING_RITUAL where GO is not summoned (no owner)
+        GuidSet m_unique_users;
         uint32 m_usetimes;
 
-        typedef std::map<uint32, uint64> ChairSlotAndUser;
+        typedef std::map<uint32, ObjectGuid> ChairSlotAndUser;
         ChairSlotAndUser ChairListSlots;
 
         uint32 m_DBTableGuid;                               ///< For new or temporary gameobjects is 0 for saved it is lowguid
@@ -867,7 +867,7 @@ class GameObject : public WorldObject, public GridObject<GameObject>, public Map
         uint64 m_rotation;
         Position m_stationaryPosition;
 
-        uint64 m_lootRecipient;
+        ObjectGuid m_lootRecipient;
         uint32 m_lootRecipientGroup;
         uint16 m_LootMode;                                  // bitmask, default LOOT_MODE_DEFAULT, determines what loot will be lootable
     private:
diff --git a/src/server/game/Entities/Item/Container/Bag.cpp b/src/server/game/Entities/Item/Container/Bag.cpp
index 39f2c59fc29..3595f6fd9f6 100644
--- a/src/server/game/Entities/Item/Container/Bag.cpp
+++ b/src/server/game/Entities/Item/Container/Bag.cpp
@@ -81,8 +81,11 @@ bool Bag::Create(uint32 guidlow, uint32 itemid, Player const* owner)
     SetEntry(itemid);
     SetObjectScale(1.0f);
 
-    SetUInt64Value(ITEM_FIELD_OWNER, owner ? owner->GetGUID() : 0);
-    SetUInt64Value(ITEM_FIELD_CONTAINED, owner ? owner->GetGUID() : 0);
+    if (owner)
+    {
+        SetGuidValue(ITEM_FIELD_OWNER, owner->GetGUID());
+        SetGuidValue(ITEM_FIELD_CONTAINED, owner->GetGUID());
+    }
 
     SetUInt32Value(ITEM_FIELD_MAXDURABILITY, itemProto->MaxDurability);
     SetUInt32Value(ITEM_FIELD_DURABILITY, itemProto->MaxDurability);
@@ -94,7 +97,7 @@ bool Bag::Create(uint32 guidlow, uint32 itemid, Player const* owner)
     // Cleaning 20 slots
     for (uint8 i = 0; i < MAX_BAG_SIZE; ++i)
     {
-        SetUInt64Value(CONTAINER_FIELD_SLOT_1 + (i*2), 0);
+        SetGuidValue(CONTAINER_FIELD_SLOT_1 + (i*2), ObjectGuid::Empty);
         m_bagslot[i] = NULL;
     }
 
@@ -106,7 +109,7 @@ void Bag::SaveToDB(SQLTransaction& trans)
     Item::SaveToDB(trans);
 }
 
-bool Bag::LoadFromDB(uint32 guid, uint64 owner_guid, Field* fields, uint32 entry)
+bool Bag::LoadFromDB(uint32 guid, ObjectGuid owner_guid, Field* fields, uint32 entry)
 {
     if (!Item::LoadFromDB(guid, owner_guid, fields, entry))
         return false;
@@ -116,7 +119,7 @@ bool Bag::LoadFromDB(uint32 guid, uint64 owner_guid, Field* fields, uint32 entry
     // cleanup bag content related item value fields (its will be filled correctly from `character_inventory`)
     for (uint8 i = 0; i < MAX_BAG_SIZE; ++i)
     {
-        SetUInt64Value(CONTAINER_FIELD_SLOT_1 + (i*2), 0);
+        SetGuidValue(CONTAINER_FIELD_SLOT_1 + (i * 2), ObjectGuid::Empty);
         delete m_bagslot[i];
         m_bagslot[i] = NULL;
     }
@@ -151,7 +154,7 @@ void Bag::RemoveItem(uint8 slot, bool /*update*/)
         m_bagslot[slot]->SetContainer(NULL);
 
     m_bagslot[slot] = NULL;
-    SetUInt64Value(CONTAINER_FIELD_SLOT_1 + (slot * 2), 0);
+    SetGuidValue(CONTAINER_FIELD_SLOT_1 + (slot * 2), ObjectGuid::Empty);
 }
 
 void Bag::StoreItem(uint8 slot, Item* pItem, bool /*update*/)
@@ -161,9 +164,9 @@ void Bag::StoreItem(uint8 slot, Item* pItem, bool /*update*/)
     if (pItem && pItem->GetGUID() != this->GetGUID())
     {
         m_bagslot[slot] = pItem;
-        SetUInt64Value(CONTAINER_FIELD_SLOT_1 + (slot * 2), pItem->GetGUID());
-        pItem->SetUInt64Value(ITEM_FIELD_CONTAINED, GetGUID());
-        pItem->SetUInt64Value(ITEM_FIELD_OWNER, GetOwnerGUID());
+        SetGuidValue(CONTAINER_FIELD_SLOT_1 + (slot * 2), pItem->GetGUID());
+        pItem->SetGuidValue(ITEM_FIELD_CONTAINED, GetGUID());
+        pItem->SetGuidValue(ITEM_FIELD_OWNER, GetOwnerGUID());
         pItem->SetContainer(this);
         pItem->SetSlot(slot);
     }
@@ -225,7 +228,7 @@ uint32 Bag::GetItemCountWithLimitCategory(uint32 limitCategory, Item* skipItem)
     return count;
 }
 
-uint8 Bag::GetSlotByItemGUID(uint64 guid) const
+uint8 Bag::GetSlotByItemGUID(ObjectGuid guid) const
 {
     for (uint32 i = 0; i < GetBagSize(); ++i)
         if (m_bagslot[i] != 0)
diff --git a/src/server/game/Entities/Item/Container/Bag.h b/src/server/game/Entities/Item/Container/Bag.h
index db0c8edf556..65807628067 100644
--- a/src/server/game/Entities/Item/Container/Bag.h
+++ b/src/server/game/Entities/Item/Container/Bag.h
@@ -45,7 +45,7 @@ class Bag : public Item
         uint32 GetItemCount(uint32 item, Item* eItem = NULL) const;
         uint32 GetItemCountWithLimitCategory(uint32 limitCategory, Item* skipItem = NULL) const;
 
-        uint8 GetSlotByItemGUID(uint64 guid) const;
+        uint8 GetSlotByItemGUID(ObjectGuid guid) const;
         bool IsEmpty() const;
         uint32 GetFreeSlots() const;
         uint32 GetBagSize() const { return GetUInt32Value(CONTAINER_FIELD_NUM_SLOTS); }
@@ -54,7 +54,7 @@ class Bag : public Item
         // overwrite virtual Item::SaveToDB
         void SaveToDB(SQLTransaction& trans) override;
         // overwrite virtual Item::LoadFromDB
-        bool LoadFromDB(uint32 guid, uint64 owner_guid, Field* fields, uint32 entry) override;
+        bool LoadFromDB(uint32 guid, ObjectGuid owner_guid, Field* fields, uint32 entry) override;
         // overwrite virtual Item::DeleteFromDB
         void DeleteFromDB(SQLTransaction& trans) override;
 
diff --git a/src/server/game/Entities/Item/Item.cpp b/src/server/game/Entities/Item/Item.cpp
index 581678824b2..db257835f23 100644
--- a/src/server/game/Entities/Item/Item.cpp
+++ b/src/server/game/Entities/Item/Item.cpp
@@ -267,8 +267,11 @@ bool Item::Create(uint32 guidlow, uint32 itemid, Player const* owner)
     SetEntry(itemid);
     SetObjectScale(1.0f);
 
-    SetUInt64Value(ITEM_FIELD_OWNER, owner ? owner->GetGUID() : 0);
-    SetUInt64Value(ITEM_FIELD_CONTAINED, owner ? owner->GetGUID() : 0);
+    if (owner)
+    {
+        SetGuidValue(ITEM_FIELD_OWNER, owner->GetGUID());
+        SetGuidValue(ITEM_FIELD_CONTAINED, owner->GetGUID());
+    }
 
     ItemTemplate const* itemProto = sObjectMgr->GetItemTemplate(itemid);
     if (!itemProto)
@@ -328,9 +331,9 @@ void Item::SaveToDB(SQLTransaction& trans)
             uint8 index = 0;
             PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(uState == ITEM_NEW ? CHAR_REP_ITEM_INSTANCE : CHAR_UPD_ITEM_INSTANCE);
             stmt->setUInt32(  index, GetEntry());
-            stmt->setUInt32(++index, GUID_LOPART(GetOwnerGUID()));
-            stmt->setUInt32(++index, GUID_LOPART(GetUInt64Value(ITEM_FIELD_CREATOR)));
-            stmt->setUInt32(++index, GUID_LOPART(GetUInt64Value(ITEM_FIELD_GIFTCREATOR)));
+            stmt->setUInt32(++index, GetOwnerGUID().GetCounter());
+            stmt->setUInt32(++index, GetGuidValue(ITEM_FIELD_CREATOR).GetCounter());
+            stmt->setUInt32(++index, GetGuidValue(ITEM_FIELD_GIFTCREATOR).GetCounter());
             stmt->setUInt32(++index, GetCount());
             stmt->setUInt32(++index, GetUInt32Value(ITEM_FIELD_DURATION));
 
@@ -361,7 +364,7 @@ void Item::SaveToDB(SQLTransaction& trans)
             if ((uState == ITEM_CHANGED) && HasFlag(ITEM_FIELD_FLAGS, ITEM_FLAG_WRAPPED))
             {
                 stmt = CharacterDatabase.GetPreparedStatement(CHAR_UPD_GIFT_OWNER);
-                stmt->setUInt32(0, GUID_LOPART(GetOwnerGUID()));
+                stmt->setUInt32(0, GetOwnerGUID().GetCounter());
                 stmt->setUInt32(1, guid);
                 trans->Append(stmt);
             }
@@ -400,7 +403,7 @@ void Item::SaveToDB(SQLTransaction& trans)
         CharacterDatabase.CommitTransaction(trans);
 }
 
-bool Item::LoadFromDB(uint32 guid, uint64 owner_guid, Field* fields, uint32 entry)
+bool Item::LoadFromDB(uint32 guid, ObjectGuid owner_guid, Field* fields, uint32 entry)
 {
     //                                                    0                1      2         3        4      5             6                 7           8           9    10
     //result = CharacterDatabase.PQuery("SELECT creatorGuid, giftCreatorGuid, count, duration, charges, flags, enchantments, randomPropertyId, durability, playedTime, text FROM item_instance WHERE guid = '%u'", guid);
@@ -418,12 +421,12 @@ bool Item::LoadFromDB(uint32 guid, uint64 owner_guid, Field* fields, uint32 entr
         return false;
 
     // set owner (not if item is only loaded for gbank/auction/mail
-    if (owner_guid != 0)
+    if (owner_guid)
         SetOwnerGUID(owner_guid);
 
     bool need_save = false;                                 // need explicit save data at load fixes
-    SetUInt64Value(ITEM_FIELD_CREATOR, MAKE_NEW_GUID(fields[0].GetUInt32(), 0, HIGHGUID_PLAYER));
-    SetUInt64Value(ITEM_FIELD_GIFTCREATOR, MAKE_NEW_GUID(fields[1].GetUInt32(), 0, HIGHGUID_PLAYER));
+    SetGuidValue(ITEM_FIELD_CREATOR, ObjectGuid(HIGHGUID_PLAYER, fields[0].GetUInt32()));
+    SetGuidValue(ITEM_FIELD_GIFTCREATOR, ObjectGuid(HIGHGUID_PLAYER, fields[1].GetUInt32()));
     SetCount(fields[2].GetUInt32());
 
     uint32 duration = fields[3].GetUInt32();
@@ -658,7 +661,7 @@ void Item::SetState(ItemUpdateState state, Player* forplayer)
         if (forplayer)
         {
             RemoveFromUpdateQueueOf(forplayer);
-            forplayer->DeleteRefundReference(GetGUIDLow());
+            forplayer->DeleteRefundReference(GetGUID());
         }
         delete this;
         return;
@@ -690,7 +693,8 @@ void Item::AddToUpdateQueueOf(Player* player)
 
     if (player->GetGUID() != GetOwnerGUID())
     {
-        TC_LOG_DEBUG("entities.player.items", "Item::AddToUpdateQueueOf - Owner's guid (%u) and player's guid (%u) don't match!", GUID_LOPART(GetOwnerGUID()), player->GetGUIDLow());
+        TC_LOG_DEBUG("entities.player.items", "Item::AddToUpdateQueueOf - Owner's guid (%s) and player's guid (%s) don't match!",
+            GetOwnerGUID().ToString().c_str(), player->GetGUID().ToString().c_str());
         return;
     }
 
@@ -710,7 +714,8 @@ void Item::RemoveFromUpdateQueueOf(Player* player)
 
     if (player->GetGUID() != GetOwnerGUID())
     {
-        TC_LOG_DEBUG("entities.player.items", "Item::RemoveFromUpdateQueueOf - Owner's guid (%u) and player's guid (%u) don't match!", GUID_LOPART(GetOwnerGUID()), player->GetGUIDLow());
+        TC_LOG_DEBUG("entities.player.items", "Item::RemoveFromUpdateQueueOf - Owner's guid (%s) and player's guid (%s) don't match!",
+            GetOwnerGUID().ToString().c_str(), player->GetGUID().ToString().c_str());
         return;
     }
 
@@ -862,7 +867,7 @@ bool Item::IsFitToSpellRequirements(SpellInfo const* spellInfo) const
     return true;
 }
 
-void Item::SetEnchantment(EnchantmentSlot slot, uint32 id, uint32 duration, uint32 charges, uint64 caster /*= 0*/)
+void Item::SetEnchantment(EnchantmentSlot slot, uint32 id, uint32 duration, uint32 charges, ObjectGuid caster /*= ObjectGuid::Empty*/)
 {
     // Better lost small time at check in comparison lost time at item save to DB.
     if ((GetEnchantmentId(slot) == id) && (GetEnchantmentDuration(slot) == duration) && (GetEnchantmentCharges(slot) == charges))
@@ -872,7 +877,7 @@ void Item::SetEnchantment(EnchantmentSlot slot, uint32 id, uint32 duration, uint
     if (slot < MAX_INSPECTED_ENCHANTMENT_SLOT)
     {
         if (uint32 oldEnchant = GetEnchantmentId(slot))
-            owner->GetSession()->SendEnchantmentLog(GetOwnerGUID(), 0, GetEntry(), oldEnchant);
+            owner->GetSession()->SendEnchantmentLog(GetOwnerGUID(), ObjectGuid::Empty, GetEntry(), oldEnchant);
 
         if (id)
             owner->GetSession()->SendEnchantmentLog(GetOwnerGUID(), caster, GetEntry(), id);
@@ -1056,8 +1061,8 @@ Item* Item::CloneItem(uint32 count, Player const* player) const
     if (!newItem)
         return NULL;
 
-    newItem->SetUInt32Value(ITEM_FIELD_CREATOR,      GetUInt32Value(ITEM_FIELD_CREATOR));
-    newItem->SetUInt32Value(ITEM_FIELD_GIFTCREATOR,  GetUInt32Value(ITEM_FIELD_GIFTCREATOR));
+    newItem->SetGuidValue(ITEM_FIELD_CREATOR, GetGuidValue(ITEM_FIELD_CREATOR));
+    newItem->SetGuidValue(ITEM_FIELD_GIFTCREATOR, GetGuidValue(ITEM_FIELD_GIFTCREATOR));
     newItem->SetUInt32Value(ITEM_FIELD_FLAGS,        GetUInt32Value(ITEM_FIELD_FLAGS) & ~(ITEM_FLAG_REFUNDABLE | ITEM_FLAG_BOP_TRADEABLE));
     newItem->SetUInt32Value(ITEM_FIELD_DURATION,     GetUInt32Value(ITEM_FIELD_DURATION));
     // player CAN be NULL in which case we must not update random properties because that accesses player's item update queue
@@ -1138,7 +1143,7 @@ void Item::SetNotRefundable(Player* owner, bool changestate /*=true*/, SQLTransa
     SetPaidExtendedCost(0);
     DeleteRefundDataFromDB(trans);
 
-    owner->DeleteRefundReference(GetGUIDLow());
+    owner->DeleteRefundReference(GetGUID());
 }
 
 void Item::UpdatePlayedTime(Player* owner)
diff --git a/src/server/game/Entities/Item/Item.h b/src/server/game/Entities/Item/Item.h
index 25472ff83ee..dbcf023b842 100644
--- a/src/server/game/Entities/Item/Item.h
+++ b/src/server/game/Entities/Item/Item.h
@@ -224,8 +224,8 @@ class Item : public Object
 
         ItemTemplate const* GetTemplate() const;
 
-        uint64 GetOwnerGUID()    const { return GetUInt64Value(ITEM_FIELD_OWNER); }
-        void SetOwnerGUID(uint64 guid) { SetUInt64Value(ITEM_FIELD_OWNER, guid); }
+        ObjectGuid GetOwnerGUID()    const { return GetGuidValue(ITEM_FIELD_OWNER); }
+        void SetOwnerGUID(ObjectGuid guid) { SetGuidValue(ITEM_FIELD_OWNER, guid); }
         Player* GetOwner()const;
 
         void SetBinding(bool val) { ApplyModFlag(ITEM_FIELD_FLAGS, ITEM_FLAG_SOULBOUND, val); }
@@ -235,7 +235,7 @@ class Item : public Object
         bool IsBindedNotWith(Player const* player) const;
         bool IsBoundByEnchant() const;
         virtual void SaveToDB(SQLTransaction& trans);
-        virtual bool LoadFromDB(uint32 guid, uint64 owner_guid, Field* fields, uint32 entry);
+        virtual bool LoadFromDB(uint32 guid, ObjectGuid owner_guid, Field* fields, uint32 entry);
         static void DeleteFromDB(SQLTransaction& trans, uint32 itemGuid);
         virtual void DeleteFromDB(SQLTransaction& trans);
         static void DeleteFromInventoryDB(SQLTransaction& trans, uint32 itemGuid);
@@ -296,7 +296,7 @@ class Item : public Object
         void SetItemRandomProperties(int32 randomPropId);
         void UpdateItemSuffixFactor();
         static int32 GenerateItemRandomPropertyId(uint32 item_id);
-        void SetEnchantment(EnchantmentSlot slot, uint32 id, uint32 duration, uint32 charges, uint64 caster = 0);
+        void SetEnchantment(EnchantmentSlot slot, uint32 id, uint32 duration, uint32 charges, ObjectGuid caster = ObjectGuid::Empty);
         void SetEnchantmentDuration(EnchantmentSlot slot, uint32 duration, Player* owner);
         void SetEnchantmentCharges(EnchantmentSlot slot, uint32 charges);
         void ClearEnchantment(EnchantmentSlot slot);
diff --git a/src/server/game/Entities/Object/Object.cpp b/src/server/game/Entities/Object/Object.cpp
index 85af475de42..95d4be25630 100644
--- a/src/server/game/Entities/Object/Object.cpp
+++ b/src/server/game/Entities/Object/Object.cpp
@@ -53,25 +53,6 @@
 #include "Battleground.h"
 #include "Chat.h"
 
-uint32 GuidHigh2TypeId(uint32 guid_hi)
-{
-    switch (guid_hi)
-    {
-        case HIGHGUID_ITEM:         return TYPEID_ITEM;
-        //case HIGHGUID_CONTAINER:    return TYPEID_CONTAINER; HIGHGUID_CONTAINER == HIGHGUID_ITEM currently
-        case HIGHGUID_UNIT:         return TYPEID_UNIT;
-        case HIGHGUID_PET:          return TYPEID_UNIT;
-        case HIGHGUID_PLAYER:       return TYPEID_PLAYER;
-        case HIGHGUID_GAMEOBJECT:   return TYPEID_GAMEOBJECT;
-        case HIGHGUID_DYNAMICOBJECT:return TYPEID_DYNAMICOBJECT;
-        case HIGHGUID_CORPSE:       return TYPEID_CORPSE;
-        case HIGHGUID_AREATRIGGER:  return TYPEID_AREATRIGGER;
-        case HIGHGUID_MO_TRANSPORT: return TYPEID_GAMEOBJECT;
-        case HIGHGUID_VEHICLE:      return TYPEID_UNIT;
-    }
-    return NUM_CLIENT_OBJECT_TYPES;                         // unknown
-}
-
 Object::Object() : m_PackGUID(sizeof(uint64)+1)
 {
     m_objectTypeId      = TYPEID_OBJECT;
@@ -84,8 +65,6 @@ Object::Object() : m_PackGUID(sizeof(uint64)+1)
 
     m_inWorld           = false;
     m_objectUpdated     = false;
-
-    m_PackGUID.appendPackGUID(0);
 }
 
 WorldObject::~WorldObject()
@@ -95,8 +74,8 @@ WorldObject::~WorldObject()
     {
         if (GetTypeId() == TYPEID_CORPSE)
         {
-            TC_LOG_FATAL("misc", "Object::~Object Corpse guid=" UI64FMTD ", type=%d, entry=%u deleted but still in map!!",
-                GetGUID(), ((Corpse*)this)->GetType(), GetEntry());
+            TC_LOG_FATAL("misc", "WorldObject::~WorldObject Corpse Type: %d (%s) deleted but still in map!!",
+                ToCorpse()->GetType(), GetGUID().ToString().c_str());
             ASSERT(false);
         }
         ResetMap();
@@ -107,7 +86,7 @@ Object::~Object()
 {
     if (IsInWorld())
     {
-        TC_LOG_FATAL("misc", "Object::~Object - guid=" UI64FMTD ", typeid=%d, entry=%u deleted but still in world!!", GetGUID(), GetTypeId(), GetEntry());
+        TC_LOG_FATAL("misc", "Object::~Object %s deleted but still in world!!", GetGUID().ToString().c_str());
         if (isType(TYPEMASK_ITEM))
             TC_LOG_FATAL("misc", "Item slot %u", ((Item*)this)->GetSlot());
         ASSERT(false);
@@ -116,7 +95,7 @@ Object::~Object()
 
     if (m_objectUpdated)
     {
-        TC_LOG_FATAL("misc", "Object::~Object - guid=" UI64FMTD ", typeid=%d, entry=%u deleted but still in update list!!", GetGUID(), GetTypeId(), GetEntry());
+        TC_LOG_FATAL("misc", "Object::~Object %s deleted but still in update list!!", GetGUID().ToString().c_str());
         ASSERT(false);
         sObjectAccessor->RemoveUpdateObject(this);
     }
@@ -139,11 +118,10 @@ void Object::_Create(uint32 guidlow, uint32 entry, HighGuid guidhigh)
 {
     if (!m_uint32Values) _InitValues();
 
-    uint64 guid = MAKE_NEW_GUID(guidlow, entry, guidhigh);
-    SetUInt64Value(OBJECT_FIELD_GUID, guid);
+    ObjectGuid guid(guidhigh, entry, guidlow);
+    SetGuidValue(OBJECT_FIELD_GUID, guid);
     SetUInt16Value(OBJECT_FIELD_TYPE, 0, m_objectType);
-    m_PackGUID.clear();
-    m_PackGUID.appendPackGUID(GetGUID());
+    m_PackGUID.Set(guid);
 }
 
 std::string Object::_ConcatFields(uint16 startIndex, uint16 size) const
@@ -203,14 +181,14 @@ void Object::BuildCreateUpdateBlockForPlayer(UpdateData* data, Player* target) c
         case HIGHGUID_VEHICLE:
         {
             if (TempSummon const* summon = ToUnit()->ToTempSummon())
-                if (IS_PLAYER_GUID(summon->GetSummonerGUID()))
+                if (summon->GetSummonerGUID().IsPlayer())
                     updateType = UPDATETYPE_CREATE_OBJECT2;
 
             break;
         }
         case HIGHGUID_GAMEOBJECT:
         {
-            if (IS_PLAYER_GUID(ToGameObject()->GetOwnerGUID()))
+            if (ToGameObject()->GetOwnerGUID().IsPlayer())
                 updateType = UPDATETYPE_CREATE_OBJECT2;
             break;
         }
@@ -248,7 +226,7 @@ void Object::BuildCreateUpdateBlockForPlayer(UpdateData* data, Player* target) c
 
     ByteBuffer buf(500);
     buf << uint8(updateType);
-    buf.append(GetPackGUID());
+    buf << GetPackGUID();
     buf << uint8(m_objectTypeId);
 
     BuildMovementUpdate(&buf, flags);
@@ -272,7 +250,7 @@ void Object::BuildValuesUpdateBlockForPlayer(UpdateData* data, Player* target) c
     ByteBuffer buf(500);
 
     buf << uint8(UPDATETYPE_VALUES);
-    buf.append(GetPackGUID());
+    buf << GetPackGUID();
 
     BuildValuesUpdate(UPDATETYPE_VALUES, &buf, target);
 
@@ -347,6 +325,12 @@ uint16 Object::GetUInt16Value(uint16 index, uint8 offset) const
     return *(((uint16*)&m_uint32Values[index])+offset);
 }
 
+ObjectGuid Object::GetGuidValue(uint16 index) const
+{
+    ASSERT(index + 1 < m_valuesCount || PrintIndexError(index, false));
+    return *((ObjectGuid*)&(m_uint32Values[index]));
+}
+
 void Object::BuildMovementUpdate(ByteBuffer* data, uint16 flags) const
 {
     Unit const* self = NULL;
@@ -861,13 +845,12 @@ void Object::SetUInt64Value(uint16 index, uint64 value)
     }
 }
 
-bool Object::AddUInt64Value(uint16 index, uint64 value)
+bool Object::AddGuidValue(uint16 index, ObjectGuid value)
 {
     ASSERT(index + 1 < m_valuesCount || PrintIndexError(index, true));
-    if (value && !*((uint64*)&(m_uint32Values[index])))
+    if (value && !*((ObjectGuid*)&(m_uint32Values[index])))
     {
-        m_uint32Values[index] = PAIR64_LOPART(value);
-        m_uint32Values[index + 1] = PAIR64_HIPART(value);
+        *((ObjectGuid*)&(m_uint32Values[index])) = value;
         _changesMask.SetBit(index);
         _changesMask.SetBit(index + 1);
 
@@ -883,10 +866,10 @@ bool Object::AddUInt64Value(uint16 index, uint64 value)
     return false;
 }
 
-bool Object::RemoveUInt64Value(uint16 index, uint64 value)
+bool Object::RemoveGuidValue(uint16 index, ObjectGuid value)
 {
     ASSERT(index + 1 < m_valuesCount || PrintIndexError(index, true));
-    if (value && *((uint64*)&(m_uint32Values[index])) == value)
+    if (value && *((ObjectGuid*)&(m_uint32Values[index])) == value)
     {
         m_uint32Values[index] = 0;
         m_uint32Values[index + 1] = 0;
@@ -970,6 +953,23 @@ void Object::SetUInt16Value(uint16 index, uint8 offset, uint16 value)
     }
 }
 
+void Object::SetGuidValue(uint16 index, ObjectGuid value)
+{
+    ASSERT(index + 1 < m_valuesCount || PrintIndexError(index, true));
+    if (*((ObjectGuid*)&(m_uint32Values[index])) != value)
+    {
+        *((ObjectGuid*)&(m_uint32Values[index])) = value;
+        _changesMask.SetBit(index);
+        _changesMask.SetBit(index + 1);
+
+        if (m_inWorld && !m_objectUpdated)
+        {
+            sObjectAccessor->AddUpdateObject(this);
+            m_objectUpdated = true;
+        }
+    }
+}
+
 void Object::SetStatFloatValue(uint16 index, float value)
 {
     if (value < 0)
@@ -1246,7 +1246,7 @@ ByteBuffer& operator<<(ByteBuffer& buf, Position::PositionXYZOStreamer const& st
 void MovementInfo::OutDebug()
 {
     TC_LOG_INFO("misc", "MOVEMENT INFO");
-    TC_LOG_INFO("misc", "guid " UI64FMTD, guid);
+    TC_LOG_INFO("misc", "%s", guid.ToString().c_str());
     TC_LOG_INFO("misc", "flags %s (%u)", Movement::MovementFlags_ToString(flags).c_str(), flags);
     TC_LOG_INFO("misc", "flags2 %s (%u)", Movement::MovementFlagsExtra_ToString(flags2).c_str(), flags2);
     TC_LOG_INFO("misc", "time %u current time %u", time, getMSTime());
@@ -1254,7 +1254,7 @@ void MovementInfo::OutDebug()
     if (transport.guid)
     {
         TC_LOG_INFO("misc", "TRANSPORT:");
-        TC_LOG_INFO("misc", "guid: " UI64FMTD, transport.guid);
+        TC_LOG_INFO("misc", "%s", transport.guid.ToString().c_str());
         TC_LOG_INFO("misc", "position: `%s`", transport.pos.ToString().c_str());
         TC_LOG_INFO("misc", "seat: %i", transport.seat);
         TC_LOG_INFO("misc", "time: %u", transport.time);
@@ -2079,7 +2079,7 @@ void WorldObject::SendMessageToSet(WorldPacket* data, Player const* skipped_rcvr
     VisitNearbyWorldObject(GetVisibilityRange(), notifier);
 }
 
-void WorldObject::SendObjectDeSpawnAnim(uint64 guid)
+void WorldObject::SendObjectDeSpawnAnim(ObjectGuid guid)
 {
     WorldPacket data(SMSG_GAMEOBJECT_DESPAWN_ANIM, 8);
     data << uint64(guid);
@@ -2811,7 +2811,7 @@ struct WorldObjectChangeAccumulator
 {
     UpdateDataMapType& i_updateDatas;
     WorldObject& i_object;
-    std::set<uint64> plr_list;
+    GuidSet plr_list;
     WorldObjectChangeAccumulator(WorldObject &obj, UpdateDataMapType &d) : i_updateDatas(d), i_object(obj) { }
     void Visit(PlayerMapType &m)
     {
@@ -2852,13 +2852,13 @@ struct WorldObjectChangeAccumulator
         for (DynamicObjectMapType::iterator iter = m.begin(); iter != m.end(); ++iter)
         {
             source = iter->GetSource();
-            uint64 guid = source->GetCasterGUID();
+            ObjectGuid guid = source->GetCasterGUID();
 
-            if (IS_PLAYER_GUID(guid))
+            if (guid.IsPlayer())
             {
                 //Caster may be NULL if DynObj is in removelist
                 if (Player* caster = ObjectAccessor::FindPlayer(guid))
-                    if (caster->GetUInt64Value(PLAYER_FARSIGHT) == source->GetGUID())
+                    if (caster->GetGuidValue(PLAYER_FARSIGHT) == source->GetGUID())
                         BuildPacket(caster);
             }
         }
@@ -2891,9 +2891,9 @@ void WorldObject::BuildUpdate(UpdateDataMapType& data_map)
     ClearUpdateMask(false);
 }
 
-uint64 WorldObject::GetTransGUID() const
+ObjectGuid WorldObject::GetTransGUID() const
 {
     if (GetTransport())
         return GetTransport()->GetGUID();
-    return 0;
+    return ObjectGuid::Empty;
 }
diff --git a/src/server/game/Entities/Object/Object.h b/src/server/game/Entities/Object/Object.h
index 01d7b6b000f..b8410ec307c 100644
--- a/src/server/game/Entities/Object/Object.h
+++ b/src/server/game/Entities/Object/Object.h
@@ -46,37 +46,6 @@
 #define NOMINAL_MELEE_RANGE         5.0f
 #define MELEE_RANGE                 (NOMINAL_MELEE_RANGE - MIN_MELEE_REACH * 2) //center to center for players
 
-enum TypeMask
-{
-    TYPEMASK_OBJECT         = 0x0001,
-    TYPEMASK_ITEM           = 0x0002,
-    TYPEMASK_CONTAINER      = 0x0006,                       // TYPEMASK_ITEM | 0x0004
-    TYPEMASK_UNIT           = 0x0008,                       // creature
-    TYPEMASK_PLAYER         = 0x0010,
-    TYPEMASK_GAMEOBJECT     = 0x0020,
-    TYPEMASK_DYNAMICOBJECT  = 0x0040,
-    TYPEMASK_CORPSE         = 0x0080,
-    TYPEMASK_AREATRIGGER    = 0x0100,
-    TYPEMASK_SEER           = TYPEMASK_PLAYER | TYPEMASK_UNIT | TYPEMASK_DYNAMICOBJECT
-};
-
-enum TypeID
-{
-    TYPEID_OBJECT        = 0,
-    TYPEID_ITEM          = 1,
-    TYPEID_CONTAINER     = 2,
-    TYPEID_UNIT          = 3,
-    TYPEID_PLAYER        = 4,
-    TYPEID_GAMEOBJECT    = 5,
-    TYPEID_DYNAMICOBJECT = 6,
-    TYPEID_CORPSE        = 7,
-    TYPEID_AREATRIGGER   = 8
-};
-
-#define NUM_CLIENT_OBJECT_TYPES             9
-
-uint32 GuidHigh2TypeId(uint32 guid_hi);
-
 enum TempSummonType
 {
     TEMPSUMMON_TIMED_OR_DEAD_DESPAWN       = 1,             // despawns after a specified time OR when the creature disappears
@@ -120,62 +89,6 @@ class ZoneScript;
 
 typedef std::unordered_map<Player*, UpdateData> UpdateDataMapType;
 
-//! Structure to ease conversions from single 64 bit integer guid into individual bytes, for packet sending purposes
-//! Nuke this out when porting ObjectGuid from MaNGOS, but preserve the per-byte storage
-struct ObjectGuid
-{
-    public:
-        ObjectGuid() { _data.u64 = UI64LIT(0); }
-        ObjectGuid(uint64 guid) { _data.u64 = guid; }
-        ObjectGuid(ObjectGuid const& other) { _data.u64 = other._data.u64; }
-
-        uint8& operator[](uint32 index)
-        {
-            ASSERT(index < sizeof(uint64));
-
-#if TRINITY_ENDIAN == TRINITY_LITTLEENDIAN
-            return _data.byte[index];
-#else
-            return _data.byte[7 - index];
-#endif
-        }
-
-        uint8 const& operator[](uint32 index) const
-        {
-            ASSERT(index < sizeof(uint64));
-
-#if TRINITY_ENDIAN == TRINITY_LITTLEENDIAN
-            return _data.byte[index];
-#else
-            return _data.byte[7 - index];
-#endif
-        }
-
-        operator uint64()
-        {
-            return _data.u64;
-        }
-
-        ObjectGuid& operator=(uint64 guid)
-        {
-            _data.u64 = guid;
-            return *this;
-        }
-
-        ObjectGuid& operator=(ObjectGuid const& other)
-        {
-            _data.u64 = other._data.u64;
-            return *this;
-        }
-
-    private:
-        union
-        {
-            uint64 u64;
-            uint8 byte[8];
-        } _data;
-};
-
 class Object
 {
     public:
@@ -186,11 +99,11 @@ class Object
         virtual void AddToWorld();
         virtual void RemoveFromWorld();
 
-        uint64 GetGUID() const { return GetUInt64Value(0); }
-        uint32 GetGUIDLow() const { return GUID_LOPART(GetUInt64Value(0)); }
-        uint32 GetGUIDMid() const { return GUID_ENPART(GetUInt64Value(0)); }
-        uint32 GetGUIDHigh() const { return GUID_HIPART(GetUInt64Value(0)); }
-        const ByteBuffer& GetPackGUID() const { return m_PackGUID; }
+        ObjectGuid GetGUID() const { return GetGuidValue(OBJECT_FIELD_GUID); }
+        uint32 GetGUIDLow() const { return GetGuidValue(OBJECT_FIELD_GUID).GetCounter(); }
+        uint32 GetGUIDMid() const { return GetGuidValue(OBJECT_FIELD_GUID).GetEntry(); }
+        uint32 GetGUIDHigh() const { return GetGuidValue(OBJECT_FIELD_GUID).GetHigh(); }
+        PackedGuid const& GetPackGUID() const { return m_PackGUID; }
         uint32 GetEntry() const { return GetUInt32Value(OBJECT_FIELD_ENTRY); }
         void SetEntry(uint32 entry) { SetUInt32Value(OBJECT_FIELD_ENTRY, entry); }
 
@@ -214,6 +127,7 @@ class Object
         float GetFloatValue(uint16 index) const;
         uint8 GetByteValue(uint16 index, uint8 offset) const;
         uint16 GetUInt16Value(uint16 index, uint8 offset) const;
+        ObjectGuid GetGuidValue(uint16 index) const;
 
         void SetInt32Value(uint16 index, int32 value);
         void SetUInt32Value(uint16 index, uint32 value);
@@ -223,11 +137,12 @@ class Object
         void SetByteValue(uint16 index, uint8 offset, uint8 value);
         void SetUInt16Value(uint16 index, uint8 offset, uint16 value);
         void SetInt16Value(uint16 index, uint8 offset, int16 value) { SetUInt16Value(index, offset, (uint16)value); }
+        void SetGuidValue(uint16 index, ObjectGuid value);
         void SetStatFloatValue(uint16 index, float value);
         void SetStatInt32Value(uint16 index, int32 value);
 
-        bool AddUInt64Value(uint16 index, uint64 value);
-        bool RemoveUInt64Value(uint16 index, uint64 value);
+        bool AddGuidValue(uint16 index, ObjectGuid value);
+        bool RemoveGuidValue(uint16 index, ObjectGuid value);
 
         void ApplyModUInt32Value(uint16 index, int32 val, bool apply);
         void ApplyModInt32Value(uint16 index, int32 val, bool apply);
@@ -325,7 +240,7 @@ class Object
     private:
         bool m_inWorld;
 
-        ByteBuffer m_PackGUID;
+        PackedGuid m_PackGUID;
 
         // for output helpfull error messages from asserts
         bool PrintIndexError(uint32 index, bool set) const;
@@ -470,7 +385,7 @@ ByteBuffer& operator<<(ByteBuffer& buf, Position::PositionXYZOStreamer const& st
 struct MovementInfo
 {
     // common
-    uint64 guid;
+    ObjectGuid guid;
     uint32 flags;
     uint16 flags2;
     Position pos;
@@ -481,7 +396,7 @@ struct MovementInfo
     {
         void Reset()
         {
-            guid = 0;
+            guid.Clear();
             pos.Relocate(0.0f, 0.0f, 0.0f, 0.0f);
             seat = -1;
             time = 0;
@@ -489,7 +404,7 @@ struct MovementInfo
             time3 = 0;
         }
 
-        uint64 guid;
+        ObjectGuid guid;
         Position pos;
         int8 seat;
         uint32 time;
@@ -519,7 +434,7 @@ struct MovementInfo
     float splineElevation;
 
     MovementInfo() :
-        guid(0), flags(0), flags2(0), time(0), pitch(0.0f), splineElevation(0.0f)
+        flags(0), flags2(0), time(0), pitch(0.0f), splineElevation(0.0f)
     {
         pos.Relocate(0.0f, 0.0f, 0.0f, 0.0f);
         transport.Reset();
@@ -734,7 +649,7 @@ class WorldObject : public Object, public WorldLocation
         void PlayDistanceSound(uint32 sound_id, Player* target = NULL);
         void PlayDirectSound(uint32 sound_id, Player* target = NULL);
 
-        void SendObjectDeSpawnAnim(uint64 guid);
+        void SendObjectDeSpawnAnim(ObjectGuid guid);
 
         virtual void SaveRespawnTime() { }
         void AddObjectToRemoveList();
@@ -818,7 +733,7 @@ class WorldObject : public Object, public WorldLocation
         float GetTransOffsetO() const { return m_movementInfo.transport.pos.GetOrientation(); }
         uint32 GetTransTime()   const { return m_movementInfo.transport.time; }
         int8 GetTransSeat()     const { return m_movementInfo.transport.seat; }
-        virtual uint64 GetTransGUID()   const;
+        virtual ObjectGuid GetTransGUID() const;
         void SetTransport(Transport* t) { m_transport = t; }
 
         MovementInfo m_movementInfo;
diff --git a/src/server/game/Entities/Object/ObjectDefines.h b/src/server/game/Entities/Object/ObjectDefines.h
index 03a4f80bf60..3b7709bc1f1 100644
--- a/src/server/game/Entities/Object/ObjectDefines.h
+++ b/src/server/game/Entities/Object/ObjectDefines.h
@@ -20,25 +20,7 @@
 #define TRINITY_OBJECTDEFINES_H
 
 #include "Define.h"
-
-enum HighGuid
-{
-    HIGHGUID_ITEM           = 0x400,                       // blizz 4000
-    HIGHGUID_CONTAINER      = 0x400,                       // blizz 4000
-    HIGHGUID_PLAYER         = 0x000,                       // blizz 0000
-    HIGHGUID_GAMEOBJECT     = 0xF11,                       // blizz F110
-    HIGHGUID_TRANSPORT      = 0xF12,                       // blizz F120 (for GAMEOBJECT_TYPE_TRANSPORT)
-    HIGHGUID_UNIT           = 0xF13,                       // blizz F130
-    HIGHGUID_PET            = 0xF14,                       // blizz F140
-    HIGHGUID_VEHICLE        = 0xF15,                       // blizz F550
-    HIGHGUID_DYNAMICOBJECT  = 0xF10,                       // blizz F100
-    HIGHGUID_CORPSE         = 0xF101,                      // blizz F100
-    HIGHGUID_AREATRIGGER    = 0xF102,                      // blizz F100
-    HIGHGUID_BATTLEGROUND   = 0x1F1,                       // new 4.x
-    HIGHGUID_MO_TRANSPORT   = 0x1FC,                       // blizz 1FC0 (for GAMEOBJECT_TYPE_MO_TRANSPORT)
-    HIGHGUID_GROUP          = 0x1F5,
-    HIGHGUID_GUILD          = 0x1FF                        // new 4.x
-};
+#include "ObjectGuid.h"
 
 // used for creating values for respawn for example
 inline uint64 MAKE_PAIR64(uint32 l, uint32 h);
@@ -49,37 +31,6 @@ inline uint32 MAKE_PAIR32(uint16 l, uint16 h);
 inline uint16 PAIR32_HIPART(uint32 x);
 inline uint16 PAIR32_LOPART(uint32 x);
 
-inline bool IS_EMPTY_GUID(uint64 guid);
-inline bool IS_CREATURE_GUID(uint64 guid);
-inline bool IS_PET_GUID(uint64 guid);
-inline bool IS_VEHICLE_GUID(uint64 guid);
-inline bool IS_CRE_OR_VEH_GUID(uint64 guid);
-inline bool IS_CRE_OR_VEH_OR_PET_GUID(uint64 guid);
-inline bool IS_PLAYER_GUID(uint64 guid);
-inline bool IS_GUILD_GUID(uint64 guid);
-inline bool IS_UNIT_GUID(uint64 guid);
-inline bool IS_ITEM_GUID(uint64 guid);
-inline bool IS_GAMEOBJECT_GUID(uint64 guid);
-inline bool IS_DYNAMICOBJECT_GUID(uint64 guid);
-inline bool IS_CORPSE_GUID(uint64 guid);
-inline bool IS_TRANSPORT_GUID(uint64 guid);
-inline bool IS_MO_TRANSPORT_GUID(uint64 guid);
-inline bool IS_GROUP_GUID(uint64 guid);
-inline bool IS_AREATRIGGER_GUID(uint64 guid);
-
-// l - OBJECT_FIELD_GUID
-// e - OBJECT_FIELD_ENTRY for GO (except GAMEOBJECT_TYPE_MO_TRANSPORT) and creatures or UNIT_FIELD_PETNUMBER for pets
-// h - OBJECT_FIELD_GUID + 1
-inline uint64 MAKE_NEW_GUID(uint32 l, uint32 e, uint32 h);
-
-//#define GUID_HIPART(x)   (uint32)((uint64(x) >> 52)) & 0x0000FFFF)
-inline uint32 GUID_HIPART(uint64 guid);
-inline uint32 GUID_ENPART(uint64 x);
-inline uint32 GUID_LOPART(uint64 x);
-
-inline bool IsGuidHaveEnPart(uint64 guid);
-inline char const* GetLogNameForGuid(uint64 guid);
-
 uint64 MAKE_PAIR64(uint32 l, uint32 h)
 {
     return uint64(l | (uint64(h) << 32));
@@ -115,158 +66,4 @@ uint16 PAIR32_LOPART(uint32 x)
     return (uint16)(x & 0x0000FFFF);
 }
 
-bool IS_EMPTY_GUID(uint64 guid)
-{
-    return guid == 0;
-}
-
-bool IS_CREATURE_GUID(uint64 guid)
-{
-    return GUID_HIPART(guid) == HIGHGUID_UNIT;
-}
-
-bool IS_PET_GUID(uint64 guid)
-{
-    return GUID_HIPART(guid) == HIGHGUID_PET;
-}
-
-bool IS_VEHICLE_GUID(uint64 guid)
-{
-    return GUID_HIPART(guid) == HIGHGUID_VEHICLE;
-}
-
-bool IS_CRE_OR_VEH_GUID(uint64 guid)
-{
-    return IS_CREATURE_GUID(guid) || IS_VEHICLE_GUID(guid);
-}
-
-bool IS_CRE_OR_VEH_OR_PET_GUID(uint64 guid)
-{
-    return IS_CRE_OR_VEH_GUID(guid) || IS_PET_GUID(guid);
-}
-
-bool IS_PLAYER_GUID(uint64 guid)
-{
-    return guid != 0 && GUID_HIPART(guid) == HIGHGUID_PLAYER;
-}
-
-bool IS_GUILD_GUID(uint64 guid)
-{
-    return GUID_HIPART(guid) == HIGHGUID_GUILD;
-}
-
-bool IS_UNIT_GUID(uint64 guid)
-{
-    return IS_CRE_OR_VEH_OR_PET_GUID(guid) || IS_PLAYER_GUID(guid);
-}
-
-bool IS_ITEM_GUID(uint64 guid)
-{
-    return GUID_HIPART(guid) == HIGHGUID_ITEM;
-}
-
-bool IS_GAMEOBJECT_GUID(uint64 guid)
-{
-    return GUID_HIPART(guid) == HIGHGUID_GAMEOBJECT;
-}
-
-bool IS_DYNAMICOBJECT_GUID(uint64 guid)
-{
-    return GUID_HIPART(guid) == HIGHGUID_DYNAMICOBJECT;
-}
-
-bool IS_CORPSE_GUID(uint64 guid)
-{
-    return GUID_HIPART(guid) == HIGHGUID_CORPSE;
-}
-
-bool IS_TRANSPORT_GUID(uint64 guid)
-{
-    return GUID_HIPART(guid) == HIGHGUID_TRANSPORT;
-}
-
-bool IS_MO_TRANSPORT_GUID(uint64 guid)
-{
-    return GUID_HIPART(guid) == HIGHGUID_MO_TRANSPORT;
-}
-
-bool IS_GROUP_GUID(uint64 guid)
-{
-    return GUID_HIPART(guid) == HIGHGUID_GROUP;
-}
-
-bool IS_AREATRIGGER_GUID(uint64 guid)
-{
-    return GUID_HIPART(guid) == HIGHGUID_AREATRIGGER;
-}
-
-uint64 MAKE_NEW_GUID(uint32 l, uint32 e, uint32 h)
-{
-    return uint64(uint64(l) | (uint64(e) << 32) | (uint64(h) << ((h == HIGHGUID_CORPSE || h == HIGHGUID_AREATRIGGER) ? 48 : 52)));
-}
-
-uint32 GUID_HIPART(uint64 guid)
-{
-    uint32 t = ((uint64(guid) >> 48) & 0x0000FFFF);
-    return (t == HIGHGUID_CORPSE || t == HIGHGUID_AREATRIGGER) ? t : ((t >> 4) & 0x00000FFF);
-}
-
-uint32 GUID_ENPART(uint64 x)
-{
-    return IsGuidHaveEnPart(x)
-            ? ((uint32)((x >> 32) & UI64LIT(0x00000000000FFFFF)))
-            : 0;
-}
-
-uint32 GUID_LOPART(uint64 x)
-{
-    // _GUID_LOPART_3 and _GUID_LOPART_2 were both equal to PAIR64_LOPART
-    return PAIR64_LOPART(x);
-}
-
-bool IsGuidHaveEnPart(uint64 guid)
-{
-    switch (GUID_HIPART(guid))
-    {
-        case HIGHGUID_ITEM:
-        case HIGHGUID_PLAYER:
-        case HIGHGUID_DYNAMICOBJECT:
-        case HIGHGUID_CORPSE:
-        case HIGHGUID_GROUP:
-        case HIGHGUID_GUILD:
-            return false;
-        case HIGHGUID_GAMEOBJECT:
-        case HIGHGUID_TRANSPORT:
-        case HIGHGUID_UNIT:
-        case HIGHGUID_PET:
-        case HIGHGUID_VEHICLE:
-        case HIGHGUID_MO_TRANSPORT:
-        case HIGHGUID_AREATRIGGER:
-        default:
-            return true;
-    }
-}
-
-char const* GetLogNameForGuid(uint64 guid)
-{
-    switch (GUID_HIPART(guid))
-    {
-        case HIGHGUID_ITEM:         return "item";
-        case HIGHGUID_PLAYER:       return guid ? "player" : "none";
-        case HIGHGUID_GAMEOBJECT:   return "gameobject";
-        case HIGHGUID_TRANSPORT:    return "transport";
-        case HIGHGUID_UNIT:         return "creature";
-        case HIGHGUID_PET:          return "pet";
-        case HIGHGUID_VEHICLE:      return "vehicle";
-        case HIGHGUID_DYNAMICOBJECT:return "dynobject";
-        case HIGHGUID_CORPSE:       return "corpse";
-        case HIGHGUID_MO_TRANSPORT: return "mo_transport";
-        case HIGHGUID_GROUP:        return "group";
-        case HIGHGUID_GUILD:        return "guild";
-        case HIGHGUID_AREATRIGGER:  return "areatrigger";
-        default:
-            return "<unknown>";
-    }
-}
-
 #endif
diff --git a/src/server/game/Entities/Object/ObjectGuid.cpp b/src/server/game/Entities/Object/ObjectGuid.cpp
new file mode 100644
index 00000000000..cbd004a21ee
--- /dev/null
+++ b/src/server/game/Entities/Object/ObjectGuid.cpp
@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2008-2014 TrinityCore <http://www.trinitycore.org/>
+ * Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "ObjectGuid.h"
+#include "World.h"
+#include "ObjectMgr.h"
+#include <sstream>
+#include <iomanip>
+
+ObjectGuid const ObjectGuid::Empty = ObjectGuid();
+
+char const* ObjectGuid::GetTypeName(HighGuid high)
+{
+    switch (high)
+    {
+        case HIGHGUID_ITEM:         return "Item";
+        case HIGHGUID_PLAYER:       return "Player";
+        case HIGHGUID_GAMEOBJECT:   return "Gameobject";
+        case HIGHGUID_TRANSPORT:    return "Transport";
+        case HIGHGUID_UNIT:         return "Creature";
+        case HIGHGUID_PET:          return "Pet";
+        case HIGHGUID_VEHICLE:      return "Vehicle";
+        case HIGHGUID_DYNAMICOBJECT: return "DynObject";
+        case HIGHGUID_CORPSE:       return "Corpse";
+        case HIGHGUID_AREATRIGGER:  return "AreaTrigger";
+        case HIGHGUID_BATTLEGROUND: return "Battleground";
+        case HIGHGUID_MO_TRANSPORT: return "MoTransport";
+        case HIGHGUID_INSTANCE:     return "InstanceID";
+        case HIGHGUID_GROUP:        return "Group";
+        case HIGHGUID_GUILD:        return "Guild";
+        default:
+            return "<unknown>";
+    }
+}
+
+std::string ObjectGuid::ToString() const
+{
+    std::ostringstream str;
+    str << "GUID Full: 0x" << std::hex << std::setw(16) << std::setfill('0') << _data._guid << std::dec;
+    str << " Type: " << GetTypeName();
+    if (HasEntry())
+        str << (IsPet() ? " Pet number: " : " Entry: ") << GetEntry() << " ";
+
+    str << " Low: " << GetCounter();
+    return str.str();
+}
+
+template<HighGuid high>
+uint32 ObjectGuidGenerator<high>::Generate()
+{
+    if (_nextGuid >= ObjectGuid::GetMaxCounter(high) - 1)
+    {
+        TC_LOG_ERROR("", "%s guid overflow!! Can't continue, shutting down server. ", ObjectGuid::GetTypeName(high));
+        World::StopNow(ERROR_EXIT_CODE);
+    }
+    return _nextGuid++;
+}
+
+ByteBuffer& operator<<(ByteBuffer& buf, ObjectGuid const& guid)
+{
+    buf << uint64(guid.GetRawValue());
+    return buf;
+}
+
+ByteBuffer& operator>>(ByteBuffer& buf, ObjectGuid& guid)
+{
+    guid.Set(buf.read<uint64>());
+    return buf;
+}
+
+ByteBuffer& operator<<(ByteBuffer& buf, PackedGuid const& guid)
+{
+    buf.append(guid._packedGuid);
+    return buf;
+}
+
+ByteBuffer& operator>>(ByteBuffer& buf, PackedGuidReader const& guid)
+{
+    buf.readPackGUID(*reinterpret_cast<uint64*>(guid.GuidPtr));
+    return buf;
+}
+
+template uint32 ObjectGuidGenerator<HIGHGUID_ITEM>::Generate();
+template uint32 ObjectGuidGenerator<HIGHGUID_PLAYER>::Generate();
+template uint32 ObjectGuidGenerator<HIGHGUID_GAMEOBJECT>::Generate();
+template uint32 ObjectGuidGenerator<HIGHGUID_TRANSPORT>::Generate();
+template uint32 ObjectGuidGenerator<HIGHGUID_UNIT>::Generate();
+template uint32 ObjectGuidGenerator<HIGHGUID_PET>::Generate();
+template uint32 ObjectGuidGenerator<HIGHGUID_VEHICLE>::Generate();
+template uint32 ObjectGuidGenerator<HIGHGUID_DYNAMICOBJECT>::Generate();
+template uint32 ObjectGuidGenerator<HIGHGUID_CORPSE>::Generate();
+template uint32 ObjectGuidGenerator<HIGHGUID_AREATRIGGER>::Generate();
+template uint32 ObjectGuidGenerator<HIGHGUID_BATTLEGROUND>::Generate();
+template uint32 ObjectGuidGenerator<HIGHGUID_INSTANCE>::Generate();
+template uint32 ObjectGuidGenerator<HIGHGUID_GROUP>::Generate();
+template uint32 ObjectGuidGenerator<HIGHGUID_GUILD>::Generate();
diff --git a/src/server/game/Entities/Object/ObjectGuid.h b/src/server/game/Entities/Object/ObjectGuid.h
new file mode 100644
index 00000000000..7ad4952993f
--- /dev/null
+++ b/src/server/game/Entities/Object/ObjectGuid.h
@@ -0,0 +1,289 @@
+/*
+ * Copyright (C) 2008-2014 TrinityCore <http://www.trinitycore.org/>
+ * Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef ObjectGuid_h__
+#define ObjectGuid_h__
+
+#include "Common.h"
+#include "ByteBuffer.h"
+
+#include <functional>
+
+enum TypeID
+{
+    TYPEID_OBJECT        = 0,
+    TYPEID_ITEM          = 1,
+    TYPEID_CONTAINER     = 2,
+    TYPEID_UNIT          = 3,
+    TYPEID_PLAYER        = 4,
+    TYPEID_GAMEOBJECT    = 5,
+    TYPEID_DYNAMICOBJECT = 6,
+    TYPEID_CORPSE        = 7,
+    TYPEID_AREATRIGGER   = 8
+};
+
+#define NUM_CLIENT_OBJECT_TYPES             9
+
+enum TypeMask
+{
+    TYPEMASK_OBJECT         = 0x0001,
+    TYPEMASK_ITEM           = 0x0002,
+    TYPEMASK_CONTAINER      = 0x0006,                       // TYPEMASK_ITEM | 0x0004
+    TYPEMASK_UNIT           = 0x0008,                       // creature
+    TYPEMASK_PLAYER         = 0x0010,
+    TYPEMASK_GAMEOBJECT     = 0x0020,
+    TYPEMASK_DYNAMICOBJECT  = 0x0040,
+    TYPEMASK_CORPSE         = 0x0080,
+    TYPEMASK_AREATRIGGER    = 0x0100,
+    TYPEMASK_SEER           = TYPEMASK_PLAYER | TYPEMASK_UNIT | TYPEMASK_DYNAMICOBJECT
+};
+
+enum HighGuid
+{
+    HIGHGUID_ITEM           = 0x400,                       // blizz 4000
+    HIGHGUID_CONTAINER      = 0x400,                       // blizz 4000
+    HIGHGUID_PLAYER         = 0x000,                       // blizz 0000
+    HIGHGUID_GAMEOBJECT     = 0xF11,                       // blizz F110
+    HIGHGUID_TRANSPORT      = 0xF12,                       // blizz F120 (for GAMEOBJECT_TYPE_TRANSPORT)
+    HIGHGUID_UNIT           = 0xF13,                       // blizz F130
+    HIGHGUID_PET            = 0xF14,                       // blizz F140
+    HIGHGUID_VEHICLE        = 0xF15,                       // blizz F550
+    HIGHGUID_DYNAMICOBJECT  = 0xF10,                       // blizz F100
+    HIGHGUID_CORPSE         = 0xF101,                      // blizz F100
+    HIGHGUID_AREATRIGGER    = 0xF102,
+    HIGHGUID_BATTLEGROUND   = 0x1F1,
+    HIGHGUID_MO_TRANSPORT   = 0x1FC,                       // blizz 1FC0 (for GAMEOBJECT_TYPE_MO_TRANSPORT)
+    HIGHGUID_INSTANCE       = 0x1F4,                       // blizz 1F40
+    HIGHGUID_GROUP          = 0x1F5,
+    HIGHGUID_GUILD          = 0x1FF
+};
+
+class ObjectGuid;
+class PackedGuid;
+
+struct PackedGuidReader
+{
+    explicit PackedGuidReader(ObjectGuid& guid) : GuidPtr(&guid) { }
+    ObjectGuid* GuidPtr;
+};
+
+class ObjectGuid
+{
+    public:
+        static ObjectGuid const Empty;
+
+        ObjectGuid() { _data._guid = UI64LIT(0); }
+        explicit ObjectGuid(uint64 guid)  { _data._guid = guid; }
+        ObjectGuid(HighGuid hi, uint32 entry, uint32 counter) { _data._guid = counter ? uint64(counter) | (uint64(entry) << 24) | (uint64(hi) << ((hi == HIGHGUID_CORPSE || hi == HIGHGUID_AREATRIGGER) ? 48 : 52)) : 0; }
+        ObjectGuid(HighGuid hi, uint32 counter) { _data._guid = counter ? uint64(counter) | (uint64(hi) << ((hi == HIGHGUID_CORPSE || hi == HIGHGUID_AREATRIGGER) ? 48 : 52)) : 0; }
+
+        operator uint64() const { return _data._guid; }
+        PackedGuidReader ReadAsPacked() { return PackedGuidReader(*this); }
+
+        void Set(uint64 guid) { _data._guid = guid; }
+        void Clear() { _data._guid = 0; }
+
+        PackedGuid WriteAsPacked() const;
+
+        uint64   GetRawValue() const { return _data._guid; }
+        HighGuid GetHigh() const
+        {
+            uint32 temp = ((uint64(_data._guid) >> 48) & 0x0000FFFF);
+            return HighGuid((temp == HIGHGUID_CORPSE || temp == HIGHGUID_AREATRIGGER) ? temp : ((temp >> 4) & 0x00000FFF));
+        }
+        uint32   GetEntry() const { return HasEntry() ? uint32((_data._guid >> 32) & UI64LIT(0x00000000000FFFFF)) : 0; }
+        uint32   GetCounter()  const
+        {
+            return uint32(_data._guid & UI64LIT(0x00000000FFFFFFFF));
+        }
+
+        static uint32 GetMaxCounter(HighGuid /*high*/)
+        {
+            return uint32(0xFFFFFFFF);
+        }
+
+        uint32 GetMaxCounter() const { return GetMaxCounter(GetHigh()); }
+
+        uint8& operator[](uint32 index)
+        {
+            ASSERT(index < sizeof(uint64));
+            return _data._bytes[index];
+        }
+
+        uint8 const& operator[](uint32 index) const
+        {
+            ASSERT(index < sizeof(uint64));
+            return _data._bytes[index];
+        }
+
+        bool IsEmpty()             const { return _data._guid == 0; }
+        bool IsCreature()          const { return GetHigh() == HIGHGUID_UNIT; }
+        bool IsPet()               const { return GetHigh() == HIGHGUID_PET; }
+        bool IsVehicle()           const { return GetHigh() == HIGHGUID_VEHICLE; }
+        bool IsCreatureOrPet()     const { return IsCreature() || IsPet(); }
+        bool IsCreatureOrVehicle() const { return IsCreature() || IsVehicle(); }
+        bool IsAnyTypeCreature()   const { return IsCreature() || IsPet() || IsVehicle(); }
+        bool IsPlayer()            const { return !IsEmpty() && GetHigh() == HIGHGUID_PLAYER; }
+        bool IsUnit()              const { return IsAnyTypeCreature() || IsPlayer(); }
+        bool IsItem()              const { return GetHigh() == HIGHGUID_ITEM; }
+        bool IsGameObject()        const { return GetHigh() == HIGHGUID_GAMEOBJECT; }
+        bool IsDynamicObject()     const { return GetHigh() == HIGHGUID_DYNAMICOBJECT; }
+        bool IsCorpse()            const { return GetHigh() == HIGHGUID_CORPSE; }
+        bool IsAreaTrigger()       const { return GetHigh() == HIGHGUID_AREATRIGGER; }
+        bool IsBattleground()      const { return GetHigh() == HIGHGUID_BATTLEGROUND; }
+        bool IsTransport()         const { return GetHigh() == HIGHGUID_TRANSPORT; }
+        bool IsMOTransport()       const { return GetHigh() == HIGHGUID_MO_TRANSPORT; }
+        bool IsAnyTypeGameObject() const { return IsGameObject() || IsTransport() || IsMOTransport(); }
+        bool IsInstance()          const { return GetHigh() == HIGHGUID_INSTANCE; }
+        bool IsGroup()             const { return GetHigh() == HIGHGUID_GROUP; }
+        bool IsGuild()             const { return GetHigh() == HIGHGUID_GUILD; }
+
+        static TypeID GetTypeId(HighGuid high)
+        {
+            switch (high)
+            {
+                case HIGHGUID_ITEM:         return TYPEID_ITEM;
+                //case HIGHGUID_CONTAINER:    return TYPEID_CONTAINER; HIGHGUID_CONTAINER==HIGHGUID_ITEM currently
+                case HIGHGUID_UNIT:         return TYPEID_UNIT;
+                case HIGHGUID_PET:          return TYPEID_UNIT;
+                case HIGHGUID_PLAYER:       return TYPEID_PLAYER;
+                case HIGHGUID_GAMEOBJECT:   return TYPEID_GAMEOBJECT;
+                case HIGHGUID_DYNAMICOBJECT: return TYPEID_DYNAMICOBJECT;
+                case HIGHGUID_CORPSE:       return TYPEID_CORPSE;
+                case HIGHGUID_AREATRIGGER:  return TYPEID_AREATRIGGER;
+                case HIGHGUID_MO_TRANSPORT: return TYPEID_GAMEOBJECT;
+                case HIGHGUID_VEHICLE:      return TYPEID_UNIT;
+                // unknown
+                case HIGHGUID_INSTANCE:
+                case HIGHGUID_BATTLEGROUND:
+                case HIGHGUID_GROUP:
+                case HIGHGUID_GUILD:
+                default:                    return TYPEID_OBJECT;
+            }
+        }
+
+        TypeID GetTypeId() const { return GetTypeId(GetHigh()); }
+
+        bool operator!() const { return IsEmpty(); }
+        bool operator== (ObjectGuid const& guid) const { return GetRawValue() == guid.GetRawValue(); }
+        bool operator!= (ObjectGuid const& guid) const { return GetRawValue() != guid.GetRawValue(); }
+        bool operator< (ObjectGuid const& guid) const { return GetRawValue() < guid.GetRawValue(); }
+
+        static char const* GetTypeName(HighGuid high);
+        char const* GetTypeName() const { return !IsEmpty() ? GetTypeName(GetHigh()) : "None"; }
+        std::string ToString() const;
+
+    private:
+        static bool HasEntry(HighGuid high)
+        {
+            switch (high)
+            {
+                case HIGHGUID_ITEM:
+                case HIGHGUID_PLAYER:
+                case HIGHGUID_DYNAMICOBJECT:
+                case HIGHGUID_CORPSE:
+                case HIGHGUID_MO_TRANSPORT:
+                case HIGHGUID_INSTANCE:
+                case HIGHGUID_GROUP:
+                    return false;
+                case HIGHGUID_GAMEOBJECT:
+                case HIGHGUID_TRANSPORT:
+                case HIGHGUID_UNIT:
+                case HIGHGUID_PET:
+                case HIGHGUID_VEHICLE:
+                default:
+                    return true;
+            }
+        }
+
+        bool HasEntry() const { return HasEntry(GetHigh()); }
+
+        explicit ObjectGuid(uint32 const&) = delete;                 // no implementation, used to catch wrong type assignment
+        ObjectGuid(HighGuid, uint32, uint64 counter) = delete;       // no implementation, used to catch wrong type assignment
+        ObjectGuid(HighGuid, uint64 counter) = delete;               // no implementation, used to catch wrong type assignment
+
+        union
+        {
+            uint64 _guid;
+            uint8 _bytes[sizeof(uint64)];
+        } _data;
+};
+
+// Some Shared defines
+typedef std::set<ObjectGuid> GuidSet;
+typedef std::list<ObjectGuid> GuidList;
+typedef std::deque<ObjectGuid> GuidDeque;
+typedef std::vector<ObjectGuid> GuidVector;
+
+// minimum buffer size for packed guid is 9 bytes
+#define PACKED_GUID_MIN_BUFFER_SIZE 9
+
+class PackedGuid
+{
+        friend ByteBuffer& operator<<(ByteBuffer& buf, PackedGuid const& guid);
+
+    public:
+        explicit PackedGuid() : _packedGuid(PACKED_GUID_MIN_BUFFER_SIZE) { _packedGuid.appendPackGUID(0); }
+        explicit PackedGuid(uint64 guid) : _packedGuid(PACKED_GUID_MIN_BUFFER_SIZE) { _packedGuid.appendPackGUID(guid); }
+        explicit PackedGuid(ObjectGuid guid) : _packedGuid(PACKED_GUID_MIN_BUFFER_SIZE) { _packedGuid.appendPackGUID(guid.GetRawValue()); }
+
+        void Set(uint64 guid) { _packedGuid.wpos(0); _packedGuid.appendPackGUID(guid); }
+        void Set(ObjectGuid guid) { _packedGuid.wpos(0); _packedGuid.appendPackGUID(guid.GetRawValue()); }
+
+        size_t size() const { return _packedGuid.size(); }
+
+    private:
+        ByteBuffer _packedGuid;
+};
+
+template<HighGuid high>
+class ObjectGuidGenerator
+{
+    public:
+        explicit ObjectGuidGenerator(uint32 start = 1) : _nextGuid(start) { }
+
+        void Set(uint32 val) { _nextGuid = val; }
+        uint32 Generate();
+        uint32 GetNextAfterMaxUsed() const { return _nextGuid; }
+
+    private:
+        uint32 _nextGuid;
+};
+
+ByteBuffer& operator<<(ByteBuffer& buf, ObjectGuid const& guid);
+ByteBuffer& operator>>(ByteBuffer& buf, ObjectGuid&       guid);
+
+ByteBuffer& operator<<(ByteBuffer& buf, PackedGuid const& guid);
+ByteBuffer& operator>>(ByteBuffer& buf, PackedGuidReader const& guid);
+
+inline PackedGuid ObjectGuid::WriteAsPacked() const { return PackedGuid(*this); }
+
+namespace std
+{
+    template<>
+    struct hash<ObjectGuid>
+    {
+        public:
+            size_t operator()(ObjectGuid const& key) const
+            {
+                return hash<uint64>()(key.GetRawValue());
+            }
+    };
+}
+
+#endif // ObjectGuid_h__
diff --git a/src/server/game/Entities/Object/Updates/UpdateData.cpp b/src/server/game/Entities/Object/Updates/UpdateData.cpp
index ee84b01e175..eaecbdac3c1 100644
--- a/src/server/game/Entities/Object/Updates/UpdateData.cpp
+++ b/src/server/game/Entities/Object/Updates/UpdateData.cpp
@@ -27,12 +27,12 @@
 
 UpdateData::UpdateData(uint16 map) : m_map(map), m_blockCount(0) { }
 
-void UpdateData::AddOutOfRangeGUID(std::set<uint64>& guids)
+void UpdateData::AddOutOfRangeGUID(GuidSet& guids)
 {
     m_outOfRangeGUIDs.insert(guids.begin(), guids.end());
 }
 
-void UpdateData::AddOutOfRangeGUID(uint64 guid)
+void UpdateData::AddOutOfRangeGUID(ObjectGuid guid)
 {
     m_outOfRangeGUIDs.insert(guid);
 }
@@ -56,8 +56,8 @@ bool UpdateData::BuildPacket(WorldPacket* packet)
         *packet << uint8(UPDATETYPE_OUT_OF_RANGE_OBJECTS);
         *packet << uint32(m_outOfRangeGUIDs.size());
 
-        for (std::set<uint64>::const_iterator i = m_outOfRangeGUIDs.begin(); i != m_outOfRangeGUIDs.end(); ++i)
-            packet->appendPackGUID(*i);
+        for (GuidSet::const_iterator i = m_outOfRangeGUIDs.begin(); i != m_outOfRangeGUIDs.end(); ++i)
+            *packet << i->WriteAsPacked();
     }
 
     packet->append(m_data);
diff --git a/src/server/game/Entities/Object/Updates/UpdateData.h b/src/server/game/Entities/Object/Updates/UpdateData.h
index e0666a1a717..82958229ea0 100644
--- a/src/server/game/Entities/Object/Updates/UpdateData.h
+++ b/src/server/game/Entities/Object/Updates/UpdateData.h
@@ -20,6 +20,7 @@
 #define __UPDATEDATA_H
 
 #include "ByteBuffer.h"
+#include "ObjectGuid.h"
 #include <set>
 
 class WorldPacket;
@@ -61,19 +62,19 @@ class UpdateData
         {
         }
 
-        void AddOutOfRangeGUID(std::set<uint64>& guids);
-        void AddOutOfRangeGUID(uint64 guid);
+        void AddOutOfRangeGUID(GuidSet& guids);
+        void AddOutOfRangeGUID(ObjectGuid guid);
         void AddUpdateBlock(const ByteBuffer &block);
         bool BuildPacket(WorldPacket* packet);
         bool HasData() const { return m_blockCount > 0 || !m_outOfRangeGUIDs.empty(); }
         void Clear();
 
-        std::set<uint64> const& GetOutOfRangeGUIDs() const { return m_outOfRangeGUIDs; }
+        GuidSet const& GetOutOfRangeGUIDs() const { return m_outOfRangeGUIDs; }
 
     protected:
         uint16 m_map;
         uint32 m_blockCount;
-        std::set<uint64> m_outOfRangeGUIDs;
+        GuidSet m_outOfRangeGUIDs;
         ByteBuffer m_data;
 
         UpdateData(UpdateData const& right) = delete;
diff --git a/src/server/game/Entities/Pet/Pet.cpp b/src/server/game/Entities/Pet/Pet.cpp
index 46c9e61886a..28ff634a15c 100644
--- a/src/server/game/Entities/Pet/Pet.cpp
+++ b/src/server/game/Entities/Pet/Pet.cpp
@@ -302,8 +302,8 @@ bool Pet::LoadPetFromDB(Player* owner, uint32 petEntry, uint32 petnumber, bool c
     if (summonSpellId)
     {
         WorldPacket data(SMSG_SPELL_GO, (8+8+4+4+2));
-        data.append(owner->GetPackGUID());
-        data.append(owner->GetPackGUID());
+        data << owner->GetPackGUID();
+        data << owner->GetPackGUID();
         data << uint8(0);
         data << uint32(summonSpellId);
         data << uint32(256); // CAST_FLAG_UNKNOWN3
@@ -381,7 +381,7 @@ void Pet::SavePetToDB(PetSaveMode mode)
         return;
 
     // not save not player pets
-    if (!IS_PLAYER_GUID(GetOwnerGUID()))
+    if (!GetOwnerGUID().IsPlayer())
         return;
 
     Player* owner = GetOwner();
@@ -416,7 +416,7 @@ void Pet::SavePetToDB(PetSaveMode mode)
     // current/stable/not_in_slot
     if (mode >= PET_SAVE_AS_CURRENT)
     {
-        uint32 ownerLowGUID = GUID_LOPART(GetOwnerGUID());
+        uint32 ownerLowGUID = GetOwnerGUID().GetCounter();
         std::string name = m_name;
         CharacterDatabase.EscapeString(name);
         trans = CharacterDatabase.BeginTransaction();
@@ -1225,7 +1225,7 @@ void Pet::_LoadAuras(uint32 timediff)
             int32 damage[3];
             int32 baseDamage[3];
             Field* fields = result->Fetch();
-            uint64 caster_guid = fields[0].GetUInt64();
+            ObjectGuid caster_guid(fields[0].GetUInt64());
             // NULL guid stored - pet is the caster of the spell - see Pet::_SaveAuras
             if (!caster_guid)
                 caster_guid = GetGUID();
@@ -1320,13 +1320,13 @@ void Pet::_SaveAuras(SQLTransaction& trans)
         }
 
         // don't save guid of caster in case we are caster of the spell - guid for pet is generated every pet load, so it won't match saved guid anyways
-        uint64 casterGUID = (itr->second->GetCasterGUID() == GetGUID()) ? 0 : itr->second->GetCasterGUID();
+        ObjectGuid casterGUID = (itr->second->GetCasterGUID() == GetGUID()) ? ObjectGuid::Empty : itr->second->GetCasterGUID();
 
         uint8 index = 0;
 
         stmt = CharacterDatabase.GetPreparedStatement(CHAR_INS_PET_AURA);
         stmt->setUInt32(index++, m_charmInfo->GetPetNumber());
-        stmt->setUInt64(index++, casterGUID);
+        stmt->setUInt64(index++, casterGUID.GetRawValue());
         stmt->setUInt32(index++, itr->second->GetId());
         stmt->setUInt8(index++, effMask);
         stmt->setUInt8(index++, recalculateMask);
diff --git a/src/server/game/Entities/Pet/Pet.h b/src/server/game/Entities/Pet/Pet.h
index 15383d90bf3..8c3cf5e0ecc 100644
--- a/src/server/game/Entities/Pet/Pet.h
+++ b/src/server/game/Entities/Pet/Pet.h
@@ -60,7 +60,7 @@ class Pet : public Guardian
         bool CreateBaseAtCreatureInfo(CreatureTemplate const* cinfo, Unit* owner);
         bool CreateBaseAtTamed(CreatureTemplate const* cinfo, Map* map, uint32 phaseMask);
         bool LoadPetFromDB(Player* owner, uint32 petentry = 0, uint32 petnumber = 0, bool current = false);
-        bool isBeingLoaded() const override { return m_loading;}
+        bool IsLoading() const override { return m_loading;}
         void SavePetToDB(PetSaveMode mode);
         void Remove(PetSaveMode mode, bool returnreagent = false);
         static void DeleteFromDB(uint32 guidlow);
diff --git a/src/server/game/Entities/Player/Player.cpp b/src/server/game/Entities/Player/Player.cpp
index 608f7a72859..e3101c20a15 100644
--- a/src/server/game/Entities/Player/Player.cpp
+++ b/src/server/game/Entities/Player/Player.cpp
@@ -307,7 +307,7 @@ Item* TradeData::GetItem(TradeSlots slot) const
     return m_items[slot] ? m_player->GetItemByGuid(m_items[slot]) : NULL;
 }
 
-bool TradeData::HasItem(uint64 itemGuid) const
+bool TradeData::HasItem(ObjectGuid itemGuid) const
 {
     for (uint8 i = 0; i < TRADE_SLOT_COUNT; ++i)
         if (m_items[i] == itemGuid)
@@ -316,7 +316,7 @@ bool TradeData::HasItem(uint64 itemGuid) const
     return false;
 }
 
-TradeSlots TradeData::GetTradeSlotForItem(uint64 itemGuid) const
+TradeSlots TradeData::GetTradeSlotForItem(ObjectGuid itemGuid) const
 {
     for (uint8 i = 0; i < TRADE_SLOT_COUNT; ++i)
         if (m_items[i] == itemGuid)
@@ -332,7 +332,9 @@ Item* TradeData::GetSpellCastItem() const
 
 void TradeData::SetItem(TradeSlots slot, Item* item)
 {
-    uint64 itemGuid = item ? item->GetGUID() : 0;
+    ObjectGuid itemGuid;
+    if (item)
+        itemGuid = item->GetGUID();
 
     if (m_items[slot] == itemGuid)
         return;
@@ -354,7 +356,7 @@ void TradeData::SetItem(TradeSlots slot, Item* item)
 
 void TradeData::SetSpell(uint32 spell_id, Item* castItem /*= NULL*/)
 {
-    uint64 itemGuid = castItem ? castItem->GetGUID() : 0;
+    ObjectGuid itemGuid = castItem ? castItem->GetGUID() : ObjectGuid::Empty;
 
     if (m_spell == spell_id && m_spellCastItem == itemGuid)
         return;
@@ -465,7 +467,7 @@ KillRewarder::KillRewarder(Player* killer, Unit* victim, bool isBattleGround) :
     if (victim->GetTypeId() == TYPEID_PLAYER)
         _isPvP = true;
     // or if its owned by player and its not a vehicle
-    else if (IS_PLAYER_GUID(victim->GetCharmerOrOwnerGUID()))
+    else if (victim->GetCharmerOrOwnerGUID().IsPlayer())
         _isPvP = !victim->IsVehicle();
 
     _InitGroupData();
@@ -686,7 +688,6 @@ Player::Player(WorldSession* session): Unit(true)
 
     m_session = session;
 
-    m_divider = 0;
     m_ingametime = 0;
 
     m_ExtraFlags = 0;
@@ -698,9 +699,6 @@ Player::Player(WorldSession* session): Unit(true)
     if (!GetSession()->HasPermission(rbac::RBAC_PERM_CAN_FILTER_WHISPERS))
         SetAcceptWhispers(true);
 
-    m_lootGuid = 0;
-
-    m_comboTarget = 0;
     m_comboPoints = 0;
 
     m_regenTimer = 0;
@@ -793,13 +791,13 @@ Player::Player(WorldSession* session): Unit(true)
     m_lastpetnumber = 0;
 
     ////////////////////Rest System/////////////////////
-    time_inn_enter=0;
-    inn_pos_mapid=0;
-    inn_pos_x=0;
-    inn_pos_y=0;
-    inn_pos_z=0;
-    m_rest_bonus=0;
-    rest_type=REST_TYPE_NO;
+    time_inn_enter = 0;
+    inn_pos_mapid = 0;
+    inn_pos_x = 0.0f;
+    inn_pos_y = 0.0f;
+    inn_pos_z = 0.0f;
+    m_rest_bonus = 0;
+    rest_type = REST_TYPE_NO;
     ////////////////////Rest System/////////////////////
 
     m_mailsLoaded = false;
@@ -1937,7 +1935,7 @@ bool Player::BuildEnumData(PreparedQueryResult result, ByteBuffer* dataBuffer, B
 
     Field* fields = result->Fetch();
 
-    ObjectGuid guid = MAKE_NEW_GUID(fields[0].GetUInt32(), 0, HIGHGUID_PLAYER);
+    ObjectGuid guid(HIGHGUID_PLAYER, fields[0].GetUInt32());
     std::string name = fields[1].GetString();
     uint8 plrRace = fields[2].GetUInt8();
     uint8 plrClass = fields[3].GetUInt8();
@@ -1954,7 +1952,9 @@ bool Player::BuildEnumData(PreparedQueryResult result, ByteBuffer* dataBuffer, B
     float y = fields[11].GetFloat();
     float z = fields[12].GetFloat();
     uint32 guildId = fields[13].GetUInt32();
-    ObjectGuid guildGuid = MAKE_NEW_GUID(guildId, 0, guildId ? uint32(HIGHGUID_GUILD) : 0);
+    ObjectGuid guildGuid;
+    if (guildId)
+        guildGuid = ObjectGuid(HIGHGUID_GUILD, guildId);
     uint32 playerFlags = fields[14].GetUInt32();
     uint32 atLoginFlags = fields[15].GetUInt16();
     Tokenizer equipment(fields[19].GetString(), ' ');
@@ -2187,7 +2187,7 @@ bool Player::TeleportTo(uint32 mapid, float x, float y, float z, float orientati
     // The player was ported to another map and loses the duel immediately.
     // We have to perform this check before the teleport, otherwise the
     // ObjectAccessor won't find the flag.
-    if (duel && GetMapId() != mapid && GetMap()->GetGameObject(GetUInt64Value(PLAYER_DUEL_ARBITER)))
+    if (duel && GetMapId() != mapid && GetMap()->GetGameObject(GetGuidValue(PLAYER_DUEL_ARBITER)))
         DuelComplete(DUEL_FLED);
 
     if (GetMapId() == mapid)
@@ -2269,7 +2269,7 @@ bool Player::TeleportTo(uint32 mapid, float x, float y, float z, float orientati
                 return true;
             }
 
-            SetSelection(0);
+            SetSelection(ObjectGuid::Empty);
 
             CombatStop();
 
@@ -2786,7 +2786,7 @@ bool Player::CanInteractWithQuestGiver(Object* questGiver)
     return false;
 }
 
-Creature* Player::GetNPCIfCanInteractWith(uint64 guid, uint32 npcflagmask)
+Creature* Player::GetNPCIfCanInteractWith(ObjectGuid guid, uint32 npcflagmask)
 {
     // unit checks
     if (!guid)
@@ -2837,7 +2837,7 @@ Creature* Player::GetNPCIfCanInteractWith(uint64 guid, uint32 npcflagmask)
     return creature;
 }
 
-GameObject* Player::GetGameObjectIfCanInteractWith(uint64 guid, GameobjectTypes type) const
+GameObject* Player::GetGameObjectIfCanInteractWith(ObjectGuid guid, GameobjectTypes type) const
 {
     if (GameObject* go = GetMap()->GetGameObject(guid))
     {
@@ -2992,7 +2992,7 @@ void Player::UninviteFromGroup()
     }
 }
 
-void Player::RemoveFromGroup(Group* group, uint64 guid, RemoveMethod method /* = GROUP_REMOVEMETHOD_DEFAULT*/, uint64 kicker /* = 0 */, const char* reason /* = NULL */)
+void Player::RemoveFromGroup(Group* group, ObjectGuid guid, RemoveMethod method /* = GROUP_REMOVEMETHOD_DEFAULT*/, ObjectGuid kicker /* = ObjectGuid::Empty */, const char* reason /* = NULL */)
 {
     if (!group)
         return;
@@ -3003,7 +3003,7 @@ void Player::RemoveFromGroup(Group* group, uint64 guid, RemoveMethod method /* =
 void Player::SendLogXPGain(uint32 GivenXP, Unit* victim, uint32 BonusXP, bool recruitAFriend, float /*group_rate*/)
 {
     WorldPacket data(SMSG_LOG_XPGAIN, 21); // guess size?
-    data << uint64(victim ? victim->GetGUID() : 0);         // guid
+    data << uint64(victim ? victim->GetGUID() : ObjectGuid::Empty);
     data << uint32(GivenXP + BonusXP);                      // given experience
     data << uint8(victim ? 0 : 1);                          // 00-kill_xp type, 01-non_kill_xp type
 
@@ -4639,19 +4639,19 @@ TrainerSpellState Player::GetTrainerSpellState(TrainerSpell const* trainer_spell
  * @param updateRealmChars when this flag is set, the amount of characters on that realm will be updated in the realmlist
  * @param deleteFinally    if this flag is set, the config option will be ignored and the character will be permanently removed from the database
  */
-void Player::DeleteFromDB(uint64 playerguid, uint32 accountId, bool updateRealmChars, bool deleteFinally)
+void Player::DeleteFromDB(ObjectGuid playerguid, uint32 accountId, bool updateRealmChars, bool deleteFinally)
 {
     // Avoid realm-update for non-existing account
     if (accountId == 0)
         updateRealmChars = false;
 
     // Convert guid to low GUID for CharacterNameData, but also other methods on success
-    uint32 guid = GUID_LOPART(playerguid);
+    uint32 guid = playerguid.GetCounter();
     uint32 charDelete_method = sWorld->getIntConfig(CONFIG_CHARDELETE_METHOD);
 
     if (deleteFinally)
         charDelete_method = CHAR_DELETE_REMOVE;
-    else if (CharacterNameData const* nameData = sWorld->GetCharacterNameData(guid))    // To avoid a query, we select loaded data. If it doesn't exist, return.
+    else if (CharacterNameData const* nameData = sWorld->GetCharacterNameData(playerguid))    // To avoid a query, we select loaded data. If it doesn't exist, return.
     {
         // Define the required variables
         uint32 charDelete_minLvl = sWorld->getIntConfig(nameData->m_class != CLASS_DEATH_KNIGHT ? CONFIG_CHARDELETE_MIN_LEVEL : CONFIG_CHARDELETE_HEROIC_MIN_LEVEL);
@@ -4668,7 +4668,7 @@ void Player::DeleteFromDB(uint64 playerguid, uint32 accountId, bool updateRealmC
 
     if (uint32 guildId = GetGuildIdFromDB(playerguid))
         if (Guild* guild = sGuildMgr->GetGuildById(guildId))
-            guild->DeleteMember(guid, false, false, true);
+            guild->DeleteMember(playerguid, false, false, true);
 
     // remove from arena teams
     LeaveAllArenaTeams(playerguid);
@@ -4757,7 +4757,7 @@ void Player::DeleteFromDB(uint64 playerguid, uint32 accountId, bool updateRealmC
                                 }
 
                                 Item* pItem = NewItemOrBag(itemProto);
-                                if (!pItem->LoadFromDB(item_guidlow, MAKE_NEW_GUID(guid, 0, HIGHGUID_PLAYER), itemFields, item_template))
+                                if (!pItem->LoadFromDB(item_guidlow, playerguid, itemFields, item_template))
                                 {
                                     pItem->FSetState(ITEM_REMOVED);
                                     pItem->SaveToDB(trans);              // it also deletes item object!
@@ -4774,7 +4774,7 @@ void Player::DeleteFromDB(uint64 playerguid, uint32 accountId, bool updateRealmC
                     stmt->setUInt32(0, mail_id);
                     trans->Append(stmt);
 
-                    uint32 pl_account = sObjectMgr->GetPlayerAccountIdByGUID(MAKE_NEW_GUID(guid, 0, HIGHGUID_PLAYER));
+                    uint32 pl_account = sObjectMgr->GetPlayerAccountIdByGUID(playerguid);
 
                     draft.AddMoney(money).SendReturnToSender(pl_account, guid, sender, trans);
                 }
@@ -4805,7 +4805,7 @@ void Player::DeleteFromDB(uint64 playerguid, uint32 accountId, bool updateRealmC
             {
                 do
                 {
-                    if (Player* pFriend = ObjectAccessor::FindPlayer(MAKE_NEW_GUID((*resultFriends)[0].GetUInt32(), 0, HIGHGUID_PLAYER)))
+                    if (Player* pFriend = ObjectAccessor::FindPlayer(ObjectGuid(HIGHGUID_PLAYER, 0, (*resultFriends)[0].GetUInt32())))
                     {
                         if (pFriend->IsInWorld())
                         {
@@ -4978,7 +4978,7 @@ void Player::DeleteFromDB(uint64 playerguid, uint32 accountId, bool updateRealmC
     if (updateRealmChars)
         sWorld->UpdateRealmCharCount(accountId);
 
-    sWorld->DeleteCharacterNameData(guid);
+    sWorld->DeleteCharacterNameData(playerguid);
 }
 
 /**
@@ -5016,7 +5016,7 @@ void Player::DeleteOldCharacters(uint32 keepDays)
          do
          {
             Field* fields = result->Fetch();
-            Player::DeleteFromDB(fields[0].GetUInt32(), fields[1].GetUInt32(), true, true);
+            Player::DeleteFromDB(ObjectGuid(HIGHGUID_PLAYER, fields[0].GetUInt32()), fields[1].GetUInt32(), true, true);
          }
          while (result->NextRow());
     }
@@ -5029,7 +5029,7 @@ void Player::DeleteOldCharacters(uint32 keepDays)
 void Player::BuildPlayerRepop()
 {
     WorldPacket data(SMSG_PRE_RESURRECT, GetPackGUID().size());
-    data.append(GetPackGUID());
+    data << GetPackGUID();
     GetSession()->SendPacket(&data);
 
     if (getRace() == RACE_NIGHTELF)
@@ -5863,7 +5863,7 @@ void Player::ApplyRatingMod(CombatRating combatRating, int32 value, bool apply)
             ApplyAttackTimePercentMod(OFF_ATTACK, oldVal, false);
             ApplyAttackTimePercentMod(BASE_ATTACK, newVal, true);
             ApplyAttackTimePercentMod(OFF_ATTACK, newVal, true);
-                if (getClass() == CLASS_DEATH_KNIGHT)		
+                if (getClass() == CLASS_DEATH_KNIGHT)        
                     UpdateAllRunesRegen();
             break;
         case CR_HASTE_RANGED:
@@ -6556,13 +6556,13 @@ bool Player::IsActionButtonDataValid(uint8 button, uint32 action, uint8 type)
 {
     if (button >= MAX_ACTION_BUTTONS)
     {
-        TC_LOG_ERROR("entities.player", "Action %u not added into button %u for player %s (GUID: %u): button must be < %u", action, button, GetName().c_str(), GUID_LOPART(GetGUID()), MAX_ACTION_BUTTONS );
+        TC_LOG_ERROR("entities.player", "Action %u not added into button %u for player %s (GUID: %u): button must be < %u", action, button, GetName().c_str(), GetGUIDLow(), MAX_ACTION_BUTTONS );
         return false;
     }
 
     if (action >= MAX_ACTION_BUTTON_ACTION_VALUE)
     {
-        TC_LOG_ERROR("entities.player", "Action %u not added into button %u for player %s (GUID: %u): action must be < %u", action, button, GetName().c_str(), GUID_LOPART(GetGUID()), MAX_ACTION_BUTTON_ACTION_VALUE);
+        TC_LOG_ERROR("entities.player", "Action %u not added into button %u for player %s (GUID: %u): action must be < %u", action, button, GetName().c_str(), GetGUIDLow(), MAX_ACTION_BUTTON_ACTION_VALUE);
         return false;
     }
 
@@ -6571,20 +6571,20 @@ bool Player::IsActionButtonDataValid(uint8 button, uint32 action, uint8 type)
         case ACTION_BUTTON_SPELL:
             if (!sSpellMgr->GetSpellInfo(action))
             {
-                TC_LOG_ERROR("entities.player", "Spell action %u not added into button %u for player %s (GUID: %u): spell not exist", action, button, GetName().c_str(), GUID_LOPART(GetGUID()));
+                TC_LOG_ERROR("entities.player", "Spell action %u not added into button %u for player %s (GUID: %u): spell not exist", action, button, GetName().c_str(), GetGUIDLow());
                 return false;
             }
 
             if (!HasSpell(action))
             {
-                TC_LOG_ERROR("entities.player", "Spell action %u not added into button %u for player %s (GUID: %u): player don't known this spell", action, button, GetName().c_str(), GUID_LOPART(GetGUID()));
+                TC_LOG_ERROR("entities.player", "Spell action %u not added into button %u for player %s (GUID: %u): player don't known this spell", action, button, GetName().c_str(), GetGUIDLow());
                 return false;
             }
             break;
         case ACTION_BUTTON_ITEM:
             if (!sObjectMgr->GetItemTemplate(action))
             {
-                TC_LOG_ERROR("entities.player", "Item action %u not added into button %u for player %s (GUID: %u): item not exist", action, button, GetName().c_str(), GUID_LOPART(GetGUID()));
+                TC_LOG_ERROR("entities.player", "Item action %u not added into button %u for player %s (GUID: %u): item not exist", action, button, GetName().c_str(), GetGUIDLow());
                 return false;
             }
             break;
@@ -7057,7 +7057,7 @@ bool Player::RewardHonor(Unit* victim, uint32 groupsize, int32 honor, bool pvpto
     if (HasAura(SPELL_AURA_PLAYER_INACTIVE))
         return false;
 
-    uint64 victim_guid = 0;
+    ObjectGuid victim_guid;
     uint32 victim_rank = 0;
 
     // need call before fields update to have chance move yesterday data to appropriate fields before today data change.
@@ -7102,13 +7102,13 @@ bool Player::RewardHonor(Unit* victim, uint32 groupsize, int32 honor, bool pvpto
             //  title[15..28] -> rank[5..18]
             //  title[other]  -> 0
             if (victim_title == 0)
-                victim_guid = 0;                        // Don't show HK: <rank> message, only log.
+                victim_guid.Clear();                     // Don't show HK: <rank> message, only log.
             else if (victim_title < 15)
                 victim_rank = victim_title + 4;
             else if (victim_title < 29)
                 victim_rank = victim_title - 14 + 4;
             else
-                victim_guid = 0;                        // Don't show HK: <rank> message, only log.
+                victim_guid.Clear();                     // Don't show HK: <rank> message, only log.
 
             honor_f = std::ceil(Trinity::Honor::hk_honor_at_level_f(k_level) * (v_level - k_grey) / (k_level - k_grey));
 
@@ -7591,28 +7591,28 @@ void Player::UpdateConquestCurrencyCap(uint32 currency)
 void Player::SetInGuild(uint32 guildId)
 {
     if (guildId)
-        SetUInt64Value(OBJECT_FIELD_DATA, MAKE_NEW_GUID(guildId, 0, HIGHGUID_GUILD));
+        SetGuidValue(OBJECT_FIELD_DATA, ObjectGuid(HIGHGUID_GUILD, guildId));
     else
-        SetUInt64Value(OBJECT_FIELD_DATA, 0);
+        SetGuidValue(OBJECT_FIELD_DATA, ObjectGuid::Empty);
 
     ApplyModFlag(PLAYER_FLAGS, PLAYER_FLAGS_GUILD_LEVEL_ENABLED, guildId != 0 && sWorld->getBoolConfig(CONFIG_GUILD_LEVELING_ENABLED));
     SetUInt16Value(OBJECT_FIELD_TYPE, 1, guildId != 0);
 }
 
-uint32 Player::GetGuildIdFromDB(uint64 guid)
+uint32 Player::GetGuildIdFromDB(ObjectGuid guid)
 {
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_GUILD_MEMBER);
-    stmt->setUInt32(0, GUID_LOPART(guid));
+    stmt->setUInt32(0, guid.GetCounter());
     if (PreparedQueryResult result = CharacterDatabase.Query(stmt))
         return result->Fetch()[0].GetUInt32();
 
     return 0;
 }
 
-uint8 Player::GetRankFromDB(uint64 guid)
+uint8 Player::GetRankFromDB(ObjectGuid guid)
 {
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_GUILD_MEMBER);
-    stmt->setUInt32(0, GUID_LOPART(guid));
+    stmt->setUInt32(0, guid.GetCounter());
     if (PreparedQueryResult result = CharacterDatabase.Query(stmt))
         return result->Fetch()[1].GetUInt8();
 
@@ -7635,10 +7635,10 @@ void Player::SetInArenaTeam(uint32 ArenaTeamId, uint8 slot, uint8 type)
     SetArenaTeamInfoField(slot, ARENA_TEAM_TYPE, type);
 }
 
-uint32 Player::GetArenaTeamIdFromDB(uint64 guid, uint8 type)
+uint32 Player::GetArenaTeamIdFromDB(ObjectGuid guid, uint8 type)
 {
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_ARENA_TEAM_ID_BY_PLAYER_GUID);
-    stmt->setUInt32(0, GUID_LOPART(guid));
+    stmt->setUInt32(0, guid.GetCounter());
     stmt->setUInt8(1, type);
     PreparedQueryResult result = CharacterDatabase.Query(stmt);
 
@@ -7649,9 +7649,9 @@ uint32 Player::GetArenaTeamIdFromDB(uint64 guid, uint8 type)
     return id;
 }
 
-uint32 Player::GetZoneIdFromDB(uint64 guid)
+uint32 Player::GetZoneIdFromDB(ObjectGuid guid)
 {
-    uint32 guidLow = GUID_LOPART(guid);
+    uint32 guidLow = guid.GetCounter();
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_CHAR_ZONE);
     stmt->setUInt32(0, guidLow);
     PreparedQueryResult result = CharacterDatabase.Query(stmt);
@@ -7695,10 +7695,10 @@ uint32 Player::GetZoneIdFromDB(uint64 guid)
     return zone;
 }
 
-uint32 Player::GetLevelFromDB(uint64 guid)
+uint32 Player::GetLevelFromDB(ObjectGuid guid)
 {
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_CHAR_LEVEL);
-    stmt->setUInt32(0, GUID_LOPART(guid));
+    stmt->setUInt32(0, guid.GetCounter());
     PreparedQueryResult result = CharacterDatabase.Query(stmt);
 
     if (!result)
@@ -7862,7 +7862,7 @@ void Player::CheckDuelDistance(time_t currTime)
     if (!duel)
         return;
 
-    uint64 duelFlagGUID = GetUInt64Value(PLAYER_DUEL_ARBITER);
+    ObjectGuid duelFlagGUID = GetGuidValue(PLAYER_DUEL_ARBITER);
     GameObject* obj = GetMap()->GetGameObject(duelFlagGUID);
     if (!obj)
         return;
@@ -7962,7 +7962,7 @@ void Player::DuelComplete(DuelCompleteType type)
         duel->opponent->CastSpell(duel->opponent, 52852, true);
 
     //Remove Duel Flag object
-    GameObject* obj = GetMap()->GetGameObject(GetUInt64Value(PLAYER_DUEL_ARBITER));
+    GameObject* obj = GetMap()->GetGameObject(GetGuidValue(PLAYER_DUEL_ARBITER));
     if (obj)
         duel->initiator->RemoveGameObject(obj, true);
 
@@ -7999,9 +7999,9 @@ void Player::DuelComplete(DuelCompleteType type)
         duel->opponent->ClearComboPoints();
 
     //cleanups
-    SetUInt64Value(PLAYER_DUEL_ARBITER, 0);
+    SetGuidValue(PLAYER_DUEL_ARBITER, ObjectGuid::Empty);
     SetUInt32Value(PLAYER_DUEL_TEAM, 0);
-    duel->opponent->SetUInt64Value(PLAYER_DUEL_ARBITER, 0);
+    duel->opponent->SetGuidValue(PLAYER_DUEL_ARBITER, ObjectGuid::Empty);
     duel->opponent->SetUInt32Value(PLAYER_DUEL_TEAM, 0);
 
     delete duel->opponent->duel;
@@ -8910,23 +8910,23 @@ void Player::RemovedInsignia(Player* looterPlr)
     looterPlr->SendLoot(bones->GetGUID(), LOOT_INSIGNIA);
 }
 
-void Player::SendLootRelease(uint64 guid)
+void Player::SendLootRelease(ObjectGuid guid)
 {
     WorldPacket data(SMSG_LOOT_RELEASE_RESPONSE, (8+1));
     data << uint64(guid) << uint8(1);
     SendDirectMessage(&data);
 }
 
-void Player::SendLoot(uint64 guid, LootType loot_type)
+void Player::SendLoot(ObjectGuid guid, LootType loot_type)
 {
-    if (uint64 lguid = GetLootGUID())
+    if (ObjectGuid lguid = GetLootGUID())
         m_session->DoLootRelease(lguid);
 
     Loot* loot = 0;
     PermissionTypes permission = ALL_PERMISSION;
 
     TC_LOG_DEBUG("loot", "Player::SendLoot");
-    if (IS_GAMEOBJECT_GUID(guid))
+    if (guid.IsGameObject())
     {
         TC_LOG_DEBUG("loot", "IS_GAMEOBJECT_GUID(guid)");
         GameObject* go = GetMap()->GetGameObject(guid);
@@ -9023,7 +9023,7 @@ void Player::SendLoot(uint64 guid, LootType loot_type)
                 permission = ALL_PERMISSION;
         }
     }
-    else if (IS_ITEM_GUID(guid))
+    else if (guid.IsItem())
     {
         Item* item = GetItemByGuid(guid);
 
@@ -9068,7 +9068,7 @@ void Player::SendLoot(uint64 guid, LootType loot_type)
             }
         }
     }
-    else if (IS_CORPSE_GUID(guid))                          // remove insignia
+    else if (guid.IsCorpse())                          // remove insignia
     {
         Corpse* bones = ObjectAccessor::GetCorpse(*this, guid);
 
@@ -9248,11 +9248,11 @@ void Player::SendLoot(uint64 guid, LootType loot_type)
     else
         SendLootError(GetLootGUID(), LOOT_ERROR_DIDNT_KILL);
 
-    if (loot_type == LOOT_CORPSE && !IS_ITEM_GUID(guid))
+    if (loot_type == LOOT_CORPSE && !guid.IsItem())
         SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_LOOTING);
 }
 
-void Player::SendLootError(uint64 guid, LootError error)
+void Player::SendLootError(ObjectGuid guid, LootError error)
 {
     WorldPacket data(SMSG_LOOT_RESPONSE, 10);
     data << uint64(guid);
@@ -9936,14 +9936,14 @@ uint32 Player::GetXPRestBonus(uint32 xp)
     return rested_bonus;
 }
 
-void Player::SetBindPoint(uint64 guid)
+void Player::SetBindPoint(ObjectGuid guid)
 {
     WorldPacket data(SMSG_BINDER_CONFIRM, 8);
     data << uint64(guid);
     GetSession()->SendPacket(&data);
 }
 
-void Player::SendTalentWipeConfirm(uint64 guid)
+void Player::SendTalentWipeConfirm(ObjectGuid guid)
 {
     WorldPacket data(MSG_TALENT_WIPE_CONFIRM, 8 + 4);
     data << uint64(guid);
@@ -10294,7 +10294,7 @@ uint32 Player::GetItemCountWithLimitCategory(uint32 limitCategory, Item* skipIte
     return count;
 }
 
-Item* Player::GetItemByGuid(uint64 guid) const
+Item* Player::GetItemByGuid(ObjectGuid guid) const
 {
     for (uint8 i = EQUIPMENT_SLOT_START; i < INVENTORY_SLOT_ITEM_END; ++i)
         if (Item* pItem = GetItemByPos(INVENTORY_SLOT_BAG_0, i))
@@ -12043,9 +12043,9 @@ Item* Player::_StoreItem(uint16 pos, Item* pItem, uint32 count, bool clone, bool
         if (!pBag)
         {
             m_items[slot] = pItem;
-            SetUInt64Value(PLAYER_FIELD_INV_SLOT_HEAD + (slot * 2), pItem->GetGUID());
-            pItem->SetUInt64Value(ITEM_FIELD_CONTAINED, GetGUID());
-            pItem->SetUInt64Value(ITEM_FIELD_OWNER, GetGUID());
+            SetGuidValue(PLAYER_FIELD_INV_SLOT_HEAD + (slot * 2), pItem->GetGUID());
+            pItem->SetGuidValue(ITEM_FIELD_CONTAINED, GetGUID());
+            pItem->SetGuidValue(ITEM_FIELD_OWNER, GetGUID());
 
             pItem->SetSlot(slot);
             pItem->SetContainer(NULL);
@@ -12286,9 +12286,9 @@ void Player::VisualizeItem(uint8 slot, Item* pItem)
     TC_LOG_DEBUG("entities.player.items", "STORAGE: EquipItem slot = %u, item = %u", slot, pItem->GetEntry());
 
     m_items[slot] = pItem;
-    SetUInt64Value(PLAYER_FIELD_INV_SLOT_HEAD + (slot * 2), pItem->GetGUID());
-    pItem->SetUInt64Value(ITEM_FIELD_CONTAINED, GetGUID());
-    pItem->SetUInt64Value(ITEM_FIELD_OWNER, GetGUID());
+    SetGuidValue(PLAYER_FIELD_INV_SLOT_HEAD + (slot * 2), pItem->GetGUID());
+    pItem->SetGuidValue(ITEM_FIELD_CONTAINED, GetGUID());
+    pItem->SetGuidValue(ITEM_FIELD_OWNER, GetGUID());
     pItem->SetSlot(slot);
     pItem->SetContainer(NULL);
 
@@ -12368,7 +12368,7 @@ void Player::RemoveItem(uint8 bag, uint8 slot, bool update)
             }
 
             m_items[slot] = NULL;
-            SetUInt64Value(PLAYER_FIELD_INV_SLOT_HEAD + (slot * 2), 0);
+            SetGuidValue(PLAYER_FIELD_INV_SLOT_HEAD + (slot * 2), ObjectGuid::Empty);
 
             if (slot < EQUIPMENT_SLOT_END)
                 SetVisibleItemSlot(slot, NULL);
@@ -12376,7 +12376,7 @@ void Player::RemoveItem(uint8 bag, uint8 slot, bool update)
         else if (Bag* pBag = GetBagByPos(bag))
             pBag->RemoveItem(slot, update);
 
-        pItem->SetUInt64Value(ITEM_FIELD_CONTAINED, 0);
+        pItem->SetGuidValue(ITEM_FIELD_CONTAINED, ObjectGuid::Empty);
         // pItem->SetUInt64Value(ITEM_FIELD_OWNER, 0); not clear owner at remove (it will be set at store). This used in mail and auction code
         pItem->SetSlot(NULL_SLOT);
         if (IsInWorld() && update)
@@ -12465,7 +12465,7 @@ void Player::DestroyItem(uint8 bag, uint8 slot, bool update)
 
         if (bag == INVENTORY_SLOT_BAG_0)
         {
-            SetUInt64Value(PLAYER_FIELD_INV_SLOT_HEAD + (slot * 2), 0);
+            SetGuidValue(PLAYER_FIELD_INV_SLOT_HEAD + (slot * 2), ObjectGuid::Empty);
 
             // equipment and equipped bags can have applied bonuses
             if (slot < INVENTORY_SLOT_BAG_END)
@@ -12522,7 +12522,7 @@ void Player::DestroyItem(uint8 bag, uint8 slot, bool update)
         }
 
         //pItem->SetOwnerGUID(0);
-        pItem->SetUInt64Value(ITEM_FIELD_CONTAINED, 0);
+        pItem->SetGuidValue(ITEM_FIELD_CONTAINED, ObjectGuid::Empty);
         pItem->SetSlot(NULL_SLOT);
         pItem->SetState(ITEM_REMOVED, this);
     }
@@ -13288,7 +13288,7 @@ void Player::AddItemToBuyBackSlot(Item* pItem)
         uint32 etime = uint32(base - m_logintime + (30 * 3600));
         uint32 eslot = slot - BUYBACK_SLOT_START;
 
-        SetUInt64Value(PLAYER_FIELD_VENDORBUYBACK_SLOT_1 + (eslot * 2), pItem->GetGUID());
+        SetGuidValue(PLAYER_FIELD_VENDORBUYBACK_SLOT_1 + (eslot * 2), pItem->GetGUID());
         if (ItemTemplate const* proto = pItem->GetTemplate())
             SetUInt32Value(PLAYER_FIELD_BUYBACK_PRICE_1 + eslot, proto->SellPrice * pItem->GetCount());
         else
@@ -13325,7 +13325,7 @@ void Player::RemoveItemFromBuyBackSlot(uint32 slot, bool del)
         m_items[slot] = NULL;
 
         uint32 eslot = slot - BUYBACK_SLOT_START;
-        SetUInt64Value(PLAYER_FIELD_VENDORBUYBACK_SLOT_1 + (eslot * 2), 0);
+        SetGuidValue(PLAYER_FIELD_VENDORBUYBACK_SLOT_1 + (eslot * 2), ObjectGuid::Empty);
         SetUInt32Value(PLAYER_FIELD_BUYBACK_PRICE_1 + eslot, 0);
         SetUInt32Value(PLAYER_FIELD_BUYBACK_TIMESTAMP_1 + eslot, 0);
 
@@ -13343,8 +13343,8 @@ void Player::SendEquipError(InventoryResult msg, Item* pItem, Item* pItem2, uint
 
     if (msg != EQUIP_ERR_OK)
     {
-        data << uint64(pItem ? pItem->GetGUID() : 0);
-        data << uint64(pItem2 ? pItem2->GetGUID() : 0);
+        data << uint64(pItem ? pItem->GetGUID() : ObjectGuid::Empty);
+        data << uint64(pItem2 ? pItem2->GetGUID() : ObjectGuid::Empty);
         data << uint8(0);                                   // bag type subclass, used with EQUIP_ERR_EVENT_AUTOEQUIP_BIND_CONFIRM and EQUIP_ERR_ITEM_DOESNT_GO_INTO_BAG2
 
         switch (msg)
@@ -13382,17 +13382,17 @@ void Player::SendBuyError(BuyResult msg, Creature* creature, uint32 item, uint32
 {
     TC_LOG_DEBUG("network", "WORLD: Sent SMSG_BUY_FAILED");
     WorldPacket data(SMSG_BUY_FAILED, (8+4+4+1));
-    data << uint64(creature ? creature->GetGUID() : 0);
+    data << uint64(creature ? creature->GetGUID() : ObjectGuid::Empty);
     data << uint32(item);
     data << uint8(msg);
     GetSession()->SendPacket(&data);
 }
 
-void Player::SendSellError(SellResult msg, Creature* creature, uint64 guid)
+void Player::SendSellError(SellResult msg, Creature* creature, ObjectGuid guid)
 {
     TC_LOG_DEBUG("network", "WORLD: Sent SMSG_SELL_ITEM");
     WorldPacket data(SMSG_SELL_ITEM, (8+8+1));  // last check 4.3.4
-    data << uint64(creature ? creature->GetGUID() : 0);
+    data << uint64(creature ? creature->GetGUID() : ObjectGuid::Empty);
     data << uint64(guid);
     data << uint8(msg);
     GetSession()->SendPacket(&data);
@@ -14537,7 +14537,7 @@ void Player::OnGossipSelect(WorldObject* source, uint32 gossipListId, uint32 men
         return;
 
     uint32 gossipOptionId = item->OptionType;
-    uint64 guid = source->GetGUID();
+    ObjectGuid guid = source->GetGUID();
 
     if (source->GetTypeId() == TYPEID_GAMEOBJECT)
     {
@@ -14704,7 +14704,7 @@ uint32 Player::GetDefaultGossipMenuForSource(WorldObject* source)
 /***                    QUEST SYSTEM                   ***/
 /*********************************************************/
 
-void Player::PrepareQuestMenu(uint64 guid)
+void Player::PrepareQuestMenu(ObjectGuid guid)
 {
     QuestRelationBounds objectQR;
     QuestRelationBounds objectQIR;
@@ -14764,7 +14764,7 @@ void Player::PrepareQuestMenu(uint64 guid)
     }
 }
 
-void Player::SendPreparedQuest(uint64 guid)
+void Player::SendPreparedQuest(ObjectGuid guid)
 {
     QuestMenu& questMenu = PlayerTalkClass->GetQuestMenu();
     if (questMenu.Empty())
@@ -14820,7 +14820,7 @@ void Player::SendPreparedQuest(uint64 guid)
             {
                 qe._Delay = 0;                              //TEXTEMOTE_MESSAGE;              //zyg: player emote
                 qe._Emote = 0;                              //TEXTEMOTE_HELLO;                //zyg: NPC emote
-                title = "";
+                title.clear();
             }
             else
             {
@@ -14855,12 +14855,12 @@ bool Player::IsActiveQuest(uint32 quest_id) const
     return m_QuestStatus.find(quest_id) != m_QuestStatus.end();
 }
 
-Quest const* Player::GetNextQuest(uint64 guid, Quest const* quest)
+Quest const* Player::GetNextQuest(ObjectGuid guid, Quest const* quest)
 {
     QuestRelationBounds objectQR;
     uint32 nextQuestID = quest->GetNextQuestInChain();
 
-    switch (GUID_HIPART(guid))
+    switch (guid.GetHigh())
     {
         case HIGHGUID_PLAYER:
             ASSERT(quest->HasFlag(QUEST_FLAGS_AUTOCOMPLETE));
@@ -16465,7 +16465,7 @@ void Player::ItemRemovedQuestCheck(uint32 entry, uint32 count)
     UpdateForQuestWorldObjects();
 }
 
-void Player::KilledMonster(CreatureTemplate const* cInfo, uint64 guid)
+void Player::KilledMonster(CreatureTemplate const* cInfo, ObjectGuid guid)
 {
     ASSERT(cInfo);
 
@@ -16474,10 +16474,10 @@ void Player::KilledMonster(CreatureTemplate const* cInfo, uint64 guid)
 
     for (uint8 i = 0; i < MAX_KILL_CREDIT; ++i)
         if (cInfo->KillCredit[i])
-            KilledMonsterCredit(cInfo->KillCredit[i], 0);
+            KilledMonsterCredit(cInfo->KillCredit[i], ObjectGuid::Empty);
 }
 
-void Player::KilledMonsterCredit(uint32 entry, uint64 guid /*= 0*/)
+void Player::KilledMonsterCredit(uint32 entry, ObjectGuid guid /*= ObjectGuid::Empty*/)
 {
     uint16 addkillcount = 1;
     uint32 real_entry = entry;
@@ -16579,7 +16579,7 @@ void Player::KilledPlayerCredit()
     }
 }
 
-void Player::KillCreditGO(uint32 entry, uint64 guid)
+void Player::KillCreditGO(uint32 entry, ObjectGuid guid)
 {
     uint16 addCastCount = 1;
     for (uint8 i = 0; i < MAX_QUEST_LOG_SIZE; ++i)
@@ -16633,7 +16633,7 @@ void Player::KillCreditGO(uint32 entry, uint64 guid)
     }
 }
 
-void Player::TalkedToCreature(uint32 entry, uint64 guid)
+void Player::TalkedToCreature(uint32 entry, ObjectGuid guid)
 {
     uint16 addTalkCount = 1;
     for (uint8 i = 0; i < MAX_QUEST_LOG_SIZE; ++i)
@@ -16945,11 +16945,11 @@ void Player::SendPushToPartyResponse(Player* player, uint8 msg)
     }
 }
 
-void Player::SendQuestUpdateAddCreatureOrGo(Quest const* quest, uint64 guid, uint32 creatureOrGO_idx, uint16 old_count, uint16 add_count)
+void Player::SendQuestUpdateAddCreatureOrGo(Quest const* quest, ObjectGuid guid, uint32 creatureOrGO_idx, uint16 old_count, uint16 add_count)
 {
     ASSERT(old_count + add_count < 65536 && "mob/GO count store in 16 bits 2^16 = 65536 (0..65536)");
 
-    int32 entry = quest->RequiredNpcOrGo[ creatureOrGO_idx ];
+    int32 entry = quest->RequiredNpcOrGo[creatureOrGO_idx];
     if (entry < 0)
         // client expected gameobject template id in form (id|0x80000000)
         entry = (-entry) | 0x80000000;
@@ -16965,7 +16965,7 @@ void Player::SendQuestUpdateAddCreatureOrGo(Quest const* quest, uint64 guid, uin
 
     uint16 log_slot = FindQuestSlot(quest->GetQuestId());
     if (log_slot < MAX_QUEST_LOG_SIZE)
-        SetQuestSlotCounter(log_slot, creatureOrGO_idx, GetQuestSlotCounter(log_slot, creatureOrGO_idx)+add_count);
+        SetQuestSlotCounter(log_slot, creatureOrGO_idx, GetQuestSlotCounter(log_slot, creatureOrGO_idx) + add_count);
 }
 
 void Player::SendQuestUpdateAddPlayer(Quest const* quest, uint16 old_count, uint16 add_count)
@@ -17119,10 +17119,10 @@ void Player::_LoadBGData(PreparedQueryResult result)
     m_bgData.mountSpell   = fields[9].GetUInt32();
 }
 
-bool Player::LoadPositionFromDB(uint32& mapid, float& x, float& y, float& z, float& o, bool& in_flight, uint64 guid)
+bool Player::LoadPositionFromDB(uint32& mapid, float& x, float& y, float& z, float& o, bool& in_flight, ObjectGuid guid)
 {
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_CHAR_POSITION);
-    stmt->setUInt32(0, GUID_LOPART(guid));
+    stmt->setUInt32(0, guid.GetCounter());
     PreparedQueryResult result = CharacterDatabase.Query(stmt);
 
     if (!result)
@@ -17174,12 +17174,12 @@ float Player::GetFloatValueFromArray(Tokenizer const& data, uint16 index)
     return result;
 }
 
-bool Player::isBeingLoaded() const
+bool Player::IsLoading() const
 {
     return GetSession()->PlayerLoading();
 }
 
-bool Player::LoadFromDB(uint32 guid, SQLQueryHolder *holder)
+bool Player::LoadFromDB(ObjectGuid guid, SQLQueryHolder *holder)
 {
     ////                                                     0     1        2     3     4        5      6    7      8     9           10              11
     //QueryResult* result = CharacterDatabase.PQuery("SELECT guid, account, name, race, class, gender, level, xp, money, playerBytes, playerBytes2, playerFlags, "
@@ -17198,7 +17198,7 @@ bool Player::LoadFromDB(uint32 guid, SQLQueryHolder *holder)
     {
         std::string name = "<unknown>";
         sObjectMgr->GetPlayerNameByGUID(guid, name);
-        TC_LOG_ERROR("entities.player", "Player %s (GUID: %u) not found in table `characters`, can't load. ", name.c_str(), guid);
+        TC_LOG_ERROR("entities.player", "Player %s %s not found in table `characters`, can't load. ", name.c_str(), guid.ToString().c_str());
         return false;
     }
 
@@ -17210,17 +17210,17 @@ bool Player::LoadFromDB(uint32 guid, SQLQueryHolder *holder)
     // player should be able to load/delete character only with correct account!
     if (dbAccountId != GetSession()->GetAccountId())
     {
-        TC_LOG_ERROR("entities.player", "Player (GUID: %u) loading from wrong account (is: %u, should be: %u)", guid, GetSession()->GetAccountId(), dbAccountId);
+        TC_LOG_ERROR("entities.player", "Player %s loading from wrong account (is: %u, should be: %u)", guid.ToString().c_str(), GetSession()->GetAccountId(), dbAccountId);
         return false;
     }
 
     if (holder->GetPreparedResult(PLAYER_LOGIN_QUERY_LOAD_BANNED))
     {
-        TC_LOG_ERROR("entities.player", "Player (GUID: %u) is banned, can't load.", guid);
+        TC_LOG_ERROR("entities.player", "%s is banned, can't load.", guid.ToString().c_str());
         return false;
     }
 
-    Object::_Create(guid, 0, HIGHGUID_PLAYER);
+    Object::_Create(guid.GetCounter(), 0, HIGHGUID_PLAYER);
 
     m_name = fields[2].GetString();
 
@@ -17231,18 +17231,18 @@ bool Player::LoadFromDB(uint32 guid, SQLQueryHolder *holder)
     {
         PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_UPD_ADD_AT_LOGIN_FLAG);
         stmt->setUInt16(0, uint16(AT_LOGIN_RENAME));
-        stmt->setUInt32(1, guid);
+        stmt->setUInt32(1, guid.GetCounter());
         CharacterDatabase.Execute(stmt);
         return false;
     }
 
     // overwrite possible wrong/corrupted guid
-    SetUInt64Value(OBJECT_FIELD_GUID, MAKE_NEW_GUID(guid, 0, HIGHGUID_PLAYER));
+    SetGuidValue(OBJECT_FIELD_GUID, guid);
 
     uint8 gender = fields[5].GetUInt8();
     if (!IsValidGender(gender))
     {
-        TC_LOG_ERROR("entities.player", "Player (GUID: %u) has wrong gender (%u), can't be loaded.", guid, gender);
+        TC_LOG_ERROR("entities.player", "Player %s has wrong gender (%u), can't be loaded.", guid.ToString().c_str(), gender);
         return false;
     }
 
@@ -17257,7 +17257,7 @@ bool Player::LoadFromDB(uint32 guid, SQLQueryHolder *holder)
     PlayerInfo const* info = sObjectMgr->GetPlayerInfo(getRace(), getClass());
     if (!info)
     {
-        TC_LOG_ERROR("entities.player", "Player (GUID: %u) has wrong race/class (%u/%u), can't be loaded.", guid, getRace(), getClass());
+        TC_LOG_ERROR("entities.player", "Player %s has wrong race/class (%u/%u), can't be loaded.", guid.ToString().c_str(), getRace(), getClass());
         return false;
     }
 
@@ -17293,7 +17293,7 @@ bool Player::LoadFromDB(uint32 guid, SQLQueryHolder *holder)
     // cleanup inventory related item value fields (its will be filled correctly in _LoadInventory)
     for (uint8 slot = EQUIPMENT_SLOT_START; slot < EQUIPMENT_SLOT_END; ++slot)
     {
-        SetUInt64Value(PLAYER_FIELD_INV_SLOT_HEAD + (slot * 2), 0);
+        SetGuidValue(PLAYER_FIELD_INV_SLOT_HEAD + (slot * 2), ObjectGuid::Empty);
         SetVisibleItemSlot(slot, NULL);
 
         delete m_items[slot];
@@ -17367,7 +17367,8 @@ bool Player::LoadFromDB(uint32 guid, SQLQueryHolder *holder)
     MapEntry const* mapEntry = sMapStore.LookupEntry(mapId);
     if (!mapEntry || !IsPositionValid())
     {
-        TC_LOG_ERROR("entities.player", "Player (guidlow %d) have invalid coordinates (MapId: %u X: %f Y: %f Z: %f O: %f). Teleport to default race/class locations.", guid, mapId, GetPositionX(), GetPositionY(), GetPositionZ(), GetOrientation());
+        TC_LOG_ERROR("entities.player", "Player %s have invalid coordinates (MapId: %u X: %f Y: %f Z: %f O: %f). Teleport to default race/class locations.",
+            guid.ToString().c_str(), mapId, GetPositionX(), GetPositionY(), GetPositionZ(), GetOrientation());
         RelocateToHomebind();
     }
     // Player was saved in Arena or Bg
@@ -17407,7 +17408,8 @@ bool Player::LoadFromDB(uint32 guid, SQLQueryHolder *holder)
             //if (mapId == MAPID_INVALID) -- code kept for reference
             if (int16(mapId) == int16(-1)) // Battleground Entry Point not found (???)
             {
-                TC_LOG_ERROR("entities.player", "Player (guidlow %d) was in BG in database, but BG was not found, and entry point was invalid! Teleport to default race/class locations.", guid);
+                TC_LOG_ERROR("entities.player", "Player %s was in BG in database, but BG was not found, and entry point was invalid! Teleport to default race/class locations.",
+                    guid.ToString().c_str());
                 RelocateToHomebind();
             }
             else
@@ -17420,7 +17422,7 @@ bool Player::LoadFromDB(uint32 guid, SQLQueryHolder *holder)
     // currently we do not support transport in bg
     else if (transLowGUID)
     {
-        uint64 transGUID = MAKE_NEW_GUID(transLowGUID, 0, HIGHGUID_MO_TRANSPORT);
+        ObjectGuid transGUID(HIGHGUID_MO_TRANSPORT, transLowGUID);
 
         Transport* transport = NULL;
         if (GameObject* go = HashMapHolder<GameObject>::Find(transGUID))
@@ -17438,8 +17440,8 @@ bool Player::LoadFromDB(uint32 guid, SQLQueryHolder *holder)
                 std::fabs(m_movementInfo.transport.pos.GetPositionY()) > 250.0f ||
                 std::fabs(m_movementInfo.transport.pos.GetPositionZ()) > 250.0f)
             {
-                TC_LOG_ERROR("entities.player", "Player (guidlow %d) have invalid transport coordinates (X: %f Y: %f Z: %f O: %f). Teleport to bind location.",
-                    guid, x, y, z, o);
+                TC_LOG_ERROR("entities.player", "Player %s have invalid transport coordinates (X: %f Y: %f Z: %f O: %f). Teleport to bind location.",
+                    guid.ToString().c_str(), x, y, z, o);
 
                 m_movementInfo.transport.Reset();
 
@@ -17564,7 +17566,8 @@ bool Player::LoadFromDB(uint32 guid, SQLQueryHolder *holder)
         }
         else
         {
-            TC_LOG_ERROR("entities.player", "Player %s (guid: %d) Map: %u, X: %f, Y: %f, Z: %f, O: %f. Areatrigger not found.", m_name.c_str(), guid, mapId, GetPositionX(), GetPositionY(), GetPositionZ(), GetOrientation());
+            TC_LOG_ERROR("entities.player", "Player %s %s Map: %u, X: %f, Y: %f, Z: %f, O: %f. Areatrigger not found.",
+                m_name.c_str(), guid.ToString().c_str(), mapId, GetPositionX(), GetPositionY(), GetPositionZ(), GetOrientation());
             map = NULL;
         }
     }
@@ -17576,7 +17579,8 @@ bool Player::LoadFromDB(uint32 guid, SQLQueryHolder *holder)
         map = sMapMgr->CreateMap(mapId, this);
         if (!map)
         {
-            TC_LOG_ERROR("entities.player", "Player %s (guid: %d) Map: %u, X: %f, Y: %f, Z: %f, O: %f. Invalid default map coordinates or instance couldn't be created.", m_name.c_str(), guid, mapId, GetPositionX(), GetPositionY(), GetPositionZ(), GetOrientation());
+            TC_LOG_ERROR("entities.player", "Player %s %s Map: %u, X: %f, Y: %f, Z: %f, O: %f. Invalid default map coordinates or instance couldn't be created.",
+                m_name.c_str(), guid.ToString().c_str(), mapId, GetPositionX(), GetPositionY(), GetPositionZ(), GetOrientation());
             return false;
         }
     }
@@ -17641,16 +17645,16 @@ bool Player::LoadFromDB(uint32 guid, SQLQueryHolder *holder)
         m_deathExpireTime = now + MAX_DEATH_COUNT * DEATH_EXPIRE_STEP - 1;
 
     // clear channel spell data (if saved at channel spell casting)
-    SetUInt64Value(UNIT_FIELD_CHANNEL_OBJECT, 0);
+    SetChannelObjectGuid(ObjectGuid::Empty);
     SetUInt32Value(UNIT_CHANNEL_SPELL, 0);
 
     // clear charm/summon related fields
-    SetOwnerGUID(0);
-    SetUInt64Value(UNIT_FIELD_CHARMEDBY, 0);
-    SetUInt64Value(UNIT_FIELD_CHARM, 0);
-    SetUInt64Value(UNIT_FIELD_SUMMON, 0);
-    SetUInt64Value(PLAYER_FARSIGHT, 0);
-    SetCreatorGUID(0);
+    SetOwnerGUID(ObjectGuid::Empty);
+    SetGuidValue(UNIT_FIELD_CHARMEDBY, ObjectGuid::Empty);
+    SetGuidValue(UNIT_FIELD_CHARM, ObjectGuid::Empty);
+    SetGuidValue(UNIT_FIELD_SUMMON, ObjectGuid::Empty);
+    SetGuidValue(PLAYER_FARSIGHT, ObjectGuid::Empty);
+    SetCreatorGUID(ObjectGuid::Empty);
 
     RemoveFlag(UNIT_FIELD_FLAGS_2, UNIT_FLAG2_FORCE_MOVEMENT);
 
@@ -17662,7 +17666,7 @@ bool Player::LoadFromDB(uint32 guid, SQLQueryHolder *holder)
     ClearInCombat();
 
     // make sure the unit is considered not in duel for proper loading
-    SetUInt64Value(PLAYER_DUEL_ARBITER, 0);
+    SetGuidValue(PLAYER_DUEL_ARBITER, ObjectGuid::Empty);
     SetUInt32Value(PLAYER_DUEL_TEAM, 0);
 
     // reset stats before loading any modifiers
@@ -17950,7 +17954,7 @@ bool Player::isAllowedToLoot(const Creature* creature)
         case ROUND_ROBIN:
             // may only loot if the player is the loot roundrobin player
             // or if there are free/quest/conditional item for the player
-            if (loot->roundRobinPlayer == 0 || loot->roundRobinPlayer == GetGUID())
+            if (loot->roundRobinPlayer.IsEmpty() || loot->roundRobinPlayer == GetGUID())
                 return true;
 
             return loot->hasItemFor(this);
@@ -17959,7 +17963,7 @@ bool Player::isAllowedToLoot(const Creature* creature)
             // may only loot if the player is the loot roundrobin player
             // or item over threshold (so roll(s) can be launched)
             // or if there are free/quest/conditional item for the player
-            if (loot->roundRobinPlayer == 0 || loot->roundRobinPlayer == GetGUID())
+            if (loot->roundRobinPlayer.IsEmpty() || loot->roundRobinPlayer == GetGUID())
                 return true;
 
             if (loot->hasOverThresholdItem())
@@ -18014,7 +18018,7 @@ void Player::_LoadAuras(PreparedQueryResult result, uint32 timediff)
             Field* fields = result->Fetch();
             int32 damage[3];
             int32 baseDamage[3];
-            uint64 caster_guid = fields[0].GetUInt64();
+            ObjectGuid caster_guid(fields[0].GetUInt64());
             uint32 spellid = fields[1].GetUInt32();
             uint8 effmask = fields[2].GetUInt8();
             uint8 recalculatemask = fields[3].GetUInt8();
@@ -18261,7 +18265,7 @@ void Player::_LoadVoidStorage(PreparedQueryResult result)
         uint64 itemId = fields[0].GetUInt64();
         uint32 itemEntry = fields[1].GetUInt32();
         uint8 slot = fields[2].GetUInt8();
-        uint32 creatorGuid = fields[3].GetUInt32();
+        ObjectGuid creatorGuid(HIGHGUID_PLAYER, fields[3].GetUInt32());
         uint32 randomProperty = fields[4].GetUInt32();
         uint32 suffixFactor = fields[5].GetUInt32();
 
@@ -18287,7 +18291,7 @@ void Player::_LoadVoidStorage(PreparedQueryResult result)
         if (creatorGuid && !sObjectMgr->GetPlayerNameByGUID(creatorGuid, name))
         {
             TC_LOG_ERROR("entities.player", "Player::_LoadVoidStorage - Player (GUID: %u, name: %s) has an item with an invalid creator guid, set to 0 (item id: " UI64FMTD ", entry: %u, creatorGuid: %u).", GetGUIDLow(), GetName().c_str(), itemId, itemEntry, creatorGuid);
-            creatorGuid = 0;
+            creatorGuid.Clear();
         }
 
         _voidStorageItems[slot] = new VoidStorageItem(itemId, itemEntry, creatorGuid, randomProperty, suffixFactor);
@@ -18345,7 +18349,7 @@ Item* Player::_LoadItem(SQLTransaction& trans, uint32 zoneId, uint32 timeDiff, F
                         item->SetRefundRecipient((*result)[0].GetUInt32());
                         item->SetPaidMoney((*result)[1].GetUInt32());
                         item->SetPaidExtendedCost((*result)[2].GetUInt16());
-                        AddRefundReference(item->GetGUIDLow());
+                        AddRefundReference(item->GetGUID());
                     }
                     else
                     {
@@ -18459,7 +18463,7 @@ void Player::_LoadMailedItems(Mail* mail)
 
         Item* item = NewItemOrBag(proto);
 
-        if (!item->LoadFromDB(itemGuid, MAKE_NEW_GUID(fields[13].GetUInt32(), 0, HIGHGUID_PLAYER), fields, itemTemplate))
+        if (!item->LoadFromDB(itemGuid, ObjectGuid(HIGHGUID_PLAYER, fields[13].GetUInt32()), fields, itemTemplate))
         {
             TC_LOG_ERROR("entities.player", "Player::_LoadMailedItems - Item in mail (%u) doesn't exist !!!! - item guid: %u, deleted from mail", mail->messageID, itemGuid);
 
@@ -18885,7 +18889,7 @@ void Player::_LoadBoundInstances(PreparedQueryResult result)
                 }
                 else if (!perm && group)
                 {
-                    TC_LOG_ERROR("entities.player", "_LoadBoundInstances: player %s(%d) is in group %d but has a non-permanent character bind to map %d (%s), %d, %d", GetName().c_str(), GetGUIDLow(), GUID_LOPART(group->GetGUID()), mapId, mapname.c_str(), instanceId, difficulty);
+                    TC_LOG_ERROR("entities.player", "_LoadBoundInstances: player %s(%d) is in group %d but has a non-permanent character bind to map %d (%s), %d, %d", GetName().c_str(), GetGUIDLow(), group->GetLowGUID(), mapId, mapname.c_str(), instanceId, difficulty);
                     deleteInstance = true;
                 }
             }
@@ -19190,7 +19194,7 @@ bool Player::Satisfy(AccessRequirement const* ar, uint32 target_map, bool report
 
         uint32 missingAchievement = 0;
         Player* leader = this;
-        uint64 leaderGuid = GetGroup() ? GetGroup()->GetLeaderGUID() : GetGUID();
+        ObjectGuid leaderGuid = GetGroup() ? GetGroup()->GetLeaderGUID() : GetGUID();
         if (leaderGuid != GetGUID())
             leader = ObjectAccessor::FindPlayer(leaderGuid);
 
@@ -19740,8 +19744,8 @@ void Player::_SaveAuras(SQLTransaction& trans)
         uint8 index = 0;
         stmt = CharacterDatabase.GetPreparedStatement(CHAR_INS_AURA);
         stmt->setUInt32(index++, GetGUIDLow());
-        stmt->setUInt64(index++, itr->second->GetCasterGUID());
-        stmt->setUInt64(index++, itr->second->GetCastItemGUID());
+        stmt->setUInt64(index++, itr->second->GetCasterGUID().GetRawValue());
+        stmt->setUInt64(index++, itr->second->GetCastItemGUID().GetRawValue());
         stmt->setUInt32(index++, itr->second->GetId());
         stmt->setUInt8(index++, effMask);
         stmt->setUInt8(index++, recalculateMask);
@@ -19784,14 +19788,14 @@ void Player::_SaveInventory(SQLTransaction& trans)
     // the client auto counts down in real time after having received the initial played time on the first
     // SMSG_ITEM_REFUND_INFO_RESPONSE packet.
     // Item::UpdatePlayedTime is only called when needed, which is in DB saves, and item refund info requests.
-    std::set<uint32>::iterator i_next;
-    for (std::set<uint32>::iterator itr = m_refundableItems.begin(); itr!= m_refundableItems.end(); itr = i_next)
+    GuidSet::iterator i_next;
+    for (GuidSet::iterator itr = m_refundableItems.begin(); itr!= m_refundableItems.end(); itr = i_next)
     {
         // use copy iterator because itr may be invalid after operations in this loop
         i_next = itr;
         ++i_next;
 
-        Item* iPtr = GetItemByGuid(MAKE_NEW_GUID(*itr, 0, HIGHGUID_ITEM));
+        Item* iPtr = GetItemByGuid(*itr);
         if (iPtr)
         {
             iPtr->UpdatePlayedTime(this);
@@ -19799,7 +19803,7 @@ void Player::_SaveInventory(SQLTransaction& trans)
         }
         else
         {
-            TC_LOG_ERROR("entities.player", "Can't find item guid %u but is in refundable storage for player %u ! Removing.", *itr, GetGUIDLow());
+            TC_LOG_ERROR("entities.player", "Can't find %s but is in refundable storage for player %u ! Removing.", itr->ToString().c_str(), GetGUIDLow());
             m_refundableItems.erase(itr);
         }
     }
@@ -19840,7 +19844,7 @@ void Player::_SaveInventory(SQLTransaction& trans)
 
                 // also THIS item should be somewhere else, cheat attempt
                 item->FSetState(ITEM_REMOVED); // we are IN updateQueue right now, can't use SetState which modifies the queue
-                DeleteRefundReference(item->GetGUIDLow());
+                DeleteRefundReference(item->GetGUID());
                 // don't skip, let the switch delete it
                 //continue;
             }
@@ -19901,7 +19905,7 @@ void Player::_SaveVoidStorage(SQLTransaction& trans)
             stmt->setUInt32(1, lowGuid);
             stmt->setUInt32(2, _voidStorageItems[i]->ItemEntry);
             stmt->setUInt8(3, i);
-            stmt->setUInt32(4, _voidStorageItems[i]->CreatorGuid);
+            stmt->setUInt32(4, _voidStorageItems[i]->CreatorGuid.GetCounter());
             stmt->setUInt32(5, _voidStorageItems[i]->ItemRandomPropertyId);
             stmt->setUInt32(6, _voidStorageItems[i]->ItemSuffixFactor);
         }
@@ -20415,7 +20419,7 @@ void Player::SendAttackSwingNotInRange()
     GetSession()->SendPacket(&data);
 }
 
-void Player::SavePositionInDB(uint32 mapid, float x, float y, float z, float o, uint32 zone, uint64 guid)
+void Player::SavePositionInDB(uint32 mapid, float x, float y, float z, float o, uint32 zone, ObjectGuid guid)
 {
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_UPD_CHARACTER_POSITION);
 
@@ -20425,7 +20429,7 @@ void Player::SavePositionInDB(uint32 mapid, float x, float y, float z, float o,
     stmt->setFloat(3, o);
     stmt->setUInt16(4, uint16(mapid));
     stmt->setUInt16(5, uint16(zone));
-    stmt->setUInt32(6, GUID_LOPART(guid));
+    stmt->setUInt32(6, guid.GetCounter());
 
     CharacterDatabase.Execute(stmt);
 }
@@ -20441,10 +20445,10 @@ void Player::SetUInt32ValueInArray(Tokenizer& Tokenizer, uint16 index, uint32 va
     Tokenizer[index] = buf;
 }
 
-void Player::Customize(uint64 guid, uint8 gender, uint8 skin, uint8 face, uint8 hairStyle, uint8 hairColor, uint8 facialHair)
+void Player::Customize(ObjectGuid guid, uint8 gender, uint8 skin, uint8 face, uint8 hairStyle, uint8 hairColor, uint8 facialHair)
 {
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_CHAR_PLAYERBYTES2);
-    stmt->setUInt32(0, GUID_LOPART(guid));
+    stmt->setUInt32(0, guid.GetCounter());
     PreparedQueryResult result = CharacterDatabase.Query(stmt);
 
     if (!result)
@@ -20461,7 +20465,7 @@ void Player::Customize(uint64 guid, uint8 gender, uint8 skin, uint8 face, uint8
     stmt->setUInt8(0, gender);
     stmt->setUInt32(1, skin | (face << 8) | (hairStyle << 16) | (hairColor << 24));
     stmt->setUInt32(2, playerBytes2);
-    stmt->setUInt32(3, GUID_LOPART(guid));
+    stmt->setUInt32(3, guid.GetCounter());
 
     CharacterDatabase.Execute(stmt);
 }
@@ -20493,7 +20497,7 @@ void Player::SendAttackSwingBadFacingAttack()
 void Player::SendAutoRepeatCancel(Unit* target)
 {
     WorldPacket data(SMSG_CANCEL_AUTO_REPEAT, target->GetPackGUID().size());
-    data.append(target->GetPackGUID());                     // may be it's target guid
+    data << target->GetPackGUID();                     // may be it's target guid
     GetSession()->SendPacket(&data);
 }
 
@@ -20662,9 +20666,9 @@ void Player::UpdateDuelFlag(time_t currTime)
 
 Pet* Player::GetPet() const
 {
-    if (uint64 pet_guid = GetPetGUID())
+    if (ObjectGuid pet_guid = GetPetGUID())
     {
-        if (!IS_PET_GUID(pet_guid))
+        if (!pet_guid.IsPet())
             return NULL;
 
         Pet* pet = ObjectAccessor::GetPet(*this, pet_guid);
@@ -20778,10 +20782,10 @@ void Player::StopCastingCharm()
 
     if (GetCharmGUID())
     {
-        TC_LOG_FATAL("entities.player", "Player %s (GUID: " UI64FMTD " is not able to uncharm unit (GUID: " UI64FMTD " Entry: %u, Type: %u)", GetName().c_str(), GetGUID(), GetCharmGUID(), charm->GetEntry(), charm->GetTypeId());
+        TC_LOG_FATAL("entities.player", "Player %s (%s) is not able to uncharm unit (%s)", GetName().c_str(), GetGUID().ToString().c_str(), GetCharmGUID().ToString().c_str());
         if (charm->GetCharmerGUID())
         {
-            TC_LOG_FATAL("entities.player", "Charmed unit has charmer guid " UI64FMTD, charm->GetCharmerGUID());
+            TC_LOG_FATAL("entities.player", "Charmed unit has charmer %s", charm->GetCharmerGUID().ToString().c_str());
             ASSERT(false);
         }
         else
@@ -20984,7 +20988,7 @@ void Player::PossessSpellInitialize()
 
     if (!charmInfo)
     {
-        TC_LOG_ERROR("entities.player", "Player::PossessSpellInitialize(): charm (" UI64FMTD ") has no charminfo!", charm->GetGUID());
+        TC_LOG_ERROR("entities.player", "Player::PossessSpellInitialize(): charm (%s) has no charminfo!", charm->GetGUID().ToString().c_str());
         return;
     }
 
@@ -21096,7 +21100,7 @@ void Player::CharmSpellInitialize()
     CharmInfo* charmInfo = charm->GetCharmInfo();
     if (!charmInfo)
     {
-        TC_LOG_ERROR("entities.player", "Player::CharmSpellInitialize(): the player's charm (" UI64FMTD ") has no charminfo!", charm->GetGUID());
+        TC_LOG_ERROR("entities.player", "Player::CharmSpellInitialize(): the player's charm (%s) has no charminfo!", charm->GetGUID().ToString().c_str());
         return;
     }
 
@@ -21348,7 +21352,7 @@ void Player::SendProficiency(ItemClass itemClass, uint32 itemSubclassMask)
     GetSession()->SendPacket(&data);
 }
 
-void Player::RemovePetitionsAndSigns(uint64 guid, uint32 type)
+void Player::RemovePetitionsAndSigns(ObjectGuid guid, uint32 type)
 {
     PreparedStatement* stmt;
 
@@ -21360,7 +21364,7 @@ void Player::RemovePetitionsAndSigns(uint64 guid, uint32 type)
         stmt->setUInt8(1, uint8(type));
     }
 
-    stmt->setUInt32(0, GUID_LOPART(guid));
+    stmt->setUInt32(0, guid.GetCounter());
     PreparedQueryResult result = CharacterDatabase.Query(stmt);
 
     if (result)
@@ -21368,8 +21372,8 @@ void Player::RemovePetitionsAndSigns(uint64 guid, uint32 type)
         do                                                  // this part effectively does nothing, since the deletion / modification only takes place _after_ the PetitionQuery. Though I don't know if the result remains intact if I execute the delete query beforehand.
         {                                                   // and SendPetitionQueryOpcode reads data from the DB
             Field* fields = result->Fetch();
-            uint64 ownerguid   = MAKE_NEW_GUID(fields[0].GetUInt32(), 0, HIGHGUID_PLAYER);
-            uint64 petitionguid = MAKE_NEW_GUID(fields[1].GetUInt32(), 0, HIGHGUID_ITEM);
+            ObjectGuid ownerguid = ObjectGuid(HIGHGUID_PLAYER, fields[0].GetUInt32());
+            ObjectGuid petitionguid = ObjectGuid(HIGHGUID_ITEM, fields[1].GetUInt32());
 
             // send update if charter owner in game
             Player* owner = ObjectAccessor::FindPlayer(ownerguid);
@@ -21381,7 +21385,7 @@ void Player::RemovePetitionsAndSigns(uint64 guid, uint32 type)
         {
             stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_ALL_PETITION_SIGNATURES);
 
-            stmt->setUInt32(0, GUID_LOPART(guid));
+            stmt->setUInt32(0, guid.GetCounter());
 
             CharacterDatabase.Execute(stmt);
         }
@@ -21389,7 +21393,7 @@ void Player::RemovePetitionsAndSigns(uint64 guid, uint32 type)
         {
             stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_PETITION_SIGNATURE);
 
-            stmt->setUInt32(0, GUID_LOPART(guid));
+            stmt->setUInt32(0, guid.GetCounter());
             stmt->setUInt8(1, uint8(type));
 
             CharacterDatabase.Execute(stmt);
@@ -21400,32 +21404,32 @@ void Player::RemovePetitionsAndSigns(uint64 guid, uint32 type)
     if (type == 10)
     {
         stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_PETITION_BY_OWNER);
-        stmt->setUInt32(0, GUID_LOPART(guid));
+        stmt->setUInt32(0, guid.GetCounter());
         trans->Append(stmt);
 
         stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_PETITION_SIGNATURE_BY_OWNER);
-        stmt->setUInt32(0, GUID_LOPART(guid));
+        stmt->setUInt32(0, guid.GetCounter());
         trans->Append(stmt);
     }
     else
     {
         stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_PETITION_BY_OWNER_AND_TYPE);
-        stmt->setUInt32(0, GUID_LOPART(guid));
+        stmt->setUInt32(0, guid.GetCounter());
         stmt->setUInt8(1, uint8(type));
         trans->Append(stmt);
 
         stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_PETITION_SIGNATURE_BY_OWNER_AND_TYPE);
-        stmt->setUInt32(0, GUID_LOPART(guid));
+        stmt->setUInt32(0, guid.GetCounter());
         stmt->setUInt8(1, uint8(type));
         trans->Append(stmt);
     }
     CharacterDatabase.CommitTransaction(trans);
 }
 
-void Player::LeaveAllArenaTeams(uint64 guid)
+void Player::LeaveAllArenaTeams(ObjectGuid guid)
 {
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_PLAYER_ARENA_TEAMS);
-    stmt->setUInt32(0, GUID_LOPART(guid));
+    stmt->setUInt32(0, guid.GetCounter());
     PreparedQueryResult result = CharacterDatabase.Query(stmt);
 
     if (!result)
@@ -21910,13 +21914,13 @@ inline bool Player::_StoreOrEquipNewItem(uint32 vendorslot, uint32 item, uint8 c
             it->SetPaidMoney(price);
             it->SetPaidExtendedCost(crItem->ExtendedCost);
             it->SaveRefundDataToDB();
-            AddRefundReference(it->GetGUIDLow());
+            AddRefundReference(it->GetGUID());
         }
     }
     return true;
 }
 
-bool Player::BuyCurrencyFromVendorSlot(uint64 vendorGuid, uint32 vendorSlot, uint32 currency, uint32 count)
+bool Player::BuyCurrencyFromVendorSlot(ObjectGuid vendorGuid, uint32 vendorSlot, uint32 currency, uint32 count)
 {
     // cheating attempt
     if (count < 1) count = 1;
@@ -21934,7 +21938,7 @@ bool Player::BuyCurrencyFromVendorSlot(uint64 vendorGuid, uint32 vendorSlot, uin
     Creature* creature = GetNPCIfCanInteractWith(vendorGuid, UNIT_NPC_FLAG_VENDOR);
     if (!creature)
     {
-        TC_LOG_DEBUG("network", "WORLD: BuyCurrencyFromVendorSlot - Unit (GUID: %u) not found or you can't interact with him.", GUID_LOPART(vendorGuid));
+        TC_LOG_DEBUG("network", "WORLD: BuyCurrencyFromVendorSlot - %s not found or you can't interact with him.", vendorGuid.ToString().c_str());
         SendBuyError(BUY_ERR_DISTANCE_TOO_FAR, NULL, currency, 0);
         return false;
     }
@@ -22076,7 +22080,7 @@ bool Player::BuyCurrencyFromVendorSlot(uint64 vendorGuid, uint32 vendorSlot, uin
 }
 
 // Return true is the bought item has a max count to force refresh of window by caller
-bool Player::BuyItemFromVendorSlot(uint64 vendorguid, uint32 vendorslot, uint32 item, uint8 count, uint8 bag, uint8 slot)
+bool Player::BuyItemFromVendorSlot(ObjectGuid vendorguid, uint32 vendorslot, uint32 item, uint8 count, uint8 bag, uint8 slot)
 {
     // cheating attempt
     if (count < 1) count = 1;
@@ -22107,7 +22111,7 @@ bool Player::BuyItemFromVendorSlot(uint64 vendorguid, uint32 vendorslot, uint32
     Creature* creature = GetNPCIfCanInteractWith(vendorguid, UNIT_NPC_FLAG_VENDOR);
     if (!creature)
     {
-        TC_LOG_DEBUG("network", "WORLD: BuyItemFromVendor - Unit (GUID: %u) not found or you can't interact with him.", uint32(GUID_LOPART(vendorguid)));
+        TC_LOG_DEBUG("network", "WORLD: BuyItemFromVendor - %s not found or you can't interact with him.", vendorguid.ToString().c_str());
         SendBuyError(BUY_ERR_DISTANCE_TOO_FAR, NULL, item, 0);
         return false;
     }
@@ -22961,7 +22965,7 @@ bool Player::CanAlwaysSee(WorldObject const* obj) const
     if (m_mover == obj)
         return true;
 
-    if (uint64 guid = GetUInt64Value(PLAYER_FARSIGHT))
+    if (ObjectGuid guid = GetGuidValue(PLAYER_FARSIGHT))
         if (obj->GetGUID() == guid)
             return true;
 
@@ -23006,13 +23010,13 @@ bool Player::IsVisibleGloballyFor(Player const* u) const
 }
 
 template<class T>
-inline void UpdateVisibilityOf_helper(std::set<uint64>& s64, T* target, std::set<Unit*>& /*v*/)
+inline void UpdateVisibilityOf_helper(GuidSet& s64, T* target, std::set<Unit*>& /*v*/)
 {
     s64.insert(target->GetGUID());
 }
 
 template<>
-inline void UpdateVisibilityOf_helper(std::set<uint64>& s64, GameObject* target, std::set<Unit*>& /*v*/)
+inline void UpdateVisibilityOf_helper(GuidSet& s64, GameObject* target, std::set<Unit*>& /*v*/)
 {
     // @HACK: This is to prevent objects like deeprun tram from disappearing when player moves far from its spawn point while riding it
     if ((target->GetGOInfo()->type != GAMEOBJECT_TYPE_TRANSPORT))
@@ -23020,14 +23024,14 @@ inline void UpdateVisibilityOf_helper(std::set<uint64>& s64, GameObject* target,
 }
 
 template<>
-inline void UpdateVisibilityOf_helper(std::set<uint64>& s64, Creature* target, std::set<Unit*>& v)
+inline void UpdateVisibilityOf_helper(GuidSet& s64, Creature* target, std::set<Unit*>& v)
 {
     s64.insert(target->GetGUID());
     v.insert(target);
 }
 
 template<>
-inline void UpdateVisibilityOf_helper(std::set<uint64>& s64, Player* target, std::set<Unit*>& v)
+inline void UpdateVisibilityOf_helper(GuidSet& s64, Player* target, std::set<Unit*>& v)
 {
     s64.insert(target->GetGUID());
     v.insert(target);
@@ -23089,9 +23093,9 @@ void Player::UpdateTriggerVisibility()
 
     UpdateData udata(GetMapId());
     WorldPacket packet;
-    for (ClientGUIDs::iterator itr = m_clientGUIDs.begin(); itr != m_clientGUIDs.end(); ++itr)
+    for (GuidSet::iterator itr = m_clientGUIDs.begin(); itr != m_clientGUIDs.end(); ++itr)
     {
-        if (IS_CREATURE_GUID(*itr))
+        if (itr->IsCreature())
         {
             Creature* creature = GetMap()->GetCreature(*itr);
             // Update fields of triggers, transformed units or unselectable units (values dependent on GM state)
@@ -23102,7 +23106,7 @@ void Player::UpdateTriggerVisibility()
             creature->BuildValuesUpdateBlockForPlayer(&udata, this);
             creature->RemoveFieldNotifyFlag(UF_FLAG_PUBLIC);
         }
-        else if (IS_GAMEOBJECT_GUID((*itr)))
+        else if (itr->IsGameObject())
         {
             GameObject* go = GetMap()->GetGameObject(*itr);
             if (!go)
@@ -23239,14 +23243,14 @@ bool Player::IsQuestRewarded(uint32 quest_id) const
 
 Unit* Player::GetSelectedUnit() const
 {
-    if (uint64 selectionGUID = GetUInt64Value(UNIT_FIELD_TARGET))
+    if (ObjectGuid selectionGUID = GetTarget())
         return ObjectAccessor::GetUnit(*this, selectionGUID);
     return NULL;
 }
 
 Player* Player::GetSelectedPlayer() const
 {
-    if (uint64 selectionGUID = GetUInt64Value(UNIT_FIELD_TARGET))
+    if (ObjectGuid selectionGUID = GetTarget())
         return ObjectAccessor::GetPlayer(*this, selectionGUID);
     return NULL;
 }
@@ -23260,11 +23264,11 @@ void Player::SendComboPoints()
         if (m_mover != this)
         {
             data.Initialize(SMSG_PET_UPDATE_COMBO_POINTS, m_mover->GetPackGUID().size()+combotarget->GetPackGUID().size()+1);
-            data.append(m_mover->GetPackGUID());
+            data << m_mover->GetPackGUID();
         }
         else
             data.Initialize(SMSG_UPDATE_COMBO_POINTS, combotarget->GetPackGUID().size()+1);
-        data.append(combotarget->GetPackGUID());
+        data << combotarget->GetPackGUID();
         data << uint8(m_comboPoints);
         GetSession()->SendPacket(&data);
     }
@@ -23286,7 +23290,7 @@ void Player::AddComboPoints(Unit* target, int8 count, Spell* spell)
     {
         if (m_comboTarget)
             if (Unit* target2 = ObjectAccessor::GetUnit(*this, m_comboTarget))
-                target2->RemoveComboPointHolder(GetGUIDLow());
+                target2->RemoveComboPointHolder(GetGUID());
 
         // Spells will always add value to m_comboPoints eventualy, so it must be cleared first
         if (spell)
@@ -23295,7 +23299,7 @@ void Player::AddComboPoints(Unit* target, int8 count, Spell* spell)
         m_comboTarget = target->GetGUID();
         *comboPoints = count;
 
-        target->AddComboPointHolder(GetGUIDLow());
+        target->AddComboPointHolder(GetGUID());
     }
 
     if (*comboPoints > 5)
@@ -23332,9 +23336,9 @@ void Player::ClearComboPoints()
     SendComboPoints();
 
     if (Unit* target = ObjectAccessor::GetUnit(*this, m_comboTarget))
-        target->RemoveComboPointHolder(GetGUIDLow());
+        target->RemoveComboPointHolder(GetGUID());
 
-    m_comboTarget = 0;
+    m_comboTarget.Clear();
 }
 
 void Player::SetGroup(Group* group, int8 subgroup)
@@ -23841,7 +23845,7 @@ void Player::SendAurasForTarget(Unit* target)
         target->SetHover(true, true);
 
     WorldPacket data(SMSG_AURA_UPDATE_ALL);
-    data.append(target->GetPackGUID());
+    data << target->GetPackGUID();
 
     Unit::VisibleAuraMap const* visibleAuras = target->GetVisibleAuras();
     for (Unit::VisibleAuraMap::const_iterator itr = visibleAuras->begin(); itr != visibleAuras->end(); ++itr)
@@ -24149,14 +24153,14 @@ void Player::UpdateForQuestWorldObjects()
 
     UpdateData udata(GetMapId());
     WorldPacket packet;
-    for (ClientGUIDs::iterator itr = m_clientGUIDs.begin(); itr != m_clientGUIDs.end(); ++itr)
+    for (GuidSet::iterator itr = m_clientGUIDs.begin(); itr != m_clientGUIDs.end(); ++itr)
     {
-        if (IS_GAMEOBJECT_GUID(*itr))
+        if (itr->IsGameObject())
         {
             if (GameObject* obj = HashMapHolder<GameObject>::Find(*itr))
                 obj->BuildValuesUpdateBlockForPlayer(&udata, this);
         }
-        else if (IS_CRE_OR_VEH_GUID(*itr))
+        else if (itr->IsCreatureOrVehicle())
         {
             Creature* obj = ObjectAccessor::GetCreatureOrPetOrVehicle(*this, *itr);
             if (!obj)
@@ -24497,7 +24501,8 @@ void Player::RewardPlayerAndGroupAtEvent(uint32 creature_id, WorldObject* pRewar
 {
     if (!pRewardSource)
         return;
-    uint64 creature_guid = (pRewardSource->GetTypeId() == TYPEID_UNIT) ? pRewardSource->GetGUID() : uint64(0);
+
+    ObjectGuid creature_guid = (pRewardSource->GetTypeId() == TYPEID_UNIT) ? pRewardSource->GetGUID() : ObjectGuid::Empty;
 
     // prepare data for near group iteration
     if (Group* group = GetGroup())
@@ -24587,7 +24592,7 @@ void Player::ResurrectUsingRequestData()
 void Player::SetClientControl(Unit* target, bool allowMove)
 {
     WorldPacket data(SMSG_CLIENT_CONTROL_UPDATE, target->GetPackGUID().size()+1);
-    data.append(target->GetPackGUID());
+    data << target->GetPackGUID();
     data << uint8(allowMove ? 1 : 0);
     GetSession()->SendPacket(&data);
 
@@ -24793,7 +24798,7 @@ PartyResult Player::CanUninviteFromGroup() const
 
     if (grp->isLFGGroup())
     {
-        uint64 gguid = grp->GetGUID();
+        ObjectGuid gguid = grp->GetGUID();
         if (!sLFGMgr->GetKicksLeft(gguid))
             return ERR_PARTY_LFG_BOOT_LIMIT;
 
@@ -25001,7 +25006,7 @@ void Player::SetViewpoint(WorldObject* target, bool apply)
     {
         TC_LOG_DEBUG("maps", "Player::CreateViewpoint: Player %s create seer %u (TypeId: %u).", GetName().c_str(), target->GetEntry(), target->GetTypeId());
 
-        if (!AddUInt64Value(PLAYER_FARSIGHT, target->GetGUID()))
+        if (!AddGuidValue(PLAYER_FARSIGHT, target->GetGUID()))
         {
             TC_LOG_FATAL("entities.player", "Player::CreateViewpoint: Player %s cannot add new viewpoint!", GetName().c_str());
             return;
@@ -25017,7 +25022,7 @@ void Player::SetViewpoint(WorldObject* target, bool apply)
     {
         TC_LOG_DEBUG("maps", "Player::CreateViewpoint: Player %s remove seer", GetName().c_str());
 
-        if (!RemoveUInt64Value(PLAYER_FARSIGHT, target->GetGUID()))
+        if (!RemoveGuidValue(PLAYER_FARSIGHT, target->GetGUID()))
         {
             TC_LOG_FATAL("entities.player", "Player::CreateViewpoint: Player %s cannot remove current viewpoint!", GetName().c_str());
             return;
@@ -25036,7 +25041,7 @@ void Player::SetViewpoint(WorldObject* target, bool apply)
 
 WorldObject* Player::GetViewpoint() const
 {
-    if (uint64 guid = GetUInt64Value(PLAYER_FARSIGHT))
+    if (ObjectGuid guid = GetGuidValue(PLAYER_FARSIGHT))
         return (WorldObject*)ObjectAccessor::GetObjectByTypeMask(*this, guid, TYPEMASK_SEER);
     return NULL;
 }
@@ -25960,7 +25965,7 @@ bool Player::LearnTalent(uint32 talentId, uint32 talentRank)
     return true;
 }
 
-void Player::LearnPetTalent(uint64 petGuid, uint32 talentId, uint32 talentRank)
+void Player::LearnPetTalent(ObjectGuid petGuid, uint32 talentId, uint32 talentRank)
 {
     Pet* pet = GetPet();
 
@@ -26356,7 +26361,7 @@ void Player::BuildEnchantmentsInfoData(WorldPacket* data)
         data->put<uint16>(enchantmentMaskPos, enchantmentMask);
 
         *data << uint16(0);                                 // unknown
-        data->appendPackGUID(item->GetUInt64Value(ITEM_FIELD_CREATOR)); // item creator
+        *data << item->GetGuidValue(ITEM_FIELD_CREATOR).WriteAsPacked(); // item creator
         *data << uint32(0);                                 // seed?
     }
 
@@ -26383,7 +26388,7 @@ void Player::SendEquipmentSetList()
             if (itr->second.IgnoreMask & (1 << i))
                 data.appendPackGUID(uint64(1));
             else
-                data.appendPackGUID(MAKE_NEW_GUID(itr->second.Items[i], 0, HIGHGUID_ITEM));
+                data << ObjectGuid(HIGHGUID_ITEM, 0, itr->second.Items[i]).WriteAsPacked();
         }
 
         ++count;                                            // client have limit but it checked at loading and set
@@ -26546,7 +26551,7 @@ void Player::SendClearCooldown(uint32 spell_id, Unit* target)
 void Player::SendClearAllCooldowns(Unit* target)
 {
     uint32 spellCount = m_spellCooldowns.size();
-    ObjectGuid guid = target ? target->GetGUID() : 0;
+    ObjectGuid guid = target ? target->GetGUID() : ObjectGuid::Empty;
 
     WorldPacket data(SMSG_CLEAR_COOLDOWNS, 4+8);
     data.WriteBit(guid[1]);
@@ -26950,18 +26955,16 @@ void Player::SendDuelCountdown(uint32 counter)
     GetSession()->SendPacket(&data);
 }
 
-void Player::AddRefundReference(uint32 it)
+void Player::AddRefundReference(ObjectGuid it)
 {
     m_refundableItems.insert(it);
 }
 
-void Player::DeleteRefundReference(uint32 it)
+void Player::DeleteRefundReference(ObjectGuid it)
 {
-    std::set<uint32>::iterator itr = m_refundableItems.find(it);
+    GuidSet::iterator itr = m_refundableItems.find(it);
     if (itr != m_refundableItems.end())
-    {
         m_refundableItems.erase(itr);
-    }
 }
 
 void Player::SendRefundInfo(Item* item)
@@ -27305,9 +27308,9 @@ void Player::_SaveInstanceTimeRestrictions(SQLTransaction& trans)
     }
 }
 
-bool Player::IsInWhisperWhiteList(uint64 guid)
+bool Player::IsInWhisperWhiteList(ObjectGuid guid)
 {
-    for (WhisperListContainer::const_iterator itr = WhisperList.begin(); itr != WhisperList.end(); ++itr)
+    for (GuidList::const_iterator itr = WhisperList.begin(); itr != WhisperList.end(); ++itr)
         if (*itr == guid)
             return true;
 
@@ -27609,11 +27612,6 @@ Pet* Player::SummonPet(uint32 entry, float x, float y, float z, float ang, PetTy
     return pet;
 }
 
-bool Player::IsLoading() const
-{
-    return GetSession()->PlayerLoading();
-}
-
 bool Player::CanUseMastery() const
 {
     return HasSpell(MasterySpells[getClass()]);
diff --git a/src/server/game/Entities/Player/Player.h b/src/server/game/Entities/Player/Player.h
index 26f6945dd52..e2395b6d734 100644
--- a/src/server/game/Entities/Player/Player.h
+++ b/src/server/game/Entities/Player/Player.h
@@ -181,8 +181,6 @@ typedef std::unordered_map<uint32, PlayerSpell*> PlayerSpellMap;
 typedef std::list<SpellModifier*> SpellModList;
 typedef std::unordered_map<uint32, PlayerCurrency> PlayerCurrenciesMap;
 
-typedef std::list<uint64> WhisperListContainer;
-
 /// Maximum number of CompactUnitFrames profiles
 #define MAX_CUF_PROFILES 5
 
@@ -1071,7 +1069,7 @@ struct BGData
 
 struct TradeStatusInfo
 {
-    TradeStatusInfo() : Status(TRADE_STATUS_BUSY), TraderGuid(0), Result(EQUIP_ERR_OK),
+    TradeStatusInfo() : Status(TRADE_STATUS_BUSY), TraderGuid(), Result(EQUIP_ERR_OK),
         IsTargetResult(false), ItemLimitCategoryId(0), Slot(0) { }
 
     TradeStatus Status;
@@ -1088,12 +1086,11 @@ struct VoidStorageItem
     {
         ItemId = 0;
         ItemEntry = 0;
-        CreatorGuid = 0;
         ItemRandomPropertyId = 0;
         ItemSuffixFactor = 0;
     }
 
-    VoidStorageItem(uint64 id, uint32 entry, uint32 creator, uint32 randomPropertyId, uint32 suffixFactor)
+    VoidStorageItem(uint64 id, uint32 entry, ObjectGuid creator, uint32 randomPropertyId, uint32 suffixFactor)
     {
         ItemId = id;
         ItemEntry = entry;
@@ -1104,7 +1101,7 @@ struct VoidStorageItem
 
     uint64 ItemId;
     uint32 ItemEntry;
-    uint32 CreatorGuid;
+    ObjectGuid CreatorGuid;
     uint32 ItemRandomPropertyId;
     uint32 ItemSuffixFactor;
 };
@@ -1114,21 +1111,21 @@ class TradeData
     public:                                                 // constructors
         TradeData(Player* player, Player* trader) :
             m_player(player),  m_trader(trader), m_accepted(false), m_acceptProccess(false),
-            m_money(0), m_spell(0), m_spellCastItem(0) { memset(m_items, 0, TRADE_SLOT_COUNT * sizeof(uint64)); }
+            m_money(0), m_spell(0), m_spellCastItem() { }
 
         Player* GetTrader() const { return m_trader; }
         TradeData* GetTraderData() const;
 
         Item* GetItem(TradeSlots slot) const;
-        bool HasItem(uint64 itemGuid) const;
-        TradeSlots GetTradeSlotForItem(uint64 itemGuid) const;
+        bool HasItem(ObjectGuid itemGuid) const;
+        TradeSlots GetTradeSlotForItem(ObjectGuid itemGuid) const;
         void SetItem(TradeSlots slot, Item* item);
 
         uint32 GetSpell() const { return m_spell; }
         void SetSpell(uint32 spell_id, Item* castItem = NULL);
 
         Item*  GetSpellCastItem() const;
-        bool HasSpellCastItem() const { return m_spellCastItem != 0; }
+        bool HasSpellCastItem() const { return !m_spellCastItem.IsEmpty(); }
 
         uint64 GetMoney() const { return m_money; }
         void SetMoney(uint64 money);
@@ -1154,14 +1151,14 @@ class TradeData
         uint64     m_money;                                 // m_player place money to trade
 
         uint32     m_spell;                                 // m_player apply spell to non-traded slot item
-        uint64     m_spellCastItem;                         // applied spell cast by item use
+        ObjectGuid m_spellCastItem;                         // applied spell cast by item use
 
-        uint64     m_items[TRADE_SLOT_COUNT];               // traded items from m_player side including non-traded slot
+        ObjectGuid m_items[TRADE_SLOT_COUNT];               // traded items from m_player side including non-traded slot
 };
 
 struct ResurrectionData
 {
-    uint64 GUID;
+    ObjectGuid GUID;
     WorldLocation Location;
     uint32 Health;
     uint32 Mana;
@@ -1290,8 +1287,8 @@ class Player : public Unit, public GridObject<Player>
         void SendInstanceResetWarning(uint32 mapid, Difficulty difficulty, uint32 time);
 
         bool CanInteractWithQuestGiver(Object* questGiver);
-        Creature* GetNPCIfCanInteractWith(uint64 guid, uint32 npcflagmask);
-        GameObject* GetGameObjectIfCanInteractWith(uint64 guid, GameobjectTypes type) const;
+        Creature* GetNPCIfCanInteractWith(ObjectGuid guid, uint32 npcflagmask);
+        GameObject* GetGameObjectIfCanInteractWith(ObjectGuid guid, GameobjectTypes type) const;
 
         void ToggleAFK();
         void ToggleDND();
@@ -1381,7 +1378,7 @@ class Player : public Unit, public GridObject<Player>
         uint8 FindEquipSlot(ItemTemplate const* proto, uint32 slot, bool swap) const;
         uint32 GetItemCount(uint32 item, bool inBankAlso = false, Item* skipItem = NULL) const;
         uint32 GetItemCountWithLimitCategory(uint32 limitCategory, Item* skipItem = NULL) const;
-        Item* GetItemByGuid(uint64 guid) const;
+        Item* GetItemByGuid(ObjectGuid guid) const;
         Item* GetItemByEntry(uint32 entry) const;
         Item* GetItemByPos(uint16 pos) const;
         Item* GetItemByPos(uint8 bag, uint8 slot) const;
@@ -1438,8 +1435,8 @@ class Player : public Unit, public GridObject<Player>
         InventoryResult CanTakeMoreSimilarItems(uint32 entry, uint32 count, Item* pItem, uint32* no_space_count = NULL, uint32* itemLimitCategory = NULL) const;
         InventoryResult CanStoreItem(uint8 bag, uint8 slot, ItemPosCountVec& dest, uint32 entry, uint32 count, Item* pItem = NULL, bool swap = false, uint32* no_space_count = NULL) const;
 
-        void AddRefundReference(uint32 it);
-        void DeleteRefundReference(uint32 it);
+        void AddRefundReference(ObjectGuid it);
+        void DeleteRefundReference(ObjectGuid it);
 
         /// send initialization of new currency for client
         void SendNewCurrency(uint32 id) const;
@@ -1493,7 +1490,7 @@ class Player : public Unit, public GridObject<Player>
         void RemoveItemFromBuyBackSlot(uint32 slot, bool del);
         void SendEquipError(InventoryResult msg, Item* pItem, Item* pItem2 = NULL, uint32 itemid = 0);
         void SendBuyError(BuyResult msg, Creature* creature, uint32 item, uint32 param);
-        void SendSellError(SellResult msg, Creature* creature, uint64 guid);
+        void SendSellError(SellResult msg, Creature* creature, ObjectGuid guid);
         void AddWeaponProficiency(uint32 newflag) { m_WeaponProficiency |= newflag; }
         void AddArmorProficiency(uint32 newflag) { m_ArmorProficiency |= newflag; }
         uint32 GetWeaponProficiency() const { return m_WeaponProficiency; }
@@ -1501,8 +1498,8 @@ class Player : public Unit, public GridObject<Player>
         bool IsUseEquipedWeapon(bool mainhand) const;
         bool IsTwoHandUsed() const;
         void SendNewItem(Item* item, uint32 count, bool received, bool created, bool broadcast = false);
-        bool BuyItemFromVendorSlot(uint64 vendorguid, uint32 vendorslot, uint32 item, uint8 count, uint8 bag, uint8 slot);
-        bool BuyCurrencyFromVendorSlot(uint64 vendorGuid, uint32 vendorSlot, uint32 currency, uint32 count);
+        bool BuyItemFromVendorSlot(ObjectGuid vendorguid, uint32 vendorslot, uint32 item, uint8 count, uint8 bag, uint8 slot);
+        bool BuyCurrencyFromVendorSlot(ObjectGuid vendorGuid, uint32 vendorSlot, uint32 currency, uint32 count);
         bool _StoreOrEquipNewItem(uint32 vendorslot, uint32 item, uint8 count, uint8 bag, uint8 slot, int32 price, ItemTemplate const* pProto, Creature* pVendor, VendorItem const* crItem, bool bStore);
 
         float GetReputationPriceDiscount(Creature const* creature) const;
@@ -1554,10 +1551,10 @@ class Player : public Unit, public GridObject<Player>
 
         int32 GetQuestLevel(Quest const* quest) const { return quest && (quest->GetQuestLevel() > 0) ? quest->GetQuestLevel() : getLevel(); }
 
-        void PrepareQuestMenu(uint64 guid);
-        void SendPreparedQuest(uint64 guid);
+        void PrepareQuestMenu(ObjectGuid guid);
+        void SendPreparedQuest(ObjectGuid guid);
         bool IsActiveQuest(uint32 quest_id) const;
-        Quest const* GetNextQuest(uint64 guid, Quest const* quest);
+        Quest const* GetNextQuest(ObjectGuid guid, Quest const* quest);
         bool CanSeeStartQuest(Quest const* quest);
         bool CanTakeQuest(Quest const* quest, bool msg);
         bool CanAddQuest(Quest const* quest, bool msg);
@@ -1624,11 +1621,11 @@ class Player : public Unit, public GridObject<Player>
         void GroupEventHappens(uint32 questId, WorldObject const* pEventObject);
         void ItemAddedQuestCheck(uint32 entry, uint32 count);
         void ItemRemovedQuestCheck(uint32 entry, uint32 count);
-        void KilledMonster(CreatureTemplate const* cInfo, uint64 guid);
-        void KilledMonsterCredit(uint32 entry, uint64 guid = 0);
+        void KilledMonster(CreatureTemplate const* cInfo, ObjectGuid guid);
+        void KilledMonsterCredit(uint32 entry, ObjectGuid guid = ObjectGuid::Empty);
         void KilledPlayerCredit();
-        void KillCreditGO(uint32 entry, uint64 guid = 0);
-        void TalkedToCreature(uint32 entry, uint64 guid);
+        void KillCreditGO(uint32 entry, ObjectGuid guid = ObjectGuid::Empty);
+        void TalkedToCreature(uint32 entry, ObjectGuid guid);
         void MoneyChanged(uint32 value);
         void ReputationChanged(FactionEntry const* factionEntry);
         void ReputationChanged2(FactionEntry const* factionEntry);
@@ -1644,11 +1641,11 @@ class Player : public Unit, public GridObject<Player>
         void SendCanTakeQuestResponse(QuestFailedReason msg) const;
         void SendQuestConfirmAccept(Quest const* quest, Player* pReceiver);
         void SendPushToPartyResponse(Player* player, uint8 msg);
-        void SendQuestUpdateAddCreatureOrGo(Quest const* quest, uint64 guid, uint32 creatureOrGOIdx, uint16 oldCount, uint16 addCount);
+        void SendQuestUpdateAddCreatureOrGo(Quest const* quest, ObjectGuid guid, uint32 creatureOrGOIdx, uint16 oldCount, uint16 addCount);
         void SendQuestUpdateAddPlayer(Quest const* quest, uint16 oldCount, uint16 addCount);
 
-        uint64 GetDivider() const { return m_divider; }
-        void SetDivider(uint64 guid) { m_divider = guid; }
+        ObjectGuid GetDivider() const { return m_divider; }
+        void SetDivider(ObjectGuid guid) { m_divider = guid; }
 
         uint32 GetInGameTime() const { return m_ingametime; }
         void SetInGameTime(uint32 time) { m_ingametime = time; }
@@ -1673,15 +1670,15 @@ class Player : public Unit, public GridObject<Player>
         /***                   LOAD SYSTEM                     ***/
         /*********************************************************/
 
-        bool LoadFromDB(uint32 guid, SQLQueryHolder *holder);
-        bool isBeingLoaded() const override;
+        bool LoadFromDB(ObjectGuid guid, SQLQueryHolder *holder);
+        bool IsLoading() const override;
 
         void Initialize(uint32 guid);
         static uint32 GetUInt32ValueFromArray(Tokenizer const& data, uint16 index);
         static float  GetFloatValueFromArray(Tokenizer const& data, uint16 index);
-        static uint32 GetZoneIdFromDB(uint64 guid);
-        static uint32 GetLevelFromDB(uint64 guid);
-        static bool   LoadPositionFromDB(uint32& mapid, float& x, float& y, float& z, float& o, bool& in_flight, uint64 guid);
+        static uint32 GetZoneIdFromDB(ObjectGuid guid);
+        static uint32 GetLevelFromDB(ObjectGuid guid);
+        static bool   LoadPositionFromDB(uint32& mapid, float& x, float& y, float& z, float& o, bool& in_flight, ObjectGuid guid);
 
         static bool IsValidGender(uint8 Gender) { return Gender <= GENDER_FEMALE; }
         static bool IsValidClass(uint8 Class) { return ((1 << (Class - 1)) & CLASSMASK_ALL_PLAYABLE) != 0; }
@@ -1697,18 +1694,18 @@ class Player : public Unit, public GridObject<Player>
 
         static void SetUInt32ValueInArray(Tokenizer& data, uint16 index, uint32 value);
         static void SetFloatValueInArray(Tokenizer& data, uint16 index, float value);
-        static void Customize(uint64 guid, uint8 gender, uint8 skin, uint8 face, uint8 hairStyle, uint8 hairColor, uint8 facialHair);
-        static void SavePositionInDB(uint32 mapid, float x, float y, float z, float o, uint32 zone, uint64 guid);
+        static void Customize(ObjectGuid guid, uint8 gender, uint8 skin, uint8 face, uint8 hairStyle, uint8 hairColor, uint8 facialHair);
+        static void SavePositionInDB(uint32 mapid, float x, float y, float z, float o, uint32 zone, ObjectGuid guid);
 
-        static void DeleteFromDB(uint64 playerguid, uint32 accountId, bool updateRealmChars = true, bool deleteFinally = false);
+        static void DeleteFromDB(ObjectGuid playerguid, uint32 accountId, bool updateRealmChars = true, bool deleteFinally = false);
         static void DeleteOldCharacters();
         static void DeleteOldCharacters(uint32 keepDays);
 
         bool m_mailsLoaded;
         bool m_mailsUpdated;
 
-        void SetBindPoint(uint64 guid);
-        void SendTalentWipeConfirm(uint64 guid);
+        void SetBindPoint(ObjectGuid guid);
+        void SendTalentWipeConfirm(ObjectGuid guid);
         void ResetPetTalents();
         void CalcRage(uint32 damage, bool attacker);
         void RegenerateAll();
@@ -1732,11 +1729,11 @@ class Player : public Unit, public GridObject<Player>
         Unit* GetSelectedUnit() const;
         Player* GetSelectedPlayer() const;
 
-        void SetTarget(uint64 /*guid*/) override { } /// Used for serverside target changes, does not apply to players
-        void SetSelection(uint64 guid) { SetUInt64Value(UNIT_FIELD_TARGET, guid); }
+        void SetTarget(ObjectGuid /*guid*/) override { } /// Used for serverside target changes, does not apply to players
+        void SetSelection(ObjectGuid guid) { SetGuidValue(UNIT_FIELD_TARGET, guid); }
 
         uint8 GetComboPoints() const { return m_comboPoints; }
-        uint64 GetComboTarget() const { return m_comboTarget; }
+        ObjectGuid GetComboTarget() const { return m_comboTarget; }
 
         void AddComboPoints(Unit* target, int8 count, Spell* spell = NULL);
         void GainSpellComboPoints(int8 count);
@@ -1831,7 +1828,7 @@ class Player : public Unit, public GridObject<Player>
         void BuildPetTalentsInfoData(WorldPacket* data);
         void SendTalentsInfoData(bool pet);
         bool LearnTalent(uint32 talentId, uint32 talentRank);
-        void LearnPetTalent(uint64 petGuid, uint32 talentId, uint32 talentRank);
+        void LearnPetTalent(ObjectGuid petGuid, uint32 talentId, uint32 talentRank);
         bool AddTalent(uint32 spellId, uint8 spec, bool learning);
         bool HasTalent(uint32 spell_id, uint8 spec) const;
         uint32 CalculateTalentsPoints() const;
@@ -1950,7 +1947,7 @@ class Player : public Unit, public GridObject<Player>
         bool IsInSameGroupWith(Player const* p) const;
         bool IsInSameRaidWith(Player const* p) const;
         void UninviteFromGroup();
-        static void RemoveFromGroup(Group* group, uint64 guid, RemoveMethod method = GROUP_REMOVEMETHOD_DEFAULT, uint64 kicker = 0, const char* reason = NULL);
+        static void RemoveFromGroup(Group* group, ObjectGuid guid, RemoveMethod method = GROUP_REMOVEMETHOD_DEFAULT, ObjectGuid kicker = ObjectGuid::Empty, const char* reason = NULL);
         void RemoveFromGroup(RemoveMethod method = GROUP_REMOVEMETHOD_DEFAULT) { RemoveFromGroup(GetGroup(), GetGUID(), method); }
         void SendUpdateToOutOfRangeGroupMembers();
 
@@ -1962,16 +1959,16 @@ class Player : public Unit, public GridObject<Player>
         void SetGuildIdInvited(uint32 GuildId) { m_GuildIdInvited = GuildId; }
         uint32 GetGuildId() const { return GetUInt32Value(OBJECT_FIELD_DATA); /* return only lower part */ }
         Guild* GetGuild();
-        static uint32 GetGuildIdFromDB(uint64 guid);
-        static uint8 GetRankFromDB(uint64 guid);
+        static uint32 GetGuildIdFromDB(ObjectGuid guid);
+        static uint8 GetRankFromDB(ObjectGuid guid);
         int GetGuildIdInvited() { return m_GuildIdInvited; }
-        static void RemovePetitionsAndSigns(uint64 guid, uint32 type);
+        static void RemovePetitionsAndSigns(ObjectGuid guid, uint32 type);
 
         // Arena Team
         void SetInArenaTeam(uint32 ArenaTeamId, uint8 slot, uint8 type);
         void SetArenaTeamInfoField(uint8 slot, ArenaTeamInfoType type, uint32 value);
-        static uint32 GetArenaTeamIdFromDB(uint64 guid, uint8 slot);
-        static void LeaveAllArenaTeams(uint64 guid);
+        static uint32 GetArenaTeamIdFromDB(ObjectGuid guid, uint8 slot);
+        static void LeaveAllArenaTeams(ObjectGuid guid);
         uint32 GetArenaTeamId(uint8 slot) const { return GetUInt32Value(PLAYER_FIELD_ARENA_TEAM_INFO_1_1 + (slot * ARENA_TEAM_END) + ARENA_TEAM_ID); }
         uint32 GetArenaPersonalRating(uint8 slot) const { return GetUInt32Value(PLAYER_FIELD_ARENA_TEAM_INFO_1_1 + (slot * ARENA_TEAM_END) + ARENA_TEAM_PERSONAL_RATING); }
         void SetArenaTeamIdInvited(uint32 ArenaTeamId) { m_ArenaTeamIdInvited = ArenaTeamId; }
@@ -2048,8 +2045,8 @@ class Player : public Unit, public GridObject<Player>
         void UpdateRuneRegen(RuneType rune);
         void UpdateAllRunesRegen();
 
-        uint64 GetLootGUID() const { return m_lootGuid; }
-        void SetLootGUID(uint64 guid) { m_lootGuid = guid; }
+        ObjectGuid GetLootGUID() const { return m_lootGuid; }
+        void SetLootGUID(ObjectGuid guid) { m_lootGuid = guid; }
 
         void RemovedInsignia(Player* looterPlr);
 
@@ -2243,9 +2240,9 @@ class Player : public Unit, public GridObject<Player>
         PlayerMenu* PlayerTalkClass;
         std::vector<ItemSetEffect*> ItemSetEff;
 
-        void SendLoot(uint64 guid, LootType loot_type);
-        void SendLootError(uint64 guid, LootError error);
-        void SendLootRelease(uint64 guid);
+        void SendLoot(ObjectGuid guid, LootType loot_type);
+        void SendLootError(ObjectGuid guid, LootError error);
+        void SendLootRelease(ObjectGuid guid);
         void SendNotifyLootItemRemoved(uint8 lootSlot);
         void SendNotifyLootMoneyRemoved();
 
@@ -2379,8 +2376,7 @@ class Player : public Unit, public GridObject<Player>
         WorldLocation GetStartPosition() const;
 
         // currently visible objects at player client
-        typedef std::set<uint64> ClientGUIDs;
-        ClientGUIDs m_clientGUIDs;
+        GuidSet m_clientGUIDs;
 
         bool HaveAtClient(WorldObject const* u) const;
 
@@ -2539,9 +2535,9 @@ class Player : public Unit, public GridObject<Player>
         bool isDebugAreaTriggers;
 
         void ClearWhisperWhiteList() { WhisperList.clear(); }
-        void AddWhisperWhiteList(uint64 guid) { WhisperList.push_back(guid); }
-        bool IsInWhisperWhiteList(uint64 guid);
-        void RemoveFromWhisperWhiteList(uint64 guid) { WhisperList.remove(guid); }
+        void AddWhisperWhiteList(ObjectGuid guid) { WhisperList.push_back(guid); }
+        bool IsInWhisperWhiteList(ObjectGuid guid);
+        void RemoveFromWhisperWhiteList(ObjectGuid guid) { WhisperList.remove(guid); }
 
         void ReadMovementInfo(WorldPacket& data, MovementInfo* mi, Movement::ExtraMovementStatusElement* extras = NULL);
 
@@ -2559,8 +2555,6 @@ class Player : public Unit, public GridObject<Player>
         std::string GetMapAreaAndZoneString();
         std::string GetCoordsMapAreaAndZoneString();
 
-        bool IsLoading() const;
-
         // Void Storage
         bool IsVoidStorageUnlocked() const { return HasFlag(PLAYER_FLAGS, PLAYER_FLAGS_VOID_UNLOCKED); }
         void UnlockVoidStorage() { SetFlag(PLAYER_FLAGS, PLAYER_FLAGS_VOID_UNLOCKED); }
@@ -2576,7 +2570,7 @@ class Player : public Unit, public GridObject<Player>
 
     protected:
         // Gamemaster whisper whitelist
-        WhisperListContainer WhisperList;
+        GuidList WhisperList;
         uint32 m_regenTimerCount;
         uint32 m_holyPowerRegenTimerCount;
         uint32 m_focusRegenTimerCount;
@@ -2614,7 +2608,7 @@ class Player : public Unit, public GridObject<Player>
         QuestSet m_monthlyquests;
         SeasonalEventQuestMap m_seasonalquests;
 
-        uint64 m_divider;
+        ObjectGuid m_divider;
         uint32 m_ingametime;
 
         /*********************************************************/
@@ -2692,7 +2686,7 @@ class Player : public Unit, public GridObject<Player>
         time_t m_lastHonorUpdateTime;
 
         void outDebugValues() const;
-        uint64 m_lootGuid;
+        ObjectGuid m_lootGuid;
 
         uint32 m_team;
         uint32 m_nextSave;
@@ -2735,7 +2729,7 @@ class Player : public Unit, public GridObject<Player>
 
         uint32 m_ExtraFlags;
 
-        uint64 m_comboTarget;
+        ObjectGuid m_comboTarget;
         int8 m_comboPoints;
 
         QuestStatusMap m_QuestStatus;
@@ -2864,7 +2858,7 @@ class Player : public Unit, public GridObject<Player>
         Item* _StoreItem(uint16 pos, Item* pItem, uint32 count, bool clone, bool update);
         Item* _LoadItem(SQLTransaction& trans, uint32 zoneId, uint32 timeDiff, Field* fields);
 
-        std::set<uint32> m_refundableItems;
+        GuidSet m_refundableItems;
         void SendRefundInfo(Item* item);
         void RefundItem(Item* item);
         void SendItemRefundResult(Item* item, ItemExtendedCostEntry const* iece, uint8 error);
diff --git a/src/server/game/Entities/Player/SocialMgr.cpp b/src/server/game/Entities/Player/SocialMgr.cpp
index c351aeac482..af076b8a5fb 100644
--- a/src/server/game/Entities/Player/SocialMgr.cpp
+++ b/src/server/game/Entities/Player/SocialMgr.cpp
@@ -206,7 +206,7 @@ void SocialMgr::GetFriendInfo(Player* player, uint32 friendGUID, FriendInfo &fri
     friendInfo.Level = 0;
     friendInfo.Class = 0;
 
-    Player* target = ObjectAccessor::FindPlayer(friendGUID);
+    Player* target = ObjectAccessor::FindPlayer(ObjectGuid(HIGHGUID_PLAYER, friendGUID));
     if (!target)
         return;
 
@@ -291,10 +291,10 @@ void SocialMgr::BroadcastToFriendListers(Player* player, WorldPacket* packet)
     AccountTypes gmSecLevel = AccountTypes(sWorld->getIntConfig(CONFIG_GM_LEVEL_IN_WHO_LIST));
     for (SocialMap::const_iterator itr = m_socialMap.begin(); itr != m_socialMap.end(); ++itr)
     {
-        PlayerSocialMap::const_iterator itr2 = itr->second.m_playerSocialMap.find(player->GetGUID());
+        PlayerSocialMap::const_iterator itr2 = itr->second.m_playerSocialMap.find(player->GetGUIDLow());
         if (itr2 != itr->second.m_playerSocialMap.end() && (itr2->second.Flags & SOCIAL_FLAG_FRIEND))
         {
-            Player* target = ObjectAccessor::FindPlayer(MAKE_NEW_GUID(itr->first, 0, HIGHGUID_PLAYER));
+            Player* target = ObjectAccessor::FindPlayer(ObjectGuid(HIGHGUID_PLAYER, 0, itr->first));
             if (!target || !target->IsInWorld())
                 continue;
 
diff --git a/src/server/game/Entities/Totem/Totem.cpp b/src/server/game/Entities/Totem/Totem.cpp
index 92aa34371f8..be5236fbc2e 100644
--- a/src/server/game/Entities/Totem/Totem.cpp
+++ b/src/server/game/Entities/Totem/Totem.cpp
@@ -111,7 +111,7 @@ void Totem::UnSummon(uint32 msTime)
     {
         if (GetOwner()->m_SummonSlot[i] == GetGUID())
         {
-            GetOwner()->m_SummonSlot[i] = 0;
+            GetOwner()->m_SummonSlot[i].Clear();
             break;
         }
     }
diff --git a/src/server/game/Entities/Transport/Transport.cpp b/src/server/game/Entities/Transport/Transport.cpp
index 40e073a1500..52553e5f67b 100644
--- a/src/server/game/Entities/Transport/Transport.cpp
+++ b/src/server/game/Entities/Transport/Transport.cpp
@@ -619,7 +619,7 @@ bool Transport::TeleportTransport(uint32 newMapid, float x, float y, float z, fl
             switch (obj->GetTypeId())
             {
                 case TYPEID_UNIT:
-                    if (!IS_PLAYER_GUID(obj->ToUnit()->GetOwnerGUID()))  // pets should be teleported with player
+                    if (!obj->ToUnit()->GetOwnerGUID().IsPlayer())  // pets should be teleported with player
                         obj->ToCreature()->FarTeleportTo(newMap, destX, destY, destZ, destO);
                     break;
                 case TYPEID_GAMEOBJECT:
diff --git a/src/server/game/Entities/Unit/Unit.cpp b/src/server/game/Entities/Unit/Unit.cpp
index 13b2a602d31..01978027ff1 100644
--- a/src/server/game/Entities/Unit/Unit.cpp
+++ b/src/server/game/Entities/Unit/Unit.cpp
@@ -159,7 +159,7 @@ ProcEventInfo::ProcEventInfo(Unit* actor, Unit* actionTarget, Unit* procTarget,
 
 Unit::Unit(bool isWorldObject) :
     WorldObject(isWorldObject), m_movedPlayer(NULL), m_lastSanctuaryTime(0),
-    IsAIEnabled(false), NeedChangeAI(false), LastCharmerGUID(0),
+    IsAIEnabled(false), NeedChangeAI(false), LastCharmerGUID(),
     m_ControlledByPlayer(false), movespline(new Movement::MoveSpline()),
     i_AI(NULL), i_disabledAI(NULL), m_AutoRepeatFirstCast(false), m_procDeep(0),
     m_removedAurasCount(0), i_motionMaster(new MotionMaster(this)), m_regenTimer(0), m_ThreatManager(this),
@@ -190,10 +190,10 @@ Unit::Unit(bool isWorldObject) :
         m_currentSpells[i] = NULL;
 
     for (uint8 i = 0; i < MAX_SUMMON_SLOT; ++i)
-        m_SummonSlot[i] = 0;
+        m_SummonSlot[i].Clear();
 
     for (uint8 i = 0; i < MAX_GAMEOBJECT_SLOT; ++i)
-        m_ObjectSlot[i] = 0;
+        m_ObjectSlot[i].Clear();
 
     m_auraUpdateIterator = m_ownedAuras.end();
 
@@ -652,7 +652,7 @@ uint32 Unit::DealDamage(Unit* victim, uint32 damage, CleanDamage const* cleanDam
     TC_LOG_DEBUG("entities.unit", "DealDamageStart");
 
     uint32 health = victim->GetHealth();
-    TC_LOG_DEBUG("entities.unit", "Unit " UI64FMTD " dealt %u damage to unit " UI64FMTD, GetGUID(), damage, victim->GetGUID());
+    TC_LOG_DEBUG("entities.unit", "%s dealt %u damage to %s", GetGUID().ToString().c_str(), damage, victim->GetGUID().ToString().c_str());
 
     // duel ends when player has 1 or less hp
     bool duel_hasEnded = false;
@@ -816,7 +816,7 @@ void Unit::CastStop(uint32 except_spellid)
             InterruptSpell(CurrentSpellTypes(i), false);
 }
 
-void Unit::CastSpell(SpellCastTargets const& targets, SpellInfo const* spellInfo, CustomSpellValues const* value, TriggerCastFlags triggerFlags, Item* castItem, AuraEffect const* triggeredByAura, uint64 originalCaster)
+void Unit::CastSpell(SpellCastTargets const& targets, SpellInfo const* spellInfo, CustomSpellValues const* value, TriggerCastFlags triggerFlags, Item* castItem, AuraEffect const* triggeredByAura, ObjectGuid originalCaster)
 {
     if (!spellInfo)
     {
@@ -838,12 +838,12 @@ void Unit::CastSpell(SpellCastTargets const& targets, SpellInfo const* spellInfo
     spell->prepare(&targets, triggeredByAura);
 }
 
-void Unit::CastSpell(Unit* victim, uint32 spellId, bool triggered, Item* castItem, AuraEffect const* triggeredByAura, uint64 originalCaster)
+void Unit::CastSpell(Unit* victim, uint32 spellId, bool triggered, Item* castItem, AuraEffect const* triggeredByAura, ObjectGuid originalCaster)
 {
     CastSpell(victim, spellId, triggered ? TRIGGERED_FULL_MASK : TRIGGERED_NONE, castItem, triggeredByAura, originalCaster);
 }
 
-void Unit::CastSpell(Unit* victim, uint32 spellId, TriggerCastFlags triggerFlags /*= TRIGGER_NONE*/, Item* castItem /*= NULL*/, AuraEffect const* triggeredByAura /*= NULL*/, uint64 originalCaster /*= 0*/)
+void Unit::CastSpell(Unit* victim, uint32 spellId, TriggerCastFlags triggerFlags /*= TRIGGER_NONE*/, Item* castItem /*= NULL*/, AuraEffect const* triggeredByAura /*= NULL*/, ObjectGuid originalCaster /*= ObjectGuid::Empty*/)
 {
     SpellInfo const* spellInfo = sSpellMgr->GetSpellInfo(spellId);
     if (!spellInfo)
@@ -855,19 +855,19 @@ void Unit::CastSpell(Unit* victim, uint32 spellId, TriggerCastFlags triggerFlags
     CastSpell(victim, spellInfo, triggerFlags, castItem, triggeredByAura, originalCaster);
 }
 
-void Unit::CastSpell(Unit* victim, SpellInfo const* spellInfo, bool triggered, Item* castItem/*= NULL*/, AuraEffect const* triggeredByAura /*= NULL*/, uint64 originalCaster /*= 0*/)
+void Unit::CastSpell(Unit* victim, SpellInfo const* spellInfo, bool triggered, Item* castItem/*= NULL*/, AuraEffect const* triggeredByAura /*= NULL*/, ObjectGuid originalCaster /*= ObjectGuid::Empty*/)
 {
     CastSpell(victim, spellInfo, triggered ? TRIGGERED_FULL_MASK : TRIGGERED_NONE, castItem, triggeredByAura, originalCaster);
 }
 
-void Unit::CastSpell(Unit* victim, SpellInfo const* spellInfo, TriggerCastFlags triggerFlags, Item* castItem, AuraEffect const* triggeredByAura, uint64 originalCaster)
+void Unit::CastSpell(Unit* victim, SpellInfo const* spellInfo, TriggerCastFlags triggerFlags, Item* castItem, AuraEffect const* triggeredByAura, ObjectGuid originalCaster)
 {
     SpellCastTargets targets;
     targets.SetUnitTarget(victim);
     CastSpell(targets, spellInfo, NULL, triggerFlags, castItem, triggeredByAura, originalCaster);
 }
 
-void Unit::CastCustomSpell(Unit* target, uint32 spellId, int32 const* bp0, int32 const* bp1, int32 const* bp2, bool triggered, Item* castItem, AuraEffect const* triggeredByAura, uint64 originalCaster)
+void Unit::CastCustomSpell(Unit* target, uint32 spellId, int32 const* bp0, int32 const* bp1, int32 const* bp2, bool triggered, Item* castItem, AuraEffect const* triggeredByAura, ObjectGuid originalCaster)
 {
     CustomSpellValues values;
     if (bp0)
@@ -879,21 +879,21 @@ void Unit::CastCustomSpell(Unit* target, uint32 spellId, int32 const* bp0, int32
     CastCustomSpell(spellId, values, target, triggered ? TRIGGERED_FULL_MASK : TRIGGERED_NONE, castItem, triggeredByAura, originalCaster);
 }
 
-void Unit::CastCustomSpell(uint32 spellId, SpellValueMod mod, int32 value, Unit* target, bool triggered, Item* castItem, AuraEffect const* triggeredByAura, uint64 originalCaster)
+void Unit::CastCustomSpell(uint32 spellId, SpellValueMod mod, int32 value, Unit* target, bool triggered, Item* castItem, AuraEffect const* triggeredByAura, ObjectGuid originalCaster)
 {
     CustomSpellValues values;
     values.AddSpellMod(mod, value);
     CastCustomSpell(spellId, values, target, triggered ? TRIGGERED_FULL_MASK : TRIGGERED_NONE, castItem, triggeredByAura, originalCaster);
 }
 
-void Unit::CastCustomSpell(uint32 spellId, SpellValueMod mod, int32 value, Unit* target, TriggerCastFlags triggerFlags, Item* castItem, AuraEffect const* triggeredByAura, uint64 originalCaster)
+void Unit::CastCustomSpell(uint32 spellId, SpellValueMod mod, int32 value, Unit* target, TriggerCastFlags triggerFlags, Item* castItem, AuraEffect const* triggeredByAura, ObjectGuid originalCaster)
 {
     CustomSpellValues values;
     values.AddSpellMod(mod, value);
     CastCustomSpell(spellId, values, target, triggerFlags, castItem, triggeredByAura, originalCaster);
 }
 
-void Unit::CastCustomSpell(uint32 spellId, CustomSpellValues const& value, Unit* victim, TriggerCastFlags triggerFlags, Item* castItem, AuraEffect const* triggeredByAura, uint64 originalCaster)
+void Unit::CastCustomSpell(uint32 spellId, CustomSpellValues const& value, Unit* victim, TriggerCastFlags triggerFlags, Item* castItem, AuraEffect const* triggeredByAura, ObjectGuid originalCaster)
 {
     SpellInfo const* spellInfo = sSpellMgr->GetSpellInfo(spellId);
     if (!spellInfo)
@@ -907,7 +907,7 @@ void Unit::CastCustomSpell(uint32 spellId, CustomSpellValues const& value, Unit*
     CastSpell(targets, spellInfo, &value, triggerFlags, castItem, triggeredByAura, originalCaster);
 }
 
-void Unit::CastSpell(float x, float y, float z, uint32 spellId, bool triggered, Item* castItem, AuraEffect const* triggeredByAura, uint64 originalCaster)
+void Unit::CastSpell(float x, float y, float z, uint32 spellId, bool triggered, Item* castItem, AuraEffect const* triggeredByAura, ObjectGuid originalCaster)
 {
     SpellInfo const* spellInfo = sSpellMgr->GetSpellInfo(spellId);
     if (!spellInfo)
@@ -921,7 +921,7 @@ void Unit::CastSpell(float x, float y, float z, uint32 spellId, bool triggered,
     CastSpell(targets, spellInfo, NULL, triggered ? TRIGGERED_FULL_MASK : TRIGGERED_NONE, castItem, triggeredByAura, originalCaster);
 }
 
-void Unit::CastSpell(GameObject* go, uint32 spellId, bool triggered, Item* castItem, AuraEffect* triggeredByAura, uint64 originalCaster)
+void Unit::CastSpell(GameObject* go, uint32 spellId, bool triggered, Item* castItem, AuraEffect* triggeredByAura, ObjectGuid originalCaster)
 {
     SpellInfo const* spellInfo = sSpellMgr->GetSpellInfo(spellId);
     if (!spellInfo)
@@ -2122,9 +2122,9 @@ void Unit::SendMeleeAttackStart(Unit* victim)
 void Unit::SendMeleeAttackStop(Unit* victim)
 {
     WorldPacket data(SMSG_ATTACKSTOP, (8+8+4));
-    data.append(GetPackGUID());
+    data << GetPackGUID();
     if (victim)
-        data.append(victim->GetPackGUID());
+        data << victim->GetPackGUID();
     else
         data << uint8(0);
 
@@ -2694,7 +2694,7 @@ void Unit::_UpdateSpells(uint32 time)
         {
             if (!(*itr)->isSpawned())
             {
-                (*itr)->SetOwnerGUID(0);
+                (*itr)->SetOwnerGUID(ObjectGuid::Empty);
                 (*itr)->SetRespawnTime(0);
                 (*itr)->Delete();
                 m_gameObj.erase(itr++);
@@ -2994,7 +2994,7 @@ void Unit::DeMorph()
     SetDisplayId(GetNativeDisplayId());
 }
 
-Aura* Unit::_TryStackingOrRefreshingExistingAura(SpellInfo const* newAura, uint8 effMask, Unit* caster, int32* baseAmount /*= NULL*/, Item* castItem /*= NULL*/, uint64 casterGUID /*= 0*/)
+Aura* Unit::_TryStackingOrRefreshingExistingAura(SpellInfo const* newAura, uint8 effMask, Unit* caster, int32* baseAmount /*= NULL*/, Item* castItem /*= NULL*/, ObjectGuid casterGUID /*= 0*/)
 {
     ASSERT(casterGUID || caster);
 
@@ -3006,12 +3006,12 @@ Aura* Unit::_TryStackingOrRefreshingExistingAura(SpellInfo const* newAura, uint8
     if (!newAura->IsMultiSlotAura())
     {
         // check if cast item changed
-        uint64 castItemGUID = 0;
+        ObjectGuid castItemGUID;
         if (castItem)
             castItemGUID = castItem->GetGUID();
 
         // find current aura from spell and change it's stackamount, or refresh it's duration
-        if (Aura* foundAura = GetOwnedAura(newAura->Id, casterGUID, (newAura->AttributesCu & SPELL_ATTR0_CU_ENCHANT_PROC) ? castItemGUID : 0, 0))
+        if (Aura* foundAura = GetOwnedAura(newAura->Id, casterGUID, (newAura->AttributesCu & SPELL_ATTR0_CU_ENCHANT_PROC) ? castItemGUID : ObjectGuid::Empty, 0))
         {
             // effect masks do not match
             // extremely rare case
@@ -3038,7 +3038,7 @@ Aura* Unit::_TryStackingOrRefreshingExistingAura(SpellInfo const* newAura, uint8
             // correct cast item guid if needed
             if (castItemGUID != foundAura->GetCastItemGUID())
             {
-                uint64* oldGUID = const_cast<uint64 *>(&foundAura->m_castItemGuid);
+                ObjectGuid* oldGUID = const_cast<ObjectGuid*>(&foundAura->m_castItemGuid);
                 *oldGUID = castItemGUID;
             }
 
@@ -3065,7 +3065,7 @@ void Unit::_AddAura(UnitAura* aura, Unit* caster)
     if (aura->IsSingleTarget())
     {
         ASSERT((IsInWorld() && !IsDuringRemoveFromWorld()) || (aura->GetCasterGUID() == GetGUID()) ||
-                (isBeingLoaded() && aura->HasEffectType(SPELL_AURA_CONTROL_VEHICLE)));
+                (IsLoading() && aura->HasEffectType(SPELL_AURA_CONTROL_VEHICLE)));
                 /* @HACK: Player is not in world during loading auras.
                  *        Single target auras are not saved or loaded from database
                  *        but may be created as a result of aura links (player mounts with passengers)
@@ -3347,7 +3347,7 @@ void Unit::RemoveOwnedAura(AuraMap::iterator &i, AuraRemoveMode removeMode)
     i = m_ownedAuras.begin();
 }
 
-void Unit::RemoveOwnedAura(uint32 spellId, uint64 casterGUID, uint8 reqEffMask, AuraRemoveMode removeMode)
+void Unit::RemoveOwnedAura(uint32 spellId, ObjectGuid casterGUID, uint8 reqEffMask, AuraRemoveMode removeMode)
 {
     for (AuraMap::iterator itr = m_ownedAuras.lower_bound(spellId); itr != m_ownedAuras.upper_bound(spellId);)
         if (((itr->second->GetEffectMask() & reqEffMask) == reqEffMask) && (!casterGUID || itr->second->GetCasterGUID() == casterGUID))
@@ -3381,7 +3381,7 @@ void Unit::RemoveOwnedAura(Aura* aura, AuraRemoveMode removeMode)
     ASSERT(false);
 }
 
-Aura* Unit::GetOwnedAura(uint32 spellId, uint64 casterGUID, uint64 itemCasterGUID, uint8 reqEffMask, Aura* except) const
+Aura* Unit::GetOwnedAura(uint32 spellId, ObjectGuid casterGUID, ObjectGuid itemCasterGUID, uint8 reqEffMask, Aura* except) const
 {
     AuraMapBounds range = m_ownedAuras.equal_range(spellId);
     for (AuraMap::const_iterator itr = range.first; itr != range.second; ++itr)
@@ -3410,7 +3410,7 @@ void Unit::RemoveAura(AuraApplicationMap::iterator &i, AuraRemoveMode mode)
         aura->Remove(mode);
 }
 
-void Unit::RemoveAura(uint32 spellId, uint64 caster, uint8 reqEffMask, AuraRemoveMode removeMode)
+void Unit::RemoveAura(uint32 spellId, ObjectGuid caster, uint8 reqEffMask, AuraRemoveMode removeMode)
 {
     AuraApplicationMapBoundsNonConst range = m_appliedAuras.equal_range(spellId);
     for (AuraApplicationMap::iterator iter = range.first; iter != range.second;)
@@ -3470,7 +3470,7 @@ void Unit::RemoveAura(Aura* aura, AuraRemoveMode mode)
         RemoveAura(aurApp, mode);
 }
 
-void Unit::RemoveAurasDueToSpell(uint32 spellId, uint64 casterGUID, uint8 reqEffMask, AuraRemoveMode removeMode)
+void Unit::RemoveAurasDueToSpell(uint32 spellId, ObjectGuid casterGUID, uint8 reqEffMask, AuraRemoveMode removeMode)
 {
     for (AuraApplicationMap::iterator iter = m_appliedAuras.lower_bound(spellId); iter != m_appliedAuras.upper_bound(spellId);)
     {
@@ -3486,7 +3486,7 @@ void Unit::RemoveAurasDueToSpell(uint32 spellId, uint64 casterGUID, uint8 reqEff
     }
 }
 
-void Unit::RemoveAuraFromStack(uint32 spellId, uint64 casterGUID, AuraRemoveMode removeMode)
+void Unit::RemoveAuraFromStack(uint32 spellId, ObjectGuid casterGUID, AuraRemoveMode removeMode)
 {
     AuraMapBoundsNonConst range = m_ownedAuras.equal_range(spellId);
     for (AuraMap::iterator iter = range.first; iter != range.second;)
@@ -3503,7 +3503,7 @@ void Unit::RemoveAuraFromStack(uint32 spellId, uint64 casterGUID, AuraRemoveMode
     }
 }
 
-void Unit::RemoveAurasDueToSpellByDispel(uint32 spellId, uint32 dispellerSpellId, uint64 casterGUID, Unit* dispeller, uint8 chargesRemoved/*= 1*/)
+void Unit::RemoveAurasDueToSpellByDispel(uint32 spellId, uint32 dispellerSpellId, ObjectGuid casterGUID, Unit* dispeller, uint8 chargesRemoved/*= 1*/)
 {
     AuraMapBoundsNonConst range = m_ownedAuras.equal_range(spellId);
     for (AuraMap::iterator iter = range.first; iter != range.second;)
@@ -3531,7 +3531,7 @@ void Unit::RemoveAurasDueToSpellByDispel(uint32 spellId, uint32 dispellerSpellId
     }
 }
 
-void Unit::RemoveAurasDueToSpellBySteal(uint32 spellId, uint64 casterGUID, Unit* stealer)
+void Unit::RemoveAurasDueToSpellBySteal(uint32 spellId, ObjectGuid casterGUID, Unit* stealer)
 {
     AuraMapBoundsNonConst range = m_ownedAuras.equal_range(spellId);
     for (AuraMap::iterator iter = range.first; iter != range.second;)
@@ -3607,7 +3607,7 @@ void Unit::RemoveAurasDueToSpellBySteal(uint32 spellId, uint64 casterGUID, Unit*
     }
 }
 
-void Unit::RemoveAurasDueToItemSpell(uint32 spellId, uint64 castItemGuid)
+void Unit::RemoveAurasDueToItemSpell(uint32 spellId, ObjectGuid castItemGuid)
 {
     for (AuraApplicationMap::iterator iter = m_appliedAuras.lower_bound(spellId); iter != m_appliedAuras.upper_bound(spellId);)
     {
@@ -3621,7 +3621,7 @@ void Unit::RemoveAurasDueToItemSpell(uint32 spellId, uint64 castItemGuid)
     }
 }
 
-void Unit::RemoveAurasByType(AuraType auraType, uint64 casterGUID, Aura* except, bool negative, bool positive)
+void Unit::RemoveAurasByType(AuraType auraType, ObjectGuid casterGUID, Aura* except, bool negative, bool positive)
 {
     for (AuraEffectList::iterator iter = m_modAuras[auraType].begin(); iter != m_modAuras[auraType].end();)
     {
@@ -3724,7 +3724,7 @@ void Unit::RemoveAurasWithInterruptFlags(uint32 flag, uint32 except)
     UpdateInterruptMask();
 }
 
-void Unit::RemoveAurasWithFamily(SpellFamilyNames family, uint32 familyFlag1, uint32 familyFlag2, uint32 familyFlag3, uint64 casterGUID)
+void Unit::RemoveAurasWithFamily(SpellFamilyNames family, uint32 familyFlag1, uint32 familyFlag2, uint32 familyFlag3, ObjectGuid casterGUID)
 {
     for (AuraApplicationMap::iterator iter = m_appliedAuras.begin(); iter != m_appliedAuras.end();)
     {
@@ -3916,7 +3916,7 @@ void Unit::RemoveAllAurasExceptType(AuraType type1, AuraType type2)
     }
 }
 
-void Unit::DelayOwnedAuras(uint32 spellId, uint64 caster, int32 delaytime)
+void Unit::DelayOwnedAuras(uint32 spellId, ObjectGuid caster, int32 delaytime)
 {
     AuraMapBoundsNonConst range = m_ownedAuras.equal_range(spellId);
     for (; range.first != range.second; ++range.first)
@@ -3948,7 +3948,7 @@ void Unit::_ApplyAllAuraStatMods()
         (*i).second->GetBase()->HandleAllEffects(i->second, AURA_EFFECT_HANDLE_STAT, true);
 }
 
-AuraEffect* Unit::GetAuraEffect(uint32 spellId, uint8 effIndex, uint64 caster) const
+AuraEffect* Unit::GetAuraEffect(uint32 spellId, uint8 effIndex, ObjectGuid caster) const
 {
     AuraApplicationMapBounds range = m_appliedAuras.equal_range(spellId);
     for (AuraApplicationMap::const_iterator itr = range.first; itr != range.second; ++itr)
@@ -3962,7 +3962,7 @@ AuraEffect* Unit::GetAuraEffect(uint32 spellId, uint8 effIndex, uint64 caster) c
     return NULL;
 }
 
-AuraEffect* Unit::GetAuraEffectOfRankedSpell(uint32 spellId, uint8 effIndex, uint64 caster) const
+AuraEffect* Unit::GetAuraEffectOfRankedSpell(uint32 spellId, uint8 effIndex, ObjectGuid caster) const
 {
     uint32 rankSpell = sSpellMgr->GetFirstSpellInChain(spellId);
     while (rankSpell)
@@ -3988,7 +3988,7 @@ AuraEffect* Unit::GetAuraEffect(AuraType type, SpellFamilyNames name, uint32 ico
     return NULL;
 }
 
-AuraEffect* Unit::GetAuraEffect(AuraType type, SpellFamilyNames family, uint32 familyFlag1, uint32 familyFlag2, uint32 familyFlag3, uint64 casterGUID) const
+AuraEffect* Unit::GetAuraEffect(AuraType type, SpellFamilyNames family, uint32 familyFlag1, uint32 familyFlag2, uint32 familyFlag3, ObjectGuid casterGUID) const
 {
     AuraEffectList const& auras = GetAuraEffectsByType(type);
     for (AuraEffectList::const_iterator i = auras.begin(); i != auras.end(); ++i)
@@ -4009,7 +4009,7 @@ AuraEffect* Unit::GetDummyAuraEffect(SpellFamilyNames name, uint32 iconId, uint8
     return GetAuraEffect(SPELL_AURA_DUMMY, name, iconId, effIndex);
 }
 
-AuraApplication * Unit::GetAuraApplication(uint32 spellId, uint64 casterGUID, uint64 itemCasterGUID, uint8 reqEffMask, AuraApplication * except) const
+AuraApplication * Unit::GetAuraApplication(uint32 spellId, ObjectGuid casterGUID, ObjectGuid itemCasterGUID, uint8 reqEffMask, AuraApplication * except) const
 {
     AuraApplicationMapBounds range = m_appliedAuras.equal_range(spellId);
     for (; range.first != range.second; ++range.first)
@@ -4028,13 +4028,13 @@ AuraApplication * Unit::GetAuraApplication(uint32 spellId, uint64 casterGUID, ui
     return NULL;
 }
 
-Aura* Unit::GetAura(uint32 spellId, uint64 casterGUID, uint64 itemCasterGUID, uint8 reqEffMask) const
+Aura* Unit::GetAura(uint32 spellId, ObjectGuid casterGUID, ObjectGuid itemCasterGUID, uint8 reqEffMask) const
 {
     AuraApplication * aurApp = GetAuraApplication(spellId, casterGUID, itemCasterGUID, reqEffMask);
     return aurApp ? aurApp->GetBase() : NULL;
 }
 
-AuraApplication * Unit::GetAuraApplicationOfRankedSpell(uint32 spellId, uint64 casterGUID, uint64 itemCasterGUID, uint8 reqEffMask, AuraApplication* except) const
+AuraApplication * Unit::GetAuraApplicationOfRankedSpell(uint32 spellId, ObjectGuid casterGUID, ObjectGuid itemCasterGUID, uint8 reqEffMask, AuraApplication* except) const
 {
     uint32 rankSpell = sSpellMgr->GetFirstSpellInChain(spellId);
     while (rankSpell)
@@ -4046,7 +4046,7 @@ AuraApplication * Unit::GetAuraApplicationOfRankedSpell(uint32 spellId, uint64 c
     return NULL;
 }
 
-Aura* Unit::GetAuraOfRankedSpell(uint32 spellId, uint64 casterGUID, uint64 itemCasterGUID, uint8 reqEffMask) const
+Aura* Unit::GetAuraOfRankedSpell(uint32 spellId, ObjectGuid casterGUID, ObjectGuid itemCasterGUID, uint8 reqEffMask) const
 {
     AuraApplication * aurApp = GetAuraApplicationOfRankedSpell(spellId, casterGUID, itemCasterGUID, reqEffMask);
     return aurApp ? aurApp->GetBase() : NULL;
@@ -4091,7 +4091,7 @@ void Unit::GetDispellableAuraList(Unit* caster, uint32 dispelMask, DispelCharges
     }
 }
 
-bool Unit::HasAuraEffect(uint32 spellId, uint8 effIndex, uint64 caster) const
+bool Unit::HasAuraEffect(uint32 spellId, uint8 effIndex, ObjectGuid caster) const
 {
     AuraApplicationMapBounds range = m_appliedAuras.equal_range(spellId);
     for (AuraApplicationMap::const_iterator itr = range.first; itr != range.second; ++itr)
@@ -4121,7 +4121,7 @@ uint32 Unit::GetAuraCount(uint32 spellId) const
     return count;
 }
 
-bool Unit::HasAura(uint32 spellId, uint64 casterGUID, uint64 itemCasterGUID, uint8 reqEffMask) const
+bool Unit::HasAura(uint32 spellId, ObjectGuid casterGUID, ObjectGuid itemCasterGUID, uint8 reqEffMask) const
 {
     if (GetAuraApplication(spellId, casterGUID, itemCasterGUID, reqEffMask))
         return true;
@@ -4133,7 +4133,7 @@ bool Unit::HasAuraType(AuraType auraType) const
     return (!m_modAuras[auraType].empty());
 }
 
-bool Unit::HasAuraTypeWithCaster(AuraType auratype, uint64 caster) const
+bool Unit::HasAuraTypeWithCaster(AuraType auratype, ObjectGuid caster) const
 {
     AuraEffectList const& mTotalAuraList = GetAuraEffectsByType(auratype);
     for (AuraEffectList::const_iterator i = mTotalAuraList.begin(); i != mTotalAuraList.end(); ++i)
@@ -4169,7 +4169,7 @@ bool Unit::HasAuraTypeWithValue(AuraType auratype, int32 value) const
     return false;
 }
 
-bool Unit::HasNegativeAuraWithInterruptFlag(uint32 flag, uint64 guid) const
+bool Unit::HasNegativeAuraWithInterruptFlag(uint32 flag, ObjectGuid guid) const
 {
     if (!(m_interruptMask & flag))
         return false;
@@ -4181,7 +4181,7 @@ bool Unit::HasNegativeAuraWithInterruptFlag(uint32 flag, uint64 guid) const
     return false;
 }
 
-bool Unit::HasNegativeAuraWithAttribute(uint32 flag, uint64 guid) const
+bool Unit::HasNegativeAuraWithAttribute(uint32 flag, ObjectGuid guid) const
 {
     for (AuraApplicationMap::const_iterator iter = m_appliedAuras.begin(); iter != m_appliedAuras.end(); ++iter)
     {
@@ -4221,7 +4221,7 @@ AuraEffect* Unit::IsScriptOverriden(SpellInfo const* spell, int32 script) const
     return NULL;
 }
 
-uint32 Unit::GetDiseasesByCaster(uint64 casterGUID, bool remove)
+uint32 Unit::GetDiseasesByCaster(ObjectGuid casterGUID, bool remove)
 {
     static const AuraType diseaseAuraTypes[] =
     {
@@ -4254,7 +4254,7 @@ uint32 Unit::GetDiseasesByCaster(uint64 casterGUID, bool remove)
     return diseases;
 }
 
-uint32 Unit::GetDoTsByCaster(uint64 casterGUID) const
+uint32 Unit::GetDoTsByCaster(ObjectGuid casterGUID) const
 {
     static const AuraType diseaseAuraTypes[] =
     {
@@ -4630,7 +4630,7 @@ GameObject* Unit::GetGameObject(uint32 spellId) const
 
 void Unit::AddGameObject(GameObject* gameObj)
 {
-    if (!gameObj || gameObj->GetOwnerGUID() != 0)
+    if (!gameObj || gameObj->GetOwnerGUID())
         return;
 
     m_gameObj.push_back(gameObj);
@@ -4651,13 +4651,13 @@ void Unit::RemoveGameObject(GameObject* gameObj, bool del)
     if (!gameObj || gameObj->GetOwnerGUID() != GetGUID())
         return;
 
-    gameObj->SetOwnerGUID(0);
+    gameObj->SetOwnerGUID(ObjectGuid::Empty);
 
     for (uint8 i = 0; i < MAX_GAMEOBJECT_SLOT; ++i)
     {
         if (m_ObjectSlot[i] == gameObj->GetGUID())
         {
-            m_ObjectSlot[i] = 0;
+            m_ObjectSlot[i].Clear();
             break;
         }
     }
@@ -4696,7 +4696,7 @@ void Unit::RemoveGameObject(uint32 spellid, bool del)
         next = i;
         if (spellid == 0 || (*i)->GetSpellId() == spellid)
         {
-            (*i)->SetOwnerGUID(0);
+            (*i)->SetOwnerGUID(ObjectGuid::Empty);
             if (del)
             {
                 (*i)->SetRespawnTime(0);
@@ -4716,7 +4716,7 @@ void Unit::RemoveAllGameObjects()
     while (!m_gameObj.empty())
     {
         GameObjectList::iterator i = m_gameObj.begin();
-        (*i)->SetOwnerGUID(0);
+        (*i)->SetOwnerGUID(ObjectGuid::Empty);
         (*i)->SetRespawnTime(0);
         (*i)->Delete();
         m_gameObj.erase(i);
@@ -4726,8 +4726,8 @@ void Unit::RemoveAllGameObjects()
 void Unit::SendSpellNonMeleeDamageLog(SpellNonMeleeDamage* log)
 {
     WorldPacket data(SMSG_SPELLNONMELEEDAMAGELOG, (16+4+4+4+1+4+4+1+1+4+4+1)); // we guess size
-    data.append(log->target->GetPackGUID());
-    data.append(log->attacker->GetPackGUID());
+    data << log->target->GetPackGUID();
+    data << log->attacker->GetPackGUID();
     data << uint32(log->SpellID);
     data << uint32(log->damage);                            // damage amount
     int32 overkill = log->damage - log->target->GetHealth();
@@ -4773,8 +4773,8 @@ void Unit::SendPeriodicAuraLog(SpellPeriodicAuraLogInfo* pInfo)
     AuraEffect const* aura = pInfo->auraEff;
 
     WorldPacket data(SMSG_PERIODICAURALOG, 30);
-    data.append(GetPackGUID());
-    data.appendPackGUID(aura->GetCasterGUID());
+    data << GetPackGUID();
+    data << aura->GetCasterGUID().WriteAsPacked();
     data << uint32(aura->GetId());                          // spellId
     data << uint32(1);                                      // count
     data << uint32(aura->GetAuraType());                    // auraId
@@ -4856,8 +4856,8 @@ void Unit::SendAttackStateUpdate(CalcDamageInfo* damageInfo)
     size_t maxsize = 4+5+5+4+4+1+4+4+4+4+4+1+4+4+4+4+4*12;
     WorldPacket data(SMSG_ATTACKERSTATEUPDATE, maxsize);    // we guess size
     data << uint32(damageInfo->HitInfo);
-    data.append(damageInfo->attacker->GetPackGUID());
-    data.append(damageInfo->target->GetPackGUID());
+    data << damageInfo->attacker->GetPackGUID();
+    data << damageInfo->target->GetPackGUID();
     data << uint32(damageInfo->damage);                     // Full damage
     int32 overkill = damageInfo->damage - damageInfo->target->GetHealth();
     data << uint32(overkill < 0 ? 0 : overkill);            // Overkill
@@ -5072,7 +5072,7 @@ bool Unit::HandleDummyAuraProc(Unit* victim, uint32 damage, AuraEffect* triggere
                                   // otherwise, it's the triggered_spell_id by default
     Unit* target = victim;
     int32 basepoints0 = 0;
-    uint64 originalCaster = 0;
+    ObjectGuid originalCaster;
 
     switch (dummySpell->SpellFamilyName)
     {
@@ -6925,9 +6925,9 @@ bool Unit::HandleProcTriggerSpell(Unit* victim, uint32 damage, AuraEffect* trigg
             float averageDmg = 0;
             // now compute approximate weapon damage by formula from wowwiki.com
             if (procFlags & PROC_FLAG_DONE_OFFHAND_ATTACK)
-                averageDmg = (GetFloatValue(UNIT_FIELD_MINOFFHANDDAMAGE) + GetFloatValue(UNIT_FIELD_MAXOFFHANDDAMAGE)) / 2;
+                averageDmg = (GetFloatValue(UNIT_FIELD_MINOFFHANDDAMAGE) + GetFloatValue(UNIT_FIELD_MAXOFFHANDDAMAGE)) / 2.f;
             else
-                averageDmg = (GetFloatValue(UNIT_FIELD_MINDAMAGE) + GetFloatValue(UNIT_FIELD_MAXDAMAGE)) / 2;
+                averageDmg = (GetFloatValue(UNIT_FIELD_MINDAMAGE) + GetFloatValue(UNIT_FIELD_MAXDAMAGE)) / 2.f;
 
             basepoints0 = int32(averageDmg);
             break;
@@ -7250,19 +7250,12 @@ FactionTemplateEntry const* Unit::GetFactionTemplateEntry() const
     FactionTemplateEntry const* entry = sFactionTemplateStore.LookupEntry(getFaction());
     if (!entry)
     {
-        static uint64 guid = 0;                             // prevent repeating spam same faction problem
-
-        if (GetGUID() != guid)
-        {
-            if (Player const* player = ToPlayer())
-                TC_LOG_ERROR("entities.unit", "Player %s has invalid faction (faction template id) #%u", player->GetName().c_str(), getFaction());
-            else if (Creature const* creature = ToCreature())
-                TC_LOG_ERROR("entities.unit", "Creature (template id: %u) has invalid faction (faction template id) #%u", creature->GetCreatureTemplate()->Entry, getFaction());
-            else
-                TC_LOG_ERROR("entities.unit", "Unit (name=%s, type=%u) has invalid faction (faction template id) #%u", GetName().c_str(), uint32(GetTypeId()), getFaction());
-
-            guid = GetGUID();
-        }
+        if (Player const* player = ToPlayer())
+            TC_LOG_ERROR("entities.unit", "Player %s has invalid faction (faction template id) #%u", player->GetName().c_str(), getFaction());
+        else if (Creature const* creature = ToCreature())
+            TC_LOG_ERROR("entities.unit", "Creature (template id: %u) has invalid faction (faction template id) #%u", creature->GetCreatureTemplate()->Entry, getFaction());
+        else
+            TC_LOG_ERROR("entities.unit", "Unit (name=%s, type=%u) has invalid faction (faction template id) #%u", GetName().c_str(), uint32(GetTypeId()), getFaction());
     }
     return entry;
 }
@@ -7578,7 +7571,7 @@ bool Unit::AttackStop()
     m_attacking = NULL;
 
     // Clear our target
-    SetTarget(0);
+    SetTarget(ObjectGuid::Empty);
 
     ClearUnitState(UNIT_STATE_MELEE_ATTACKING);
 
@@ -7747,12 +7740,12 @@ bool Unit::HasAuraState(AuraStateType flag, SpellInfo const* spellProto, Unit co
     return HasFlag(UNIT_FIELD_AURASTATE, 1<<(flag-1));
 }
 
-void Unit::SetOwnerGUID(uint64 owner)
+void Unit::SetOwnerGUID(ObjectGuid owner)
 {
     if (GetOwnerGUID() == owner)
         return;
 
-    SetUInt64Value(UNIT_FIELD_SUMMONEDBY, owner);
+    SetGuidValue(UNIT_FIELD_SUMMONEDBY, owner);
     if (!owner)
         return;
 
@@ -7774,7 +7767,7 @@ void Unit::SetOwnerGUID(uint64 owner)
 
 Unit* Unit::GetOwner() const
 {
-    if (uint64 ownerGUID = GetOwnerGUID())
+    if (ObjectGuid ownerGUID = GetOwnerGUID())
         return ObjectAccessor::GetUnit(*this, ownerGUID);
 
     return NULL;
@@ -7782,7 +7775,7 @@ Unit* Unit::GetOwner() const
 
 Unit* Unit::GetCharmer() const
 {
-    if (uint64 charmerGUID = GetCharmerGUID())
+    if (ObjectGuid charmerGUID = GetCharmerGUID())
         return ObjectAccessor::GetUnit(*this, charmerGUID);
 
     return NULL;
@@ -7790,8 +7783,8 @@ Unit* Unit::GetCharmer() const
 
 Player* Unit::GetCharmerOrOwnerPlayerOrPlayerItself() const
 {
-    uint64 guid = GetCharmerOrOwnerGUID();
-    if (IS_PLAYER_GUID(guid))
+    ObjectGuid guid = GetCharmerOrOwnerGUID();
+    if (guid.IsPlayer())
         return ObjectAccessor::GetPlayer(*this, guid);
 
     return const_cast<Unit*>(this)->ToPlayer();
@@ -7810,14 +7803,14 @@ Player* Unit::GetAffectingPlayer() const
 
 Minion* Unit::GetFirstMinion() const
 {
-    if (uint64 pet_guid = GetMinionGUID())
+    if (ObjectGuid pet_guid = GetMinionGUID())
     {
         if (Creature* pet = ObjectAccessor::GetCreatureOrPetOrVehicle(*this, pet_guid))
             if (pet->HasUnitTypeMask(UNIT_MASK_MINION))
                 return (Minion*)pet;
 
-        TC_LOG_ERROR("entities.unit", "Unit::GetFirstMinion: Minion %u not exist.", GUID_LOPART(pet_guid));
-        const_cast<Unit*>(this)->SetMinionGUID(0);
+        TC_LOG_ERROR("entities.unit", "Unit::GetFirstMinion: Minion %s not exist.", pet_guid.ToString().c_str());
+        const_cast<Unit*>(this)->SetMinionGUID(ObjectGuid::Empty);
     }
 
     return NULL;
@@ -7825,14 +7818,14 @@ Minion* Unit::GetFirstMinion() const
 
 Guardian* Unit::GetGuardianPet() const
 {
-    if (uint64 pet_guid = GetPetGUID())
+    if (ObjectGuid pet_guid = GetPetGUID())
     {
         if (Creature* pet = ObjectAccessor::GetCreatureOrPetOrVehicle(*this, pet_guid))
             if (pet->HasUnitTypeMask(UNIT_MASK_GUARDIAN))
                 return (Guardian*)pet;
 
-        TC_LOG_FATAL("entities.unit", "Unit::GetGuardianPet: Guardian " UI64FMTD " not exist.", pet_guid);
-        const_cast<Unit*>(this)->SetPetGUID(0);
+        TC_LOG_FATAL("entities.unit", "Unit::GetGuardianPet: Guardian %s not exist.", pet_guid.ToString().c_str());
+        const_cast<Unit*>(this)->SetPetGUID(ObjectGuid::Empty);
     }
 
     return NULL;
@@ -7840,13 +7833,13 @@ Guardian* Unit::GetGuardianPet() const
 
 Unit* Unit::GetCharm() const
 {
-    if (uint64 charm_guid = GetCharmGUID())
+    if (ObjectGuid charm_guid = GetCharmGUID())
     {
         if (Unit* pet = ObjectAccessor::GetUnit(*this, charm_guid))
             return pet;
 
-        TC_LOG_ERROR("entities.unit", "Unit::GetCharm: Charmed creature %u not exist.", GUID_LOPART(charm_guid));
-        const_cast<Unit*>(this)->SetUInt64Value(UNIT_FIELD_CHARM, 0);
+        TC_LOG_ERROR("entities.unit", "Unit::GetCharm: Charmed creature %s not exist.", charm_guid.ToString().c_str());
+        const_cast<Unit*>(this)->SetGuidValue(UNIT_FIELD_CHARM, ObjectGuid::Empty);
     }
 
     return NULL;
@@ -7900,19 +7893,19 @@ void Unit::SetMinion(Minion *minion, bool apply)
                     else
                         oldPet->UnSummon();
                     SetPetGUID(minion->GetGUID());
-                    SetMinionGUID(0);
+                    SetMinionGUID(ObjectGuid::Empty);
                 }
             }
             else
             {
                 SetPetGUID(minion->GetGUID());
-                SetMinionGUID(0);
+                SetMinionGUID(ObjectGuid::Empty);
             }
         }
 
         if (minion->HasUnitTypeMask(UNIT_MASK_CONTROLABLE_GUARDIAN))
         {
-            if (AddUInt64Value(UNIT_FIELD_SUMMON, minion->GetGUID()))
+            if (AddGuidValue(UNIT_FIELD_SUMMON, minion->GetGUID()))
             {
             }
         }
@@ -7952,15 +7945,13 @@ void Unit::SetMinion(Minion *minion, bool apply)
         m_Controlled.erase(minion);
 
         if (minion->m_Properties && minion->m_Properties->Type == SUMMON_TYPE_MINIPET)
-        {
             if (GetCritterGUID() == minion->GetGUID())
-                SetCritterGUID(0);
-        }
+                SetCritterGUID(ObjectGuid::Empty);
 
         if (minion->IsGuardianPet())
         {
             if (GetPetGUID() == minion->GetGUID())
-                SetPetGUID(0);
+                SetPetGUID(ObjectGuid::Empty);
         }
         else if (minion->IsTotem())
         {
@@ -7985,7 +7976,7 @@ void Unit::SetMinion(Minion *minion, bool apply)
 
         //if (minion->HasUnitTypeMask(UNIT_MASK_GUARDIAN))
         {
-            if (RemoveUInt64Value(UNIT_FIELD_SUMMON, minion->GetGUID()))
+            if (RemoveGuidValue(UNIT_FIELD_SUMMON, minion->GetGUID()))
             {
                 // Check if there is another minion
                 for (ControlList::iterator itr = m_Controlled.begin(); itr != m_Controlled.end(); ++itr)
@@ -8007,7 +7998,7 @@ void Unit::SetMinion(Minion *minion, bool apply)
                     if (!(*itr)->HasUnitTypeMask(UNIT_MASK_CONTROLABLE_GUARDIAN))
                         continue;
 
-                    if (AddUInt64Value(UNIT_FIELD_SUMMON, (*itr)->GetGUID()))
+                    if (AddGuidValue(UNIT_FIELD_SUMMON, (*itr)->GetGUID()))
                     {
                         // show another pet bar if there is no charm bar
                         if (GetTypeId() == TYPEID_PLAYER && !GetCharmGUID())
@@ -8056,8 +8047,8 @@ void Unit::SetCharm(Unit* charm, bool apply)
     {
         if (GetTypeId() == TYPEID_PLAYER)
         {
-            if (!AddUInt64Value(UNIT_FIELD_CHARM, charm->GetGUID()))
-                TC_LOG_FATAL("entities.unit", "Player %s is trying to charm unit %u, but it already has a charmed unit " UI64FMTD "", GetName().c_str(), charm->GetEntry(), GetCharmGUID());
+            if (!AddGuidValue(UNIT_FIELD_CHARM, charm->GetGUID()))
+                TC_LOG_FATAL("entities.unit", "Player %s is trying to charm unit %u, but it already has a charmed unit %s", GetName().c_str(), charm->GetEntry(), GetCharmGUID().ToString().c_str());
 
             charm->m_ControlledByPlayer = true;
             /// @todo maybe we can use this flag to check if controlled by player
@@ -8069,8 +8060,8 @@ void Unit::SetCharm(Unit* charm, bool apply)
         // PvP, FFAPvP
         charm->SetByteValue(UNIT_FIELD_BYTES_2, 1, GetByteValue(UNIT_FIELD_BYTES_2, 1));
 
-        if (!charm->AddUInt64Value(UNIT_FIELD_CHARMEDBY, GetGUID()))
-            TC_LOG_FATAL("entities.unit", "Unit %u is being charmed, but it already has a charmer " UI64FMTD "", charm->GetEntry(), charm->GetCharmerGUID());
+        if (!charm->AddGuidValue(UNIT_FIELD_CHARMEDBY, GetGUID()))
+            TC_LOG_FATAL("entities.unit", "Unit %u is being charmed, but it already has a charmer %s", charm->GetEntry(), charm->GetCharmerGUID().ToString().c_str());
 
         _isWalkingBeforeCharm = charm->IsWalking();
         if (_isWalkingBeforeCharm)
@@ -8082,12 +8073,12 @@ void Unit::SetCharm(Unit* charm, bool apply)
     {
         if (GetTypeId() == TYPEID_PLAYER)
         {
-            if (!RemoveUInt64Value(UNIT_FIELD_CHARM, charm->GetGUID()))
-                TC_LOG_FATAL("entities.unit", "Player %s is trying to uncharm unit %u, but it has another charmed unit " UI64FMTD "", GetName().c_str(), charm->GetEntry(), GetCharmGUID());
+            if (!RemoveGuidValue(UNIT_FIELD_CHARM, charm->GetGUID()))
+                TC_LOG_FATAL("entities.unit", "Player %s is trying to uncharm unit %u, but it has another charmed unit %s", GetName().c_str(), charm->GetEntry(), GetCharmGUID().ToString().c_str());
         }
 
-        if (!charm->RemoveUInt64Value(UNIT_FIELD_CHARMEDBY, GetGUID()))
-            TC_LOG_FATAL("entities.unit", "Unit %u is being uncharmed, but it has another charmer " UI64FMTD "", charm->GetEntry(), charm->GetCharmerGUID());
+        if (!charm->RemoveGuidValue(UNIT_FIELD_CHARMEDBY, GetGUID()))
+            TC_LOG_FATAL("entities.unit", "Unit %u is being uncharmed, but it has another charmer %s", charm->GetEntry(), charm->GetCharmerGUID().ToString().c_str());
 
         if (charm->GetTypeId() == TYPEID_PLAYER)
         {
@@ -8207,7 +8198,7 @@ Unit* Unit::GetFirstControlled() const
     // Sequence: charmed, pet, other guardians
     Unit* unit = GetCharm();
     if (!unit)
-        if (uint64 guid = GetMinionGUID())
+        if (ObjectGuid guid = GetMinionGUID())
             unit = ObjectAccessor::GetUnit(*this, guid);
 
     return unit;
@@ -8231,16 +8222,16 @@ void Unit::RemoveAllControlled()
             TC_LOG_ERROR("entities.unit", "Unit %u is trying to release unit %u which is neither charmed nor owned by it", GetEntry(), target->GetEntry());
     }
     if (GetPetGUID())
-        TC_LOG_FATAL("entities.unit", "Unit %u is not able to release its pet " UI64FMTD, GetEntry(), GetPetGUID());
+        TC_LOG_FATAL("entities.unit", "Unit %u is not able to release its pet %s", GetEntry(), GetPetGUID().ToString().c_str());
     if (GetMinionGUID())
-        TC_LOG_FATAL("entities.unit", "Unit %u is not able to release its minion " UI64FMTD, GetEntry(), GetMinionGUID());
+        TC_LOG_FATAL("entities.unit", "Unit %u is not able to release its minion %s", GetEntry(), GetMinionGUID().ToString().c_str());
     if (GetCharmGUID())
-        TC_LOG_FATAL("entities.unit", "Unit %u is not able to release its charm " UI64FMTD, GetEntry(), GetCharmGUID());
+        TC_LOG_FATAL("entities.unit", "Unit %u is not able to release its charm %s", GetEntry(), GetCharmGUID().ToString().c_str());
 }
 
 bool Unit::isPossessedByPlayer() const
 {
-    return HasUnitState(UNIT_STATE_POSSESSED) && IS_PLAYER_GUID(GetCharmerGUID());
+    return HasUnitState(UNIT_STATE_POSSESSED) && GetCharmerGUID().IsPlayer();
 }
 
 bool Unit::isPossessing(Unit* u) const
@@ -8359,8 +8350,8 @@ void Unit::SendHealSpellLog(Unit* victim, uint32 SpellID, uint32 Damage, uint32
 {
     // we guess size
     WorldPacket data(SMSG_SPELLHEALLOG, 8 + 8 + 4 + 4 + 4 + 4 + 1 + 1);
-    data.append(victim->GetPackGUID());
-    data.append(GetPackGUID());
+    data << victim->GetPackGUID();
+    data << GetPackGUID();
     data << uint32(SpellID);
     data << uint32(Damage);
     data << uint32(OverHeal);
@@ -8384,8 +8375,8 @@ int32 Unit::HealBySpell(Unit* victim, SpellInfo const* spellInfo, uint32 addHeal
 void Unit::SendEnergizeSpellLog(Unit* victim, uint32 spellId, int32 damage, Powers powerType)
 {
     WorldPacket data(SMSG_SPELLENERGIZELOG, (8+8+4+4+4+1));
-    data.append(victim->GetPackGUID());
-    data.append(GetPackGUID());
+    data << victim->GetPackGUID();
+    data << GetPackGUID();
     data << uint32(spellId);
     data << uint32(powerType);
     data << int32(damage);
@@ -8882,7 +8873,7 @@ float Unit::GetUnitSpellCriticalChance(Unit* victim, SpellInfo const* spellProto
 {
     //! Mobs can't crit with spells. Player Totems can
     //! Fire Elemental (from totem) can too - but this part is a hack and needs more research
-    if (IS_CRE_OR_VEH_GUID(GetGUID()) && !(IsTotem() && IS_PLAYER_GUID(GetOwnerGUID())) && GetEntry() != 15438)
+    if (GetGUID().IsCreatureOrVehicle() && !(IsTotem() && GetOwnerGUID().IsPlayer()) && GetEntry() != 15438)
         return 0.0f;
 
     // not critting spell
@@ -9925,7 +9916,7 @@ void Unit::Mount(uint32 mount, uint32 VehicleId, uint32 creatureEntry)
             {
                 // Send others that we now have a vehicle
                 WorldPacket data(SMSG_PLAYER_VEHICLE_DATA, GetPackGUID().size()+4);
-                data.appendPackGUID(GetGUID());
+                data << GetPackGUID();
                 data << uint32(VehicleId);
                 SendMessageToSet(&data, true);
 
@@ -9966,7 +9957,7 @@ void Unit::Dismount()
         thisPlayer->SendMovementSetCollisionHeight(thisPlayer->GetCollisionHeight(false));
 
     WorldPacket data(SMSG_DISMOUNT, 8);
-    data.appendPackGUID(GetGUID());
+    data << GetPackGUID();
     SendMessageToSet(&data, true);
 
     // dismount as a vehicle
@@ -9974,7 +9965,7 @@ void Unit::Dismount()
     {
         // Send other players that we are no longer a vehicle
         data.Initialize(SMSG_PLAYER_VEHICLE_DATA, 8+4);
-        data.appendPackGUID(GetGUID());
+        data << GetPackGUID();
         data << uint32(0);
         ToPlayer()->SendMessageToSet(&data, true);
         // Remove vehicle from player
@@ -10542,7 +10533,7 @@ bool Unit::IsAlwaysVisibleFor(WorldObject const* seer) const
         return true;
 
     // Always seen by owner
-    if (uint64 guid = GetCharmerOrOwnerGUID())
+    if (ObjectGuid guid = GetCharmerOrOwnerGUID())
         if (seer->GetGUID() == guid)
             return true;
 
@@ -10850,7 +10841,7 @@ bool Unit::CanHaveThreatList(bool skipAliveCheck) const
     //    return false;
 
     // summons can not have a threat list, unless they are controlled by a creature
-    if (HasUnitTypeMask(UNIT_MASK_MINION | UNIT_MASK_GUARDIAN | UNIT_MASK_CONTROLABLE_GUARDIAN) && IS_PLAYER_GUID(((Pet*)this)->GetOwnerGUID()))
+    if (HasUnitTypeMask(UNIT_MASK_MINION | UNIT_MASK_GUARDIAN | UNIT_MASK_CONTROLABLE_GUARDIAN) && ((Pet*)this)->GetOwnerGUID().IsPlayer())
         return false;
 
     return true;
@@ -11652,7 +11643,7 @@ float Unit::GetWeaponDamageRange(WeaponAttackType attType, WeaponDamageRange typ
 bool Unit::CanFreeMove() const
 {
     return !HasUnitState(UNIT_STATE_CONFUSED | UNIT_STATE_FLEEING | UNIT_STATE_IN_FLIGHT |
-        UNIT_STATE_ROOT | UNIT_STATE_STUNNED | UNIT_STATE_DISTRACTED) && GetOwnerGUID() == 0;
+        UNIT_STATE_ROOT | UNIT_STATE_STUNNED | UNIT_STATE_DISTRACTED) && GetOwnerGUID().IsEmpty();
 }
 
 void Unit::SetLevel(uint8 lvl)
@@ -11665,7 +11656,7 @@ void Unit::SetLevel(uint8 lvl)
         if (player->GetGroup())
             player->SetGroupUpdateFlag(GROUP_UPDATE_FLAG_LEVEL);
 
-        sWorld->UpdateCharacterNameDataLevel(GetGUIDLow(), lvl);
+        sWorld->UpdateCharacterNameDataLevel(GetGUID(), lvl);
     }
 }
 
@@ -11762,7 +11753,7 @@ void Unit::SetPower(Powers power, int32 val)
     if (IsInWorld())
     {
         WorldPacket data(SMSG_POWER_UPDATE, 8 + 4 + 1 + 4);
-        data.append(GetPackGUID());
+        data << GetPackGUID();
         data << uint32(1); //power count
         data << uint8(powerIndex);
         data << int32(val);
@@ -12806,14 +12797,14 @@ SpellSchoolMask Unit::GetMeleeDamageSchoolMask() const
     return SPELL_SCHOOL_MASK_NORMAL;
 }
 
-uint64 Unit::GetCharmerOrOwnerGUID() const
+ObjectGuid Unit::GetCharmerOrOwnerGUID() const
 {
     return GetCharmerGUID() ? GetCharmerGUID() : GetOwnerGUID();
 }
 
-uint64 Unit::GetCharmerOrOwnerOrOwnGUID() const
+ObjectGuid Unit::GetCharmerOrOwnerOrOwnGUID() const
 {
-    if (uint64 guid = GetCharmerOrOwnerGUID())
+    if (ObjectGuid guid = GetCharmerOrOwnerGUID())
         return guid;
     return GetGUID();
 }
@@ -12856,7 +12847,7 @@ void Unit::SendPetTalk(uint32 pettalk)
     owner->ToPlayer()->GetSession()->SendPacket(&data);
 }
 
-void Unit::SendPetAIReaction(uint64 guid)
+void Unit::SendPetAIReaction(ObjectGuid guid)
 {
     Unit* owner = GetOwner();
     if (!owner || owner->GetTypeId() != TYPEID_PLAYER)
@@ -12970,13 +12961,13 @@ void Unit::ClearComboPointHolders()
 {
     while (!m_ComboPointHolders.empty())
     {
-        uint32 lowguid = *m_ComboPointHolders.begin();
+        ObjectGuid guid = *m_ComboPointHolders.begin();
 
-        Player* player = ObjectAccessor::FindPlayer(MAKE_NEW_GUID(lowguid, 0, HIGHGUID_PLAYER));
+        Player* player = ObjectAccessor::FindPlayer(guid);
         if (player && player->GetComboTarget() == GetGUID())         // recheck for safe
             player->ClearComboPoints();                        // remove also guid from m_ComboPointHolders;
         else
-            m_ComboPointHolders.erase(lowguid);             // or remove manually
+            m_ComboPointHolders.erase(guid);             // or remove manually
     }
 }
 
@@ -13500,7 +13491,7 @@ bool Unit::HandleAuraRaidProcFromChargeWithValue(AuraEffect* triggeredByAura)
     // aura can be deleted at casts
     SpellInfo const* spellProto = triggeredByAura->GetSpellInfo();
     int32 heal = triggeredByAura->GetAmount();
-    uint64 caster_guid = triggeredByAura->GetCasterGUID();
+    ObjectGuid caster_guid = triggeredByAura->GetCasterGUID();
 
     // Currently only Prayer of Mending
     if (!(spellProto->SpellFamilyName == SPELLFAMILY_PRIEST && spellProto->SpellFamilyFlags[1] & 0x20))
@@ -13559,7 +13550,7 @@ bool Unit::HandleAuraRaidProcFromCharge(AuraEffect* triggeredByAura)
             return false;
     }
 
-    uint64 caster_guid = triggeredByAura->GetCasterGUID();
+    ObjectGuid caster_guid = triggeredByAura->GetCasterGUID();
 
     // jumps
     int32 jumps = triggeredByAura->GetBase()->GetCharges()-1;
@@ -13602,7 +13593,7 @@ void Unit::SetAIAnimKitId(uint16 animKitId)
     _aiAnimKitId = animKitId;
 
     WorldPacket data(SMSG_SET_AI_ANIM_KIT, 8 + 2);
-    data.append(GetPackGUID());
+    data << GetPackGUID();
     data << uint16(animKitId);
     SendMessageToSet(&data, true);
 }
@@ -13615,7 +13606,7 @@ void Unit::SetMovementAnimKitId(uint16 animKitId)
     _movementAnimKitId = animKitId;
 
     WorldPacket data(SMSG_SET_MOVEMENT_ANIM_KIT, 8 + 2);
-    data.append(GetPackGUID());
+    data << GetPackGUID();
     data << uint16(animKitId);
     SendMessageToSet(&data, true);
 }
@@ -13628,7 +13619,7 @@ void Unit::SetMeleeAnimKitId(uint16 animKitId)
     _meleeAnimKitId = animKitId;
 
     WorldPacket data(SMSG_SET_MELEE_ANIM_KIT, 8 + 2);
-    data.append(GetPackGUID());
+    data << GetPackGUID();
     data << uint16(animKitId);
     SendMessageToSet(&data, true);
 }
@@ -13636,7 +13627,7 @@ void Unit::SetMeleeAnimKitId(uint16 animKitId)
 void Unit::PlayOneShotAnimKit(uint16 animKitId)
 {
     WorldPacket data(SMSG_PLAY_ONE_SHOT_ANIM_KIT, 7+2);
-    data.append(GetPackGUID());
+    data << GetPackGUID();
     data << uint16(animKitId);
     SendMessageToSet(&data, true);
 }
@@ -14041,7 +14032,7 @@ void Unit::SetStunned(bool apply)
 {
     if (apply)
     {
-        SetTarget(0);
+        SetTarget(ObjectGuid::Empty);
         SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_STUNNED);
 
         // Creature specific
@@ -14095,7 +14086,7 @@ void Unit::SetFeared(bool apply)
 {
     if (apply)
     {
-        SetTarget(0);
+        SetTarget(ObjectGuid::Empty);
 
         Unit* caster = NULL;
         Unit::AuraEffectList const& fearAuras = GetAuraEffectsByType(SPELL_AURA_MOD_FEAR);
@@ -14125,7 +14116,7 @@ void Unit::SetConfused(bool apply)
 {
     if (apply)
     {
-        SetTarget(0);
+        SetTarget(ObjectGuid::Empty);
         GetMotionMaster()->MoveConfused();
     }
     else
@@ -14378,7 +14369,7 @@ void Unit::RemoveCharmedBy(Unit* charmer)
                         if (GetCharmInfo())
                             GetCharmInfo()->SetPetNumber(0, true);
                         else
-                            TC_LOG_ERROR("entities.unit", "Aura::HandleModCharm: target=" UI64FMTD " with typeid=%d has a charm aura but no charm info!", GetGUID(), GetTypeId());
+                            TC_LOG_ERROR("entities.unit", "Aura::HandleModCharm: %s has a charm aura but no charm info!", GetGUID().ToString().c_str());
                     }
                 }
                 break;
@@ -14468,14 +14459,14 @@ Creature* Unit::GetVehicleCreatureBase() const
     return NULL;
 }
 
-uint64 Unit::GetTransGUID() const
+ObjectGuid Unit::GetTransGUID() const
 {
     if (GetVehicle())
         return GetVehicleBase()->GetGUID();
     if (GetTransport())
         return GetTransport()->GetGUID();
 
-    return 0;
+    return ObjectGuid::Empty;
 }
 
 TransportBase* Unit::GetDirectTransport() const
@@ -15335,7 +15326,7 @@ bool Unit::HandleSpellClick(Unit* clicker, int8 seatId)
 
         Unit* caster = (itr->second.castFlags & NPC_CLICK_CAST_CASTER_CLICKER) ? clicker : this;
         Unit* target = (itr->second.castFlags & NPC_CLICK_CAST_TARGET_CLICKER) ? clicker : this;
-        uint64 origCasterGUID = (itr->second.castFlags & NPC_CLICK_CAST_ORIG_CASTER_OWNER) ? GetOwnerGUID() : clicker->GetGUID();
+        ObjectGuid origCasterGUID = (itr->second.castFlags & NPC_CLICK_CAST_ORIG_CASTER_OWNER) ? GetOwnerGUID() : clicker->GetGUID();
 
         SpellInfo const* spellEntry = sSpellMgr->GetSpellInfo(itr->second.spellId);
         // if (!spellEntry) should be checked at npc_spellclick load
@@ -15588,7 +15579,7 @@ void Unit::WriteMovementInfo(WorldPacket& data, Movement::ExtraMovementStatusEle
     }
 
     ObjectGuid guid = GetGUID();
-    ObjectGuid tguid = hasTransportData ? GetTransGUID() : 0;
+    ObjectGuid tguid = hasTransportData ? GetTransGUID() : ObjectGuid::Empty;
 
     for (; *sequence != MSEEnd; ++sequence)
     {
@@ -15927,13 +15918,13 @@ void Unit::SendThreatListUpdate()
 
         TC_LOG_DEBUG("entities.unit", "WORLD: Send SMSG_THREAT_UPDATE Message");
         WorldPacket data(SMSG_THREAT_UPDATE, 8 + count * 8);
-        data.append(GetPackGUID());
+        data << GetPackGUID();
         data << uint32(count);
         ThreatContainer::StorageType const &tlist = getThreatManager().getThreatList();
         for (ThreatContainer::StorageType::const_iterator itr = tlist.begin(); itr != tlist.end(); ++itr)
         {
-            data.appendPackGUID((*itr)->getUnitGuid());
-            data << uint32((*itr)->getThreat()*100);
+            data << (*itr)->getUnitGuid().WriteAsPacked();
+            data << uint32((*itr)->getThreat() * 100);
         }
         SendMessageToSet(&data, false);
     }
@@ -15947,13 +15938,13 @@ void Unit::SendChangeCurrentVictimOpcode(HostileReference* pHostileReference)
 
         TC_LOG_DEBUG("entities.unit", "WORLD: Send SMSG_HIGHEST_THREAT_UPDATE Message");
         WorldPacket data(SMSG_HIGHEST_THREAT_UPDATE, 8 + 8 + count * 8);
-        data.append(GetPackGUID());
-        data.appendPackGUID(pHostileReference->getUnitGuid());
+        data << GetPackGUID();
+        data << pHostileReference->getUnitGuid().WriteAsPacked();
         data << uint32(count);
         ThreatContainer::StorageType const &tlist = getThreatManager().getThreatList();
         for (ThreatContainer::StorageType::const_iterator itr = tlist.begin(); itr != tlist.end(); ++itr)
         {
-            data.appendPackGUID((*itr)->getUnitGuid());
+            data << (*itr)->getUnitGuid().WriteAsPacked();
             data << uint32((*itr)->getThreat());
         }
         SendMessageToSet(&data, false);
@@ -15964,7 +15955,7 @@ void Unit::SendClearThreatListOpcode()
 {
     TC_LOG_DEBUG("entities.unit", "WORLD: Send SMSG_THREAT_CLEAR Message");
     WorldPacket data(SMSG_THREAT_CLEAR, 8);
-    data.append(GetPackGUID());
+    data << GetPackGUID();
     SendMessageToSet(&data, false);
 }
 
@@ -15972,8 +15963,8 @@ void Unit::SendRemoveFromThreatListOpcode(HostileReference* pHostileReference)
 {
     TC_LOG_DEBUG("entities.unit", "WORLD: Send SMSG_THREAT_REMOVE Message");
     WorldPacket data(SMSG_THREAT_REMOVE, 8 + 8);
-    data.append(GetPackGUID());
-    data.appendPackGUID(pHostileReference->getUnitGuid());
+    data << GetPackGUID();
+    data << pHostileReference->getUnitGuid().WriteAsPacked();
     SendMessageToSet(&data, false);
 }
 
@@ -16040,8 +16031,8 @@ void Unit::StopAttackFaction(uint32 faction_id)
 void Unit::OutDebugInfo() const
 {
     TC_LOG_ERROR("entities.unit", "Unit::OutDebugInfo");
-    TC_LOG_INFO("entities.unit", "GUID " UI64FMTD ", entry %u, type %u, name %s", GetGUID(), GetEntry(), (uint32)GetTypeId(), GetName().c_str());
-    TC_LOG_INFO("entities.unit", "OwnerGUID " UI64FMTD ", MinionGUID " UI64FMTD ", CharmerGUID " UI64FMTD ", CharmedGUID " UI64FMTD, GetOwnerGUID(), GetMinionGUID(), GetCharmerGUID(), GetCharmGUID());
+    TC_LOG_INFO("entities.unit", "%s name %s", GetGUID().ToString().c_str(), GetName().c_str());
+    TC_LOG_INFO("entities.unit", "Owner %s, Minion %s, Charmer %s, Charmed %s", GetOwnerGUID().ToString().c_str(), GetMinionGUID().ToString().c_str(), GetCharmerGUID().ToString().c_str(), GetCharmGUID().ToString().c_str());
     TC_LOG_INFO("entities.unit", "In world %u, unit type mask %u", (uint32)(IsInWorld() ? 1 : 0), m_unitTypeMask);
     if (IsInWorld())
         TC_LOG_INFO("entities.unit", "Mapid %u", GetMapId());
@@ -16049,14 +16040,14 @@ void Unit::OutDebugInfo() const
     std::ostringstream o;
     o << "Summon Slot: ";
     for (uint32 i = 0; i < MAX_SUMMON_SLOT; ++i)
-        o << m_SummonSlot[i] << ", ";
+        o << m_SummonSlot[i].ToString() << ", ";
 
     TC_LOG_INFO("entities.unit", "%s", o.str().c_str());
     o.str("");
 
     o << "Controlled List: ";
     for (ControlList::const_iterator itr = m_Controlled.begin(); itr != m_Controlled.end(); ++itr)
-        o << (*itr)->GetGUID() << ", ";
+        o << (*itr)->GetGUID().ToString() << ", ";
     TC_LOG_INFO("entities.unit", "%s", o.str().c_str());
     o.str("");
 
@@ -16071,7 +16062,7 @@ void Unit::OutDebugInfo() const
         o << "Passenger List: ";
         for (SeatMap::iterator itr = GetVehicleKit()->Seats.begin(); itr != GetVehicleKit()->Seats.end(); ++itr)
             if (Unit* passenger = ObjectAccessor::GetUnit(*GetVehicleBase(), itr->second.Passenger.Guid))
-                o << passenger->GetGUID() << ", ";
+                o << passenger->GetGUID().ToString() << ", ";
         TC_LOG_INFO("entities.unit", "%s", o.str().c_str());
     }
 
@@ -16079,7 +16070,7 @@ void Unit::OutDebugInfo() const
         TC_LOG_INFO("entities.unit", "On vehicle %u.", GetVehicleBase()->GetEntry());
 }
 
-uint32 Unit::GetRemainingPeriodicAmount(uint64 caster, uint32 spellId, AuraType auraType, uint8 effectIndex) const
+uint32 Unit::GetRemainingPeriodicAmount(ObjectGuid caster, uint32 spellId, AuraType auraType, uint8 effectIndex) const
 {
     uint32 amount = 0;
     AuraEffectList const& periodicAuras = GetAuraEffectsByType(auraType);
@@ -16097,7 +16088,7 @@ uint32 Unit::GetRemainingPeriodicAmount(uint64 caster, uint32 spellId, AuraType
 void Unit::SendClearTarget()
 {
     WorldPacket data(SMSG_BREAK_TARGET, GetPackGUID().size());
-    data.append(GetPackGUID());
+    data << GetPackGUID();
     SendMessageToSet(&data, false);
 }
 
@@ -16427,7 +16418,7 @@ void Unit::SendSetPlayHoverAnim(bool enable)
 void Unit::SendMovementSetSplineAnim(Movement::AnimType anim)
 {
     WorldPacket data(SMSG_SPLINE_MOVE_SET_ANIM, 8 + 4);
-    data.append(GetPackGUID());
+    data << GetPackGUID();
     data << uint32(anim);
     SendMessageToSet(&data, false);
 }
diff --git a/src/server/game/Entities/Unit/Unit.h b/src/server/game/Entities/Unit/Unit.h
index ee52189b0f5..fd986083bcb 100644
--- a/src/server/game/Entities/Unit/Unit.h
+++ b/src/server/game/Entities/Unit/Unit.h
@@ -1009,14 +1009,14 @@ uint32 createProcExtendMask(SpellNonMeleeDamage* damageInfo, SpellMissInfo missC
 
 struct RedirectThreatInfo
 {
-    RedirectThreatInfo() : _targetGUID(0), _threatPct(0) { }
-    uint64 _targetGUID;
+    RedirectThreatInfo() : _threatPct(0) { }
+    ObjectGuid _targetGUID;
     uint32 _threatPct;
 
-    uint64 GetTargetGUID() const { return _targetGUID; }
+    ObjectGuid GetTargetGUID() const { return _targetGUID; }
     uint32 GetThreatPct() const { return _threatPct; }
 
-    void Set(uint64 guid, uint32 pct)
+    void Set(ObjectGuid guid, uint32 pct)
     {
         _targetGUID = guid;
         _threatPct = pct;
@@ -1276,7 +1276,7 @@ class Unit : public WorldObject
         typedef std::set<Unit*> AttackerSet;
         typedef std::set<Unit*> ControlList;
 
-        typedef std::multimap<uint32,  Aura*> AuraMap;
+        typedef std::multimap<uint32, Aura*> AuraMap;
         typedef std::pair<AuraMap::const_iterator, AuraMap::const_iterator> AuraMapBounds;
         typedef std::pair<AuraMap::iterator, AuraMap::iterator> AuraMapBoundsNonConst;
 
@@ -1291,7 +1291,6 @@ class Unit : public WorldObject
         typedef std::list<Aura*> AuraList;
         typedef std::list<AuraApplication *> AuraApplicationList;
         typedef std::list<DiminishingReturn> Diminishing;
-        typedef std::set<uint32> ComboPointHolderSet;
 
         typedef std::map<uint8, AuraApplication*> VisibleAuraMap;
 
@@ -1586,17 +1585,17 @@ class Unit : public WorldObject
         void EnergizeBySpell(Unit* victim, uint32 SpellID, int32 Damage, Powers powertype);
         uint32 SpellNonMeleeDamageLog(Unit* victim, uint32 spellID, uint32 damage);
 
-        void CastSpell(SpellCastTargets const& targets, SpellInfo const* spellInfo, CustomSpellValues const* value, TriggerCastFlags triggerFlags = TRIGGERED_NONE, Item* castItem = NULL, AuraEffect const* triggeredByAura = NULL, uint64 originalCaster = 0);
-        void CastSpell(Unit* victim, uint32 spellId, bool triggered, Item* castItem = NULL, AuraEffect const* triggeredByAura = NULL, uint64 originalCaster = 0);
-        void CastSpell(Unit* victim, uint32 spellId, TriggerCastFlags triggerFlags = TRIGGERED_NONE, Item* castItem = NULL, AuraEffect const* triggeredByAura = NULL, uint64 originalCaster = 0);
-        void CastSpell(Unit* victim, SpellInfo const* spellInfo, bool triggered, Item* castItem = NULL, AuraEffect const* triggeredByAura = NULL, uint64 originalCaster = 0);
-        void CastSpell(Unit* victim, SpellInfo const* spellInfo, TriggerCastFlags triggerFlags = TRIGGERED_NONE, Item* castItem = NULL, AuraEffect const* triggeredByAura = NULL, uint64 originalCaster = 0);
-        void CastSpell(float x, float y, float z, uint32 spellId, bool triggered, Item* castItem = NULL, AuraEffect const* triggeredByAura = NULL, uint64 originalCaster = 0);
-        void CastSpell(GameObject* go, uint32 spellId, bool triggered, Item* castItem = NULL, AuraEffect* triggeredByAura = NULL, uint64 originalCaster = 0);
-        void CastCustomSpell(Unit* victim, uint32 spellId, int32 const* bp0, int32 const* bp1, int32 const* bp2, bool triggered, Item* castItem = NULL, AuraEffect const* triggeredByAura = NULL, uint64 originalCaster = 0);
-        void CastCustomSpell(uint32 spellId, SpellValueMod mod, int32 value, Unit* victim, bool triggered, Item* castItem = NULL, AuraEffect const* triggeredByAura = NULL, uint64 originalCaster = 0);
-        void CastCustomSpell(uint32 spellId, SpellValueMod mod, int32 value, Unit* victim = NULL, TriggerCastFlags triggerFlags = TRIGGERED_NONE, Item* castItem = NULL, AuraEffect const* triggeredByAura = NULL, uint64 originalCaster = 0);
-        void CastCustomSpell(uint32 spellId, CustomSpellValues const &value, Unit* victim = NULL, TriggerCastFlags triggerFlags = TRIGGERED_NONE, Item* castItem = NULL, AuraEffect const* triggeredByAura = NULL, uint64 originalCaster = 0);
+        void CastSpell(SpellCastTargets const& targets, SpellInfo const* spellInfo, CustomSpellValues const* value, TriggerCastFlags triggerFlags = TRIGGERED_NONE, Item* castItem = NULL, AuraEffect const* triggeredByAura = NULL, ObjectGuid originalCaster = ObjectGuid::Empty);
+        void CastSpell(Unit* victim, uint32 spellId, bool triggered, Item* castItem = NULL, AuraEffect const* triggeredByAura = NULL, ObjectGuid originalCaster = ObjectGuid::Empty);
+        void CastSpell(Unit* victim, uint32 spellId, TriggerCastFlags triggerFlags = TRIGGERED_NONE, Item* castItem = NULL, AuraEffect const* triggeredByAura = NULL, ObjectGuid originalCaster = ObjectGuid::Empty);
+        void CastSpell(Unit* victim, SpellInfo const* spellInfo, bool triggered, Item* castItem = NULL, AuraEffect const* triggeredByAura = NULL, ObjectGuid originalCaster = ObjectGuid::Empty);
+        void CastSpell(Unit* victim, SpellInfo const* spellInfo, TriggerCastFlags triggerFlags = TRIGGERED_NONE, Item* castItem = NULL, AuraEffect const* triggeredByAura = NULL, ObjectGuid originalCaster = ObjectGuid::Empty);
+        void CastSpell(float x, float y, float z, uint32 spellId, bool triggered, Item* castItem = NULL, AuraEffect const* triggeredByAura = NULL, ObjectGuid originalCaster = ObjectGuid::Empty);
+        void CastSpell(GameObject* go, uint32 spellId, bool triggered, Item* castItem = NULL, AuraEffect* triggeredByAura = NULL, ObjectGuid originalCaster = ObjectGuid::Empty);
+        void CastCustomSpell(Unit* victim, uint32 spellId, int32 const* bp0, int32 const* bp1, int32 const* bp2, bool triggered, Item* castItem = NULL, AuraEffect const* triggeredByAura = NULL, ObjectGuid originalCaster = ObjectGuid::Empty);
+        void CastCustomSpell(uint32 spellId, SpellValueMod mod, int32 value, Unit* victim, bool triggered, Item* castItem = NULL, AuraEffect const* triggeredByAura = NULL, ObjectGuid originalCaster = ObjectGuid::Empty);
+        void CastCustomSpell(uint32 spellId, SpellValueMod mod, int32 value, Unit* victim = NULL, TriggerCastFlags triggerFlags = TRIGGERED_NONE, Item* castItem = NULL, AuraEffect const* triggeredByAura = NULL, ObjectGuid originalCaster = ObjectGuid::Empty);
+        void CastCustomSpell(uint32 spellId, CustomSpellValues const &value, Unit* victim = NULL, TriggerCastFlags triggerFlags = TRIGGERED_NONE, Item* castItem = NULL, AuraEffect const* triggeredByAura = NULL, ObjectGuid originalCaster = ObjectGuid::Empty);
         Aura* AddAura(uint32 spellId, Unit* target);
         Aura* AddAura(SpellInfo const* spellInfo, uint8 effMask, Unit* target);
         void SetAuraStack(uint32 spellId, Unit* target, uint32 stack);
@@ -1663,24 +1662,24 @@ class Unit : public WorldObject
         DeathState getDeathState() const { return m_deathState; }
         virtual void setDeathState(DeathState s);           // overwrited in Creature/Player/Pet
 
-        uint64 GetOwnerGUID() const { return  GetUInt64Value(UNIT_FIELD_SUMMONEDBY); }
-        void SetOwnerGUID(uint64 owner);
-        uint64 GetCreatorGUID() const { return GetUInt64Value(UNIT_FIELD_CREATEDBY); }
-        void SetCreatorGUID(uint64 creator) { SetUInt64Value(UNIT_FIELD_CREATEDBY, creator); }
-        uint64 GetMinionGUID() const { return GetUInt64Value(UNIT_FIELD_SUMMON); }
-        void SetMinionGUID(uint64 guid) { SetUInt64Value(UNIT_FIELD_SUMMON, guid); }
-        uint64 GetCharmerGUID() const { return GetUInt64Value(UNIT_FIELD_CHARMEDBY); }
-        void SetCharmerGUID(uint64 owner) { SetUInt64Value(UNIT_FIELD_CHARMEDBY, owner); }
-        uint64 GetCharmGUID() const { return  GetUInt64Value(UNIT_FIELD_CHARM); }
-        void SetPetGUID(uint64 guid) { m_SummonSlot[SUMMON_SLOT_PET] = guid; }
-        uint64 GetPetGUID() const { return m_SummonSlot[SUMMON_SLOT_PET]; }
-        void SetCritterGUID(uint64 guid) { SetUInt64Value(UNIT_FIELD_CRITTER, guid); }
-        uint64 GetCritterGUID() const { return GetUInt64Value(UNIT_FIELD_CRITTER); }
+        ObjectGuid GetOwnerGUID() const { return  GetGuidValue(UNIT_FIELD_SUMMONEDBY); }
+        void SetOwnerGUID(ObjectGuid owner);
+        ObjectGuid GetCreatorGUID() const { return GetGuidValue(UNIT_FIELD_CREATEDBY); }
+        void SetCreatorGUID(ObjectGuid creator) { SetGuidValue(UNIT_FIELD_CREATEDBY, creator); }
+        ObjectGuid GetMinionGUID() const { return GetGuidValue(UNIT_FIELD_SUMMON); }
+        void SetMinionGUID(ObjectGuid guid) { SetGuidValue(UNIT_FIELD_SUMMON, guid); }
+        ObjectGuid GetCharmerGUID() const { return GetGuidValue(UNIT_FIELD_CHARMEDBY); }
+        void SetCharmerGUID(ObjectGuid owner) { SetGuidValue(UNIT_FIELD_CHARMEDBY, owner); }
+        ObjectGuid GetCharmGUID() const { return  GetGuidValue(UNIT_FIELD_CHARM); }
+        void SetPetGUID(ObjectGuid guid) { m_SummonSlot[SUMMON_SLOT_PET] = guid; }
+        ObjectGuid GetPetGUID() const { return m_SummonSlot[SUMMON_SLOT_PET]; }
+        void SetCritterGUID(ObjectGuid guid) { SetGuidValue(UNIT_FIELD_CRITTER, guid); }
+        ObjectGuid GetCritterGUID() const { return GetGuidValue(UNIT_FIELD_CRITTER); }
 
         bool IsControlledByPlayer() const { return m_ControlledByPlayer; }
-        uint64 GetCharmerOrOwnerGUID() const;
-        uint64 GetCharmerOrOwnerOrOwnGUID() const;
-        bool IsCharmedOwnedByPlayerOrPlayer() const { return IS_PLAYER_GUID(GetCharmerOrOwnerOrOwnGUID()); }
+        ObjectGuid GetCharmerOrOwnerGUID() const;
+        ObjectGuid GetCharmerOrOwnerOrOwnGUID() const;
+        bool IsCharmedOwnedByPlayerOrPlayer() const { return GetCharmerOrOwnerOrOwnGUID().IsPlayer(); }
 
         Player* GetSpellModOwner() const;
 
@@ -1707,7 +1706,7 @@ class Unit : public WorldObject
         Unit* GetFirstControlled() const;
         void RemoveAllControlled();
 
-        bool IsCharmed() const { return GetCharmerGUID() != 0; }
+        bool IsCharmed() const { return !GetCharmerGUID().IsEmpty(); }
         bool isPossessed() const { return HasUnitState(UNIT_STATE_POSSESSED); }
         bool isPossessedByPlayer() const;
         bool isPossessing() const;
@@ -1731,7 +1730,7 @@ class Unit : public WorldObject
         bool InitTamedPet(Pet* pet, uint8 level, uint32 spell_id);
 
         // aura apply/remove helpers - you should better not use these
-        Aura* _TryStackingOrRefreshingExistingAura(SpellInfo const* newAura, uint8 effMask, Unit* caster, int32* baseAmount = NULL, Item* castItem = NULL, uint64 casterGUID = 0);
+        Aura* _TryStackingOrRefreshingExistingAura(SpellInfo const* newAura, uint8 effMask, Unit* caster, int32* baseAmount = NULL, Item* castItem = NULL, ObjectGuid casterGUID = ObjectGuid::Empty);
         void _AddAura(UnitAura* aura, Unit* caster);
         AuraApplication * _CreateAuraApplication(Aura* aura, uint8 effMask);
         void _ApplyAuraEffect(Aura* aura, uint8 effIndex);
@@ -1748,31 +1747,31 @@ class Unit : public WorldObject
         AuraMap const& GetOwnedAuras() const { return m_ownedAuras; }
 
         void RemoveOwnedAura(AuraMap::iterator &i, AuraRemoveMode removeMode = AURA_REMOVE_BY_DEFAULT);
-        void RemoveOwnedAura(uint32 spellId, uint64 casterGUID = 0, uint8 reqEffMask = 0, AuraRemoveMode removeMode = AURA_REMOVE_BY_DEFAULT);
+        void RemoveOwnedAura(uint32 spellId, ObjectGuid casterGUID = ObjectGuid::Empty, uint8 reqEffMask = 0, AuraRemoveMode removeMode = AURA_REMOVE_BY_DEFAULT);
         void RemoveOwnedAura(Aura* aura, AuraRemoveMode removeMode = AURA_REMOVE_BY_DEFAULT);
 
-        Aura* GetOwnedAura(uint32 spellId, uint64 casterGUID = 0, uint64 itemCasterGUID = 0, uint8 reqEffMask = 0, Aura* except = NULL) const;
+        Aura* GetOwnedAura(uint32 spellId, ObjectGuid casterGUID = ObjectGuid::Empty, ObjectGuid itemCasterGUID = ObjectGuid::Empty, uint8 reqEffMask = 0, Aura* except = NULL) const;
 
         // m_appliedAuras container management
         AuraApplicationMap      & GetAppliedAuras()       { return m_appliedAuras; }
         AuraApplicationMap const& GetAppliedAuras() const { return m_appliedAuras; }
 
         void RemoveAura(AuraApplicationMap::iterator &i, AuraRemoveMode mode = AURA_REMOVE_BY_DEFAULT);
-        void RemoveAura(uint32 spellId, uint64 casterGUID = 0, uint8 reqEffMask = 0, AuraRemoveMode removeMode = AURA_REMOVE_BY_DEFAULT);
+        void RemoveAura(uint32 spellId, ObjectGuid casterGUID = ObjectGuid::Empty, uint8 reqEffMask = 0, AuraRemoveMode removeMode = AURA_REMOVE_BY_DEFAULT);
         void RemoveAura(AuraApplication * aurApp, AuraRemoveMode mode = AURA_REMOVE_BY_DEFAULT);
         void RemoveAura(Aura* aur, AuraRemoveMode mode = AURA_REMOVE_BY_DEFAULT);
 
-        void RemoveAurasDueToSpell(uint32 spellId, uint64 casterGUID = 0, uint8 reqEffMask = 0, AuraRemoveMode removeMode = AURA_REMOVE_BY_DEFAULT);
-        void RemoveAuraFromStack(uint32 spellId, uint64 casterGUID = 0, AuraRemoveMode removeMode = AURA_REMOVE_BY_DEFAULT);
-        void RemoveAurasDueToSpellByDispel(uint32 spellId, uint32 dispellerSpellId, uint64 casterGUID, Unit* dispeller, uint8 chargesRemoved = 1);
-        void RemoveAurasDueToSpellBySteal(uint32 spellId, uint64 casterGUID, Unit* stealer);
-        void RemoveAurasDueToItemSpell(uint32 spellId, uint64 castItemGuid);
-        void RemoveAurasByType(AuraType auraType, uint64 casterGUID = 0, Aura* except = NULL, bool negative = true, bool positive = true);
+        void RemoveAurasDueToSpell(uint32 spellId, ObjectGuid casterGUID = ObjectGuid::Empty, uint8 reqEffMask = 0, AuraRemoveMode removeMode = AURA_REMOVE_BY_DEFAULT);
+        void RemoveAuraFromStack(uint32 spellId, ObjectGuid casterGUID = ObjectGuid::Empty, AuraRemoveMode removeMode = AURA_REMOVE_BY_DEFAULT);
+        void RemoveAurasDueToSpellByDispel(uint32 spellId, uint32 dispellerSpellId, ObjectGuid casterGUID, Unit* dispeller, uint8 chargesRemoved = 1);
+        void RemoveAurasDueToSpellBySteal(uint32 spellId, ObjectGuid casterGUID, Unit* stealer);
+        void RemoveAurasDueToItemSpell(uint32 spellId, ObjectGuid castItemGuid);
+        void RemoveAurasByType(AuraType auraType, ObjectGuid casterGUID = ObjectGuid::Empty, Aura* except = NULL, bool negative = true, bool positive = true);
         void RemoveNotOwnSingleTargetAuras(uint32 newPhase = 0x0, bool phaseid = false);
         void RemoveAurasWithInterruptFlags(uint32 flag, uint32 except = 0);
         void RemoveAurasWithAttribute(uint32 flags);
-        void RemoveAurasWithFamily(SpellFamilyNames family, uint32 familyFlag1, uint32 familyFlag2, uint32 familyFlag3, uint64 casterGUID);
-        void RemoveAurasWithMechanic(uint32 mechanic_mask, AuraRemoveMode removemode = AURA_REMOVE_BY_DEFAULT, uint32 except=0);
+        void RemoveAurasWithFamily(SpellFamilyNames family, uint32 familyFlag1, uint32 familyFlag2, uint32 familyFlag3, ObjectGuid casterGUID);
+        void RemoveAurasWithMechanic(uint32 mechanic_mask, AuraRemoveMode removemode = AURA_REMOVE_BY_DEFAULT, uint32 except = 0);
         void RemoveMovementImpairingAuras();
 
         void RemoveAreaAurasDueToLeaveWorld();
@@ -1782,7 +1781,7 @@ class Unit : public WorldObject
         void RemoveAllAurasRequiringDeadTarget();
         void RemoveAllAurasExceptType(AuraType type);
         void RemoveAllAurasExceptType(AuraType type1, AuraType type2); /// @todo: once we support variadic templates use them here
-        void DelayOwnedAuras(uint32 spellId, uint64 caster, int32 delaytime);
+        void DelayOwnedAuras(uint32 spellId, ObjectGuid caster, int32 delaytime);
 
         void _RemoveAllAuraStatMods();
         void _ApplyAllAuraStatMods();
@@ -1791,35 +1790,35 @@ class Unit : public WorldObject
         AuraList      & GetSingleCastAuras()       { return m_scAuras; }
         AuraList const& GetSingleCastAuras() const { return m_scAuras; }
 
-        AuraEffect* GetAuraEffect(uint32 spellId, uint8 effIndex, uint64 casterGUID = 0) const;
-        AuraEffect* GetAuraEffectOfRankedSpell(uint32 spellId, uint8 effIndex, uint64 casterGUID = 0) const;
+        AuraEffect* GetAuraEffect(uint32 spellId, uint8 effIndex, ObjectGuid casterGUID = ObjectGuid::Empty) const;
+        AuraEffect* GetAuraEffectOfRankedSpell(uint32 spellId, uint8 effIndex, ObjectGuid casterGUID = ObjectGuid::Empty) const;
         AuraEffect* GetAuraEffect(AuraType type, SpellFamilyNames name, uint32 iconId, uint8 effIndex) const; // spell mustn't have familyflags
-        AuraEffect* GetAuraEffect(AuraType type, SpellFamilyNames family, uint32 familyFlag1, uint32 familyFlag2, uint32 familyFlag3, uint64 casterGUID =0) const;
+        AuraEffect* GetAuraEffect(AuraType type, SpellFamilyNames family, uint32 familyFlag1, uint32 familyFlag2, uint32 familyFlag3, ObjectGuid casterGUID = ObjectGuid::Empty) const;
         AuraEffect* GetDummyAuraEffect(SpellFamilyNames name, uint32 iconId, uint8 effIndex) const;
 
-        AuraApplication * GetAuraApplication(uint32 spellId, uint64 casterGUID = 0, uint64 itemCasterGUID = 0, uint8 reqEffMask = 0, AuraApplication * except = NULL) const;
-        Aura* GetAura(uint32 spellId, uint64 casterGUID = 0, uint64 itemCasterGUID = 0, uint8 reqEffMask = 0) const;
+        AuraApplication * GetAuraApplication(uint32 spellId, ObjectGuid casterGUID = ObjectGuid::Empty, ObjectGuid itemCasterGUID = ObjectGuid::Empty, uint8 reqEffMask = 0, AuraApplication * except = NULL) const;
+        Aura* GetAura(uint32 spellId, ObjectGuid casterGUID = ObjectGuid::Empty, ObjectGuid itemCasterGUID = ObjectGuid::Empty, uint8 reqEffMask = 0) const;
 
-        AuraApplication * GetAuraApplicationOfRankedSpell(uint32 spellId, uint64 casterGUID = 0, uint64 itemCasterGUID = 0, uint8 reqEffMask = 0, AuraApplication * except = NULL) const;
-        Aura* GetAuraOfRankedSpell(uint32 spellId, uint64 casterGUID = 0, uint64 itemCasterGUID = 0, uint8 reqEffMask = 0) const;
+        AuraApplication * GetAuraApplicationOfRankedSpell(uint32 spellId, ObjectGuid casterGUID = ObjectGuid::Empty, ObjectGuid itemCasterGUID = ObjectGuid::Empty, uint8 reqEffMask = 0, AuraApplication * except = NULL) const;
+        Aura* GetAuraOfRankedSpell(uint32 spellId, ObjectGuid casterGUID = ObjectGuid::Empty, ObjectGuid itemCasterGUID = ObjectGuid::Empty, uint8 reqEffMask = 0) const;
 
         void GetDispellableAuraList(Unit* caster, uint32 dispelMask, DispelChargesList& dispelList);
 
-        bool HasAuraEffect(uint32 spellId, uint8 effIndex, uint64 caster = 0) const;
+        bool HasAuraEffect(uint32 spellId, uint8 effIndex, ObjectGuid caster = ObjectGuid::Empty) const;
         uint32 GetAuraCount(uint32 spellId) const;
-        bool HasAura(uint32 spellId, uint64 casterGUID = 0, uint64 itemCasterGUID = 0, uint8 reqEffMask = 0) const;
+        bool HasAura(uint32 spellId, ObjectGuid casterGUID = ObjectGuid::Empty, ObjectGuid itemCasterGUID = ObjectGuid::Empty, uint8 reqEffMask = 0) const;
         bool HasAuraType(AuraType auraType) const;
-        bool HasAuraTypeWithCaster(AuraType auratype, uint64 caster) const;
+        bool HasAuraTypeWithCaster(AuraType auratype, ObjectGuid caster) const;
         bool HasAuraTypeWithMiscvalue(AuraType auratype, int32 miscvalue) const;
         bool HasAuraTypeWithAffectMask(AuraType auratype, SpellInfo const* affectedSpell) const;
         bool HasAuraTypeWithValue(AuraType auratype, int32 value) const;
-        bool HasNegativeAuraWithInterruptFlag(uint32 flag, uint64 guid = 0) const;
-        bool HasNegativeAuraWithAttribute(uint32 flag, uint64 guid = 0) const;
+        bool HasNegativeAuraWithInterruptFlag(uint32 flag, ObjectGuid guid = ObjectGuid::Empty) const;
+        bool HasNegativeAuraWithAttribute(uint32 flag, ObjectGuid guid = ObjectGuid::Empty) const;
         bool HasAuraWithMechanic(uint32 mechanicMask) const;
 
         AuraEffect* IsScriptOverriden(SpellInfo const* spell, int32 script) const;
-        uint32 GetDiseasesByCaster(uint64 casterGUID, bool remove = false);
-        uint32 GetDoTsByCaster(uint64 casterGUID) const;
+        uint32 GetDiseasesByCaster(ObjectGuid casterGUID, bool remove = false);
+        uint32 GetDoTsByCaster(ObjectGuid casterGUID) const;
 
         int32 GetTotalAuraModifier(AuraType auratype) const;
         float GetTotalAuraMultiplier(AuraType auratype) const;
@@ -1859,6 +1858,9 @@ class Unit : public WorldObject
         float GetNegStat(Stats stat) const { return GetFloatValue(UNIT_FIELD_NEGSTAT0+stat); }
         float GetCreateStat(Stats stat) const { return m_createStats[stat]; }
 
+        ObjectGuid GetChannelObjectGuid() const { return GetGuidValue(UNIT_FIELD_CHANNEL_OBJECT); }
+        void SetChannelObjectGuid(ObjectGuid guid) { SetGuidValue(UNIT_FIELD_CHANNEL_OBJECT, guid); }
+
         void SetCurrentCastSpell(Spell* pSpell);
         virtual void ProhibitSpellSchool(SpellSchoolMask /*idSchoolMask*/, uint32 /*unTimeMs*/) { }
         void InterruptSpell(CurrentSpellTypes spellType, bool withDelayed = true, bool withInstant = true);
@@ -1878,8 +1880,8 @@ class Unit : public WorldObject
         Spell* FindCurrentSpellBySpellId(uint32 spell_id) const;
         int32 GetCurrentSpellCastTime(uint32 spell_id) const;
 
-        uint64 m_SummonSlot[MAX_SUMMON_SLOT];
-        uint64 m_ObjectSlot[MAX_GAMEOBJECT_SLOT];
+        ObjectGuid m_SummonSlot[MAX_SUMMON_SLOT];
+        ObjectGuid m_ObjectSlot[MAX_GAMEOBJECT_SLOT];
 
         ShapeshiftForm GetShapeshiftForm() const { return ShapeshiftForm(GetByteValue(UNIT_FIELD_BYTES_2, 3)); }
         void SetShapeshiftForm(ShapeshiftForm form);
@@ -2015,7 +2017,7 @@ class Unit : public WorldObject
         uint32 GetCastingTimeForBonus(SpellInfo const* spellProto, DamageEffectType damagetype, uint32 CastingTime) const;
         float CalculateDefaultCoefficient(SpellInfo const* spellInfo, DamageEffectType damagetype) const;
 
-        uint32 GetRemainingPeriodicAmount(uint64 caster, uint32 spellId, AuraType auraType, uint8 effectIndex = 0) const;
+        uint32 GetRemainingPeriodicAmount(ObjectGuid caster, uint32 spellId, AuraType auraType, uint8 effectIndex = 0) const;
 
         void ApplySpellImmune(uint32 spellId, uint32 op, uint32 type, bool apply);
         void ApplySpellDispelImmunity(const SpellInfo* spellProto, DispelType type, bool apply);
@@ -2069,14 +2071,14 @@ class Unit : public WorldObject
 
         void SetControlled(bool apply, UnitState state);
 
-        void AddComboPointHolder(uint32 lowguid) { m_ComboPointHolders.insert(lowguid); }
-        void RemoveComboPointHolder(uint32 lowguid) { m_ComboPointHolders.erase(lowguid); }
+        void AddComboPointHolder(ObjectGuid lowguid) { m_ComboPointHolders.insert(lowguid); }
+        void RemoveComboPointHolder(ObjectGuid lowguid) { m_ComboPointHolders.erase(lowguid); }
         void ClearComboPointHolders();
 
         ///----------Pet responses methods-----------------
         void SendPetActionFeedback (uint8 msg);
         void SendPetTalk (uint32 pettalk);
-        void SendPetAIReaction(uint64 guid);
+        void SendPetAIReaction(ObjectGuid guid);
         ///----------End of Pet responses methods----------
 
         void propagateSpeedChange() { GetMotionMaster()->propagateSpeedChange(); }
@@ -2103,15 +2105,15 @@ class Unit : public WorldObject
         uint32 GetModelForTotem(PlayerTotemType totemType);
 
         // Redirect Threat
-        void SetRedirectThreat(uint64 guid, uint32 pct) { _redirectThreadInfo.Set(guid, pct); }
-        void ResetRedirectThreat() { SetRedirectThreat(0, 0); }
+        void SetRedirectThreat(ObjectGuid guid, uint32 pct) { _redirectThreadInfo.Set(guid, pct); }
+        void ResetRedirectThreat() { SetRedirectThreat(ObjectGuid::Empty, 0); }
         void ModifyRedirectThreat(int32 amount) { _redirectThreadInfo.ModifyThreatPct(amount); }
         uint32 GetRedirectThreatPercent() const { return _redirectThreadInfo.GetThreatPct(); }
         Unit* GetRedirectThreatTarget();
 
         friend class VehicleJoinEvent;
         bool IsAIEnabled, NeedChangeAI;
-        uint64 LastCharmerGUID;
+        ObjectGuid LastCharmerGUID;
         bool CreateVehicleKit(uint32 id, uint32 creatureEntry);
         void RemoveVehicleKit();
         Vehicle* GetVehicleKit()const { return m_vehicleKit; }
@@ -2120,7 +2122,7 @@ class Unit : public WorldObject
         bool IsOnVehicle(const Unit* vehicle) const;
         Unit* GetVehicleBase()  const;
         Creature* GetVehicleCreatureBase() const;
-        uint64 GetTransGUID()   const override;
+        ObjectGuid GetTransGUID()   const override;
         /// Returns the transport this unit is on directly (if on vehicle and transport, return vehicle)
         TransportBase* GetDirectTransport() const;
 
@@ -2148,7 +2150,7 @@ class Unit : public WorldObject
         virtual float GetFollowAngle() const { return static_cast<float>(M_PI/2); }
 
         void OutDebugInfo() const;
-        virtual bool isBeingLoaded() const { return false;}
+        virtual bool IsLoading() const { return false; }
         bool IsDuringRemoveFromWorld() const {return m_duringRemoveFromWorld;}
 
         Pet* ToPet() { if (IsPet()) return reinterpret_cast<Pet*>(this); else return NULL; }
@@ -2160,8 +2162,8 @@ class Unit : public WorldObject
         TempSummon* ToTempSummon() { if (IsSummon()) return reinterpret_cast<TempSummon*>(this); else return NULL; }
         TempSummon const* ToTempSummon() const { if (IsSummon()) return reinterpret_cast<TempSummon const*>(this); else return NULL; }
 
-        uint64 GetTarget() const { return GetUInt64Value(UNIT_FIELD_TARGET); }
-        virtual void SetTarget(uint64 /*guid*/) = 0;
+        ObjectGuid GetTarget() const { return GetGuidValue(UNIT_FIELD_TARGET); }
+        virtual void SetTarget(ObjectGuid /*guid*/) = 0;
 
         // Movement info
         Movement::MoveSpline * movespline;
@@ -2297,7 +2299,7 @@ class Unit : public WorldObject
 
         FollowerRefManager m_FollowingRefManager;
 
-        ComboPointHolderSet m_ComboPointHolders;
+        GuidSet m_ComboPointHolders;
 
         RedirectThreatInfo _redirectThreadInfo;
 
diff --git a/src/server/game/Entities/Vehicle/Vehicle.h b/src/server/game/Entities/Vehicle/Vehicle.h
index be008330f0c..ffed8e2b677 100644
--- a/src/server/game/Entities/Vehicle/Vehicle.h
+++ b/src/server/game/Entities/Vehicle/Vehicle.h
@@ -29,8 +29,6 @@ struct VehicleEntry;
 class Unit;
 class VehicleJoinEvent;
 
-typedef std::set<uint64> GuidSet;
-
 class Vehicle : public TransportBase
 {
     protected:
diff --git a/src/server/game/Entities/Vehicle/VehicleDefines.h b/src/server/game/Entities/Vehicle/VehicleDefines.h
index 2a800008e8b..afd4b96e260 100644
--- a/src/server/game/Entities/Vehicle/VehicleDefines.h
+++ b/src/server/game/Entities/Vehicle/VehicleDefines.h
@@ -77,12 +77,12 @@ enum VehicleSpells
 
 struct PassengerInfo
 {
-    uint64 Guid;
+    ObjectGuid Guid;
     bool IsUnselectable;
 
     void Reset()
     {
-        Guid = 0;
+        Guid.Clear();
         IsUnselectable = false;
     }
 };
@@ -94,7 +94,7 @@ struct VehicleSeat
         Passenger.Reset();
     }
 
-    bool IsEmpty() const { return !Passenger.Guid; }
+    bool IsEmpty() const { return Passenger.Guid.IsEmpty(); }
 
     VehicleSeatEntry const* SeatInfo;
     PassengerInfo Passenger;
diff --git a/src/server/game/Events/GameEventMgr.cpp b/src/server/game/Events/GameEventMgr.cpp
index 217919ff574..92cc3181486 100644
--- a/src/server/game/Events/GameEventMgr.cpp
+++ b/src/server/game/Events/GameEventMgr.cpp
@@ -1123,7 +1123,7 @@ void GameEventMgr::UpdateEventNPCFlags(uint16 event_id)
         // get the creature data from the low guid to get the entry, to be able to find out the whole guid
         if (CreatureData const* data = sObjectMgr->GetCreatureData(itr->first))
         {
-            Creature* cr = HashMapHolder<Creature>::Find(MAKE_NEW_GUID(itr->first, data->id, HIGHGUID_UNIT));
+            Creature* cr = HashMapHolder<Creature>::Find(ObjectGuid(HIGHGUID_UNIT, data->id, itr->first));
             // if we found the creature, modify its npcflag
             if (cr)
             {
@@ -1254,7 +1254,7 @@ void GameEventMgr::GameEventUnspawn(int16 event_id)
         {
             sObjectMgr->RemoveCreatureFromGrid(*itr, data);
 
-            if (Creature* creature = ObjectAccessor::GetObjectInWorld(MAKE_NEW_GUID(*itr, data->id, HIGHGUID_UNIT), (Creature*)NULL))
+            if (Creature* creature = ObjectAccessor::GetObjectInWorld(ObjectGuid(HIGHGUID_UNIT, data->id, *itr), (Creature*)NULL))
                 creature->AddObjectToRemoveList();
         }
     }
@@ -1276,7 +1276,7 @@ void GameEventMgr::GameEventUnspawn(int16 event_id)
         {
             sObjectMgr->RemoveGameobjectFromGrid(*itr, data);
 
-            if (GameObject* pGameobject = ObjectAccessor::GetObjectInWorld(MAKE_NEW_GUID(*itr, data->id, HIGHGUID_GAMEOBJECT), (GameObject*)NULL))
+            if (GameObject* pGameobject = ObjectAccessor::GetObjectInWorld(ObjectGuid(HIGHGUID_GAMEOBJECT, data->id, *itr), (GameObject*)NULL))
                 pGameobject->AddObjectToRemoveList();
         }
     }
@@ -1302,7 +1302,7 @@ void GameEventMgr::ChangeEquipOrModel(int16 event_id, bool activate)
             continue;
 
         // Update if spawned
-        Creature* creature = ObjectAccessor::GetObjectInWorld(MAKE_NEW_GUID(itr->first, data->id, HIGHGUID_UNIT), (Creature*)NULL);
+        Creature* creature = ObjectAccessor::GetObjectInWorld(ObjectGuid(HIGHGUID_UNIT, data->id, itr->first), (Creature*)NULL);
         if (creature)
         {
             if (activate)
diff --git a/src/server/game/Globals/ObjectAccessor.cpp b/src/server/game/Globals/ObjectAccessor.cpp
index a464d0c57eb..16dabe4fcad 100644
--- a/src/server/game/Globals/ObjectAccessor.cpp
+++ b/src/server/game/Globals/ObjectAccessor.cpp
@@ -46,7 +46,7 @@ ObjectAccessor::ObjectAccessor() { }
 
 ObjectAccessor::~ObjectAccessor() { }
 
-template<class T> T* ObjectAccessor::GetObjectInWorld(uint32 mapid, float x, float y, uint64 guid, T* /*fake*/)
+template<class T> T* ObjectAccessor::GetObjectInWorld(uint32 mapid, float x, float y, ObjectGuid guid, T* /*fake*/)
 {
     T* obj = HashMapHolder<T>::Find(guid);
     if (!obj || obj->GetMapId() != mapid)
@@ -75,15 +75,15 @@ template<class T> T* ObjectAccessor::GetObjectInWorld(uint32 mapid, float x, flo
         return NULL;
 }
 
-Player* ObjectAccessor::GetObjectInWorld(uint64 guid, Player* /*typeSpecifier*/)
+Player* ObjectAccessor::GetObjectInWorld(ObjectGuid guid, Player* /*typeSpecifier*/)
 {
     Player* player = HashMapHolder<Player>::Find(guid);
     return player && player->IsInWorld() ? player : NULL;
 }
 
-WorldObject* ObjectAccessor::GetWorldObject(WorldObject const& p, uint64 guid)
+WorldObject* ObjectAccessor::GetWorldObject(WorldObject const& p, ObjectGuid guid)
 {
-    switch (GUID_HIPART(guid))
+    switch (guid.GetHigh())
     {
         case HIGHGUID_PLAYER:        return GetPlayer(p, guid);
         case HIGHGUID_TRANSPORT:
@@ -99,9 +99,9 @@ WorldObject* ObjectAccessor::GetWorldObject(WorldObject const& p, uint64 guid)
     }
 }
 
-Object* ObjectAccessor::GetObjectByTypeMask(WorldObject const& p, uint64 guid, uint32 typemask)
+Object* ObjectAccessor::GetObjectByTypeMask(WorldObject const& p, ObjectGuid guid, uint32 typemask)
 {
-    switch (GUID_HIPART(guid))
+    switch (guid.GetHigh())
     {
         case HIGHGUID_ITEM:
             if (typemask & TYPEMASK_ITEM && p.GetTypeId() == TYPEID_PLAYER)
@@ -135,82 +135,84 @@ Object* ObjectAccessor::GetObjectByTypeMask(WorldObject const& p, uint64 guid, u
                 return GetAreaTrigger(p, guid);
         case HIGHGUID_CORPSE:
             break;
+        default:
+            break;
     }
 
     return NULL;
 }
 
-Corpse* ObjectAccessor::GetCorpse(WorldObject const& u, uint64 guid)
+Corpse* ObjectAccessor::GetCorpse(WorldObject const& u, ObjectGuid guid)
 {
     return GetObjectInMap(guid, u.GetMap(), (Corpse*)NULL);
 }
 
-GameObject* ObjectAccessor::GetGameObject(WorldObject const& u, uint64 guid)
+GameObject* ObjectAccessor::GetGameObject(WorldObject const& u, ObjectGuid guid)
 {
     return GetObjectInMap(guid, u.GetMap(), (GameObject*)NULL);
 }
 
-Transport* ObjectAccessor::GetTransport(WorldObject const& u, uint64 guid)
+Transport* ObjectAccessor::GetTransport(WorldObject const& u, ObjectGuid guid)
 {
-    if (GUID_HIPART(guid) != HIGHGUID_MO_TRANSPORT)
+    if (!guid.IsMOTransport())
         return NULL;
 
     GameObject* go = GetGameObject(u, guid);
     return go ? go->ToTransport() : NULL;
 }
 
-DynamicObject* ObjectAccessor::GetDynamicObject(WorldObject const& u, uint64 guid)
+DynamicObject* ObjectAccessor::GetDynamicObject(WorldObject const& u, ObjectGuid guid)
 {
     return GetObjectInMap(guid, u.GetMap(), (DynamicObject*)NULL);
 }
 
-AreaTrigger* ObjectAccessor::GetAreaTrigger(WorldObject const& u, uint64 guid)
+AreaTrigger* ObjectAccessor::GetAreaTrigger(WorldObject const& u, ObjectGuid guid)
 {
     return GetObjectInMap(guid, u.GetMap(), (AreaTrigger*)NULL);
 }
 
-Unit* ObjectAccessor::GetUnit(WorldObject const& u, uint64 guid)
+Unit* ObjectAccessor::GetUnit(WorldObject const& u, ObjectGuid guid)
 {
     return GetObjectInMap(guid, u.GetMap(), (Unit*)NULL);
 }
 
-Creature* ObjectAccessor::GetCreature(WorldObject const& u, uint64 guid)
+Creature* ObjectAccessor::GetCreature(WorldObject const& u, ObjectGuid guid)
 {
     return GetObjectInMap(guid, u.GetMap(), (Creature*)NULL);
 }
 
-Pet* ObjectAccessor::GetPet(WorldObject const& u, uint64 guid)
+Pet* ObjectAccessor::GetPet(WorldObject const& u, ObjectGuid guid)
 {
     return GetObjectInMap(guid, u.GetMap(), (Pet*)NULL);
 }
 
-Player* ObjectAccessor::GetPlayer(WorldObject const& u, uint64 guid)
+Player* ObjectAccessor::GetPlayer(WorldObject const& u, ObjectGuid guid)
 {
     return GetObjectInMap(guid, u.GetMap(), (Player*)NULL);
 }
 
-Creature* ObjectAccessor::GetCreatureOrPetOrVehicle(WorldObject const& u, uint64 guid)
+Creature* ObjectAccessor::GetCreatureOrPetOrVehicle(WorldObject const& u, ObjectGuid guid)
 {
-    if (IS_PET_GUID(guid))
+    if (guid.IsPet())
         return GetPet(u, guid);
 
-    if (IS_CRE_OR_VEH_GUID(guid))
+    if (guid.IsCreatureOrVehicle())
         return GetCreature(u, guid);
 
     return NULL;
 }
 
-Pet* ObjectAccessor::FindPet(uint64 guid)
+Pet* ObjectAccessor::FindPet(ObjectGuid guid)
 {
     return GetObjectInWorld(guid, (Pet*)NULL);
 }
 
-Player* ObjectAccessor::FindPlayer(uint64 guid)
+Player* ObjectAccessor::FindPlayer(ObjectGuid guid)
 {
     return GetObjectInWorld(guid, (Player*)NULL);
 }
 
-Unit* ObjectAccessor::FindUnit(uint64 guid)
+Unit* ObjectAccessor::FindUnit(ObjectGuid guid)
 {
     return GetObjectInWorld(guid, (Unit*)NULL);
 }
@@ -244,7 +246,7 @@ void ObjectAccessor::SaveAllPlayers()
         itr->second->SaveToDB();
 }
 
-Corpse* ObjectAccessor::GetCorpseForPlayerGUID(uint64 guid)
+Corpse* ObjectAccessor::GetCorpseForPlayerGUID(ObjectGuid guid)
 {
     boost::shared_lock<boost::shared_mutex> lock(_corpseLock);
 
@@ -289,7 +291,7 @@ void ObjectAccessor::RemoveCorpse(Corpse* corpse)
 
         // build mapid*cellid -> guid_set map
         CellCoord cellCoord = Trinity::ComputeCellCoord(corpse->GetPositionX(), corpse->GetPositionY());
-        sObjectMgr->DeleteCorpseCellData(corpse->GetMapId(), cellCoord.GetId(), GUID_LOPART(corpse->GetOwnerGUID()));
+        sObjectMgr->DeleteCorpseCellData(corpse->GetMapId(), cellCoord.GetId(), corpse->GetOwnerGUID().GetCounter());
 
         i_player2corpse.erase(iter);
     }
@@ -308,7 +310,7 @@ void ObjectAccessor::AddCorpse(Corpse* corpse)
 
         // build mapid*cellid -> guid_set map
         CellCoord cellCoord = Trinity::ComputeCellCoord(corpse->GetPositionX(), corpse->GetPositionY());
-        sObjectMgr->AddCorpseCellData(corpse->GetMapId(), cellCoord.GetId(), GUID_LOPART(corpse->GetOwnerGUID()), corpse->GetInstanceId());
+        sObjectMgr->AddCorpseCellData(corpse->GetMapId(), cellCoord.GetId(), corpse->GetOwnerGUID().GetCounter(), corpse->GetInstanceId());
     }
 }
 
@@ -336,7 +338,7 @@ void ObjectAccessor::AddCorpsesToGrid(GridCoord const& gridpair, GridType& grid,
     }
 }
 
-Corpse* ObjectAccessor::ConvertCorpseForPlayer(uint64 player_guid, bool insignia /*=false*/)
+Corpse* ObjectAccessor::ConvertCorpseForPlayer(ObjectGuid player_guid, bool insignia /*=false*/)
 {
     Corpse* corpse = GetCorpseForPlayerGUID(player_guid);
     if (!corpse)
@@ -380,7 +382,7 @@ Corpse* ObjectAccessor::ConvertCorpseForPlayer(uint64 player_guid, bool insignia
         bones->Relocate(corpse->GetPositionX(), corpse->GetPositionY(), corpse->GetPositionZ(), corpse->GetOrientation());
 
         bones->SetUInt32Value(CORPSE_FIELD_FLAGS, CORPSE_FLAG_UNK2 | CORPSE_FLAG_BONES);
-        bones->SetUInt64Value(CORPSE_FIELD_OWNER, 0);
+        bones->SetGuidValue(CORPSE_FIELD_OWNER, ObjectGuid::Empty);
 
         for (uint8 i = 0; i < EQUIPMENT_SLOT_END; ++i)
         {
@@ -446,7 +448,7 @@ void ObjectAccessor::UnloadAll()
 
 /// Define the static members of HashMapHolder
 
-template <class T> std::unordered_map< uint64, T* > HashMapHolder<T>::_objectMap;
+template <class T> typename HashMapHolder<T>::MapType HashMapHolder<T>::_objectMap;
 template <class T> boost::shared_mutex HashMapHolder<T>::_lock;
 
 /// Global definitions for the hashmap storage
@@ -458,9 +460,9 @@ template class HashMapHolder<DynamicObject>;
 template class HashMapHolder<Creature>;
 template class HashMapHolder<Corpse>;
 
-template Player* ObjectAccessor::GetObjectInWorld<Player>(uint32 mapid, float x, float y, uint64 guid, Player* /*fake*/);
-template Pet* ObjectAccessor::GetObjectInWorld<Pet>(uint32 mapid, float x, float y, uint64 guid, Pet* /*fake*/);
-template Creature* ObjectAccessor::GetObjectInWorld<Creature>(uint32 mapid, float x, float y, uint64 guid, Creature* /*fake*/);
-template Corpse* ObjectAccessor::GetObjectInWorld<Corpse>(uint32 mapid, float x, float y, uint64 guid, Corpse* /*fake*/);
-template GameObject* ObjectAccessor::GetObjectInWorld<GameObject>(uint32 mapid, float x, float y, uint64 guid, GameObject* /*fake*/);
-template DynamicObject* ObjectAccessor::GetObjectInWorld<DynamicObject>(uint32 mapid, float x, float y, uint64 guid, DynamicObject* /*fake*/);
+template Player* ObjectAccessor::GetObjectInWorld<Player>(uint32 mapid, float x, float y, ObjectGuid guid, Player* /*fake*/);
+template Pet* ObjectAccessor::GetObjectInWorld<Pet>(uint32 mapid, float x, float y, ObjectGuid guid, Pet* /*fake*/);
+template Creature* ObjectAccessor::GetObjectInWorld<Creature>(uint32 mapid, float x, float y, ObjectGuid guid, Creature* /*fake*/);
+template Corpse* ObjectAccessor::GetObjectInWorld<Corpse>(uint32 mapid, float x, float y, ObjectGuid guid, Corpse* /*fake*/);
+template GameObject* ObjectAccessor::GetObjectInWorld<GameObject>(uint32 mapid, float x, float y, ObjectGuid guid, GameObject* /*fake*/);
+template DynamicObject* ObjectAccessor::GetObjectInWorld<DynamicObject>(uint32 mapid, float x, float y, ObjectGuid guid, DynamicObject* /*fake*/);
diff --git a/src/server/game/Globals/ObjectAccessor.h b/src/server/game/Globals/ObjectAccessor.h
index f466d8bd328..a23932fb702 100644
--- a/src/server/game/Globals/ObjectAccessor.h
+++ b/src/server/game/Globals/ObjectAccessor.h
@@ -47,7 +47,7 @@ class HashMapHolder
 {
     public:
 
-        typedef std::unordered_map<uint64, T*> MapType;
+        typedef std::unordered_map<ObjectGuid, T*> MapType;
 
         static void Insert(T* o)
         {
@@ -63,7 +63,7 @@ class HashMapHolder
             _objectMap.erase(o->GetGUID());
         }
 
-        static T* Find(uint64 guid)
+        static T* Find(ObjectGuid guid)
         {
             boost::shared_lock<boost::shared_mutex> lock(_lock);
 
@@ -100,44 +100,44 @@ class ObjectAccessor
             return &instance;
         }
 
-        template<class T> static T* GetObjectInOrOutOfWorld(uint64 guid, T* /*typeSpecifier*/)
+        template<class T> static T* GetObjectInOrOutOfWorld(ObjectGuid guid, T* /*typeSpecifier*/)
         {
             return HashMapHolder<T>::Find(guid);
         }
 
-        static Unit* GetObjectInOrOutOfWorld(uint64 guid, Unit* /*typeSpecifier*/)
+        static Unit* GetObjectInOrOutOfWorld(ObjectGuid guid, Unit* /*typeSpecifier*/)
         {
-            if (IS_PLAYER_GUID(guid))
+            if (guid.IsPlayer())
                 return (Unit*)GetObjectInOrOutOfWorld(guid, (Player*)NULL);
 
-            if (IS_PET_GUID(guid))
+            if (guid.IsPet())
                 return (Unit*)GetObjectInOrOutOfWorld(guid, (Pet*)NULL);
 
             return (Unit*)GetObjectInOrOutOfWorld(guid, (Creature*)NULL);
         }
 
         // returns object if is in world
-        template<class T> static T* GetObjectInWorld(uint64 guid, T* /*typeSpecifier*/)
+        template<class T> static T* GetObjectInWorld(ObjectGuid guid, T* /*typeSpecifier*/)
         {
             return HashMapHolder<T>::Find(guid);
         }
 
         // Player may be not in world while in ObjectAccessor
-        static Player* GetObjectInWorld(uint64 guid, Player* /*typeSpecifier*/);
+        static Player* GetObjectInWorld(ObjectGuid guid, Player* /*typeSpecifier*/);
 
-        static Unit* GetObjectInWorld(uint64 guid, Unit* /*typeSpecifier*/)
+        static Unit* GetObjectInWorld(ObjectGuid guid, Unit* /*typeSpecifier*/)
         {
-            if (IS_PLAYER_GUID(guid))
+            if (guid.IsPlayer())
                 return (Unit*)GetObjectInWorld(guid, (Player*)NULL);
 
-            if (IS_PET_GUID(guid))
+            if (guid.IsPet())
                 return (Unit*)GetObjectInWorld(guid, (Pet*)NULL);
 
             return (Unit*)GetObjectInWorld(guid, (Creature*)NULL);
         }
 
         // returns object if is in map
-        template<class T> static T* GetObjectInMap(uint64 guid, Map* map, T* /*typeSpecifier*/)
+        template<class T> static T* GetObjectInMap(ObjectGuid guid, Map* map, T* /*typeSpecifier*/)
         {
             ASSERT(map);
             if (T * obj = GetObjectInWorld(guid, (T*)NULL))
@@ -146,28 +146,28 @@ class ObjectAccessor
             return NULL;
         }
 
-        template<class T> static T* GetObjectInWorld(uint32 mapid, float x, float y, uint64 guid, T* /*fake*/);
+        template<class T> static T* GetObjectInWorld(uint32 mapid, float x, float y, ObjectGuid guid, T* /*fake*/);
 
         // these functions return objects only if in map of specified object
-        static WorldObject* GetWorldObject(WorldObject const&, uint64);
-        static Object* GetObjectByTypeMask(WorldObject const&, uint64, uint32 typemask);
-        static Corpse* GetCorpse(WorldObject const& u, uint64 guid);
-        static GameObject* GetGameObject(WorldObject const& u, uint64 guid);
-        static Transport* GetTransport(WorldObject const& u, uint64 guid);
-        static DynamicObject* GetDynamicObject(WorldObject const& u, uint64 guid);
-        static AreaTrigger* GetAreaTrigger(WorldObject const& u, uint64 guid);
-        static Unit* GetUnit(WorldObject const&, uint64 guid);
-        static Creature* GetCreature(WorldObject const& u, uint64 guid);
-        static Pet* GetPet(WorldObject const&, uint64 guid);
-        static Player* GetPlayer(WorldObject const&, uint64 guid);
-        static Creature* GetCreatureOrPetOrVehicle(WorldObject const&, uint64);
+        static WorldObject* GetWorldObject(WorldObject const&, ObjectGuid);
+        static Object* GetObjectByTypeMask(WorldObject const&, ObjectGuid, uint32 typemask);
+        static Corpse* GetCorpse(WorldObject const& u, ObjectGuid guid);
+        static GameObject* GetGameObject(WorldObject const& u, ObjectGuid guid);
+        static Transport* GetTransport(WorldObject const& u, ObjectGuid guid);
+        static DynamicObject* GetDynamicObject(WorldObject const& u, ObjectGuid guid);
+        static AreaTrigger* GetAreaTrigger(WorldObject const& u, ObjectGuid guid);
+        static Unit* GetUnit(WorldObject const&, ObjectGuid guid);
+        static Creature* GetCreature(WorldObject const& u, ObjectGuid guid);
+        static Pet* GetPet(WorldObject const&, ObjectGuid guid);
+        static Player* GetPlayer(WorldObject const&, ObjectGuid guid);
+        static Creature* GetCreatureOrPetOrVehicle(WorldObject const&, ObjectGuid);
 
         // these functions return objects if found in whole world
         // ACCESS LIKE THAT IS NOT THREAD SAFE
-        static Pet* FindPet(uint64);
-        static Player* FindPlayer(uint64);
-        static Creature* FindCreature(uint64);
-        static Unit* FindUnit(uint64);
+        static Pet* FindPet(ObjectGuid);
+        static Player* FindPlayer(ObjectGuid);
+        static Creature* FindCreature(ObjectGuid);
+        static Unit* FindUnit(ObjectGuid);
         static Player* FindPlayerByName(std::string const& name);
 
         // when using this, you must use the hashmapholder's lock
@@ -214,11 +214,11 @@ class ObjectAccessor
         }
 
         //Thread safe
-        Corpse* GetCorpseForPlayerGUID(uint64 guid);
+        Corpse* GetCorpseForPlayerGUID(ObjectGuid guid);
         void RemoveCorpse(Corpse* corpse);
         void AddCorpse(Corpse* corpse);
         void AddCorpsesToGrid(GridCoord const& gridpair, GridType& grid, Map* map);
-        Corpse* ConvertCorpseForPlayer(uint64 player_guid, bool insignia = false);
+        Corpse* ConvertCorpseForPlayer(ObjectGuid player_guid, bool insignia = false);
 
         //Thread unsafe
         void Update(uint32 diff);
@@ -230,7 +230,7 @@ class ObjectAccessor
         static void _buildPacket(Player*, Object*, UpdateDataMapType&);
         void _update();
 
-        typedef std::unordered_map<uint64, Corpse*> Player2CorpsesMapType;
+        typedef std::unordered_map<ObjectGuid, Corpse*> Player2CorpsesMapType;
         typedef std::unordered_map<Player*, UpdateData>::value_type UpdateDataValueType;
 
         std::set<Object*> i_objects;
diff --git a/src/server/game/Globals/ObjectMgr.cpp b/src/server/game/Globals/ObjectMgr.cpp
index d44c11f886a..2bdfb57adb4 100644
--- a/src/server/game/Globals/ObjectMgr.cpp
+++ b/src/server/game/Globals/ObjectMgr.cpp
@@ -1290,7 +1290,7 @@ void ObjectMgr::LoadCreatureModelInfo()
         // Checks
 
         if (!sCreatureDisplayInfoStore.LookupEntry(modelId))
-            TC_LOG_ERROR("sql.sql", "Table `creature_model_info` has model for not existed display id (%u).", modelId);
+            TC_LOG_ERROR("sql.sql", "Table `creature_model_info` has model for nonexistent display id (%u).", modelId);
 
         if (modelInfo.gender > GENDER_NONE)
         {
@@ -1300,7 +1300,7 @@ void ObjectMgr::LoadCreatureModelInfo()
 
         if (modelInfo.modelid_other_gender && !sCreatureDisplayInfoStore.LookupEntry(modelInfo.modelid_other_gender))
         {
-            TC_LOG_ERROR("sql.sql", "Table `creature_model_info` has not existed alt.gender model (%u) for existed display id (%u).", modelInfo.modelid_other_gender, modelId);
+            TC_LOG_ERROR("sql.sql", "Table `creature_model_info` has nonexistent alt.gender model (%u) for existed display id (%u).", modelInfo.modelid_other_gender, modelId);
             modelInfo.modelid_other_gender = 0;
         }
 
@@ -1336,7 +1336,7 @@ void ObjectMgr::LoadLinkedRespawn()
         uint32 linkedGuidLow = fields[1].GetUInt32();
         uint8  linkType = fields[2].GetUInt8();
 
-        uint64 guid = 0, linkedGuid = 0;
+        ObjectGuid guid, linkedGuid;
         bool error = false;
         switch (linkType)
         {
@@ -1373,8 +1373,8 @@ void ObjectMgr::LoadLinkedRespawn()
                     break;
                 }
 
-                guid = MAKE_NEW_GUID(guidLow, slave->id, HIGHGUID_UNIT);
-                linkedGuid = MAKE_NEW_GUID(linkedGuidLow, master->id, HIGHGUID_UNIT);
+                guid = ObjectGuid(HIGHGUID_UNIT, slave->id, guidLow);
+                linkedGuid = ObjectGuid(HIGHGUID_UNIT, master->id, linkedGuidLow);
                 break;
             }
             case CREATURE_TO_GO:
@@ -1410,8 +1410,8 @@ void ObjectMgr::LoadLinkedRespawn()
                     break;
                 }
 
-                guid = MAKE_NEW_GUID(guidLow, slave->id, HIGHGUID_UNIT);
-                linkedGuid = MAKE_NEW_GUID(linkedGuidLow, master->id, HIGHGUID_GAMEOBJECT);
+                guid = ObjectGuid(HIGHGUID_UNIT, slave->id, guidLow);
+                linkedGuid = ObjectGuid(HIGHGUID_GAMEOBJECT, master->id, linkedGuidLow);
                 break;
             }
             case GO_TO_GO:
@@ -1447,8 +1447,8 @@ void ObjectMgr::LoadLinkedRespawn()
                     break;
                 }
 
-                guid = MAKE_NEW_GUID(guidLow, slave->id, HIGHGUID_GAMEOBJECT);
-                linkedGuid = MAKE_NEW_GUID(linkedGuidLow, master->id, HIGHGUID_GAMEOBJECT);
+                guid = ObjectGuid(HIGHGUID_GAMEOBJECT, slave->id, guidLow);
+                linkedGuid = ObjectGuid(HIGHGUID_GAMEOBJECT, master->id, linkedGuidLow);
                 break;
             }
             case GO_TO_CREATURE:
@@ -1484,8 +1484,8 @@ void ObjectMgr::LoadLinkedRespawn()
                     break;
                 }
 
-                guid = MAKE_NEW_GUID(guidLow, slave->id, HIGHGUID_GAMEOBJECT);
-                linkedGuid = MAKE_NEW_GUID(linkedGuidLow, master->id, HIGHGUID_UNIT);
+                guid = ObjectGuid(HIGHGUID_GAMEOBJECT, slave->id, guidLow);
+                linkedGuid = ObjectGuid(HIGHGUID_UNIT, master->id, linkedGuidLow);
                 break;
             }
         }
@@ -1503,9 +1503,9 @@ bool ObjectMgr::SetCreatureLinkedRespawn(uint32 guidLow, uint32 linkedGuidLow)
     if (!guidLow)
         return false;
 
-    const CreatureData* master = GetCreatureData(guidLow);
+    CreatureData const* master = GetCreatureData(guidLow);
     ASSERT(master);
-    uint64 guid = MAKE_NEW_GUID(guidLow, master->id, HIGHGUID_UNIT);
+    ObjectGuid guid(HIGHGUID_UNIT, master->id, guidLow);
 
     if (!linkedGuidLow) // we're removing the linking
     {
@@ -1516,14 +1516,14 @@ bool ObjectMgr::SetCreatureLinkedRespawn(uint32 guidLow, uint32 linkedGuidLow)
         return true;
     }
 
-    const CreatureData* slave = GetCreatureData(linkedGuidLow);
+    CreatureData const* slave = GetCreatureData(linkedGuidLow);
     if (!slave)
     {
         TC_LOG_ERROR("sql.sql", "Creature '%u' linking to non-existent creature '%u'.", guidLow, linkedGuidLow);
         return false;
     }
 
-    const MapEntry* const map = sMapStore.LookupEntry(master->mapid);
+    MapEntry const* map = sMapStore.LookupEntry(master->mapid);
     if (!map || !map->Instanceable() || (master->mapid != slave->mapid))
     {
         TC_LOG_ERROR("sql.sql", "Creature '%u' linking to '%u' on an unpermitted map.", guidLow, linkedGuidLow);
@@ -1536,7 +1536,7 @@ bool ObjectMgr::SetCreatureLinkedRespawn(uint32 guidLow, uint32 linkedGuidLow)
         return false;
     }
 
-    uint64 linkedGuid = MAKE_NEW_GUID(linkedGuidLow, slave->id, HIGHGUID_UNIT);
+    ObjectGuid linkedGuid(HIGHGUID_UNIT, slave->id, linkedGuidLow);
 
     _linkedRespawnStore[guid] = linkedGuid;
     PreparedStatement *stmt = WorldDatabase.GetPreparedStatement(WORLD_REP_CREATURE_LINKED_RESPAWN);
@@ -1704,20 +1704,20 @@ void ObjectMgr::LoadCreatures()
         MapEntry const* mapEntry = sMapStore.LookupEntry(data.mapid);
         if (!mapEntry)
         {
-            TC_LOG_ERROR("sql.sql", "Table `creature` have creature (GUID: %u Entry: %u) that spawned at not existed map (Id: %u), skipped.", guid, data.id, data.mapid);
+            TC_LOG_ERROR("sql.sql", "Table `creature` has creature (GUID: %u) that spawned at nonexistent map (Id: %u), skipped.", guid, data.mapid);
             continue;
         }
 
         // Skip spawnMask check for transport maps
         if (!IsTransportMap(data.mapid) && data.spawnMask & ~spawnMasks[data.mapid])
-            TC_LOG_ERROR("sql.sql", "Table `creature` have creature (GUID: %u Entry: %u) that have wrong spawn mask %u including not supported difficulty modes for map (Id: %u) spawnMasks[data.mapid]: %u.", guid, data.id, data.spawnMask, data.mapid, spawnMasks[data.mapid]);
+            TC_LOG_ERROR("sql.sql", "Table `creature` has creature (GUID: %u) that have wrong spawn mask %u including unsupported difficulty modes for map (Id: %u).", guid, data.spawnMask, data.mapid);
 
         bool ok = true;
         for (uint32 diff = 0; diff < MAX_DIFFICULTY - 1 && ok; ++diff)
         {
             if (_difficultyEntries[diff].find(data.id) != _difficultyEntries[diff].end())
             {
-                TC_LOG_ERROR("sql.sql", "Table `creature` have creature (GUID: %u) that listed as difficulty %u template (entry: %u) in `creature_template`, skipped.",
+                TC_LOG_ERROR("sql.sql", "Table `creature` has creature (GUID: %u) that is listed as difficulty %u template (entry: %u) in `creature_template`, skipped.",
                     guid, diff + 1, data.id);
                 ok = false;
             }
@@ -1730,7 +1730,7 @@ void ObjectMgr::LoadCreatures()
         {
             if (!GetEquipmentInfo(data.id, data.equipmentId))
             {
-                TC_LOG_ERROR("sql.sql", "Table `creature` have creature (Entry: %u) with equipment_id %u not found in table `creature_equip_template`, set to no equipment.", data.id, data.equipmentId);
+                TC_LOG_ERROR("sql.sql", "Table `creature` has creature (Entry: %u) with equipment_id %u not found in table `creature_equip_template`, set to no equipment.", data.id, data.equipmentId);
                 data.equipmentId = 0;
             }
         }
@@ -1738,19 +1738,19 @@ void ObjectMgr::LoadCreatures()
         if (cInfo->flags_extra & CREATURE_FLAG_EXTRA_INSTANCE_BIND)
         {
             if (!mapEntry || !mapEntry->IsDungeon())
-                TC_LOG_ERROR("sql.sql", "Table `creature` have creature (GUID: %u Entry: %u) with `creature_template`.`flags_extra` including CREATURE_FLAG_EXTRA_INSTANCE_BIND but creature are not in instance.", guid, data.id);
+                TC_LOG_ERROR("sql.sql", "Table `creature` has creature (GUID: %u Entry: %u) with `creature_template`.`flags_extra` including CREATURE_FLAG_EXTRA_INSTANCE_BIND but creature is not in instance.", guid, data.id);
         }
 
         if (data.spawndist < 0.0f)
         {
-            TC_LOG_ERROR("sql.sql", "Table `creature` have creature (GUID: %u Entry: %u) with `spawndist`< 0, set to 0.", guid, data.id);
+            TC_LOG_ERROR("sql.sql", "Table `creature` has creature (GUID: %u Entry: %u) with `spawndist`< 0, set to 0.", guid, data.id);
             data.spawndist = 0.0f;
         }
         else if (data.movementType == RANDOM_MOTION_TYPE)
         {
             if (data.spawndist == 0.0f)
             {
-                TC_LOG_ERROR("sql.sql", "Table `creature` have creature (GUID: %u Entry: %u) with `MovementType`=1 (random movement) but with `spawndist`=0, replace by idle movement type (0).", guid, data.id);
+                TC_LOG_ERROR("sql.sql", "Table `creature` has creature (GUID: %u Entry: %u) with `MovementType`=1 (random movement) but with `spawndist`=0, replace by idle movement type (0).", guid, data.id);
                 data.movementType = IDLE_MOTION_TYPE;
             }
         }
@@ -1758,14 +1758,14 @@ void ObjectMgr::LoadCreatures()
         {
             if (data.spawndist != 0.0f)
             {
-                TC_LOG_ERROR("sql.sql", "Table `creature` have creature (GUID: %u Entry: %u) with `MovementType`=0 (idle) have `spawndist`<>0, set to 0.", guid, data.id);
+                TC_LOG_ERROR("sql.sql", "Table `creature` has creature (GUID: %u Entry: %u) with `MovementType`=0 (idle) have `spawndist`<>0, set to 0.", guid, data.id);
                 data.spawndist = 0.0f;
             }
         }
 
         if (data.phaseMask == 0)
         {
-            TC_LOG_ERROR("sql.sql", "Table `creature` have creature (GUID: %u Entry: %u) with `phaseMask`=0 (not visible for anyone), set to 1.", guid, data.id);
+            TC_LOG_ERROR("sql.sql", "Table `creature` has creature (GUID: %u Entry: %u) with `phaseMask`=0 (not visible for anyone), set to 1.", guid, data.id);
             data.phaseMask = 1;
         }
 
@@ -2051,7 +2051,7 @@ void ObjectMgr::LoadGameobjects()
         data.spawnMask      = fields[14].GetUInt8();
 
         if (!IsTransportMap(data.mapid) && data.spawnMask & ~spawnMasks[data.mapid])
-            TC_LOG_ERROR("sql.sql", "Table `gameobject` has gameobject (GUID: %u Entry: %u) that has wrong spawn mask %u including not supported difficulty modes for map (Id: %u), skip", guid, data.id, data.spawnMask, data.mapid);
+            TC_LOG_ERROR("sql.sql", "Table `gameobject` has gameobject (GUID: %u Entry: %u) that has wrong spawn mask %u including unsupported difficulty modes for map (Id: %u), skip", guid, data.id, data.spawnMask, data.mapid);
 
         data.phaseMask      = fields[15].GetUInt32();
         int16 gameEvent     = fields[16].GetInt8();
@@ -2127,15 +2127,13 @@ void ObjectMgr::RemoveGameobjectFromGrid(uint32 guid, GameObjectData const* data
 
 Player* ObjectMgr::GetPlayerByLowGUID(uint32 lowguid) const
 {
-    uint64 guid = MAKE_NEW_GUID(lowguid, 0, HIGHGUID_PLAYER);
+    ObjectGuid guid(HIGHGUID_PLAYER, lowguid);
     return ObjectAccessor::FindPlayer(guid);
 }
 
 // name must be checked to correctness (if received) before call this function
-uint64 ObjectMgr::GetPlayerGUIDByName(std::string const& name) const
+ObjectGuid ObjectMgr::GetPlayerGUIDByName(std::string const& name) const
 {
-    uint64 guid = 0;
-
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_GUID_BY_NAME);
 
     stmt->setString(0, name);
@@ -2143,12 +2141,12 @@ uint64 ObjectMgr::GetPlayerGUIDByName(std::string const& name) const
     PreparedQueryResult result = CharacterDatabase.Query(stmt);
 
     if (result)
-        guid = MAKE_NEW_GUID((*result)[0].GetUInt32(), 0, HIGHGUID_PLAYER);
+        return ObjectGuid(HIGHGUID_PLAYER, (*result)[0].GetUInt32());
 
-    return guid;
+    return ObjectGuid::Empty;
 }
 
-bool ObjectMgr::GetPlayerNameByGUID(uint64 guid, std::string& name) const
+bool ObjectMgr::GetPlayerNameByGUID(ObjectGuid guid, std::string& name) const
 {
     // prevent DB access for online player
     if (Player* player = ObjectAccessor::FindPlayer(guid))
@@ -2159,7 +2157,7 @@ bool ObjectMgr::GetPlayerNameByGUID(uint64 guid, std::string& name) const
 
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_CHARACTER_NAME);
 
-    stmt->setUInt32(0, GUID_LOPART(guid));
+    stmt->setUInt32(0, guid.GetCounter());
 
     PreparedQueryResult result = CharacterDatabase.Query(stmt);
 
@@ -2172,7 +2170,7 @@ bool ObjectMgr::GetPlayerNameByGUID(uint64 guid, std::string& name) const
     return false;
 }
 
-uint32 ObjectMgr::GetPlayerTeamByGUID(uint64 guid) const
+uint32 ObjectMgr::GetPlayerTeamByGUID(ObjectGuid guid) const
 {
     // prevent DB access for online player
     if (Player* player = ObjectAccessor::FindPlayer(guid))
@@ -2182,7 +2180,7 @@ uint32 ObjectMgr::GetPlayerTeamByGUID(uint64 guid) const
 
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_CHAR_RACE);
 
-    stmt->setUInt32(0, GUID_LOPART(guid));
+    stmt->setUInt32(0, guid.GetCounter());
 
     PreparedQueryResult result = CharacterDatabase.Query(stmt);
 
@@ -2195,7 +2193,7 @@ uint32 ObjectMgr::GetPlayerTeamByGUID(uint64 guid) const
     return 0;
 }
 
-uint32 ObjectMgr::GetPlayerAccountIdByGUID(uint64 guid) const
+uint32 ObjectMgr::GetPlayerAccountIdByGUID(ObjectGuid guid) const
 {
     // prevent DB access for online player
     if (Player* player = ObjectAccessor::FindPlayer(guid))
@@ -2205,7 +2203,7 @@ uint32 ObjectMgr::GetPlayerAccountIdByGUID(uint64 guid) const
 
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_ACCOUNT_BY_GUID);
 
-    stmt->setUInt32(0, GUID_LOPART(guid));
+    stmt->setUInt32(0, guid.GetCounter());
 
     PreparedQueryResult result = CharacterDatabase.Query(stmt);
 
@@ -4775,7 +4773,7 @@ void ObjectMgr::LoadScripts(ScriptsType type)
                     info->type == GAMEOBJECT_TYPE_BUTTON      ||
                     info->type == GAMEOBJECT_TYPE_TRAP)
                 {
-                    TC_LOG_ERROR("sql.sql", "Table `%s` have gameobject type (%u) unsupported by command SCRIPT_COMMAND_RESPAWN_GAMEOBJECT for script id %u",
+                    TC_LOG_ERROR("sql.sql", "Table `%s` has gameobject type (%u) unsupported by command SCRIPT_COMMAND_RESPAWN_GAMEOBJECT for script id %u",
                         tableName.c_str(), info->entry, tmp.id);
                     continue;
                 }
@@ -4821,7 +4819,7 @@ void ObjectMgr::LoadScripts(ScriptsType type)
 
                 if (info->type != GAMEOBJECT_TYPE_DOOR)
                 {
-                    TC_LOG_ERROR("sql.sql", "Table `%s` has gameobject type (%u) non supported by command %s for script id %u",
+                    TC_LOG_ERROR("sql.sql", "Table `%s` has gameobject type (%u) unsupported by command %s for script id %u",
                         tableName.c_str(), info->entry, GetScriptCommandName(tmp.command).c_str(), tmp.id);
                     continue;
                 }
@@ -5537,7 +5535,7 @@ void ObjectMgr::ReturnOrDeleteOldMails(bool serverUp)
 
         Player* player = NULL;
         if (serverUp)
-            player = ObjectAccessor::FindPlayer((uint64)m->receiver);
+            player = ObjectAccessor::FindPlayer(ObjectGuid(HIGHGUID_PLAYER, m->receiver));
 
         if (player && player->m_mailsLoaded)
         {                                                   // this code will run very improbably (the time is between 4 and 5 am, in game is online a player, who has old mail
@@ -6344,7 +6342,7 @@ void ObjectMgr::SetHighestGuids()
     if (result)
         _hiItemGuid = (*result)[0].GetUInt32()+1;
 
-    // Cleanup other tables from not existed guids ( >= _hiItemGuid)
+    // Cleanup other tables from nonexistent guids ( >= _hiItemGuid)
     CharacterDatabase.PExecute("DELETE FROM character_inventory WHERE item >= '%u'", _hiItemGuid);      // One-time query
     CharacterDatabase.PExecute("DELETE FROM mail_items WHERE item_guid >= '%u'", _hiItemGuid);          // One-time query
     CharacterDatabase.PExecute("DELETE FROM auctionhouse WHERE itemguid >= '%u'", _hiItemGuid);         // One-time query
@@ -7047,7 +7045,7 @@ void ObjectMgr::LoadReputationOnKill()
 
         if (!GetCreatureTemplate(creature_id))
         {
-            TC_LOG_ERROR("sql.sql", "Table `creature_onkill_reputation` have data for not existed creature entry (%u), skipped", creature_id);
+            TC_LOG_ERROR("sql.sql", "Table `creature_onkill_reputation` has data for nonexistent creature entry (%u), skipped", creature_id);
             continue;
         }
 
@@ -7473,9 +7471,9 @@ void ObjectMgr::LoadGameobjectQuestStarters()
     {
         GameObjectTemplate const* goInfo = GetGameObjectTemplate(itr->first);
         if (!goInfo)
-            TC_LOG_ERROR("sql.sql", "Table `gameobject_queststarter` have data for not existed gameobject entry (%u) and existed quest %u", itr->first, itr->second);
+            TC_LOG_ERROR("sql.sql", "Table `gameobject_queststarter` has data for nonexistent gameobject entry (%u) and existed quest %u", itr->first, itr->second);
         else if (goInfo->type != GAMEOBJECT_TYPE_QUESTGIVER)
-            TC_LOG_ERROR("sql.sql", "Table `gameobject_queststarter` have data gameobject entry (%u) for quest %u, but GO is not GAMEOBJECT_TYPE_QUESTGIVER", itr->first, itr->second);
+            TC_LOG_ERROR("sql.sql", "Table `gameobject_queststarter` has data gameobject entry (%u) for quest %u, but GO is not GAMEOBJECT_TYPE_QUESTGIVER", itr->first, itr->second);
     }
 }
 
@@ -7487,9 +7485,9 @@ void ObjectMgr::LoadGameobjectQuestEnders()
     {
         GameObjectTemplate const* goInfo = GetGameObjectTemplate(itr->first);
         if (!goInfo)
-            TC_LOG_ERROR("sql.sql", "Table `gameobject_questender` have data for not existed gameobject entry (%u) and existed quest %u", itr->first, itr->second);
+            TC_LOG_ERROR("sql.sql", "Table `gameobject_questender` has data for nonexistent gameobject entry (%u) and existed quest %u", itr->first, itr->second);
         else if (goInfo->type != GAMEOBJECT_TYPE_QUESTGIVER)
-            TC_LOG_ERROR("sql.sql", "Table `gameobject_questender` have data gameobject entry (%u) for quest %u, but GO is not GAMEOBJECT_TYPE_QUESTGIVER", itr->first, itr->second);
+            TC_LOG_ERROR("sql.sql", "Table `gameobject_questender` has data gameobject entry (%u) for quest %u, but GO is not GAMEOBJECT_TYPE_QUESTGIVER", itr->first, itr->second);
     }
 }
 
@@ -7501,7 +7499,7 @@ void ObjectMgr::LoadCreatureQuestStarters()
     {
         CreatureTemplate const* cInfo = GetCreatureTemplate(itr->first);
         if (!cInfo)
-            TC_LOG_ERROR("sql.sql", "Table `creature_queststarter` have data for not existed creature entry (%u) and existed quest %u", itr->first, itr->second);
+            TC_LOG_ERROR("sql.sql", "Table `creature_queststarter` has data for nonexistent creature entry (%u) and existed quest %u", itr->first, itr->second);
         else if (!(cInfo->npcflag & UNIT_NPC_FLAG_QUESTGIVER))
             TC_LOG_ERROR("sql.sql", "Table `creature_queststarter` has creature entry (%u) for quest %u, but npcflag does not include UNIT_NPC_FLAG_QUESTGIVER", itr->first, itr->second);
     }
@@ -7515,7 +7513,7 @@ void ObjectMgr::LoadCreatureQuestEnders()
     {
         CreatureTemplate const* cInfo = GetCreatureTemplate(itr->first);
         if (!cInfo)
-            TC_LOG_ERROR("sql.sql", "Table `creature_questender` have data for not existed creature entry (%u) and existed quest %u", itr->first, itr->second);
+            TC_LOG_ERROR("sql.sql", "Table `creature_questender` has data for nonexistent creature entry (%u) and existed quest %u", itr->first, itr->second);
         else if (!(cInfo->npcflag & UNIT_NPC_FLAG_QUESTGIVER))
             TC_LOG_ERROR("sql.sql", "Table `creature_questender` has creature entry (%u) for quest %u, but npcflag does not include UNIT_NPC_FLAG_QUESTGIVER", itr->first, itr->second);
     }
@@ -7546,7 +7544,7 @@ void ObjectMgr::LoadReservedPlayersNames()
         std::wstring wstr;
         if (!Utf8toWStr (name, wstr))
         {
-            TC_LOG_ERROR("misc", "Table `reserved_name` have invalid name: %s", name.c_str());
+            TC_LOG_ERROR("misc", "Table `reserved_name` has invalid name: %s", name.c_str());
             continue;
         }
 
@@ -7770,112 +7768,48 @@ void ObjectMgr::LoadGameObjectForQuests()
     TC_LOG_INFO("server.loading", ">> Loaded %u GameObjects for quests in %u ms", count, GetMSTimeDiffToNow(oldMSTime));
 }
 
-bool ObjectMgr::LoadTrinityStrings(const char* table, int32 min_value, int32 max_value)
+bool ObjectMgr::LoadTrinityStrings()
 {
     uint32 oldMSTime = getMSTime();
 
-    int32 start_value = min_value;
-    int32 end_value   = max_value;
-    // some string can have negative indexes range
-    if (start_value < 0)
-    {
-        if (end_value >= start_value)
-        {
-            TC_LOG_ERROR("sql.sql", "Table '%s' attempt loaded with invalid range (%d - %d), strings not loaded.", table, min_value, max_value);
-            return false;
-        }
-
-        // real range (max+1, min+1) exaple: (-10, -1000) -> -999...-10+1
-        std::swap(start_value, end_value);
-        ++start_value;
-        ++end_value;
-    }
-    else
-    {
-        if (start_value >= end_value)
-        {
-            TC_LOG_ERROR("sql.sql", "Table '%s' attempt loaded with invalid range (%d - %d), strings not loaded.", table, min_value, max_value);
-            return false;
-        }
-    }
-
-    // cleanup affected map part for reloading case
-    for (TrinityStringLocaleContainer::iterator itr = _trinityStringLocaleStore.begin(); itr != _trinityStringLocaleStore.end();)
-    {
-        if (itr->first >= start_value && itr->first < end_value)
-            _trinityStringLocaleStore.erase(itr++);
-        else
-            ++itr;
-    }
-
-    QueryResult result = WorldDatabase.PQuery("SELECT entry, content_default, content_loc1, content_loc2, content_loc3, content_loc4, content_loc5, content_loc6, content_loc7, content_loc8 FROM %s", table);
+    _trinityStringStore.clear(); // for reload case
 
+    QueryResult result = WorldDatabase.Query("SELECT entry, content_default, content_loc1, content_loc2, content_loc3, content_loc4, content_loc5, content_loc6, content_loc7, content_loc8 FROM trinity_string");
     if (!result)
     {
-        if (min_value == MIN_TRINITY_STRING_ID)              // error only in case internal strings
-            TC_LOG_ERROR("server.loading", ">> Loaded 0 trinity strings. DB table `%s` is empty. Cannot continue.", table);
-        else
-            TC_LOG_INFO("server.loading", ">> Loaded 0 string templates. DB table `%s` is empty.", table);
-
+        TC_LOG_ERROR("server.loading", ">> Loaded 0 trinity strings. DB table `trinity_string` is empty.");
         return false;
     }
 
-    uint32 count = 0;
-
     do
     {
         Field* fields = result->Fetch();
 
-        int32 entry = fields[0].GetInt32();
+        uint32 entry = fields[0].GetUInt32();
 
-        if (entry == 0)
-        {
-            TC_LOG_ERROR("sql.sql", "Table `%s` contain reserved entry 0, ignored.", table);
-            continue;
-        }
-        else if (entry < start_value || entry >= end_value)
-        {
-            TC_LOG_ERROR("sql.sql", "Table `%s` contain entry %i out of allowed range (%d - %d), ignored.", table, entry, min_value, max_value);
-            continue;
-        }
+        TrinityString& data = _trinityStringStore[entry];
 
-        TrinityStringLocale& data = _trinityStringLocaleStore[entry];
-
-        if (!data.Content.empty())
-        {
-            TC_LOG_ERROR("sql.sql", "Table `%s` contain data for already loaded entry  %i (from another table?), ignored.", table, entry);
-            continue;
-        }
-
-        data.Content.resize(1);
-        ++count;
+        data.Content.resize(DEFAULT_LOCALE + 1);
 
         for (int8 i = TOTAL_LOCALES - 1; i >= 0; --i)
             AddLocaleString(fields[i + 1].GetString(), LocaleConstant(i), data.Content);
-    } while (result->NextRow());
-
-    if (min_value == MIN_TRINITY_STRING_ID)
-        TC_LOG_INFO("server.loading", ">> Loaded %u Trinity strings from table %s in %u ms", count, table, GetMSTimeDiffToNow(oldMSTime));
-    else
-        TC_LOG_INFO("server.loading", ">> Loaded %u string templates from %s in %u ms", count, table, GetMSTimeDiffToNow(oldMSTime));
+    }
+    while (result->NextRow());
 
+    TC_LOG_INFO("server.loading", ">> Loaded " SZFMTD " trinity strings in %u ms", _trinityStringStore.size(), GetMSTimeDiffToNow(oldMSTime));
     return true;
 }
 
-const char *ObjectMgr::GetTrinityString(int32 entry, LocaleConstant locale_idx) const
+char const* ObjectMgr::GetTrinityString(uint32 entry, LocaleConstant locale) const
 {
-    if (TrinityStringLocale const* msl = GetTrinityStringLocale(entry))
+    if (TrinityString const* ts = GetTrinityString(entry))
     {
-        if (msl->Content.size() > size_t(locale_idx) && !msl->Content[locale_idx].empty())
-            return msl->Content[locale_idx].c_str();
-
-        return msl->Content[DEFAULT_LOCALE].c_str();
+        if (ts->Content.size() > size_t(locale) && !ts->Content[locale].empty())
+            return ts->Content[locale].c_str();
+        return ts->Content[DEFAULT_LOCALE].c_str();
     }
 
-    if (entry > 0)
-        TC_LOG_ERROR("sql.sql", "Entry %i not found in `trinity_string` table.", entry);
-    else
-        TC_LOG_ERROR("sql.sql", "Trinity string entry %i not found in DB.", entry);
+    TC_LOG_ERROR("sql.sql", "Trinity string entry %u not found in DB.", entry);
     return "<error>";
 }
 
@@ -8183,25 +8117,25 @@ void ObjectMgr::LoadMailLevelRewards()
 
         if (level > MAX_LEVEL)
         {
-            TC_LOG_ERROR("sql.sql", "Table `mail_level_reward` have data for level %u that more supported by client (%u), ignoring.", level, MAX_LEVEL);
+            TC_LOG_ERROR("sql.sql", "Table `mail_level_reward` has data for level %u that more supported by client (%u), ignoring.", level, MAX_LEVEL);
             continue;
         }
 
         if (!(raceMask & RACEMASK_ALL_PLAYABLE))
         {
-            TC_LOG_ERROR("sql.sql", "Table `mail_level_reward` have raceMask (%u) for level %u that not include any player races, ignoring.", raceMask, level);
+            TC_LOG_ERROR("sql.sql", "Table `mail_level_reward` has raceMask (%u) for level %u that not include any player races, ignoring.", raceMask, level);
             continue;
         }
 
         if (!sMailTemplateStore.LookupEntry(mailTemplateId))
         {
-            TC_LOG_ERROR("sql.sql", "Table `mail_level_reward` have invalid mailTemplateId (%u) for level %u that invalid not include any player races, ignoring.", mailTemplateId, level);
+            TC_LOG_ERROR("sql.sql", "Table `mail_level_reward` has invalid mailTemplateId (%u) for level %u that invalid not include any player races, ignoring.", mailTemplateId, level);
             continue;
         }
 
         if (!GetCreatureTemplate(senderEntry))
         {
-            TC_LOG_ERROR("sql.sql", "Table `mail_level_reward` have not existed sender creature entry (%u) for level %u that invalid not include any player races, ignoring.", senderEntry, level);
+            TC_LOG_ERROR("sql.sql", "Table `mail_level_reward` has nonexistent sender creature entry (%u) for level %u that invalid not include any player races, ignoring.", senderEntry, level);
             continue;
         }
 
@@ -8596,7 +8530,7 @@ bool ObjectMgr::IsVendorItemValid(uint32 vendor_entry, uint32 id, int32 maxcount
         if (player)
             ChatHandler(player->GetSession()).SendSysMessage(LANG_COMMAND_VENDORSELECTION);
         else
-            TC_LOG_ERROR("sql.sql", "Table `(game_event_)npc_vendor` have data for not existed creature template (Entry: %u), ignore", vendor_entry);
+            TC_LOG_ERROR("sql.sql", "Table `(game_event_)npc_vendor` has data for nonexistent creature template (Entry: %u), ignore", vendor_entry);
         return false;
     }
 
@@ -8607,7 +8541,7 @@ bool ObjectMgr::IsVendorItemValid(uint32 vendor_entry, uint32 id, int32 maxcount
             if (player)
                 ChatHandler(player->GetSession()).SendSysMessage(LANG_COMMAND_VENDORSELECTION);
             else
-                TC_LOG_ERROR("sql.sql", "Table `(game_event_)npc_vendor` have data for not creature template (Entry: %u) without vendor flag, ignore", vendor_entry);
+                TC_LOG_ERROR("sql.sql", "Table `(game_event_)npc_vendor` has data for creature template (Entry: %u) without vendor flag, ignore", vendor_entry);
 
             if (skip_vendors)
                 skip_vendors->insert(vendor_entry);
@@ -8630,7 +8564,7 @@ bool ObjectMgr::IsVendorItemValid(uint32 vendor_entry, uint32 id, int32 maxcount
         if (player)
             ChatHandler(player->GetSession()).PSendSysMessage(LANG_EXTENDED_COST_NOT_EXIST, ExtendedCost);
         else
-            TC_LOG_ERROR("sql.sql", "Table `(game_event_)npc_vendor` have Item (Entry: %u) with wrong ExtendedCost (%u) for vendor (%u), ignore", id, ExtendedCost, vendor_entry);
+            TC_LOG_ERROR("sql.sql", "Table `(game_event_)npc_vendor` has Item (Entry: %u) with wrong ExtendedCost (%u) for vendor (%u), ignore", id, ExtendedCost, vendor_entry);
         return false;
     }
 
diff --git a/src/server/game/Globals/ObjectMgr.h b/src/server/game/Globals/ObjectMgr.h
index 0931ab9616a..abd452eaeb0 100644
--- a/src/server/game/Globals/ObjectMgr.h
+++ b/src/server/game/Globals/ObjectMgr.h
@@ -490,19 +490,15 @@ struct CellObjectGuids
 typedef std::unordered_map<uint32/*cell_id*/, CellObjectGuids> CellObjectGuidsMap;
 typedef std::unordered_map<uint32/*(mapid, spawnMode) pair*/, CellObjectGuidsMap> MapObjectGuids;
 
-// Trinity string ranges
-#define MIN_TRINITY_STRING_ID           1                    // 'trinity_string'
-#define MAX_TRINITY_STRING_ID           2000000000
-
 // Trinity Trainer Reference start range
 #define TRINITY_TRAINER_START_REF      200000
 
-struct TrinityStringLocale
+struct TrinityString
 {
     StringVector Content;
 };
 
-typedef std::map<uint64, uint64> LinkedRespawnContainer;
+typedef std::map<ObjectGuid, ObjectGuid> LinkedRespawnContainer;
 typedef std::unordered_map<uint32, CreatureData> CreatureDataContainer;
 typedef std::unordered_map<uint32, GameObjectData> GameObjectDataContainer;
 typedef std::map<TempSummonGroupKey, std::vector<TempSummonData> > TempSummonDataContainer;
@@ -512,10 +508,11 @@ typedef std::unordered_map<uint32, ItemLocale> ItemLocaleContainer;
 typedef std::unordered_map<uint32, QuestLocale> QuestLocaleContainer;
 typedef std::unordered_map<uint32, NpcTextLocale> NpcTextLocaleContainer;
 typedef std::unordered_map<uint32, PageTextLocale> PageTextLocaleContainer;
-typedef std::unordered_map<int32, TrinityStringLocale> TrinityStringLocaleContainer;
 typedef std::unordered_map<uint32, GossipMenuItemsLocale> GossipMenuItemsLocaleContainer;
 typedef std::unordered_map<uint32, PointOfInterestLocale> PointOfInterestLocaleContainer;
 
+typedef std::unordered_map<uint32, TrinityString> TrinityStringContainer;
+
 typedef std::multimap<uint32, uint32> QuestRelations; // unit/go -> quest
 typedef std::multimap<uint32, uint32> QuestRelationsReverse; // quest -> unit/go
 typedef std::pair<QuestRelations::const_iterator, QuestRelations::const_iterator> QuestRelationBounds;
@@ -785,7 +782,7 @@ class ObjectMgr
 
         void GetPlayerLevelInfo(uint32 race, uint32 class_, uint8 level, PlayerLevelInfo* info) const;
 
-        uint64 GetPlayerGUIDByName(std::string const& name) const;
+        ObjectGuid GetPlayerGUIDByName(std::string const& name) const;
 
         /**
         * Retrieves the player name by guid.
@@ -800,9 +797,9 @@ class ObjectMgr
         *
         * @return true if player was found, false otherwise
         */
-        bool GetPlayerNameByGUID(uint64 guid, std::string& name) const;
-        uint32 GetPlayerTeamByGUID(uint64 guid) const;
-        uint32 GetPlayerAccountIdByGUID(uint64 guid) const;
+        bool GetPlayerNameByGUID(ObjectGuid guid, std::string& name) const;
+        uint32 GetPlayerTeamByGUID(ObjectGuid guid) const;
+        uint32 GetPlayerAccountIdByGUID(ObjectGuid guid) const;
         uint32 GetPlayerAccountIdByPlayerName(std::string const& name) const;
 
         uint32 GetNearestTaxiNode(float x, float y, float z, uint32 mapid, uint32 team);
@@ -977,6 +974,8 @@ class ObjectMgr
             return _creatureQuestInvolvedRelationsReverse.equal_range(questId);
         }
 
+        bool LoadTrinityStrings();
+
         void LoadEventScripts();
         void LoadSpellScripts();
         void LoadWaypointScripts();
@@ -986,8 +985,6 @@ class ObjectMgr
 
         void LoadBroadcastTexts();
         void LoadBroadcastTextLocales();
-        bool LoadTrinityStrings(char const* table, int32 min_value, int32 max_value);
-        bool LoadTrinityStrings() { return LoadTrinityStrings("trinity_string", MIN_TRINITY_STRING_ID, MAX_TRINITY_STRING_ID); }
         void LoadCreatureClassLevelStats();
         void LoadCreatureLocales();
         void LoadGraveyardOrientations();
@@ -1144,10 +1141,10 @@ class ObjectMgr
         }
         CreatureData& NewOrExistCreatureData(uint32 guid) { return _creatureDataStore[guid]; }
         void DeleteCreatureData(uint32 guid);
-        uint64 GetLinkedRespawnGuid(uint64 guid) const
+        ObjectGuid GetLinkedRespawnGuid(ObjectGuid guid) const
         {
             LinkedRespawnContainer::const_iterator itr = _linkedRespawnStore.find(guid);
-            if (itr == _linkedRespawnStore.end()) return 0;
+            if (itr == _linkedRespawnStore.end()) return ObjectGuid::Empty;
             return itr->second;
         }
         CreatureLocale const* GetCreatureLocale(uint32 entry) const
@@ -1208,14 +1205,15 @@ class ObjectMgr
         GameObjectData& NewGOData(uint32 guid) { return _gameObjectDataStore[guid]; }
         void DeleteGOData(uint32 guid);
 
-        TrinityStringLocale const* GetTrinityStringLocale(int32 entry) const
+        TrinityString const* GetTrinityString(uint32 entry) const
         {
-            TrinityStringLocaleContainer::const_iterator itr = _trinityStringLocaleStore.find(entry);
-            if (itr == _trinityStringLocaleStore.end()) return NULL;
+            TrinityStringContainer::const_iterator itr = _trinityStringStore.find(entry);
+            if (itr == _trinityStringStore.end())
+                return nullptr;
             return &itr->second;
         }
-        const char *GetTrinityString(int32 entry, LocaleConstant locale_idx) const;
-        const char *GetTrinityStringForDBCLocale(int32 entry) const { return GetTrinityString(entry, DBCLocaleIndex); }
+        char const* GetTrinityString(uint32 entry, LocaleConstant locale) const;
+        char const* GetTrinityStringForDBCLocale(uint32 entry) const { return GetTrinityString(entry, DBCLocaleIndex); }
         LocaleConstant GetDBCLocaleIndex() const { return DBCLocaleIndex; }
         void SetDBCLocaleIndex(LocaleConstant locale) { DBCLocaleIndex = locale; }
 
@@ -1485,10 +1483,11 @@ class ObjectMgr
         QuestLocaleContainer _questLocaleStore;
         NpcTextLocaleContainer _npcTextLocaleStore;
         PageTextLocaleContainer _pageTextLocaleStore;
-        TrinityStringLocaleContainer _trinityStringLocaleStore;
         GossipMenuItemsLocaleContainer _gossipMenuItemsLocaleStore;
         PointOfInterestLocaleContainer _pointOfInterestLocaleStore;
 
+        TrinityStringContainer _trinityStringStore;
+
         CacheVendorItemContainer _cacheVendorItemStore;
         CacheTrainerSpellContainer _cacheTrainerSpellStore;
 
diff --git a/src/server/game/Grids/Notifiers/GridNotifiers.cpp b/src/server/game/Grids/Notifiers/GridNotifiers.cpp
index 8040728133f..d5b1022b351 100644
--- a/src/server/game/Grids/Notifiers/GridNotifiers.cpp
+++ b/src/server/game/Grids/Notifiers/GridNotifiers.cpp
@@ -65,12 +65,12 @@ void VisibleNotifier::SendToSelf()
         }
     }
 
-    for (Player::ClientGUIDs::const_iterator it = vis_guids.begin();it != vis_guids.end(); ++it)
+    for (GuidSet::const_iterator it = vis_guids.begin(); it != vis_guids.end(); ++it)
     {
         i_player.m_clientGUIDs.erase(*it);
         i_data.AddOutOfRangeGUID(*it);
 
-        if (IS_PLAYER_GUID(*it))
+        if (it->IsPlayer())
         {
             Player* player = ObjectAccessor::FindPlayer(*it);
             if (player && player->IsInWorld() && !player->isNeedNotify(NOTIFY_VISIBILITY_CHANGED))
diff --git a/src/server/game/Grids/Notifiers/GridNotifiers.h b/src/server/game/Grids/Notifiers/GridNotifiers.h
index d4b75b026f6..d78f7c2e44f 100644
--- a/src/server/game/Grids/Notifiers/GridNotifiers.h
+++ b/src/server/game/Grids/Notifiers/GridNotifiers.h
@@ -44,7 +44,7 @@ namespace Trinity
         Player &i_player;
         UpdateData i_data;
         std::set<Unit*> i_visibleNow;
-        Player::ClientGUIDs vis_guids;
+        GuidSet vis_guids;
 
         VisibleNotifier(Player &player) : i_player(player), i_data(player.GetMapId()), vis_guids(player.m_clientGUIDs) { }
         template<class T> void Visit(GridRefManager<T> &m);
@@ -1367,14 +1367,14 @@ namespace Trinity
     class ObjectGUIDCheck
     {
         public:
-            ObjectGUIDCheck(uint64 GUID) : _GUID(GUID) { }
+            ObjectGUIDCheck(ObjectGuid GUID) : _GUID(GUID) { }
             bool operator()(WorldObject* object)
             {
                 return object->GetGUID() == _GUID;
             }
 
         private:
-            uint64 _GUID;
+            ObjectGuid _GUID;
     };
 
     class HeightDifferenceCheck
@@ -1399,7 +1399,7 @@ namespace Trinity
     class UnitAuraCheck
     {
         public:
-            UnitAuraCheck(bool present, uint32 spellId, uint64 casterGUID = 0) : _present(present), _spellId(spellId), _casterGUID(casterGUID) { }
+            UnitAuraCheck(bool present, uint32 spellId, ObjectGuid casterGUID = ObjectGuid::Empty) : _present(present), _spellId(spellId), _casterGUID(casterGUID) { }
             bool operator()(Unit* unit) const
             {
                 return unit->HasAura(_spellId, _casterGUID) == _present;
@@ -1413,7 +1413,7 @@ namespace Trinity
         private:
             bool _present;
             uint32 _spellId;
-            uint64 _casterGUID;
+            ObjectGuid _casterGUID;
     };
 
     // Player checks and do
diff --git a/src/server/game/Grids/ObjectGridLoader.cpp b/src/server/game/Grids/ObjectGridLoader.cpp
index ab7a0e20512..7fde9e8b6da 100644
--- a/src/server/game/Grids/ObjectGridLoader.cpp
+++ b/src/server/game/Grids/ObjectGridLoader.cpp
@@ -141,7 +141,7 @@ void LoadHelper(CellCorpseSet const& cell_corpses, CellCoord &cell, CorpseMapTyp
         if (itr->second != map->GetInstanceId())
             continue;
 
-        uint32 player_guid = itr->first;
+        ObjectGuid player_guid(HIGHGUID_PLAYER, itr->first);
 
         Corpse* obj = sObjectAccessor->GetCorpseForPlayerGUID(player_guid);
         if (!obj)
diff --git a/src/server/game/Groups/Group.cpp b/src/server/game/Groups/Group.cpp
index fd89ed80429..53c5139e20f 100644
--- a/src/server/game/Groups/Group.cpp
+++ b/src/server/game/Groups/Group.cpp
@@ -36,7 +36,7 @@
 #include "LFGMgr.h"
 #include "UpdateFieldFlags.h"
 
-Roll::Roll(uint64 _guid, LootItem const& li) : itemGUID(_guid), itemid(li.itemid),
+Roll::Roll(ObjectGuid _guid, LootItem const& li) : itemGUID(_guid), itemid(li.itemid),
 itemRandomPropId(li.randomPropertyId), itemRandomSuffix(li.randomSuffix), itemCount(li.count),
 totalPlayersRolling(0), totalNeed(0), totalGreed(0), totalPass(0), itemSlot(0),
 rollVoteMask(ROLL_ALL_TYPE_NO_DISENCHANT) { }
@@ -53,13 +53,13 @@ Loot* Roll::getLoot()
     return getTarget();
 }
 
-Group::Group() : m_leaderGuid(0), m_leaderName(""), m_groupType(GROUPTYPE_NORMAL),
+Group::Group() : m_leaderGuid(), m_leaderName(""), m_groupType(GROUPTYPE_NORMAL),
 m_dungeonDifficulty(DUNGEON_DIFFICULTY_NORMAL), m_raidDifficulty(RAID_DIFFICULTY_10MAN_NORMAL),
-m_bgGroup(NULL), m_bfGroup(NULL), m_lootMethod(FREE_FOR_ALL), m_lootThreshold(ITEM_QUALITY_UNCOMMON), m_looterGuid(0),
-m_masterLooterGuid(0), m_subGroupsCounts(NULL), m_guid(0), m_counter(0), m_maxEnchantingLevel(0), m_dbStoreId(0)
+m_bgGroup(NULL), m_bfGroup(NULL), m_lootMethod(FREE_FOR_ALL), m_lootThreshold(ITEM_QUALITY_UNCOMMON), m_looterGuid(),
+m_masterLooterGuid(), m_subGroupsCounts(NULL), m_guid(), m_counter(0), m_maxEnchantingLevel(0), m_dbStoreId(0)
 {
     for (uint8 i = 0; i < TARGETICONCOUNT; ++i)
-        m_targetIcons[i] = 0;
+        m_targetIcons[i].Clear();
 }
 
 Group::~Group()
@@ -91,10 +91,10 @@ Group::~Group()
 
 bool Group::Create(Player* leader)
 {
-    uint64 leaderGuid = leader->GetGUID();
+    ObjectGuid leaderGuid = leader->GetGUID();
     uint32 lowguid = sGroupMgr->GenerateGroupId();
 
-    m_guid = MAKE_NEW_GUID(lowguid, 0, HIGHGUID_GROUP);
+    m_guid = ObjectGuid(HIGHGUID_GROUP, lowguid);
     m_leaderGuid = leaderGuid;
     m_leaderName = leader->GetName();
     leader->SetFlag(PLAYER_FLAGS, PLAYER_FLAGS_GROUP_LEADER);
@@ -110,7 +110,7 @@ bool Group::Create(Player* leader)
 
     m_lootThreshold = ITEM_QUALITY_UNCOMMON;
     m_looterGuid = leaderGuid;
-    m_masterLooterGuid = 0;
+    m_masterLooterGuid.Clear();
 
     m_dungeonDifficulty = DUNGEON_DIFFICULTY_NORMAL;
     m_raidDifficulty = RAID_DIFFICULTY_10MAN_NORMAL;
@@ -130,22 +130,22 @@ bool Group::Create(Player* leader)
         uint8 index = 0;
 
         stmt->setUInt32(index++, m_dbStoreId);
-        stmt->setUInt32(index++, GUID_LOPART(m_leaderGuid));
+        stmt->setUInt32(index++, m_leaderGuid.GetCounter());
         stmt->setUInt8(index++, uint8(m_lootMethod));
-        stmt->setUInt32(index++, GUID_LOPART(m_looterGuid));
+        stmt->setUInt32(index++, m_looterGuid.GetCounter());
         stmt->setUInt8(index++, uint8(m_lootThreshold));
-        stmt->setUInt32(index++, uint32(m_targetIcons[0]));
-        stmt->setUInt32(index++, uint32(m_targetIcons[1]));
-        stmt->setUInt32(index++, uint32(m_targetIcons[2]));
-        stmt->setUInt32(index++, uint32(m_targetIcons[3]));
-        stmt->setUInt32(index++, uint32(m_targetIcons[4]));
-        stmt->setUInt32(index++, uint32(m_targetIcons[5]));
-        stmt->setUInt32(index++, uint32(m_targetIcons[6]));
-        stmt->setUInt32(index++, uint32(m_targetIcons[7]));
+        stmt->setUInt64(index++, m_targetIcons[0].GetRawValue());
+        stmt->setUInt64(index++, m_targetIcons[1].GetRawValue());
+        stmt->setUInt64(index++, m_targetIcons[2].GetRawValue());
+        stmt->setUInt64(index++, m_targetIcons[3].GetRawValue());
+        stmt->setUInt64(index++, m_targetIcons[4].GetRawValue());
+        stmt->setUInt64(index++, m_targetIcons[5].GetRawValue());
+        stmt->setUInt64(index++, m_targetIcons[6].GetRawValue());
+        stmt->setUInt64(index++, m_targetIcons[7].GetRawValue());
         stmt->setUInt8(index++, uint8(m_groupType));
         stmt->setUInt32(index++, uint8(m_dungeonDifficulty));
         stmt->setUInt32(index++, uint8(m_raidDifficulty));
-        stmt->setUInt32(index++, GUID_LOPART(m_masterLooterGuid));
+        stmt->setUInt32(index++, m_masterLooterGuid.GetCounter());
 
         CharacterDatabase.Execute(stmt);
 
@@ -163,19 +163,19 @@ bool Group::Create(Player* leader)
 void Group::LoadGroupFromDB(Field* fields)
 {
     m_dbStoreId = fields[16].GetUInt32();
-    m_guid = MAKE_NEW_GUID(sGroupMgr->GenerateGroupId(), 0, HIGHGUID_GROUP);
-    m_leaderGuid = MAKE_NEW_GUID(fields[0].GetUInt32(), 0, HIGHGUID_PLAYER);
+    m_guid = ObjectGuid(HIGHGUID_GROUP, sGroupMgr->GenerateGroupId());
+    m_leaderGuid = ObjectGuid(HIGHGUID_PLAYER, fields[0].GetUInt32());
 
     // group leader not exist
-    if (!sObjectMgr->GetPlayerNameByGUID(fields[0].GetUInt32(), m_leaderName))
+    if (!sObjectMgr->GetPlayerNameByGUID(m_leaderGuid, m_leaderName))
         return;
 
     m_lootMethod = LootMethod(fields[1].GetUInt8());
-    m_looterGuid = MAKE_NEW_GUID(fields[2].GetUInt32(), 0, HIGHGUID_PLAYER);
+    m_looterGuid = ObjectGuid(HIGHGUID_PLAYER, fields[2].GetUInt32());
     m_lootThreshold = ItemQualities(fields[3].GetUInt8());
 
     for (uint8 i = 0; i < TARGETICONCOUNT; ++i)
-        m_targetIcons[i] = fields[4+i].GetUInt32();
+        m_targetIcons[i].Set(fields[4 + i].GetUInt64());
 
     m_groupType  = GroupType(fields[12].GetUInt8());
     if (m_groupType & GROUPTYPE_RAID)
@@ -193,7 +193,7 @@ void Group::LoadGroupFromDB(Field* fields)
     else
        m_raidDifficulty = Difficulty(r_diff);
 
-    m_masterLooterGuid = MAKE_NEW_GUID(fields[15].GetUInt32(), 0, HIGHGUID_PLAYER);
+    m_masterLooterGuid = ObjectGuid(HIGHGUID_PLAYER, fields[15].GetUInt32());
 
     if (m_groupType & GROUPTYPE_LFG)
         sLFGMgr->_LoadFromDB(fields, GetGUID());
@@ -202,7 +202,7 @@ void Group::LoadGroupFromDB(Field* fields)
 void Group::LoadMemberFromDB(uint32 guidLow, uint8 memberFlags, uint8 subgroup, uint8 roles)
 {
     MemberSlot member;
-    member.guid = MAKE_NEW_GUID(guidLow, 0, HIGHGUID_PLAYER);
+    member.guid = ObjectGuid(HIGHGUID_PLAYER, guidLow);
 
     // skip non-existed member
     if (!sObjectMgr->GetPlayerNameByGUID(member.guid, member.name))
@@ -345,7 +345,7 @@ void Group::RemoveAllInvites()
     m_invitees.clear();
 }
 
-Player* Group::GetInvited(uint64 guid) const
+Player* Group::GetInvited(ObjectGuid guid) const
 {
     for (InvitesList::const_iterator itr = m_invitees.begin(); itr != m_invitees.end(); ++itr)
     {
@@ -414,7 +414,7 @@ bool Group::AddMember(Player* player)
     if (!isRaidGroup())                                      // reset targetIcons for non-raid-groups
     {
         for (uint8 i = 0; i < TARGETICONCOUNT; ++i)
-            m_targetIcons[i] = 0;
+            m_targetIcons[i].Clear();
     }
 
     // insert into the table if we're not a battleground group
@@ -423,7 +423,7 @@ bool Group::AddMember(Player* player)
         PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_INS_GROUP_MEMBER);
 
         stmt->setUInt32(0, m_dbStoreId);
-        stmt->setUInt32(1, GUID_LOPART(member.guid));
+        stmt->setUInt32(1, member.guid.GetCounter());
         stmt->setUInt8(2, member.flags);
         stmt->setUInt8(3, member.group);
         stmt->setUInt8(4, member.roles);
@@ -513,7 +513,7 @@ bool Group::AddMember(Player* player)
     return true;
 }
 
-bool Group::RemoveMember(uint64 guid, const RemoveMethod& method /*= GROUP_REMOVEMETHOD_DEFAULT*/, uint64 kicker /*= 0*/, const char* reason /*= NULL*/)
+bool Group::RemoveMember(ObjectGuid guid, const RemoveMethod& method /*= GROUP_REMOVEMETHOD_DEFAULT*/, ObjectGuid kicker /*= 0*/, const char* reason /*= NULL*/)
 {
     BroadcastGroupUpdate();
 
@@ -565,7 +565,7 @@ bool Group::RemoveMember(uint64 guid, const RemoveMethod& method /*= GROUP_REMOV
         if (!isBGGroup() && !isBFGroup())
         {
             PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_GROUP_MEMBER);
-            stmt->setUInt32(0, GUID_LOPART(guid));
+            stmt->setUInt32(0, guid.GetCounter());
             CharacterDatabase.Execute(stmt);
             DelinkMember(guid);
         }
@@ -644,7 +644,7 @@ bool Group::RemoveMember(uint64 guid, const RemoveMethod& method /*= GROUP_REMOV
     }
 }
 
-void Group::ChangeLeader(uint64 newLeaderGuid)
+void Group::ChangeLeader(ObjectGuid newLeaderGuid)
 {
     member_witerator slot = _getMemberWSlot(newLeaderGuid);
 
@@ -850,7 +850,7 @@ void Group::SendLootStartRollToPlayer(uint32 countDown, uint32 mapId, Player* p,
     p->GetSession()->SendPacket(&data);
 }
 
-void Group::SendLootRoll(uint64 sourceGuid, uint64 targetGuid, uint8 rollNumber, uint8 rollType, Roll const& roll)
+void Group::SendLootRoll(ObjectGuid sourceGuid, ObjectGuid targetGuid, uint8 rollNumber, uint8 rollType, Roll const& roll)
 {
     WorldPacket data(SMSG_LOOT_ROLL, (8+4+8+4+4+4+1+1+1));
     data << uint64(sourceGuid);                             // guid of the item rolled
@@ -874,7 +874,7 @@ void Group::SendLootRoll(uint64 sourceGuid, uint64 targetGuid, uint8 rollNumber,
     }
 }
 
-void Group::SendLootRollWon(uint64 sourceGuid, uint64 targetGuid, uint8 rollNumber, uint8 rollType, Roll const& roll)
+void Group::SendLootRollWon(ObjectGuid sourceGuid, ObjectGuid targetGuid, uint8 rollNumber, uint8 rollType, Roll const& roll)
 {
     WorldPacket data(SMSG_LOOT_ROLL_WON, (8+4+4+4+4+8+1+1));
     data << uint64(sourceGuid);                             // guid of the item rolled
@@ -926,12 +926,12 @@ void Group::SendLooter(Creature* creature, Player* groupLooter)
     data << uint64(creature->GetGUID());
 
     if (GetLootMethod() == MASTER_LOOT && creature->loot.hasOverThresholdItem())
-        data.appendPackGUID(GetMasterLooterGuid());
+        data << GetMasterLooterGuid().WriteAsPacked();
     else
         data << uint8(0);
 
     if (groupLooter)
-        data.append(groupLooter->GetPackGUID());
+        data << groupLooter->GetPackGUID();
     else
         data << uint8(0);
 
@@ -959,7 +959,7 @@ void Group::GroupLoot(Loot* loot, WorldObject* pLootedObject)
         //roll for over-threshold item if it's one-player loot
         if (item->Quality >= uint32(m_lootThreshold))
         {
-            uint64 newitemGUID = MAKE_NEW_GUID(sObjectMgr->GenerateLowGuid(HIGHGUID_ITEM), 0, HIGHGUID_ITEM);
+            ObjectGuid newitemGUID = ObjectGuid(HIGHGUID_ITEM, sObjectMgr->GenerateLowGuid(HIGHGUID_ITEM));
             Roll* r = new Roll(newitemGUID, *i);
 
             //a vector is filled with only near party members
@@ -1043,7 +1043,7 @@ void Group::GroupLoot(Loot* loot, WorldObject* pLootedObject)
             continue;
         }
 
-        uint64 newitemGUID = MAKE_NEW_GUID(sObjectMgr->GenerateLowGuid(HIGHGUID_ITEM), 0, HIGHGUID_ITEM);
+        ObjectGuid newitemGUID = ObjectGuid(HIGHGUID_ITEM, sObjectMgr->GenerateLowGuid(HIGHGUID_ITEM));
         Roll* r = new Roll(newitemGUID, *i);
 
         //a vector is filled with only near party members
@@ -1104,7 +1104,7 @@ void Group::NeedBeforeGreed(Loot* loot, WorldObject* lootedObject)
         //roll for over-threshold item if it's one-player loot
         if (item->Quality >= uint32(m_lootThreshold))
         {
-            uint64 newitemGUID = MAKE_NEW_GUID(sObjectMgr->GenerateLowGuid(HIGHGUID_ITEM), 0, HIGHGUID_ITEM);
+            ObjectGuid newitemGUID = ObjectGuid(HIGHGUID_ITEM, sObjectMgr->GenerateLowGuid(HIGHGUID_ITEM));
             Roll* r = new Roll(newitemGUID, *i);
 
             for (GroupReference* itr = GetFirstMember(); itr != NULL; itr = itr->next())
@@ -1179,7 +1179,7 @@ void Group::NeedBeforeGreed(Loot* loot, WorldObject* lootedObject)
             continue;
 
         item = sObjectMgr->GetItemTemplate(i->itemid);
-        uint64 newitemGUID = MAKE_NEW_GUID(sObjectMgr->GenerateLowGuid(HIGHGUID_ITEM), 0, HIGHGUID_ITEM);
+        ObjectGuid newitemGUID = ObjectGuid(HIGHGUID_ITEM, sObjectMgr->GenerateLowGuid(HIGHGUID_ITEM));
         Roll* r = new Roll(newitemGUID, *i);
 
         for (GroupReference* itr = GetFirstMember(); itr != NULL; itr = itr->next())
@@ -1282,7 +1282,7 @@ void Group::MasterLoot(Loot* loot, WorldObject* pLootedObject)
     }
 }
 
-void Group::CountRollVote(uint64 playerGUID, uint64 Guid, uint8 Choice)
+void Group::CountRollVote(ObjectGuid playerGUID, ObjectGuid Guid, uint8 Choice)
 {
     Rolls::iterator rollI = GetRoll(Guid);
     if (rollI == RollId.end())
@@ -1301,22 +1301,22 @@ void Group::CountRollVote(uint64 playerGUID, uint64 Guid, uint8 Choice)
     switch (Choice)
     {
         case ROLL_PASS:                                     // Player choose pass
-            SendLootRoll(0, playerGUID, 128, ROLL_PASS, *roll);
+            SendLootRoll(ObjectGuid::Empty, playerGUID, 128, ROLL_PASS, *roll);
             ++roll->totalPass;
             itr->second = PASS;
             break;
         case ROLL_NEED:                                     // player choose Need
-            SendLootRoll(0, playerGUID, 0, 0, *roll);
+            SendLootRoll(ObjectGuid::Empty, playerGUID, 0, 0, *roll);
             ++roll->totalNeed;
             itr->second = NEED;
             break;
         case ROLL_GREED:                                    // player choose Greed
-            SendLootRoll(0, playerGUID, 128, ROLL_GREED, *roll);
+            SendLootRoll(ObjectGuid::Empty, playerGUID, 128, ROLL_GREED, *roll);
             ++roll->totalGreed;
             itr->second = GREED;
             break;
         case ROLL_DISENCHANT:                               // player choose Disenchant
-            SendLootRoll(0, playerGUID, 128, ROLL_DISENCHANT, *roll);
+            SendLootRoll(ObjectGuid::Empty, playerGUID, 128, ROLL_DISENCHANT, *roll);
             ++roll->totalGreed;
             itr->second = DISENCHANT;
             break;
@@ -1356,7 +1356,7 @@ void Group::CountTheRoll(Rolls::iterator rollI)
         if (!roll->playerVote.empty())
         {
             uint8 maxresul = 0;
-            uint64 maxguid  = (*roll->playerVote.begin()).first;
+            ObjectGuid maxguid = (*roll->playerVote.begin()).first;
             Player* player;
 
             for (Roll::PlayerVote::const_iterator itr=roll->playerVote.begin(); itr != roll->playerVote.end(); ++itr)
@@ -1365,14 +1365,14 @@ void Group::CountTheRoll(Rolls::iterator rollI)
                     continue;
 
                 uint8 randomN = urand(1, 100);
-                SendLootRoll(0, itr->first, randomN, ROLL_NEED, *roll);
+                SendLootRoll(ObjectGuid::Empty, itr->first, randomN, ROLL_NEED, *roll);
                 if (maxresul < randomN)
                 {
                     maxguid  = itr->first;
                     maxresul = randomN;
                 }
             }
-            SendLootRollWon(0, maxguid, maxresul, ROLL_NEED, *roll);
+            SendLootRollWon(ObjectGuid::Empty, maxguid, maxresul, ROLL_NEED, *roll);
             player = ObjectAccessor::FindPlayer(maxguid);
 
             if (player && player->GetSession())
@@ -1402,7 +1402,7 @@ void Group::CountTheRoll(Rolls::iterator rollI)
         if (!roll->playerVote.empty())
         {
             uint8 maxresul = 0;
-            uint64 maxguid = (*roll->playerVote.begin()).first;
+            ObjectGuid maxguid = (*roll->playerVote.begin()).first;
             Player* player;
             RollVote rollvote = NOT_VALID;
 
@@ -1413,7 +1413,7 @@ void Group::CountTheRoll(Rolls::iterator rollI)
                     continue;
 
                 uint8 randomN = urand(1, 100);
-                SendLootRoll(0, itr->first, randomN, itr->second, *roll);
+                SendLootRoll(ObjectGuid::Empty, itr->first, randomN, itr->second, *roll);
                 if (maxresul < randomN)
                 {
                     maxguid  = itr->first;
@@ -1421,7 +1421,7 @@ void Group::CountTheRoll(Rolls::iterator rollI)
                     rollvote = itr->second;
                 }
             }
-            SendLootRollWon(0, maxguid, maxresul, rollvote, *roll);
+            SendLootRollWon(ObjectGuid::Empty, maxguid, maxresul, rollvote, *roll);
             player = ObjectAccessor::FindPlayer(maxguid);
 
             if (player && player->GetSession())
@@ -1490,16 +1490,16 @@ void Group::CountTheRoll(Rolls::iterator rollI)
     delete roll;
 }
 
-void Group::SetTargetIcon(uint8 id, uint64 whoGuid, uint64 targetGuid)
+void Group::SetTargetIcon(uint8 id, ObjectGuid whoGuid, ObjectGuid targetGuid)
 {
     if (id >= TARGETICONCOUNT)
         return;
 
     // clean other icons
-    if (targetGuid != 0)
+    if (targetGuid)
         for (int i=0; i<TARGETICONCOUNT; ++i)
             if (m_targetIcons[i] == targetGuid)
-                SetTargetIcon(i, 0, 0);
+                SetTargetIcon(i, ObjectGuid::Empty, ObjectGuid::Empty);
 
     m_targetIcons[id] = targetGuid;
 
@@ -1521,7 +1521,7 @@ void Group::SendTargetIconList(WorldSession* session)
 
     for (uint8 i = 0; i < TARGETICONCOUNT; ++i)
     {
-        if (m_targetIcons[i] == 0)
+        if (m_targetIcons[i].IsEmpty())
             continue;
 
         data << uint8(i);
@@ -1537,7 +1537,7 @@ void Group::SendUpdate()
         SendUpdateToPlayer(witr->guid, &(*witr));
 }
 
-void Group::SendUpdateToPlayer(uint64 playerGUID, MemberSlot* slot)
+void Group::SendUpdateToPlayer(ObjectGuid playerGUID, MemberSlot* slot)
 {
     Player* player = ObjectAccessor::FindPlayer(playerGUID);
 
@@ -1639,12 +1639,12 @@ void Group::BroadcastAddonMessagePacket(WorldPacket* packet, const std::string&
     }
 }
 
-void Group::BroadcastPacket(WorldPacket* packet, bool ignorePlayersInBGRaid, int group, uint64 ignore)
+void Group::BroadcastPacket(WorldPacket* packet, bool ignorePlayersInBGRaid, int group, ObjectGuid ignoredPlayer)
 {
     for (GroupReference* itr = GetFirstMember(); itr != NULL; itr = itr->next())
     {
         Player* player = itr->GetSource();
-        if (!player || (ignore != 0 && player->GetGUID() == ignore) || (ignorePlayersInBGRaid && player->GetGroup() != this))
+        if (!player || (!ignoredPlayer.IsEmpty() && player->GetGUID() == ignoredPlayer) || (ignorePlayersInBGRaid && player->GetGroup() != this))
             continue;
 
         if (player->GetSession() && (group == -1 || itr->getSubGroup() == group))
@@ -1678,7 +1678,7 @@ void Group::OfflineReadyCheck()
     }
 }
 
-bool Group::_setMembersGroup(uint64 guid, uint8 group)
+bool Group::_setMembersGroup(ObjectGuid guid, uint8 group)
 {
     member_witerator slot = _getMemberWSlot(guid);
     if (slot == m_memberSlots.end())
@@ -1693,7 +1693,7 @@ bool Group::_setMembersGroup(uint64 guid, uint8 group)
         PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_UPD_GROUP_MEMBER_SUBGROUP);
 
         stmt->setUInt8(0, group);
-        stmt->setUInt32(1, GUID_LOPART(guid));
+        stmt->setUInt32(1, guid.GetCounter());
 
         CharacterDatabase.Execute(stmt);
     }
@@ -1713,7 +1713,7 @@ bool Group::SameSubGroup(Player const* member1, Player const* member2) const
 }
 
 // Allows setting sub groups both for online or offline members
-void Group::ChangeMembersGroup(uint64 guid, uint8 group)
+void Group::ChangeMembersGroup(ObjectGuid guid, uint8 group)
 {
     // Only raid groups have sub groups
     if (!isRaidGroup())
@@ -1744,7 +1744,7 @@ void Group::ChangeMembersGroup(uint64 guid, uint8 group)
         PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_UPD_GROUP_MEMBER_SUBGROUP);
 
         stmt->setUInt8(0, group);
-        stmt->setUInt32(1, GUID_LOPART(guid));
+        stmt->setUInt32(1, guid.GetCounter());
 
         CharacterDatabase.Execute(stmt);
     }
@@ -1784,7 +1784,7 @@ void Group::UpdateLooterGuid(WorldObject* pLootedObject, bool ifneed)
     if (GetLootMethod() == FREE_FOR_ALL)
         return;
 
-    uint64 oldLooterGUID = GetLooterGuid();
+    ObjectGuid oldLooterGUID = GetLooterGuid();
     member_citerator guid_itr = _getMemberCSlot(oldLooterGUID);
     if (guid_itr != m_memberSlots.end())
     {
@@ -1834,7 +1834,7 @@ void Group::UpdateLooterGuid(WorldObject* pLootedObject, bool ifneed)
     }
     else
     {
-        SetLooterGuid(0);
+        SetLooterGuid(ObjectGuid::Empty);
         SendUpdate();
     }
 }
@@ -2136,8 +2136,8 @@ InstanceGroupBind* Group::BindToInstance(InstanceSave* save, bool permanent, boo
     bind.save = save;
     bind.perm = permanent;
     if (!load)
-        TC_LOG_DEBUG("maps", "Group::BindToInstance: Group (guid: %u, storage id: %u) is now bound to map %d, instance %d, difficulty %d",
-        GUID_LOPART(GetGUID()), m_dbStoreId, save->GetMapId(), save->GetInstanceId(), save->GetDifficulty());
+        TC_LOG_DEBUG("maps", "Group::BindToInstance: %s, storage id: %u is now bound to map %d, instance %d, difficulty %d",
+            GetGUID().ToString().c_str(), m_dbStoreId, save->GetMapId(), save->GetInstanceId(), save->GetDifficulty());
 
     return &bind;
 }
@@ -2201,12 +2201,12 @@ void Group::SetLootMethod(LootMethod method)
     m_lootMethod = method;
 }
 
-void Group::SetLooterGuid(uint64 guid)
+void Group::SetLooterGuid(ObjectGuid guid)
 {
     m_looterGuid = guid;
 }
 
-void Group::SetMasterLooterGuid(uint64 guid)
+void Group::SetMasterLooterGuid(ObjectGuid guid)
 {
     m_masterLooterGuid = guid;
 }
@@ -2216,7 +2216,7 @@ void Group::SetLootThreshold(ItemQualities threshold)
     m_lootThreshold = threshold;
 }
 
-void Group::SetLfgRoles(uint64 guid, const uint8 roles)
+void Group::SetLfgRoles(ObjectGuid guid, uint8 roles)
 {
     member_witerator slot = _getMemberWSlot(guid);
     if (slot == m_memberSlots.end())
@@ -2256,19 +2256,19 @@ bool Group::IsCreated() const
     return GetMembersCount() > 0;
 }
 
-uint64 Group::GetLeaderGUID() const
+ObjectGuid Group::GetLeaderGUID() const
 {
     return m_leaderGuid;
 }
 
-uint64 Group::GetGUID() const
+ObjectGuid Group::GetGUID() const
 {
     return m_guid;
 }
 
 uint32 Group::GetLowGUID() const
 {
-    return GUID_LOPART(m_guid);
+    return m_guid.GetCounter();
 }
 
 char const* Group::GetLeaderName() const
@@ -2281,12 +2281,12 @@ LootMethod Group::GetLootMethod() const
     return m_lootMethod;
 }
 
-uint64 Group::GetLooterGuid() const
+ObjectGuid Group::GetLooterGuid() const
 {
     return m_looterGuid;
 }
 
-uint64 Group::GetMasterLooterGuid() const
+ObjectGuid Group::GetMasterLooterGuid() const
 {
     return m_masterLooterGuid;
 }
@@ -2296,25 +2296,25 @@ ItemQualities Group::GetLootThreshold() const
     return m_lootThreshold;
 }
 
-bool Group::IsMember(uint64 guid) const
+bool Group::IsMember(ObjectGuid guid) const
 {
     return _getMemberCSlot(guid) != m_memberSlots.end();
 }
 
-bool Group::IsLeader(uint64 guid) const
+bool Group::IsLeader(ObjectGuid guid) const
 {
     return (GetLeaderGUID() == guid);
 }
 
-uint64 Group::GetMemberGUID(const std::string& name)
+ObjectGuid Group::GetMemberGUID(const std::string& name)
 {
     for (member_citerator itr = m_memberSlots.begin(); itr != m_memberSlots.end(); ++itr)
         if (itr->name == name)
             return itr->guid;
-    return 0;
+    return ObjectGuid::Empty;
 }
 
-bool Group::IsAssistant(uint64 guid) const
+bool Group::IsAssistant(ObjectGuid guid) const
 {
     member_citerator mslot = _getMemberCSlot(guid);
     if (mslot == m_memberSlots.end())
@@ -2322,7 +2322,7 @@ bool Group::IsAssistant(uint64 guid) const
     return mslot->flags & MEMBER_FLAG_ASSISTANT;
 }
 
-bool Group::SameSubGroup(uint64 guid1, uint64 guid2) const
+bool Group::SameSubGroup(ObjectGuid guid1, ObjectGuid guid2) const
 {
     member_citerator mslot2 = _getMemberCSlot(guid2);
     if (mslot2 == m_memberSlots.end())
@@ -2330,7 +2330,7 @@ bool Group::SameSubGroup(uint64 guid1, uint64 guid2) const
     return SameSubGroup(guid1, &*mslot2);
 }
 
-bool Group::SameSubGroup(uint64 guid1, MemberSlot const* slot2) const
+bool Group::SameSubGroup(ObjectGuid guid1, MemberSlot const* slot2) const
 {
     member_citerator mslot1 = _getMemberCSlot(guid1);
     if (mslot1 == m_memberSlots.end() || !slot2)
@@ -2344,7 +2344,7 @@ bool Group::HasFreeSlotSubGroup(uint8 subgroup) const
 }
 
 
-uint8 Group::GetMemberGroup(uint64 guid) const
+uint8 Group::GetMemberGroup(ObjectGuid guid) const
 {
     member_citerator mslot = _getMemberCSlot(guid);
     if (mslot == m_memberSlots.end())
@@ -2362,7 +2362,7 @@ void Group::SetBattlefieldGroup(Battlefield *bg)
     m_bfGroup = bg;
 }
 
-void Group::SetGroupMemberFlag(uint64 guid, bool apply, GroupMemberFlags flag)
+void Group::SetGroupMemberFlag(ObjectGuid guid, bool apply, GroupMemberFlags flag)
 {
     // Assistants, main assistants and main tanks are only available in raid groups
     if (!isRaidGroup())
@@ -2394,7 +2394,7 @@ void Group::SetGroupMemberFlag(uint64 guid, bool apply, GroupMemberFlags flag)
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_UPD_GROUP_MEMBER_FLAG);
 
     stmt->setUInt8(0, slot->flags);
-    stmt->setUInt32(1, GUID_LOPART(guid));
+    stmt->setUInt32(1, guid.GetCounter());
 
     CharacterDatabase.Execute(stmt);
 
@@ -2422,7 +2422,7 @@ bool Group::isRollLootActive() const
     return !RollId.empty();
 }
 
-Group::Rolls::iterator Group::GetRoll(uint64 Guid)
+Group::Rolls::iterator Group::GetRoll(ObjectGuid Guid)
 {
     Rolls::iterator iter;
     for (iter=RollId.begin(); iter != RollId.end(); ++iter)
@@ -2436,7 +2436,7 @@ void Group::LinkMember(GroupReference* pRef)
     m_memberMgr.insertFirst(pRef);
 }
 
-void Group::DelinkMember(uint64 guid)
+void Group::DelinkMember(ObjectGuid guid)
 {
     GroupReference* ref = m_memberMgr.getFirst();
     while (ref)
@@ -2468,7 +2468,7 @@ void Group::_initRaidSubGroupsCounter()
         ++m_subGroupsCounts[itr->group];
 }
 
-Group::member_citerator Group::_getMemberCSlot(uint64 Guid) const
+Group::member_citerator Group::_getMemberCSlot(ObjectGuid Guid) const
 {
     for (member_citerator itr = m_memberSlots.begin(); itr != m_memberSlots.end(); ++itr)
         if (itr->guid == Guid)
@@ -2476,7 +2476,7 @@ Group::member_citerator Group::_getMemberCSlot(uint64 Guid) const
     return m_memberSlots.end();
 }
 
-Group::member_witerator Group::_getMemberWSlot(uint64 Guid)
+Group::member_witerator Group::_getMemberWSlot(ObjectGuid Guid)
 {
     for (member_witerator itr = m_memberSlots.begin(); itr != m_memberSlots.end(); ++itr)
         if (itr->guid == Guid)
diff --git a/src/server/game/Groups/Group.h b/src/server/game/Groups/Group.h
index 84e3a5454cd..a7807a6567c 100644
--- a/src/server/game/Groups/Group.h
+++ b/src/server/game/Groups/Group.h
@@ -28,7 +28,6 @@
 class Battlefield;
 class Battleground;
 class Creature;
-class GroupReference;
 class InstanceSave;
 class Map;
 class Player;
@@ -131,18 +130,18 @@ enum GroupUpdateFlags
 class Roll : public LootValidatorRef
 {
     public:
-        Roll(uint64 _guid, LootItem const& li);
+        Roll(ObjectGuid _guid, LootItem const& li);
         ~Roll();
         void setLoot(Loot* pLoot);
         Loot* getLoot();
         void targetObjectBuildLink() override;
 
-        uint64 itemGUID;
+        ObjectGuid itemGUID;
         uint32 itemid;
         int32  itemRandomPropId;
         uint32 itemRandomSuffix;
         uint8 itemCount;
-        typedef std::map<uint64, RollVote> PlayerVote;
+        typedef std::map<ObjectGuid, RollVote> PlayerVote;
         PlayerVote playerVote;                              //vote position correspond with player position (in group)
         uint8 totalPlayersRolling;
         uint8 totalNeed;
@@ -168,7 +167,7 @@ class Group
     public:
         struct MemberSlot
         {
-            uint64      guid;
+            ObjectGuid  guid;
             std::string name;
             uint8       group;
             uint8       flags;
@@ -197,15 +196,15 @@ class Group
         void   RemoveAllInvites();
         bool   AddLeaderInvite(Player* player);
         bool   AddMember(Player* player);
-        bool   RemoveMember(uint64 guid, const RemoveMethod &method = GROUP_REMOVEMETHOD_DEFAULT, uint64 kicker = 0, const char* reason = NULL);
-        void   ChangeLeader(uint64 guid);
+        bool   RemoveMember(ObjectGuid guid, const RemoveMethod &method = GROUP_REMOVEMETHOD_DEFAULT, ObjectGuid kicker = ObjectGuid::Empty, const char* reason = NULL);
+        void   ChangeLeader(ObjectGuid guid);
         void   SetLootMethod(LootMethod method);
-        void   SetLooterGuid(uint64 guid);
-        void   SetMasterLooterGuid(uint64 guid);
+        void   SetLooterGuid(ObjectGuid guid);
+        void   SetMasterLooterGuid(ObjectGuid guid);
         void   UpdateLooterGuid(WorldObject* pLootedObject, bool ifneed = false);
         void   SetLootThreshold(ItemQualities threshold);
-        void   Disband(bool hideDestroy=false);
-        void   SetLfgRoles(uint64 guid, const uint8 roles);
+        void   Disband(bool hideDestroy = false);
+        void   SetLfgRoles(ObjectGuid guid, uint8 roles);
 
         // properties accessories
         bool IsFull() const;
@@ -214,28 +213,28 @@ class Group
         bool isBGGroup()   const;
         bool isBFGroup()   const;
         bool IsCreated()   const;
-        uint64 GetLeaderGUID() const;
-        uint64 GetGUID() const;
+        ObjectGuid GetLeaderGUID() const;
+        ObjectGuid GetGUID() const;
         uint32 GetLowGUID() const;
         const char * GetLeaderName() const;
         LootMethod GetLootMethod() const;
-        uint64 GetLooterGuid() const;
-        uint64 GetMasterLooterGuid() const;
+        ObjectGuid GetLooterGuid() const;
+        ObjectGuid GetMasterLooterGuid() const;
         ItemQualities GetLootThreshold() const;
 
         uint32 GetDbStoreId() const { return m_dbStoreId; };
 
         // member manipulation methods
-        bool IsMember(uint64 guid) const;
-        bool IsLeader(uint64 guid) const;
-        uint64 GetMemberGUID(const std::string& name);
-        bool IsAssistant(uint64 guid) const;
+        bool IsMember(ObjectGuid guid) const;
+        bool IsLeader(ObjectGuid guid) const;
+        ObjectGuid GetMemberGUID(const std::string& name);
+        bool IsAssistant(ObjectGuid guid) const;
 
-        Player* GetInvited(uint64 guid) const;
+        Player* GetInvited(ObjectGuid guid) const;
         Player* GetInvited(const std::string& name) const;
 
-        bool SameSubGroup(uint64 guid1, uint64 guid2) const;
-        bool SameSubGroup(uint64 guid1, MemberSlot const* slot2) const;
+        bool SameSubGroup(ObjectGuid guid1, ObjectGuid guid2) const;
+        bool SameSubGroup(ObjectGuid guid1, MemberSlot const* slot2) const;
         bool SameSubGroup(Player const* member1, Player const* member2) const;
         bool HasFreeSlotSubGroup(uint8 subgroup) const;
 
@@ -245,7 +244,7 @@ class Group
         uint32 GetMembersCount() const { return m_memberSlots.size(); }
         GroupType GetGroupType() const { return m_groupType; }
 
-        uint8 GetMemberGroup(uint64 guid) const;
+        uint8 GetMemberGroup(ObjectGuid guid) const;
 
         void ConvertToLFG();
         void ConvertToRaid();
@@ -255,10 +254,9 @@ class Group
         void SetBattlefieldGroup(Battlefield* bf);
         GroupJoinBattlegroundResult CanJoinBattlegroundQueue(Battleground const* bgOrTemplate, BattlegroundQueueTypeId bgQueueTypeId, uint32 MinPlayerCount, uint32 MaxPlayerCount, bool isRated, uint32 arenaSlot);
 
-        void ChangeMembersGroup(uint64 guid, uint8 group);
-        void ChangeMembersGroup(Player* player, uint8 group);
-        void SetTargetIcon(uint8 id, uint64 whoGuid, uint64 targetGuid);
-        void SetGroupMemberFlag(uint64 guid, bool apply, GroupMemberFlags flag);
+        void ChangeMembersGroup(ObjectGuid guid, uint8 group);
+        void SetTargetIcon(uint8 id, ObjectGuid whoGuid, ObjectGuid targetGuid);
+        void SetGroupMemberFlag(ObjectGuid guid, bool apply, GroupMemberFlags flag);
         void RemoveUniqueGroupMemberFlag(GroupMemberFlags flag);
 
         Difficulty GetDifficulty(bool isRaid) const;
@@ -274,10 +272,24 @@ class Group
         //void SendInit(WorldSession* session);
         void SendTargetIconList(WorldSession* session);
         void SendUpdate();
-        void SendUpdateToPlayer(uint64 playerGUID, MemberSlot* slot = NULL);
+        void SendUpdateToPlayer(ObjectGuid playerGUID, MemberSlot* slot = NULL);
         void UpdatePlayerOutOfRange(Player* player);
-                                                            // ignore: GUID of player that will be ignored
-        void BroadcastPacket(WorldPacket* packet, bool ignorePlayersInBGRaid, int group = -1, uint64 ignore = 0);
+
+        template<class Worker>
+        void BroadcastWorker(Worker& worker)
+        {
+            for (GroupReference* itr = GetFirstMember(); itr != nullptr; itr = itr->next())
+                worker(itr->GetSource());
+        }
+
+        template<class Worker>
+        void BroadcastWorker(Worker const& worker) const
+        {
+            for (GroupReference const* itr = GetFirstMember(); itr != nullptr; itr = itr->next())
+                worker(itr->GetSource());
+        }
+
+        void BroadcastPacket(WorldPacket* packet, bool ignorePlayersInBGRaid, int group = -1, ObjectGuid ignoredPlayer = ObjectGuid::Empty);
         void BroadcastAddonMessagePacket(WorldPacket* packet, const std::string& prefix, bool ignorePlayersInBGRaid, int group = -1, uint64 ignore = 0);
         void BroadcastReadyCheck(WorldPacket* packet);
         void OfflineReadyCheck();
@@ -289,23 +301,23 @@ class Group
         bool isRollLootActive() const;
         void SendLootStartRoll(uint32 CountDown, uint32 mapid, const Roll &r);
         void SendLootStartRollToPlayer(uint32 countDown, uint32 mapId, Player* p, bool canNeed, Roll const& r);
-        void SendLootRoll(uint64 SourceGuid, uint64 TargetGuid, uint8 RollNumber, uint8 RollType, const Roll &r);
-        void SendLootRollWon(uint64 SourceGuid, uint64 TargetGuid, uint8 RollNumber, uint8 RollType, const Roll &r);
+        void SendLootRoll(ObjectGuid SourceGuid, ObjectGuid TargetGuid, uint8 RollNumber, uint8 RollType, const Roll &r);
+        void SendLootRollWon(ObjectGuid SourceGuid, ObjectGuid TargetGuid, uint8 RollNumber, uint8 RollType, const Roll &r);
         void SendLootAllPassed(Roll const& roll);
         void SendLooter(Creature* creature, Player* pLooter);
         void GroupLoot(Loot* loot, WorldObject* pLootedObject);
         void NeedBeforeGreed(Loot* loot, WorldObject* pLootedObject);
         void MasterLoot(Loot* loot, WorldObject* pLootedObject);
-        Rolls::iterator GetRoll(uint64 Guid);
+        Rolls::iterator GetRoll(ObjectGuid Guid);
         void CountTheRoll(Rolls::iterator roll);
-        void CountRollVote(uint64 playerGUID, uint64 Guid, uint8 Choise);
+        void CountRollVote(ObjectGuid playerGUID, ObjectGuid Guid, uint8 Choise);
         void EndRoll(Loot* loot);
 
         // related to disenchant rolls
         void ResetMaxEnchantingLevel();
 
         void LinkMember(GroupReference* pRef);
-        void DelinkMember(uint64 guid);
+        void DelinkMember(ObjectGuid guid);
 
         InstanceGroupBind* BindToInstance(InstanceSave* save, bool permanent, bool load = false);
         void UnbindInstance(uint32 mapid, uint8 difficulty, bool unload = false);
@@ -319,12 +331,12 @@ class Group
         void BroadcastGroupUpdate(void);
 
     protected:
-        bool _setMembersGroup(uint64 guid, uint8 group);
+        bool _setMembersGroup(ObjectGuid guid, uint8 group);
         void _homebindIfInstance(Player* player);
 
         void _initRaidSubGroupsCounter();
-        member_citerator _getMemberCSlot(uint64 Guid) const;
-        member_witerator _getMemberWSlot(uint64 Guid);
+        member_citerator _getMemberCSlot(ObjectGuid Guid) const;
+        member_witerator _getMemberWSlot(ObjectGuid Guid);
         void SubGroupCounterIncrease(uint8 subgroup);
         void SubGroupCounterDecrease(uint8 subgroup);
         void ToggleGroupMemberFlag(member_witerator slot, uint8 flag, bool apply);
@@ -332,22 +344,22 @@ class Group
         MemberSlotList      m_memberSlots;
         GroupRefManager     m_memberMgr;
         InvitesList         m_invitees;
-        uint64              m_leaderGuid;
+        ObjectGuid          m_leaderGuid;
         std::string         m_leaderName;
         GroupType           m_groupType;
         Difficulty          m_dungeonDifficulty;
         Difficulty          m_raidDifficulty;
         Battleground*       m_bgGroup;
         Battlefield*        m_bfGroup;
-        uint64              m_targetIcons[TARGETICONCOUNT];
+        ObjectGuid          m_targetIcons[TARGETICONCOUNT];
         LootMethod          m_lootMethod;
         ItemQualities       m_lootThreshold;
-        uint64              m_looterGuid;
-        uint64              m_masterLooterGuid;
+        ObjectGuid          m_looterGuid;
+        ObjectGuid          m_masterLooterGuid;
         Rolls               RollId;
         BoundInstancesMap   m_boundInstances[MAX_DIFFICULTY];
         uint8*              m_subGroupsCounts;
-        uint64              m_guid;
+        ObjectGuid          m_guid;
         uint32              m_counter;                      // used only in SMSG_GROUP_LIST
         uint32              m_maxEnchantingLevel;
         uint32              m_dbStoreId;                    // Represents the ID used in database (Can be reused by other groups if group was disbanded)
diff --git a/src/server/game/Groups/GroupRefManager.h b/src/server/game/Groups/GroupRefManager.h
index d286a19cbfd..8c7e302cf5e 100644
--- a/src/server/game/Groups/GroupRefManager.h
+++ b/src/server/game/Groups/GroupRefManager.h
@@ -19,11 +19,11 @@
 #ifndef _GROUPREFMANAGER
 #define _GROUPREFMANAGER
 
+#include "GroupReference.h"
 #include "RefManager.h"
 
 class Group;
 class Player;
-class GroupReference;
 
 class GroupRefManager : public RefManager<Group, Player>
 {
diff --git a/src/server/game/Guilds/Guild.cpp b/src/server/game/Guilds/Guild.cpp
index 2b0c2be4bbd..7048fd3ee9d 100644
--- a/src/server/game/Guilds/Guild.cpp
+++ b/src/server/game/Guilds/Guild.cpp
@@ -199,8 +199,8 @@ void Guild::EventLogEntry::SaveToDB(SQLTransaction& trans) const
 
 void Guild::EventLogEntry::WritePacket(WorldPacket& data, ByteBuffer& content) const
 {
-    ObjectGuid guid1 = MAKE_NEW_GUID(m_playerGuid1, 0, HIGHGUID_PLAYER);
-    ObjectGuid guid2 = MAKE_NEW_GUID(m_playerGuid2, 0, HIGHGUID_PLAYER);
+    ObjectGuid guid1 = ObjectGuid(HIGHGUID_PLAYER, m_playerGuid1);
+    ObjectGuid guid2 = ObjectGuid(HIGHGUID_PLAYER, m_playerGuid2);
 
     data.WriteBit(guid1[2]);
     data.WriteBit(guid1[4]);
@@ -276,7 +276,7 @@ void Guild::BankEventLogEntry::SaveToDB(SQLTransaction& trans) const
 
 void Guild::BankEventLogEntry::WritePacket(WorldPacket& data, ByteBuffer& content) const
 {
-    ObjectGuid logGuid = MAKE_NEW_GUID(m_playerGuid, 0, HIGHGUID_PLAYER);
+    ObjectGuid logGuid = ObjectGuid(HIGHGUID_PLAYER, m_playerGuid);
 
     bool hasItem = m_eventType == GUILD_BANK_LOG_DEPOSIT_ITEM || m_eventType == GUILD_BANK_LOG_WITHDRAW_ITEM ||
                    m_eventType == GUILD_BANK_LOG_MOVE_ITEM || m_eventType == GUILD_BANK_LOG_MOVE_ITEM2;
@@ -329,7 +329,7 @@ void Guild::NewsLogEntry::SaveToDB(SQLTransaction& trans) const
     stmt->setUInt32(  index, m_guildId);
     stmt->setUInt32(++index, GetGUID());
     stmt->setUInt8 (++index, GetType());
-    stmt->setUInt32(++index, GetPlayerGuid());
+    stmt->setUInt32(++index, GetPlayerGuid().GetCounter());
     stmt->setUInt32(++index, GetFlags());
     stmt->setUInt32(++index, GetValue());
     stmt->setUInt64(++index, GetTimestamp());
@@ -513,7 +513,7 @@ bool Guild::BankTab::LoadItemFromDB(Field* fields)
     }
 
     Item* pItem = NewItemOrBag(proto);
-    if (!pItem->LoadFromDB(itemGuid, 0, fields, itemEntry))
+    if (!pItem->LoadFromDB(itemGuid, ObjectGuid::Empty, fields, itemEntry))
     {
         TC_LOG_ERROR("guild", "Item (GUID %u, id: %u) not found in item_instance, deleting from guild bank!", itemGuid, itemEntry);
 
@@ -601,8 +601,8 @@ bool Guild::BankTab::SetItem(SQLTransaction& trans, uint8 slotId, Item* item)
         stmt->setUInt32(3, item->GetGUIDLow());
         CharacterDatabase.ExecuteOrAppend(trans, stmt);
 
-        item->SetUInt64Value(ITEM_FIELD_CONTAINED, 0);
-        item->SetUInt64Value(ITEM_FIELD_OWNER, 0);
+        item->SetGuidValue(ITEM_FIELD_CONTAINED, ObjectGuid::Empty);
+        item->SetGuidValue(ITEM_FIELD_OWNER, ObjectGuid::Empty);
         item->FSetState(ITEM_NEW);
         item->SaveToDB(trans);                                 // Not in inventory and can be saved standalone
     }
@@ -659,7 +659,7 @@ void Guild::Member::SetPublicNote(std::string const& publicNote)
 
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_UPD_GUILD_MEMBER_PNOTE);
     stmt->setString(0, publicNote);
-    stmt->setUInt32(1, GUID_LOPART(m_guid));
+    stmt->setUInt32(1, m_guid.GetCounter());
     CharacterDatabase.Execute(stmt);
 }
 
@@ -672,7 +672,7 @@ void Guild::Member::SetOfficerNote(std::string const& officerNote)
 
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_UPD_GUILD_MEMBER_OFFNOTE);
     stmt->setString(0, officerNote);
-    stmt->setUInt32(1, GUID_LOPART(m_guid));
+    stmt->setUInt32(1, m_guid.GetCounter());
     CharacterDatabase.Execute(stmt);
 }
 
@@ -686,7 +686,7 @@ void Guild::Member::ChangeRank(uint8 newRank)
 
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_UPD_GUILD_MEMBER_RANK);
     stmt->setUInt8 (0, newRank);
-    stmt->setUInt32(1, GUID_LOPART(m_guid));
+    stmt->setUInt32(1, m_guid.GetCounter());
     CharacterDatabase.Execute(stmt);
 }
 
@@ -694,7 +694,7 @@ void Guild::Member::SaveToDB(SQLTransaction& trans) const
 {
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_INS_GUILD_MEMBER);
     stmt->setUInt32(0, m_guildId);
-    stmt->setUInt32(1, GUID_LOPART(m_guid));
+    stmt->setUInt32(1, m_guid.GetCounter());
     stmt->setUInt8 (2, m_rankId);
     stmt->setString(3, m_publicNote);
     stmt->setString(4, m_officerNote);
@@ -728,7 +728,7 @@ bool Guild::Member::LoadFromDB(Field* fields)
 
     if (!m_zoneId)
     {
-        TC_LOG_DEBUG("guild", "Player (GUID: %u) has broken zone-data", GUID_LOPART(m_guid));
+        TC_LOG_DEBUG("guild", "%s has broken zone-data", m_guid.ToString().c_str());
         m_zoneId = Player::GetZoneIdFromDB(m_guid);
     }
 
@@ -741,13 +741,13 @@ bool Guild::Member::CheckStats() const
 {
     if (m_level < 1)
     {
-        TC_LOG_ERROR("guild", "Player (GUID: %u) has a broken data in field `characters`.`level`, deleting him from guild!", GUID_LOPART(m_guid));
+        TC_LOG_ERROR("guild", "%s has a broken data in field `characters`.`level`, deleting him from guild!", m_guid.ToString().c_str());
         return false;
     }
 
     if (m_class < CLASS_WARRIOR || m_class >= MAX_CLASSES)
     {
-        TC_LOG_ERROR("guild", "Player (GUID: %u) has a broken data in field `characters`.`class`, deleting him from guild!", GUID_LOPART(m_guid));
+        TC_LOG_ERROR("guild", "%s has a broken data in field `characters`.`class`, deleting him from guild!", m_guid.ToString().c_str());
         return false;
     }
     return true;
@@ -761,7 +761,7 @@ void Guild::Member::UpdateBankWithdrawValue(SQLTransaction& trans, uint8 tabId,
     m_bankWithdraw[tabId] += amount;
 
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_INS_GUILD_MEMBER_WITHDRAW);
-    stmt->setUInt32(0, GUID_LOPART(m_guid));
+    stmt->setUInt32(0, m_guid.GetCounter());
     for (uint8 i = 0; i <= GUILD_BANK_MAX_TABS;)
     {
         uint32 withdraw = m_bankWithdraw[i++];
@@ -1159,7 +1159,7 @@ InventoryResult Guild::BankMoveItemData::CanStore(Item* pItem, bool swap)
 // Guild
 Guild::Guild():
     m_id(0),
-    m_leaderGuid(0),
+    m_leaderGuid(),
     m_createdDate(0),
     m_accountsNumber(0),
     m_bankMoney(0),
@@ -1221,7 +1221,7 @@ bool Guild::Create(Player* pLeader, std::string const& name)
     _CreateLogHolders();
 
     TC_LOG_DEBUG("guild", "GUILD: creating guild [%s] for leader %s (%u)",
-        name.c_str(), pLeader->GetName().c_str(), GUID_LOPART(m_leaderGuid));
+        name.c_str(), pLeader->GetName().c_str(), m_leaderGuid.GetCounter());
 
     SQLTransaction trans = CharacterDatabase.BeginTransaction();
 
@@ -1233,7 +1233,7 @@ bool Guild::Create(Player* pLeader, std::string const& name)
     stmt = CharacterDatabase.GetPreparedStatement(CHAR_INS_GUILD);
     stmt->setUInt32(  index, m_id);
     stmt->setString(++index, name);
-    stmt->setUInt32(++index, GUID_LOPART(m_leaderGuid));
+    stmt->setUInt32(++index, m_leaderGuid.GetCounter());
     stmt->setString(++index, m_info);
     stmt->setString(++index, m_motd);
     stmt->setUInt64(++index, uint32(m_createdDate));
@@ -1251,7 +1251,7 @@ bool Guild::Create(Player* pLeader, std::string const& name)
 
     if (ret)
     {
-        _BroadcastEvent(GE_FOUNDER, 0);
+        _BroadcastEvent(GE_FOUNDER, ObjectGuid::Empty);
         sScriptMgr->OnGuildCreate(this, pLeader, name);
     }
 
@@ -1264,7 +1264,7 @@ void Guild::Disband()
     // Call scripts before guild data removed from database
     sScriptMgr->OnGuildDisband(this);
 
-    _BroadcastEvent(GE_DISBANDED, 0);
+    _BroadcastEvent(GE_DISBANDED, ObjectGuid::Empty);
     // Remove all members
     while (!m_members.empty())
     {
@@ -1587,7 +1587,7 @@ void Guild::HandleSetMOTD(WorldSession* session, std::string const& motd)
         stmt->setUInt32(1, m_id);
         CharacterDatabase.Execute(stmt);
 
-        _BroadcastEvent(GE_MOTD, 0, motd.c_str());
+        _BroadcastEvent(GE_MOTD, ObjectGuid::Empty, motd.c_str());
     }
 }
 
@@ -1644,7 +1644,7 @@ void Guild::HandleSetNewGuildMaster(WorldSession* session, std::string const& na
         {
             _SetLeaderGUID(newGuildMaster);
             oldGuildMaster->ChangeRank(GR_INITIATE);
-            _BroadcastEvent(GE_LEADER_CHANGED, 0, player->GetName().c_str(), name.c_str());
+            _BroadcastEvent(GE_LEADER_CHANGED, ObjectGuid::Empty, player->GetName().c_str(), name.c_str());
         }
     }
 }
@@ -1663,10 +1663,10 @@ void Guild::HandleSetBankTabInfo(WorldSession* session, uint8 tabId, std::string
     sprintf(aux, "%u", tabId);
 
     tab->SetInfo(name, icon);
-    _BroadcastEvent(GE_BANK_TAB_UPDATED, 0, aux, name.c_str(), icon.c_str());
+    _BroadcastEvent(GE_BANK_TAB_UPDATED, ObjectGuid::Empty, aux, name.c_str(), icon.c_str());
 }
 
-void Guild::HandleSetMemberNote(WorldSession* session, std::string const& note, uint64 guid, bool isPublic)
+void Guild::HandleSetMemberNote(WorldSession* session, std::string const& note, ObjectGuid guid, bool isPublic)
 {
     // Player must have rights to set public/officer note
     if (!_HasRankRight(session->GetPlayer(), isPublic ? GR_RIGHT_EPNOTE : GR_RIGHT_EOFFNOTE))
@@ -1700,7 +1700,7 @@ void Guild::HandleSetRankInfo(WorldSession* session, uint8 rankId, std::string c
 
         char aux[2];
         sprintf(aux, "%u", rankId);
-        _BroadcastEvent(GE_RANK_UPDATED, 0, aux);
+        _BroadcastEvent(GE_RANK_UPDATED, ObjectGuid::Empty, aux);
     }
 }
 
@@ -1735,7 +1735,7 @@ void Guild::HandleBuyBankTab(WorldSession* session, uint8 tabId)
     }
 
     _CreateNewBankTab();
-    _BroadcastEvent(GE_BANK_TAB_PURCHASED, 0);
+    _BroadcastEvent(GE_BANK_TAB_PURCHASED, ObjectGuid::Empty);
     SendPermissions(session); /// Hack to force client to update permissions
 }
 
@@ -1794,7 +1794,10 @@ void Guild::HandleInviteMember(WorldSession* session, std::string const& name)
     data << uint32(m_emblemInfo.GetBackgroundColor());
     data << uint32(m_emblemInfo.GetColor());
 
-    ObjectGuid oldGuildGuid = MAKE_NEW_GUID(pInvitee->GetGuildId(), 0, pInvitee->GetGuildId() ? uint32(HIGHGUID_GUILD) : 0);
+    ObjectGuid oldGuildGuid;
+    if (uint32 oldId = pInvitee->GetGuildId())
+        oldGuildGuid = ObjectGuid(HIGHGUID_GUILD, pInvitee->GetGuildId());
+
     ObjectGuid newGuildGuid = GetGUID();
 
     data.WriteBit(newGuildGuid[3]);
@@ -1895,7 +1898,7 @@ void Guild::HandleLeaveMember(WorldSession* session)
         delete this;
 }
 
-void Guild::HandleRemoveMember(WorldSession* session, uint64 guid)
+void Guild::HandleRemoveMember(WorldSession* session, ObjectGuid guid)
 {
     Player* player = session->GetPlayer();
 
@@ -1919,15 +1922,15 @@ void Guild::HandleRemoveMember(WorldSession* session, uint64 guid)
             {
                 // After call to DeleteMember pointer to member becomes invalid
                 DeleteMember(guid, false, true);
-                _LogEvent(GUILD_EVENT_LOG_UNINVITE_PLAYER, player->GetGUIDLow(), GUID_LOPART(guid));
-                _BroadcastEvent(GE_REMOVED, 0, name.c_str(), player->GetName().c_str());
+                _LogEvent(GUILD_EVENT_LOG_UNINVITE_PLAYER, player->GetGUIDLow(), guid.GetCounter());
+                _BroadcastEvent(GE_REMOVED, ObjectGuid::Empty, name.c_str(), player->GetName().c_str());
                 SendCommandResult(session, GUILD_COMMAND_REMOVE, ERR_GUILD_COMMAND_SUCCESS, name);
             }
         }
     }
 }
 
-void Guild::HandleUpdateMemberRank(WorldSession* session, uint64 guid, bool demote)
+void Guild::HandleUpdateMemberRank(WorldSession* session, ObjectGuid guid, bool demote)
 {
     Player* player = session->GetPlayer();
     GuildCommandType type = demote ? GUILD_COMMAND_DEMOTE : GUILD_COMMAND_PROMOTE;
@@ -1975,12 +1978,12 @@ void Guild::HandleUpdateMemberRank(WorldSession* session, uint64 guid, bool demo
 
         uint32 newRankId = member->GetRankId() + (demote ? 1 : -1);
         member->ChangeRank(newRankId);
-        _LogEvent(demote ? GUILD_EVENT_LOG_DEMOTE_PLAYER : GUILD_EVENT_LOG_PROMOTE_PLAYER, player->GetGUIDLow(), GUID_LOPART(member->GetGUID()), newRankId);
-        _BroadcastEvent(demote ? GE_DEMOTION : GE_PROMOTION, 0, player->GetName().c_str(), name.c_str(), _GetRankName(newRankId).c_str());
+        _LogEvent(demote ? GUILD_EVENT_LOG_DEMOTE_PLAYER : GUILD_EVENT_LOG_PROMOTE_PLAYER, player->GetGUIDLow(), member->GetGUID().GetCounter(), newRankId);
+        _BroadcastEvent(demote ? GE_DEMOTION : GE_PROMOTION, ObjectGuid::Empty, player->GetName().c_str(), name.c_str(), _GetRankName(newRankId).c_str());
     }
 }
 
-void Guild::HandleSetMemberRank(WorldSession* session, uint64 targetGuid, uint64 setterGuid, uint32 rank)
+void Guild::HandleSetMemberRank(WorldSession* session, ObjectGuid targetGuid, ObjectGuid setterGuid, uint32 rank)
 {
     Player* player = session->GetPlayer();
     Member* member = GetMember(targetGuid);
@@ -2019,7 +2022,7 @@ void Guild::HandleAddNewRank(WorldSession* session, std::string const& name)
     // Only leader can add new rank
     if (_IsLeader(session->GetPlayer()))
         if (_CreateRank(name, GR_RIGHT_GCHATLISTEN | GR_RIGHT_GCHATSPEAK))
-            _BroadcastEvent(GE_RANK_CREATED, 0);
+            _BroadcastEvent(GE_RANK_CREATED, ObjectGuid::Empty);
 }
 
 void Guild::HandleRemoveRank(WorldSession* session, uint8 rankId)
@@ -2041,7 +2044,7 @@ void Guild::HandleRemoveRank(WorldSession* session, uint8 rankId)
 
     m_ranks.erase(m_ranks.begin() + rankId);
 
-    _BroadcastEvent(GE_RANK_DELETED, rankId);
+    _BroadcastEvent(GE_RANK_DELETED, ObjectGuid::Empty, std::to_string(rankId).c_str());
 }
 
 void Guild::HandleMemberDepositMoney(WorldSession* session, uint64 amount, bool cashFlow /*=false*/)
@@ -2063,7 +2066,7 @@ void Guild::HandleMemberDepositMoney(WorldSession* session, uint64 amount, bool
     CharacterDatabase.CommitTransaction(trans);
 
     std::string aux = ByteArrayToHexStr(reinterpret_cast<uint8*>(&m_bankMoney), 8, true);
-    _BroadcastEvent(GE_BANK_MONEY_SET, 0, aux.c_str());
+    _BroadcastEvent(GE_BANK_MONEY_SET, ObjectGuid::Empty, aux.c_str());
 
     if (player->GetSession()->HasPermission(rbac::RBAC_PERM_LOG_GM_TRADE))
     {
@@ -2113,7 +2116,7 @@ bool Guild::HandleMemberWithdrawMoney(WorldSession* session, uint64 amount, bool
     CharacterDatabase.CommitTransaction(trans);
 
     std::string aux = ByteArrayToHexStr(reinterpret_cast<uint8*>(&m_bankMoney), 8, true);
-    _BroadcastEvent(GE_BANK_MONEY_SET, 0, aux.c_str());
+    _BroadcastEvent(GE_BANK_MONEY_SET, ObjectGuid::Empty, aux.c_str());
     return true;
 }
 
@@ -2368,7 +2371,7 @@ bool Guild::LoadFromDB(Field* fields)
 {
     m_id            = fields[0].GetUInt32();
     m_name          = fields[1].GetString();
-    m_leaderGuid    = MAKE_NEW_GUID(fields[2].GetUInt32(), 0, HIGHGUID_PLAYER);
+    m_leaderGuid    = ObjectGuid(HIGHGUID_PLAYER, fields[2].GetUInt32());
     m_emblemInfo.LoadFromDB(fields);
     m_info          = fields[8].GetString();
     m_motd          = fields[9].GetString();
@@ -2402,7 +2405,7 @@ void Guild::LoadRankFromDB(Field* fields)
 bool Guild::LoadMemberFromDB(Field* fields)
 {
     uint32 lowguid = fields[1].GetUInt32();
-    Member *member = new Member(m_id, MAKE_NEW_GUID(lowguid, 0, HIGHGUID_PLAYER), fields[2].GetUInt8());
+    Member *member = new Member(m_id, ObjectGuid(HIGHGUID_PLAYER, lowguid), fields[2].GetUInt8());
     if (!member->LoadFromDB(fields))
     {
         _DeleteMemberFromDB(lowguid);
@@ -2484,13 +2487,13 @@ void Guild::LoadGuildNewsLogFromDB(Field* fields)
         return;
 
     m_newsLog->LoadEvent(new NewsLogEntry(
-    m_id,                                       // guild id
-    fields[1].GetUInt32(),                      // guid
-    fields[6].GetUInt32(),                      // timestamp //64 bits?
-    GuildNews(fields[2].GetUInt8()),            // type
-    fields[3].GetUInt32(),                      // player guid
-    fields[4].GetUInt32(),                      // Flags
-    fields[5].GetUInt32()));                    // value
+    m_id,                                               // guild id
+    fields[1].GetUInt32(),                              // guid
+    fields[6].GetUInt32(),                              // timestamp //64 bits?
+    GuildNews(fields[2].GetUInt8()),                    // type
+    ObjectGuid(HIGHGUID_PLAYER, fields[3].GetUInt32()), // player guid
+    fields[4].GetUInt32(),                              // Flags
+    fields[5].GetUInt32()));                            // value
 }
 
 void Guild::LoadBankTabFromDB(Field* fields)
@@ -2661,7 +2664,7 @@ void Guild::MassInviteToEvent(WorldSession* session, uint32 minLevel, uint32 max
 
         if (member->GetGUID() != session->GetPlayer()->GetGUID() && level >= minLevel && level <= maxLevel && member->IsRankNotLower(minRank))
         {
-            data.appendPackGUID(member->GetGUID());
+            data.appendPackGUID(member->GetGUID().GetRawValue());
             data << uint8(0); // unk
             ++count;
         }
@@ -2673,7 +2676,7 @@ void Guild::MassInviteToEvent(WorldSession* session, uint32 minLevel, uint32 max
 }
 
 // Members handling
-bool Guild::AddMember(uint64 guid, uint8 rankId)
+bool Guild::AddMember(ObjectGuid guid, uint8 rankId)
 {
     Player* player = ObjectAccessor::FindPlayer(guid);
     // Player cannot be in guild
@@ -2689,7 +2692,7 @@ bool Guild::AddMember(uint64 guid, uint8 rankId)
     // This will be prevent attempt to join many guilds and corrupt guild data integrity
     Player::RemovePetitionsAndSigns(guid, GUILD_CHARTER_TYPE);
 
-    uint32 lowguid = GUID_LOPART(guid);
+    uint32 lowguid = guid.GetCounter();
 
     // If rank was not passed, assign lowest possible rank
     if (rankId == GUILD_RANK_NONE)
@@ -2752,9 +2755,9 @@ bool Guild::AddMember(uint64 guid, uint8 rankId)
     return true;
 }
 
-void Guild::DeleteMember(uint64 guid, bool isDisbanding, bool isKicked, bool canDeleteGuild)
+void Guild::DeleteMember(ObjectGuid guid, bool isDisbanding, bool isKicked, bool canDeleteGuild)
 {
-    uint32 lowguid = GUID_LOPART(guid);
+    uint32 lowguid = guid.GetCounter();
     Player* player = ObjectAccessor::FindPlayer(guid);
 
     // Guild master can be deleted when loading guild and guid doesn't exist in characters table
@@ -2788,7 +2791,7 @@ void Guild::DeleteMember(uint64 guid, bool isDisbanding, bool isKicked, bool can
         // If leader does not exist (at guild loading with deleted leader) do not send broadcasts
         if (oldLeader)
         {
-            _BroadcastEvent(GE_LEADER_CHANGED, 0, oldLeader->GetName().c_str(), newLeader->GetName().c_str());
+            _BroadcastEvent(GE_LEADER_CHANGED, ObjectGuid::Empty, oldLeader->GetName().c_str(), newLeader->GetName().c_str());
             _BroadcastEvent(GE_LEFT, guid, oldLeader->GetName().c_str());
         }
     }
@@ -2817,7 +2820,7 @@ void Guild::DeleteMember(uint64 guid, bool isDisbanding, bool isKicked, bool can
         _UpdateAccountsNumber();
 }
 
-bool Guild::ChangeMemberRank(uint64 guid, uint8 newRank)
+bool Guild::ChangeMemberRank(ObjectGuid guid, uint8 newRank)
 {
     if (newRank <= _GetLowestRankId())                    // Validate rank (allow only existing ranks)
         if (Member* member = GetMember(guid))
@@ -2828,9 +2831,9 @@ bool Guild::ChangeMemberRank(uint64 guid, uint8 newRank)
     return false;
 }
 
-bool Guild::IsMember(uint64 guid) const
+bool Guild::IsMember(ObjectGuid guid) const
 {
-    Members::const_iterator itr = m_members.find(GUID_LOPART(guid));
+    Members::const_iterator itr = m_members.find(guid.GetCounter());
     return itr != m_members.end();
 }
 
@@ -3003,7 +3006,7 @@ void Guild::_SetLeaderGUID(Member* pLeader)
     pLeader->ChangeRank(GR_GUILDMASTER);
 
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_UPD_GUILD_LEADER);
-    stmt->setUInt32(0, GUID_LOPART(m_leaderGuid));
+    stmt->setUInt32(0, m_leaderGuid.GetCounter());
     stmt->setUInt32(1, m_id);
     CharacterDatabase.Execute(stmt);
 }
@@ -3094,7 +3097,7 @@ inline int32 Guild::_GetMemberRemainingMoney(Member const* member) const
     return 0;
 }
 
-inline void Guild::_UpdateMemberWithdrawSlots(SQLTransaction& trans, uint64 guid, uint8 tabId)
+inline void Guild::_UpdateMemberWithdrawSlots(SQLTransaction& trans, ObjectGuid guid, uint8 tabId)
 {
     if (Member* member = GetMember(guid))
     {
@@ -3105,7 +3108,7 @@ inline void Guild::_UpdateMemberWithdrawSlots(SQLTransaction& trans, uint64 guid
     }
 }
 
-inline bool Guild::_MemberHasTabRights(uint64 guid, uint8 tabId, uint32 rights) const
+inline bool Guild::_MemberHasTabRights(ObjectGuid guid, uint8 tabId, uint32 rights) const
 {
     if (const Member* member = GetMember(guid))
     {
@@ -3365,7 +3368,7 @@ void Guild::_SendBankContentUpdate(uint8 tabId, SlotIds slots) const
     }
 }
 
-void Guild::_BroadcastEvent(GuildEvents guildEvent, uint64 guid, const char* param1, const char* param2, const char* param3) const
+void Guild::_BroadcastEvent(GuildEvents guildEvent, ObjectGuid guid, const char* param1, const char* param2, const char* param3) const
 {
     uint8 count = !param3 ? (!param2 ? (!param1 ? 0 : 1) : 2) : 3;
 
@@ -3478,58 +3481,55 @@ void Guild::SendBankList(WorldSession* session, uint8 tabId, bool withContent, b
     TC_LOG_DEBUG("guild", "WORLD: Sent (SMSG_GUILD_BANK_LIST)");
 }
 
-void Guild::SendGuildRanksUpdate(uint64 setterGuid, uint64 targetGuid, uint32 rank)
+void Guild::SendGuildRanksUpdate(ObjectGuid setterGuid, ObjectGuid targetGuid, uint32 rank)
 {
-    ObjectGuid tarGuid = targetGuid;
-    ObjectGuid setGuid = setterGuid;
-
     Member* member = GetMember(targetGuid);
     ASSERT(member);
 
     WorldPacket data(SMSG_GUILD_RANKS_UPDATE, 100);
-    data.WriteBit(setGuid[7]);
-    data.WriteBit(setGuid[2]);
-    data.WriteBit(tarGuid[2]);
-    data.WriteBit(setGuid[1]);
-    data.WriteBit(tarGuid[1]);
-    data.WriteBit(tarGuid[7]);
-    data.WriteBit(tarGuid[0]);
-    data.WriteBit(tarGuid[5]);
-    data.WriteBit(tarGuid[4]);
+    data.WriteBit(setterGuid[7]);
+    data.WriteBit(setterGuid[2]);
+    data.WriteBit(targetGuid[2]);
+    data.WriteBit(setterGuid[1]);
+    data.WriteBit(targetGuid[1]);
+    data.WriteBit(targetGuid[7]);
+    data.WriteBit(targetGuid[0]);
+    data.WriteBit(targetGuid[5]);
+    data.WriteBit(targetGuid[4]);
     data.WriteBit(rank < member->GetRankId()); // 1 == higher, 0 = lower?
-    data.WriteBit(setGuid[5]);
-    data.WriteBit(setGuid[0]);
-    data.WriteBit(tarGuid[6]);
-    data.WriteBit(setGuid[3]);
-    data.WriteBit(setGuid[6]);
-    data.WriteBit(tarGuid[3]);
-    data.WriteBit(setGuid[4]);
+    data.WriteBit(setterGuid[5]);
+    data.WriteBit(setterGuid[0]);
+    data.WriteBit(targetGuid[6]);
+    data.WriteBit(setterGuid[3]);
+    data.WriteBit(setterGuid[6]);
+    data.WriteBit(targetGuid[3]);
+    data.WriteBit(setterGuid[4]);
 
     data.FlushBits();
 
     data << uint32(rank);
-    data.WriteByteSeq(setGuid[3]);
-    data.WriteByteSeq(tarGuid[7]);
-    data.WriteByteSeq(setGuid[6]);
-    data.WriteByteSeq(setGuid[2]);
-    data.WriteByteSeq(tarGuid[5]);
-    data.WriteByteSeq(tarGuid[0]);
-    data.WriteByteSeq(setGuid[7]);
-    data.WriteByteSeq(setGuid[5]);
-    data.WriteByteSeq(tarGuid[2]);
-    data.WriteByteSeq(tarGuid[1]);
-    data.WriteByteSeq(setGuid[0]);
-    data.WriteByteSeq(setGuid[4]);
-    data.WriteByteSeq(setGuid[1]);
-    data.WriteByteSeq(tarGuid[3]);
-    data.WriteByteSeq(tarGuid[6]);
-    data.WriteByteSeq(tarGuid[4]);
+    data.WriteByteSeq(setterGuid[3]);
+    data.WriteByteSeq(targetGuid[7]);
+    data.WriteByteSeq(setterGuid[6]);
+    data.WriteByteSeq(setterGuid[2]);
+    data.WriteByteSeq(targetGuid[5]);
+    data.WriteByteSeq(targetGuid[0]);
+    data.WriteByteSeq(setterGuid[7]);
+    data.WriteByteSeq(setterGuid[5]);
+    data.WriteByteSeq(targetGuid[2]);
+    data.WriteByteSeq(targetGuid[1]);
+    data.WriteByteSeq(setterGuid[0]);
+    data.WriteByteSeq(setterGuid[4]);
+    data.WriteByteSeq(setterGuid[1]);
+    data.WriteByteSeq(targetGuid[3]);
+    data.WriteByteSeq(targetGuid[6]);
+    data.WriteByteSeq(targetGuid[4]);
     BroadcastPacket(&data);
 
     member->ChangeRank(rank);
 
-    TC_LOG_DEBUG("network", "SMSG_GUILD_RANKS_UPDATE [Broadcast] Target: %u, Issuer: %u, RankId: %u",
-        GUID_LOPART(targetGuid), GUID_LOPART(setterGuid), rank);
+    TC_LOG_DEBUG("network", "SMSG_GUILD_RANKS_UPDATE [Broadcast] Target: %s, Issuer: %s, RankId: %u",
+        targetGuid.ToString().c_str(), setterGuid.ToString().c_str(), rank);
 }
 
 void Guild::GiveXP(uint32 xp, Player* source)
@@ -3581,7 +3581,7 @@ void Guild::GiveXP(uint32 xp, Player* source)
             }
         }
 
-        AddGuildNews(GUILD_NEWS_LEVEL_UP, 0, 0, _level);
+        AddGuildNews(GUILD_NEWS_LEVEL_UP, ObjectGuid::Empty, 0, _level);
         UpdateAchievementCriteria(ACHIEVEMENT_CRITERIA_TYPE_REACH_GUILD_LEVEL, GetLevel(), 0, 0, NULL, source);
 
         ++oldLevel;
@@ -3626,10 +3626,9 @@ void Guild::ResetTimes(bool weekly)
     }
 }
 
-void Guild::AddGuildNews(uint8 type, uint64 guid, uint32 flags, uint32 value)
+void Guild::AddGuildNews(uint8 type, ObjectGuid guid, uint32 flags, uint32 value)
 {
-    uint32 lowGuid = GUID_LOPART(guid);
-    NewsLogEntry* news = new NewsLogEntry(m_id, m_newsLog->GetNextGUID(), GuildNews(type), lowGuid, flags, value);
+    NewsLogEntry* news = new NewsLogEntry(m_id, m_newsLog->GetNextGUID(), GuildNews(type), guid, flags, value);
 
     SQLTransaction trans = CharacterDatabase.BeginTransaction();
     m_newsLog->AddEvent(trans, news);
diff --git a/src/server/game/Guilds/Guild.h b/src/server/game/Guilds/Guild.h
index 730626e0675..a4e2f9bc5ad 100644
--- a/src/server/game/Guilds/Guild.h
+++ b/src/server/game/Guilds/Guild.h
@@ -340,7 +340,7 @@ private:
     class Member
     {
     public:
-        Member(uint32 guildId, uint64 guid, uint8 rankId):
+        Member(uint32 guildId, ObjectGuid guid, uint8 rankId) :
             m_guildId(guildId),
             m_guid(guid),
             m_zoneId(0),
@@ -378,7 +378,7 @@ private:
         bool LoadFromDB(Field* fields);
         void SaveToDB(SQLTransaction& trans) const;
 
-        uint64 GetGUID() const { return m_guid; }
+        ObjectGuid GetGUID() const { return m_guid; }
         std::string const& GetName() const { return m_name; }
         uint32 GetAccountId() const { return m_accountId; }
         uint8 GetRankId() const { return m_rankId; }
@@ -405,7 +405,7 @@ private:
         inline void UpdateLogoutTime() { m_logoutTime = ::time(NULL); }
         inline bool IsRank(uint8 rankId) const { return m_rankId == rankId; }
         inline bool IsRankNotLower(uint8 rankId) const { return m_rankId <= rankId; }
-        inline bool IsSamePlayer(uint64 guid) const { return m_guid == guid; }
+        inline bool IsSamePlayer(ObjectGuid guid) const { return m_guid == guid; }
 
         void UpdateBankWithdrawValue(SQLTransaction& trans, uint8 tabId, uint32 amount);
         int32 GetBankWithdrawValue(uint8 tabId) const;
@@ -416,7 +416,7 @@ private:
     private:
         uint32 m_guildId;
         // Fields from characters table
-        uint64 m_guid;
+        ObjectGuid m_guid;
         std::string m_name;
         uint32 m_zoneId;
         uint8 m_level;
@@ -525,16 +525,16 @@ private:
     class NewsLogEntry : public LogEntry
     {
     public:
-        NewsLogEntry(uint32 guildId, uint32 guid, GuildNews type, uint32 playerGuid, uint32 flags, uint32 value) :
+        NewsLogEntry(uint32 guildId, uint32 guid, GuildNews type, ObjectGuid playerGuid, uint32 flags, uint32 value) :
             LogEntry(guildId, guid), m_type(type), m_playerGuid(playerGuid), m_flags(flags), m_value(value) { }
 
-        NewsLogEntry(uint32 guildId, uint32 guid, time_t timestamp, GuildNews type, uint32 playerGuid, uint32 flags, uint32 value) :
+        NewsLogEntry(uint32 guildId, uint32 guid, time_t timestamp, GuildNews type, ObjectGuid playerGuid, uint32 flags, uint32 value) :
             LogEntry(guildId, guid, timestamp), m_type(type), m_playerGuid(playerGuid), m_flags(flags), m_value(value) { }
 
         ~NewsLogEntry() { }
 
         GuildNews GetType() const { return m_type; }
-        uint64 GetPlayerGuid() const { return m_playerGuid ? MAKE_NEW_GUID(m_playerGuid, 0, HIGHGUID_PLAYER) : 0; }
+        ObjectGuid GetPlayerGuid() const { return m_playerGuid; }
         uint32 GetValue() const { return m_value; }
         uint32 GetFlags() const { return m_flags; }
         void SetSticky(bool sticky)
@@ -550,7 +550,7 @@ private:
 
     private:
         GuildNews m_type;
-        uint32 m_playerGuid;
+        ObjectGuid m_playerGuid;
         uint32 m_flags;
         uint32 m_value;
     };
@@ -775,8 +775,8 @@ public:
 
     // Getters
     uint32 GetId() const { return m_id; }
-    uint64 GetGUID() const { return MAKE_NEW_GUID(m_id, 0, HIGHGUID_GUILD); }
-    uint64 GetLeaderGUID() const { return m_leaderGuid; }
+    ObjectGuid GetGUID() const { return ObjectGuid(HIGHGUID_GUILD, m_id); }
+    ObjectGuid GetLeaderGUID() const { return m_leaderGuid; }
     std::string const& GetName() const { return m_name; }
     std::string const& GetMOTD() const { return m_motd; }
     std::string const& GetInfo() const { return m_info; }
@@ -795,15 +795,15 @@ public:
     void HandleSetEmblem(WorldSession* session, const EmblemInfo& emblemInfo);
     void HandleSetNewGuildMaster(WorldSession* session, std::string const& name);
     void HandleSetBankTabInfo(WorldSession* session, uint8 tabId, std::string const& name, std::string const& icon);
-    void HandleSetMemberNote(WorldSession* session, std::string const& note, uint64 guid, bool isPublic);
+    void HandleSetMemberNote(WorldSession* session, std::string const& note, ObjectGuid guid, bool isPublic);
     void HandleSetRankInfo(WorldSession* session, uint8 rankId, std::string const& name, uint32 rights, uint32 moneyPerDay, GuildBankRightsAndSlotsVec const& rightsAndSlots);
     void HandleBuyBankTab(WorldSession* session, uint8 tabId);
     void HandleInviteMember(WorldSession* session, std::string const& name);
     void HandleAcceptMember(WorldSession* session);
     void HandleLeaveMember(WorldSession* session);
-    void HandleRemoveMember(WorldSession* session, uint64 guid);
-    void HandleUpdateMemberRank(WorldSession* session, uint64 guid, bool demote);
-    void HandleSetMemberRank(WorldSession* session, uint64 guid, uint64 setterGuid, uint32 rank);
+    void HandleRemoveMember(WorldSession* session, ObjectGuid guid);
+    void HandleUpdateMemberRank(WorldSession* session, ObjectGuid guid, bool demote);
+    void HandleSetMemberRank(WorldSession* session, ObjectGuid guid, ObjectGuid setterGuid, uint32 rank);
     void HandleAddNewRank(WorldSession* session, std::string const& name);
     void HandleRemoveRank(WorldSession* session, uint8 rankId);
     void HandleMemberDepositMoney(WorldSession* session, uint64 amount, bool cashFlow = false);
@@ -861,10 +861,10 @@ public:
 
     // Members
     // Adds member to guild. If rankId == GUILD_RANK_NONE, lowest rank is assigned.
-    bool AddMember(uint64 guid, uint8 rankId = GUILD_RANK_NONE);
-    void DeleteMember(uint64 guid, bool isDisbanding = false, bool isKicked = false, bool canDeleteGuild = false);
-    bool ChangeMemberRank(uint64 guid, uint8 newRank);
-    bool IsMember(uint64 guid) const;
+    bool AddMember(ObjectGuid guid, uint8 rankId = GUILD_RANK_NONE);
+    void DeleteMember(ObjectGuid guid, bool isDisbanding = false, bool isKicked = false, bool canDeleteGuild = false);
+    bool ChangeMemberRank(ObjectGuid guid, uint8 newRank);
+    bool IsMember(ObjectGuid guid) const;
     uint32 GetMembersCount() { return m_members.size(); }
 
     // Bank
@@ -883,7 +883,7 @@ public:
     uint64 GetExperience() const { return _experience; }
     uint64 GetTodayExperience() const { return _todayExperience; }
 
-    void AddGuildNews(uint8 type, uint64 guid, uint32 flags, uint32 value);
+    void AddGuildNews(uint8 type, ObjectGuid guid, uint32 flags, uint32 value);
 
     EmblemInfo const& GetEmblemInfo() const { return m_emblemInfo; }
     void ResetTimes(bool weekly);
@@ -894,7 +894,7 @@ public:
 protected:
     uint32 m_id;
     std::string m_name;
-    uint64 m_leaderGuid;
+    ObjectGuid m_leaderGuid;
     std::string m_motd;
     std::string m_info;
     time_t m_createdDate;
@@ -935,15 +935,15 @@ private:
     inline BankTab* GetBankTab(uint8 tabId) { return tabId < m_bankTabs.size() ? m_bankTabs[tabId] : NULL; }
     inline const BankTab* GetBankTab(uint8 tabId) const { return tabId < m_bankTabs.size() ? m_bankTabs[tabId] : NULL; }
 
-    inline const Member* GetMember(uint64 guid) const
+    inline const Member* GetMember(ObjectGuid guid) const
     {
-        Members::const_iterator itr = m_members.find(GUID_LOPART(guid));
+        Members::const_iterator itr = m_members.find(guid.GetCounter());
         return itr != m_members.end() ? itr->second : NULL;
     }
 
-    inline Member* GetMember(uint64 guid)
+    inline Member* GetMember(ObjectGuid guid)
     {
-        Members::iterator itr = m_members.find(GUID_LOPART(guid));
+        Members::iterator itr = m_members.find(guid.GetCounter());
         return itr != m_members.end() ? itr->second : NULL;
     }
 
@@ -988,8 +988,8 @@ private:
 
     int32 _GetMemberRemainingSlots(Member const* member, uint8 tabId) const;
     int32 _GetMemberRemainingMoney(Member const* member) const;
-    void _UpdateMemberWithdrawSlots(SQLTransaction& trans, uint64 guid, uint8 tabId);
-    bool _MemberHasTabRights(uint64 guid, uint8 tabId, uint32 rights) const;
+    void _UpdateMemberWithdrawSlots(SQLTransaction& trans, ObjectGuid guid, uint8 tabId);
+    bool _MemberHasTabRights(ObjectGuid guid, uint8 tabId, uint32 rights) const;
 
     void _LogEvent(GuildEventLogTypes eventType, uint32 playerGuid1, uint32 playerGuid2 = 0, uint8 newRank = 0);
     void _LogBankEvent(SQLTransaction& trans, GuildBankEventLogTypes eventType, uint8 tabId, uint32 playerGuid, uint32 itemOrMoney, uint16 itemStackCount = 0, uint8 destTabId = 0);
@@ -1002,8 +1002,8 @@ private:
     void _SendBankContentUpdate(MoveItemData* pSrc, MoveItemData* pDest) const;
     void _SendBankContentUpdate(uint8 tabId, SlotIds slots) const;
     void SendGuildReputationWeeklyCap(WorldSession* session, uint32 reputation) const;
-    void SendGuildRanksUpdate(uint64 setterGuid, uint64 targetGuid, uint32 rank);
+    void SendGuildRanksUpdate(ObjectGuid setterGuid, ObjectGuid targetGuid, uint32 rank);
 
-    void _BroadcastEvent(GuildEvents guildEvent, uint64 guid, const char* param1 = NULL, const char* param2 = NULL, const char* param3 = NULL) const;
+    void _BroadcastEvent(GuildEvents guildEvent, ObjectGuid guid, const char* param1 = NULL, const char* param2 = NULL, const char* param3 = NULL) const;
 };
 #endif
diff --git a/src/server/game/Guilds/GuildFinderMgr.cpp b/src/server/game/Guilds/GuildFinderMgr.cpp
index 024f4f4bd38..d0c564ee6ba 100644
--- a/src/server/game/Guilds/GuildFinderMgr.cpp
+++ b/src/server/game/Guilds/GuildFinderMgr.cpp
@@ -102,7 +102,7 @@ void GuildFinderMgr::LoadMembershipRequests()
         std::string comment = fields[5].GetString();
         uint32 submitTime   = fields[6].GetUInt32();
 
-        MembershipRequest request(playerId, guildId, availability, classRoles, interests, comment, time_t(submitTime));
+        MembershipRequest request(ObjectGuid(HIGHGUID_PLAYER, playerId), guildId, availability, classRoles, interests, comment, time_t(submitTime));
 
         _membershipRequests[guildId].push_back(request);
 
@@ -129,7 +129,7 @@ void GuildFinderMgr::AddMembershipRequest(uint32 guildGuid, MembershipRequest co
     CharacterDatabase.CommitTransaction(trans);
 
     // Notify the applicant his submittion has been added
-    if (Player* player = ObjectAccessor::FindPlayer(MAKE_NEW_GUID(request.GetPlayerGUID(), 0, HIGHGUID_PLAYER)))
+    if (Player* player = ObjectAccessor::FindPlayer(request.GetPlayerGUID()))
         SendMembershipRequestListUpdate(*player);
 
     // Notify the guild master and officers the list changed
@@ -178,7 +178,7 @@ void GuildFinderMgr::RemoveMembershipRequest(uint32 playerId, uint32 guildId)
 
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_GUILD_FINDER_APPLICANT);
     stmt->setUInt32(0, itr->GetGuildId());
-    stmt->setUInt32(1, itr->GetPlayerGUID());
+    stmt->setUInt32(1, itr->GetPlayerGUID().GetCounter());
     trans->Append(stmt);
 
     CharacterDatabase.CommitTransaction(trans);
@@ -186,7 +186,7 @@ void GuildFinderMgr::RemoveMembershipRequest(uint32 playerId, uint32 guildId)
     _membershipRequests[guildId].erase(itr);
 
     // Notify the applicant his submittion has been removed
-    if (Player* player = ObjectAccessor::FindPlayer(MAKE_NEW_GUID(playerId, 0, HIGHGUID_PLAYER)))
+    if (Player* player = ObjectAccessor::FindPlayer(itr->GetPlayerGUID()))
         SendMembershipRequestListUpdate(*player);
 
     // Notify the guild master and officers the list changed
@@ -304,7 +304,7 @@ void GuildFinderMgr::DeleteGuild(uint32 guildId)
         CharacterDatabase.CommitTransaction(trans);
 
         // Notify the applicant his submition has been removed
-        if (Player* player = ObjectAccessor::FindPlayer(MAKE_NEW_GUID(applicant, 0, HIGHGUID_PLAYER)))
+        if (Player* player = ObjectAccessor::FindPlayer(itr->GetPlayerGUID()))
             SendMembershipRequestListUpdate(*player);
 
         ++itr;
diff --git a/src/server/game/Guilds/GuildFinderMgr.h b/src/server/game/Guilds/GuildFinderMgr.h
index 9fc62d43935..f3bda3612a1 100644
--- a/src/server/game/Guilds/GuildFinderMgr.h
+++ b/src/server/game/Guilds/GuildFinderMgr.h
@@ -19,6 +19,7 @@
 #define __TRINITY_GUILDFINDER_H
 
 #include "Common.h"
+#include "ObjectGuid.h"
 #include "World.h"
 #include "GuildMgr.h"
 
@@ -68,15 +69,15 @@ struct MembershipRequest
             _time = settings.GetSubmitTime();
         }
 
-        MembershipRequest(uint32 playerGUID, uint32 guildId, uint32 availability, uint32 classRoles, uint32 interests, std::string& comment, time_t submitTime) :
+        MembershipRequest(ObjectGuid playerGUID, uint32 guildId, uint32 availability, uint32 classRoles, uint32 interests, std::string& comment, time_t submitTime) :
             _comment(comment), _guildId(guildId), _playerGUID(playerGUID), _availability(availability),
             _classRoles(classRoles), _interests(interests), _time(submitTime)  {}
 
-        MembershipRequest() : _guildId(0), _playerGUID(0), _availability(0), _classRoles(0),
+        MembershipRequest() : _guildId(0), _availability(0), _classRoles(0),
             _interests(0), _time(time(NULL)) {}
 
         uint32 GetGuildId() const      { return _guildId; }
-        uint32 GetPlayerGUID() const   { return _playerGUID; }
+        ObjectGuid GetPlayerGUID() const   { return _playerGUID; }
         uint8 GetAvailability() const  { return _availability; }
         uint8 GetClassRoles() const    { return _classRoles; }
         uint8 GetInterests() const     { return _interests; }
@@ -90,7 +91,7 @@ struct MembershipRequest
         std::string _comment;
 
         uint32 _guildId;
-        uint32 _playerGUID;
+        ObjectGuid _playerGUID;
 
         uint8 _availability;
         uint8 _classRoles;
diff --git a/src/server/game/Guilds/GuildMgr.cpp b/src/server/game/Guilds/GuildMgr.cpp
index bdb0b7dce52..3277f5bbbae 100644
--- a/src/server/game/Guilds/GuildMgr.cpp
+++ b/src/server/game/Guilds/GuildMgr.cpp
@@ -63,12 +63,12 @@ Guild* GuildMgr::GetGuildById(uint32 guildId) const
     return NULL;
 }
 
-Guild* GuildMgr::GetGuildByGuid(uint64 guid) const
+Guild* GuildMgr::GetGuildByGuid(ObjectGuid guid) const
 {
     // Full guids are only used when receiving/sending data to client
     // everywhere else guild id is used
-    if (IS_GUILD_GUID(guid))
-        if (uint32 guildId = GUID_LOPART(guid))
+    if (guid.IsGuild())
+        if (uint32 guildId = guid.GetCounter())
             return GetGuildById(guildId);
 
     return NULL;
@@ -96,7 +96,7 @@ std::string GuildMgr::GetGuildNameById(uint32 guildId) const
     return "";
 }
 
-Guild* GuildMgr::GetGuildByLeader(uint64 guid) const
+Guild* GuildMgr::GetGuildByLeader(ObjectGuid guid) const
 {
     for (GuildContainer::const_iterator itr = GuildStore.begin(); itr != GuildStore.end(); ++itr)
         if (itr->second->GetLeaderGUID() == guid)
diff --git a/src/server/game/Guilds/GuildMgr.h b/src/server/game/Guilds/GuildMgr.h
index 5df59f7e8ea..6e643edcb54 100644
--- a/src/server/game/Guilds/GuildMgr.h
+++ b/src/server/game/Guilds/GuildMgr.h
@@ -33,9 +33,9 @@ public:
         return &instance;
     }
 
-    Guild* GetGuildByLeader(uint64 guid) const;
+    Guild* GetGuildByLeader(ObjectGuid guid) const;
     Guild* GetGuildById(uint32 guildId) const;
-    Guild* GetGuildByGuid(uint64 guid) const;
+    Guild* GetGuildByGuid(ObjectGuid guid) const;
     Guild* GetGuildByName(std::string const& guildName) const;
     std::string GetGuildNameById(uint32 guildId) const;
 
diff --git a/src/server/game/Handlers/ArenaTeamHandler.cpp b/src/server/game/Handlers/ArenaTeamHandler.cpp
index 11c889fa726..d9303d0295a 100644
--- a/src/server/game/Handlers/ArenaTeamHandler.cpp
+++ b/src/server/game/Handlers/ArenaTeamHandler.cpp
@@ -33,9 +33,9 @@ void WorldSession::HandleInspectArenaTeamsOpcode(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "MSG_INSPECT_ARENA_TEAMS");
 
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
-    TC_LOG_DEBUG("network", "Inspect Arena stats (GUID: %u TypeId: %u)", GUID_LOPART(guid), GuidHigh2TypeId(GUID_HIPART(guid)));
+    TC_LOG_DEBUG("network", "Inspect Arena stats %s", guid.ToString().c_str());
 
     Player* player = ObjectAccessor::FindPlayer(guid);
 
@@ -119,7 +119,7 @@ void WorldSession::HandleArenaTeamCreateOpcode(WorldPacket & recvData)
     }
 
     ArenaTeam* arenaTeam = new ArenaTeam;
-    if (!arenaTeam->Create(GUID_LOPART(_player->GetGUID()), type, name, background, icon, iconcolor, border, bordercolor))
+    if (!arenaTeam->Create(_player->GetGUID(), type, name, background, icon, iconcolor, border, bordercolor))
     {
         TC_LOG_ERROR("bg.arena", "Arena team create failed.");
         delete arenaTeam;
@@ -373,7 +373,7 @@ void WorldSession::HandleArenaTeamRemoveOpcode(WorldPacket& recvData)
     arenaTeam->DelMember(member->Guid, true);
 
     // Broadcast event
-    arenaTeam->BroadcastEvent(ERR_ARENA_TEAM_REMOVE_SSS, 0, 3, name, arenaTeam->GetName(), _player->GetName());
+    arenaTeam->BroadcastEvent(ERR_ARENA_TEAM_REMOVE_SSS, ObjectGuid::Empty, 3, name, arenaTeam->GetName(), _player->GetName());
 }
 
 void WorldSession::HandleArenaTeamLeaderOpcode(WorldPacket& recvData)
@@ -416,7 +416,7 @@ void WorldSession::HandleArenaTeamLeaderOpcode(WorldPacket& recvData)
     arenaTeam->SetCaptain(member->Guid);
 
     // Broadcast event
-    arenaTeam->BroadcastEvent(ERR_ARENA_TEAM_LEADER_CHANGED_SSS, 0, 3, _player->GetName(), name, arenaTeam->GetName());
+    arenaTeam->BroadcastEvent(ERR_ARENA_TEAM_LEADER_CHANGED_SSS, ObjectGuid::Empty, 3, _player->GetName(), name, arenaTeam->GetName());
 }
 
 void WorldSession::SendArenaTeamCommandResult(uint32 teamAction, const std::string& team, const std::string& player, uint32 errorId)
diff --git a/src/server/game/Handlers/AuctionHouseHandler.cpp b/src/server/game/Handlers/AuctionHouseHandler.cpp
index 12bc18298b7..ca1787462ba 100644
--- a/src/server/game/Handlers/AuctionHouseHandler.cpp
+++ b/src/server/game/Handlers/AuctionHouseHandler.cpp
@@ -33,13 +33,13 @@
 //void called when player click on auctioneer npc
 void WorldSession::HandleAuctionHelloOpcode(WorldPacket& recvData)
 {
-    uint64 guid;                                            //NPC guid
+    ObjectGuid guid;                                            //NPC guid
     recvData >> guid;
 
     Creature* unit = GetPlayer()->GetNPCIfCanInteractWith(guid, UNIT_NPC_FLAG_AUCTIONEER);
     if (!unit)
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleAuctionHelloOpcode - Unit (GUID: %u) not found or you can't interact with him.", uint32(GUID_LOPART(guid)));
+        TC_LOG_DEBUG("network", "WORLD: HandleAuctionHelloOpcode - Unit (%s) not found or you can't interact with him.", guid.ToString().c_str());
         return;
     }
 
@@ -51,7 +51,7 @@ void WorldSession::HandleAuctionHelloOpcode(WorldPacket& recvData)
 }
 
 //this void causes that auction window is opened
-void WorldSession::SendAuctionHello(uint64 guid, Creature* unit)
+void WorldSession::SendAuctionHello(ObjectGuid guid, Creature* unit)
 {
     if (GetPlayer()->getLevel() < sWorld->getIntConfig(CONFIG_AUCTION_LEVEL_REQ))
     {
@@ -98,7 +98,7 @@ void WorldSession::SendAuctionCommandResult(AuctionEntry* auction, uint32 action
 }
 
 //this function sends notification, if bidder is online
-void WorldSession::SendAuctionBidderNotification(uint32 location, uint32 auctionId, uint64 bidder, uint32 bidSum, uint32 diff, uint32 itemEntry)
+void WorldSession::SendAuctionBidderNotification(uint32 location, uint32 auctionId, ObjectGuid bidder, uint32 bidSum, uint32 diff, uint32 itemEntry)
 {
     WorldPacket data(SMSG_AUCTION_BIDDER_NOTIFICATION, (8*4));
     data << uint32(location);
@@ -137,13 +137,13 @@ void WorldSession::SendAuctionRemovedNotification(uint32 auctionId, uint32 itemE
 //this void creates new auction and adds auction to some auctionhouse
 void WorldSession::HandleAuctionSellItem(WorldPacket& recvData)
 {
-    uint64 auctioneer, bid, buyout;
+    ObjectGuid auctioneer;
+    uint64 bid, buyout;
     uint32 itemsCount, etime;
     recvData >> auctioneer;
     recvData >> itemsCount;
 
-    uint64 itemGUIDs[MAX_AUCTION_ITEMS]; // 160 slot = 4x 36 slot bag + backpack 16 slot
-    memset(itemGUIDs, 0, sizeof(itemGUIDs));
+    ObjectGuid itemGUIDs[MAX_AUCTION_ITEMS]; // 160 slot = 4x 36 slot bag + backpack 16 slot
     uint32 count[MAX_AUCTION_ITEMS];
     memset(count, 0, sizeof(count));
 
@@ -184,14 +184,14 @@ void WorldSession::HandleAuctionSellItem(WorldPacket& recvData)
     Creature* creature = GetPlayer()->GetNPCIfCanInteractWith(auctioneer, UNIT_NPC_FLAG_AUCTIONEER);
     if (!creature)
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleAuctionSellItem - Unit (GUID: %u) not found or you can't interact with him.", GUID_LOPART(auctioneer));
+        TC_LOG_DEBUG("network", "WORLD: HandleAuctionSellItem - Unit (%s) not found or you can't interact with him.", auctioneer.ToString().c_str());
         return;
     }
 
     AuctionHouseEntry const* auctionHouseEntry = AuctionHouseMgr::GetAuctionHouseEntry(creature->getFaction());
     if (!auctionHouseEntry)
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleAuctionSellItem - Unit (GUID: %u) has wrong faction.", GUID_LOPART(auctioneer));
+        TC_LOG_DEBUG("network", "WORLD: HandleAuctionSellItem - Unit (%s) has wrong faction.", auctioneer.ToString().c_str());
         return;
     }
 
@@ -287,7 +287,7 @@ void WorldSession::HandleAuctionSellItem(WorldPacket& recvData)
     if (sWorld->getBoolConfig(CONFIG_ALLOW_TWO_SIDE_INTERACTION_AUCTION))
         AH->auctioneer = 23442;     ///@TODO - HARDCODED DB GUID, BAD BAD BAD
     else
-        AH->auctioneer = GUID_LOPART(auctioneer);
+        AH->auctioneer = auctioneer.GetCounter();
 
     // Required stack size of auction matches to current item stack size, just move item to auctionhouse
     if (itemsCount == 1 && item->GetCount() == count[0])
@@ -311,10 +311,8 @@ void WorldSession::HandleAuctionSellItem(WorldPacket& recvData)
         AH->deposit = deposit;
         AH->auctionHouseEntry = auctionHouseEntry;
 
-        TC_LOG_INFO("network", "CMSG_AUCTION_SELL_ITEM: Player %s (guid %d) is selling item %s entry %u (guid %d) "
-            "to auctioneer %u with count %u with initial bid " UI64FMTD " with buyout " UI64FMTD " and with time %u (in sec) in auctionhouse %u",
-            _player->GetName().c_str(), _player->GetGUIDLow(), item->GetTemplate()->Name1.c_str(), item->GetEntry(), item->GetGUIDLow(),
-            AH->auctioneer, item->GetCount(), bid, buyout, auctionTime, AH->GetHouseId());
+        TC_LOG_INFO("network", "CMSG_AUCTION_SELL_ITEM: Player %s (guid %d) is selling item %s entry %u (guid %d) to auctioneer %u with count %u with initial bid %u with buyout %u and with time %u (in sec) in auctionhouse %u",
+            _player->GetName().c_str(), _player->GetGUIDLow(), item->GetTemplate()->Name1.c_str(), item->GetEntry(), item->GetGUIDLow(), AH->auctioneer, item->GetCount(), bid, buyout, auctionTime, AH->GetHouseId());
         sAuctionMgr->AddAItem(item);
         auctionHouse->AddAuction(AH);
 
@@ -361,10 +359,8 @@ void WorldSession::HandleAuctionSellItem(WorldPacket& recvData)
         AH->deposit = deposit;
         AH->auctionHouseEntry = auctionHouseEntry;
 
-        TC_LOG_INFO("network", "CMSG_AUCTION_SELL_ITEM: Player %s (guid %d) is selling item %s entry %u (guid %d) to "
-             "auctioneer %u with count %u with initial bid " UI64FMTD " with buyout " UI64FMTD " and with time %u (in sec) in auctionhouse %u",
-             _player->GetName().c_str(), _player->GetGUIDLow(), newItem->GetTemplate()->Name1.c_str(), newItem->GetEntry(),
-             newItem->GetGUIDLow(), AH->auctioneer, newItem->GetCount(), bid, buyout, auctionTime, AH->GetHouseId());
+        TC_LOG_INFO("network", "CMSG_AUCTION_SELL_ITEM: Player %s (guid %d) is selling item %s entry %u (guid %d) to auctioneer %u with count %u with initial bid %u with buyout %u and with time %u (in sec) in auctionhouse %u",
+            _player->GetName().c_str(), _player->GetGUIDLow(), newItem->GetTemplate()->Name1.c_str(), newItem->GetEntry(), newItem->GetGUIDLow(), AH->auctioneer, newItem->GetCount(), bid, buyout, auctionTime, AH->GetHouseId());
         sAuctionMgr->AddAItem(newItem);
         auctionHouse->AddAuction(AH);
 
@@ -415,7 +411,7 @@ void WorldSession::HandleAuctionPlaceBid(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: Received CMSG_AUCTION_PLACE_BID");
 
-    uint64 auctioneer;
+    ObjectGuid auctioneer;
     uint32 auctionId;
     uint64 price;
     recvData >> auctioneer;
@@ -428,7 +424,7 @@ void WorldSession::HandleAuctionPlaceBid(WorldPacket& recvData)
     Creature* creature = GetPlayer()->GetNPCIfCanInteractWith(auctioneer, UNIT_NPC_FLAG_AUCTIONEER);
     if (!creature)
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleAuctionPlaceBid - Unit (GUID: %u) not found or you can't interact with him.", uint32(GUID_LOPART(auctioneer)));
+        TC_LOG_DEBUG("network", "WORLD: HandleAuctionPlaceBid - %s not found or you can't interact with him.", auctioneer.ToString().c_str());
         return;
     }
 
@@ -449,13 +445,14 @@ void WorldSession::HandleAuctionPlaceBid(WorldPacket& recvData)
     }
 
     // impossible have online own another character (use this for speedup check in case online owner)
-    /*Player* auction_owner = ObjectAccessor::FindPlayer(MAKE_NEW_GUID(auction->owner, 0, HIGHGUID_PLAYER));
-    if (!auction_owner && sObjectMgr->GetPlayerAccountIdByGUID(MAKE_NEW_GUID(auction->owner, 0, HIGHGUID_PLAYER)) == player->GetSession()->GetAccountId())
+    ObjectGuid ownerGuid(HIGHGUID_PLAYER, auction->owner);
+    Player* auction_owner = ObjectAccessor::FindPlayer(ownerGuid);
+    if (!auction_owner && sObjectMgr->GetPlayerAccountIdByGUID(ownerGuid) == player->GetSession()->GetAccountId())
     {
         //you cannot bid your another character auction:
         SendAuctionCommandResult(NULL, AUCTION_PLACE_BID, ERR_AUCTION_BID_OWN);
         return;
-    }*/
+    }
 
     // cheating
     if (price <= auction->bid || price < auction->startbid)
@@ -544,7 +541,7 @@ void WorldSession::HandleAuctionRemoveItem(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: Received CMSG_AUCTION_REMOVE_ITEM");
 
-    uint64 auctioneer;
+    ObjectGuid auctioneer;
     uint32 auctionId;
     recvData >> auctioneer;
     recvData >> auctionId;
@@ -552,7 +549,7 @@ void WorldSession::HandleAuctionRemoveItem(WorldPacket& recvData)
     Creature* creature = GetPlayer()->GetNPCIfCanInteractWith(auctioneer, UNIT_NPC_FLAG_AUCTIONEER);
     if (!creature)
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleAuctionRemoveItem - Unit (GUID: %u) not found or you can't interact with him.", uint32(GUID_LOPART(auctioneer)));
+        TC_LOG_DEBUG("network", "WORLD: HandleAuctionRemoveItem - %s not found or you can't interact with him.", auctioneer.ToString().c_str());
         return;
     }
 
@@ -619,7 +616,7 @@ void WorldSession::HandleAuctionListBidderItems(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: Received CMSG_AUCTION_LIST_BIDDER_ITEMS");
 
-    uint64 guid;                                            //NPC guid
+    ObjectGuid guid;                                        //NPC guid
     uint32 listfrom;                                        //page of auctions
     uint32 outbiddedCount;                                  //count of outbidded auctions
 
@@ -635,7 +632,7 @@ void WorldSession::HandleAuctionListBidderItems(WorldPacket& recvData)
     Creature* creature = GetPlayer()->GetNPCIfCanInteractWith(guid, UNIT_NPC_FLAG_AUCTIONEER);
     if (!creature)
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleAuctionListBidderItems - Unit (GUID: %u) not found or you can't interact with him.", uint32(GUID_LOPART(guid)));
+        TC_LOG_DEBUG("network", "WORLD: HandleAuctionListBidderItems - %s not found or you can't interact with him.", guid.ToString().c_str());
         recvData.rfinish();
         return;
     }
@@ -677,7 +674,7 @@ void WorldSession::HandleAuctionListOwnerItems(WorldPacket& recvData)
     TC_LOG_DEBUG("network", "WORLD: Received CMSG_AUCTION_LIST_OWNER_ITEMS");
 
     uint32 listfrom;
-    uint64 guid;
+    ObjectGuid guid;
 
     recvData >> guid;
     recvData >> listfrom;                                  // not used in fact (this list not have page control in client)
@@ -685,7 +682,7 @@ void WorldSession::HandleAuctionListOwnerItems(WorldPacket& recvData)
     Creature* creature = GetPlayer()->GetNPCIfCanInteractWith(guid, UNIT_NPC_FLAG_AUCTIONEER);
     if (!creature)
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleAuctionListOwnerItems - Unit (GUID: %u) not found or you can't interact with him.", uint32(GUID_LOPART(guid)));
+        TC_LOG_DEBUG("network", "WORLD: HandleAuctionListOwnerItems - %s not found or you can't interact with him.", guid.ToString().c_str());
         return;
     }
 
@@ -716,7 +713,7 @@ void WorldSession::HandleAuctionListItems(WorldPacket& recvData)
     std::string searchedname;
     uint8 levelmin, levelmax, usable;
     uint32 listfrom, auctionSlotID, auctionMainCategory, auctionSubCategory, quality;
-    uint64 guid;
+    ObjectGuid guid;
 
     recvData >> guid;
     recvData >> listfrom;                                  // start, used for page control listing by 50 elements
@@ -736,7 +733,7 @@ void WorldSession::HandleAuctionListItems(WorldPacket& recvData)
     Creature* creature = GetPlayer()->GetNPCIfCanInteractWith(guid, UNIT_NPC_FLAG_AUCTIONEER);
     if (!creature)
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleAuctionListItems - Unit (GUID: %u) not found or you can't interact with him.", uint32(GUID_LOPART(guid)));
+        TC_LOG_DEBUG("network", "WORLD: HandleAuctionListItems - %s not found or you can't interact with him.", guid.ToString().c_str());
         return;
     }
 
@@ -746,8 +743,8 @@ void WorldSession::HandleAuctionListItems(WorldPacket& recvData)
 
     AuctionHouseObject* auctionHouse = sAuctionMgr->GetAuctionsMap(creature->getFaction());
 
-    //TC_LOG_DEBUG("misc", "Auctionhouse search (GUID: %u TypeId: %u)",, list from: %u, searchedname: %s, levelmin: %u, levelmax: %u, auctionSlotID: %u, auctionMainCategory: %u, auctionSubCategory: %u, quality: %u, usable: %u",
-    //  GUID_LOPART(guid), GuidHigh2TypeId(GUID_HIPART(guid)), listfrom, searchedname.c_str(), levelmin, levelmax, auctionSlotID, auctionMainCategory, auctionSubCategory, quality, usable);
+    TC_LOG_DEBUG("auctionHouse", "Auctionhouse search (%s) list from: %u, searchedname: %s, levelmin: %u, levelmax: %u, auctionSlotID: %u, auctionMainCategory: %u, auctionSubCategory: %u, quality: %u, usable: %u",
+        guid.ToString().c_str(), listfrom, searchedname.c_str(), levelmin, levelmax, auctionSlotID, auctionMainCategory, auctionSubCategory, quality, usable);
 
     WorldPacket data(SMSG_AUCTION_LIST_RESULT, (4+4+4));
     uint32 count = 0;
diff --git a/src/server/game/Handlers/BattleGroundHandler.cpp b/src/server/game/Handlers/BattleGroundHandler.cpp
index 9d641649b8d..bb67b220d7c 100644
--- a/src/server/game/Handlers/BattleGroundHandler.cpp
+++ b/src/server/game/Handlers/BattleGroundHandler.cpp
@@ -37,9 +37,9 @@
 
 void WorldSession::HandleBattlemasterHelloOpcode(WorldPacket& recvData)
 {
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
-    TC_LOG_DEBUG("network", "WORLD: Recvd CMSG_BATTLEMASTER_HELLO Message from (GUID: %u TypeId:%u)", GUID_LOPART(guid), GuidHigh2TypeId(GUID_HIPART(guid)));
+    TC_LOG_DEBUG("network", "WORLD: Recvd CMSG_BATTLEMASTER_HELLO Message from %s", guid.ToString().c_str());
 
     Creature* unit = GetPlayer()->GetMap()->GetCreature(guid);
     if (!unit)
@@ -63,7 +63,7 @@ void WorldSession::HandleBattlemasterHelloOpcode(WorldPacket& recvData)
     SendBattleGroundList(guid, bgTypeId);
 }
 
-void WorldSession::SendBattleGroundList(uint64 guid, BattlegroundTypeId bgTypeId)
+void WorldSession::SendBattleGroundList(ObjectGuid guid, BattlegroundTypeId bgTypeId)
 {
     WorldPacket data;
     sBattlegroundMgr->BuildBattlegroundListPacket(&data, guid, _player, bgTypeId);
@@ -100,7 +100,7 @@ void WorldSession::HandleBattlemasterJoinOpcode(WorldPacket& recvData)
     recvData.ReadByteSeq(guid[1]);
 
     //extract from guid
-    bgTypeId_ = GUID_LOPART(guid);
+    bgTypeId_ = guid.GetCounter();
 
     if (!sBattlemasterListStore.LookupEntry(bgTypeId_))
     {
@@ -115,7 +115,7 @@ void WorldSession::HandleBattlemasterJoinOpcode(WorldPacket& recvData)
     }
     BattlegroundTypeId bgTypeId = BattlegroundTypeId(bgTypeId_);
 
-    //TC_LOG_DEBUG("network", "WORLD: Recvd CMSG_BATTLEMASTER_JOIN Message from (GUID:"UI64FMTD" TypeId:%u)", guid, bgTypeId_);
+    TC_LOG_DEBUG("network", "WORLD: Recvd CMSG_BATTLEMASTER_JOIN Message from %s", guid.ToString().c_str());
 
     // can do this, since it's battleground, not arena
     BattlegroundQueueTypeId bgQueueTypeId = BattlegroundMgr::BGQueueTypeId(bgTypeId, 0);
@@ -279,22 +279,22 @@ void WorldSession::HandleBattlegroundPlayerPositionsOpcode(WorldPacket& /*recvDa
     Player* aplr = NULL;
     Player* hplr = NULL;
 
-    if (uint64 guid = bg->GetFlagPickerGUID(TEAM_ALLIANCE))
+    if (ObjectGuid guid = bg->GetFlagPickerGUID(TEAM_ALLIANCE))
     {
         aplr = ObjectAccessor::FindPlayer(guid);
         if (aplr)
             ++acount;
     }
 
-    if (uint64 guid = bg->GetFlagPickerGUID(TEAM_HORDE))
+    if (ObjectGuid guid = bg->GetFlagPickerGUID(TEAM_HORDE))
     {
         hplr = ObjectAccessor::FindPlayer(guid);
         if (hplr)
             ++hcount;
     }
 
-    ObjectGuid aguid = aplr ? aplr->GetGUID() : 0;
-    ObjectGuid hguid = hplr ? hplr->GetGUID() : 0;
+    ObjectGuid aguid = aplr ? aplr->GetGUID() : ObjectGuid::Empty;
+    ObjectGuid hguid = hplr ? hplr->GetGUID() : ObjectGuid::Empty;
 
     WorldPacket data(SMSG_BATTLEFIELD_PLAYER_POSITIONS);
 
@@ -391,7 +391,7 @@ void WorldSession::HandleBattlefieldListOpcode(WorldPacket& recvData)
     }
 
     WorldPacket data;
-    sBattlegroundMgr->BuildBattlegroundListPacket(&data, 0, _player, BattlegroundTypeId(bgTypeId));
+    sBattlegroundMgr->BuildBattlegroundListPacket(&data, ObjectGuid::Empty, _player, BattlegroundTypeId(bgTypeId));
     SendPacket(&data);
 }
 
@@ -567,7 +567,7 @@ void WorldSession::HandleBattleFieldPortOpcode(WorldPacket &recvData)
             ArenaTeam* at = sArenaTeamMgr->GetArenaTeamById(ginfo.Team);
             if (at)
             {
-                TC_LOG_DEBUG("bg.battleground", "UPDATING memberLost's personal arena rating for %u by opponents rating: %u, because he has left queue!", GUID_LOPART(_player->GetGUID()), ginfo.OpponentsTeamRating);
+                TC_LOG_DEBUG("bg.battleground", "UPDATING memberLost's personal arena rating for %s by opponents rating: %u, because he has left queue!", _player->GetGUID().ToString().c_str(), ginfo.OpponentsTeamRating);
                 at->MemberLost(_player, ginfo.OpponentsMatchmakerRating);
                 at->SaveToDB();
             }
@@ -772,7 +772,7 @@ void WorldSession::HandleBattlemasterJoinArena(WorldPacket& recvData)
 
 void WorldSession::HandleReportPvPAFK(WorldPacket& recvData)
 {
-    uint64 playerGuid;
+    ObjectGuid playerGuid;
     recvData >> playerGuid;
     Player* reportedPlayer = ObjectAccessor::FindPlayer(playerGuid);
 
diff --git a/src/server/game/Handlers/BattlefieldHandler.cpp b/src/server/game/Handlers/BattlefieldHandler.cpp
index 632cf83cd8f..f68c6ddd38d 100644
--- a/src/server/game/Handlers/BattlefieldHandler.cpp
+++ b/src/server/game/Handlers/BattlefieldHandler.cpp
@@ -35,31 +35,29 @@
  * @param zoneId        The zone where the battle is (4197 for wg)
  * @param acceptTime    Time in second that the player have for accept
  */
-void WorldSession::SendBfInvitePlayerToWar(uint64 guid, uint32 zoneId, uint32 acceptTime)
+void WorldSession::SendBfInvitePlayerToWar(ObjectGuid guid, uint32 zoneId, uint32 acceptTime)
 {
-    ObjectGuid guidBytes = guid;
-
     WorldPacket data(SMSG_BATTLEFIELD_MGR_ENTRY_INVITE, 16);
 
-    data.WriteBit(guidBytes[5]);
-    data.WriteBit(guidBytes[3]);
-    data.WriteBit(guidBytes[7]);
-    data.WriteBit(guidBytes[2]);
-    data.WriteBit(guidBytes[6]);
-    data.WriteBit(guidBytes[4]);
-    data.WriteBit(guidBytes[1]);
-    data.WriteBit(guidBytes[0]);
+    data.WriteBit(guid[5]);
+    data.WriteBit(guid[3]);
+    data.WriteBit(guid[7]);
+    data.WriteBit(guid[2]);
+    data.WriteBit(guid[6]);
+    data.WriteBit(guid[4]);
+    data.WriteBit(guid[1]);
+    data.WriteBit(guid[0]);
 
-    data.WriteByteSeq(guidBytes[6]);
+    data.WriteByteSeq(guid[6]);
     data << uint32(zoneId);         // Zone Id
-    data.WriteByteSeq(guidBytes[1]);
-    data.WriteByteSeq(guidBytes[3]);
-    data.WriteByteSeq(guidBytes[4]);
-    data.WriteByteSeq(guidBytes[2]);
-    data.WriteByteSeq(guidBytes[0]);
+    data.WriteByteSeq(guid[1]);
+    data.WriteByteSeq(guid[3]);
+    data.WriteByteSeq(guid[4]);
+    data.WriteByteSeq(guid[2]);
+    data.WriteByteSeq(guid[0]);
     data << uint32(time(NULL) + acceptTime); // Invite lasts until
-    data.WriteByteSeq(guidBytes[7]);
-    data.WriteByteSeq(guidBytes[5]);
+    data.WriteByteSeq(guid[7]);
+    data.WriteByteSeq(guid[5]);
     SendPacket(&data);
 }
 
@@ -70,39 +68,37 @@ void WorldSession::SendBfInvitePlayerToWar(uint64 guid, uint32 zoneId, uint32 ac
  *
  * @param guid           The guid of Bf
  */
-void WorldSession::SendBfInvitePlayerToQueue(uint64 guid)
+void WorldSession::SendBfInvitePlayerToQueue(ObjectGuid guid)
 {
-    ObjectGuid guidBytes = guid;
-
     WorldPacket data(SMSG_BATTLEFIELD_MGR_QUEUE_INVITE, 5);
 
     data.WriteBit(1);               // unk
     data.WriteBit(0);               // Has Warmup
     data.WriteBit(1);               // unk
-    data.WriteBit(guidBytes[0]);
+    data.WriteBit(guid[0]);
     data.WriteBit(1);               // unk
-    data.WriteBit(guidBytes[2]);
-    data.WriteBit(guidBytes[6]);
-    data.WriteBit(guidBytes[3]);
+    data.WriteBit(guid[2]);
+    data.WriteBit(guid[6]);
+    data.WriteBit(guid[3]);
     data.WriteBit(1);               // unk
     data.WriteBit(0);               // unk
-    data.WriteBit(guidBytes[1]);
-    data.WriteBit(guidBytes[5]);
-    data.WriteBit(guidBytes[4]);
+    data.WriteBit(guid[1]);
+    data.WriteBit(guid[5]);
+    data.WriteBit(guid[4]);
     data.WriteBit(1);               // unk
-    data.WriteBit(guidBytes[7]);
+    data.WriteBit(guid[7]);
 
     data.FlushBits();
 
-    data.WriteByteSeq(guidBytes[2]);
-    data.WriteByteSeq(guidBytes[3]);
-    data.WriteByteSeq(guidBytes[6]);
+    data.WriteByteSeq(guid[2]);
+    data.WriteByteSeq(guid[3]);
+    data.WriteByteSeq(guid[6]);
     data << uint8(1);               // Warmup
-    data.WriteByteSeq(guidBytes[5]);
-    data.WriteByteSeq(guidBytes[0]);
-    data.WriteByteSeq(guidBytes[4]);
-    data.WriteByteSeq(guidBytes[1]);
-    data.WriteByteSeq(guidBytes[7]);
+    data.WriteByteSeq(guid[5]);
+    data.WriteByteSeq(guid[0]);
+    data.WriteByteSeq(guid[4]);
+    data.WriteByteSeq(guid[1]);
+    data.WriteByteSeq(guid[7]);
     SendPacket(&data);
 }
 
@@ -116,27 +112,26 @@ void WorldSession::SendBfInvitePlayerToQueue(uint64 guid)
  * @param canQueue      if able to queue
  * @param full          on log in is full
  */
-void WorldSession::SendBfQueueInviteResponse(uint64 guid, uint32 zoneId, bool canQueue, bool full)
+void WorldSession::SendBfQueueInviteResponse(ObjectGuid guid, uint32 zoneId, bool canQueue, bool full)
 {
     const bool hasSecondGuid = false;
     const bool warmup = true;
-    ObjectGuid guidBytes = guid;
 
     WorldPacket data(SMSG_BATTLEFIELD_MGR_QUEUE_REQUEST_RESPONSE, 16);
 
-    data.WriteBit(guidBytes[1]);
-    data.WriteBit(guidBytes[6]);
-    data.WriteBit(guidBytes[5]);
-    data.WriteBit(guidBytes[7]);
+    data.WriteBit(guid[1]);
+    data.WriteBit(guid[6]);
+    data.WriteBit(guid[5]);
+    data.WriteBit(guid[7]);
     data.WriteBit(full);  // Logging In, VERIFYME
-    data.WriteBit(guidBytes[0]);
+    data.WriteBit(guid[0]);
     data.WriteBit(!hasSecondGuid);
-    data.WriteBit(guidBytes[4]);
+    data.WriteBit(guid[4]);
 
     // if (hasSecondGuid) 7 3 0 4 2 6 1 5
 
-    data.WriteBit(guidBytes[3]);
-    data.WriteBit(guidBytes[2]);
+    data.WriteBit(guid[3]);
+    data.WriteBit(guid[2]);
 
     // if (hasSecondGuid) 2 5 3 0 4 6 1 7
 
@@ -144,17 +139,17 @@ void WorldSession::SendBfQueueInviteResponse(uint64 guid, uint32 zoneId, bool ca
 
     data << uint8(canQueue);  // Accepted
 
-    data.WriteByteSeq(guidBytes[1]);
-    data.WriteByteSeq(guidBytes[3]);
-    data.WriteByteSeq(guidBytes[6]);
-    data.WriteByteSeq(guidBytes[7]);
-    data.WriteByteSeq(guidBytes[0]);
+    data.WriteByteSeq(guid[1]);
+    data.WriteByteSeq(guid[3]);
+    data.WriteByteSeq(guid[6]);
+    data.WriteByteSeq(guid[7]);
+    data.WriteByteSeq(guid[0]);
 
     data << uint8(warmup);
 
-    data.WriteByteSeq(guidBytes[2]);
-    data.WriteByteSeq(guidBytes[4]);
-    data.WriteByteSeq(guidBytes[5]);
+    data.WriteByteSeq(guid[2]);
+    data.WriteByteSeq(guid[4]);
+    data.WriteByteSeq(guid[5]);
 
     data << uint32(zoneId);
 
@@ -168,35 +163,34 @@ void WorldSession::SendBfQueueInviteResponse(uint64 guid, uint32 zoneId, bool ca
  *
  * @param guid           The guid of Bf
  */
-void WorldSession::SendBfEntered(uint64 guid)
+void WorldSession::SendBfEntered(ObjectGuid guid)
 {
     uint8 isAFK = _player->isAFK() ? 1 : 0;
-    ObjectGuid guidBytes = guid;
 
     WorldPacket data(SMSG_BATTLEFIELD_MGR_ENTERED, 11);
 
     data.WriteBit(0);               // unk
     data.WriteBit(isAFK);           // Clear AFK
-    data.WriteBit(guidBytes[1]);
-    data.WriteBit(guidBytes[4]);
-    data.WriteBit(guidBytes[5]);
-    data.WriteBit(guidBytes[0]);
-    data.WriteBit(guidBytes[3]);
+    data.WriteBit(guid[1]);
+    data.WriteBit(guid[4]);
+    data.WriteBit(guid[5]);
+    data.WriteBit(guid[0]);
+    data.WriteBit(guid[3]);
     data.WriteBit(0);               // unk
-    data.WriteBit(guidBytes[6]);
-    data.WriteBit(guidBytes[7]);
-    data.WriteBit(guidBytes[2]);
+    data.WriteBit(guid[6]);
+    data.WriteBit(guid[7]);
+    data.WriteBit(guid[2]);
 
     data.FlushBits();
 
-    data.WriteByteSeq(guidBytes[5]);
-    data.WriteByteSeq(guidBytes[3]);
-    data.WriteByteSeq(guidBytes[0]);
-    data.WriteByteSeq(guidBytes[4]);
-    data.WriteByteSeq(guidBytes[1]);
-    data.WriteByteSeq(guidBytes[7]);
-    data.WriteByteSeq(guidBytes[2]);
-    data.WriteByteSeq(guidBytes[6]);
+    data.WriteByteSeq(guid[5]);
+    data.WriteByteSeq(guid[3]);
+    data.WriteByteSeq(guid[0]);
+    data.WriteByteSeq(guid[4]);
+    data.WriteByteSeq(guid[1]);
+    data.WriteByteSeq(guid[7]);
+    data.WriteByteSeq(guid[2]);
+    data.WriteByteSeq(guid[6]);
 
     SendPacket(&data);
 }
@@ -209,34 +203,32 @@ void WorldSession::SendBfEntered(uint64 guid)
  * @param guid          The guid of Bf
  * @param reason        Reason why player left battlefield
  */
-void WorldSession::SendBfLeaveMessage(uint64 guid, BFLeaveReason reason /*= BF_LEAVE_REASON_EXITED*/)
+void WorldSession::SendBfLeaveMessage(ObjectGuid guid, BFLeaveReason reason /*= BF_LEAVE_REASON_EXITED*/)
 {
-    ObjectGuid guidBytes = guid;
-
     WorldPacket data(SMSG_BATTLEFIELD_MGR_EJECTED, 11);
 
-    data.WriteBit(guidBytes[2]);
-    data.WriteBit(guidBytes[5]);
-    data.WriteBit(guidBytes[1]);
-    data.WriteBit(guidBytes[0]);
-    data.WriteBit(guidBytes[3]);
-    data.WriteBit(guidBytes[6]);
+    data.WriteBit(guid[2]);
+    data.WriteBit(guid[5]);
+    data.WriteBit(guid[1]);
+    data.WriteBit(guid[0]);
+    data.WriteBit(guid[3]);
+    data.WriteBit(guid[6]);
     data.WriteBit(0);               // Relocated
-    data.WriteBit(guidBytes[7]);
-    data.WriteBit(guidBytes[4]);
+    data.WriteBit(guid[7]);
+    data.WriteBit(guid[4]);
 
     data.FlushBits();
 
     data << uint8(2);               // BattleStatus
-    data.WriteByteSeq(guidBytes[1]);
-    data.WriteByteSeq(guidBytes[7]);
-    data.WriteByteSeq(guidBytes[4]);
-    data.WriteByteSeq(guidBytes[2]);
-    data.WriteByteSeq(guidBytes[3]);
+    data.WriteByteSeq(guid[1]);
+    data.WriteByteSeq(guid[7]);
+    data.WriteByteSeq(guid[4]);
+    data.WriteByteSeq(guid[2]);
+    data.WriteByteSeq(guid[3]);
     data << uint8(reason);          // Reason
-    data.WriteByteSeq(guidBytes[6]);
-    data.WriteByteSeq(guidBytes[0]);
-    data.WriteByteSeq(guidBytes[5]);
+    data.WriteByteSeq(guid[6]);
+    data.WriteByteSeq(guid[0]);
+    data.WriteByteSeq(guid[5]);
 
     SendPacket(&data);
 }
@@ -270,7 +262,7 @@ void WorldSession::HandleBfQueueInviteResponse(WorldPacket& recvData)
     recvData.ReadByteSeq(guid[0]);
     recvData.ReadByteSeq(guid[5]);
 
-    TC_LOG_ERROR("misc", "HandleQueueInviteResponse: GUID: " UI64FMTD ", accepted: %u", uint64(guid), accepted);
+    TC_LOG_ERROR("misc", "HandleQueueInviteResponse: %s, accepted: %u", guid.ToString().c_str(), accepted);
 
     Battlefield* bf = sBattlefieldMgr->GetBattlefieldByGUID(guid);
     if (!bf)
diff --git a/src/server/game/Handlers/CalendarHandler.cpp b/src/server/game/Handlers/CalendarHandler.cpp
index a7de4491a85..954b4483f62 100644
--- a/src/server/game/Handlers/CalendarHandler.cpp
+++ b/src/server/game/Handlers/CalendarHandler.cpp
@@ -50,8 +50,8 @@ Copied events should probably have a new owner
 
 void WorldSession::HandleCalendarGetCalendar(WorldPacket& /*recvData*/)
 {
-    uint64 guid = _player->GetGUID();
-    TC_LOG_DEBUG("network", "CMSG_CALENDAR_GET_CALENDAR [" UI64FMTD "]", guid);
+    ObjectGuid guid = _player->GetGUID();
+    TC_LOG_DEBUG("network", "CMSG_CALENDAR_GET_CALENDAR [%s]", guid.ToString().c_str());
 
     time_t currTime = time(NULL);
 
@@ -69,12 +69,12 @@ void WorldSession::HandleCalendarGetCalendar(WorldPacket& /*recvData*/)
         if (CalendarEvent* calendarEvent = sCalendarMgr->GetEvent((*itr)->GetEventId()))
         {
             data << uint8(calendarEvent->IsGuildEvent());
-            data.appendPackGUID(calendarEvent->GetCreatorGUID());
+            data << calendarEvent->GetCreatorGUID().WriteAsPacked();
         }
         else
         {
             data << uint8(0);
-            data.appendPackGUID((*itr)->GetSenderGUID());
+            data << (*itr)->GetSenderGUID().WriteAsPacked();
         }
     }
 
@@ -184,8 +184,7 @@ void WorldSession::HandleCalendarGetEvent(WorldPacket& recvData)
     uint64 eventId;
     recvData >> eventId;
 
-    TC_LOG_DEBUG("network", "CMSG_CALENDAR_GET_EVENT. Player ["
-        UI64FMTD "] Event [" UI64FMTD "]", _player->GetGUID(), eventId);
+    TC_LOG_DEBUG("network", "CMSG_CALENDAR_GET_EVENT. Player [%s] Event [" UI64FMTD "]", _player->GetGUID().ToString().c_str(), eventId);
 
     if (CalendarEvent* calendarEvent = sCalendarMgr->GetEvent(eventId))
         sCalendarMgr->SendCalendarEvent(_player->GetGUID(), *calendarEvent, CALENDAR_SENDTYPE_GET);
@@ -195,7 +194,7 @@ void WorldSession::HandleCalendarGetEvent(WorldPacket& recvData)
 
 void WorldSession::HandleCalendarGuildFilter(WorldPacket& recvData)
 {
-    TC_LOG_DEBUG("network", "CMSG_CALENDAR_GUILD_FILTER [" UI64FMTD "]", _player->GetGUID());
+    TC_LOG_DEBUG("network", "CMSG_CALENDAR_GUILD_FILTER [%s]", _player->GetGUID().ToString().c_str());
 
     uint32 minLevel;
     uint32 maxLevel;
@@ -211,7 +210,7 @@ void WorldSession::HandleCalendarGuildFilter(WorldPacket& recvData)
 
 void WorldSession::HandleCalendarArenaTeam(WorldPacket& recvData)
 {
-    TC_LOG_DEBUG("network", "CMSG_CALENDAR_ARENA_TEAM [" UI64FMTD "]", _player->GetGUID());
+    TC_LOG_DEBUG("network", "CMSG_CALENDAR_ARENA_TEAM [%s]", _player->GetGUID().ToString().c_str());
 
     uint32 arenaTeamId;
     recvData >> arenaTeamId;
@@ -222,7 +221,7 @@ void WorldSession::HandleCalendarArenaTeam(WorldPacket& recvData)
 
 void WorldSession::HandleCalendarAddEvent(WorldPacket& recvData)
 {
-    uint64 guid = _player->GetGUID();
+    ObjectGuid guid = _player->GetGUID();
 
     std::string title;
     std::string description;
@@ -257,7 +256,7 @@ void WorldSession::HandleCalendarAddEvent(WorldPacket& recvData)
     if (calendarEvent->IsGuildAnnouncement())
     {
         // 946684800 is 01/01/2000 00:00:00 - default response time
-        CalendarInvite invite(0, calendarEvent->GetEventId(), 0, guid, 946684800, CALENDAR_STATUS_NOT_SIGNED_UP, CALENDAR_RANK_PLAYER, "");
+        CalendarInvite invite(0, calendarEvent->GetEventId(), ObjectGuid::Empty, guid, 946684800, CALENDAR_STATUS_NOT_SIGNED_UP, CALENDAR_RANK_PLAYER, "");
         // WARNING: By passing pointer to a local variable, the underlying method(s) must NOT perform any kind
         // of storage of the pointer as it will lead to memory corruption
         sCalendarMgr->AddInvite(calendarEvent, &invite);
@@ -268,11 +267,10 @@ void WorldSession::HandleCalendarAddEvent(WorldPacket& recvData)
         const uint32 MaxPlayerInvites = 100;
 
         uint32 inviteCount;
-        uint64 invitee[MaxPlayerInvites];
+        ObjectGuid invitee[MaxPlayerInvites];
         uint8 status[MaxPlayerInvites];
         uint8 rank[MaxPlayerInvites];
 
-        memset(invitee, 0, sizeof(invitee));
         memset(status, 0, sizeof(status));
         memset(rank, 0, sizeof(rank));
 
@@ -282,7 +280,7 @@ void WorldSession::HandleCalendarAddEvent(WorldPacket& recvData)
 
             for (uint32 i = 0; i < inviteCount && i < MaxPlayerInvites; ++i)
             {
-                recvData.readPackGUID(invitee[i]);
+                recvData >> invitee[i].ReadAsPacked();
                 recvData >> status[i] >> rank[i];
             }
         }
@@ -313,7 +311,7 @@ void WorldSession::HandleCalendarAddEvent(WorldPacket& recvData)
 
 void WorldSession::HandleCalendarUpdateEvent(WorldPacket& recvData)
 {
-    uint64 guid = _player->GetGUID();
+    ObjectGuid guid = _player->GetGUID();
     time_t oldEventTime;
 
     uint64 eventId;
@@ -341,10 +339,10 @@ void WorldSession::HandleCalendarUpdateEvent(WorldPacket& recvData)
         return;
     }
 
-    TC_LOG_DEBUG("network", "CMSG_CALENDAR_UPDATE_EVENT [" UI64FMTD "] EventId [" UI64FMTD
+    TC_LOG_DEBUG("network", "CMSG_CALENDAR_UPDATE_EVENT [%s] EventId [" UI64FMTD
         "], InviteId [" UI64FMTD "] Title %s, Description %s, type %u "
         "Repeatable %u, MaxInvites %u, Dungeon ID %d, Time %u "
-        "Time2 %u, Flags %u", guid, eventId, inviteId, title.c_str(),
+        "Time2 %u, Flags %u", guid.ToString().c_str(), eventId, inviteId, title.c_str(),
         description.c_str(), type, repetitionType, maxInvites, dungeonId,
         eventPackedTime, timeZoneTime, flags);
 
@@ -369,7 +367,7 @@ void WorldSession::HandleCalendarUpdateEvent(WorldPacket& recvData)
 
 void WorldSession::HandleCalendarRemoveEvent(WorldPacket& recvData)
 {
-    uint64 guid = _player->GetGUID();
+    ObjectGuid guid = _player->GetGUID();
     uint64 eventId;
 
     recvData >> eventId;
@@ -380,15 +378,15 @@ void WorldSession::HandleCalendarRemoveEvent(WorldPacket& recvData)
 
 void WorldSession::HandleCalendarCopyEvent(WorldPacket& recvData)
 {
-    uint64 guid = _player->GetGUID();
+    ObjectGuid guid = _player->GetGUID();
     uint64 eventId;
     uint64 inviteId;
     uint32 eventTime;
 
     recvData >> eventId >> inviteId;
     recvData.ReadPackedTime(eventTime);
-    TC_LOG_DEBUG("network", "CMSG_CALENDAR_COPY_EVENT [" UI64FMTD "], EventId [" UI64FMTD
-        "] inviteId [" UI64FMTD "] Time: %u", guid, eventId, inviteId, eventTime);
+    TC_LOG_DEBUG("network", "CMSG_CALENDAR_COPY_EVENT [%s], EventId [" UI64FMTD
+        "] inviteId [" UI64FMTD "] Time: %u", guid.ToString().c_str(), eventId, inviteId, eventTime);
 
     // prevent events in the past
     // To Do: properly handle timezones and remove the "- time_t(86400L)" hack
@@ -424,7 +422,7 @@ void WorldSession::HandleCalendarEventInvite(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "CMSG_CALENDAR_EVENT_INVITE");
 
-    uint64 playerGuid = _player->GetGUID();
+    ObjectGuid playerGuid = _player->GetGUID();
 
     uint64 eventId;
     uint64 inviteId;
@@ -432,7 +430,7 @@ void WorldSession::HandleCalendarEventInvite(WorldPacket& recvData)
     bool isPreInvite;
     bool isGuildEvent;
 
-    uint64 inviteeGuid = 0;
+    ObjectGuid inviteeGuid;
     uint32 inviteeTeam = 0;
     uint32 inviteeGuildId = 0;
 
@@ -453,7 +451,7 @@ void WorldSession::HandleCalendarEventInvite(WorldPacket& recvData)
         if (PreparedQueryResult result = CharacterDatabase.Query(stmt))
         {
             Field* fields = result->Fetch();
-            inviteeGuid = MAKE_NEW_GUID(fields[0].GetUInt32(), 0, HIGHGUID_PLAYER);
+            inviteeGuid = ObjectGuid(HIGHGUID_PLAYER, fields[0].GetUInt32());
             inviteeTeam = Player::TeamForRace(fields[1].GetUInt8());
             inviteeGuildId = Player::GetGuildIdFromDB(inviteeGuid);
         }
@@ -471,7 +469,7 @@ void WorldSession::HandleCalendarEventInvite(WorldPacket& recvData)
         return;
     }
 
-    if (QueryResult result = CharacterDatabase.PQuery("SELECT flags FROM character_social WHERE guid = " UI64FMTD " AND friend = " UI64FMTD, inviteeGuid, playerGuid))
+    if (QueryResult result = CharacterDatabase.PQuery("SELECT flags FROM character_social WHERE guid = %u AND friend = %u", inviteeGuid.GetCounter(), playerGuid.GetCounter()))
     {
         Field* fields = result->Fetch();
         if (fields[0].GetUInt8() & SOCIAL_FLAG_IGNORED)
@@ -515,12 +513,12 @@ void WorldSession::HandleCalendarEventInvite(WorldPacket& recvData)
 
 void WorldSession::HandleCalendarEventSignup(WorldPacket& recvData)
 {
-    uint64 guid = _player->GetGUID();
+    ObjectGuid guid = _player->GetGUID();
     uint64 eventId;
     bool tentative;
 
     recvData >> eventId >> tentative;
-    TC_LOG_DEBUG("network", "CMSG_CALENDAR_EVENT_SIGNUP [" UI64FMTD "] EventId [" UI64FMTD "] Tentative %u", guid, eventId, tentative);
+    TC_LOG_DEBUG("network", "CMSG_CALENDAR_EVENT_SIGNUP [%s] EventId [" UI64FMTD "] Tentative %u", guid.ToString().c_str(), eventId, tentative);
 
     if (CalendarEvent* calendarEvent = sCalendarMgr->GetEvent(eventId))
     {
@@ -541,14 +539,14 @@ void WorldSession::HandleCalendarEventSignup(WorldPacket& recvData)
 
 void WorldSession::HandleCalendarEventRsvp(WorldPacket& recvData)
 {
-    uint64 guid = _player->GetGUID();
+    ObjectGuid guid = _player->GetGUID();
     uint64 eventId;
     uint64 inviteId;
     uint32 status;
 
     recvData >> eventId >> inviteId >> status;
-    TC_LOG_DEBUG("network", "CMSG_CALENDAR_EVENT_RSVP [" UI64FMTD "] EventId ["
-        UI64FMTD "], InviteId [" UI64FMTD "], status %u", guid, eventId,
+    TC_LOG_DEBUG("network", "CMSG_CALENDAR_EVENT_RSVP [%s] EventId ["
+        UI64FMTD "], InviteId [" UI64FMTD "], status %u", guid.ToString().c_str(), eventId,
         inviteId, status);
 
     if (CalendarEvent* calendarEvent = sCalendarMgr->GetEvent(eventId))
@@ -578,19 +576,18 @@ void WorldSession::HandleCalendarEventRsvp(WorldPacket& recvData)
 
 void WorldSession::HandleCalendarEventRemoveInvite(WorldPacket& recvData)
 {
-    uint64 guid = _player->GetGUID();
-    uint64 invitee;
+    ObjectGuid guid = _player->GetGUID();
+    ObjectGuid invitee;
     uint64 eventId;
     uint64 ownerInviteId; // isn't it sender's inviteId?
     uint64 inviteId;
 
-    recvData.readPackGUID(invitee);
+    recvData >> invitee.ReadAsPacked();
     recvData >> inviteId >> ownerInviteId >> eventId;
 
-    TC_LOG_DEBUG("network", "CMSG_CALENDAR_EVENT_REMOVE_INVITE ["
-        UI64FMTD "] EventId [" UI64FMTD "], ownerInviteId ["
-        UI64FMTD "], Invitee ([" UI64FMTD "] id: [" UI64FMTD "])",
-        guid, eventId, ownerInviteId, invitee, inviteId);
+    TC_LOG_DEBUG("network", "CMSG_CALENDAR_EVENT_REMOVE_INVITE [%s] EventId [" UI64FMTD
+        "], ownerInviteId [" UI64FMTD "], Invitee ([%s] id: [" UI64FMTD "])",
+        guid.ToString().c_str(), eventId, ownerInviteId, invitee.ToString().c_str(), inviteId);
 
     if (CalendarEvent* calendarEvent = sCalendarMgr->GetEvent(eventId))
     {
@@ -608,18 +605,18 @@ void WorldSession::HandleCalendarEventRemoveInvite(WorldPacket& recvData)
 
 void WorldSession::HandleCalendarEventStatus(WorldPacket& recvData)
 {
-    uint64 guid = _player->GetGUID();
-    uint64 invitee;
+    ObjectGuid guid = _player->GetGUID();
+    ObjectGuid invitee;
     uint64 eventId;
     uint64 inviteId;
     uint64 ownerInviteId; // isn't it sender's inviteId?
     uint8 status;
 
-    recvData.readPackGUID(invitee);
+    recvData >> invitee.ReadAsPacked();
     recvData >> eventId >> inviteId >> ownerInviteId >> status;
-    TC_LOG_DEBUG("network", "CMSG_CALENDAR_EVENT_STATUS [" UI64FMTD"] EventId ["
-        UI64FMTD "] ownerInviteId [" UI64FMTD "], Invitee ([" UI64FMTD "] id: ["
-        UI64FMTD "], status %u", guid, eventId, ownerInviteId, invitee, inviteId, status);
+    TC_LOG_DEBUG("network", "CMSG_CALENDAR_EVENT_STATUS [%s] EventId ["
+        UI64FMTD "] ownerInviteId [" UI64FMTD "], Invitee ([%s] id: ["
+        UI64FMTD "], status %u", guid.ToString().c_str(), eventId, ownerInviteId, invitee.ToString().c_str(), inviteId, status);
 
     if (CalendarEvent* calendarEvent = sCalendarMgr->GetEvent(eventId))
     {
@@ -642,18 +639,18 @@ void WorldSession::HandleCalendarEventStatus(WorldPacket& recvData)
 
 void WorldSession::HandleCalendarEventModeratorStatus(WorldPacket& recvData)
 {
-    uint64 guid = _player->GetGUID();
-    uint64 invitee;
+    ObjectGuid guid = _player->GetGUID();
+    ObjectGuid invitee;
     uint64 eventId;
     uint64 inviteId;
     uint64 ownerInviteId; // isn't it sender's inviteId?
     uint8 rank;
 
-    recvData.readPackGUID(invitee);
-    recvData >> eventId >>  inviteId >> ownerInviteId >> rank;
-    TC_LOG_DEBUG("network", "CMSG_CALENDAR_EVENT_MODERATOR_STATUS [" UI64FMTD "] EventId ["
-        UI64FMTD "] ownerInviteId [" UI64FMTD "], Invitee ([" UI64FMTD "] id: ["
-        UI64FMTD "], rank %u", guid, eventId, ownerInviteId, invitee, inviteId, rank);
+    recvData >> invitee.ReadAsPacked();
+    recvData >> eventId >> inviteId >> ownerInviteId >> rank;
+    TC_LOG_DEBUG("network", "CMSG_CALENDAR_EVENT_MODERATOR_STATUS [%s] EventId ["
+        UI64FMTD "] ownerInviteId [" UI64FMTD "], Invitee ([%s] id: ["
+        UI64FMTD "], rank %u", guid.ToString().c_str(), eventId, ownerInviteId, invitee.ToString().c_str(), inviteId, rank);
 
     if (CalendarEvent* calendarEvent = sCalendarMgr->GetEvent(eventId))
     {
@@ -672,25 +669,24 @@ void WorldSession::HandleCalendarEventModeratorStatus(WorldPacket& recvData)
 
 void WorldSession::HandleCalendarComplain(WorldPacket& recvData)
 {
-    uint64 guid = _player->GetGUID();
+    ObjectGuid guid = _player->GetGUID();
     uint64 eventId;
-    uint64 complainGUID;
+    ObjectGuid complainGUID;
     uint64 inviteId;
 
     recvData >> complainGUID >> eventId >> inviteId;
-    TC_LOG_DEBUG("network", "CMSG_CALENDAR_COMPLAIN [" UI64FMTD "] EventId ["
-        UI64FMTD "] guid [" UI64FMTD "] InviteId [" UI64FMTD "]", guid, eventId, complainGUID, inviteId);
+    TC_LOG_DEBUG("network", "CMSG_CALENDAR_COMPLAIN [%s] EventId ["
+        UI64FMTD "] guid [%s] InviteId [" UI64FMTD "]", guid.ToString().c_str(), eventId, complainGUID.ToString().c_str(), inviteId);
 
     // what to do with complains?
 }
 
 void WorldSession::HandleCalendarGetNumPending(WorldPacket& /*recvData*/)
 {
-    uint64 guid = _player->GetGUID();
+    ObjectGuid guid = _player->GetGUID();
     uint32 pending = sCalendarMgr->GetPlayerNumPending(guid);
 
-    TC_LOG_DEBUG("network", "CMSG_CALENDAR_GET_NUM_PENDING: [" UI64FMTD
-        "] Pending: %u", guid, pending);
+    TC_LOG_DEBUG("network", "CMSG_CALENDAR_GET_NUM_PENDING: [%s] Pending: %u", guid.ToString().c_str(), pending);
 
     WorldPacket data(SMSG_CALENDAR_SEND_NUM_PENDING, 4);
     data << uint32(pending);
@@ -741,9 +737,9 @@ void WorldSession::SendCalendarRaidLockoutUpdated(InstanceSave const* save)
     if (!save)
         return;
 
-    uint64 guid = _player->GetGUID();
-    TC_LOG_DEBUG("network", "SMSG_CALENDAR_RAID_LOCKOUT_UPDATED [" UI64FMTD
-        "] Map: %u, Difficulty %u", guid, save->GetMapId(), save->GetDifficulty());
+    ObjectGuid guid = _player->GetGUID();
+    TC_LOG_DEBUG("network", "SMSG_CALENDAR_RAID_LOCKOUT_UPDATED [%s] Map: %u, Difficulty %u",
+        guid.ToString().c_str(), save->GetMapId(), save->GetDifficulty());
 
     time_t currTime = time(NULL);
 
diff --git a/src/server/game/Handlers/CharacterHandler.cpp b/src/server/game/Handlers/CharacterHandler.cpp
index f917b3970c8..feefaec83ab 100644
--- a/src/server/game/Handlers/CharacterHandler.cpp
+++ b/src/server/game/Handlers/CharacterHandler.cpp
@@ -52,11 +52,11 @@ class LoginQueryHolder : public SQLQueryHolder
 {
     private:
         uint32 m_accountId;
-        uint64 m_guid;
+        ObjectGuid m_guid;
     public:
-        LoginQueryHolder(uint32 accountId, uint64 guid)
+        LoginQueryHolder(uint32 accountId, ObjectGuid guid)
             : m_accountId(accountId), m_guid(guid) { }
-        uint64 GetGuid() const { return m_guid; }
+        ObjectGuid GetGuid() const { return m_guid; }
         uint32 GetAccountId() const { return m_accountId; }
         bool Initialize();
 };
@@ -66,7 +66,7 @@ bool LoginQueryHolder::Initialize()
     SetSize(MAX_PLAYER_LOGIN_QUERY);
 
     bool res = true;
-    uint32 lowGuid = GUID_LOPART(m_guid);
+    uint32 lowGuid = m_guid.GetCounter();
 
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_CHARACTER);
     stmt->setUInt32(0, lowGuid);
@@ -239,18 +239,18 @@ void WorldSession::HandleCharEnum(PreparedQueryResult result)
 
         do
         {
-            uint32 guidLow = (*result)[0].GetUInt32();
+            ObjectGuid guid(HIGHGUID_PLAYER, (*result)[0].GetUInt32());
 
-            TC_LOG_INFO("network", "Loading char guid %u from account %u.", guidLow, GetAccountId());
+            TC_LOG_INFO("network", "Loading char guid %s from account %u.", guid.ToString().c_str(), GetAccountId());
 
             Player::BuildEnumData(result, &dataBuffer, &bitBuffer);
 
             // Do not allow banned characters to log in
             if (!(*result)[20].GetUInt32())
-                _legitCharacters.insert(guidLow);
+                _legitCharacters.insert(guid);
 
-            if (!sWorld->HasCharacterNameData(guidLow)) // This can happen if characters are inserted into the database manually. Core hasn't loaded name data yet.
-                sWorld->AddCharacterNameData(guidLow, (*result)[1].GetString(), (*result)[4].GetUInt8(), (*result)[2].GetUInt8(), (*result)[3].GetUInt8(), (*result)[7].GetUInt8());
+            if (!sWorld->HasCharacterNameData(guid)) // This can happen if characters are inserted into the database manually. Core hasn't loaded name data yet.
+                sWorld->AddCharacterNameData(guid, (*result)[1].GetString(), (*result)[4].GetUInt8(), (*result)[2].GetUInt8(), (*result)[3].GetUInt8(), (*result)[7].GetUInt8());
         } while (result->NextRow());
     }
     else
@@ -707,7 +707,7 @@ void WorldSession::HandleCharCreateCallback(PreparedQueryResult result, Characte
             std::string IP_str = GetRemoteAddress();
             TC_LOG_INFO("entities.player.character", "Account: %d (IP: %s) Create Character:[%s] (GUID: %u)", GetAccountId(), IP_str.c_str(), createInfo->Name.c_str(), newChar.GetGUIDLow());
             sScriptMgr->OnPlayerCreate(&newChar);
-            sWorld->AddCharacterNameData(newChar.GetGUIDLow(), newChar.GetName(), newChar.getGender(), newChar.getRace(), newChar.getClass(), newChar.getLevel());
+            sWorld->AddCharacterNameData(newChar.GetGUID(), newChar.GetName(), newChar.getGender(), newChar.getRace(), newChar.getClass(), newChar.getLevel());
 
             newChar.CleanupsBeforeDelete();
             delete createInfo;
@@ -719,7 +719,7 @@ void WorldSession::HandleCharCreateCallback(PreparedQueryResult result, Characte
 
 void WorldSession::HandleCharDeleteOpcode(WorldPacket& recvData)
 {
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
     // Initiating
     uint32 initAccountId = GetAccountId();
@@ -756,7 +756,7 @@ void WorldSession::HandleCharDeleteOpcode(WorldPacket& recvData)
     }
 
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_CHARACTER_DATA_BY_GUID);
-    stmt->setUInt32(0, GUID_LOPART(guid));
+    stmt->setUInt32(0, guid.GetCounter());
 
     if (PreparedQueryResult result = CharacterDatabase.Query(stmt))
     {
@@ -774,7 +774,7 @@ void WorldSession::HandleCharDeleteOpcode(WorldPacket& recvData)
     }
 
     std::string IP_str = GetRemoteAddress();
-    TC_LOG_INFO("entities.player.character", "Account: %d, IP: %s deleted character: %s, GUID: %u, Level: %u", accountId, IP_str.c_str(), name.c_str(), GUID_LOPART(guid), level);
+    TC_LOG_INFO("entities.player.character", "Account: %d, IP: %s deleted character: %s, %s, Level: %u", accountId, IP_str.c_str(), name.c_str(), guid.ToString().c_str(), level);
 
     // To prevent hook failure, place hook before removing reference from DB
     sScriptMgr->OnPlayerDelete(guid, initAccountId); // To prevent race conditioning, but as it also makes sense, we hand the accountId over for successful delete.
@@ -783,8 +783,8 @@ void WorldSession::HandleCharDeleteOpcode(WorldPacket& recvData)
     if (sLog->ShouldLog("entities.player.dump", LOG_LEVEL_INFO)) // optimize GetPlayerDump call
     {
         std::string dump;
-        if (PlayerDumpWriter().GetDump(GUID_LOPART(guid), dump))
-            sLog->outCharDump(dump.c_str(), accountId, GUID_LOPART(guid), name.c_str());
+        if (PlayerDumpWriter().GetDump(guid.GetCounter(), dump))
+            sLog->outCharDump(dump.c_str(), accountId, guid.GetCounter(), name.c_str());
     }
 
     sGuildFinderMgr->RemoveAllMembershipRequestsFromPlayer(guid);
@@ -827,11 +827,11 @@ void WorldSession::HandlePlayerLoginOpcode(WorldPacket& recvData)
     recvData.ReadByteSeq(playerGuid[1]);
     recvData.ReadByteSeq(playerGuid[4]);
 
-    TC_LOG_DEBUG("network", "Character (Guid: %u) logging in", GUID_LOPART(playerGuid));
+    TC_LOG_DEBUG("network", "Character %s logging in", playerGuid.ToString().c_str());
 
-    if (!IsLegitCharacterForAccount(GUID_LOPART(playerGuid)))
+    if (!IsLegitCharacterForAccount(playerGuid))
     {
-        TC_LOG_ERROR("network", "Account (%u) can't login with that character (%u).", GetAccountId(), GUID_LOPART(playerGuid));
+        TC_LOG_ERROR("network", "Account (%u) can't login with that character (%s).", GetAccountId(), playerGuid.ToString().c_str());
         KickPlayer();
         return;
     }
@@ -844,7 +844,7 @@ void WorldSession::HandlePlayerLoginOpcode(WorldPacket& recvData)
         return;
     }
 
-    _charLoginCallback = CharacterDatabase.DelayQueryHolder((SQLQueryHolder*)holder);
+    _charLoginCallback = CharacterDatabase.DelayQueryHolder(holder);
 }
 
 void WorldSession::HandleLoadScreenOpcode(WorldPacket& recvPacket)
@@ -860,14 +860,14 @@ void WorldSession::HandleLoadScreenOpcode(WorldPacket& recvPacket)
 
 void WorldSession::HandlePlayerLogin(LoginQueryHolder* holder)
 {
-    uint64 playerGuid = holder->GetGuid();
+    ObjectGuid playerGuid = holder->GetGuid();
 
     Player* pCurrChar = new Player(this);
      // for send server info and strings (config)
     ChatHandler chH = ChatHandler(pCurrChar->GetSession());
 
     // "GetAccountId() == db stored account id" checked in LoadFromDB (prevent login not own character using cheating tools)
-    if (!pCurrChar->LoadFromDB(GUID_LOPART(playerGuid), holder))
+    if (!pCurrChar->LoadFromDB(playerGuid, holder))
     {
         SetPlayer(NULL);
         KickPlayer();                                       // disconnect client, player no set to session and it will not deleted or saved at kick
@@ -1224,7 +1224,7 @@ void WorldSession::HandleShowingCloakOpcode(WorldPacket& recvData)
 
 void WorldSession::HandleCharRenameOpcode(WorldPacket& recvData)
 {
-    uint64 guid;
+    ObjectGuid guid;
     std::string newName;
 
     recvData >> guid;
@@ -1265,7 +1265,7 @@ void WorldSession::HandleCharRenameOpcode(WorldPacket& recvData)
 
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_FREE_NAME);
 
-    stmt->setUInt32(0, GUID_LOPART(guid));
+    stmt->setUInt32(0, guid.GetCounter());
     stmt->setUInt32(1, GetAccountId());
     stmt->setUInt16(2, AT_LOGIN_RENAME);
     stmt->setUInt16(3, AT_LOGIN_RENAME);
@@ -1289,7 +1289,7 @@ void WorldSession::HandleChangePlayerNameOpcodeCallBack(PreparedQueryResult resu
     uint32 guidLow      = fields[0].GetUInt32();
     std::string oldName = fields[1].GetString();
 
-    uint64 guid = MAKE_NEW_GUID(guidLow, 0, HIGHGUID_PLAYER);
+    ObjectGuid guid = ObjectGuid(HIGHGUID_PLAYER, guidLow);
 
     // Update name and at_login flag in the db
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_UPD_NAME);
@@ -1307,7 +1307,7 @@ void WorldSession::HandleChangePlayerNameOpcodeCallBack(PreparedQueryResult resu
 
     CharacterDatabase.Execute(stmt);
 
-    TC_LOG_INFO("entities.player.character", "Account: %d (IP: %s) Character:[%s] (guid:%u) Changed name to: %s", GetAccountId(), GetRemoteAddress().c_str(), oldName.c_str(), guidLow, newName.c_str());
+    TC_LOG_INFO("entities.player.character", "Account: %d (IP: %s) Character:[%s] (%s) Changed name to: %s", GetAccountId(), GetRemoteAddress().c_str(), oldName.c_str(), guid.ToString().c_str(), newName.c_str());
 
     WorldPacket data(SMSG_CHAR_RENAME, 1+8+(newName.size()+1));
     data << uint8(RESPONSE_SUCCESS);
@@ -1315,12 +1315,12 @@ void WorldSession::HandleChangePlayerNameOpcodeCallBack(PreparedQueryResult resu
     data << newName;
     SendPacket(&data);
 
-    sWorld->UpdateCharacterNameData(guidLow, newName);
+    sWorld->UpdateCharacterNameData(guid, newName);
 }
 
 void WorldSession::HandleSetPlayerDeclinedNames(WorldPacket& recvData)
 {
-    uint64 guid;
+    ObjectGuid guid;
 
     recvData >> guid;
 
@@ -1390,11 +1390,11 @@ void WorldSession::HandleSetPlayerDeclinedNames(WorldPacket& recvData)
     SQLTransaction trans = CharacterDatabase.BeginTransaction();
 
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_CHAR_DECLINED_NAME);
-    stmt->setUInt32(0, GUID_LOPART(guid));
+    stmt->setUInt32(0, guid.GetCounter());
     trans->Append(stmt);
 
     stmt = CharacterDatabase.GetPreparedStatement(CHAR_INS_CHAR_DECLINED_NAME);
-    stmt->setUInt32(0, GUID_LOPART(guid));
+    stmt->setUInt32(0, guid.GetCounter());
 
     for (uint8 i = 0; i < 5; i++)
         stmt->setString(i+1, declinedname.name[i]);
@@ -1505,14 +1505,14 @@ void WorldSession::HandleRemoveGlyph(WorldPacket& recvData)
 
 void WorldSession::HandleCharCustomize(WorldPacket& recvData)
 {
-    uint64 guid;
+    ObjectGuid guid;
     std::string newName;
 
     recvData >> guid;
-    if (!IsLegitCharacterForAccount(GUID_LOPART(guid)))
+    if (!IsLegitCharacterForAccount(guid))
     {
-        TC_LOG_ERROR("network", "Account %u, IP: %s tried to customise character %u, but it does not belong to their account!",
-            GetAccountId(), GetRemoteAddress().c_str(), GUID_LOPART(guid));
+        TC_LOG_ERROR("network", "Account %u, IP: %s tried to customise %s, but it does not belong to their account!",
+            GetAccountId(), GetRemoteAddress().c_str(), guid.ToString().c_str());
         recvData.rfinish();
         KickPlayer();
         return;
@@ -1524,7 +1524,7 @@ void WorldSession::HandleCharCustomize(WorldPacket& recvData)
     recvData >> gender >> skin >> hairColor >> hairStyle >> facialHair >> face;
 
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_CHARACTER_AT_LOGIN);
-    stmt->setUInt32(0, GUID_LOPART(guid));
+    stmt->setUInt32(0, guid.GetCounter());
     // TODO: Make async with callback
     PreparedQueryResult result = CharacterDatabase.Query(stmt);
 
@@ -1575,7 +1575,7 @@ void WorldSession::HandleCharCustomize(WorldPacket& recvData)
     }
 
     // character with this name already exist
-    if (uint64 newguid = sObjectMgr->GetPlayerGUIDByName(newName))
+    if (ObjectGuid newguid = sObjectMgr->GetPlayerGUIDByName(newName))
     {
         if (newguid != guid)
         {
@@ -1587,13 +1587,13 @@ void WorldSession::HandleCharCustomize(WorldPacket& recvData)
     }
 
     stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_CHARACTER_NAME);
-    stmt->setUInt32(0, GUID_LOPART(guid));
+    stmt->setUInt32(0, guid.GetCounter());
     result = CharacterDatabase.Query(stmt);
 
     if (result)
     {
         std::string oldname = result->Fetch()[0].GetString();
-        TC_LOG_INFO("entities.player.character", "Account: %d (IP: %s), Character[%s] (guid:%u) Customized to: %s", GetAccountId(), GetRemoteAddress().c_str(), oldname.c_str(), GUID_LOPART(guid), newName.c_str());
+        TC_LOG_INFO("entities.player.character", "Account: %d (IP: %s), Character[%s] (%s) Customized to: %s", GetAccountId(), GetRemoteAddress().c_str(), oldname.c_str(), guid.ToString().c_str(), newName.c_str());
     }
 
     Player::Customize(guid, gender, skin, face, hairStyle, hairColor, facialHair);
@@ -1602,17 +1602,17 @@ void WorldSession::HandleCharCustomize(WorldPacket& recvData)
 
     stmt->setString(0, newName);
     stmt->setUInt16(1, uint16(AT_LOGIN_CUSTOMIZE));
-    stmt->setUInt32(2, GUID_LOPART(guid));
+    stmt->setUInt32(2, guid.GetCounter());
 
     CharacterDatabase.Execute(stmt);
 
     stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_DECLINED_NAME);
 
-    stmt->setUInt32(0, GUID_LOPART(guid));
+    stmt->setUInt32(0, guid.GetCounter());
 
     CharacterDatabase.Execute(stmt);
 
-    sWorld->UpdateCharacterNameData(GUID_LOPART(guid), newName, gender);
+    sWorld->UpdateCharacterNameData(guid, newName, gender);
 
     WorldPacket data(SMSG_CHAR_CUSTOMIZE, 1+8+(newName.size()+1)+6);
     data << uint8(RESPONSE_SUCCESS);
@@ -1654,11 +1654,11 @@ void WorldSession::HandleEquipmentSetSave(WorldPacket& recvData)
 
     for (uint32 i = 0; i < EQUIPMENT_SLOT_END; ++i)
     {
-        uint64 itemGuid;
-        recvData.readPackGUID(itemGuid);
+        ObjectGuid itemGuid;
+        recvData >> itemGuid.ReadAsPacked();
 
         // equipment manager sends "1" (as raw GUID) for slots set to "ignore" (don't touch slot at equip set)
-        if (itemGuid == 1)
+        if (itemGuid.GetRawValue() == 1)
         {
             // ignored slots saved as bit mask because we have no free special values for Items[i]
             eqSet.IgnoreMask |= 1 << i;
@@ -1673,7 +1673,7 @@ void WorldSession::HandleEquipmentSetSave(WorldPacket& recvData)
         if (item && item->GetGUID() != itemGuid)             // cheating check 2
             return;
 
-        eqSet.Items[i] = GUID_LOPART(itemGuid);
+        eqSet.Items[i] = itemGuid.GetCounter();
     }
 
     _player->SetEquipmentSet(index, eqSet);
@@ -1695,16 +1695,16 @@ void WorldSession::HandleEquipmentSetUse(WorldPacket& recvData)
 
     for (uint32 i = 0; i < EQUIPMENT_SLOT_END; ++i)
     {
-        uint64 itemGuid;
-        recvData.readPackGUID(itemGuid);
+        ObjectGuid itemGuid;
+        recvData >> itemGuid.ReadAsPacked();
 
         uint8 srcbag, srcslot;
         recvData >> srcbag >> srcslot;
 
-        TC_LOG_DEBUG("entities.player.items", "Item " UI64FMTD ": srcbag %u, srcslot %u", itemGuid, srcbag, srcslot);
+        TC_LOG_DEBUG("entities.player.items", "%s: srcbag %u, srcslot %u", itemGuid.ToString().c_str(), srcbag, srcslot);
 
         // check if item slot is set to "ignored" (raw value == 1), must not be unequipped then
-        if (itemGuid == 1)
+        if (itemGuid.GetRawValue() == 1)
             continue;
 
         // Only equip weapons in combat
@@ -1747,15 +1747,15 @@ void WorldSession::HandleEquipmentSetUse(WorldPacket& recvData)
 
 void WorldSession::HandleCharFactionOrRaceChange(WorldPacket& recvData)
 {
-    uint64 guid;
+    ObjectGuid guid;
     std::string newname;
     uint8 gender, skin, face, hairStyle, hairColor, facialHair, race;
     recvData >> guid;
 
-    if (!IsLegitCharacterForAccount(GUID_LOPART(guid)))
+    if (!IsLegitCharacterForAccount(guid))
     {
-        TC_LOG_ERROR("network", "Account %u, IP: %s tried to factionchange character %u, but it does not belong to their account!",
-            GetAccountId(), GetRemoteAddress().c_str(), GUID_LOPART(guid));
+        TC_LOG_ERROR("network", "Account %u, IP: %s tried to factionchange character %s, but it does not belong to their account!",
+            GetAccountId(), GetRemoteAddress().c_str(), guid.ToString().c_str());
         recvData.rfinish();
         KickPlayer();
         return;
@@ -1764,10 +1764,10 @@ void WorldSession::HandleCharFactionOrRaceChange(WorldPacket& recvData)
     recvData >> newname;
     recvData >> gender >> skin >> hairColor >> hairStyle >> facialHair >> face >> race;
 
-    uint32 lowGuid = GUID_LOPART(guid);
+    uint32 lowGuid = guid.GetCounter();
 
     // get the players old (at this moment current) race
-    CharacterNameData const* nameData = sWorld->GetCharacterNameData(lowGuid);
+    CharacterNameData const* nameData = sWorld->GetCharacterNameData(guid);
     if (!nameData)
     {
         WorldPacket data(SMSG_CHAR_FACTION_CHANGE, 1);
@@ -1854,7 +1854,7 @@ void WorldSession::HandleCharFactionOrRaceChange(WorldPacket& recvData)
     }
 
     // character with this name already exist
-    if (uint64 newguid = sObjectMgr->GetPlayerGUIDByName(newname))
+    if (ObjectGuid newguid = sObjectMgr->GetPlayerGUIDByName(newname))
     {
         if (newguid != guid)
         {
@@ -1883,7 +1883,7 @@ void WorldSession::HandleCharFactionOrRaceChange(WorldPacket& recvData)
     stmt->setUInt32(0, lowGuid);
     trans->Append(stmt);
 
-    sWorld->UpdateCharacterNameData(GUID_LOPART(guid), newname, gender, race);
+    sWorld->UpdateCharacterNameData(guid, newname, gender, race);
 
     if (oldRace != race)
     {
@@ -2029,7 +2029,7 @@ void WorldSession::HandleCharFactionOrRaceChange(WorldPacket& recvData)
                 PreparedQueryResult result = CharacterDatabase.Query(stmt);
                 if (result)
                     if (Guild* guild = sGuildMgr->GetGuildById((result->Fetch()[0]).GetUInt32()))
-                        guild->DeleteMember(MAKE_NEW_GUID(lowGuid, 0, HIGHGUID_PLAYER), false, false, true);
+                        guild->DeleteMember(guid, false, false, true);
 
                 Player::LeaveAllArenaTeams(guid);
             }
@@ -2060,7 +2060,7 @@ void WorldSession::HandleCharFactionOrRaceChange(WorldPacket& recvData)
                 stmt->setFloat (3, -8867.68f);
                 stmt->setFloat (4, 673.373f);
                 stmt->setFloat (5, 97.9034f);
-                Player::SavePositionInDB(0, -8867.68f, 673.373f, 97.9034f, 0.0f, 1519, lowGuid);
+                Player::SavePositionInDB(0, -8867.68f, 673.373f, 97.9034f, 0.0f, 1519, guid);
             }
             else
             {
@@ -2069,7 +2069,7 @@ void WorldSession::HandleCharFactionOrRaceChange(WorldPacket& recvData)
                 stmt->setFloat (3, 1633.33f);
                 stmt->setFloat (4, -4439.11f);
                 stmt->setFloat (5, 15.7588f);
-                Player::SavePositionInDB(1, 1633.33f, -4439.11f, 15.7588f, 0.0f, 1637, lowGuid);
+                Player::SavePositionInDB(1, 1633.33f, -4439.11f, 15.7588f, 0.0f, 1637, guid);
             }
             trans->Append(stmt);
 
@@ -2100,13 +2100,13 @@ void WorldSession::HandleCharFactionOrRaceChange(WorldPacket& recvData)
                 stmt = CharacterDatabase.GetPreparedStatement(CHAR_UPD_CHAR_INVENTORY_FACTION_CHANGE);
                 stmt->setUInt32(0, (team == TEAM_ALLIANCE ? item_alliance : item_horde));
                 stmt->setUInt32(1, (team == TEAM_ALLIANCE ? item_horde : item_alliance));
-                stmt->setUInt32(2, guid);
+                stmt->setUInt32(2, lowGuid);
                 trans->Append(stmt);
             }
 
             // Delete all current quests
             stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_CHAR_QUESTSTATUS);
-            stmt->setUInt32(0, GUID_LOPART(guid));
+            stmt->setUInt32(0, lowGuid);
             trans->Append(stmt);
 
             // Quest conversion
@@ -2330,7 +2330,7 @@ void WorldSession::HandleRandomizeCharNameOpcode(WorldPacket& recvData)
 
 void WorldSession::HandleReorderCharacters(WorldPacket& recvData)
 {
-    uint32 charactersCount = recvData.ReadBits(10);
+    uint32 charactersCount = std::min<uint32>(recvData.ReadBits(10), sWorld->getIntConfig(CONFIG_CHARACTERS_PER_REALM));
 
     std::vector<ObjectGuid> guids(charactersCount);
     uint8 position;
@@ -2364,7 +2364,7 @@ void WorldSession::HandleReorderCharacters(WorldPacket& recvData)
 
         PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_UPD_CHAR_LIST_SLOT);
         stmt->setUInt8(0, position);
-        stmt->setUInt32(1, GUID_LOPART(guids[i]));
+        stmt->setUInt32(1, guids[i].GetCounter());
         trans->Append(stmt);
     }
 
diff --git a/src/server/game/Handlers/ChatHandler.cpp b/src/server/game/Handlers/ChatHandler.cpp
index 2119aa47d2d..a65c03b25a1 100644
--- a/src/server/game/Handlers/ChatHandler.cpp
+++ b/src/server/game/Handlers/ChatHandler.cpp
@@ -725,7 +725,7 @@ void WorldSession::HandleTextEmoteOpcode(WorldPacket& recvData)
     }
 
     uint32 text_emote, emoteNum;
-    uint64 guid;
+    ObjectGuid guid;
 
     recvData >> text_emote;
     recvData >> emoteNum;
diff --git a/src/server/game/Handlers/CombatHandler.cpp b/src/server/game/Handlers/CombatHandler.cpp
index e4d749d9ab0..152d6994949 100644
--- a/src/server/game/Handlers/CombatHandler.cpp
+++ b/src/server/game/Handlers/CombatHandler.cpp
@@ -30,10 +30,10 @@
 
 void WorldSession::HandleAttackSwingOpcode(WorldPacket& recvData)
 {
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
 
-    TC_LOG_DEBUG("network", "WORLD: Recvd CMSG_ATTACKSWING Message guidlow:%u guidhigh:%u", GUID_LOPART(guid), GUID_HIPART(guid));
+    TC_LOG_DEBUG("network", "WORLD: Recvd CMSG_ATTACKSWING Message %s", guid.ToString().c_str());
 
     Unit* pEnemy = ObjectAccessor::GetUnit(*_player, guid);
 
@@ -92,9 +92,9 @@ void WorldSession::HandleSetSheathedOpcode(WorldPacket& recvData)
 void WorldSession::SendAttackStop(Unit const* enemy)
 {
     WorldPacket data(SMSG_ATTACKSTOP, (8+8+4));             // we guess size
-    data.append(GetPlayer()->GetPackGUID());
+    data << GetPlayer()->GetPackGUID();
     if (enemy)
-        data.append(enemy->GetPackGUID());
+        data << enemy->GetPackGUID();
     else
         data << uint8(0);
 
diff --git a/src/server/game/Handlers/DuelHandler.cpp b/src/server/game/Handlers/DuelHandler.cpp
index b07df587fbf..f93fc7e8ce0 100644
--- a/src/server/game/Handlers/DuelHandler.cpp
+++ b/src/server/game/Handlers/DuelHandler.cpp
@@ -26,7 +26,7 @@
 
 void WorldSession::HandleDuelAcceptedOpcode(WorldPacket& recvPacket)
 {
-    uint64 guid;
+    ObjectGuid guid;
     Player* player;
     Player* plTarget;
 
@@ -35,7 +35,7 @@ void WorldSession::HandleDuelAcceptedOpcode(WorldPacket& recvPacket)
     if (!GetPlayer()->duel)                                  // ignore accept from duel-sender
         return;
 
-    player       = GetPlayer();
+    player = GetPlayer();
     plTarget = player->duel->opponent;
 
     if (player == player->duel->initiator || !plTarget || player == plTarget || player->duel->startTime != 0 || plTarget->duel->startTime != 0)
@@ -56,7 +56,7 @@ void WorldSession::HandleDuelAcceptedOpcode(WorldPacket& recvPacket)
 void WorldSession::HandleDuelCancelledOpcode(WorldPacket& recvPacket)
 {
     TC_LOG_DEBUG("network", "WORLD: Received CMSG_DUEL_CANCELLED");
-    uint64 guid;
+    ObjectGuid guid;
     recvPacket >> guid;
 
     // no duel requested
diff --git a/src/server/game/Handlers/GroupHandler.cpp b/src/server/game/Handlers/GroupHandler.cpp
index 0e30f17d71f..149d309f995 100644
--- a/src/server/game/Handlers/GroupHandler.cpp
+++ b/src/server/game/Handlers/GroupHandler.cpp
@@ -403,7 +403,7 @@ void WorldSession::HandleGroupUninviteGuidOpcode(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: Received CMSG_GROUP_UNINVITE_GUID");
 
-    uint64 guid;
+    ObjectGuid guid;
     std::string reason;
     recvData >> guid;
     recvData >> reason;
@@ -478,7 +478,7 @@ void WorldSession::HandleGroupUninviteOpcode(WorldPacket& recvData)
     if (!grp)
         return;
 
-    if (uint64 guid = grp->GetMemberGUID(membername))
+    if (ObjectGuid guid = grp->GetMemberGUID(membername))
     {
         Player::RemoveFromGroup(grp, guid, GROUP_REMOVEMETHOD_KICK, GetPlayer()->GetGUID());
         return;
@@ -497,7 +497,7 @@ void WorldSession::HandleGroupSetLeaderOpcode(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: Received CMSG_GROUP_SET_LEADER");
 
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
 
     Player* player = ObjectAccessor::FindPlayer(guid);
@@ -620,7 +620,7 @@ void WorldSession::HandleLootMethodOpcode(WorldPacket& recvData)
     TC_LOG_DEBUG("network", "WORLD: Received CMSG_LOOT_METHOD");
 
     uint32 lootMethod;
-    uint64 lootMaster;
+    ObjectGuid lootMaster;
     uint32 lootThreshold;
     recvData >> lootMethod >> lootMaster >> lootThreshold;
 
@@ -651,7 +651,7 @@ void WorldSession::HandleLootMethodOpcode(WorldPacket& recvData)
 
 void WorldSession::HandleLootRoll(WorldPacket& recvData)
 {
-    uint64 guid;
+    ObjectGuid guid;
     uint32 itemSlot;
     uint8  rollType;
     recvData >> guid;                  // guid of the item rolled
@@ -750,10 +750,10 @@ void WorldSession::HandleRaidTargetUpdateOpcode(WorldPacket& recvData)
         if (group->isRaidGroup() && !group->IsLeader(GetPlayer()->GetGUID()) && !group->IsAssistant(GetPlayer()->GetGUID()))
             return;
 
-        uint64 guid;
+        ObjectGuid guid;
         recvData >> guid;
 
-        if (IS_PLAYER_GUID(guid))
+        if (guid.IsPlayer())
         {
             Player* target = ObjectAccessor::FindPlayer(guid);
 
@@ -824,7 +824,7 @@ void WorldSession::HandleGroupChangeSubGroupOpcode(WorldPacket& recvData)
     if (groupNr >= MAX_RAID_SUBGROUPS)
         return;
 
-    uint64 senderGuid = GetPlayer()->GetGUID();
+    ObjectGuid senderGuid = GetPlayer()->GetGUID();
     if (!group->IsLeader(senderGuid) && !group->IsAssistant(senderGuid))
         return;
 
@@ -832,7 +832,7 @@ void WorldSession::HandleGroupChangeSubGroupOpcode(WorldPacket& recvData)
         return;
 
     Player* movedPlayer = sObjectAccessor->FindPlayerByName(name);
-    uint64 guid;
+    ObjectGuid guid;
 
     if (movedPlayer)
         guid = movedPlayer->GetGUID();
@@ -866,7 +866,7 @@ void WorldSession::HandleGroupAssistantLeaderOpcode(WorldPacket& recvData)
     if (!group->IsLeader(GetPlayer()->GetGUID()))
         return;
 
-    uint64 guid;
+    ObjectGuid guid;
     bool apply;
     recvData >> guid;
     recvData >> apply;
@@ -882,13 +882,13 @@ void WorldSession::HandlePartyAssignmentOpcode(WorldPacket& recvData)
     if (!group)
         return;
 
-    uint64 senderGuid = GetPlayer()->GetGUID();
+    ObjectGuid senderGuid = GetPlayer()->GetGUID();
     if (!group->IsLeader(senderGuid) && !group->IsAssistant(senderGuid))
         return;
 
     uint8 assignment;
     bool apply;
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> assignment >> apply;
     recvData >> guid;
 
@@ -971,7 +971,7 @@ void WorldSession::BuildPartyMemberStatsChangedPacket(Player* player, WorldPacke
         mask |= (GROUP_UPDATE_FLAG_PET_CUR_POWER | GROUP_UPDATE_FLAG_PET_MAX_POWER);
 
     data->Initialize(SMSG_PARTY_MEMBER_STATS, 80);          // average value
-    data->append(player->GetPackGUID());
+    *data << player->GetPackGUID();
     *data << uint32(mask);
 
     if (mask & GROUP_UPDATE_FLAG_STATUS)
@@ -1197,15 +1197,15 @@ void WorldSession::BuildPartyMemberStatsChangedPacket(Player* player, WorldPacke
 void WorldSession::HandleRequestPartyMemberStatsOpcode(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: Received CMSG_REQUEST_PARTY_MEMBER_STATS");
-    uint64 guid;
-    recvData >> guid;
+    ObjectGuid Guid;
+    recvData >> Guid;
 
-    Player* player = HashMapHolder<Player>::Find(guid);
+    Player* player = HashMapHolder<Player>::Find(Guid);
     if (!player)
     {
         WorldPacket data(SMSG_PARTY_MEMBER_STATS_FULL, 3+4+2);
         data << uint8(0);                                   // only for SMSG_PARTY_MEMBER_STATS_FULL, probably arena/bg related
-        data.appendPackGUID(guid);
+        data << Guid.WriteAsPacked();
         data << uint32(GROUP_UPDATE_FLAG_STATUS);
         data << uint16(MEMBER_STATUS_OFFLINE);
         SendPacket(&data);
@@ -1218,7 +1218,7 @@ void WorldSession::HandleRequestPartyMemberStatsOpcode(WorldPacket& recvData)
 
     WorldPacket data(SMSG_PARTY_MEMBER_STATS_FULL, 4+2+2+2+1+2*6+8+1+8);
     data << uint8(0);                                       // only for SMSG_PARTY_MEMBER_STATS_FULL, probably arena/bg related
-    data.append(player->GetPackGUID());
+    data << player->GetPackGUID();
 
     uint32 updateFlags = GROUP_UPDATE_FLAG_STATUS | GROUP_UPDATE_FLAG_CUR_HP | GROUP_UPDATE_FLAG_MAX_HP
                       | GROUP_UPDATE_FLAG_CUR_POWER | GROUP_UPDATE_FLAG_MAX_POWER | GROUP_UPDATE_FLAG_LEVEL
diff --git a/src/server/game/Handlers/GuildFinderHandler.cpp b/src/server/game/Handlers/GuildFinderHandler.cpp
index f4baafd1d6f..2dea43dcad1 100644
--- a/src/server/game/Handlers/GuildFinderHandler.cpp
+++ b/src/server/game/Handlers/GuildFinderHandler.cpp
@@ -58,9 +58,9 @@ void WorldSession::HandleGuildFinderAddRecruit(WorldPacket& recvPacket)
     recvPacket.ReadByteSeq(guid[1]);
     recvPacket.ReadByteSeq(guid[3]);
 
-    uint32 guildLowGuid = GUID_LOPART(uint64(guid));
+    uint32 guildLowGuid = guid.GetCounter();
 
-    if (!IS_GUILD_GUID(guid))
+    if (!guid.IsGuild())
         return;
     if (!(classRoles & GUILDFINDER_ALL_ROLES) || classRoles > GUILDFINDER_ALL_ROLES)
         return;
@@ -69,7 +69,7 @@ void WorldSession::HandleGuildFinderAddRecruit(WorldPacket& recvPacket)
     if (!(guildInterests & ALL_INTERESTS) || guildInterests > ALL_INTERESTS)
         return;
 
-    MembershipRequest request = MembershipRequest(GetPlayer()->GetGUIDLow(), guildLowGuid, availability, classRoles, guildInterests, comment, time(NULL));
+    MembershipRequest request = MembershipRequest(GetPlayer()->GetGUID(), guildLowGuid, availability, classRoles, guildInterests, comment, time(NULL));
     sGuildFinderMgr->AddMembershipRequest(guildLowGuid, request);
 }
 
@@ -198,10 +198,10 @@ void WorldSession::HandleGuildFinderDeclineRecruit(WorldPacket& recvPacket)
     recvPacket.ReadByteSeq(playerGuid[0]);
     recvPacket.ReadByteSeq(playerGuid[6]);
 
-    if (!IS_PLAYER_GUID(playerGuid))
+    if (!playerGuid.IsPlayer())
         return;
 
-    sGuildFinderMgr->RemoveMembershipRequest(GUID_LOPART(playerGuid), GetPlayer()->GetGuildId());
+    sGuildFinderMgr->RemoveMembershipRequest(playerGuid.GetCounter(), GetPlayer()->GetGuildId());
 }
 
 void WorldSession::HandleGuildFinderGetApplications(WorldPacket& /*recvPacket*/)
@@ -287,7 +287,7 @@ void WorldSession::HandleGuildFinderGetRecruits(WorldPacket& recvPacket)
     for (std::vector<MembershipRequest>::const_iterator itr = recruitsList.begin(); itr != recruitsList.end(); ++itr)
     {
         MembershipRequest request = *itr;
-        ObjectGuid playerGuid(MAKE_NEW_GUID(request.GetPlayerGUID(), 0, HIGHGUID_PLAYER));
+        ObjectGuid playerGuid = request.GetPlayerGUID();
 
         data.WriteBits(request.GetComment().size(), 11);
         data.WriteBit(playerGuid[2]);
@@ -394,10 +394,10 @@ void WorldSession::HandleGuildFinderRemoveRecruit(WorldPacket& recvPacket)
     recvPacket.ReadByteSeq(guildGuid[2]);
     recvPacket.ReadByteSeq(guildGuid[7]);
 
-    if (!IS_GUILD_GUID(guildGuid))
+    if (!guildGuid.IsGuild())
         return;
 
-    sGuildFinderMgr->RemoveMembershipRequest(GetPlayer()->GetGUIDLow(), GUID_LOPART(guildGuid));
+    sGuildFinderMgr->RemoveMembershipRequest(GetPlayer()->GetGUIDLow(), guildGuid.GetCounter());
 }
 
 // Sent any time a guild master sets an option in the interface and when listing / unlisting his guild
diff --git a/src/server/game/Handlers/GuildHandler.cpp b/src/server/game/Handlers/GuildHandler.cpp
index 3bc88e1eeb8..3762e9aa90e 100644
--- a/src/server/game/Handlers/GuildHandler.cpp
+++ b/src/server/game/Handlers/GuildHandler.cpp
@@ -30,11 +30,11 @@
 
 void WorldSession::HandleGuildQueryOpcode(WorldPacket& recvPacket)
 {
-    uint64 guildGuid, playerGuid;
+    ObjectGuid guildGuid, playerGuid;
     recvPacket >> guildGuid >> playerGuid;
 
-    TC_LOG_DEBUG("guild", "CMSG_GUILD_QUERY [%s]: Guild: %u Target: %u",
-        GetPlayerInfo().c_str(), GUID_LOPART(guildGuid), GUID_LOPART(playerGuid));
+    TC_LOG_DEBUG("guild", "CMSG_GUILD_QUERY [%s]: Guild: %s Target: %s",
+        GetPlayerInfo().c_str(), guildGuid.ToString().c_str(), playerGuid.ToString().c_str());
 
     if (Guild* guild = sGuildMgr->GetGuildByGuid(guildGuid))
         if (guild->IsMember(playerGuid))
@@ -74,7 +74,7 @@ void WorldSession::HandleGuildRemoveOpcode(WorldPacket& recvPacket)
     recvPacket.ReadByteSeq(playerGuid[3]);
     recvPacket.ReadByteSeq(playerGuid[0]);
 
-    TC_LOG_DEBUG("guild", "CMSG_GUILD_REMOVE [%s]: Target: %u", GetPlayerInfo().c_str(), GUID_LOPART(playerGuid));
+    TC_LOG_DEBUG("guild", "CMSG_GUILD_REMOVE [%s]: Target: %s", GetPlayerInfo().c_str(), playerGuid.ToString().c_str());
 
     if (Guild* guild = GetPlayer()->GetGuild())
         guild->HandleRemoveMember(this, playerGuid);
@@ -130,7 +130,7 @@ void WorldSession::HandleGuildPromoteOpcode(WorldPacket& recvPacket)
     recvPacket.ReadByteSeq(targetGuid[1]);
     recvPacket.ReadByteSeq(targetGuid[7]);
 
-    TC_LOG_DEBUG("guild", "CMSG_GUILD_PROMOTE [%s]: Target: %u", GetPlayerInfo().c_str(), GUID_LOPART(targetGuid));
+    TC_LOG_DEBUG("guild", "CMSG_GUILD_PROMOTE [%s]: Target: %s", GetPlayerInfo().c_str(), targetGuid.ToString().c_str());
 
     if (Guild* guild = GetPlayer()->GetGuild())
         guild->HandleUpdateMemberRank(this, targetGuid, false);
@@ -158,7 +158,7 @@ void WorldSession::HandleGuildDemoteOpcode(WorldPacket& recvPacket)
     recvPacket.ReadByteSeq(targetGuid[4]);
     recvPacket.ReadByteSeq(targetGuid[3]);
 
-    TC_LOG_DEBUG("guild", "CMSG_GUILD_DEMOTE [%s]: Target: %u", GetPlayerInfo().c_str(), GUID_LOPART(targetGuid));
+    TC_LOG_DEBUG("guild", "CMSG_GUILD_DEMOTE [%s]: Target: %s", GetPlayerInfo().c_str(), targetGuid.ToString().c_str());
 
     if (Guild* guild = GetPlayer()->GetGuild())
         guild->HandleUpdateMemberRank(this, targetGuid, true);
@@ -206,8 +206,8 @@ void WorldSession::HandleGuildAssignRankOpcode(WorldPacket& recvPacket)
     recvPacket.ReadByteSeq(targetGuid[6]);
     recvPacket.ReadByteSeq(setterGuid[7]);
 
-    TC_LOG_DEBUG("guild", "CMSG_GUILD_ASSIGN_MEMBER_RANK [%s]: Target: %u Rank: %u, Issuer: %u",
-        GetPlayerInfo().c_str(), GUID_LOPART(targetGuid), rankId, GUID_LOPART(setterGuid));
+    TC_LOG_DEBUG("guild", "CMSG_GUILD_ASSIGN_MEMBER_RANK [%s]: Target: %s Rank: %u, Issuer: %s",
+        GetPlayerInfo().c_str(), targetGuid.ToString().c_str(), rankId, setterGuid.ToString().c_str());
 
     if (Guild* guild = GetPlayer()->GetGuild())
         guild->HandleSetMemberRank(this, targetGuid, setterGuid, rankId);
@@ -264,8 +264,8 @@ void WorldSession::HandleGuildSetNoteOpcode(WorldPacket& recvPacket)
     std::string note = recvPacket.ReadString(noteLength);
     recvPacket.ReadByteSeq(playerGuid[2]);
 
-    TC_LOG_DEBUG("guild", "CMSG_GUILD_SET_NOTE [%s]: Target: %u, Note: %s, Public: %u",
-        GetPlayerInfo().c_str(), GUID_LOPART(playerGuid), note.c_str(), ispublic);
+    TC_LOG_DEBUG("guild", "CMSG_GUILD_SET_NOTE [%s]: Target: %s, Note: %s, Public: %u",
+        GetPlayerInfo().c_str(), playerGuid.ToString().c_str(), note.c_str(), ispublic);
 
     if (Guild* guild = GetPlayer()->GetGuild())
         guild->HandleSetMemberNote(this, note, playerGuid, ispublic);
@@ -293,8 +293,8 @@ void WorldSession::HandleGuildQueryRanksOpcode(WorldPacket& recvPacket)
     recvPacket.ReadByteSeq(guildGuid[6]);
     recvPacket.ReadByteSeq(guildGuid[2]);
 
-    TC_LOG_DEBUG("guild", "CMSG_GUILD_QUERY_RANKS [%s]: Guild: %u",
-        GetPlayerInfo().c_str(), GUID_LOPART(guildGuid));
+    TC_LOG_DEBUG("guild", "CMSG_GUILD_QUERY_RANKS [%s]: Guild: %s",
+        GetPlayerInfo().c_str(), guildGuid.ToString().c_str());
 
     if (Guild* guild = sGuildMgr->GetGuildByGuid(guildGuid))
         if (guild->IsMember(_player->GetGUID()))
@@ -339,15 +339,14 @@ void WorldSession::HandleGuildChangeInfoTextOpcode(WorldPacket& recvPacket)
 
 void WorldSession::HandleSaveGuildEmblemOpcode(WorldPacket& recvPacket)
 {
-    uint64 vendorGuid;
+    ObjectGuid vendorGuid;
     recvPacket >> vendorGuid;
 
     EmblemInfo emblemInfo;
     emblemInfo.ReadPacket(recvPacket);
 
-    TC_LOG_DEBUG("guild", "MSG_SAVE_GUILD_EMBLEM [%s]: Guid: [" UI64FMTD
-        "] Style: %d, Color: %d, BorderStyle: %d, BorderColor: %d, BackgroundColor: %d"
-        , GetPlayerInfo().c_str(), vendorGuid, emblemInfo.GetStyle()
+    TC_LOG_DEBUG("guild", "MSG_SAVE_GUILD_EMBLEM [%s]: Guid: [%s] Style: %d, Color: %d, BorderStyle: %d, BorderColor: %d, BackgroundColor: %d"
+        , GetPlayerInfo().c_str(), vendorGuid.ToString().c_str(), emblemInfo.GetStyle()
         , emblemInfo.GetColor(), emblemInfo.GetBorderStyle()
         , emblemInfo.GetBorderColor(), emblemInfo.GetBackgroundColor());
 
@@ -393,12 +392,12 @@ void WorldSession::HandleGuildPermissions(WorldPacket& /* recvPacket */)
 // Called when clicking on Guild bank gameobject
 void WorldSession::HandleGuildBankerActivate(WorldPacket& recvPacket)
 {
-    uint64 guid;
+    ObjectGuid guid;
     bool sendAllSlots;
     recvPacket >> guid >> sendAllSlots;
 
-    TC_LOG_DEBUG("guild", "CMSG_GUILD_BANKER_ACTIVATE [%s]: Go: [" UI64FMTD "] AllSlots: %u"
-        , GetPlayerInfo().c_str(), guid, sendAllSlots);
+    TC_LOG_DEBUG("guild", "CMSG_GUILD_BANKER_ACTIVATE [%s]: [%s] AllSlots: %u"
+        , GetPlayerInfo().c_str(), guid.ToString().c_str(), sendAllSlots);
 
     GameObject const* const go = GetPlayer()->GetGameObjectIfCanInteractWith(guid, GAMEOBJECT_TYPE_GUILD_BANK);
     if (!go)
@@ -417,14 +416,14 @@ void WorldSession::HandleGuildBankerActivate(WorldPacket& recvPacket)
 // Called when opening guild bank tab only (first one)
 void WorldSession::HandleGuildBankQueryTab(WorldPacket& recvPacket)
 {
-    uint64 guid;
+    ObjectGuid guid;
     uint8 tabId;
-    bool sendAllSlots;
+    bool full;
 
-    recvPacket >> guid >> tabId >> sendAllSlots;
+    recvPacket >> guid >> tabId >> full;
 
-    TC_LOG_DEBUG("guild", "CMSG_GUILD_BANK_QUERY_TAB [%s]: Go: [" UI64FMTD "], TabId: %u, AllSlots: %u"
-        , GetPlayerInfo().c_str(), guid, tabId, sendAllSlots);
+    TC_LOG_DEBUG("guild", "CMSG_GUILD_BANK_QUERY_TAB [%s]: %s, TabId: %u, ShowTabs: %u"
+        , GetPlayerInfo().c_str(), guid.ToString().c_str(), tabId, full);
 
     if (GetPlayer()->GetGameObjectIfCanInteractWith(guid, GAMEOBJECT_TYPE_GUILD_BANK))
         if (Guild* guild = GetPlayer()->GetGuild())
@@ -433,12 +432,12 @@ void WorldSession::HandleGuildBankQueryTab(WorldPacket& recvPacket)
 
 void WorldSession::HandleGuildBankDepositMoney(WorldPacket& recvPacket)
 {
-    uint64 guid;
+    ObjectGuid guid;
     uint64 money;
     recvPacket >> guid >> money;
 
-    TC_LOG_DEBUG("guild", "CMSG_GUILD_BANK_DEPOSIT_MONEY [%s]: Go: [" UI64FMTD "], money: " UI64FMTD,
-        GetPlayerInfo().c_str(), guid, money);
+    TC_LOG_DEBUG("guild", "CMSG_GUILD_BANK_DEPOSIT_MONEY [%s]: [%s], money: " UI64FMTD,
+        GetPlayerInfo().c_str(), guid.ToString().c_str(), money);
 
     if (GetPlayer()->GetGameObjectIfCanInteractWith(guid, GAMEOBJECT_TYPE_GUILD_BANK))
         if (money && GetPlayer()->HasEnoughMoney(money))
@@ -448,12 +447,12 @@ void WorldSession::HandleGuildBankDepositMoney(WorldPacket& recvPacket)
 
 void WorldSession::HandleGuildBankWithdrawMoney(WorldPacket& recvPacket)
 {
-    uint64 guid;
+    ObjectGuid guid;
     uint64 money;
     recvPacket >> guid >> money;
 
-    TC_LOG_DEBUG("guild", "CMSG_GUILD_BANK_WITHDRAW_MONEY [%s]: Go: [" UI64FMTD "], money: " UI64FMTD,
-        GetPlayerInfo().c_str(), guid, money);
+    TC_LOG_DEBUG("guild", "CMSG_GUILD_BANK_WITHDRAW_MONEY [%s]: [%s], money: " UI64FMTD,
+        GetPlayerInfo().c_str(), guid.ToString().c_str(), money);
 
     if (money && GetPlayer()->GetGameObjectIfCanInteractWith(guid, GAMEOBJECT_TYPE_GUILD_BANK))
         if (Guild* guild = GetPlayer()->GetGuild())
@@ -464,7 +463,7 @@ void WorldSession::HandleGuildBankSwapItems(WorldPacket& recvPacket)
 {
     TC_LOG_DEBUG("guild", "CMSG_GUILD_BANK_SWAP_ITEMS [%s]", GetPlayerInfo().c_str());
 
-    uint64 GoGuid;
+    ObjectGuid GoGuid;
     recvPacket >> GoGuid;
 
     if (!GetPlayer()->GetGameObjectIfCanInteractWith(GoGuid, GAMEOBJECT_TYPE_GUILD_BANK))
@@ -544,13 +543,13 @@ void WorldSession::HandleGuildBankSwapItems(WorldPacket& recvPacket)
 
 void WorldSession::HandleGuildBankBuyTab(WorldPacket& recvPacket)
 {
-    uint64 guid;
+    ObjectGuid guid;
     recvPacket >> guid;
 
     uint8 tabId;
     recvPacket >> tabId;
 
-    TC_LOG_DEBUG("guild", "CMSG_GUILD_BANK_BUY_TAB [%s]: Go: [" UI64FMTD "], TabId: %u", GetPlayerInfo().c_str(), guid, tabId);
+    TC_LOG_DEBUG("guild", "CMSG_GUILD_BANK_BUY_TAB [%s]: [%s[, TabId: %u", GetPlayerInfo().c_str(), guid.ToString().c_str(), tabId);
 
     if (!guid || GetPlayer()->GetGameObjectIfCanInteractWith(guid, GAMEOBJECT_TYPE_GUILD_BANK))
         if (Guild* guild = GetPlayer()->GetGuild())
@@ -559,14 +558,14 @@ void WorldSession::HandleGuildBankBuyTab(WorldPacket& recvPacket)
 
 void WorldSession::HandleGuildBankUpdateTab(WorldPacket& recvPacket)
 {
-    uint64 guid;
+    ObjectGuid guid;
     uint8 tabId;
     std::string name, icon;
 
     recvPacket >> guid >> tabId >> name >> icon;
 
-    TC_LOG_DEBUG("guild", "CMSG_GUILD_BANK_UPDATE_TAB [%s]: Go: [" UI64FMTD "], TabId: %u, Name: %s, Icon: %s"
-        , GetPlayerInfo().c_str(), guid, tabId, name.c_str(), icon.c_str());
+    TC_LOG_DEBUG("guild", "CMSG_GUILD_BANK_UPDATE_TAB [%s]: [%s], TabId: %u, Name: %s, Icon: %s"
+        , GetPlayerInfo().c_str(), guid.ToString().c_str(), tabId, name.c_str(), icon.c_str());
     if (!name.empty() && !icon.empty())
         if (GetPlayer()->GetGameObjectIfCanInteractWith(guid, GAMEOBJECT_TYPE_GUILD_BANK))
             if (Guild* guild = GetPlayer()->GetGuild())
@@ -633,7 +632,7 @@ void WorldSession::HandleGuildQueryXPOpcode(WorldPacket& recvPacket)
     recvPacket.ReadByteSeq(guildGuid[0]);
     recvPacket.ReadByteSeq(guildGuid[4]);
 
-    TC_LOG_DEBUG("guild", "CMSG_QUERY_GUILD_XP [%s]: Guild: %u", GetPlayerInfo().c_str(), GUID_LOPART(guildGuid));
+    TC_LOG_DEBUG("guild", "CMSG_QUERY_GUILD_XP [%s]: Guild: %s", GetPlayerInfo().c_str(), guildGuid.ToString().c_str());
 
     if (Guild* guild = sGuildMgr->GetGuildByGuid(guildGuid))
         if (guild->IsMember(_player->GetGUID()))
diff --git a/src/server/game/Handlers/ItemHandler.cpp b/src/server/game/Handlers/ItemHandler.cpp
index 355317856d5..eae9e37ebe8 100644
--- a/src/server/game/Handlers/ItemHandler.cpp
+++ b/src/server/game/Handlers/ItemHandler.cpp
@@ -89,13 +89,13 @@ void WorldSession::HandleSwapInvItemOpcode(WorldPacket& recvData)
 
     if (_player->IsBankPos(INVENTORY_SLOT_BAG_0, srcslot) && !CanUseBank())
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleSwapInvItemOpcode - Unit (GUID: %u) not found or you can't interact with him.", uint32(GUID_LOPART(m_currentBankerGUID)));
+        TC_LOG_DEBUG("network", "WORLD: HandleSwapInvItemOpcode - Unit (%s) not found or you can't interact with him.", m_currentBankerGUID.ToString().c_str());
         return;
     }
 
     if (_player->IsBankPos(INVENTORY_SLOT_BAG_0, dstslot) && !CanUseBank())
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleSwapInvItemOpcode - Unit (GUID: %u) not found or you can't interact with him.", uint32(GUID_LOPART(m_currentBankerGUID)));
+        TC_LOG_DEBUG("network", "WORLD: HandleSwapInvItemOpcode - Unit (%s) not found or you can't interact with him.", m_currentBankerGUID.ToString().c_str());
         return;
     }
 
@@ -107,7 +107,7 @@ void WorldSession::HandleSwapInvItemOpcode(WorldPacket& recvData)
 
 void WorldSession::HandleAutoEquipItemSlotOpcode(WorldPacket& recvData)
 {
-    uint64 itemguid;
+    ObjectGuid itemguid;
     uint8 dstslot;
     recvData >> itemguid >> dstslot;
 
@@ -153,13 +153,13 @@ void WorldSession::HandleSwapItem(WorldPacket& recvData)
 
     if (_player->IsBankPos(srcbag, srcslot) && !CanUseBank())
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleSwapItem - Unit (GUID: %u) not found or you can't interact with him.", uint32(GUID_LOPART(m_currentBankerGUID)));
+        TC_LOG_DEBUG("network", "WORLD: HandleSwapItem - Unit (%s) not found or you can't interact with him.", m_currentBankerGUID.ToString().c_str());
         return;
     }
 
     if (_player->IsBankPos(dstbag, dstslot) && !CanUseBank())
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleSwapItem - Unit (GUID: %u) not found or you can't interact with him.", uint32(GUID_LOPART(m_currentBankerGUID)));
+        TC_LOG_DEBUG("network", "WORLD: HandleSwapItem - Unit (%s) not found or you can't interact with him.", m_currentBankerGUID.ToString().c_str());
         return;
     }
 
@@ -336,7 +336,7 @@ void WorldSession::HandleReadItem(WorldPacket& recvData)
 void WorldSession::HandleSellItemOpcode(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: Received CMSG_SELL_ITEM");
-    uint64 vendorguid, itemguid;
+    ObjectGuid vendorguid, itemguid;
     uint32 count;
 
     recvData >> vendorguid >> itemguid >> count;
@@ -347,7 +347,7 @@ void WorldSession::HandleSellItemOpcode(WorldPacket& recvData)
     Creature* creature = GetPlayer()->GetNPCIfCanInteractWith(vendorguid, UNIT_NPC_FLAG_VENDOR);
     if (!creature)
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleSellItemOpcode - Unit (GUID: %u) not found or you can not interact with him.", uint32(GUID_LOPART(vendorguid)));
+        TC_LOG_DEBUG("network", "WORLD: HandleSellItemOpcode - %s not found or you can not interact with him.", vendorguid.ToString().c_str());
         _player->SendSellError(SELL_ERR_CANT_FIND_VENDOR, NULL, itemguid);
         return;
     }
@@ -448,7 +448,7 @@ void WorldSession::HandleSellItemOpcode(WorldPacket& recvData)
 void WorldSession::HandleBuybackItem(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: Received CMSG_BUYBACK_ITEM");
-    uint64 vendorguid;
+    ObjectGuid vendorguid;
     uint32 slot;
 
     recvData >> vendorguid >> slot;
@@ -456,8 +456,8 @@ void WorldSession::HandleBuybackItem(WorldPacket& recvData)
     Creature* creature = GetPlayer()->GetNPCIfCanInteractWith(vendorguid, UNIT_NPC_FLAG_VENDOR);
     if (!creature)
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleBuybackItem - Unit (GUID: %u) not found or you can not interact with him.", uint32(GUID_LOPART(vendorguid)));
-        _player->SendSellError(SELL_ERR_CANT_FIND_VENDOR, NULL, 0);
+        TC_LOG_DEBUG("network", "WORLD: HandleBuybackItem - Unit (%s) not found or you can not interact with him.", vendorguid.ToString().c_str());
+        _player->SendSellError(SELL_ERR_CANT_FIND_VENDOR, NULL, ObjectGuid::Empty);
         return;
     }
 
@@ -496,7 +496,7 @@ void WorldSession::HandleBuybackItem(WorldPacket& recvData)
 void WorldSession::HandleBuyItemInSlotOpcode(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: Received CMSG_BUY_ITEM_IN_SLOT");
-    uint64 vendorguid, bagguid;
+    ObjectGuid vendorguid, bagguid;
     uint32 item, slot, count;
     uint8 bagslot;
 
@@ -529,7 +529,7 @@ void WorldSession::HandleBuyItemInSlotOpcode(WorldPacket& recvData)
 void WorldSession::HandleBuyItemOpcode(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: Received CMSG_BUY_ITEM");
-    uint64 vendorguid, bagGuid;
+    ObjectGuid vendorguid, bagGuid;
     uint32 item, slot, count;
     uint8 itemType; // 1 = item, 2 = currency
     uint8 bagSlot;
@@ -562,7 +562,7 @@ void WorldSession::HandleBuyItemOpcode(WorldPacket& recvData)
 
 void WorldSession::HandleListInventoryOpcode(WorldPacket& recvData)
 {
-    uint64 guid;
+    ObjectGuid guid;
 
     recvData >> guid;
 
@@ -574,15 +574,15 @@ void WorldSession::HandleListInventoryOpcode(WorldPacket& recvData)
     SendListInventory(guid);
 }
 
-void WorldSession::SendListInventory(uint64 vendorGuid)
+void WorldSession::SendListInventory(ObjectGuid vendorGuid)
 {
     TC_LOG_DEBUG("network", "WORLD: Sent SMSG_LIST_INVENTORY");
 
     Creature* vendor = GetPlayer()->GetNPCIfCanInteractWith(vendorGuid, UNIT_NPC_FLAG_VENDOR);
     if (!vendor)
     {
-        TC_LOG_DEBUG("network", "WORLD: SendListInventory - Unit (GUID: %u) not found or you can not interact with him.", uint32(GUID_LOPART(vendorGuid)));
-        _player->SendSellError(SELL_ERR_CANT_FIND_VENDOR, NULL, 0);
+        TC_LOG_DEBUG("network", "WORLD: SendListInventory - %s not found or you can not interact with him.", vendorGuid.ToString().c_str());
+        _player->SendSellError(SELL_ERR_CANT_FIND_VENDOR, NULL, ObjectGuid::Empty);
         return;
     }
 
@@ -801,7 +801,7 @@ void WorldSession::HandleBuyBankSlotOpcode(WorldPacket& recvPacket)
 {
     TC_LOG_DEBUG("network", "WORLD: CMSG_BUY_BANK_SLOT");
 
-    uint64 guid;
+    ObjectGuid guid;
     recvPacket >> guid;
 
     WorldPacket data(SMSG_BUY_BANK_SLOT_RESULT, 4);
@@ -809,7 +809,7 @@ void WorldSession::HandleBuyBankSlotOpcode(WorldPacket& recvPacket)
     {
         data << uint32(ERR_BANKSLOT_NOTBANKER);
         SendPacket(&data);
-        TC_LOG_DEBUG("network", "WORLD: HandleBuyBankSlotOpcode - Unit (GUID: %u) not found or you can't interact with him.", uint32(GUID_LOPART(guid)));
+        TC_LOG_DEBUG("network", "WORLD: HandleBuyBankSlotOpcode - %s not found or you can't interact with him.", guid.ToString().c_str());
         return;
     }
 
@@ -857,7 +857,7 @@ void WorldSession::HandleAutoBankItemOpcode(WorldPacket& recvPacket)
 
     if (!CanUseBank())
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleAutoBankItemOpcode - Unit (GUID: %u) not found or you can't interact with him.", uint32(GUID_LOPART(m_currentBankerGUID)));
+        TC_LOG_DEBUG("network", "WORLD: HandleAutoBankItemOpcode - Unit (%s) not found or you can't interact with him.", m_currentBankerGUID.ToString().c_str());
         return;
     }
 
@@ -894,7 +894,7 @@ void WorldSession::HandleAutoStoreBankItemOpcode(WorldPacket& recvPacket)
 
     if (!CanUseBank())
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleAutoStoreBankItemOpcode - Unit (GUID: %u) not found or you can't interact with him.", uint32(GUID_LOPART(m_currentBankerGUID)));
+        TC_LOG_DEBUG("network", "WORLD: HandleAutoStoreBankItemOpcode - Unit (%s) not found or you can't interact with him.", m_currentBankerGUID.ToString().c_str());
         return;
     }
 
@@ -931,17 +931,17 @@ void WorldSession::HandleAutoStoreBankItemOpcode(WorldPacket& recvPacket)
     }
 }
 
-void WorldSession::SendEnchantmentLog(uint64 target, uint64 caster, uint32 itemId, uint32 enchantId)
+void WorldSession::SendEnchantmentLog(ObjectGuid target, ObjectGuid caster, uint32 itemId, uint32 enchantId)
 {
     WorldPacket data(SMSG_ENCHANTMENTLOG, (8+8+4+4));
-    data.appendPackGUID(target);
-    data.appendPackGUID(caster);
+    data << target.WriteAsPacked();
+    data << caster.WriteAsPacked();
     data << uint32(itemId);
     data << uint32(enchantId);
     GetPlayer()->SendMessageToSet(&data, true);
 }
 
-void WorldSession::SendItemEnchantTimeUpdate(uint64 Playerguid, uint64 Itemguid, uint32 slot, uint32 Duration)
+void WorldSession::SendItemEnchantTimeUpdate(ObjectGuid Playerguid, ObjectGuid Itemguid, uint32 slot, uint32 Duration)
 {
                                                             // last check 2.0.10
     WorldPacket data(SMSG_ITEM_ENCHANT_TIME_UPDATE, (8+4+4+8));
@@ -996,7 +996,7 @@ void WorldSession::HandleWrapItemOpcode(WorldPacket& recvData)
         return;
     }
 
-    if (item->GetUInt64Value(ITEM_FIELD_GIFTCREATOR))        // HasFlag(ITEM_FIELD_FLAGS, ITEM_FLAGS_WRAPPED);
+    if (!item->GetGuidValue(ITEM_FIELD_GIFTCREATOR).IsEmpty())      // HasFlag(ITEM_FIELD_FLAGS, ITEM_FLAGS_WRAPPED);
     {
         _player->SendEquipError(EQUIP_ERR_CANT_WRAP_WRAPPED, item, NULL);
         return;
@@ -1030,7 +1030,7 @@ void WorldSession::HandleWrapItemOpcode(WorldPacket& recvData)
     SQLTransaction trans = CharacterDatabase.BeginTransaction();
 
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_INS_CHAR_GIFT);
-    stmt->setUInt32(0, GUID_LOPART(item->GetOwnerGUID()));
+    stmt->setUInt32(0, item->GetOwnerGUID().GetCounter());
     stmt->setUInt32(1, item->GetGUIDLow());
     stmt->setUInt32(2, item->GetEntry());
     stmt->setUInt32(3, item->GetUInt32Value(ITEM_FIELD_FLAGS));
@@ -1047,7 +1047,7 @@ void WorldSession::HandleWrapItemOpcode(WorldPacket& recvData)
         case 17307: item->SetEntry(17308); break;
         case 21830: item->SetEntry(21831); break;
     }
-    item->SetUInt64Value(ITEM_FIELD_GIFTCREATOR, _player->GetGUID());
+    item->SetGuidValue(ITEM_FIELD_GIFTCREATOR, _player->GetGUID());
     item->SetUInt32Value(ITEM_FIELD_FLAGS, ITEM_FLAG_WRAPPED);
     item->SetState(ITEM_CHANGED, _player);
 
@@ -1067,8 +1067,8 @@ void WorldSession::HandleSocketOpcode(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: CMSG_SOCKET_GEMS");
 
-    uint64 item_guid;
-    uint64 gem_guids[MAX_GEM_SOCKETS];
+    ObjectGuid item_guid;
+    ObjectGuid gem_guids[MAX_GEM_SOCKETS];
 
     recvData >> item_guid;
     if (!item_guid)
@@ -1300,7 +1300,7 @@ void WorldSession::HandleItemRefundInfoRequest(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: CMSG_ITEM_REFUND_INFO");
 
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;                                      // item guid
 
     Item* item = _player->GetItemByGuid(guid);
@@ -1316,7 +1316,7 @@ void WorldSession::HandleItemRefundInfoRequest(WorldPacket& recvData)
 void WorldSession::HandleItemRefund(WorldPacket &recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: CMSG_ITEM_REFUND");
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;                                      // item guid
 
     Item* item = _player->GetItemByGuid(guid);
@@ -1340,10 +1340,10 @@ void WorldSession::HandleItemRefund(WorldPacket &recvData)
  */
 void WorldSession::HandleItemTextQuery(WorldPacket& recvData )
 {
-    uint64 itemGuid;
+    ObjectGuid itemGuid;
     recvData >> itemGuid;
 
-    TC_LOG_DEBUG("network", "CMSG_ITEM_TEXT_QUERY item guid: %u", GUID_LOPART(itemGuid));
+    TC_LOG_DEBUG("network", "CMSG_ITEM_TEXT_QUERY %s", itemGuid.ToString().c_str());
 
     WorldPacket data(SMSG_ITEM_TEXT_QUERY_RESPONSE, 14);    // guess size
 
@@ -1376,7 +1376,7 @@ void WorldSession::HandleTransmogrifyItems(WorldPacket& recvData)
         return;
     }
 
-    std::vector<ObjectGuid> itemGuids(count, ObjectGuid(0));
+    std::vector<ObjectGuid> itemGuids(count, ObjectGuid());
     std::vector<uint32> newEntries(count, 0);
     std::vector<uint32> slots(count, 0);
 
@@ -1433,7 +1433,7 @@ void WorldSession::HandleTransmogrifyItems(WorldPacket& recvData)
 
     if (!player->GetNPCIfCanInteractWith(npcGuid, UNIT_NPC_FLAG_TRANSMOGRIFIER))
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleTransmogrifyItems - Unit (GUID: %u) not found or player can't interact with it.", GUID_LOPART(npcGuid));
+        TC_LOG_DEBUG("network", "WORLD: HandleTransmogrifyItems - %s not found or player can't interact with it.", npcGuid.ToString().c_str());
         return;
     }
 
@@ -1446,7 +1446,7 @@ void WorldSession::HandleTransmogrifyItems(WorldPacket& recvData)
         // slot of the transmogrified item
         if (slots[i] >= EQUIPMENT_SLOT_END)
         {
-            TC_LOG_DEBUG("network", "WORLD: HandleTransmogrifyItems - Player (GUID: %u, name: %s) tried to transmogrify an item (lowguid: %u) with a wrong slot (%u) when transmogrifying items.", player->GetGUIDLow(), player->GetName().c_str(), GUID_LOPART(itemGuids[i]), slots[i]);
+            TC_LOG_DEBUG("network", "WORLD: HandleTransmogrifyItems - Player (GUID: %u, name: %s) tried to transmogrify %s with a wrong slot (%u) when transmogrifying items.", player->GetGUIDLow(), player->GetName().c_str(), itemGuids[i].ToString().c_str(), slots[i]);
             return;
         }
 
@@ -1474,14 +1474,14 @@ void WorldSession::HandleTransmogrifyItems(WorldPacket& recvData)
             itemTransmogrifier = player->GetItemByGuid(itemGuids[i]);
             if (!itemTransmogrifier)
             {
-                TC_LOG_DEBUG("network", "WORLD: HandleTransmogrifyItems - Player (GUID: %u, name: %s) tried to transmogrify with an invalid item (lowguid: %u).", player->GetGUIDLow(), player->GetName().c_str(), GUID_LOPART(itemGuids[i]));
+                TC_LOG_DEBUG("network", "WORLD: HandleTransmogrifyItems - Player (GUID: %u, name: %s) tried to transmogrify with an invalid item (%s).", player->GetGUIDLow(), player->GetName().c_str(), itemGuids[i].ToString().c_str());
                 return;
             }
 
             // entry of transmogrifier and from packet
             if (itemTransmogrifier->GetEntry() != newEntries[i])
             {
-                TC_LOG_DEBUG("network", "WORLD: HandleTransmogrifyItems - Player (GUID: %u, name: %s) tried to transmogrify with an invalid entry (entry: %u) for item (lowguid: %u).", player->GetGUIDLow(), player->GetName().c_str(), newEntries[i], GUID_LOPART(itemGuids[i]));
+                TC_LOG_DEBUG("network", "WORLD: HandleTransmogrifyItems - Player (GUID: %u, name: %s) tried to transmogrify with an invalid entry (entry: %u) for %s.", player->GetGUIDLow(), player->GetName().c_str(), newEntries[i], itemGuids[i].ToString().c_str());
                 return;
             }
 
@@ -1576,7 +1576,7 @@ void WorldSession::HandleReforgeItemOpcode(WorldPacket& recvData)
 
     if (!player->GetNPCIfCanInteractWith(guid, UNIT_NPC_FLAG_REFORGER))
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleReforgeItemOpcode - Unit (GUID: %u) not found or player can't interact with it.", GUID_LOPART(guid));
+        TC_LOG_DEBUG("network", "WORLD: HandleReforgeItemOpcode - %s not found or player can't interact with it.", guid.ToString().c_str());
         SendReforgeResult(false);
         return;
     }
@@ -1644,7 +1644,7 @@ void WorldSession::HandleReforgeItemOpcode(WorldPacket& recvData)
         player->ApplyReforgeEnchantment(item, true);
 }
 
-bool WorldSession::CanUseBank(uint64 bankerGUID) const
+bool WorldSession::CanUseBank(ObjectGuid bankerGUID) const
 {
     // bankerGUID parameter is optional, set to 0 by default.
     if (!bankerGUID)
diff --git a/src/server/game/Handlers/LFGHandler.cpp b/src/server/game/Handlers/LFGHandler.cpp
index 8f38a940d21..ea8f86e2adf 100644
--- a/src/server/game/Handlers/LFGHandler.cpp
+++ b/src/server/game/Handlers/LFGHandler.cpp
@@ -128,8 +128,8 @@ void WorldSession::HandleLfgLeaveOpcode(WorldPacket& recvData)
 {
     ObjectGuid leaveGuid;
     Group* group = GetPlayer()->GetGroup();
-    uint64 guid = GetPlayer()->GetGUID();
-    uint64 gguid = group ? group->GetGUID() : guid;
+    ObjectGuid guid = GetPlayer()->GetGUID();
+    ObjectGuid gguid = group ? group->GetGUID() : guid;
 
     recvData.read_skip<uint32>();                          // Always 8
     recvData.read_skip<uint32>();                          // Join date
@@ -221,7 +221,7 @@ void WorldSession::HandleLfgSetRolesOpcode(WorldPacket& recvData)
 {
     uint8 roles;
     recvData >> roles;                                     // Player Group Roles
-    uint64 guid = GetPlayer()->GetGUID();
+    ObjectGuid guid = GetPlayer()->GetGUID();
     Group* group = GetPlayer()->GetGroup();
     if (!group)
     {
@@ -229,9 +229,9 @@ void WorldSession::HandleLfgSetRolesOpcode(WorldPacket& recvData)
             GetPlayerInfo().c_str());
         return;
     }
-    uint64 gguid = group->GetGUID();
+    ObjectGuid gguid = group->GetGUID();
     TC_LOG_DEBUG("lfg", "CMSG_LFG_SET_ROLES: Group %u, Player %s, Roles: %u",
-        GUID_LOPART(gguid), GetPlayerInfo().c_str(), roles);
+        gguid.GetCounter(), GetPlayerInfo().c_str(), roles);
     sLFGMgr->UpdateRoleCheck(gguid, guid, roles);
 }
 
@@ -251,7 +251,7 @@ void WorldSession::HandleLfgSetBootVoteOpcode(WorldPacket& recvData)
     bool agree;                                            // Agree to kick player
     recvData >> agree;
 
-    uint64 guid = GetPlayer()->GetGUID();
+    ObjectGuid guid = GetPlayer()->GetGUID();
     TC_LOG_DEBUG("lfg", "CMSG_LFG_SET_BOOT_VOTE %s agree: %u",
         GetPlayerInfo().c_str(), agree ? 1 : 0);
     sLFGMgr->UpdateBoot(guid, agree);
@@ -280,7 +280,7 @@ void WorldSession::HandleLfgGetLockInfoOpcode(WorldPacket& recvData)
 
 void WorldSession::SendLfgPlayerLockInfo()
 {
-    uint64 guid = GetPlayer()->GetGUID();
+    ObjectGuid guid = GetPlayer()->GetGUID();
 
     // Get Random dungeons that can be done at a certain level and expansion
     uint8 level = GetPlayer()->getLevel();
@@ -352,7 +352,7 @@ void WorldSession::SendLfgPlayerLockInfo()
 
 void WorldSession::SendLfgPartyLockInfo()
 {
-    uint64 guid = GetPlayer()->GetGUID();
+    ObjectGuid guid = GetPlayer()->GetGUID();
     Group* group = GetPlayer()->GetGroup();
     if (!group)
         return;
@@ -365,7 +365,7 @@ void WorldSession::SendLfgPartyLockInfo()
         if (!plrg)
             continue;
 
-        uint64 pguid = plrg->GetGUID();
+        ObjectGuid pguid = plrg->GetGUID();
         if (pguid == guid)
             continue;
 
@@ -407,7 +407,7 @@ void WorldSession::HandleLfgGetStatus(WorldPacket& /*recvData*/)
     if (!GetPlayer()->isUsingLfg())
         return;
 
-    uint64 guid = GetPlayer()->GetGUID();
+    ObjectGuid guid = GetPlayer()->GetGUID();
     lfg::LfgUpdateData updateData = sLFGMgr->GetLfgStatus(guid);
 
     if (GetPlayer()->GetGroup())
@@ -495,10 +495,10 @@ void WorldSession::SendLfgUpdateStatus(lfg::LfgUpdateData const& updateData, boo
     SendPacket(&data);
 }
 
-void WorldSession::SendLfgRoleChosen(uint64 guid, uint8 roles)
+void WorldSession::SendLfgRoleChosen(ObjectGuid guid, uint8 roles)
 {
     TC_LOG_DEBUG("lfg", "SMSG_LFG_ROLE_CHOSEN %s guid: %u roles: %u",
-        GetPlayerInfo().c_str(), GUID_LOPART(guid), roles);
+        GetPlayerInfo().c_str(), guid.GetCounter(), roles);
 
     WorldPacket data(SMSG_LFG_ROLE_CHOSEN, 8 + 1 + 4);
     data << uint64(guid);                                  // Guid
@@ -529,7 +529,7 @@ void WorldSession::SendLfgRoleCheckUpdate(lfg::LfgRoleCheck const& roleCheck)
     if (!roleCheck.roles.empty())
     {
         // Leader info MUST be sent 1st :S
-        uint64 guid = roleCheck.leader;
+        ObjectGuid guid = roleCheck.leader;
         uint8 roles = roleCheck.roles.find(guid)->second;
         Player* player = ObjectAccessor::FindPlayer(guid);
         data << uint64(guid);                              // Guid
@@ -694,7 +694,7 @@ void WorldSession::SendLfgPlayerReward(lfg::LfgPlayerRewardData const& rewardDat
 
 void WorldSession::SendLfgBootProposalUpdate(lfg::LfgPlayerBoot const& boot)
 {
-    uint64 guid = GetPlayer()->GetGUID();
+    ObjectGuid guid = GetPlayer()->GetGUID();
     lfg::LfgAnswer playerVote = boot.votes.find(guid)->second;
     uint8 votesNum = 0;
     uint8 agreeNum = 0;
@@ -712,7 +712,7 @@ void WorldSession::SendLfgBootProposalUpdate(lfg::LfgPlayerBoot const& boot)
         "didVote: %u - agree: %u - victim: %u votes: %u - agrees: %u - left: %u - "
         "needed: %u - reason %s",
         GetPlayerInfo().c_str(), uint8(boot.inProgress), uint8(playerVote != lfg::LFG_ANSWER_PENDING),
-        uint8(playerVote == lfg::LFG_ANSWER_AGREE), GUID_LOPART(boot.victim), votesNum, agreeNum,
+        uint8(playerVote == lfg::LFG_ANSWER_AGREE), boot.victim.GetCounter(), votesNum, agreeNum,
         secsleft, lfg::LFG_GROUP_KICK_VOTES_NEEDED, boot.reason.c_str());
     WorldPacket data(SMSG_LFG_BOOT_PROPOSAL_UPDATE, 1 + 1 + 1 + 1 + 8 + 4 + 4 + 4 + 4 + boot.reason.length());
     data << uint8(boot.inProgress);                                 // Vote in progress
@@ -730,8 +730,8 @@ void WorldSession::SendLfgBootProposalUpdate(lfg::LfgPlayerBoot const& boot)
 
 void WorldSession::SendLfgUpdateProposal(lfg::LfgProposal const& proposal)
 {
-    uint64 guid = GetPlayer()->GetGUID();
-    uint64 gguid = proposal.players.find(guid)->second.group;
+    ObjectGuid guid = GetPlayer()->GetGUID();
+    ObjectGuid gguid = proposal.players.find(guid)->second.group;
     bool silent = !proposal.isNew && gguid == proposal.group;
     uint32 dungeonEntry = proposal.dungeonId;
     uint32 queueId = sLFGMgr->GetQueueId(_player->GetGUID());
diff --git a/src/server/game/Handlers/LootHandler.cpp b/src/server/game/Handlers/LootHandler.cpp
index 692f5b80953..7adbdccd061 100644
--- a/src/server/game/Handlers/LootHandler.cpp
+++ b/src/server/game/Handlers/LootHandler.cpp
@@ -36,13 +36,13 @@ void WorldSession::HandleAutostoreLootItemOpcode(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: CMSG_AUTOSTORE_LOOT_ITEM");
     Player* player = GetPlayer();
-    uint64 lguid = player->GetLootGUID();
+    ObjectGuid lguid = player->GetLootGUID();
     Loot* loot = NULL;
     uint8 lootSlot = 0;
 
     recvData >> lootSlot;
 
-    if (IS_GAMEOBJECT_GUID(lguid))
+    if (lguid.IsGameObject())
     {
         GameObject* go = player->GetMap()->GetGameObject(lguid);
 
@@ -55,7 +55,7 @@ void WorldSession::HandleAutostoreLootItemOpcode(WorldPacket& recvData)
 
         loot = &go->loot;
     }
-    else if (IS_ITEM_GUID(lguid))
+    else if (lguid.IsItem())
     {
         Item* pItem = player->GetItemByGuid(lguid);
 
@@ -67,7 +67,7 @@ void WorldSession::HandleAutostoreLootItemOpcode(WorldPacket& recvData)
 
         loot = &pItem->loot;
     }
-    else if (IS_CORPSE_GUID(lguid))
+    else if (lguid.IsCorpse())
     {
         Corpse* bones = ObjectAccessor::GetCorpse(*player, lguid);
         if (!bones)
@@ -95,7 +95,7 @@ void WorldSession::HandleAutostoreLootItemOpcode(WorldPacket& recvData)
     player->StoreLootItem(lootSlot, loot);
 
     // If player is removing the last LootItem, delete the empty container.
-    if (loot->isLooted() && IS_ITEM_GUID(lguid))
+    if (loot->isLooted() && lguid.IsItem())
         player->GetSession()->DoLootRelease(lguid);
 }
 
@@ -104,14 +104,14 @@ void WorldSession::HandleLootMoneyOpcode(WorldPacket& /*recvData*/)
     TC_LOG_DEBUG("network", "WORLD: CMSG_LOOT_MONEY");
 
     Player* player = GetPlayer();
-    uint64 guid = player->GetLootGUID();
+    ObjectGuid guid = player->GetLootGUID();
     if (!guid)
         return;
 
     Loot* loot = NULL;
     bool shareMoney = true;
 
-    switch (GUID_HIPART(guid))
+    switch (guid.GetHigh())
     {
         case HIGHGUID_GAMEOBJECT:
         {
@@ -220,7 +220,7 @@ void WorldSession::HandleLootMoneyOpcode(WorldPacket& /*recvData*/)
             loot->DeleteLootMoneyFromContainerItemDB();
 
         // Delete container if empty
-        if (loot->isLooted() && IS_ITEM_GUID(guid))
+        if (loot->isLooted() && guid.IsItem())
             player->GetSession()->DoLootRelease(guid);
     }
 }
@@ -229,11 +229,11 @@ void WorldSession::HandleLootOpcode(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: CMSG_LOOT");
 
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
 
     // Check possible cheat
-    if (!GetPlayer()->IsAlive() || !IS_CRE_OR_VEH_GUID(guid))
+    if (!GetPlayer()->IsAlive() || !guid.IsCreatureOrVehicle())
         return;
 
     GetPlayer()->SendLoot(guid, LOOT_CORPSE);
@@ -249,20 +249,20 @@ void WorldSession::HandleLootReleaseOpcode(WorldPacket& recvData)
 
     // cheaters can modify lguid to prevent correct apply loot release code and re-loot
     // use internal stored guid
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
 
-    if (uint64 lguid = GetPlayer()->GetLootGUID())
+    if (ObjectGuid lguid = GetPlayer()->GetLootGUID())
         if (lguid == guid)
             DoLootRelease(lguid);
 }
 
-void WorldSession::DoLootRelease(uint64 lguid)
+void WorldSession::DoLootRelease(ObjectGuid lguid)
 {
     Player  *player = GetPlayer();
     Loot    *loot;
 
-    player->SetLootGUID(0);
+    player->SetLootGUID(ObjectGuid::Empty);
     player->SendLootRelease(lguid);
 
     player->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_LOOTING);
@@ -270,7 +270,7 @@ void WorldSession::DoLootRelease(uint64 lguid)
     if (!player->IsInWorld())
         return;
 
-    if (IS_GAMEOBJECT_GUID(lguid))
+    if (lguid.IsGameObject())
     {
         GameObject* go = GetPlayer()->GetMap()->GetGameObject(lguid);
 
@@ -307,10 +307,10 @@ void WorldSession::DoLootRelease(uint64 lguid)
 
             // if the round robin player release, reset it.
             if (player->GetGUID() == loot->roundRobinPlayer)
-                loot->roundRobinPlayer = 0;
+                loot->roundRobinPlayer.Clear();
         }
     }
-    else if (IS_CORPSE_GUID(lguid))        // ONLY remove insignia at BG
+    else if (lguid.IsCorpse())        // ONLY remove insignia at BG
     {
         Corpse* corpse = ObjectAccessor::GetCorpse(*player, lguid);
         if (!corpse || !corpse->IsWithinDistInMap(_player, INTERACTION_DISTANCE))
@@ -324,7 +324,7 @@ void WorldSession::DoLootRelease(uint64 lguid)
             corpse->RemoveFlag(CORPSE_FIELD_DYNAMIC_FLAGS, CORPSE_DYNFLAG_LOOTABLE);
         }
     }
-    else if (IS_ITEM_GUID(lguid))
+    else if (lguid.IsItem())
     {
         Item* pItem = player->GetItemByGuid(lguid);
         if (!pItem)
@@ -378,7 +378,7 @@ void WorldSession::DoLootRelease(uint64 lguid)
             // if the round robin player release, reset it.
             if (player->GetGUID() == loot->roundRobinPlayer)
             {
-                loot->roundRobinPlayer = 0;
+                loot->roundRobinPlayer.Clear();
 
                 if (Group* group = player->GetGroup())
                 {
@@ -398,7 +398,7 @@ void WorldSession::DoLootRelease(uint64 lguid)
 void WorldSession::HandleLootMasterGiveOpcode(WorldPacket& recvData)
 {
     uint8 slotid;
-    uint64 lootguid, target_playerguid;
+    ObjectGuid lootguid, target_playerguid;
 
     recvData >> lootguid >> slotid >> target_playerguid;
 
@@ -408,7 +408,7 @@ void WorldSession::HandleLootMasterGiveOpcode(WorldPacket& recvData)
         return;
     }
 
-    Player* target = ObjectAccessor::FindPlayer(MAKE_NEW_GUID(target_playerguid, 0, HIGHGUID_PLAYER));
+    Player* target = ObjectAccessor::FindPlayer(target_playerguid);
     if (!target)
     {
         _player->SendLootError(lootguid, LOOT_ERROR_PLAYER_NOT_FOUND);
@@ -432,7 +432,7 @@ void WorldSession::HandleLootMasterGiveOpcode(WorldPacket& recvData)
 
     Loot* loot = NULL;
 
-    if (IS_CRE_OR_VEH_GUID(GetPlayer()->GetLootGUID()))
+    if (GetPlayer()->GetLootGUID().IsCreatureOrVehicle())
     {
         Creature* creature = GetPlayer()->GetMap()->GetCreature(lootguid);
         if (!creature)
@@ -440,7 +440,7 @@ void WorldSession::HandleLootMasterGiveOpcode(WorldPacket& recvData)
 
         loot = &creature->loot;
     }
-    else if (IS_GAMEOBJECT_GUID(GetPlayer()->GetLootGUID()))
+    else if (GetPlayer()->GetLootGUID().IsGameObject())
     {
         GameObject* pGO = GetPlayer()->GetMap()->GetGameObject(lootguid);
         if (!pGO)
diff --git a/src/server/game/Handlers/MailHandler.cpp b/src/server/game/Handlers/MailHandler.cpp
index 1359032080b..adf70223db9 100644
--- a/src/server/game/Handlers/MailHandler.cpp
+++ b/src/server/game/Handlers/MailHandler.cpp
@@ -31,7 +31,7 @@
 #include "BattlenetAccountMgr.h"
 #include "GuildMgr.h"
 
-bool WorldSession::CanOpenMailBox(uint64 guid)
+bool WorldSession::CanOpenMailBox(ObjectGuid guid)
 {
     if (guid == _player->GetGUID())
     {
@@ -41,12 +41,12 @@ bool WorldSession::CanOpenMailBox(uint64 guid)
             return false;
         }
     }
-    else if (IS_GAMEOBJECT_GUID(guid))
+    else if (guid.IsGameObject())
     {
         if (!_player->GetGameObjectIfCanInteractWith(guid, GAMEOBJECT_TYPE_MAILBOX))
             return false;
     }
-    else if (IS_CRE_OR_VEH_OR_PET_GUID(guid))
+    else if (guid.IsAnyTypeCreature())
     {
         if (!_player->GetNPCIfCanInteractWith(guid, UNIT_NPC_FLAG_MAILBOX))
             return false;
@@ -63,10 +63,10 @@ void WorldSession::HandleSendMail(WorldPacket& recvData)
     uint64 money, COD;
     std::string receiverName, subject, body;
     uint32 bodyLength, subjectLength, receiverLength;
-    uint32 unk1, unk2;
+    uint32 package, stationery;
 
-    recvData >> unk1;
-    recvData >> unk2; // Stationery?
+    recvData >> package;
+    recvData >> stationery;
 
     recvData >> COD >> money;                              // money and cod
     bodyLength = recvData.ReadBits(12);
@@ -152,7 +152,7 @@ void WorldSession::HandleSendMail(WorldPacket& recvData)
         return;
     }
 
-    uint64 receiverGuid = 0;
+    ObjectGuid receiverGuid;
     if (normalizePlayerName(receiverName))
         receiverGuid = sObjectMgr->GetPlayerGUIDByName(receiverName);
 
@@ -161,15 +161,15 @@ void WorldSession::HandleSendMail(WorldPacket& recvData)
         TC_LOG_INFO("network", "Player %u is sending mail to %s (GUID: not existed!) with subject %s "
             "and body %s includes %u items, " UI64FMTD " copper and " UI64FMTD " COD copper with unk1 = %u, unk2 = %u",
             player->GetGUIDLow(), receiverName.c_str(), subject.c_str(), body.c_str(),
-            items_count, money, COD, unk1, unk2);
+            items_count, money, COD, stationery, package);
         player->SendMailResult(0, MAIL_SEND, MAIL_ERR_RECIPIENT_NOT_FOUND);
         return;
     }
 
-    TC_LOG_INFO("network", "Player %u is sending mail to %s (GUID: %u) with subject %s and body %s "
+    TC_LOG_INFO("network", "Player %u is sending mail to %s (%s) with subject %s and body %s "
         "includes %u items, " UI64FMTD " copper and " UI64FMTD " COD copper with unk1 = %u, unk2 = %u",
-        player->GetGUIDLow(), receiverName.c_str(), GUID_LOPART(receiverGuid), subject.c_str(),
-        body.c_str(), items_count, money, COD, unk1, unk2);
+        player->GetGUIDLow(), receiverName.c_str(), receiverGuid.ToString().c_str(), subject.c_str(),
+        body.c_str(), items_count, money, COD, stationery, package);
 
     if (player->GetGUID() == receiverGuid)
     {
@@ -215,7 +215,7 @@ void WorldSession::HandleSendMail(WorldPacket& recvData)
         receiverTeam = sObjectMgr->GetPlayerTeamByGUID(receiverGuid);
 
         PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_MAIL_COUNT);
-        stmt->setUInt32(0, GUID_LOPART(receiverGuid));
+        stmt->setUInt32(0, receiverGuid.GetCounter());
 
         PreparedQueryResult result = CharacterDatabase.Query(stmt);
         if (result)
@@ -225,7 +225,7 @@ void WorldSession::HandleSendMail(WorldPacket& recvData)
         }
 
         stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_CHAR_LEVEL);
-        stmt->setUInt32(0, GUID_LOPART(receiverGuid));
+        stmt->setUInt32(0, receiverGuid.GetCounter());
 
         result = CharacterDatabase.Query(stmt);
         if (result)
@@ -349,9 +349,9 @@ void WorldSession::HandleSendMail(WorldPacket& recvData)
                 if (log)
                 {
                     sLog->outCommand(GetAccountId(), "GM %s (GUID: %u) (Account: %u) mail item: %s (Entry: %u Count: %u) "
-                        "to player: %s (GUID: %u) (Account: %u)", GetPlayerName().c_str(), GetGuidLow(), GetAccountId(),
+                        "to: %s (%s) (Account: %u)", GetPlayerName().c_str(), GetGuidLow(), GetAccountId(),
                         item->GetTemplate()->Name1.c_str(), item->GetEntry(), item->GetCount(),
-                        receiverName.c_str(), GUID_LOPART(receiverGuid), receiverAccountId);
+                        receiverName.c_str(), receiverGuid.ToString().c_str(), receiverAccountId);
                 }
 
                 item->SetNotRefundable(GetPlayer()); // makes the item no longer refundable
@@ -370,8 +370,8 @@ void WorldSession::HandleSendMail(WorldPacket& recvData)
 
         if (log && money > 0)
         {
-            sLog->outCommand(GetAccountId(), "GM %s (GUID: %u) (Account: %u) mail money: " UI64FMTD " to player: %s (GUID: %u) (Account: %u)",
-                GetPlayerName().c_str(), GetGuidLow(), GetAccountId(), money, receiverName.c_str(), GUID_LOPART(receiverGuid), receiverAccountId);
+            sLog->outCommand(GetAccountId(), "GM %s (GUID: %u) (Account: %u) mail money: " UI64FMTD " to: %s (%s) (Account: %u)",
+                GetPlayerName().c_str(), GetGuidLow(), GetAccountId(), money, receiverName.c_str(), receiverGuid.ToString().c_str(), receiverAccountId);
         }
     }
 
@@ -391,7 +391,7 @@ void WorldSession::HandleSendMail(WorldPacket& recvData)
     draft
         .AddMoney(money)
         .AddCOD(COD)
-        .SendMailTo(trans, MailReceiver(receiver, GUID_LOPART(receiverGuid)), MailSender(player), body.empty() ? MAIL_CHECK_MASK_COPIED : MAIL_CHECK_MASK_HAS_BODY, deliver_delay);
+        .SendMailTo(trans, MailReceiver(receiver, receiverGuid.GetCounter()), MailSender(player), body.empty() ? MAIL_CHECK_MASK_COPIED : MAIL_CHECK_MASK_HAS_BODY, deliver_delay);
 
     player->SaveInventoryAndGoldToDB(trans);
     CharacterDatabase.CommitTransaction(trans);
@@ -400,7 +400,7 @@ void WorldSession::HandleSendMail(WorldPacket& recvData)
 //called when mail is read
 void WorldSession::HandleMailMarkAsRead(WorldPacket& recvData)
 {
-    uint64 mailbox;
+    ObjectGuid mailbox;
     uint32 mailId;
     recvData >> mailbox;
     recvData >> mailId;
@@ -423,7 +423,7 @@ void WorldSession::HandleMailMarkAsRead(WorldPacket& recvData)
 //called when client deletes mail
 void WorldSession::HandleMailDelete(WorldPacket& recvData)
 {
-    uint64 mailbox;
+    ObjectGuid mailbox;
     uint32 mailId;
     recvData >> mailbox;
     recvData >> mailId;
@@ -451,7 +451,7 @@ void WorldSession::HandleMailDelete(WorldPacket& recvData)
 
 void WorldSession::HandleMailReturnToSender(WorldPacket& recvData)
 {
-    uint64 mailbox;
+    ObjectGuid mailbox;
     uint32 mailId;
     recvData >> mailbox;
     recvData >> mailId;
@@ -508,7 +508,7 @@ void WorldSession::HandleMailReturnToSender(WorldPacket& recvData)
 //called when player takes item attached in mail
 void WorldSession::HandleMailTakeItem(WorldPacket& recvData)
 {
-    uint64 mailbox;
+    ObjectGuid mailbox;
     uint32 mailId;
     uint32 itemId;
     recvData >> mailbox;
@@ -553,7 +553,7 @@ void WorldSession::HandleMailTakeItem(WorldPacket& recvData)
 
         if (m->COD > 0)                                     //if there is COD, take COD money from player and send them to sender by mail
         {
-            uint64 sender_guid = MAKE_NEW_GUID(m->sender, 0, HIGHGUID_PLAYER);
+            ObjectGuid sender_guid(HIGHGUID_PLAYER, m->sender);
             Player* receiver = ObjectAccessor::FindPlayer(sender_guid);
 
             uint32 sender_accId = 0;
@@ -611,7 +611,7 @@ void WorldSession::HandleMailTakeItem(WorldPacket& recvData)
 
 void WorldSession::HandleMailTakeMoney(WorldPacket& recvData)
 {
-    uint64 mailbox;
+    ObjectGuid mailbox;
     uint64 money;
     uint32 mailId;
 
@@ -654,7 +654,7 @@ void WorldSession::HandleMailTakeMoney(WorldPacket& recvData)
 //called when player lists his received mails
 void WorldSession::HandleGetMailList(WorldPacket& recvData)
 {
-    uint64 mailbox;
+    ObjectGuid mailbox;
     recvData >> mailbox;
 
     if (!CanOpenMailBox(mailbox))
@@ -707,7 +707,7 @@ void WorldSession::HandleGetMailList(WorldPacket& recvData)
         switch ((*itr)->messageType)
         {
             case MAIL_NORMAL:                               // sender guid
-                data << uint64(MAKE_NEW_GUID((*itr)->sender, 0, HIGHGUID_PLAYER));
+                data << ObjectGuid(HIGHGUID_PLAYER, (*itr)->sender);
                 break;
             case MAIL_CREATURE:
             case MAIL_GAMEOBJECT:
@@ -775,7 +775,7 @@ void WorldSession::HandleGetMailList(WorldPacket& recvData)
 //used when player copies mail body to his inventory
 void WorldSession::HandleMailCreateTextItem(WorldPacket& recvData)
 {
-    uint64 mailbox;
+    ObjectGuid mailbox;
     uint32 mailId;
 
     recvData >> mailbox;
@@ -815,7 +815,9 @@ void WorldSession::HandleMailCreateTextItem(WorldPacket& recvData)
     else
         bodyItem->SetText(m->body);
 
-    bodyItem->SetUInt32Value(ITEM_FIELD_CREATOR, m->sender);
+    if (m->messageType == MAIL_NORMAL)
+        bodyItem->SetGuidValue(ITEM_FIELD_CREATOR, ObjectGuid(HIGHGUID_PLAYER, m->sender));
+
     bodyItem->SetFlag(ITEM_FIELD_FLAGS, ITEM_FLAG_MAIL_TEXT_MASK);
 
     TC_LOG_INFO("network", "HandleMailCreateTextItem mailid=%u", mailId);
@@ -869,7 +871,7 @@ void WorldSession::HandleQueryNextMailTime(WorldPacket& /*recvData*/)
             if (sentSenders.count(m->sender))
                 continue;
 
-            data << uint64(m->messageType == MAIL_NORMAL ? m->sender : 0);  // player guid
+            data << uint64(m->messageType == MAIL_NORMAL ? ObjectGuid(HIGHGUID_PLAYER, m->sender) : ObjectGuid::Empty);  // player guid
             data << uint32(m->messageType != MAIL_NORMAL ? m->sender : 0);  // non-player entries
             data << uint32(m->messageType);
             data << uint32(m->stationery);
@@ -891,10 +893,3 @@ void WorldSession::HandleQueryNextMailTime(WorldPacket& /*recvData*/)
 
     SendPacket(&data);
 }
-
-void WorldSession::SendShowMailBox(uint64 guid)
-{
-    WorldPacket data(SMSG_SHOW_MAILBOX, 8);
-    data << guid;
-    SendPacket(&data);
-}
diff --git a/src/server/game/Handlers/MiscHandler.cpp b/src/server/game/Handlers/MiscHandler.cpp
index 81c08b4c35b..279b06e2cef 100644
--- a/src/server/game/Handlers/MiscHandler.cpp
+++ b/src/server/game/Handlers/MiscHandler.cpp
@@ -93,7 +93,7 @@ void WorldSession::HandleGossipSelectOptionOpcode(WorldPacket& recvData)
 
     uint32 gossipListId;
     uint32 menuId;
-    uint64 guid;
+    ObjectGuid guid;
     std::string code = "";
 
     recvData >> guid >> menuId >> gossipListId;
@@ -113,27 +113,27 @@ void WorldSession::HandleGossipSelectOptionOpcode(WorldPacket& recvData)
 
     Creature* unit = NULL;
     GameObject* go = NULL;
-    if (IS_CRE_OR_VEH_GUID(guid))
+    if (guid.IsCreatureOrVehicle())
     {
         unit = GetPlayer()->GetNPCIfCanInteractWith(guid, UNIT_NPC_FLAG_NONE);
         if (!unit)
         {
-            TC_LOG_DEBUG("network", "WORLD: HandleGossipSelectOptionOpcode - Unit (GUID: %u) not found or you can't interact with him.", uint32(GUID_LOPART(guid)));
+            TC_LOG_DEBUG("network", "WORLD: HandleGossipSelectOptionOpcode - %s not found or you can't interact with him.", guid.ToString().c_str());
             return;
         }
     }
-    else if (IS_GAMEOBJECT_GUID(guid))
+    else if (guid.IsGameObject())
     {
         go = _player->GetMap()->GetGameObject(guid);
         if (!go)
         {
-            TC_LOG_DEBUG("network", "WORLD: HandleGossipSelectOptionOpcode - GameObject (GUID: %u) not found.", uint32(GUID_LOPART(guid)));
+            TC_LOG_DEBUG("network", "WORLD: HandleGossipSelectOptionOpcode - %s not found.", guid.ToString().c_str());
             return;
         }
     }
     else
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleGossipSelectOptionOpcode - unsupported GUID type for highguid %u. lowpart %u.", uint32(GUID_HIPART(guid)), uint32(GUID_LOPART(guid)));
+        TC_LOG_DEBUG("network", "WORLD: HandleGossipSelectOptionOpcode - unsupported %s.", guid.ToString().c_str());
         return;
     }
 
@@ -377,7 +377,7 @@ void WorldSession::HandleLogoutRequestOpcode(WorldPacket& /*recvData*/)
 {
     TC_LOG_DEBUG("network", "WORLD: Recvd CMSG_LOGOUT_REQUEST Message, security - %u", GetSecurity());
 
-    if (uint64 lguid = GetPlayer()->GetLootGUID())
+    if (ObjectGuid lguid = GetPlayer()->GetLootGUID())
         DoLootRelease(lguid);
 
     bool instantLogout = (GetPlayer()->HasFlag(PLAYER_FLAGS, PLAYER_FLAGS_RESTING) && !GetPlayer()->IsInCombat()) ||
@@ -541,7 +541,7 @@ void WorldSession::HandleRequestCemeteryList(WorldPacket& /*recvPacket*/)
 
 void WorldSession::HandleSetSelectionOpcode(WorldPacket& recvData)
 {
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
 
     _player->SetSelection(guid);
@@ -593,19 +593,18 @@ void WorldSession::HandleAddFriendOpcodeCallBack(PreparedQueryResult result, std
     if (!GetPlayer())
         return;
 
-    uint64 friendGuid;
+    ObjectGuid friendGuid;
     uint32 friendAccountId;
     uint32 team;
     FriendsResult friendResult;
 
     friendResult = FRIEND_NOT_FOUND;
-    friendGuid = 0;
 
     if (result)
     {
         Field* fields = result->Fetch();
 
-        friendGuid = MAKE_NEW_GUID(fields[0].GetUInt32(), 0, HIGHGUID_PLAYER);
+        friendGuid = ObjectGuid(HIGHGUID_PLAYER, 0, fields[0].GetUInt32());
         team = Player::TeamForRace(fields[1].GetUInt8());
         friendAccountId = fields[2].GetUInt32();
 
@@ -617,7 +616,7 @@ void WorldSession::HandleAddFriendOpcodeCallBack(PreparedQueryResult result, std
                     friendResult = FRIEND_SELF;
                 else if (GetPlayer()->GetTeam() != team && !HasPermission(rbac::RBAC_PERM_TWO_SIDE_ADD_FRIEND))
                     friendResult = FRIEND_ENEMY;
-                else if (GetPlayer()->GetSocial()->HasFriend(GUID_LOPART(friendGuid)))
+                else if (GetPlayer()->GetSocial()->HasFriend(friendGuid.GetCounter()))
                     friendResult = FRIEND_ALREADY;
                 else
                 {
@@ -626,33 +625,33 @@ void WorldSession::HandleAddFriendOpcodeCallBack(PreparedQueryResult result, std
                         friendResult = FRIEND_ADDED_ONLINE;
                     else
                         friendResult = FRIEND_ADDED_OFFLINE;
-                    if (!GetPlayer()->GetSocial()->AddToSocialList(GUID_LOPART(friendGuid), false))
+                    if (!GetPlayer()->GetSocial()->AddToSocialList(friendGuid.GetCounter(), false))
                     {
                         friendResult = FRIEND_LIST_FULL;
                         TC_LOG_DEBUG("network", "WORLD: %s's friend list is full.", GetPlayer()->GetName().c_str());
                     }
                 }
-                GetPlayer()->GetSocial()->SetFriendNote(GUID_LOPART(friendGuid), friendNote);
+                GetPlayer()->GetSocial()->SetFriendNote(friendGuid.GetCounter(), friendNote);
             }
         }
     }
 
-    sSocialMgr->SendFriendStatus(GetPlayer(), friendResult, GUID_LOPART(friendGuid), false);
+    sSocialMgr->SendFriendStatus(GetPlayer(), friendResult, friendGuid.GetCounter(), false);
 
     TC_LOG_DEBUG("network", "WORLD: Sent (SMSG_FRIEND_STATUS)");
 }
 
 void WorldSession::HandleDelFriendOpcode(WorldPacket& recvData)
 {
-    uint64 FriendGUID;
+    ObjectGuid FriendGUID;
 
     TC_LOG_DEBUG("network", "WORLD: Received CMSG_DEL_FRIEND");
 
     recvData >> FriendGUID;
 
-    _player->GetSocial()->RemoveFromSocialList(GUID_LOPART(FriendGUID), false);
+    _player->GetSocial()->RemoveFromSocialList(FriendGUID.GetCounter(), false);
 
-    sSocialMgr->SendFriendStatus(GetPlayer(), FRIEND_REMOVED, GUID_LOPART(FriendGUID), false);
+    sSocialMgr->SendFriendStatus(GetPlayer(), FRIEND_REMOVED, FriendGUID.GetCounter(), false);
 
     TC_LOG_DEBUG("network", "WORLD: Sent motd (SMSG_FRIEND_STATUS)");
 }
@@ -683,49 +682,48 @@ void WorldSession::HandleAddIgnoreOpcodeCallBack(PreparedQueryResult result)
     if (!GetPlayer())
         return;
 
-    uint64 IgnoreGuid;
+    ObjectGuid IgnoreGuid;
     FriendsResult ignoreResult;
 
     ignoreResult = FRIEND_IGNORE_NOT_FOUND;
-    IgnoreGuid = 0;
 
     if (result)
     {
-        IgnoreGuid = MAKE_NEW_GUID((*result)[0].GetUInt32(), 0, HIGHGUID_PLAYER);
+        IgnoreGuid = ObjectGuid(HIGHGUID_PLAYER, (*result)[0].GetUInt32());
 
         if (IgnoreGuid)
         {
             if (IgnoreGuid == GetPlayer()->GetGUID())              //not add yourself
                 ignoreResult = FRIEND_IGNORE_SELF;
-            else if (GetPlayer()->GetSocial()->HasIgnore(GUID_LOPART(IgnoreGuid)))
+            else if (GetPlayer()->GetSocial()->HasIgnore(IgnoreGuid.GetCounter()))
                 ignoreResult = FRIEND_IGNORE_ALREADY;
             else
             {
                 ignoreResult = FRIEND_IGNORE_ADDED;
 
                 // ignore list full
-                if (!GetPlayer()->GetSocial()->AddToSocialList(GUID_LOPART(IgnoreGuid), true))
+                if (!GetPlayer()->GetSocial()->AddToSocialList(IgnoreGuid.GetCounter(), true))
                     ignoreResult = FRIEND_IGNORE_FULL;
             }
         }
     }
 
-    sSocialMgr->SendFriendStatus(GetPlayer(), ignoreResult, GUID_LOPART(IgnoreGuid), false);
+    sSocialMgr->SendFriendStatus(GetPlayer(), ignoreResult, IgnoreGuid.GetCounter(), false);
 
     TC_LOG_DEBUG("network", "WORLD: Sent (SMSG_FRIEND_STATUS)");
 }
 
 void WorldSession::HandleDelIgnoreOpcode(WorldPacket& recvData)
 {
-    uint64 IgnoreGUID;
+    ObjectGuid IgnoreGUID;
 
     TC_LOG_DEBUG("network", "WORLD: Received CMSG_DEL_IGNORE");
 
     recvData >> IgnoreGUID;
 
-    _player->GetSocial()->RemoveFromSocialList(GUID_LOPART(IgnoreGUID), true);
+    _player->GetSocial()->RemoveFromSocialList(IgnoreGUID.GetCounter(), true);
 
-    sSocialMgr->SendFriendStatus(GetPlayer(), FRIEND_IGNORE_REMOVED, GUID_LOPART(IgnoreGUID), false);
+    sSocialMgr->SendFriendStatus(GetPlayer(), FRIEND_IGNORE_REMOVED, IgnoreGUID.GetCounter(), false);
 
     TC_LOG_DEBUG("network", "WORLD: Sent motd (SMSG_FRIEND_STATUS)");
 }
@@ -733,10 +731,10 @@ void WorldSession::HandleDelIgnoreOpcode(WorldPacket& recvData)
 void WorldSession::HandleSetContactNotesOpcode(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "CMSG_SET_CONTACT_NOTES");
-    uint64 guid;
+    ObjectGuid guid;
     std::string note;
     recvData >> guid >> note;
-    _player->GetSocial()->SetFriendNote(GUID_LOPART(guid), note);
+    _player->GetSocial()->SetFriendNote(guid.GetCounter(), note);
 }
 
 void WorldSession::HandleBugOpcode(WorldPacket& recvData)
@@ -770,7 +768,7 @@ void WorldSession::HandleReclaimCorpseOpcode(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: Received CMSG_RECLAIM_CORPSE");
 
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
 
     if (_player->IsAlive())
@@ -807,7 +805,7 @@ void WorldSession::HandleResurrectResponseOpcode(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: Received CMSG_RESURRECT_RESPONSE");
 
-    uint64 guid;
+    ObjectGuid guid;
     uint8 status;
     recvData >> guid;
     recvData >> status;
@@ -946,10 +944,7 @@ void WorldSession::HandleAreaTriggerOpcode(WorldPacket& recvData)
 
     if (Battleground* bg = player->GetBattleground())
         if (bg->GetStatus() == STATUS_IN_PROGRESS)
-        {
             bg->HandleAreaTrigger(player, triggerId);
-            return;
-        }
 
     if (OutdoorPvP* pvp = player->GetOutdoorPvP())
         if (pvp->HandleAreaTrigger(_player, triggerId))
@@ -1059,7 +1054,7 @@ void WorldSession::HandleRequestAccountData(WorldPacket& recvData)
     dest.resize(destSize);
 
     WorldPacket data(SMSG_UPDATE_ACCOUNT_DATA, 8+4+4+4+destSize);
-    data << uint64(_player ? _player->GetGUID() : 0);       // player guid
+    data << uint64(_player ? _player->GetGUID() : ObjectGuid::Empty);
     data << uint32(type);                                   // type (0-7)
     data << uint32(adata->Time);                            // unix time
     data << uint32(size);                                   // decompressed length
@@ -1227,7 +1222,7 @@ void WorldSession::HandlePlayedTime(WorldPacket& recvData)
 
 void WorldSession::HandleInspectOpcode(WorldPacket& recvData)
 {
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
 
     TC_LOG_DEBUG("network", "WORLD: Received CMSG_INSPECT");
@@ -1235,7 +1230,7 @@ void WorldSession::HandleInspectOpcode(WorldPacket& recvData)
     Player* player = ObjectAccessor::FindPlayer(guid);
     if (!player)
     {
-        TC_LOG_DEBUG("network", "CMSG_INSPECT: No player found from GUID: " UI64FMTD, guid);
+        TC_LOG_DEBUG("network", "CMSG_INSPECT: No player found from %s", guid.ToString().c_str());
         return;
     }
 
@@ -1292,7 +1287,7 @@ void WorldSession::HandleInspectHonorStatsOpcode(WorldPacket& recvData)
     Player* player = ObjectAccessor::FindPlayer(guid);
     if (!player)
     {
-        TC_LOG_DEBUG("network", "CMSG_INSPECT_HONOR_STATS: No player found from GUID: " UI64FMTD, (uint64)guid);
+        TC_LOG_DEBUG("network", "CMSG_INSPECT_HONOR_STATS: No player found from %s", guid.ToString().c_str());
         return;
     }
 
@@ -1427,7 +1422,7 @@ void WorldSession::HandleComplainOpcode(WorldPacket& recvData)
     TC_LOG_DEBUG("network", "WORLD: CMSG_COMPLAIN");
 
     uint8 spam_type;                                        // 0 - mail, 1 - chat
-    uint64 spammer_guid;
+    ObjectGuid spammer_guid;
     uint32 unk1 = 0;
     uint32 unk2 = 0;
     uint32 unk3 = 0;
@@ -1460,7 +1455,8 @@ void WorldSession::HandleComplainOpcode(WorldPacket& recvData)
     data << uint8(0); // value 0xC generates a "CalendarError" in client.
     SendPacket(&data);
 
-    TC_LOG_DEBUG("network", "REPORT SPAM: type %u, guid %u, unk1 %u, unk2 %u, unk3 %u, unk4 %u, message %s", spam_type, GUID_LOPART(spammer_guid), unk1, unk2, unk3, unk4, description.c_str());
+    TC_LOG_DEBUG("network", "REPORT SPAM: type %u, %s, unk1 %u, unk2 %u, unk3 %u, unk4 %u, message %s",
+        spam_type, spammer_guid.ToString().c_str(), unk1, unk2, unk3, unk4, description.c_str());
 }
 
 void WorldSession::HandleRealmSplitOpcode(WorldPacket& recvData)
@@ -1492,11 +1488,11 @@ void WorldSession::HandleFarSightOpcode(WorldPacket& recvData)
 
     if (apply)
     {
-        TC_LOG_DEBUG("network", "Added FarSight " UI64FMTD " to player %u", _player->GetUInt64Value(PLAYER_FARSIGHT), _player->GetGUIDLow());
+        TC_LOG_DEBUG("network", "Added FarSight %s to player %u", _player->GetGuidValue(PLAYER_FARSIGHT).ToString().c_str(), _player->GetGUIDLow());
         if (WorldObject* target = _player->GetViewpoint())
             _player->SetSeer(target);
         else
-            TC_LOG_ERROR("network", "Player %s (GUID: %u) requests non-existing seer " UI64FMTD, _player->GetName().c_str(), GUID_LOPART(_player->GetGUID()), _player->GetUInt64Value(PLAYER_FARSIGHT));
+            TC_LOG_ERROR("network", "Player %s (%s) requests non-existing seer %s", _player->GetName().c_str(), _player->GetGUID().ToString().c_str(), _player->GetGuidValue(PLAYER_FARSIGHT).ToString().c_str());
     }
     else
     {
@@ -1729,10 +1725,10 @@ void WorldSession::HandleSetTaxiBenchmarkOpcode(WorldPacket& recvData)
 
 void WorldSession::HandleQueryInspectAchievements(WorldPacket& recvData)
 {
-    uint64 guid;
-    recvData.readPackGUID(guid);
+    ObjectGuid guid;
+    recvData >> guid.ReadAsPacked();
 
-    TC_LOG_DEBUG("network", "CMSG_QUERY_INSPECT_ACHIEVEMENTS [" UI64FMTD "] Inspected Player [" UI64FMTD "]", _player->GetGUID(), guid);
+    TC_LOG_DEBUG("network", "CMSG_QUERY_INSPECT_ACHIEVEMENTS [%s] Inspected Player [%s]", _player->GetGUID().ToString().c_str(), guid.ToString().c_str());
     Player* player = ObjectAccessor::FindPlayer(guid);
     if (!player)
         return;
@@ -1828,7 +1824,7 @@ void WorldSession::HandleAreaSpiritHealerQueryOpcode(WorldPacket& recvData)
 
     Battleground* bg = _player->GetBattleground();
 
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
 
     Creature* unit = GetPlayer()->GetMap()->GetCreature(guid);
@@ -1851,7 +1847,7 @@ void WorldSession::HandleAreaSpiritHealerQueueOpcode(WorldPacket& recvData)
 
     Battleground* bg = _player->GetBattleground();
 
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
 
     Creature* unit = GetPlayer()->GetMap()->GetCreature(guid);
@@ -1980,7 +1976,7 @@ void WorldSession::HandleUpdateMissileTrajectory(WorldPacket& recvPacket)
 {
     TC_LOG_DEBUG("network", "WORLD: CMSG_UPDATE_MISSILE_TRAJECTORY");
 
-    uint64 guid;
+    ObjectGuid guid;
     uint32 spellId;
     float elevation, speed;
     float curX, curY, curZ;
diff --git a/src/server/game/Handlers/MovementHandler.cpp b/src/server/game/Handlers/MovementHandler.cpp
index 139be4e9d4c..7eb8744c658 100644
--- a/src/server/game/Handlers/MovementHandler.cpp
+++ b/src/server/game/Handlers/MovementHandler.cpp
@@ -72,7 +72,7 @@ void WorldSession::HandleMoveWorldportAckOpcode()
 
     if (GetPlayer()->IsInWorld())
     {
-        TC_LOG_ERROR("network", "Player %s (GUID: %u) is still in world when teleported from map %s (%u) to new map %s (%u)", GetPlayer()->GetName().c_str(), GUID_LOPART(GetPlayer()->GetGUID()), oldMap->GetMapName(), oldMap->GetId(), newMap ? newMap->GetMapName() : "Unknown", loc.GetMapId());
+        TC_LOG_ERROR("network", "%s %s is still in world when teleported from map %s (%u) to new map %s (%u)", GetPlayer()->GetGUID().ToString().c_str(), GetPlayer()->GetName().c_str(), oldMap->GetMapName(), oldMap->GetId(), newMap ? newMap->GetMapName() : "Unknown", loc.GetMapId());
         oldMap->RemovePlayerFromMap(GetPlayer(), false);
     }
 
@@ -341,7 +341,7 @@ void WorldSession::HandleMovementOpcodes(WorldPacket& recvPacket)
         {
             GameObject* go = mover->GetMap()->GetGameObject(movementInfo.transport.guid);
             if (!go || go->GetGoType() != GAMEOBJECT_TYPE_TRANSPORT)
-                movementInfo.transport.guid = 0;
+                movementInfo.transport.guid.Clear();
         }
     }
     else if (plrMover && plrMover->GetTransport())                // if we were on a transport, leave
@@ -423,8 +423,6 @@ void WorldSession::HandleMovementOpcodes(WorldPacket& recvPacket)
 
 void WorldSession::HandleForceSpeedChangeAck(WorldPacket &recvData)
 {
-    uint32 opcode = recvData.GetOpcode();
-
     /* extract packet */
     MovementInfo movementInfo;
     static MovementStatusElements const speedElement = MSEExtraFloat;
@@ -458,7 +456,7 @@ void WorldSession::HandleForceSpeedChangeAck(WorldPacket &recvData)
         "PitchRate"
     };
 
-    switch (opcode)
+    switch (recvData.GetOpcode())
     {
         case CMSG_MOVE_FORCE_WALK_SPEED_CHANGE_ACK:        move_type = MOVE_WALK;        break;
         case CMSG_MOVE_FORCE_RUN_SPEED_CHANGE_ACK:         move_type = MOVE_RUN;         break;
@@ -470,7 +468,7 @@ void WorldSession::HandleForceSpeedChangeAck(WorldPacket &recvData)
         case CMSG_MOVE_FORCE_FLIGHT_BACK_SPEED_CHANGE_ACK: move_type = MOVE_FLIGHT_BACK; break;
         case CMSG_MOVE_FORCE_PITCH_RATE_CHANGE_ACK:        move_type = MOVE_PITCH_RATE;  break;
         default:
-            TC_LOG_ERROR("network", "WorldSession::HandleForceSpeedChangeAck: Unknown move type opcode: %u", opcode);
+            TC_LOG_ERROR("network", "WorldSession::HandleForceSpeedChangeAck: Unknown move type opcode: %u", recvData.GetOpcode());
             return;
     }
 
@@ -525,10 +523,8 @@ void WorldSession::HandleSetActiveMoverOpcode(WorldPacket& recvPacket)
     recvPacket.ReadByteSeq(guid[7]);
 
     if (GetPlayer()->IsInWorld())
-    {
         if (_player->m_mover->GetGUID() != guid)
-            TC_LOG_DEBUG("network", "HandleSetActiveMoverOpcode: incorrect mover guid: mover is " UI64FMTD " (%s - Entry: %u) and should be " UI64FMTD, uint64(guid), GetLogNameForGuid(guid), GUID_ENPART(guid), _player->m_mover->GetGUID());
-    }
+            TC_LOG_DEBUG("network", "HandleSetActiveMoverOpcode: incorrect mover guid: mover is %s and should be %s" , guid.ToString().c_str(), _player->m_mover->GetGUID().ToString().c_str());
 }
 
 void WorldSession::HandleMoveNotActiveMover(WorldPacket &recvData)
@@ -569,30 +565,30 @@ void WorldSession::HandleMoveHoverAck(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "CMSG_MOVE_HOVER_ACK");
 
-    uint64 guid;                                            // guid - unused
-    recvData.readPackGUID(guid);
+    ObjectGuid guid;                                        // guid - unused
+    recvData >> guid.ReadAsPacked();
 
-    recvData.read_skip<uint32>();                          // unk
+    recvData.read_skip<uint32>();                           // unk
 
     MovementInfo movementInfo;
     GetPlayer()->ReadMovementInfo(recvData, &movementInfo);
 
-    recvData.read_skip<uint32>();                          // unk2
+    recvData.read_skip<uint32>();                           // unk2
 }
 
 void WorldSession::HandleMoveWaterWalkAck(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "CMSG_MOVE_WATER_WALK_ACK");
 
-    uint64 guid;                                            // guid - unused
-    recvData.readPackGUID(guid);
+    ObjectGuid guid;                                        // guid - unused
+    recvData >> guid.ReadAsPacked();
 
-    recvData.read_skip<uint32>();                          // unk
+    recvData.read_skip<uint32>();                           // unk
 
     MovementInfo movementInfo;
     GetPlayer()->ReadMovementInfo(recvData, &movementInfo);
 
-    recvData.read_skip<uint32>();                          // unk2
+    recvData.read_skip<uint32>();                           // unk2
 }
 
 void WorldSession::HandleSummonResponseOpcode(WorldPacket& recvData)
@@ -600,9 +596,9 @@ void WorldSession::HandleSummonResponseOpcode(WorldPacket& recvData)
     if (!_player->IsAlive() || _player->IsInCombat())
         return;
 
-    uint64 summonerGuid;
+    ObjectGuid summoner_guid;
     bool agree;
-    recvData >> summonerGuid;
+    recvData >> summoner_guid;
     recvData >> agree;
 
     _player->SummonIfPossible(agree);
diff --git a/src/server/game/Handlers/NPCHandler.cpp b/src/server/game/Handlers/NPCHandler.cpp
index 02651a1af09..6e4ae69c7b9 100644
--- a/src/server/game/Handlers/NPCHandler.cpp
+++ b/src/server/game/Handlers/NPCHandler.cpp
@@ -51,13 +51,13 @@ enum StableResultCode
 
 void WorldSession::HandleTabardVendorActivateOpcode(WorldPacket& recvData)
 {
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
 
     Creature* unit = GetPlayer()->GetNPCIfCanInteractWith(guid, UNIT_NPC_FLAG_TABARDDESIGNER);
     if (!unit)
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleTabardVendorActivateOpcode - Unit (GUID: %u) not found or you can not interact with him.", uint32(GUID_LOPART(guid)));
+        TC_LOG_DEBUG("network", "WORLD: HandleTabardVendorActivateOpcode - %s not found or you can not interact with him.", guid.ToString().c_str());
         return;
     }
 
@@ -68,7 +68,7 @@ void WorldSession::HandleTabardVendorActivateOpcode(WorldPacket& recvData)
     SendTabardVendorActivate(guid);
 }
 
-void WorldSession::SendTabardVendorActivate(uint64 guid)
+void WorldSession::SendTabardVendorActivate(ObjectGuid guid)
 {
     WorldPacket data(MSG_TABARDVENDOR_ACTIVATE, 8);
     data << guid;
@@ -77,7 +77,7 @@ void WorldSession::SendTabardVendorActivate(uint64 guid)
 
 void WorldSession::HandleBankerActivateOpcode(WorldPacket& recvData)
 {
-    uint64 guid;
+    ObjectGuid guid;
 
     TC_LOG_DEBUG("network", "WORLD: Received CMSG_BANKER_ACTIVATE");
 
@@ -86,7 +86,7 @@ void WorldSession::HandleBankerActivateOpcode(WorldPacket& recvData)
     Creature* unit = GetPlayer()->GetNPCIfCanInteractWith(guid, UNIT_NPC_FLAG_BANKER);
     if (!unit)
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleBankerActivateOpcode - Unit (GUID: %u) not found or you can not interact with him.", uint32(GUID_LOPART(guid)));
+        TC_LOG_DEBUG("network", "WORLD: HandleBankerActivateOpcode - %s not found or you can not interact with him.", guid.ToString().c_str());
         return;
     }
 
@@ -97,7 +97,7 @@ void WorldSession::HandleBankerActivateOpcode(WorldPacket& recvData)
     SendShowBank(guid);
 }
 
-void WorldSession::SendShowBank(uint64 guid)
+void WorldSession::SendShowBank(ObjectGuid guid)
 {
     WorldPacket data(SMSG_SHOW_BANK, 8);
     data << guid;
@@ -105,28 +105,35 @@ void WorldSession::SendShowBank(uint64 guid)
     SendPacket(&data);
 }
 
+void WorldSession::SendShowMailBox(ObjectGuid guid)
+{
+    WorldPacket data(SMSG_SHOW_MAILBOX, 8);
+    data << guid;
+    SendPacket(&data);
+}
+
 void WorldSession::HandleTrainerListOpcode(WorldPacket& recvData)
 {
-    uint64 guid;
+    ObjectGuid guid;
 
     recvData >> guid;
     SendTrainerList(guid);
 }
 
-void WorldSession::SendTrainerList(uint64 guid)
+void WorldSession::SendTrainerList(ObjectGuid guid)
 {
     std::string str = GetTrinityString(LANG_NPC_TAINER_HELLO);
     SendTrainerList(guid, str);
 }
 
-void WorldSession::SendTrainerList(uint64 guid, const std::string& strTitle)
+void WorldSession::SendTrainerList(ObjectGuid guid, const std::string& strTitle)
 {
     TC_LOG_DEBUG("network", "WORLD: SendTrainerList");
 
     Creature* unit = GetPlayer()->GetNPCIfCanInteractWith(guid, UNIT_NPC_FLAG_TRAINER);
     if (!unit)
     {
-        TC_LOG_DEBUG("network", "WORLD: SendTrainerList - Unit (GUID: %u) not found or you can not interact with him.", uint32(GUID_LOPART(guid)));
+        TC_LOG_DEBUG("network", "WORLD: SendTrainerList - %s not found or you can not interact with him.", guid.ToString().c_str());
         return;
     }
 
@@ -134,19 +141,10 @@ void WorldSession::SendTrainerList(uint64 guid, const std::string& strTitle)
     if (GetPlayer()->HasUnitState(UNIT_STATE_DIED))
         GetPlayer()->RemoveAurasByType(SPELL_AURA_FEIGN_DEATH);
 
-    CreatureTemplate const* ci = unit->GetCreatureTemplate();
-
-    if (!ci)
-    {
-        TC_LOG_DEBUG("network", "WORLD: SendTrainerList - (GUID: %u) NO CREATUREINFO!", GUID_LOPART(guid));
-        return;
-    }
-
     TrainerSpellData const* trainer_spells = unit->GetTrainerSpells();
     if (!trainer_spells)
     {
-        TC_LOG_DEBUG("network", "WORLD: SendTrainerList - Training spells not found for creature (GUID: %u Entry: %u)",
-            GUID_LOPART(guid), unit->GetEntry());
+        TC_LOG_DEBUG("network", "WORLD: SendTrainerList - Training spells not found for %s", guid.ToString().c_str());
         return;
     }
 
@@ -237,17 +235,17 @@ void WorldSession::SendTrainerList(uint64 guid, const std::string& strTitle)
 
 void WorldSession::HandleTrainerBuySpellOpcode(WorldPacket& recvData)
 {
-    uint64 guid;
+    ObjectGuid guid;
     uint32 spellId;
     uint32 trainerId;
 
     recvData >> guid >> trainerId >> spellId;
-    TC_LOG_DEBUG("network", "WORLD: Received CMSG_TRAINER_BUY_SPELL NpcGUID=%u, learn spell id is: %u", uint32(GUID_LOPART(guid)), spellId);
+    TC_LOG_DEBUG("network", "WORLD: Received CMSG_TRAINER_BUY_SPELL %s, learn spell id is: %u", guid.ToString().c_str(), spellId);
 
     Creature* unit = GetPlayer()->GetNPCIfCanInteractWith(guid, UNIT_NPC_FLAG_TRAINER);
     if (!unit)
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleTrainerBuySpellOpcode - Unit (GUID: %u) not found or you can not interact with him.", uint32(GUID_LOPART(guid)));
+        TC_LOG_DEBUG("network", "WORLD: HandleTrainerBuySpellOpcode - %s not found or you can not interact with him.", guid.ToString().c_str());
         return;
     }
 
@@ -318,13 +316,13 @@ void WorldSession::HandleGossipHelloOpcode(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: Received CMSG_GOSSIP_HELLO");
 
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
 
     Creature* unit = GetPlayer()->GetNPCIfCanInteractWith(guid, UNIT_NPC_FLAG_NONE);
     if (!unit)
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleGossipHelloOpcode - Unit (GUID: %u) not found or you can not interact with him.", uint32(GUID_LOPART(guid)));
+        TC_LOG_DEBUG("network", "WORLD: HandleGossipHelloOpcode - %s not found or you can not interact with him.", guid.ToString().c_str());
         return;
     }
 
@@ -406,13 +404,13 @@ void WorldSession::HandleSpiritHealerActivateOpcode(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: CMSG_SPIRIT_HEALER_ACTIVATE");
 
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
 
     Creature* unit = GetPlayer()->GetNPCIfCanInteractWith(guid, UNIT_NPC_FLAG_SPIRITHEALER);
     if (!unit)
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleSpiritHealerActivateOpcode - Unit (GUID: %u) not found or you can not interact with him.", uint32(GUID_LOPART(guid)));
+        TC_LOG_DEBUG("network", "WORLD: HandleSpiritHealerActivateOpcode - %s not found or you can not interact with him.", guid.ToString().c_str());
         return;
     }
 
@@ -457,7 +455,7 @@ void WorldSession::SendSpiritResurrect()
 
 void WorldSession::HandleBinderActivateOpcode(WorldPacket& recvData)
 {
-    uint64 npcGUID;
+    ObjectGuid npcGUID;
     recvData >> npcGUID;
 
     if (!GetPlayer()->IsInWorld() || !GetPlayer()->IsAlive())
@@ -466,7 +464,7 @@ void WorldSession::HandleBinderActivateOpcode(WorldPacket& recvData)
     Creature* unit = GetPlayer()->GetNPCIfCanInteractWith(npcGUID, UNIT_NPC_FLAG_INNKEEPER);
     if (!unit)
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleBinderActivateOpcode - Unit (GUID: %u) not found or you can not interact with him.", uint32(GUID_LOPART(npcGUID)));
+        TC_LOG_DEBUG("network", "WORLD: HandleBinderActivateOpcode - %s not found or you can not interact with him.", npcGUID.ToString().c_str());
         return;
     }
 
@@ -499,7 +497,7 @@ void WorldSession::SendBindPoint(Creature* npc)
 void WorldSession::HandleListStabledPetsOpcode(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: Recv MSG_LIST_STABLED_PETS");
-    uint64 npcGUID;
+    ObjectGuid npcGUID;
 
     recvData >> npcGUID;
 
@@ -517,7 +515,7 @@ void WorldSession::HandleListStabledPetsOpcode(WorldPacket& recvData)
     SendStablePet(npcGUID);
 }
 
-void WorldSession::SendStablePet(uint64 guid)
+void WorldSession::SendStablePet(ObjectGuid guid)
 {
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_PET_SLOTS_DETAIL);
 
@@ -529,7 +527,7 @@ void WorldSession::SendStablePet(uint64 guid)
     _sendStabledPetCallback.SetFutureResult(CharacterDatabase.AsyncQuery(stmt));
 }
 
-void WorldSession::SendStablePetCallback(PreparedQueryResult result, uint64 guid)
+void WorldSession::SendStablePetCallback(PreparedQueryResult result, ObjectGuid guid)
 {
     if (!GetPlayer())
         return;
@@ -538,7 +536,7 @@ void WorldSession::SendStablePetCallback(PreparedQueryResult result, uint64 guid
 
     WorldPacket data(MSG_LIST_STABLED_PETS, 200);           // guess size
 
-    data << uint64 (guid);
+    data << uint64(guid);
 
     Pet* pet = _player->GetPet();
 
@@ -594,7 +592,7 @@ void WorldSession::SendStableResult(uint8 res)
 void WorldSession::HandleStablePet(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: Recv CMSG_STABLE_PET");
-    uint64 npcGUID;
+    ObjectGuid npcGUID;
 
     recvData >> npcGUID;
 
@@ -668,7 +666,7 @@ void WorldSession::HandleStablePetCallback(PreparedQueryResult result)
 void WorldSession::HandleUnstablePet(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: Recv CMSG_UNSTABLE_PET.");
-    uint64 npcGUID;
+    ObjectGuid npcGUID;
     uint32 petnumber;
 
     recvData >> npcGUID >> petnumber;
@@ -749,7 +747,7 @@ void WorldSession::HandleUnstablePetCallback(PreparedQueryResult result, uint32
 void WorldSession::HandleBuyStableSlot(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: Recv CMSG_BUY_STABLE_SLOT.");
-    uint64 npcGUID;
+    ObjectGuid npcGUID;
 
     recvData >> npcGUID;
 
@@ -787,7 +785,7 @@ void WorldSession::HandleStableRevivePet(WorldPacket &/* recvData */)
 void WorldSession::HandleStableSwapPet(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: Recv CMSG_STABLE_SWAP_PET.");
-    uint64 npcGUID;
+    ObjectGuid npcGUID;
     uint32 petId;
 
     recvData >> npcGUID >> petId;
@@ -882,7 +880,7 @@ void WorldSession::HandleRepairItemOpcode(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: CMSG_REPAIR_ITEM");
 
-    uint64 npcGUID, itemGUID;
+    ObjectGuid npcGUID, itemGUID;
     uint8 guildBank;                                        // new in 2.3.2, bool that means from guild bank money
 
     recvData >> npcGUID >> itemGUID >> guildBank;
@@ -890,7 +888,7 @@ void WorldSession::HandleRepairItemOpcode(WorldPacket& recvData)
     Creature* unit = GetPlayer()->GetNPCIfCanInteractWith(npcGUID, UNIT_NPC_FLAG_REPAIR);
     if (!unit)
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleRepairItemOpcode - Unit (GUID: %u) not found or you can not interact with him.", uint32(GUID_LOPART(npcGUID)));
+        TC_LOG_DEBUG("network", "WORLD: HandleRepairItemOpcode - %s not found or you can not interact with him.", npcGUID.ToString().c_str());
         return;
     }
 
@@ -903,7 +901,7 @@ void WorldSession::HandleRepairItemOpcode(WorldPacket& recvData)
 
     if (itemGUID)
     {
-        TC_LOG_DEBUG("network", "ITEM: Repair item, itemGUID = %u, npcGUID = %u", GUID_LOPART(itemGUID), GUID_LOPART(npcGUID));
+        TC_LOG_DEBUG("network", "ITEM: Repair %s, at %s", itemGUID.ToString().c_str(), npcGUID.ToString().c_str());
 
         Item* item = _player->GetItemByGuid(itemGUID);
         if (item)
@@ -911,7 +909,7 @@ void WorldSession::HandleRepairItemOpcode(WorldPacket& recvData)
     }
     else
     {
-        TC_LOG_DEBUG("network", "ITEM: Repair all items, npcGUID = %u", GUID_LOPART(npcGUID));
+        TC_LOG_DEBUG("network", "ITEM: Repair all items at %s", npcGUID.ToString().c_str());
         _player->DurabilityRepairAll(true, discountMod, guildBank != 0);
     }
 }
diff --git a/src/server/game/Handlers/PetHandler.cpp b/src/server/game/Handlers/PetHandler.cpp
index f3dc24a8c01..d03d57e49e0 100644
--- a/src/server/game/Handlers/PetHandler.cpp
+++ b/src/server/game/Handlers/PetHandler.cpp
@@ -35,17 +35,17 @@
 
 void WorldSession::HandleDismissCritter(WorldPacket& recvData)
 {
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
 
-    TC_LOG_DEBUG("network", "WORLD: Received CMSG_DISMISS_CRITTER for GUID " UI64FMTD, guid);
+    TC_LOG_DEBUG("network", "WORLD: Received CMSG_DISMISS_CRITTER for %s", guid.ToString().c_str());
 
     Unit* pet = ObjectAccessor::GetCreatureOrPetOrVehicle(*_player, guid);
 
     if (!pet)
     {
-        TC_LOG_DEBUG("network", "Vanitypet (guid: %u) does not exist - player '%s' (guid: %u / account: %u) attempted to dismiss it (possibly lagged out)",
-            uint32(GUID_LOPART(guid)), GetPlayer()->GetName().c_str(), GetPlayer()->GetGUIDLow(), GetAccountId());
+        TC_LOG_DEBUG("network", "Vanitypet (%s) does not exist - player '%s' (guid: %u / account: %u) attempted to dismiss it (possibly lagged out)",
+            guid.ToString().c_str(), GetPlayer()->GetName().c_str(), GetPlayer()->GetGUIDLow(), GetAccountId());
         return;
     }
 
@@ -58,9 +58,9 @@ void WorldSession::HandleDismissCritter(WorldPacket& recvData)
 
 void WorldSession::HandlePetAction(WorldPacket& recvData)
 {
-    uint64 guid1;
+    ObjectGuid guid1;
     uint32 data;
-    uint64 guid2;
+    ObjectGuid guid2;
     float x, y, z;
     recvData >> guid1;                                     //pet guid
     recvData >> data;
@@ -74,18 +74,18 @@ void WorldSession::HandlePetAction(WorldPacket& recvData)
     uint8 flag = UNIT_ACTION_BUTTON_TYPE(data);             //delete = 0x07 CastSpell = C1
 
     // used also for charmed creature
-    Unit* pet= ObjectAccessor::GetUnit(*_player, guid1);
-    TC_LOG_INFO("network", "HandlePetAction: Pet %u - flag: %u, spellid: %u, target: %u.", uint32(GUID_LOPART(guid1)), uint32(flag), spellid, uint32(GUID_LOPART(guid2)));
+    Unit* pet = ObjectAccessor::GetUnit(*_player, guid1);
+    TC_LOG_INFO("network", "HandlePetAction: %s - flag: %u, spellid: %u, target: %s.", guid1.ToString().c_str(), uint32(flag), spellid, guid2.ToString().c_str());
 
     if (!pet)
     {
-        TC_LOG_DEBUG("network", "HandlePetAction: Pet (GUID: %u) doesn't exist for player %s (GUID: %u)", uint32(GUID_LOPART(guid1)), GetPlayer()->GetName().c_str(), GUID_LOPART(GetPlayer()->GetGUID()));
+        TC_LOG_DEBUG("network", "HandlePetAction: %s doesn't exist for %s %s", guid1.ToString().c_str(), GetPlayer()->GetGUID().ToString().c_str(), GetPlayer()->GetName().c_str());
         return;
     }
 
     if (pet != GetPlayer()->GetFirstControlled())
     {
-        TC_LOG_DEBUG("network", "HandlePetAction: Pet (GUID: %u) does not belong to player %s (GUID: %u)", uint32(GUID_LOPART(guid1)), GetPlayer()->GetName().c_str(), GUID_LOPART(GetPlayer()->GetGUID()));
+        TC_LOG_DEBUG("network", "HandlePetAction: %s does not belong to %s %s", guid1.ToString().c_str(), GetPlayer()->GetGUID().ToString().c_str(), GetPlayer()->GetName().c_str());
         return;
     }
 
@@ -118,23 +118,23 @@ void WorldSession::HandlePetAction(WorldPacket& recvData)
 
 void WorldSession::HandlePetStopAttack(WorldPacket &recvData)
 {
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
 
-    TC_LOG_DEBUG("network", "WORLD: Received CMSG_PET_STOP_ATTACK for GUID " UI64FMTD "", guid);
+    TC_LOG_DEBUG("network", "WORLD: Received CMSG_PET_STOP_ATTACK for %s", guid.ToString().c_str());
 
     Unit* pet = ObjectAccessor::GetCreatureOrPetOrVehicle(*_player, guid);
 
     if (!pet)
     {
-        TC_LOG_ERROR("network", "HandlePetStopAttack: Pet %u does not exist", uint32(GUID_LOPART(guid)));
+        TC_LOG_ERROR("network", "HandlePetStopAttack: %s does not exist", guid.ToString().c_str());
         return;
     }
 
     if (pet != GetPlayer()->GetPet() && pet != GetPlayer()->GetCharm())
     {
-        TC_LOG_ERROR("network", "HandlePetStopAttack: Pet GUID %u isn't a pet or charmed creature of player %s",
-            uint32(GUID_LOPART(guid)), GetPlayer()->GetName().c_str());
+        TC_LOG_ERROR("network", "HandlePetStopAttack: %s isn't a pet or charmed creature of player %s",
+            guid.ToString().c_str(), GetPlayer()->GetName().c_str());
         return;
     }
 
@@ -144,13 +144,13 @@ void WorldSession::HandlePetStopAttack(WorldPacket &recvData)
     pet->AttackStop();
 }
 
-void WorldSession::HandlePetActionHelper(Unit* pet, uint64 guid1, uint32 spellid, uint16 flag, uint64 guid2, float x, float y, float z)
+void WorldSession::HandlePetActionHelper(Unit* pet, ObjectGuid guid1, uint32 spellid, uint16 flag, ObjectGuid guid2, float x, float y, float z)
 {
     CharmInfo* charmInfo = pet->GetCharmInfo();
     if (!charmInfo)
     {
-        TC_LOG_DEBUG("network", "WorldSession::HandlePetAction(petGuid: " UI64FMTD ", tagGuid: " UI64FMTD ", spellId: %u, flag: %u): object (GUID: %u Entry: %u TypeId: %u) is considered pet-like but doesn't have a charminfo!",
-            guid1, guid2, spellid, flag, pet->GetGUIDLow(), pet->GetEntry(), pet->GetTypeId());
+        TC_LOG_DEBUG("network", "WorldSession::HandlePetAction(petGuid: %s, tagGuid: %s, spellId: %u, flag: %u): object (GUID: %u Entry: %u TypeId: %u) is considered pet-like but doesn't have a charminfo!",
+            guid1.ToString().c_str(), guid2.ToString().c_str(), spellid, flag, pet->GetGUIDLow(), pet->GetEntry(), pet->GetTypeId());
         return;
     }
 
@@ -287,7 +287,7 @@ void WorldSession::HandlePetActionHelper(Unit* pet, uint64 guid1, uint32 spellid
             {
                 case REACT_PASSIVE:                         //passive
                     pet->AttackStop();
-
+                    // no break;
                 case REACT_DEFENSIVE:                       //recovery
                 case REACT_AGGRESSIVE:                      //activete
                     if (pet->GetTypeId() == TYPEID_UNIT)
@@ -418,7 +418,7 @@ void WorldSession::HandlePetNameQuery(WorldPacket& recvData)
     TC_LOG_INFO("network", "HandlePetNameQuery. CMSG_PET_NAME_QUERY");
 
     uint32 petnumber;
-    uint64 petguid;
+    ObjectGuid petguid;
 
     recvData >> petnumber;
     recvData >> petguid;
@@ -426,7 +426,7 @@ void WorldSession::HandlePetNameQuery(WorldPacket& recvData)
     SendPetNameQuery(petguid, petnumber);
 }
 
-void WorldSession::SendPetNameQuery(uint64 petguid, uint32 petnumber)
+void WorldSession::SendPetNameQuery(ObjectGuid petguid, uint32 petnumber)
 {
     Creature* pet = ObjectAccessor::GetCreatureOrPetOrVehicle(*_player, petguid);
     if (!pet)
@@ -457,14 +457,14 @@ void WorldSession::SendPetNameQuery(uint64 petguid, uint32 petnumber)
     _player->GetSession()->SendPacket(&data);
 }
 
-bool WorldSession::CheckStableMaster(uint64 guid)
+bool WorldSession::CheckStableMaster(ObjectGuid guid)
 {
     // spell case or GM
     if (guid == GetPlayer()->GetGUID())
     {
         if (!GetPlayer()->IsGameMaster() && !GetPlayer()->HasAuraType(SPELL_AURA_OPEN_STABLE))
         {
-            TC_LOG_DEBUG("network", "Player (GUID:%u) attempt open stable in cheating way.", GUID_LOPART(guid));
+            TC_LOG_DEBUG("network", "%s attempt open stable in cheating way.", guid.ToString().c_str());
             return false;
         }
     }
@@ -473,7 +473,7 @@ bool WorldSession::CheckStableMaster(uint64 guid)
     {
         if (!GetPlayer()->GetNPCIfCanInteractWith(guid, UNIT_NPC_FLAG_STABLEMASTER))
         {
-            TC_LOG_DEBUG("network", "Stablemaster (GUID:%u) not found or you can't interact with him.", GUID_LOPART(guid));
+            TC_LOG_DEBUG("network", "Stablemaster %s not found or you can't interact with him.", guid.ToString().c_str());
             return false;
         }
     }
@@ -484,7 +484,7 @@ void WorldSession::HandlePetSetAction(WorldPacket& recvData)
 {
     TC_LOG_INFO("network", "HandlePetSetAction. CMSG_PET_SET_ACTION");
 
-    uint64 petguid;
+    ObjectGuid petguid;
     uint8  count;
 
     recvData >> petguid;
@@ -493,7 +493,7 @@ void WorldSession::HandlePetSetAction(WorldPacket& recvData)
 
     if (!pet || pet != _player->GetFirstControlled())
     {
-        TC_LOG_ERROR("network", "HandlePetSetAction: Unknown pet (GUID: %u) or pet owner (GUID: %u)", GUID_LOPART(petguid), _player->GetGUIDLow());
+        TC_LOG_ERROR("network", "HandlePetSetAction: Unknown %s or owner (%s)", petguid.ToString().c_str(), _player->GetGUID().ToString().c_str());
         return;
     }
 
@@ -601,7 +601,7 @@ void WorldSession::HandlePetRename(WorldPacket& recvData)
 {
     TC_LOG_INFO("network", "HandlePetRename. CMSG_PET_RENAME");
 
-    uint64 petguid;
+    ObjectGuid petguid;
     uint8 isdeclined;
 
     std::string name;
@@ -667,7 +667,7 @@ void WorldSession::HandlePetRename(WorldPacket& recvData)
         stmt->setUInt32(0, _player->GetGUIDLow());
 
         for (uint8 i = 0; i < 5; i++)
-            stmt->setString(i+1, declinedname.name[i]);
+            stmt->setString(i + 1, declinedname.name[i]);
 
         trans->Append(stmt);
     }
@@ -685,9 +685,9 @@ void WorldSession::HandlePetRename(WorldPacket& recvData)
 
 void WorldSession::HandlePetAbandon(WorldPacket& recvData)
 {
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;                                      //pet guid
-    TC_LOG_INFO("network", "HandlePetAbandon. CMSG_PET_ABANDON pet guid is %u", GUID_LOPART(guid));
+    TC_LOG_INFO("network", "HandlePetAbandon. CMSG_PET_ABANDON %s", guid.ToString().c_str());
 
     if (!_player->IsInWorld())
         return;
@@ -706,7 +706,7 @@ void WorldSession::HandlePetAbandon(WorldPacket& recvData)
 void WorldSession::HandlePetSpellAutocastOpcode(WorldPacket& recvPacket)
 {
     TC_LOG_INFO("network", "CMSG_PET_SPELL_AUTOCAST");
-    uint64 guid;
+    ObjectGuid guid;
     uint32 spellid;
     uint8  state;                                           //1 for on, 0 for off
     recvPacket >> guid >> spellid >> state;
@@ -721,7 +721,7 @@ void WorldSession::HandlePetSpellAutocastOpcode(WorldPacket& recvPacket)
 
     if (!pet || (pet != _player->GetGuardianPet() && pet != _player->GetCharm()))
     {
-        TC_LOG_ERROR("network", "HandlePetSpellAutocastOpcode.Pet %u isn't pet of player %s (GUID: %u).", uint32(GUID_LOPART(guid)), GetPlayer()->GetName().c_str(), GUID_LOPART(GetPlayer()->GetGUID()));
+        TC_LOG_ERROR("network", "HandlePetSpellAutocastOpcode. %s isn't pet of player %s (%s).", guid.ToString().c_str(), GetPlayer()->GetName().c_str(), GetPlayer()->GetGUID().ToString().c_str());
         return;
     }
 
@@ -755,14 +755,14 @@ void WorldSession::HandlePetCastSpellOpcode(WorldPacket& recvPacket)
 {
     TC_LOG_DEBUG("network", "WORLD: CMSG_PET_CAST_SPELL");
 
-    uint64 guid;
+    ObjectGuid guid;
     uint8  castCount;
     uint32 spellId;
     uint8  castFlags;
 
     recvPacket >> guid >> castCount >> spellId >> castFlags;
 
-    TC_LOG_DEBUG("network", "WORLD: CMSG_PET_CAST_SPELL, guid: " UI64FMTD ", castCount: %u, spellId %u, castFlags %u", guid, castCount, spellId, castFlags);
+    TC_LOG_DEBUG("network", "WORLD: CMSG_PET_CAST_SPELL, %s, castCount: %u, spellId %u, castFlags %u", guid.ToString().c_str(), castCount, spellId, castFlags);
 
     // This opcode is also sent from charmed and possessed units (players and creatures)
     if (!_player->GetGuardianPet() && !_player->GetCharm())
@@ -772,7 +772,7 @@ void WorldSession::HandlePetCastSpellOpcode(WorldPacket& recvPacket)
 
     if (!caster || (caster != _player->GetGuardianPet() && caster != _player->GetCharm()))
     {
-        TC_LOG_ERROR("network", "HandlePetCastSpellOpcode: Pet %u isn't pet of player %s (GUID: %u).", uint32(GUID_LOPART(guid)), GetPlayer()->GetName().c_str(), GUID_LOPART(GetPlayer()->GetGUID()));
+        TC_LOG_ERROR("network", "HandlePetCastSpellOpcode: %s isn't pet of player %s (%s).", guid.ToString().c_str(), GetPlayer()->GetName().c_str(), GetPlayer()->GetGUID().ToString().c_str());
         return;
     }
 
@@ -854,7 +854,7 @@ void WorldSession::HandlePetLearnTalent(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: CMSG_PET_LEARN_TALENT");
 
-    uint64 guid;
+    ObjectGuid guid;
     uint32 talentId, requestedRank;
     recvData >> guid >> talentId >> requestedRank;
 
@@ -866,7 +866,7 @@ void WorldSession::HandleLearnPreviewTalentsPet(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "CMSG_LEARN_PREVIEW_TALENTS_PET");
 
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
 
     uint32 talentsCount;
diff --git a/src/server/game/Handlers/PetitionsHandler.cpp b/src/server/game/Handlers/PetitionsHandler.cpp
index 8eb699a978f..d3d32745c5e 100644
--- a/src/server/game/Handlers/PetitionsHandler.cpp
+++ b/src/server/game/Handlers/PetitionsHandler.cpp
@@ -54,7 +54,7 @@ void WorldSession::HandlePetitionBuyOpcode(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "Received opcode CMSG_PETITION_BUY");
 
-    uint64 guidNPC;
+    ObjectGuid guidNPC;
     uint32 clientIndex;                                     // 1 for guild and arenaslot+1 for arenas in client
     std::string name;
 
@@ -81,13 +81,13 @@ void WorldSession::HandlePetitionBuyOpcode(WorldPacket& recvData)
     recvData >> clientIndex;                               // index
     recvData.read_skip<uint32>();                          // 0
 
-    TC_LOG_DEBUG("network", "Petitioner with GUID %u tried sell petition: name %s", GUID_LOPART(guidNPC), name.c_str());
+    TC_LOG_DEBUG("network", "Petitioner %s tried sell petition: name %s", guidNPC.ToString().c_str(), name.c_str());
 
     // prevent cheating
     Creature* creature = GetPlayer()->GetNPCIfCanInteractWith(guidNPC, UNIT_NPC_FLAG_PETITIONER);
     if (!creature)
     {
-        TC_LOG_DEBUG("network", "WORLD: HandlePetitionBuyOpcode - Unit (GUID: %u) not found or you can't interact with him.", GUID_LOPART(guidNPC));
+        TC_LOG_DEBUG("network", "WORLD: HandlePetitionBuyOpcode - %s not found or you can't interact with him.", guidNPC.ToString().c_str());
         return;
     }
 
@@ -250,11 +250,10 @@ void WorldSession::HandlePetitionShowSignOpcode(WorldPacket& recvData)
     TC_LOG_DEBUG("network", "Received opcode CMSG_PETITION_SHOW_SIGNATURES");
 
     uint8 signs = 0;
-    uint64 petitionguid;
+    ObjectGuid petitionguid;
     recvData >> petitionguid;                              // petition guid
 
-    // solve (possible) some strange compile problems with explicit use GUID_LOPART(petitionguid) at some GCC versions (wrong code optimization in compiler?)
-    uint32 petitionGuidLow = GUID_LOPART(petitionguid);
+    uint32 petitionGuidLow = petitionguid.GetCounter();
 
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_PETITION_TYPE);
 
@@ -264,7 +263,7 @@ void WorldSession::HandlePetitionShowSignOpcode(WorldPacket& recvData)
 
     if (!result)
     {
-        TC_LOG_DEBUG("entities.player.items", "Petition %u is not found for player %u %s", GUID_LOPART(petitionguid), GetPlayer()->GetGUIDLow(), GetPlayer()->GetName().c_str());
+        TC_LOG_DEBUG("entities.player.items", "Petition %u is not found for player %u %s", petitionguid.GetCounter(), GetPlayer()->GetGUIDLow(), GetPlayer()->GetName().c_str());
         return;
     }
     Field* fields = result->Fetch();
@@ -297,7 +296,7 @@ void WorldSession::HandlePetitionShowSignOpcode(WorldPacket& recvData)
         Field* fields2 = result->Fetch();
         uint32 lowGuid = fields2[0].GetUInt32();
 
-        data << uint64(MAKE_NEW_GUID(lowGuid, 0, HIGHGUID_PLAYER)); // Player GUID
+        data << ObjectGuid(HIGHGUID_PLAYER, 0, lowGuid);    // Player GUID
         data << uint32(0);                                  // there 0 ...
 
         result->NextRow();
@@ -310,41 +309,41 @@ void WorldSession::HandlePetitionQueryOpcode(WorldPacket& recvData)
     TC_LOG_DEBUG("network", "Received opcode CMSG_PETITION_QUERY");   // ok
 
     uint32 guildguid;
-    uint64 petitionguid;
+    ObjectGuid petitionguid;
     recvData >> guildguid;                                 // in Trinity always same as GUID_LOPART(petitionguid)
     recvData >> petitionguid;                              // petition guid
-    TC_LOG_DEBUG("network", "CMSG_PETITION_QUERY Petition GUID %u Guild GUID %u", GUID_LOPART(petitionguid), guildguid);
+    TC_LOG_DEBUG("network", "CMSG_PETITION_QUERY Petition %s Guild GUID %u", petitionguid.ToString().c_str(), guildguid);
 
     SendPetitionQueryOpcode(petitionguid);
 }
 
-void WorldSession::SendPetitionQueryOpcode(uint64 petitionguid)
+void WorldSession::SendPetitionQueryOpcode(ObjectGuid petitionguid)
 {
-    uint64 ownerguid = 0;
+    ObjectGuid ownerguid;
     uint32 type;
     std::string name = "NO_NAME_FOR_GUID";
 
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_PETITION);
 
-    stmt->setUInt32(0, GUID_LOPART(petitionguid));
+    stmt->setUInt32(0, petitionguid.GetCounter());
 
     PreparedQueryResult result = CharacterDatabase.Query(stmt);
 
     if (result)
     {
         Field* fields = result->Fetch();
-        ownerguid = MAKE_NEW_GUID(fields[0].GetUInt32(), 0, HIGHGUID_PLAYER);
+        ownerguid = ObjectGuid(HIGHGUID_PLAYER, fields[0].GetUInt32());
         name      = fields[1].GetString();
         type      = fields[2].GetUInt8();
     }
     else
     {
-        TC_LOG_DEBUG("network", "CMSG_PETITION_QUERY failed for petition (GUID: %u)", GUID_LOPART(petitionguid));
+        TC_LOG_DEBUG("network", "CMSG_PETITION_QUERY failed for petition (%s)", petitionguid.ToString().c_str());
         return;
     }
 
     WorldPacket data(SMSG_PETITION_QUERY_RESPONSE, (4+8+name.size()+1+1+4*12+2+10));
-    data << uint32(GUID_LOPART(petitionguid));              // guild/team guid (in Trinity always same as GUID_LOPART(petition guid)
+    data << uint32(petitionguid.GetCounter());              // guild/team guid (in Trinity always same as GUID_LOPART(petition guid)
     data << uint64(ownerguid);                              // charter owner guid
     data << name;                                           // name (guild/arena team)
     data << uint8(0);                                       // some string
@@ -384,7 +383,7 @@ void WorldSession::HandlePetitionRenameOpcode(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "Received opcode MSG_PETITION_RENAME");
 
-    uint64 petitionGuid;
+    ObjectGuid petitionGuid;
     uint32 type;
     std::string newName;
 
@@ -397,7 +396,7 @@ void WorldSession::HandlePetitionRenameOpcode(WorldPacket& recvData)
 
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_PETITION_TYPE);
 
-    stmt->setUInt32(0, GUID_LOPART(petitionGuid));
+    stmt->setUInt32(0, petitionGuid.GetCounter());
 
     PreparedQueryResult result = CharacterDatabase.Query(stmt);
 
@@ -408,7 +407,7 @@ void WorldSession::HandlePetitionRenameOpcode(WorldPacket& recvData)
     }
     else
     {
-        TC_LOG_DEBUG("network", "CMSG_PETITION_QUERY failed for petition (GUID: %u)", GUID_LOPART(petitionGuid));
+        TC_LOG_DEBUG("network", "CMSG_PETITION_QUERY failed for petition %s", petitionGuid.ToString().c_str());
         return;
     }
 
@@ -442,11 +441,11 @@ void WorldSession::HandlePetitionRenameOpcode(WorldPacket& recvData)
     stmt = CharacterDatabase.GetPreparedStatement(CHAR_UPD_PETITION_NAME);
 
     stmt->setString(0, newName);
-    stmt->setUInt32(1, GUID_LOPART(petitionGuid));
+    stmt->setUInt32(1, petitionGuid.GetCounter());
 
     CharacterDatabase.Execute(stmt);
 
-    TC_LOG_DEBUG("network", "Petition (GUID: %u) renamed to '%s'", GUID_LOPART(petitionGuid), newName.c_str());
+    TC_LOG_DEBUG("network", "Petition %s renamed to '%s'", petitionGuid.ToString().c_str(), newName.c_str());
     WorldPacket data(MSG_PETITION_RENAME, (8+newName.size()+1));
     data << uint64(petitionGuid);
     data << newName;
@@ -458,31 +457,31 @@ void WorldSession::HandlePetitionSignOpcode(WorldPacket& recvData)
     TC_LOG_DEBUG("network", "Received opcode CMSG_PETITION_SIGN");    // ok
 
     Field* fields;
-    uint64 petitionGuid;
+    ObjectGuid petitionGuid;
     uint8 unk;
     recvData >> petitionGuid;                              // petition guid
     recvData >> unk;
 
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_PETITION_SIGNATURES);
 
-    stmt->setUInt32(0, GUID_LOPART(petitionGuid));
-    stmt->setUInt32(1, GUID_LOPART(petitionGuid));
+    stmt->setUInt32(0, petitionGuid.GetCounter());
+    stmt->setUInt32(1, petitionGuid.GetCounter());
 
     PreparedQueryResult result = CharacterDatabase.Query(stmt);
 
     if (!result)
     {
-        TC_LOG_ERROR("network", "Petition %u is not found for player %u %s", GUID_LOPART(petitionGuid), GetPlayer()->GetGUIDLow(), GetPlayer()->GetName().c_str());
+        TC_LOG_ERROR("network", "Petition %s is not found for player %u %s", petitionGuid.ToString().c_str(), GetPlayer()->GetGUIDLow(), GetPlayer()->GetName().c_str());
         return;
     }
 
     fields = result->Fetch();
-    uint64 ownerGuid = MAKE_NEW_GUID(fields[0].GetUInt32(), 0, HIGHGUID_PLAYER);
+    ObjectGuid ownerGuid(HIGHGUID_PLAYER, fields[0].GetUInt32());
     uint64 signs = fields[1].GetUInt64();
     uint8 type = fields[2].GetUInt8();
 
     uint32 playerGuid = _player->GetGUIDLow();
-    if (GUID_LOPART(ownerGuid) == playerGuid)
+    if (ownerGuid == _player->GetGUID())
         return;
 
     // not let enemies sign guild charter
@@ -541,7 +540,7 @@ void WorldSession::HandlePetitionSignOpcode(WorldPacket& recvData)
     stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_PETITION_SIG_BY_ACCOUNT);
 
     stmt->setUInt32(0, GetAccountId());
-    stmt->setUInt32(1, GUID_LOPART(petitionGuid));
+    stmt->setUInt32(1, petitionGuid.GetCounter());
 
     result = CharacterDatabase.Query(stmt);
 
@@ -559,14 +558,14 @@ void WorldSession::HandlePetitionSignOpcode(WorldPacket& recvData)
 
     stmt = CharacterDatabase.GetPreparedStatement(CHAR_INS_PETITION_SIGNATURE);
 
-    stmt->setUInt32(0, GUID_LOPART(ownerGuid));
-    stmt->setUInt32(1, GUID_LOPART(petitionGuid));
+    stmt->setUInt32(0, ownerGuid.GetCounter());
+    stmt->setUInt32(1, petitionGuid.GetCounter());
     stmt->setUInt32(2, playerGuid);
     stmt->setUInt32(3, GetAccountId());
 
     CharacterDatabase.Execute(stmt);
 
-    TC_LOG_DEBUG("network", "PETITION SIGN: GUID %u by player: %s (GUID: %u Account: %u)", GUID_LOPART(petitionGuid), _player->GetName().c_str(), playerGuid, GetAccountId());
+    TC_LOG_DEBUG("network", "PETITION SIGN: %s by player: %s (GUID: %u Account: %u)", petitionGuid.ToString().c_str(), _player->GetName().c_str(), playerGuid, GetAccountId());
 
     WorldPacket data(SMSG_PETITION_SIGN_RESULTS, (8+8+4));
     data << uint64(petitionGuid);
@@ -590,14 +589,13 @@ void WorldSession::HandlePetitionDeclineOpcode(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "Received opcode MSG_PETITION_DECLINE");  // ok
 
-    uint64 petitionguid;
-    uint64 ownerguid;
+    ObjectGuid petitionguid;
     recvData >> petitionguid;                              // petition guid
-    TC_LOG_DEBUG("network", "Petition %u declined by %u", GUID_LOPART(petitionguid), _player->GetGUIDLow());
+    TC_LOG_DEBUG("network", "Petition %s declined by %u", petitionguid.ToString().c_str(), _player->GetGUIDLow());
 
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_PETITION_OWNER_BY_GUID);
 
-    stmt->setUInt32(0, GUID_LOPART(petitionguid));
+    stmt->setUInt32(0, petitionguid.GetCounter());
 
     PreparedQueryResult result = CharacterDatabase.Query(stmt);
 
@@ -605,7 +603,7 @@ void WorldSession::HandlePetitionDeclineOpcode(WorldPacket& recvData)
         return;
 
     Field* fields = result->Fetch();
-    ownerguid = MAKE_NEW_GUID(fields[0].GetUInt32(), 0, HIGHGUID_PLAYER);
+    ObjectGuid ownerguid(HIGHGUID_PLAYER, 0, fields[0].GetUInt32());
 
     Player* owner = ObjectAccessor::FindPlayer(ownerguid);
     if (owner)                                               // petition owner online
@@ -621,7 +619,7 @@ void WorldSession::HandleOfferPetitionOpcode(WorldPacket& recvData)
     TC_LOG_DEBUG("network", "Received opcode CMSG_OFFER_PETITION");   // ok
 
     uint8 signs = 0;
-    uint64 petitionguid, plguid;
+    ObjectGuid petitionguid, plguid;
     uint32 type, junk;
     Player* player;
     recvData >> junk;                                      // this is not petition type!
@@ -634,7 +632,7 @@ void WorldSession::HandleOfferPetitionOpcode(WorldPacket& recvData)
 
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_PETITION_TYPE);
 
-    stmt->setUInt32(0, GUID_LOPART(petitionguid));
+    stmt->setUInt32(0, petitionguid.GetCounter());
 
     PreparedQueryResult result = CharacterDatabase.Query(stmt);
 
@@ -644,7 +642,7 @@ void WorldSession::HandleOfferPetitionOpcode(WorldPacket& recvData)
     Field* fields = result->Fetch();
     type = fields[0].GetUInt8();
 
-    TC_LOG_DEBUG("network", "OFFER PETITION: type %u, GUID1 %u, to player id: %u", type, GUID_LOPART(petitionguid), GUID_LOPART(plguid));
+    TC_LOG_DEBUG("network", "OFFER PETITION: type %u, %s, to %s", type, petitionguid.ToString().c_str(), plguid.ToString().c_str());
 
     if (!sWorld->getBoolConfig(CONFIG_ALLOW_TWO_SIDE_INTERACTION_GUILD) && GetPlayer()->GetTeam() != player->GetTeam())
     {
@@ -699,7 +697,7 @@ void WorldSession::HandleOfferPetitionOpcode(WorldPacket& recvData)
 
     stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_PETITION_SIGNATURE);
 
-    stmt->setUInt32(0, GUID_LOPART(petitionguid));
+    stmt->setUInt32(0, petitionguid.GetCounter());
 
     result = CharacterDatabase.Query(stmt);
 
@@ -710,13 +708,13 @@ void WorldSession::HandleOfferPetitionOpcode(WorldPacket& recvData)
     WorldPacket data(SMSG_PETITION_SHOW_SIGNATURES, (8+8+4+signs+signs*12));
     data << uint64(petitionguid);                           // petition guid
     data << uint64(_player->GetGUID());                     // owner guid
-    data << uint32(GUID_LOPART(petitionguid));              // guild guid
+    data << uint32(petitionguid.GetCounter());              // guild guid
     data << uint8(signs);                                   // sign's count
 
     for (uint8 i = 1; i <= signs; ++i)
     {
         Field* fields2 = result->Fetch();
-        data << uint64(MAKE_NEW_GUID(fields2[0].GetUInt32(), 0, HIGHGUID_PLAYER)); // Player GUID
+        data << uint64(ObjectGuid(HIGHGUID_PLAYER, fields2[0].GetUInt32())); // Player GUID
         data << uint32(0);                                  // there 0 ...
 
         result->NextRow();
@@ -731,7 +729,7 @@ void WorldSession::HandleTurnInPetitionOpcode(WorldPacket& recvData)
 
     // Get petition guid from packet
     WorldPacket data;
-    uint64 petitionGuid;
+    ObjectGuid petitionGuid;
 
     recvData >> petitionGuid;
 
@@ -740,7 +738,7 @@ void WorldSession::HandleTurnInPetitionOpcode(WorldPacket& recvData)
     if (!item)
         return;
 
-    TC_LOG_DEBUG("network", "Petition %u turned in by %u", GUID_LOPART(petitionGuid), _player->GetGUIDLow());
+    TC_LOG_DEBUG("network", "Petition %s turned in by %u", petitionGuid.ToString().c_str(), _player->GetGUIDLow());
 
     // Get petition data from db
     uint32 ownerguidlo;
@@ -748,7 +746,7 @@ void WorldSession::HandleTurnInPetitionOpcode(WorldPacket& recvData)
     std::string name;
 
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_PETITION);
-    stmt->setUInt32(0, GUID_LOPART(petitionGuid));
+    stmt->setUInt32(0, petitionGuid.GetCounter());
     PreparedQueryResult result = CharacterDatabase.Query(stmt);
 
     if (result)
@@ -760,7 +758,7 @@ void WorldSession::HandleTurnInPetitionOpcode(WorldPacket& recvData)
     }
     else
     {
-        TC_LOG_ERROR("network", "Player %s (guid: %u) tried to turn in petition (guid: %u) that is not present in the database", _player->GetName().c_str(), _player->GetGUIDLow(), GUID_LOPART(petitionGuid));
+        TC_LOG_ERROR("network", "Player %s (guid: %u) tried to turn in petition (%s) that is not present in the database", _player->GetName().c_str(), _player->GetGUIDLow(), petitionGuid.ToString().c_str());
         return;
     }
 
@@ -813,7 +811,7 @@ void WorldSession::HandleTurnInPetitionOpcode(WorldPacket& recvData)
     uint8 signatures;
 
     stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_PETITION_SIGNATURE);
-    stmt->setUInt32(0, GUID_LOPART(petitionGuid));
+    stmt->setUInt32(0, petitionGuid.GetCounter());
     result = CharacterDatabase.Query(stmt);
 
     if (result)
@@ -861,7 +859,7 @@ void WorldSession::HandleTurnInPetitionOpcode(WorldPacket& recvData)
         for (uint8 i = 0; i < signatures; ++i)
         {
             Field* fields = result->Fetch();
-            guild->AddMember(MAKE_NEW_GUID(fields[0].GetUInt32(), 0, HIGHGUID_PLAYER));
+            guild->AddMember(ObjectGuid(HIGHGUID_PLAYER, fields[0].GetUInt32()));
             result->NextRow();
         }
     }
@@ -888,9 +886,9 @@ void WorldSession::HandleTurnInPetitionOpcode(WorldPacket& recvData)
         for (uint8 i = 0; i < signatures; ++i)
         {
             Field* fields = result->Fetch();
-            uint32 memberGUID = fields[0].GetUInt32();
-            TC_LOG_DEBUG("network", "PetitionsHandler: Adding arena team (guid: %u) member %u", arenaTeam->GetId(), memberGUID);
-            arenaTeam->AddMember(MAKE_NEW_GUID(memberGUID, 0, HIGHGUID_PLAYER));
+            ObjectGuid memberGUID(HIGHGUID_PLAYER, fields[0].GetUInt32());
+            TC_LOG_DEBUG("network", "PetitionsHandler: Adding arena team (guid: %u) member %s", arenaTeam->GetId(), memberGUID.ToString().c_str());
+            arenaTeam->AddMember(memberGUID);
             result->NextRow();
         }
     }
@@ -898,17 +896,17 @@ void WorldSession::HandleTurnInPetitionOpcode(WorldPacket& recvData)
     SQLTransaction trans = CharacterDatabase.BeginTransaction();
 
     stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_PETITION_BY_GUID);
-    stmt->setUInt32(0, GUID_LOPART(petitionGuid));
+    stmt->setUInt32(0, petitionGuid.GetCounter());
     trans->Append(stmt);
 
     stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_PETITION_SIGNATURE_BY_GUID);
-    stmt->setUInt32(0, GUID_LOPART(petitionGuid));
+    stmt->setUInt32(0, petitionGuid.GetCounter());
     trans->Append(stmt);
 
     CharacterDatabase.CommitTransaction(trans);
 
     // created
-    TC_LOG_DEBUG("network", "TURN IN PETITION GUID %u", GUID_LOPART(petitionGuid));
+    TC_LOG_DEBUG("network", "Player %s (%s) turning in petition %s", _player->GetName().c_str(), _player->GetGUID().ToString().c_str(), petitionGuid.ToString().c_str());
 
     data.Initialize(SMSG_TURN_IN_PETITION_RESULTS, 4);
     data << (uint32)PETITION_TURN_OK;
@@ -919,18 +917,18 @@ void WorldSession::HandlePetitionShowListOpcode(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "Received CMSG_PETITION_SHOWLIST");
 
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
 
     SendPetitionShowList(guid);
 }
 
-void WorldSession::SendPetitionShowList(uint64 guid)
+void WorldSession::SendPetitionShowList(ObjectGuid guid)
 {
     Creature* creature = GetPlayer()->GetNPCIfCanInteractWith(guid, UNIT_NPC_FLAG_PETITIONER);
     if (!creature)
     {
-        TC_LOG_DEBUG("network", "WORLD: HandlePetitionShowListOpcode - Unit (GUID: %u) not found or you can't interact with him.", uint32(GUID_LOPART(guid)));
+        TC_LOG_DEBUG("network", "WORLD: HandlePetitionShowListOpcode - %s not found or you can't interact with him.", guid.ToString().c_str());
         return;
     }
 
diff --git a/src/server/game/Handlers/QueryHandler.cpp b/src/server/game/Handlers/QueryHandler.cpp
index e6c94250262..1418cd8a2d8 100644
--- a/src/server/game/Handlers/QueryHandler.cpp
+++ b/src/server/game/Handlers/QueryHandler.cpp
@@ -31,13 +31,13 @@
 #include "Pet.h"
 #include "MapManager.h"
 
-void WorldSession::SendNameQueryOpcode(uint64 guid)
+void WorldSession::SendNameQueryOpcode(ObjectGuid guid)
 {
     Player* player = ObjectAccessor::FindPlayer(guid);
-    CharacterNameData const* nameData = sWorld->GetCharacterNameData(GUID_LOPART(guid));
+    CharacterNameData const* nameData = sWorld->GetCharacterNameData(guid);
 
     WorldPacket data(SMSG_NAME_QUERY_RESPONSE, (8+1+1+1+1+1+10));
-    data.appendPackGUID(guid);
+    data << guid.WriteAsPacked();
     if (!nameData)
     {
         data << uint8(1);                           // name unknown
@@ -66,7 +66,7 @@ void WorldSession::SendNameQueryOpcode(uint64 guid)
 
 void WorldSession::HandleNameQueryOpcode(WorldPacket& recvData)
 {
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
 
     // This is disable by default to prevent lots of console spam
@@ -93,7 +93,7 @@ void WorldSession::HandleCreatureQueryOpcode(WorldPacket& recvData)
 {
     uint32 entry;
     recvData >> entry;
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
 
     CreatureTemplate const* creatureInfo = sObjectMgr->GetCreatureTemplate(entry);
@@ -158,8 +158,8 @@ void WorldSession::HandleCreatureQueryOpcode(WorldPacket& recvData)
     }
     else
     {
-        TC_LOG_DEBUG("network", "WORLD: CMSG_CREATURE_QUERY - NO CREATURE INFO! (GUID: %u, ENTRY: %u)",
-            GUID_LOPART(guid), entry);
+        TC_LOG_DEBUG("network", "WORLD: CMSG_CREATURE_QUERY - NO CREATURE INFO! (%s, ENTRY: %u)",
+            guid.ToString().c_str(), entry);
 
         WorldPacket data(SMSG_CREATURE_QUERY_RESPONSE, 4);
         data << uint32(entry | 0x80000000);
@@ -174,7 +174,7 @@ void WorldSession::HandleGameObjectQueryOpcode(WorldPacket& recvData)
 {
     uint32 entry;
     recvData >> entry;
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
 
     const GameObjectTemplate* info = sObjectMgr->GetGameObjectTemplate(entry);
@@ -217,8 +217,8 @@ void WorldSession::HandleGameObjectQueryOpcode(WorldPacket& recvData)
     }
     else
     {
-        TC_LOG_DEBUG("network", "WORLD: CMSG_GAMEOBJECT_QUERY - Missing gameobject info for (GUID: %u, ENTRY: %u)",
-            GUID_LOPART(guid), entry);
+        TC_LOG_DEBUG("network", "WORLD: CMSG_GAMEOBJECT_QUERY - Missing gameobject info for (%s, ENTRY: %u)",
+            guid.ToString().c_str(), entry);
         WorldPacket data (SMSG_GAMEOBJECT_QUERY_RESPONSE, 4);
         data << uint32(entry | 0x80000000);
         SendPacket(&data);
diff --git a/src/server/game/Handlers/QuestHandler.cpp b/src/server/game/Handlers/QuestHandler.cpp
index fe069ad5109..331256c7edd 100644
--- a/src/server/game/Handlers/QuestHandler.cpp
+++ b/src/server/game/Handlers/QuestHandler.cpp
@@ -34,14 +34,14 @@
 
 void WorldSession::HandleQuestgiverStatusQueryOpcode(WorldPacket& recvData)
 {
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
     uint32 questStatus = DIALOG_STATUS_NONE;
 
     Object* questGiver = ObjectAccessor::GetObjectByTypeMask(*_player, guid, TYPEMASK_UNIT | TYPEMASK_GAMEOBJECT);
     if (!questGiver)
     {
-        TC_LOG_INFO("network", "Error in CMSG_QUESTGIVER_STATUS_QUERY, called for non-existing questgiver (Typeid: %u GUID: %u)", GuidHigh2TypeId(GUID_HIPART(guid)), GUID_LOPART(guid));
+        TC_LOG_INFO("network", "Error in CMSG_QUESTGIVER_STATUS_QUERY, called for non-existing questgiver (%s)", guid.ToString().c_str());
         return;
     }
 
@@ -71,16 +71,16 @@ void WorldSession::HandleQuestgiverStatusQueryOpcode(WorldPacket& recvData)
 
 void WorldSession::HandleQuestgiverHelloOpcode(WorldPacket& recvData)
 {
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
 
-    TC_LOG_DEBUG("network", "WORLD: Received CMSG_QUESTGIVER_HELLO npc = %u", GUID_LOPART(guid));
+    TC_LOG_DEBUG("network", "WORLD: Received CMSG_QUESTGIVER_HELLO %s", guid.ToString().c_str());
 
     Creature* creature = GetPlayer()->GetNPCIfCanInteractWith(guid, UNIT_NPC_FLAG_NONE);
     if (!creature)
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleQuestgiverHelloOpcode - Unit (GUID: %u) not found or you can't interact with him.",
-            GUID_LOPART(guid));
+        TC_LOG_DEBUG("network", "WORLD: HandleQuestgiverHelloOpcode - %s not found or you can't interact with him.",
+            guid.ToString().c_str());
         return;
     }
 
@@ -101,19 +101,19 @@ void WorldSession::HandleQuestgiverHelloOpcode(WorldPacket& recvData)
 
 void WorldSession::HandleQuestgiverAcceptQuestOpcode(WorldPacket& recvData)
 {
-    uint64 guid;
+    ObjectGuid guid;
     uint32 questId;
     uint32 unk1;
     recvData >> guid >> questId >> unk1;
 
-    TC_LOG_DEBUG("network", "WORLD: Received CMSG_QUESTGIVER_ACCEPT_QUEST npc = %u, quest = %u, unk1 = %u", uint32(GUID_LOPART(guid)), questId, unk1);
+    TC_LOG_DEBUG("network", "WORLD: Received CMSG_QUESTGIVER_ACCEPT_QUEST %s, quest = %u, unk1 = %u", guid.ToString().c_str(), questId, unk1);
 
     Object* object = ObjectAccessor::GetObjectByTypeMask(*_player, guid, TYPEMASK_UNIT|TYPEMASK_GAMEOBJECT|TYPEMASK_ITEM|TYPEMASK_PLAYER);
 
 #define CLOSE_GOSSIP_CLEAR_DIVIDER() \
     do { \
         _player->PlayerTalkClass->SendCloseGossip(); \
-        _player->SetDivider(0); \
+        _player->SetDivider(ObjectGuid::Empty); \
     } while (0)
 
     // no or incorrect quest giver
@@ -154,13 +154,13 @@ void WorldSession::HandleQuestgiverAcceptQuestOpcode(WorldPacket& recvData)
             return;
         }
 
-        if (_player->GetDivider() != 0)
+        if (!_player->GetDivider().IsEmpty())
         {
             Player* player = ObjectAccessor::FindPlayer(_player->GetDivider());
             if (player)
             {
                 player->SendPushToPartyResponse(_player, QUEST_PARTY_MSG_ACCEPT_QUEST);
-                _player->SetDivider(0);
+                _player->SetDivider(ObjectGuid::Empty);
             }
         }
 
@@ -208,11 +208,11 @@ void WorldSession::HandleQuestgiverAcceptQuestOpcode(WorldPacket& recvData)
 
 void WorldSession::HandleQuestgiverQueryQuestOpcode(WorldPacket& recvData)
 {
-    uint64 guid;
+    ObjectGuid guid;
     uint32 questId;
     uint8 unk1;
     recvData >> guid >> questId >> unk1;
-    TC_LOG_DEBUG("network", "WORLD: Received CMSG_QUESTGIVER_QUERY_QUEST npc = %u, quest = %u, unk1 = %u", uint32(GUID_LOPART(guid)), questId, unk1);
+    TC_LOG_DEBUG("network", "WORLD: Received CMSG_QUESTGIVER_QUERY_QUEST npc = %s, quest = %u, unk1 = %u", guid.ToString().c_str(), questId, unk1);
 
     // Verify that the guid is valid and is a questgiver or involved in the requested quest
     Object* object = ObjectAccessor::GetObjectByTypeMask(*_player, guid, TYPEMASK_UNIT | TYPEMASK_GAMEOBJECT | TYPEMASK_ITEM);
@@ -253,7 +253,7 @@ void WorldSession::HandleQuestQueryOpcode(WorldPacket& recvData)
 void WorldSession::HandleQuestgiverChooseRewardOpcode(WorldPacket& recvData)
 {
     uint32 questId, reward;
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid >> questId >> reward;
 
     if (reward >= QUEST_REWARD_CHOICES_COUNT)
@@ -262,7 +262,7 @@ void WorldSession::HandleQuestgiverChooseRewardOpcode(WorldPacket& recvData)
         return;
     }
 
-    TC_LOG_DEBUG("network", "WORLD: Received CMSG_QUESTGIVER_CHOOSE_REWARD npc = %u, quest = %u, reward = %u", uint32(GUID_LOPART(guid)), questId, reward);
+    TC_LOG_DEBUG("network", "WORLD: Received CMSG_QUESTGIVER_CHOOSE_REWARD npc = %s, quest = %u, reward = %u", guid.ToString().c_str(), questId, reward);
 
     Quest const* quest = sObjectMgr->GetQuestTemplate(questId);
     if (!quest)
@@ -353,10 +353,10 @@ void WorldSession::HandleQuestgiverChooseRewardOpcode(WorldPacket& recvData)
 void WorldSession::HandleQuestgiverRequestRewardOpcode(WorldPacket& recvData)
 {
     uint32 questId;
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid >> questId;
 
-    TC_LOG_DEBUG("network", "WORLD: Received CMSG_QUESTGIVER_REQUEST_REWARD npc = %u, quest = %u", uint32(GUID_LOPART(guid)), questId);
+    TC_LOG_DEBUG("network", "WORLD: Received CMSG_QUESTGIVER_REQUEST_REWARD npc = %s, quest = %u", guid.ToString().c_str(), questId);
 
     Object* object = ObjectAccessor::GetObjectByTypeMask(*_player, guid, TYPEMASK_UNIT | TYPEMASK_GAMEOBJECT);
     if (!object || !object->hasInvolvedQuest(questId))
@@ -457,18 +457,18 @@ void WorldSession::HandleQuestConfirmAccept(WorldPacket& recvData)
         if (_player->CanAddQuest(quest, true))
             _player->AddQuestAndCheckCompletion(quest, NULL); // NULL, this prevent DB script from duplicate running
 
-        _player->SetDivider(0);
+        _player->SetDivider(ObjectGuid::Empty);
     }
 }
 
 void WorldSession::HandleQuestgiverCompleteQuest(WorldPacket& recvData)
 {
     uint32 questId;
-    uint64 guid; // NPC / GameObject guid for normal quest completion. Player guid for self-completed quests
+    ObjectGuid guid; // NPC / GameObject guid for normal quest completion. Player guid for self-completed quests
     bool autoCompleteMode;      // 0 - standart complete quest mode with npc, 1 - auto-complete mode
     recvData >> guid >> questId >> autoCompleteMode;
 
-    TC_LOG_DEBUG("network", "WORLD: Received CMSG_QUESTGIVER_COMPLETE_QUEST npc = %u, questId = %u self-complete: %u", uint32(GUID_LOPART(guid)), questId, autoCompleteMode ? 1 : 0);
+    TC_LOG_DEBUG("network", "WORLD: Received CMSG_QUESTGIVER_COMPLETE_QUEST npc = %s, questId = %u self-complete: %u", guid.ToString().c_str(), questId, autoCompleteMode ? 1 : 0);
 
     Quest const* quest = sObjectMgr->GetQuestTemplate(questId);
     if (!quest)
@@ -584,7 +584,7 @@ void WorldSession::HandlePushQuestToParty(WorldPacket& recvPacket)
             continue;
         }
 
-        if (receiver->GetDivider() != 0)
+        if (receiver->GetDivider())
         {
             sender->SendPushToPartyResponse(receiver, QUEST_PARTY_MSG_BUSY);
             continue;
@@ -607,7 +607,7 @@ void WorldSession::HandlePushQuestToParty(WorldPacket& recvPacket)
 
 void WorldSession::HandleQuestPushResult(WorldPacket& recvPacket)
 {
-    uint64 guid;
+    ObjectGuid guid;
     uint32 questId;
     uint8 msg;
     recvPacket >> guid >> questId >> msg;
@@ -623,7 +623,7 @@ void WorldSession::HandleQuestPushResult(WorldPacket& recvPacket)
             data << uint64(_player->GetGUID());
             data << uint8(msg);                             // valid values: 0-8
             player->SendDirectMessage(&data);
-            _player->SetDivider(0);
+            _player->SetDivider(ObjectGuid::Empty);
         }
     }
 }
@@ -637,11 +637,11 @@ void WorldSession::HandleQuestgiverStatusMultipleQuery(WorldPacket& /*recvPacket
     WorldPacket data(SMSG_QUESTGIVER_STATUS_MULTIPLE, 4 + 8 + 4);
     data << uint32(count);                                  // placeholder
 
-    for (Player::ClientGUIDs::const_iterator itr = _player->m_clientGUIDs.begin(); itr != _player->m_clientGUIDs.end(); ++itr)
+    for (GuidSet::const_iterator itr = _player->m_clientGUIDs.begin(); itr != _player->m_clientGUIDs.end(); ++itr)
     {
         uint32 questStatus = DIALOG_STATUS_NONE;
 
-        if (IS_CRE_OR_VEH_OR_PET_GUID(*itr))
+        if (itr->IsAnyTypeCreature())
         {
             // need also pet quests case support
             Creature* questgiver = ObjectAccessor::GetCreatureOrPetOrVehicle(*GetPlayer(), *itr);
@@ -656,7 +656,7 @@ void WorldSession::HandleQuestgiverStatusMultipleQuery(WorldPacket& /*recvPacket
             data << uint32(questStatus);
             ++count;
         }
-        else if (IS_GAMEOBJECT_GUID(*itr))
+        else if (itr->IsGameObject())
         {
             GameObject* questgiver = GetPlayer()->GetMap()->GetGameObject(*itr);
             if (!questgiver || questgiver->GetGoType() != GAMEOBJECT_TYPE_QUESTGIVER)
diff --git a/src/server/game/Handlers/ReferAFriendHandler.cpp b/src/server/game/Handlers/ReferAFriendHandler.cpp
index 2efc9df5d94..3ffc8df465e 100644
--- a/src/server/game/Handlers/ReferAFriendHandler.cpp
+++ b/src/server/game/Handlers/ReferAFriendHandler.cpp
@@ -25,8 +25,8 @@ void WorldSession::HandleGrantLevel(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: CMSG_GRANT_LEVEL");
 
-    uint64 guid;
-    recvData.readPackGUID(guid);
+    ObjectGuid guid;
+    recvData >> guid.ReadAsPacked();
 
     Player* target = ObjectAccessor::GetObjectInWorld(guid, _player);
 
@@ -60,7 +60,7 @@ void WorldSession::HandleGrantLevel(WorldPacket& recvData)
     }
 
     WorldPacket data2(SMSG_PROPOSE_LEVEL_GRANT, 8);
-    data2.append(_player->GetPackGUID());
+    data2 << _player->GetPackGUID();
     target->GetSession()->SendPacket(&data2);
 }
 
@@ -68,8 +68,8 @@ void WorldSession::HandleAcceptGrantLevel(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: CMSG_ACCEPT_LEVEL_GRANT");
 
-    uint64 guid;
-    recvData.readPackGUID(guid);
+    ObjectGuid guid;
+    recvData >> guid.ReadAsPacked();
 
     Player* other = ObjectAccessor::GetObjectInWorld(guid, _player);
     if (!(other && other->GetSession()))
diff --git a/src/server/game/Handlers/SkillHandler.cpp b/src/server/game/Handlers/SkillHandler.cpp
index 8e10fc94ea6..61868a8616a 100644
--- a/src/server/game/Handlers/SkillHandler.cpp
+++ b/src/server/game/Handlers/SkillHandler.cpp
@@ -83,13 +83,13 @@ void WorldSession::HandleLearnPreviewTalents(WorldPacket& recvPacket)
 void WorldSession::HandleTalentWipeConfirmOpcode(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "MSG_TALENT_WIPE_CONFIRM");
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
 
     Creature* unit = GetPlayer()->GetNPCIfCanInteractWith(guid, UNIT_NPC_FLAG_TRAINER);
     if (!unit)
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleTalentWipeConfirmOpcode - Unit (GUID: %u) not found or you can't interact with him.", uint32(GUID_LOPART(guid)));
+        TC_LOG_DEBUG("network", "WORLD: HandleTalentWipeConfirmOpcode - %s not found or you can't interact with him.", guid.ToString().c_str());
         return;
     }
 
diff --git a/src/server/game/Handlers/SpellHandler.cpp b/src/server/game/Handlers/SpellHandler.cpp
index ee428694beb..05d03a44012 100644
--- a/src/server/game/Handlers/SpellHandler.cpp
+++ b/src/server/game/Handlers/SpellHandler.cpp
@@ -88,7 +88,7 @@ void WorldSession::HandleUseItemOpcode(WorldPacket& recvPacket)
 
     uint8 bagIndex, slot, castFlags;
     uint8 castCount;                                        // next cast if exists (single or not)
-    uint64 itemGUID;
+    ObjectGuid itemGUID;
     uint32 glyphIndex;                                      // something to do with glyphs?
     uint32 spellId;                                         // cast spell id
 
@@ -261,7 +261,7 @@ void WorldSession::HandleOpenItemOpcode(WorldPacket& recvPacket)
             uint32 entry = fields[0].GetUInt32();
             uint32 flags = fields[1].GetUInt32();
 
-            item->SetUInt64Value(ITEM_FIELD_GIFTCREATOR, 0);
+            item->SetGuidValue(ITEM_FIELD_GIFTCREATOR, ObjectGuid::Empty);
             item->SetEntry(entry);
             item->SetUInt32Value(ITEM_FIELD_FLAGS, flags);
             item->SetState(ITEM_CHANGED, pUser);
@@ -285,10 +285,10 @@ void WorldSession::HandleOpenItemOpcode(WorldPacket& recvPacket)
 
 void WorldSession::HandleGameObjectUseOpcode(WorldPacket& recvData)
 {
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
 
-    TC_LOG_DEBUG("network", "WORLD: Recvd CMSG_GAMEOBJ_USE Message [guid=%u]", GUID_LOPART(guid));
+    TC_LOG_DEBUG("network", "WORLD: Recvd CMSG_GAMEOBJ_USE Message [%s]", guid.ToString().c_str());
 
     if (GameObject* obj = GetPlayer()->GetMap()->GetGameObject(guid))
     {
@@ -306,10 +306,10 @@ void WorldSession::HandleGameObjectUseOpcode(WorldPacket& recvData)
 
 void WorldSession::HandleGameobjectReportUse(WorldPacket& recvPacket)
 {
-    uint64 guid;
+    ObjectGuid guid;
     recvPacket >> guid;
 
-    TC_LOG_DEBUG("network", "WORLD: Recvd CMSG_GAMEOBJ_REPORT_USE Message [in game guid: %u]", GUID_LOPART(guid));
+    TC_LOG_DEBUG("network", "WORLD: Recvd CMSG_GAMEOBJ_REPORT_USE Message [%s]", guid.ToString().c_str());
 
     // ignore for remote control state
     if (_player->m_mover != _player)
@@ -435,7 +435,7 @@ void WorldSession::HandleCastSpellOpcode(WorldPacket& recvPacket)
             spellInfo = actualSpellInfo;
     }
 
-    Spell* spell = new Spell(caster, spellInfo, TRIGGERED_NONE, 0, false);
+    Spell* spell = new Spell(caster, spellInfo, TRIGGERED_NONE, ObjectGuid::Empty, false);
     spell->m_cast_count = castCount;                       // set count of casts
     spell->m_glyphIndex = glyphIndex;
     spell->prepare(&targets);
@@ -481,7 +481,7 @@ void WorldSession::HandleCancelAuraOpcode(WorldPacket& recvPacket)
         return;
 
     // maybe should only remove one buff when there are multiple?
-    _player->RemoveOwnedAura(spellId, 0, 0, AURA_REMOVE_BY_CANCEL);
+    _player->RemoveOwnedAura(spellId, ObjectGuid::Empty, 0, AURA_REMOVE_BY_CANCEL);
 
     // If spell being removed is a resource tracker, see if player was tracking both (herbs / minerals) and remove the other
     if (sWorld->getBoolConfig(CONFIG_ALLOW_TRACK_BOTH_RESOURCES) && spellInfo->HasAura(SPELL_AURA_TRACK_RESOURCES))
@@ -493,19 +493,19 @@ void WorldSession::HandleCancelAuraOpcode(WorldPacket& recvPacket)
             //  over AuraEffectList caused "incompatible iterator" errors on second pass
             std::list<uint32> spellIDs;
 
-            for (Unit::AuraEffectList::const_iterator auraEffect = auraEffects.begin(); auraEffect != auraEffects.end(); auraEffect++)
+            for (Unit::AuraEffectList::const_iterator auraEffect = auraEffects.begin(); auraEffect != auraEffects.end(); ++auraEffect)
                 spellIDs.push_back((*auraEffect)->GetId());
 
             // Remove all auras related to resource tracking (only Herbs and Minerals in 3.3.5a)
-            for (std::list<uint32>::iterator it = spellIDs.begin(); it != spellIDs.end(); it++)
-                _player->RemoveOwnedAura(*it, 0, 0, AURA_REMOVE_BY_CANCEL);
+            for (std::list<uint32>::iterator it = spellIDs.begin(); it != spellIDs.end(); ++it)
+                _player->RemoveOwnedAura(*it, ObjectGuid::Empty, 0, AURA_REMOVE_BY_CANCEL);
         }
     }
 }
 
 void WorldSession::HandlePetCancelAuraOpcode(WorldPacket& recvPacket)
 {
-    uint64 guid;
+    ObjectGuid guid;
     uint32 spellId;
 
     recvPacket >> guid;
@@ -522,13 +522,13 @@ void WorldSession::HandlePetCancelAuraOpcode(WorldPacket& recvPacket)
 
     if (!pet)
     {
-        TC_LOG_ERROR("network", "HandlePetCancelAura: Attempt to cancel an aura for non-existant pet %u by player '%s'", uint32(GUID_LOPART(guid)), GetPlayer()->GetName().c_str());
+        TC_LOG_ERROR("network", "HandlePetCancelAura: Attempt to cancel an aura for non-existant %s by player '%s'", guid.ToString().c_str(), GetPlayer()->GetName().c_str());
         return;
     }
 
     if (pet != GetPlayer()->GetGuardianPet() && pet != GetPlayer()->GetCharm())
     {
-        TC_LOG_ERROR("network", "HandlePetCancelAura: Pet %u is not a pet of player '%s'", uint32(GUID_LOPART(guid)), GetPlayer()->GetName().c_str());
+        TC_LOG_ERROR("network", "HandlePetCancelAura: %s is not a pet of player '%s'", guid.ToString().c_str(), GetPlayer()->GetName().c_str());
         return;
     }
 
@@ -538,7 +538,7 @@ void WorldSession::HandlePetCancelAuraOpcode(WorldPacket& recvPacket)
         return;
     }
 
-    pet->RemoveOwnedAura(spellId, 0, 0, AURA_REMOVE_BY_CANCEL);
+    pet->RemoveOwnedAura(spellId, ObjectGuid::Empty, 0, AURA_REMOVE_BY_CANCEL);
 
     pet->AddCreatureSpellCooldown(spellId);
 }
@@ -606,7 +606,7 @@ void WorldSession::HandleSelfResOpcode(WorldPacket& /*recvData*/)
 
 void WorldSession::HandleSpellClick(WorldPacket& recvData)
 {
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
 
     // this will get something not in world. crash
@@ -625,7 +625,7 @@ void WorldSession::HandleSpellClick(WorldPacket& recvData)
 void WorldSession::HandleMirrorImageDataRequest(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: CMSG_GET_MIRRORIMAGE_DATA");
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
     recvData.read_skip<uint32>(); // DisplayId ?
 
@@ -719,7 +719,7 @@ void WorldSession::HandleUpdateProjectilePosition(WorldPacket& recvPacket)
 {
     TC_LOG_DEBUG("network", "WORLD: CMSG_UPDATE_PROJECTILE_POSITION");
 
-    uint64 casterGuid;
+    ObjectGuid casterGuid;
     uint32 spellId;
     uint8 castCount;
     float x, y, z;    // Position of missile hit
diff --git a/src/server/game/Handlers/TaxiHandler.cpp b/src/server/game/Handlers/TaxiHandler.cpp
index aaa9188b6f4..f281084f3ff 100644
--- a/src/server/game/Handlers/TaxiHandler.cpp
+++ b/src/server/game/Handlers/TaxiHandler.cpp
@@ -32,19 +32,19 @@ void WorldSession::HandleTaxiNodeStatusQueryOpcode(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: Received CMSG_TAXINODE_STATUS_QUERY");
 
-    uint64 guid;
+    ObjectGuid guid;
 
     recvData >> guid;
     SendTaxiStatus(guid);
 }
 
-void WorldSession::SendTaxiStatus(uint64 guid)
+void WorldSession::SendTaxiStatus(ObjectGuid guid)
 {
     // cheating checks
     Creature* unit = GetPlayer()->GetMap()->GetCreature(guid);
     if (!unit)
     {
-        TC_LOG_DEBUG("network", "WorldSession::SendTaxiStatus - Unit (GUID: %u) not found.", uint32(GUID_LOPART(guid)));
+        TC_LOG_DEBUG("network", "WorldSession::SendTaxiStatus - %s not found.", guid.ToString().c_str());
         return;
     }
 
@@ -67,14 +67,14 @@ void WorldSession::HandleTaxiQueryAvailableNodes(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: Received CMSG_TAXIQUERYAVAILABLENODES");
 
-    uint64 guid;
+    ObjectGuid guid;
     recvData >> guid;
 
     // cheating checks
     Creature* unit = GetPlayer()->GetNPCIfCanInteractWith(guid, UNIT_NPC_FLAG_FLIGHTMASTER);
     if (!unit)
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleTaxiQueryAvailableNodes - Unit (GUID: %u) not found or you can't interact with him.", uint32(GUID_LOPART(guid)));
+        TC_LOG_DEBUG("network", "WORLD: HandleTaxiQueryAvailableNodes - %s not found or you can't interact with him.", guid.ToString().c_str());
         return;
     }
 
@@ -167,7 +167,7 @@ void WorldSession::HandleActivateTaxiExpressOpcode (WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: Received CMSG_ACTIVATETAXIEXPRESS");
 
-    uint64 guid;
+    ObjectGuid guid;
     uint32 node_count;
 
     recvData >> guid >> node_count;
@@ -175,7 +175,7 @@ void WorldSession::HandleActivateTaxiExpressOpcode (WorldPacket& recvData)
     Creature* npc = GetPlayer()->GetNPCIfCanInteractWith(guid, UNIT_NPC_FLAG_FLIGHTMASTER);
     if (!npc)
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleActivateTaxiExpressOpcode - Unit (GUID: %u) not found or you can't interact with it.", uint32(GUID_LOPART(guid)));
+        TC_LOG_DEBUG("network", "WORLD: HandleActivateTaxiExpressOpcode - %s not found or you can't interact with it.", guid.ToString().c_str());
         return;
     }
     std::vector<uint32> nodes;
@@ -282,7 +282,7 @@ void WorldSession::HandleActivateTaxiOpcode(WorldPacket& recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: Received CMSG_ACTIVATETAXI");
 
-    uint64 guid;
+    ObjectGuid guid;
     std::vector<uint32> nodes;
     nodes.resize(2);
 
@@ -291,7 +291,7 @@ void WorldSession::HandleActivateTaxiOpcode(WorldPacket& recvData)
     Creature* npc = GetPlayer()->GetNPCIfCanInteractWith(guid, UNIT_NPC_FLAG_FLIGHTMASTER);
     if (!npc)
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleActivateTaxiOpcode - Unit (GUID: %u) not found or you can't interact with it.", uint32(GUID_LOPART(guid)));
+        TC_LOG_DEBUG("network", "WORLD: HandleActivateTaxiOpcode - %s not found or you can't interact with it.", guid.ToString().c_str());
         return;
     }
 
diff --git a/src/server/game/Handlers/TicketHandler.cpp b/src/server/game/Handlers/TicketHandler.cpp
index 53cde5e8e5a..65377513002 100644
--- a/src/server/game/Handlers/TicketHandler.cpp
+++ b/src/server/game/Handlers/TicketHandler.cpp
@@ -218,7 +218,7 @@ void WorldSession::HandleGMSurveySubmit(WorldPacket& recvData)
     recvData >> comment;
 
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_INS_GM_SURVEY);
-    stmt->setUInt32(0, GUID_LOPART(GetPlayer()->GetGUID()));
+    stmt->setUInt32(0, GetPlayer()->GetGUIDLow());
     stmt->setUInt32(1, nextSurveyID);
     stmt->setUInt32(2, mainSurvey);
     stmt->setString(3, comment);
@@ -241,7 +241,7 @@ void WorldSession::HandleReportLag(WorldPacket& recvData)
     recvData >> z;
 
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_INS_LAG_REPORT);
-    stmt->setUInt32(0, GUID_LOPART(GetPlayer()->GetGUID()));
+    stmt->setUInt32(0, GetPlayer()->GetGUIDLow());
     stmt->setUInt8 (1, lagType);
     stmt->setUInt16(2, mapId);
     stmt->setFloat (3, x);
diff --git a/src/server/game/Handlers/TradeHandler.cpp b/src/server/game/Handlers/TradeHandler.cpp
index f4aca0528a0..e89cc788bf7 100644
--- a/src/server/game/Handlers/TradeHandler.cpp
+++ b/src/server/game/Handlers/TradeHandler.cpp
@@ -122,8 +122,8 @@ void WorldSession::SendUpdateTrade(bool trader_data /*= true*/)
         if (!item)
             continue;
 
-        ObjectGuid giftCreatorGuid = item->GetUInt64Value(ITEM_FIELD_GIFTCREATOR);
-        ObjectGuid creatorGuid = item->GetUInt64Value(ITEM_FIELD_CREATOR);
+        ObjectGuid giftCreatorGuid = item->GetGuidValue(ITEM_FIELD_GIFTCREATOR);
+        ObjectGuid creatorGuid = item->GetGuidValue(ITEM_FIELD_CREATOR);
 
         data.WriteBit(giftCreatorGuid[7]);
         data.WriteBit(giftCreatorGuid[1]);
@@ -557,12 +557,12 @@ void WorldSession::HandleAcceptTradeOpcode(WorldPacket& /*recvPacket*/)
         {
             if (myItems[i])
             {
-                myItems[i]->SetUInt64Value(ITEM_FIELD_GIFTCREATOR, _player->GetGUID());
+                myItems[i]->SetGuidValue(ITEM_FIELD_GIFTCREATOR, _player->GetGUID());
                 _player->MoveItemFromInventory(myItems[i]->GetBagSlot(), myItems[i]->GetSlot(), true);
             }
             if (hisItems[i])
             {
-                hisItems[i]->SetUInt64Value(ITEM_FIELD_GIFTCREATOR, trader->GetGUID());
+                hisItems[i]->SetGuidValue(ITEM_FIELD_GIFTCREATOR, trader->GetGUID());
                 trader->MoveItemFromInventory(hisItems[i]->GetBagSlot(), hisItems[i]->GetSlot(), true);
             }
         }
@@ -849,7 +849,7 @@ void WorldSession::HandleSetTradeItemOpcode(WorldPacket& recvPacket)
         return;
     }
 
-    uint64 iGUID = item->GetGUID();
+    ObjectGuid iGUID = item->GetGUID();
 
     // prevent place single item into many trade slots using cheating and client bugs
     if (my_trade->HasItem(iGUID))
@@ -860,7 +860,7 @@ void WorldSession::HandleSetTradeItemOpcode(WorldPacket& recvPacket)
         return;
     }
 
-    if (slot != TRADE_SLOT_NONTRADED && item->IsBindedNotWith(my_trade->GetTrader()))
+    if (tradeSlot != TRADE_SLOT_NONTRADED && item->IsBindedNotWith(my_trade->GetTrader()))
     {
         info.Status = TRADE_STATUS_NOT_ON_TAPLIST;
         info.Slot = tradeSlot;
diff --git a/src/server/game/Handlers/VehicleHandler.cpp b/src/server/game/Handlers/VehicleHandler.cpp
index e17b33c345b..4181332fc02 100644
--- a/src/server/game/Handlers/VehicleHandler.cpp
+++ b/src/server/game/Handlers/VehicleHandler.cpp
@@ -28,7 +28,7 @@ void WorldSession::HandleDismissControlledVehicle(WorldPacket &recvData)
 {
     TC_LOG_DEBUG("network", "WORLD: Recvd CMSG_DISMISS_CONTROLLED_VEHICLE");
 
-    uint64 vehicleGUID = _player->GetCharmGUID();
+    ObjectGuid vehicleGUID = _player->GetCharmGUID();
 
     if (!vehicleGUID)                                       // something wrong here...
     {
@@ -100,7 +100,7 @@ void WorldSession::HandleChangeSeatsOnControlledVehicle(WorldPacket& recvData)
             GetPlayer()->ReadMovementInfo(recvData, &movementInfo, &extra);
             vehicle_base->m_movementInfo = movementInfo;
 
-            uint64 accessory = extra.Data.guid;
+            ObjectGuid accessory = extra.Data.guid;
             int8 seatId = extra.Data.byteData;
 
             if (vehicle_base->GetGUID() != movementInfo.guid)
@@ -118,8 +118,8 @@ void WorldSession::HandleChangeSeatsOnControlledVehicle(WorldPacket& recvData)
         }
         case CMSG_REQUEST_VEHICLE_SWITCH_SEAT:
         {
-            uint64 guid;        // current vehicle guid
-            recvData.readPackGUID(guid);
+            ObjectGuid guid;        // current vehicle guid
+            recvData >> guid.ReadAsPacked();
 
             int8 seatId;
             recvData >> seatId;
@@ -140,7 +140,7 @@ void WorldSession::HandleChangeSeatsOnControlledVehicle(WorldPacket& recvData)
 void WorldSession::HandleEnterPlayerVehicle(WorldPacket& data)
 {
     // Read guid
-    uint64 guid;
+    ObjectGuid guid;
     data >> guid;
 
     if (Player* player = ObjectAccessor::FindPlayer(guid))
@@ -162,63 +162,37 @@ void WorldSession::HandleEjectPassenger(WorldPacket& data)
     if (!vehicle)
     {
         data.rfinish();                                     // prevent warnings spam
-        TC_LOG_ERROR("network", "HandleEjectPassenger: Player %u is not in a vehicle!", GetPlayer()->GetGUIDLow());
+        TC_LOG_ERROR("network", "HandleEjectPassenger: %s is not in a vehicle!", GetPlayer()->GetGUID().ToString().c_str());
         return;
     }
 
-    uint64 guid;
+    ObjectGuid guid;
     data >> guid;
 
-    if (IS_PLAYER_GUID(guid))
-    {
-        Player* player = ObjectAccessor::FindPlayer(guid);
-        if (!player)
-        {
-            TC_LOG_ERROR("network", "Player %u tried to eject player %u from vehicle, but the latter was not found in world!", GetPlayer()->GetGUIDLow(), GUID_LOPART(guid));
-            return;
-        }
-
-        if (!player->IsOnVehicle(vehicle->GetBase()))
-        {
-            TC_LOG_ERROR("network", "Player %u tried to eject player %u, but they are not in the same vehicle", GetPlayer()->GetGUIDLow(), GUID_LOPART(guid));
-            return;
-        }
-
-        VehicleSeatEntry const* seat = vehicle->GetSeatForPassenger(player);
-        ASSERT(seat);
-        if (seat->IsEjectable())
-            player->ExitVehicle();
-        else
-            TC_LOG_ERROR("network", "Player %u attempted to eject player %u from non-ejectable seat.", GetPlayer()->GetGUIDLow(), GUID_LOPART(guid));
-    }
-
-    else if (IS_CREATURE_GUID(guid))
+    if (guid.IsUnit())
     {
         Unit* unit = ObjectAccessor::GetUnit(*_player, guid);
         if (!unit) // creatures can be ejected too from player mounts
         {
-            TC_LOG_ERROR("network", "Player %u tried to eject creature guid %u from vehicle, but the latter was not found in world!", GetPlayer()->GetGUIDLow(), GUID_LOPART(guid));
+            TC_LOG_ERROR("network", "%s tried to eject %s from vehicle, but the latter was not found in world!", GetPlayer()->GetGUID().ToString().c_str(), guid.ToString().c_str());
             return;
         }
 
         if (!unit->IsOnVehicle(vehicle->GetBase()))
         {
-            TC_LOG_ERROR("network", "Player %u tried to eject unit %u, but they are not in the same vehicle", GetPlayer()->GetGUIDLow(), GUID_LOPART(guid));
+            TC_LOG_ERROR("network", "%s tried to eject %s, but they are not in the same vehicle", GetPlayer()->GetGUID().ToString().c_str(), guid.ToString().c_str());
             return;
         }
 
         VehicleSeatEntry const* seat = vehicle->GetSeatForPassenger(unit);
         ASSERT(seat);
         if (seat->IsEjectable())
-        {
-            ASSERT(GetPlayer() == vehicle->GetBase());
             unit->ExitVehicle();
-        }
         else
-            TC_LOG_ERROR("network", "Player %u attempted to eject creature GUID %u from non-ejectable seat.", GetPlayer()->GetGUIDLow(), GUID_LOPART(guid));
+            TC_LOG_ERROR("network", "Player %u attempted to eject %s from non-ejectable seat.", GetPlayer()->GetGUIDLow(), guid.ToString().c_str());
     }
     else
-        TC_LOG_ERROR("network", "HandleEjectPassenger: Player %u tried to eject invalid GUID " UI64FMTD, GetPlayer()->GetGUIDLow(), guid);
+        TC_LOG_ERROR("network", "HandleEjectPassenger: %s tried to eject invalid %s ", GetPlayer()->GetGUID().ToString().c_str(), guid.ToString().c_str());
 }
 
 void WorldSession::HandleRequestVehicleExit(WorldPacket& /*recvData*/)
diff --git a/src/server/game/Handlers/VoidStorageHandler.cpp b/src/server/game/Handlers/VoidStorageHandler.cpp
index cf117762801..82e19ea8905 100644
--- a/src/server/game/Handlers/VoidStorageHandler.cpp
+++ b/src/server/game/Handlers/VoidStorageHandler.cpp
@@ -62,7 +62,7 @@ void WorldSession::HandleVoidStorageUnlock(WorldPacket& recvData)
     Creature* unit = player->GetNPCIfCanInteractWith(npcGuid, UNIT_NPC_FLAG_VAULTKEEPER);
     if (!unit)
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleVoidStorageUnlock - Unit (GUID: %u) not found or player can't interact with it.", GUID_LOPART(npcGuid));
+        TC_LOG_DEBUG("network", "WORLD: HandleVoidStorageUnlock - %s not found or player can't interact with it.", npcGuid.ToString().c_str());
         return;
     }
 
@@ -103,7 +103,7 @@ void WorldSession::HandleVoidStorageQuery(WorldPacket& recvData)
     Creature* unit = player->GetNPCIfCanInteractWith(npcGuid, UNIT_NPC_FLAG_VAULTKEEPER);
     if (!unit)
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleVoidStorageQuery - Unit (GUID: %u) not found or player can't interact with it.", GUID_LOPART(npcGuid));
+        TC_LOG_DEBUG("network", "WORLD: HandleVoidStorageQuery - %s not found or player can't interact with it.", npcGuid.ToString().c_str());
         return;
     }
 
@@ -130,7 +130,7 @@ void WorldSession::HandleVoidStorageQuery(WorldPacket& recvData)
         if (!item)
             continue;
 
-        ObjectGuid itemId = item->ItemId;
+        ObjectGuid itemId(item->ItemId);
         ObjectGuid creatorGuid = item->CreatorGuid;
 
         data.WriteBit(creatorGuid[3]);
@@ -284,7 +284,7 @@ void WorldSession::HandleVoidStorageTransfer(WorldPacket& recvData)
     Creature* unit = player->GetNPCIfCanInteractWith(npcGuid, UNIT_NPC_FLAG_VAULTKEEPER);
     if (!unit)
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleVoidStorageTransfer - Unit (GUID: %u) not found or player can't interact with it.", GUID_LOPART(npcGuid));
+        TC_LOG_DEBUG("network", "WORLD: HandleVoidStorageTransfer - %s not found or player can't interact with it.", npcGuid.ToString().c_str());
         return;
     }
 
@@ -335,7 +335,7 @@ void WorldSession::HandleVoidStorageTransfer(WorldPacket& recvData)
             continue;
         }
 
-        VoidStorageItem itemVS(sObjectMgr->GenerateVoidStorageItemId(), item->GetEntry(), item->GetUInt64Value(ITEM_FIELD_CREATOR), item->GetItemRandomPropertyId(), item->GetItemSuffixFactor());
+        VoidStorageItem itemVS(sObjectMgr->GenerateVoidStorageItemId(), item->GetEntry(), item->GetGuidValue(ITEM_FIELD_CREATOR), item->GetItemRandomPropertyId(), item->GetItemSuffixFactor());
 
         uint8 slot = player->AddVoidStorageItem(itemVS);
 
@@ -370,7 +370,7 @@ void WorldSession::HandleVoidStorageTransfer(WorldPacket& recvData)
         }
 
         Item* item = player->StoreNewItem(dest, itemVS->ItemEntry, true, itemVS->ItemRandomPropertyId);
-        item->SetUInt64Value(ITEM_FIELD_CREATOR, uint64(itemVS->CreatorGuid));
+        item->SetGuidValue(ITEM_FIELD_CREATOR, itemVS->CreatorGuid);
         item->SetBinding(true);
         player->SendNewItem(item, 1, false, false, false);
 
@@ -387,7 +387,7 @@ void WorldSession::HandleVoidStorageTransfer(WorldPacket& recvData)
 
     for (uint8 i = 0; i < depositCount; ++i)
     {
-        ObjectGuid itemId = depositItems[i].first.ItemId;
+        ObjectGuid itemId(depositItems[i].first.ItemId);
         ObjectGuid creatorGuid = depositItems[i].first.CreatorGuid;
         data.WriteBit(creatorGuid[7]);
         data.WriteBit(itemId[7]);
@@ -409,7 +409,7 @@ void WorldSession::HandleVoidStorageTransfer(WorldPacket& recvData)
 
     for (uint8 i = 0; i < withdrawCount; ++i)
     {
-        ObjectGuid itemId = withdrawItems[i].ItemId;
+        ObjectGuid itemId(withdrawItems[i].ItemId);
         data.WriteBit(itemId[1]);
         data.WriteBit(itemId[7]);
         data.WriteBit(itemId[3]);
@@ -424,7 +424,7 @@ void WorldSession::HandleVoidStorageTransfer(WorldPacket& recvData)
 
     for (uint8 i = 0; i < withdrawCount; ++i)
     {
-        ObjectGuid itemId = withdrawItems[i].ItemId;
+        ObjectGuid itemId(withdrawItems[i].ItemId);
         data.WriteByteSeq(itemId[3]);
         data.WriteByteSeq(itemId[1]);
         data.WriteByteSeq(itemId[0]);
@@ -437,7 +437,7 @@ void WorldSession::HandleVoidStorageTransfer(WorldPacket& recvData)
 
     for (uint8 i = 0; i < depositCount; ++i)
     {
-        ObjectGuid itemId = depositItems[i].first.ItemId;
+        ObjectGuid itemId(depositItems[i].first.ItemId);
         ObjectGuid creatorGuid = depositItems[i].first.CreatorGuid;
 
         data << uint32(depositItems[i].first.ItemSuffixFactor);
@@ -521,7 +521,7 @@ void WorldSession::HandleVoidSwapItem(WorldPacket& recvData)
     Creature* unit = player->GetNPCIfCanInteractWith(npcGuid, UNIT_NPC_FLAG_VAULTKEEPER);
     if (!unit)
     {
-        TC_LOG_DEBUG("network", "WORLD: HandleVoidSwapItem - Unit (GUID: %u) not found or player can't interact with it.", GUID_LOPART(npcGuid));
+        TC_LOG_DEBUG("network", "WORLD: HandleVoidSwapItem - %s not found or player can't interact with it.", npcGuid.ToString().c_str());
         return;
     }
 
@@ -542,7 +542,7 @@ void WorldSession::HandleVoidSwapItem(WorldPacket& recvData)
     bool usedDestSlot = player->GetVoidStorageItem(newSlot) != NULL;
     ObjectGuid itemIdDest;
     if (usedDestSlot)
-        itemIdDest = player->GetVoidStorageItem(newSlot)->ItemId;
+        itemIdDest.Set(player->GetVoidStorageItem(newSlot)->ItemId);
 
     if (!player->SwapVoidStorageItem(oldSlot, newSlot))
     {
diff --git a/src/server/game/Instances/InstanceScript.cpp b/src/server/game/Instances/InstanceScript.cpp
index ec149c34431..bb02b114e48 100644
--- a/src/server/game/Instances/InstanceScript.cpp
+++ b/src/server/game/Instances/InstanceScript.cpp
@@ -52,6 +52,43 @@ bool InstanceScript::IsEncounterInProgress() const
     return false;
 }
 
+void InstanceScript::OnCreatureCreate(Creature* creature)
+{
+    AddObject(creature, true);
+    AddMinion(creature, true);
+}
+
+void InstanceScript::OnCreatureRemove(Creature* creature)
+{
+    AddObject(creature, false);
+    AddMinion(creature, false);
+}
+
+void InstanceScript::OnGameObjectCreate(GameObject* go)
+{
+    AddObject(go, true);
+    AddDoor(go, true);
+}
+
+void InstanceScript::OnGameObjectRemove(GameObject* go)
+{
+    AddObject(go, false);
+    AddDoor(go, false);
+}
+
+ObjectGuid InstanceScript::GetObjectGuid(uint32 type) const
+{
+    ObjectGuidMap::const_iterator i = _objectGuids.find(type);
+    if (i != _objectGuids.end())
+        return i->second;
+    return ObjectGuid::Empty;
+}
+
+ObjectGuid InstanceScript::GetGuidData(uint32 type) const
+{
+    return GetObjectGuid(type);
+}
+
 void InstanceScript::SetHeaders(std::string const& dataHeaders)
 {
     for (char header : dataHeaders)
@@ -83,6 +120,27 @@ void InstanceScript::LoadDoorData(const DoorData* data)
     TC_LOG_DEBUG("scripts", "InstanceScript::LoadDoorData: " UI64FMTD " doors loaded.", uint64(doors.size()));
 }
 
+void InstanceScript::LoadObjectData(ObjectData const* creatureData, ObjectData const* gameObjectData)
+{
+    if (creatureData)
+        LoadObjectData(creatureData, _creatureInfo);
+
+    if (gameObjectData)
+        LoadObjectData(gameObjectData, _gameObjectInfo);
+
+    TC_LOG_ERROR("scripts", "InstanceScript::LoadObjectData: " SZFMTD " objects loaded.", _creatureInfo.size() + _gameObjectInfo.size());
+}
+
+void InstanceScript::LoadObjectData(ObjectData const* data, ObjectInfoMap& objectInfo)
+{
+    while (data->entry)
+    {
+        ASSERT(objectInfo.find(data->entry) == objectInfo.end());
+        objectInfo[data->entry] = data->type;
+        ++data;
+    }
+}
+
 void InstanceScript::UpdateMinionState(Creature* minion, EncounterState state)
 {
     switch (state)
@@ -133,6 +191,32 @@ void InstanceScript::UpdateDoorState(GameObject* door)
     door->SetGoState(open ? GO_STATE_ACTIVE : GO_STATE_READY);
 }
 
+void InstanceScript::AddObject(Creature* obj, bool add)
+{
+    ObjectInfoMap::const_iterator j = _creatureInfo.find(obj->GetEntry());
+    if (j != _creatureInfo.end())
+        AddObject(obj, j->second, add);
+}
+
+void InstanceScript::AddObject(GameObject* obj, bool add)
+{
+    ObjectInfoMap::const_iterator j = _gameObjectInfo.find(obj->GetEntry());
+    if (j != _gameObjectInfo.end())
+        AddObject(obj, j->second, add);
+}
+
+void InstanceScript::AddObject(WorldObject* obj, uint32 type, bool add)
+{
+    if (add)
+        _objectGuids[type] = obj->GetGUID();
+    else
+    {
+        ObjectGuidMap::iterator i = _objectGuids.find(type);
+        if (i != _objectGuids.end() && i->second == obj->GetGUID())
+            _objectGuids.erase(i);
+    }
+}
+
 void InstanceScript::AddDoor(GameObject* door, bool add)
 {
     DoorInfoMapBounds range = doors.equal_range(door->GetEntry());
@@ -206,7 +290,7 @@ bool InstanceScript::SetBossState(uint32 id, EncounterState state)
                 return false;
 
             if (state == DONE)
-                for (MinionSet::iterator i = bossInfo->minion.begin(); i != bossInfo->minion.end(); ++i)
+                for (GuidSet::iterator i = bossInfo->minion.begin(); i != bossInfo->minion.end(); ++i)
                     if (Creature* minion = instance->GetCreature(*i))
                         if (minion->isWorldBoss() && minion->IsAlive())
                             return false;
@@ -216,11 +300,11 @@ bool InstanceScript::SetBossState(uint32 id, EncounterState state)
         }
 
         for (uint32 type = 0; type < MAX_DOOR_TYPES; ++type)
-            for (DoorSet::iterator i = bossInfo->door[type].begin(); i != bossInfo->door[type].end(); ++i)
+            for (GuidSet::iterator i = bossInfo->door[type].begin(); i != bossInfo->door[type].end(); ++i)
                 if (GameObject* door = instance->GetGameObject(*i))
                     UpdateDoorState(door);
 
-        for (MinionSet::iterator i = bossInfo->minion.begin(); i != bossInfo->minion.end(); ++i)
+        for (GuidSet::iterator i = bossInfo->minion.begin(); i != bossInfo->minion.end(); ++i)
             if (Creature* minion = instance->GetCreature(*i))
                 UpdateMinionState(minion, state);
 
@@ -308,7 +392,7 @@ void InstanceScript::WriteSaveDataBossStates(std::ostringstream& data)
         data << uint32(bossInfo.state) << ' ';
 }
 
-void InstanceScript::HandleGameObject(uint64 guid, bool open, GameObject* go /*= nullptr*/)
+void InstanceScript::HandleGameObject(ObjectGuid guid, bool open, GameObject* go /*= nullptr*/)
 {
     if (!go)
         go = instance->GetGameObject(guid);
@@ -318,7 +402,7 @@ void InstanceScript::HandleGameObject(uint64 guid, bool open, GameObject* go /*=
         TC_LOG_DEBUG("scripts", "InstanceScript: HandleGameObject failed");
 }
 
-void InstanceScript::DoUseDoorOrButton(uint64 guid, uint32 withRestoreTime /*= 0*/, bool useAlternativeState /*= false*/)
+void InstanceScript::DoUseDoorOrButton(ObjectGuid guid, uint32 withRestoreTime /*= 0*/, bool useAlternativeState /*= false*/)
 {
     if (!guid)
         return;
@@ -339,7 +423,7 @@ void InstanceScript::DoUseDoorOrButton(uint64 guid, uint32 withRestoreTime /*= 0
         TC_LOG_DEBUG("scripts", "InstanceScript: HandleGameObject failed");
 }
 
-void InstanceScript::DoRespawnGameObject(uint64 guid, uint32 timeToDespawn /*= MINUTE*/)
+void InstanceScript::DoRespawnGameObject(ObjectGuid guid, uint32 timeToDespawn /*= MINUTE*/)
 {
     if (GameObject* go = instance->GetGameObject(guid))
     {
@@ -480,7 +564,7 @@ void InstanceScript::SendEncounterUnit(uint32 type, Unit* unit /*= NULL*/, uint8
         case ENCOUNTER_FRAME_UPDATE_PRIORITY:
             if (!unit)
                 return;
-            data.append(unit->GetPackGUID());
+            data << unit->GetPackGUID();
             data << uint8(param1);
             break;
         case ENCOUNTER_FRAME_ADD_TIMER:
diff --git a/src/server/game/Instances/InstanceScript.h b/src/server/game/Instances/InstanceScript.h
index 5451849506e..1f190355b15 100644
--- a/src/server/game/Instances/InstanceScript.h
+++ b/src/server/game/Instances/InstanceScript.h
@@ -35,9 +35,6 @@ class Player;
 class GameObject;
 class Creature;
 
-typedef std::set<uint64> DoorSet;
-typedef std::set<uint64> MinionSet;
-
 enum EncounterFrameType
 {
     ENCOUNTER_FRAME_SET_COMBAT_RES_LIMIT    = 0,
@@ -102,12 +99,18 @@ struct MinionData
     uint32 entry, bossId;
 };
 
+struct ObjectData
+{
+    uint32 entry;
+    uint32 type;
+};
+
 struct BossInfo
 {
     BossInfo() : state(TO_BE_DECIDED) { }
     EncounterState state;
-    DoorSet door[MAX_DOOR_TYPES];
-    MinionSet minion;
+    GuidSet door[MAX_DOOR_TYPES];
+    GuidSet minion;
     BossBoundaryMap boundary;
 };
 
@@ -130,6 +133,8 @@ typedef std::multimap<uint32 /*entry*/, DoorInfo> DoorInfoMap;
 typedef std::pair<DoorInfoMap::const_iterator, DoorInfoMap::const_iterator> DoorInfoMapBounds;
 
 typedef std::map<uint32 /*entry*/, MinionInfo> MinionInfoMap;
+typedef std::map<uint32 /*type*/, ObjectGuid /*guid*/> ObjectGuidMap;
+typedef std::map<uint32 /*entry*/, uint32 /*type*/> ObjectInfoMap;
 
 class InstanceScript : public ZoneScript
 {
@@ -157,19 +162,39 @@ class InstanceScript : public ZoneScript
         // This is to prevent players from entering during boss encounters.
         virtual bool IsEncounterInProgress() const;
 
+        // Called when a creature/gameobject is added to map or removed from map.
+        // Insert/Remove objectguid to dynamic guid store
+        virtual void OnCreatureCreate(Creature* creature) override;
+        virtual void OnCreatureRemove(Creature* creature) override;
+
+        virtual void OnGameObjectCreate(GameObject* go) override;
+        virtual void OnGameObjectRemove(GameObject* go) override;
+
+        ObjectGuid GetObjectGuid(uint32 type) const;
+        virtual ObjectGuid GetGuidData(uint32 type) const override;
+
+        inline Creature* GetCreature(uint32 type)
+        {
+            return ObjectAccessor::GetObjectInMap<Creature>(GetObjectGuid(type), instance, nullptr);
+        }
+        inline GameObject* GetGameObject(uint32 type)
+        {
+            return ObjectAccessor::GetObjectInMap<GameObject>(GetObjectGuid(type), instance, nullptr);
+        }
+
         // Called when a player successfully enters the instance.
         virtual void OnPlayerEnter(Player* /*player*/) { }
 
         // Handle open / close objects
         // * use HandleGameObject(0, boolen, GO); in OnObjectCreate in instance scripts
         // * use HandleGameObject(GUID, boolen, NULL); in any other script
-        void HandleGameObject(uint64 guid, bool open, GameObject* go = nullptr);
+        void HandleGameObject(ObjectGuid guid, bool open, GameObject* go = nullptr);
 
         // Change active state of doors or buttons
-        void DoUseDoorOrButton(uint64 guid, uint32 withRestoreTime = 0, bool useAlternativeState = false);
+        void DoUseDoorOrButton(ObjectGuid guid, uint32 withRestoreTime = 0, bool useAlternativeState = false);
 
         // Respawns a GO having negative spawntimesecs in gameobject-table
-        void DoRespawnGameObject(uint64 guid, uint32 timeToDespawn = MINUTE);
+        void DoRespawnGameObject(ObjectGuid guid, uint32 timeToDespawn = MINUTE);
 
         // Sends world state update to all players in instance
         void DoUpdateWorldState(uint32 worldstateId, uint32 worldstateValue);
@@ -202,7 +227,7 @@ class InstanceScript : public ZoneScript
         virtual bool CheckAchievementCriteriaMeet(uint32 /*criteria_id*/, Player const* /*source*/, Unit const* /*target*/ = NULL, uint32 /*miscvalue1*/ = 0);
 
         // Checks boss requirements (one boss required to kill other)
-        virtual bool CheckRequiredBosses(uint32 /*bossId*/, Player const* /*player*/ = NULL) const { return true; }
+        virtual bool CheckRequiredBosses(uint32 /*bossId*/, Player const* /*player*/ = nullptr) const { return true; }
 
         // Checks encounter state at kill/spellcast
         void UpdateEncounterState(EncounterCreditType type, uint32 creditEntry, Unit* source);
@@ -225,6 +250,11 @@ class InstanceScript : public ZoneScript
         void SetBossNumber(uint32 number) { bosses.resize(number); }
         void LoadDoorData(DoorData const* data);
         void LoadMinionData(MinionData const* data);
+        void LoadObjectData(ObjectData const* creatureData, ObjectData const* gameObjectData);
+
+        void AddObject(Creature* obj, bool add);
+        void AddObject(GameObject* obj, bool add);
+        void AddObject(WorldObject* obj, uint32 type, bool add);
 
         void AddDoor(GameObject* door, bool add);
         void AddMinion(Creature* minion, bool add);
@@ -241,10 +271,15 @@ class InstanceScript : public ZoneScript
         virtual void WriteSaveDataMore(std::ostringstream& /*data*/) { }
 
     private:
+        static void LoadObjectData(ObjectData const* creatureData, ObjectInfoMap& objectInfo);
+
         std::vector<char> headers;
         std::vector<BossInfo> bosses;
         DoorInfoMap doors;
         MinionInfoMap minions;
+        ObjectInfoMap _creatureInfo;
+        ObjectInfoMap _gameObjectInfo;
+        ObjectGuidMap _objectGuids;
         uint32 completedEncounters; // completed encounter mask, bit indexes are DungeonEncounter.dbc boss numbers, used for packets
 };
 
diff --git a/src/server/game/Loot/LootMgr.cpp b/src/server/game/Loot/LootMgr.cpp
index 26d348737ab..92694ebc834 100644
--- a/src/server/game/Loot/LootMgr.cpp
+++ b/src/server/game/Loot/LootMgr.cpp
@@ -161,7 +161,7 @@ uint32 LootStore::LoadLootTable()
         if (group >= 1 << 7)                                     // it stored in 7 bit field
         {
             TC_LOG_ERROR("sql.sql", "Table '%s' entry %d item %d: group (%u) must be less %u - skipped", GetName(), entry, item, group, 1 << 7);
-            return false;
+            return 0;
         }
 
         LootStoreItem* storeitem = new LootStoreItem(item, chanceOrQuestChance, lootmode, group, mincountOrRef, maxcount);
@@ -620,8 +620,8 @@ void Loot::NotifyItemRemoved(uint8 lootIndex)
 {
     // notify all players that are looting this that the item was removed
     // convert the index to the slot the player sees
-    std::set<uint64>::iterator i_next;
-    for (std::set<uint64>::iterator i = PlayersLooting.begin(); i != PlayersLooting.end(); i = i_next)
+    GuidSet::iterator i_next;
+    for (GuidSet::iterator i = PlayersLooting.begin(); i != PlayersLooting.end(); i = i_next)
     {
         i_next = i;
         ++i_next;
@@ -635,8 +635,8 @@ void Loot::NotifyItemRemoved(uint8 lootIndex)
 void Loot::NotifyMoneyRemoved()
 {
     // notify all players that are looting this that the money was removed
-    std::set<uint64>::iterator i_next;
-    for (std::set<uint64>::iterator i = PlayersLooting.begin(); i != PlayersLooting.end(); i = i_next)
+    GuidSet::iterator i_next;
+    for (GuidSet::iterator i = PlayersLooting.begin(); i != PlayersLooting.end(); i = i_next)
     {
         i_next = i;
         ++i_next;
@@ -654,8 +654,8 @@ void Loot::NotifyQuestItemRemoved(uint8 questIndex)
     // (other questitems can be looted by each group member)
     // bit inefficient but isn't called often
 
-    std::set<uint64>::iterator i_next;
-    for (std::set<uint64>::iterator i = PlayersLooting.begin(); i != PlayersLooting.end(); i = i_next)
+    GuidSet::iterator i_next;
+    for (GuidSet::iterator i = PlayersLooting.begin(); i != PlayersLooting.end(); i = i_next)
     {
         i_next = i;
         ++i_next;
@@ -916,7 +916,7 @@ ByteBuffer& operator<<(ByteBuffer& b, LootView const& lv)
                                 continue;
                         }
                     }
-                    else if (l.roundRobinPlayer == 0 || lv.viewer->GetGUID() == l.roundRobinPlayer || !l.items[i].is_underthreshold)
+                    else if (l.roundRobinPlayer.IsEmpty() || lv.viewer->GetGUID() == l.roundRobinPlayer || !l.items[i].is_underthreshold)
                     {
                         // no round robin owner or he has released the loot
                         // or it IS the round robin group owner
@@ -940,7 +940,7 @@ ByteBuffer& operator<<(ByteBuffer& b, LootView const& lv)
             {
                 if (!l.items[i].is_looted && !l.items[i].freeforall && l.items[i].conditions.empty() && l.items[i].AllowedForPlayer(lv.viewer))
                 {
-                    if (l.roundRobinPlayer != 0 && lv.viewer->GetGUID() != l.roundRobinPlayer)
+                    if (!l.roundRobinPlayer.IsEmpty() && lv.viewer->GetGUID() != l.roundRobinPlayer)
                         // item shall not be displayed.
                         continue;
 
diff --git a/src/server/game/Loot/LootMgr.h b/src/server/game/Loot/LootMgr.h
index 09905572aae..673e5b6841e 100644
--- a/src/server/game/Loot/LootMgr.h
+++ b/src/server/game/Loot/LootMgr.h
@@ -24,7 +24,7 @@
 #include "RefManager.h"
 #include "SharedDefines.h"
 #include "ConditionMgr.h"
-
+#include "ObjectGuid.h"
 #include <map>
 #include <vector>
 #include <list>
@@ -318,7 +318,7 @@ struct Loot
     std::vector<LootItem> quest_items;
     uint32 gold;
     uint8 unlootedCount;
-    uint64 roundRobinPlayer;                                // GUID of the player having the Round-Robin ownership for the loot. If 0, round robin owner has released.
+    ObjectGuid roundRobinPlayer;                            // GUID of the player having the Round-Robin ownership for the loot. If 0, round robin owner has released.
     LootType loot_type;                                     // required for achievement system
     uint8 maxDuplicates;                                    // Max amount of items with the same entry that can drop (default is 1; on 25 man raid mode 3)
 
@@ -326,7 +326,7 @@ struct Loot
     //  Only set for inventory items that can be right-click looted
     uint32 containerID;
 
-    Loot(uint32 _gold = 0) : gold(_gold), unlootedCount(0), roundRobinPlayer(0), loot_type(LOOT_CORPSE), maxDuplicates(1), containerID(0) { }
+    Loot(uint32 _gold = 0) : gold(_gold), unlootedCount(0), roundRobinPlayer(), loot_type(LOOT_CORPSE), maxDuplicates(1), containerID(0) { }
     ~Loot() { clear(); }
 
     // For deleting items at loot removal since there is no backward interface to the Item()
@@ -359,7 +359,7 @@ struct Loot
         quest_items.clear();
         gold = 0;
         unlootedCount = 0;
-        roundRobinPlayer = 0;
+        roundRobinPlayer.Clear();
         loot_type = LOOT_NONE;
         i_LootValidatorRefManager.clearReferences();
     }
@@ -370,8 +370,8 @@ struct Loot
     void NotifyItemRemoved(uint8 lootIndex);
     void NotifyQuestItemRemoved(uint8 questIndex);
     void NotifyMoneyRemoved();
-    void AddLooter(uint64 GUID) { PlayersLooting.insert(GUID); }
-    void RemoveLooter(uint64 GUID) { PlayersLooting.erase(GUID); }
+    void AddLooter(ObjectGuid GUID) { PlayersLooting.insert(GUID); }
+    void RemoveLooter(ObjectGuid GUID) { PlayersLooting.erase(GUID); }
 
     void generateMoneyLoot(uint32 minAmount, uint32 maxAmount);
     bool FillLoot(uint32 lootId, LootStore const& store, Player* lootOwner, bool personal, bool noEmptyError = false, uint16 lootMode = LOOT_MODE_DEFAULT);
@@ -390,7 +390,7 @@ struct Loot
         QuestItemList* FillQuestLoot(Player* player);
         QuestItemList* FillNonQuestNonFFAConditionalLoot(Player* player, bool presentAtLooting);
 
-        std::set<uint64> PlayersLooting;
+        GuidSet PlayersLooting;
         QuestItemMap PlayerQuestItems;
         QuestItemMap PlayerFFAItems;
         QuestItemMap PlayerNonQuestNonFFAConditionalItems;
diff --git a/src/server/game/Mails/Mail.cpp b/src/server/game/Mails/Mail.cpp
index 2c65e363dd5..2459e468c25 100644
--- a/src/server/game/Mails/Mail.cpp
+++ b/src/server/game/Mails/Mail.cpp
@@ -130,11 +130,12 @@ void MailDraft::deleteIncludedItems(SQLTransaction& trans, bool inDB /*= false*/
 
 void MailDraft::SendReturnToSender(uint32 sender_acc, uint32 sender_guid, uint32 receiver_guid, SQLTransaction& trans)
 {
-    Player* receiver = ObjectAccessor::FindPlayer(MAKE_NEW_GUID(receiver_guid, 0, HIGHGUID_PLAYER));
+    ObjectGuid receiverGuid(HIGHGUID_PLAYER, receiver_guid);
+    Player* receiver = ObjectAccessor::FindPlayer(receiverGuid);
 
     uint32 rc_account = 0;
     if (!receiver)
-        rc_account = sObjectMgr->GetPlayerAccountIdByGUID(MAKE_NEW_GUID(receiver_guid, 0, HIGHGUID_PLAYER));
+        rc_account = sObjectMgr->GetPlayerAccountIdByGUID(receiverGuid);
 
     if (!receiver && !rc_account)                            // sender not exist
     {
diff --git a/src/server/game/Maps/Map.cpp b/src/server/game/Maps/Map.cpp
index 44e270d7625..ab50d16d8f5 100644
--- a/src/server/game/Maps/Map.cpp
+++ b/src/server/game/Maps/Map.cpp
@@ -159,7 +159,7 @@ void Map::LoadMap(int gx, int gy, bool reload)
 
         // load grid map for base map
         if (!m_parentMap->GridMaps[gx][gy])
-            m_parentMap->EnsureGridCreated(GridCoord(63-gx, 63-gy));
+            m_parentMap->EnsureGridCreated(GridCoord((MAX_NUMBER_OF_GRIDS - 1) - gx, (MAX_NUMBER_OF_GRIDS - 1) - gy));
 
         ((MapInstanced*)(m_parentMap))->AddGridMapReference(GridCoord(gx, gy));
         GridMaps[gx][gy] = m_parentMap->GridMaps[gx][gy];
@@ -305,7 +305,7 @@ void Map::SwitchGridContainers(Creature* obj, bool on)
     CellCoord p = Trinity::ComputeCellCoord(obj->GetPositionX(), obj->GetPositionY());
     if (!p.IsCoordValid())
     {
-        TC_LOG_ERROR("maps", "Map::SwitchGridContainers: Object " UI64FMTD " has invalid coordinates X:%f Y:%f grid cell [%u:%u]", obj->GetGUID(), obj->GetPositionX(), obj->GetPositionY(), p.x_coord, p.y_coord);
+        TC_LOG_ERROR("maps", "Map::SwitchGridContainers: Object %s has invalid coordinates X:%f Y:%f grid cell [%u:%u]", obj->GetGUID().ToString().c_str(), obj->GetPositionX(), obj->GetPositionY(), p.x_coord, p.y_coord);
         return;
     }
 
@@ -313,7 +313,7 @@ void Map::SwitchGridContainers(Creature* obj, bool on)
     if (!IsGridLoaded(GridCoord(cell.data.Part.grid_x, cell.data.Part.grid_y)))
         return;
 
-    TC_LOG_DEBUG("maps", "Switch object " UI64FMTD " from grid[%u, %u] %u", obj->GetGUID(), cell.data.Part.grid_x, cell.data.Part.grid_y, on);
+    TC_LOG_DEBUG("maps", "Switch object %s from grid[%u, %u] %u", obj->GetGUID().ToString().c_str(), cell.data.Part.grid_x, cell.data.Part.grid_y, on);
     NGridType *ngrid = getNGrid(cell.GridX(), cell.GridY());
     ASSERT(ngrid != NULL);
 
@@ -342,7 +342,7 @@ void Map::SwitchGridContainers(GameObject* obj, bool on)
     CellCoord p = Trinity::ComputeCellCoord(obj->GetPositionX(), obj->GetPositionY());
     if (!p.IsCoordValid())
     {
-        TC_LOG_ERROR("maps", "Map::SwitchGridContainers: Object " UI64FMTD " has invalid coordinates X:%f Y:%f grid cell [%u:%u]", obj->GetGUID(), obj->GetPositionX(), obj->GetPositionY(), p.x_coord, p.y_coord);
+        TC_LOG_ERROR("maps", "Map::SwitchGridContainers: Object %s has invalid coordinates X:%f Y:%f grid cell [%u:%u]", obj->GetGUID().ToString().c_str(), obj->GetPositionX(), obj->GetPositionY(), p.x_coord, p.y_coord);
         return;
     }
 
@@ -350,7 +350,7 @@ void Map::SwitchGridContainers(GameObject* obj, bool on)
     if (!IsGridLoaded(GridCoord(cell.data.Part.grid_x, cell.data.Part.grid_y)))
         return;
 
-    TC_LOG_DEBUG("maps", "Switch object " UI64FMTD " from grid[%u, %u] %u", obj->GetGUID(), cell.data.Part.grid_x, cell.data.Part.grid_y, on);
+    TC_LOG_DEBUG("maps", "Switch object %s from grid[%u, %u] %u", obj->GetGUID().ToString().c_str(), cell.data.Part.grid_x, cell.data.Part.grid_y, on);
     NGridType *ngrid = getNGrid(cell.GridX(), cell.GridY());
     ASSERT(ngrid != NULL);
 
@@ -426,7 +426,7 @@ void Map::EnsureGridLoadedForActiveObject(const Cell &cell, WorldObject* object)
     // refresh grid state & timer
     if (grid->GetGridState() != GRID_STATE_ACTIVE)
     {
-        TC_LOG_DEBUG("maps", "Active object " UI64FMTD " triggers loading of grid [%u, %u] on map %u", object->GetGUID(), cell.GridX(), cell.GridY(), GetId());
+        TC_LOG_DEBUG("maps", "Active object %s triggers loading of grid [%u, %u] on map %u", object->GetGUID().ToString().c_str(), cell.GridX(), cell.GridY(), GetId());
         ResetGridExpiry(*grid, 0.1f);
         grid->SetGridState(GRID_STATE_ACTIVE);
     }
@@ -524,7 +524,7 @@ bool Map::AddToMap(T* obj)
     ASSERT(cellCoord.IsCoordValid());
     if (!cellCoord.IsCoordValid())
     {
-        TC_LOG_ERROR("maps", "Map::Add: Object " UI64FMTD " has invalid coordinates X:%f Y:%f grid cell [%u:%u]", obj->GetGUID(), obj->GetPositionX(), obj->GetPositionY(), cellCoord.x_coord, cellCoord.y_coord);
+        TC_LOG_ERROR("maps", "Map::Add: Object %s has invalid coordinates X:%f Y:%f grid cell [%u:%u]", obj->GetGUID().ToString().c_str(), obj->GetPositionX(), obj->GetPositionY(), cellCoord.x_coord, cellCoord.y_coord);
         return false; //Should delete object
     }
 
@@ -534,7 +534,7 @@ bool Map::AddToMap(T* obj)
     else
         EnsureGridCreated(GridCoord(cell.GridX(), cell.GridY()));
     AddToGrid(obj, cell);
-    TC_LOG_DEBUG("maps", "Object %u enters grid[%u, %u]", GUID_LOPART(obj->GetGUID()), cell.GridX(), cell.GridY());
+    TC_LOG_DEBUG("maps", "Object %s enters grid[%u, %u]", obj->GetGUID().ToString().c_str(), cell.GridX(), cell.GridY());
 
     //Must already be set before AddToMap. Usually during obj->Create.
     //obj->SetMap(this);
@@ -561,7 +561,7 @@ bool Map::AddToMap(Transport* obj)
     CellCoord cellCoord = Trinity::ComputeCellCoord(obj->GetPositionX(), obj->GetPositionY());
     if (!cellCoord.IsCoordValid())
     {
-        TC_LOG_ERROR("maps", "Map::Add: Object " UI64FMTD " has invalid coordinates X:%f Y:%f grid cell [%u:%u]", obj->GetGUID(), obj->GetPositionX(), obj->GetPositionY(), cellCoord.x_coord, cellCoord.y_coord);
+        TC_LOG_ERROR("maps", "Map::Add: Object %s has invalid coordinates X:%f Y:%f grid cell [%u:%u]", obj->GetGUID().ToString().c_str(), obj->GetPositionX(), obj->GetPositionY(), cellCoord.x_coord, cellCoord.y_coord);
         return false; //Should delete object
     }
 
@@ -1755,8 +1755,8 @@ uint16 GridMap::getArea(float x, float y) const
     if (!_areaMap)
         return _gridArea;
 
-    x = 16 * (32 - x/SIZE_OF_GRIDS);
-    y = 16 * (32 - y/SIZE_OF_GRIDS);
+    x = 16 * (CENTER_GRID_ID - x/SIZE_OF_GRIDS);
+    y = 16 * (CENTER_GRID_ID - y/SIZE_OF_GRIDS);
     int lx = (int)x & 15;
     int ly = (int)y & 15;
     return _areaMap[lx*16 + ly];
@@ -1772,8 +1772,8 @@ float GridMap::getHeightFromFloat(float x, float y) const
     if (!m_V8 || !m_V9)
         return _gridHeight;
 
-    x = MAP_RESOLUTION * (32 - x/SIZE_OF_GRIDS);
-    y = MAP_RESOLUTION * (32 - y/SIZE_OF_GRIDS);
+    x = MAP_RESOLUTION * (CENTER_GRID_ID - x/SIZE_OF_GRIDS);
+    y = MAP_RESOLUTION * (CENTER_GRID_ID - y/SIZE_OF_GRIDS);
 
     int x_int = (int)x;
     int y_int = (int)y;
@@ -1854,8 +1854,8 @@ float GridMap::getHeightFromUint8(float x, float y) const
     if (!m_uint8_V8 || !m_uint8_V9)
         return _gridHeight;
 
-    x = MAP_RESOLUTION * (32 - x/SIZE_OF_GRIDS);
-    y = MAP_RESOLUTION * (32 - y/SIZE_OF_GRIDS);
+    x = MAP_RESOLUTION * (CENTER_GRID_ID - x/SIZE_OF_GRIDS);
+    y = MAP_RESOLUTION * (CENTER_GRID_ID - y/SIZE_OF_GRIDS);
 
     int x_int = (int)x;
     int y_int = (int)y;
@@ -1921,8 +1921,8 @@ float GridMap::getHeightFromUint16(float x, float y) const
     if (!m_uint16_V8 || !m_uint16_V9)
         return _gridHeight;
 
-    x = MAP_RESOLUTION * (32 - x/SIZE_OF_GRIDS);
-    y = MAP_RESOLUTION * (32 - y/SIZE_OF_GRIDS);
+    x = MAP_RESOLUTION * (CENTER_GRID_ID - x/SIZE_OF_GRIDS);
+    y = MAP_RESOLUTION * (CENTER_GRID_ID - y/SIZE_OF_GRIDS);
 
     int x_int = (int)x;
     int y_int = (int)y;
@@ -1988,8 +1988,8 @@ float GridMap::getLiquidLevel(float x, float y) const
     if (!_liquidMap)
         return _liquidLevel;
 
-    x = MAP_RESOLUTION * (32 - x/SIZE_OF_GRIDS);
-    y = MAP_RESOLUTION * (32 - y/SIZE_OF_GRIDS);
+    x = MAP_RESOLUTION * (CENTER_GRID_ID - x/SIZE_OF_GRIDS);
+    y = MAP_RESOLUTION * (CENTER_GRID_ID - y/SIZE_OF_GRIDS);
 
     int cx_int = ((int)x & (MAP_RESOLUTION-1)) - _liquidOffY;
     int cy_int = ((int)y & (MAP_RESOLUTION-1)) - _liquidOffX;
@@ -2008,8 +2008,8 @@ uint8 GridMap::getTerrainType(float x, float y) const
     if (!_liquidFlags)
         return 0;
 
-    x = 16 * (32 - x/SIZE_OF_GRIDS);
-    y = 16 * (32 - y/SIZE_OF_GRIDS);
+    x = 16 * (CENTER_GRID_ID - x/SIZE_OF_GRIDS);
+    y = 16 * (CENTER_GRID_ID - y/SIZE_OF_GRIDS);
     int lx = (int)x & 15;
     int ly = (int)y & 15;
     return _liquidFlags[lx*16 + ly];
@@ -2023,8 +2023,8 @@ inline ZLiquidStatus GridMap::getLiquidStatus(float x, float y, float z, uint8 R
         return LIQUID_MAP_NO_WATER;
 
     // Get cell
-    float cx = MAP_RESOLUTION * (32 - x/SIZE_OF_GRIDS);
-    float cy = MAP_RESOLUTION * (32 - y/SIZE_OF_GRIDS);
+    float cx = MAP_RESOLUTION * (CENTER_GRID_ID - x/SIZE_OF_GRIDS);
+    float cy = MAP_RESOLUTION * (CENTER_GRID_ID - y/SIZE_OF_GRIDS);
 
     int x_int = (int)cx & (MAP_RESOLUTION-1);
     int y_int = (int)cy & (MAP_RESOLUTION-1);
@@ -2114,11 +2114,11 @@ inline ZLiquidStatus GridMap::getLiquidStatus(float x, float y, float z, uint8 R
 inline GridMap* Map::GetGrid(float x, float y)
 {
     // half opt method
-    int gx=(int)(32-x/SIZE_OF_GRIDS);                       //grid x
-    int gy=(int)(32-y/SIZE_OF_GRIDS);                       //grid y
+    int gx=(int)(CENTER_GRID_ID - x/SIZE_OF_GRIDS);                       //grid x
+    int gy=(int)(CENTER_GRID_ID - y/SIZE_OF_GRIDS);                       //grid y
 
     // ensure GridMap is loaded
-    EnsureGridCreated(GridCoord(63-gx, 63-gy));
+    EnsureGridCreated(GridCoord((MAX_NUMBER_OF_GRIDS - 1) - gx, (MAX_NUMBER_OF_GRIDS - 1) - gy));
 
     return GridMaps[gx][gy];
 }
@@ -2967,7 +2967,7 @@ bool InstanceMap::AddPlayerToMap(Player* player)
                     InstanceGroupBind* groupBind = group->GetBoundInstance(this);
                     if (playerBind && playerBind->save != mapSave)
                     {
-                        TC_LOG_ERROR("maps", "InstanceMap::Add: player %s(%d) is being put into instance %s %d, %d, %d, %d, %d, %d but he is in group %d and is bound to instance %d, %d, %d, %d, %d, %d!", player->GetName().c_str(), player->GetGUIDLow(), GetMapName(), mapSave->GetMapId(), mapSave->GetInstanceId(), mapSave->GetDifficulty(), mapSave->GetPlayerCount(), mapSave->GetGroupCount(), mapSave->CanReset(), GUID_LOPART(group->GetLeaderGUID()), playerBind->save->GetMapId(), playerBind->save->GetInstanceId(), playerBind->save->GetDifficulty(), playerBind->save->GetPlayerCount(), playerBind->save->GetGroupCount(), playerBind->save->CanReset());
+                        TC_LOG_ERROR("maps", "InstanceMap::Add: player %s(%d) is being put into instance %s %d, %d, %d, %d, %d, %d but he is in group %d and is bound to instance %d, %d, %d, %d, %d, %d!", player->GetName().c_str(), player->GetGUIDLow(), GetMapName(), mapSave->GetMapId(), mapSave->GetInstanceId(), mapSave->GetDifficulty(), mapSave->GetPlayerCount(), mapSave->GetGroupCount(), mapSave->CanReset(), group->GetLeaderGUID().GetCounter(), playerBind->save->GetMapId(), playerBind->save->GetInstanceId(), playerBind->save->GetDifficulty(), playerBind->save->GetPlayerCount(), playerBind->save->GetGroupCount(), playerBind->save->CanReset());
                         if (groupBind)
                             TC_LOG_ERROR("maps", "InstanceMap::Add: the group is bound to the instance %s %d, %d, %d, %d, %d, %d", GetMapName(), groupBind->save->GetMapId(), groupBind->save->GetInstanceId(), groupBind->save->GetDifficulty(), groupBind->save->GetPlayerCount(), groupBind->save->GetGroupCount(), groupBind->save->CanReset());
                         //ASSERT(false);
@@ -2981,7 +2981,7 @@ bool InstanceMap::AddPlayerToMap(Player* player)
                         // cannot jump to a different instance without resetting it
                         if (groupBind->save != mapSave)
                         {
-                            TC_LOG_ERROR("maps", "InstanceMap::Add: player %s(%d) is being put into instance %d, %d, %d but he is in group %d which is bound to instance %d, %d, %d!", player->GetName().c_str(), player->GetGUIDLow(), mapSave->GetMapId(), mapSave->GetInstanceId(), mapSave->GetDifficulty(), GUID_LOPART(group->GetLeaderGUID()), groupBind->save->GetMapId(), groupBind->save->GetInstanceId(), groupBind->save->GetDifficulty());
+                            TC_LOG_ERROR("maps", "InstanceMap::Add: player %s(%d) is being put into instance %d, %d, %d but he is in group %d which is bound to instance %d, %d, %d!", player->GetName().c_str(), player->GetGUIDLow(), mapSave->GetMapId(), mapSave->GetInstanceId(), mapSave->GetDifficulty(), group->GetLeaderGUID().GetCounter(), groupBind->save->GetMapId(), groupBind->save->GetInstanceId(), groupBind->save->GetDifficulty());
                             TC_LOG_ERROR("maps", "MapSave players: %d, group count: %d", mapSave->GetPlayerCount(), mapSave->GetGroupCount());
                             if (groupBind->save)
                                 TC_LOG_ERROR("maps", "GroupBind save players: %d, group count: %d", groupBind->save->GetPlayerCount(), groupBind->save->GetGroupCount());
@@ -3085,7 +3085,7 @@ void InstanceMap::CreateInstanceData(bool load)
             Field* fields = result->Fetch();
             std::string data = fields[0].GetString();
             i_data->SetCompletedEncountersMask(fields[1].GetUInt32());
-            if (data != "")
+            if (!data.empty())
             {
                 TC_LOG_DEBUG("maps", "Loading instance data for `%s` with id %u", sObjectMgr->GetScriptName(i_script_id), i_InstanceId);
                 i_data->Load(data.c_str());
@@ -3296,26 +3296,26 @@ void BattlegroundMap::RemoveAllPlayers()
                     player->TeleportTo(player->GetBattlegroundEntryPoint());
 }
 
-Creature* Map::GetCreature(uint64 guid)
+Creature* Map::GetCreature(ObjectGuid guid)
 {
     return ObjectAccessor::GetObjectInMap(guid, this, (Creature*)NULL);
 }
 
-GameObject* Map::GetGameObject(uint64 guid)
+GameObject* Map::GetGameObject(ObjectGuid guid)
 {
     return ObjectAccessor::GetObjectInMap(guid, this, (GameObject*)NULL);
 }
 
-Transport* Map::GetTransport(uint64 guid)
+Transport* Map::GetTransport(ObjectGuid guid)
 {
-    if (GUID_HIPART(guid) != HIGHGUID_MO_TRANSPORT)
+    if (!guid.IsMOTransport())
         return NULL;
 
     GameObject* go = GetGameObject(guid);
     return go ? go->ToTransport() : NULL;
 }
 
-DynamicObject* Map::GetDynamicObject(uint64 guid)
+DynamicObject* Map::GetDynamicObject(ObjectGuid guid)
 {
     return ObjectAccessor::GetObjectInMap(guid, this, (DynamicObject*)NULL);
 }
@@ -3440,15 +3440,15 @@ void Map::DeleteRespawnTimesInDB(uint16 mapId, uint32 instanceId)
     CharacterDatabase.Execute(stmt);
 }
 
-time_t Map::GetLinkedRespawnTime(uint64 guid) const
+time_t Map::GetLinkedRespawnTime(ObjectGuid guid) const
 {
-    uint64 linkedGuid = sObjectMgr->GetLinkedRespawnGuid(guid);
-    switch (GUID_HIPART(linkedGuid))
+    ObjectGuid linkedGuid = sObjectMgr->GetLinkedRespawnGuid(guid);
+    switch (linkedGuid.GetHigh())
     {
         case HIGHGUID_UNIT:
-            return GetCreatureRespawnTime(GUID_LOPART(linkedGuid));
+            return GetCreatureRespawnTime(linkedGuid.GetCounter());
         case HIGHGUID_GAMEOBJECT:
-            return GetGORespawnTime(GUID_LOPART(linkedGuid));
+            return GetGORespawnTime(linkedGuid.GetCounter());
         default:
             break;
     }
diff --git a/src/server/game/Maps/Map.h b/src/server/game/Maps/Map.h
index a92c78ae951..c0b50b078d8 100644
--- a/src/server/game/Maps/Map.h
+++ b/src/server/game/Maps/Map.h
@@ -30,6 +30,7 @@
 #include "MapRefManager.h"
 #include "DynamicTree.h"
 #include "GameObjectModel.h"
+#include "ObjectGuid.h"
 
 #include <bitset>
 #include <list>
@@ -56,9 +57,9 @@ namespace Trinity { struct ObjectUpdater; }
 
 struct ScriptAction
 {
-    uint64 sourceGUID;
-    uint64 targetGUID;
-    uint64 ownerGUID;                                       ///> owner of source if source is item
+    ObjectGuid sourceGUID;
+    ObjectGuid targetGUID;
+    ObjectGuid ownerGUID;                                   ///> owner of source if source is item
     ScriptInfo const* script;                               ///> pointer to static script data
 };
 
@@ -451,10 +452,10 @@ class Map : public GridRefManager<NGridType>
 
         TempSummon* SummonCreature(uint32 entry, Position const& pos, SummonPropertiesEntry const* properties = NULL, uint32 duration = 0, Unit* summoner = NULL, uint32 spellId = 0, uint32 vehId = 0);
         void SummonCreatureGroup(uint8 group, std::list<TempSummon*>* list = NULL);
-        Creature* GetCreature(uint64 guid);
-        GameObject* GetGameObject(uint64 guid);
-        Transport* GetTransport(uint64 guid);
-        DynamicObject* GetDynamicObject(uint64 guid);
+        Creature* GetCreature(ObjectGuid guid);
+        GameObject* GetGameObject(ObjectGuid guid);
+        Transport* GetTransport(ObjectGuid guid);
+        DynamicObject* GetDynamicObject(ObjectGuid guid);
 
         MapInstanced* ToMapInstanced() { if (Instanceable()) return reinterpret_cast<MapInstanced*>(this); return NULL; }
         MapInstanced const* ToMapInstanced() const { if (Instanceable()) return reinterpret_cast<MapInstanced const*>(this); return NULL; }
@@ -478,7 +479,7 @@ class Map : public GridRefManager<NGridType>
         /*
             RESPAWN TIMES
         */
-        time_t GetLinkedRespawnTime(uint64 guid) const;
+        time_t GetLinkedRespawnTime(ObjectGuid guid) const;
         time_t GetCreatureRespawnTime(uint32 dbGuid) const
         {
             std::unordered_map<uint32 /*dbGUID*/, time_t>::const_iterator itr = _creatureRespawnTimes.find(dbGuid);
diff --git a/src/server/game/Maps/MapInstanced.h b/src/server/game/Maps/MapInstanced.h
index 614764dbba3..ecf7c0a28fc 100644
--- a/src/server/game/Maps/MapInstanced.h
+++ b/src/server/game/Maps/MapInstanced.h
@@ -50,14 +50,14 @@ class MapInstanced : public Map
         void AddGridMapReference(const GridCoord &p)
         {
             ++GridMapReference[p.x_coord][p.y_coord];
-            SetUnloadReferenceLock(GridCoord(63-p.x_coord, 63-p.y_coord), true);
+            SetUnloadReferenceLock(GridCoord((MAX_NUMBER_OF_GRIDS - 1) - p.x_coord, (MAX_NUMBER_OF_GRIDS - 1) - p.y_coord), true);
         }
 
         void RemoveGridMapReference(GridCoord const& p)
         {
             --GridMapReference[p.x_coord][p.y_coord];
             if (!GridMapReference[p.x_coord][p.y_coord])
-                SetUnloadReferenceLock(GridCoord(63-p.x_coord, 63-p.y_coord), false);
+                SetUnloadReferenceLock(GridCoord((MAX_NUMBER_OF_GRIDS - 1) - p.x_coord, (MAX_NUMBER_OF_GRIDS - 1) - p.y_coord), false);
         }
 
         InstancedMaps &GetInstancedMaps() { return m_InstancedMaps; }
diff --git a/src/server/game/Maps/MapManager.cpp b/src/server/game/Maps/MapManager.cpp
index cc408988428..ac35b94575c 100644
--- a/src/server/game/Maps/MapManager.cpp
+++ b/src/server/game/Maps/MapManager.cpp
@@ -261,8 +261,8 @@ bool MapManager::ExistMapAndVMap(uint32 mapid, float x, float y)
 {
     GridCoord p = Trinity::ComputeGridCoord(x, y);
 
-    int gx=63-p.x_coord;
-    int gy=63-p.y_coord;
+    int gx = (MAX_NUMBER_OF_GRIDS - 1) - p.x_coord;
+    int gy = (MAX_NUMBER_OF_GRIDS - 1) - p.y_coord;
 
     return Map::ExistMap(mapid, gx, gy) && Map::ExistVMap(mapid, gx, gy);
 }
diff --git a/src/server/game/Maps/ZoneScript.h b/src/server/game/Maps/ZoneScript.h
index 5925806db75..9b1f7622b54 100644
--- a/src/server/game/Maps/ZoneScript.h
+++ b/src/server/game/Maps/ZoneScript.h
@@ -41,6 +41,9 @@ class ZoneScript
         virtual void OnUnitDeath(Unit*) { }
 
         //All-purpose data storage 64 bit
+        virtual ObjectGuid GetGuidData(uint32 /*DataId*/) const { return ObjectGuid::Empty; }
+        virtual void SetGuidData(uint32 /*DataId*/, ObjectGuid /*Value*/) { }
+
         virtual uint64 GetData64(uint32 /*DataId*/) const { return 0; }
         virtual void SetData64(uint32 /*DataId*/, uint64 /*Value*/) { }
 
diff --git a/src/server/game/Miscellaneous/Language.h b/src/server/game/Miscellaneous/Language.h
index dc5e28d3308..fe38c0dff62 100644
--- a/src/server/game/Miscellaneous/Language.h
+++ b/src/server/game/Miscellaneous/Language.h
@@ -1202,8 +1202,5 @@ enum TrinityStrings
 
     LANG_NPCINFO_INHABIT_TYPE                     = 11008,
     LANG_NPCINFO_FLAGS_EXTRA                      = 11009
-
-    // NOT RESERVED IDS                   12000-1999999999
-    // For other tables maybe             2000010000-2147483647 (max index)
 };
 #endif
diff --git a/src/server/game/Movement/MotionMaster.cpp b/src/server/game/Movement/MotionMaster.cpp
index c0d20c20639..aec90fa2770 100644
--- a/src/server/game/Movement/MotionMaster.cpp
+++ b/src/server/game/Movement/MotionMaster.cpp
@@ -412,7 +412,7 @@ void MotionMaster::MoveFall(uint32 id /*=0*/)
     Mutate(new EffectMovementGenerator(id), MOTION_SLOT_CONTROLLED);
 }
 
-void MotionMaster::MoveCharge(float x, float y, float z, float speed, uint32 id, bool generatePath)
+void MotionMaster::MoveCharge(float x, float y, float z, float speed /*= SPEED_CHARGE*/, uint32 id /*= EVENT_CHARGE*/, bool generatePath /*= false*/)
 {
     if (Impl[MOTION_SLOT_CONTROLLED] && Impl[MOTION_SLOT_CONTROLLED]->GetMovementGeneratorType() != DISTRACT_MOTION_TYPE)
         return;
@@ -430,16 +430,16 @@ void MotionMaster::MoveCharge(float x, float y, float z, float speed, uint32 id,
     }
 }
 
-void MotionMaster::MoveCharge(PathGenerator const& path)
+void MotionMaster::MoveCharge(PathGenerator const& path, float speed /*= SPEED_CHARGE*/)
 {
     G3D::Vector3 dest = path.GetActualEndPosition();
 
-    MoveCharge(dest.x, dest.y, dest.z, SPEED_CHARGE, EVENT_CHARGE_PREPATH);
+    MoveCharge(dest.x, dest.y, dest.z, speed, EVENT_CHARGE_PREPATH);
 
     // Charge movement is not started when using EVENT_CHARGE_PREPATH
     Movement::MoveSplineInit init(_owner);
     init.MovebyPath(path.GetPath());
-    init.SetVelocity(SPEED_CHARGE);
+    init.SetVelocity(speed);
     init.Launch();
 }
 
diff --git a/src/server/game/Movement/MotionMaster.h b/src/server/game/Movement/MotionMaster.h
index aabb117ef50..e162e45d962 100644
--- a/src/server/game/Movement/MotionMaster.h
+++ b/src/server/game/Movement/MotionMaster.h
@@ -178,7 +178,7 @@ class MotionMaster //: private std::stack<MovementGenerator *>
         void MoveTakeoff(uint32 id, Position const& pos);
 
         void MoveCharge(float x, float y, float z, float speed = SPEED_CHARGE, uint32 id = EVENT_CHARGE, bool generatePath = false);
-        void MoveCharge(PathGenerator const& path);
+        void MoveCharge(PathGenerator const& path, float speed = SPEED_CHARGE);
         void MoveKnockbackFrom(float srcX, float srcY, float speedXY, float speedZ);
         void MoveJumpTo(float angle, float speedXY, float speedZ);
         void MoveJump(Position const& pos, float speedXY, float speedZ, uint32 id = EVENT_JUMP)
diff --git a/src/server/game/Movement/MovementGenerators/FleeingMovementGenerator.h b/src/server/game/Movement/MovementGenerators/FleeingMovementGenerator.h
index c3bcfffb2a7..f2ff4c6839d 100755
--- a/src/server/game/Movement/MovementGenerators/FleeingMovementGenerator.h
+++ b/src/server/game/Movement/MovementGenerators/FleeingMovementGenerator.h
@@ -25,7 +25,7 @@ template<class T>
 class FleeingMovementGenerator : public MovementGeneratorMedium< T, FleeingMovementGenerator<T> >
 {
     public:
-        FleeingMovementGenerator(uint64 fright) : i_frightGUID(fright), i_nextCheckTime(0) { }
+        FleeingMovementGenerator(ObjectGuid fright) : i_frightGUID(fright), i_nextCheckTime(0) { }
 
         void DoInitialize(T*);
         void DoFinalize(T*);
@@ -38,14 +38,14 @@ class FleeingMovementGenerator : public MovementGeneratorMedium< T, FleeingMovem
         void _setTargetLocation(T*);
         void _getPoint(T*, float &x, float &y, float &z);
 
-        uint64 i_frightGUID;
+        ObjectGuid i_frightGUID;
         TimeTracker i_nextCheckTime;
 };
 
 class TimedFleeingMovementGenerator : public FleeingMovementGenerator<Creature>
 {
     public:
-        TimedFleeingMovementGenerator(uint64 fright, uint32 time) :
+        TimedFleeingMovementGenerator(ObjectGuid fright, uint32 time) :
             FleeingMovementGenerator<Creature>(fright),
             i_totalFleeTime(time) { }
 
diff --git a/src/server/game/Movement/MovementGenerators/WaypointMovementGenerator.cpp b/src/server/game/Movement/MovementGenerators/WaypointMovementGenerator.cpp
index 8cde9876ca1..b42bfe80a60 100755
--- a/src/server/game/Movement/MovementGenerators/WaypointMovementGenerator.cpp
+++ b/src/server/game/Movement/MovementGenerators/WaypointMovementGenerator.cpp
@@ -78,7 +78,7 @@ void WaypointMovementGenerator<Creature>::OnArrived(Creature* creature)
 
     if (i_path->at(i_currentNode)->event_id && urand(0, 99) < i_path->at(i_currentNode)->event_chance)
     {
-        TC_LOG_DEBUG("maps.script", "Creature movement start script %u at point %u for " UI64FMTD ".", i_path->at(i_currentNode)->event_id, i_currentNode, creature->GetGUID());
+        TC_LOG_DEBUG("maps.script", "Creature movement start script %u at point %u for %s.", i_path->at(i_currentNode)->event_id, i_currentNode, creature->GetGUID().ToString().c_str());
         creature->ClearUnitState(UNIT_STATE_ROAMING_MOVE);
         creature->GetMap()->ScriptsStart(sWaypointScripts, i_path->at(i_currentNode)->event_id, creature, NULL);
     }
diff --git a/src/server/game/Movement/Spline/MoveSplineInit.cpp b/src/server/game/Movement/Spline/MoveSplineInit.cpp
index e1a15fa52b5..937ce90b23b 100644
--- a/src/server/game/Movement/Spline/MoveSplineInit.cpp
+++ b/src/server/game/Movement/Spline/MoveSplineInit.cpp
@@ -116,11 +116,11 @@ namespace Movement
         move_spline.Initialize(args);
 
         WorldPacket data(SMSG_MONSTER_MOVE, 64);
-        data.append(unit->GetPackGUID());
+        data << unit->GetPackGUID();
         if (unit->GetTransGUID())
         {
             data.SetOpcode(SMSG_MONSTER_MOVE_TRANSPORT);
-            data.appendPackGUID(unit->GetTransGUID());
+            data << unit->GetTransGUID().WriteAsPacked();
             data << int8(unit->GetTransSeat());
         }
 
@@ -162,11 +162,11 @@ namespace Movement
         move_spline.Initialize(args);
 
         WorldPacket data(SMSG_MONSTER_MOVE, 64);
-        data.append(unit->GetPackGUID());
+        data << unit->GetPackGUID();
         if (transport)
         {
             data.SetOpcode(SMSG_MONSTER_MOVE_TRANSPORT);
-            data.appendPackGUID(unit->GetTransGUID());
+            data << unit->GetTransGUID().WriteAsPacked();
             data << int8(unit->GetTransSeat());
         }
 
@@ -188,7 +188,7 @@ namespace Movement
     void MoveSplineInit::SetFacing(const Unit* target)
     {
         args.flags.EnableFacingTarget();
-        args.facing.target = target->GetGUID();
+        args.facing.target = target->GetGUID().GetRawValue();
     }
 
     void MoveSplineInit::SetFacing(float angle)
diff --git a/src/server/game/Movement/Spline/MovementPacketBuilder.cpp b/src/server/game/Movement/Spline/MovementPacketBuilder.cpp
index 0793e51b164..fa44c19c354 100644
--- a/src/server/game/Movement/Spline/MovementPacketBuilder.cpp
+++ b/src/server/game/Movement/Spline/MovementPacketBuilder.cpp
@@ -161,7 +161,7 @@ namespace Movement
         {
             case MoveSplineFlag::Final_Target:
             {
-                ObjectGuid targetGuid = moveSpline.facing.target;
+                ObjectGuid targetGuid(moveSpline.facing.target);
                 data.WriteBits(2, 2);
                 data.WriteBit(targetGuid[4]);
                 data.WriteBit(targetGuid[3]);
@@ -203,7 +203,7 @@ namespace Movement
                 data << moveSpline.facing.angle;
             else if (splineFlags.final_target)
             {
-                ObjectGuid facingGuid = moveSpline.facing.target;
+                ObjectGuid facingGuid(moveSpline.facing.target);
                 data.WriteByteSeq(facingGuid[5]);
                 data.WriteByteSeq(facingGuid[3]);
                 data.WriteByteSeq(facingGuid[7]);
diff --git a/src/server/game/OutdoorPvP/OutdoorPvP.cpp b/src/server/game/OutdoorPvP/OutdoorPvP.cpp
index 92a83f9d6f0..c6235839476 100644
--- a/src/server/game/OutdoorPvP/OutdoorPvP.cpp
+++ b/src/server/game/OutdoorPvP/OutdoorPvP.cpp
@@ -49,7 +49,7 @@ class DefenseMessageBuilder
 };
 
 OPvPCapturePoint::OPvPCapturePoint(OutdoorPvP* pvp):
-    m_capturePointGUID(0), m_capturePoint(NULL), m_maxValue(0.0f), m_minValue(0.0f), m_maxSpeed(0),
+    m_capturePointGUID(), m_capturePoint(NULL), m_maxValue(0.0f), m_minValue(0.0f), m_maxSpeed(0),
     m_value(0), m_team(TEAM_NEUTRAL), m_OldState(OBJECTIVESTATE_NEUTRAL),
     m_State(OBJECTIVESTATE_NEUTRAL), m_neutralValuePct(0), m_PvP(pvp)
 { }
@@ -89,25 +89,27 @@ void OPvPCapturePoint::AddGO(uint32 type, uint32 guid, uint32 entry)
 {
     if (!entry)
     {
-        const GameObjectData* data = sObjectMgr->GetGOData(guid);
+        GameObjectData const* data = sObjectMgr->GetGOData(guid);
         if (!data)
             return;
         entry = data->id;
     }
-    m_Objects[type] = MAKE_NEW_GUID(guid, entry, HIGHGUID_GAMEOBJECT);
-    m_ObjectTypes[m_Objects[type]]=type;
+
+    m_Objects[type] = ObjectGuid(HIGHGUID_GAMEOBJECT, entry, guid);
+    m_ObjectTypes[m_Objects[type]] = type;
 }
 
 void OPvPCapturePoint::AddCre(uint32 type, uint32 guid, uint32 entry)
 {
     if (!entry)
     {
-        const CreatureData* data = sObjectMgr->GetCreatureData(guid);
+        CreatureData const* data = sObjectMgr->GetCreatureData(guid);
         if (!data)
             return;
         entry = data->id;
     }
-    m_Creatures[type] = MAKE_NEW_GUID(guid, entry, HIGHGUID_UNIT);
+
+    m_Creatures[type] = ObjectGuid(HIGHGUID_UNIT, entry, guid);
     m_CreatureTypes[m_Creatures[type]] = type;
 }
 
@@ -145,7 +147,7 @@ bool OPvPCapturePoint::SetCapturePointData(uint32 entry, uint32 map, float x, fl
         return false;
     }
 
-    m_capturePointGUID = sObjectMgr->AddGOData(entry, map, x, y, z, o, 0, rotation0, rotation1, rotation2, rotation3);
+    m_capturePointGUID = ObjectGuid(HIGHGUID_GAMEOBJECT, entry, sObjectMgr->AddGOData(entry, map, x, y, z, o, 0, rotation0, rotation1, rotation2, rotation3));
     if (!m_capturePointGUID)
         return false;
 
@@ -170,7 +172,7 @@ bool OPvPCapturePoint::DelCreature(uint32 type)
     if (!cr)
     {
         // can happen when closing the core
-        m_Creatures[type] = 0;
+        m_Creatures[type].Clear();
         return false;
     }
     TC_LOG_DEBUG("outdoorpvp", "deleting opvp creature type %u", type);
@@ -193,7 +195,7 @@ bool OPvPCapturePoint::DelCreature(uint32 type)
     cr->AddObjectToRemoveList();
     sObjectMgr->DeleteCreatureData(guid);
     m_CreatureTypes[m_Creatures[type]] = 0;
-    m_Creatures[type] = 0;
+    m_Creatures[type].Clear();
     return true;
 }
 
@@ -205,7 +207,7 @@ bool OPvPCapturePoint::DelObject(uint32 type)
     GameObject* obj = HashMapHolder<GameObject>::Find(m_Objects[type]);
     if (!obj)
     {
-        m_Objects[type] = 0;
+        m_Objects[type].Clear();
         return false;
     }
     uint32 guid = obj->GetDBTableGUIDLow();
@@ -213,14 +215,14 @@ bool OPvPCapturePoint::DelObject(uint32 type)
     obj->Delete();
     sObjectMgr->DeleteGOData(guid);
     m_ObjectTypes[m_Objects[type]] = 0;
-    m_Objects[type] = 0;
+    m_Objects[type].Clear();
     return true;
 }
 
 bool OPvPCapturePoint::DelCapturePoint()
 {
-    sObjectMgr->DeleteGOData(m_capturePointGUID);
-    m_capturePointGUID = 0;
+    sObjectMgr->DeleteGOData(m_capturePointGUID.GetCounter());
+    m_capturePointGUID.Clear();
 
     if (m_capturePoint)
     {
@@ -233,9 +235,9 @@ bool OPvPCapturePoint::DelCapturePoint()
 
 void OPvPCapturePoint::DeleteSpawns()
 {
-    for (std::map<uint32, uint64>::iterator i = m_Objects.begin(); i != m_Objects.end(); ++i)
+    for (std::map<uint32, ObjectGuid>::iterator i = m_Objects.begin(); i != m_Objects.end(); ++i)
         DelObject(i->first);
-    for (std::map<uint32, uint64>::iterator i = m_Creatures.begin(); i != m_Creatures.end(); ++i)
+    for (std::map<uint32, ObjectGuid>::iterator i = m_Creatures.begin(); i != m_Creatures.end(); ++i)
         DelCreature(i->first);
     DelCapturePoint();
 }
@@ -296,9 +298,9 @@ bool OPvPCapturePoint::Update(uint32 diff)
 
     for (uint32 team = 0; team < 2; ++team)
     {
-        for (PlayerSet::iterator itr = m_activePlayers[team].begin(); itr != m_activePlayers[team].end();)
+        for (GuidSet::iterator itr = m_activePlayers[team].begin(); itr != m_activePlayers[team].end();)
         {
-            uint64 playerGuid = *itr;
+            ObjectGuid playerGuid = *itr;
             ++itr;
 
             if (Player* player = ObjectAccessor::FindPlayer(playerGuid))
@@ -413,7 +415,7 @@ void OutdoorPvP::SendUpdateWorldState(uint32 field, uint32 value)
 {
     if (m_sendUpdate)
         for (int i = 0; i < 2; ++i)
-            for (PlayerSet::iterator itr = m_players[i].begin(); itr != m_players[i].end(); ++itr)
+            for (GuidSet::iterator itr = m_players[i].begin(); itr != m_players[i].end(); ++itr)
                 if (Player* const player = ObjectAccessor::FindPlayer(*itr))
                     player->SendUpdateWorldState(field, value);
 }
@@ -423,13 +425,13 @@ void OPvPCapturePoint::SendUpdateWorldState(uint32 field, uint32 value)
     for (uint32 team = 0; team < 2; ++team)
     {
         // send to all players present in the area
-        for (PlayerSet::iterator itr = m_activePlayers[team].begin(); itr != m_activePlayers[team].end(); ++itr)
+        for (GuidSet::iterator itr = m_activePlayers[team].begin(); itr != m_activePlayers[team].end(); ++itr)
             if (Player* const player = ObjectAccessor::FindPlayer(*itr))
                 player->SendUpdateWorldState(field, value);
     }
 }
 
-void OPvPCapturePoint::SendObjectiveComplete(uint32 id, uint64 guid)
+void OPvPCapturePoint::SendObjectiveComplete(uint32 id, ObjectGuid guid)
 {
     uint32 team;
     switch (m_State)
@@ -445,7 +447,7 @@ void OPvPCapturePoint::SendObjectiveComplete(uint32 id, uint64 guid)
     }
 
     // send to all players present in the area
-    for (PlayerSet::iterator itr = m_activePlayers[team].begin(); itr != m_activePlayers[team].end(); ++itr)
+    for (GuidSet::iterator itr = m_activePlayers[team].begin(); itr != m_activePlayers[team].end(); ++itr)
         if (Player* const player = ObjectAccessor::FindPlayer(*itr))
             player->KilledMonsterCredit(id, guid);
 }
@@ -490,7 +492,7 @@ bool OutdoorPvP::IsInsideObjective(Player* player) const
 
 bool OPvPCapturePoint::IsInsideObjective(Player* player) const
 {
-    PlayerSet const &plSet = m_activePlayers[player->GetTeamId()];
+    GuidSet const &plSet = m_activePlayers[player->GetTeamId()];
     return plSet.find(player->GetGUID()) != plSet.end();
 }
 
@@ -510,7 +512,7 @@ bool OPvPCapturePoint::HandleCustomSpell(Player* player, uint32 /*spellId*/, Gam
     return false;
 }
 
-bool OutdoorPvP::HandleOpenGo(Player* player, uint64 guid)
+bool OutdoorPvP::HandleOpenGo(Player* player, ObjectGuid guid)
 {
     for (OPvPCapturePointMap::iterator itr = m_capturePoints.begin(); itr != m_capturePoints.end(); ++itr)
         if (itr->second->HandleOpenGo(player, guid) >= 0)
@@ -519,7 +521,7 @@ bool OutdoorPvP::HandleOpenGo(Player* player, uint64 guid)
     return false;
 }
 
-bool OutdoorPvP::HandleGossipOption(Player* player, uint64 guid, uint32 id)
+bool OutdoorPvP::HandleGossipOption(Player* player, ObjectGuid guid, uint32 id)
 {
     for (OPvPCapturePointMap::iterator itr = m_capturePoints.begin(); itr != m_capturePoints.end(); ++itr)
         if (itr->second->HandleGossipOption(player, guid, id))
@@ -546,7 +548,7 @@ bool OutdoorPvP::HandleDropFlag(Player* player, uint32 id)
     return false;
 }
 
-bool OPvPCapturePoint::HandleGossipOption(Player* /*player*/, uint64 /*guid*/, uint32 /*id*/)
+bool OPvPCapturePoint::HandleGossipOption(Player* /*player*/, ObjectGuid /*guid*/, uint32 /*id*/)
 {
     return false;
 }
@@ -561,9 +563,9 @@ bool OPvPCapturePoint::HandleDropFlag(Player* /*player*/, uint32 /*id*/)
     return false;
 }
 
-int32 OPvPCapturePoint::HandleOpenGo(Player* /*player*/, uint64 guid)
+int32 OPvPCapturePoint::HandleOpenGo(Player* /*player*/, ObjectGuid guid)
 {
-    std::map<uint64, uint32>::iterator itr = m_ObjectTypes.find(guid);
+    std::map<ObjectGuid, uint32>::iterator itr = m_ObjectTypes.find(guid);
     if (itr != m_ObjectTypes.end())
     {
         return itr->second;
@@ -580,7 +582,7 @@ void OutdoorPvP::BroadcastPacket(WorldPacket &data) const
 {
     // This is faster than sWorld->SendZoneMessage
     for (uint32 team = 0; team < 2; ++team)
-        for (PlayerSet::const_iterator itr = m_players[team].begin(); itr != m_players[team].end(); ++itr)
+        for (GuidSet::const_iterator itr = m_players[team].begin(); itr != m_players[team].end(); ++itr)
             if (Player* const player = ObjectAccessor::FindPlayer(*itr))
                 player->GetSession()->SendPacket(&data);
 }
@@ -592,7 +594,7 @@ void OutdoorPvP::RegisterZone(uint32 zoneId)
 
 bool OutdoorPvP::HasPlayer(Player const* player) const
 {
-    PlayerSet const &plSet = m_players[player->GetTeamId()];
+    GuidSet const &plSet = m_players[player->GetTeamId()];
     return plSet.find(player->GetGUID()) != plSet.end();
 }
 
@@ -600,13 +602,13 @@ void OutdoorPvP::TeamCastSpell(TeamId team, int32 spellId)
 {
     if (spellId > 0)
     {
-        for (PlayerSet::iterator itr = m_players[team].begin(); itr != m_players[team].end(); ++itr)
+        for (GuidSet::iterator itr = m_players[team].begin(); itr != m_players[team].end(); ++itr)
             if (Player* const player = ObjectAccessor::FindPlayer(*itr))
                 player->CastSpell(player, (uint32)spellId, true);
     }
     else
     {
-        for (PlayerSet::iterator itr = m_players[team].begin(); itr != m_players[team].end(); ++itr)
+        for (GuidSet::iterator itr = m_players[team].begin(); itr != m_players[team].end(); ++itr)
             if (Player* const player = ObjectAccessor::FindPlayer(*itr))
                 player->RemoveAura((uint32)-spellId); // by stack?
     }
@@ -623,7 +625,7 @@ void OutdoorPvP::OnGameObjectCreate(GameObject* go)
     if (go->GetGoType() != GAMEOBJECT_TYPE_CAPTURE_POINT)
         return;
 
-    if (OPvPCapturePoint *cp = GetCapturePoint(go->GetDBTableGUIDLow()))
+    if (OPvPCapturePoint *cp = GetCapturePoint(go->GetGUID()))
         cp->m_capturePoint = go;
 }
 
@@ -632,7 +634,7 @@ void OutdoorPvP::OnGameObjectRemove(GameObject* go)
     if (go->GetGoType() != GAMEOBJECT_TYPE_CAPTURE_POINT)
         return;
 
-    if (OPvPCapturePoint *cp = GetCapturePoint(go->GetDBTableGUIDLow()))
+    if (OPvPCapturePoint *cp = GetCapturePoint(go->GetGUID()))
         cp->m_capturePoint = NULL;
 }
 
@@ -647,7 +649,7 @@ template<class Worker>
 void OutdoorPvP::BroadcastWorker(Worker& _worker, uint32 zoneId)
 {
     for (uint32 i = 0; i < BG_TEAMS_COUNT; ++i)
-        for (PlayerSet::iterator itr = m_players[i].begin(); itr != m_players[i].end(); ++itr)
+        for (GuidSet::iterator itr = m_players[i].begin(); itr != m_players[i].end(); ++itr)
             if (Player* player = ObjectAccessor::FindPlayer(*itr))
                 if (player->GetZoneId() == zoneId)
                     _worker(player);
diff --git a/src/server/game/OutdoorPvP/OutdoorPvP.h b/src/server/game/OutdoorPvP/OutdoorPvP.h
index b4e546164d0..c3161cc8cdd 100644
--- a/src/server/game/OutdoorPvP/OutdoorPvP.h
+++ b/src/server/game/OutdoorPvP/OutdoorPvP.h
@@ -83,8 +83,6 @@ class Unit;
 struct GossipMenuItems;
 class OutdoorPvP;
 
-typedef std::set<uint64> PlayerSet;
-
 class OPvPCapturePoint
 {
     public:
@@ -99,7 +97,7 @@ class OPvPCapturePoint
         void SendUpdateWorldState(uint32 field, uint32 value);
 
         // send kill notify to players in the controlling faction
-        void SendObjectiveComplete(uint32 id, uint64 guid);
+        void SendObjectiveComplete(uint32 id, ObjectGuid guid);
 
         // used when player is activated/inactivated in the area
         virtual bool HandlePlayerEnter(Player* player);
@@ -110,7 +108,7 @@ class OPvPCapturePoint
 
         virtual bool HandleCustomSpell(Player* player, uint32 spellId, GameObject* go);
 
-        virtual int32 HandleOpenGo(Player* player, uint64 guid);
+        virtual int32 HandleOpenGo(Player* player, ObjectGuid guid);
 
         // returns true if the state of the objective has changed, in this case, the OutdoorPvP must send a world state ui update.
         virtual bool Update(uint32 diff);
@@ -121,7 +119,7 @@ class OPvPCapturePoint
 
         virtual void SendChangePhase();
 
-        virtual bool HandleGossipOption(Player* player, uint64 guid, uint32 gossipid);
+        virtual bool HandleGossipOption(Player* player, ObjectGuid guid, uint32 gossipid);
 
         virtual bool CanTalkTo(Player* player, Creature* c, GossipMenuItems const& gso);
 
@@ -129,7 +127,7 @@ class OPvPCapturePoint
 
         virtual void DeleteSpawns();
 
-        uint32 m_capturePointGUID;
+        ObjectGuid m_capturePointGUID;
 
         GameObject* m_capturePoint;
 
@@ -153,7 +151,7 @@ class OPvPCapturePoint
     protected:
 
         // active players in the area of the objective, 0 - alliance, 1 - horde
-        PlayerSet m_activePlayers[2];
+        GuidSet m_activePlayers[2];
 
         // total shift needed to capture the objective
         float m_maxValue;
@@ -179,10 +177,10 @@ class OPvPCapturePoint
 
         // map to store the various gameobjects and creatures spawned by the objective
         //        type, guid
-        std::map<uint32, uint64> m_Objects;
-        std::map<uint32, uint64> m_Creatures;
-        std::map<uint64, uint32> m_ObjectTypes;
-        std::map<uint64, uint32> m_CreatureTypes;
+        std::map<uint32, ObjectGuid> m_Objects;
+        std::map<uint32, ObjectGuid> m_Creatures;
+        std::map<ObjectGuid, uint32> m_ObjectTypes;
+        std::map<ObjectGuid, uint32> m_CreatureTypes;
 };
 
 // base class for specific outdoor pvp handlers
@@ -201,7 +199,7 @@ class OutdoorPvP : public ZoneScript
         // deletes all gos/creatures spawned by the pvp
         void DeleteSpawns();
 
-        typedef std::map<uint32/*lowguid*/, OPvPCapturePoint*> OPvPCapturePointMap;
+        typedef std::map<ObjectGuid/*guid*/, OPvPCapturePoint*> OPvPCapturePointMap;
 
         virtual void FillInitialWorldStates(WorldPacket & /*data*/) { }
 
@@ -212,7 +210,7 @@ class OutdoorPvP : public ZoneScript
         virtual bool HandleCustomSpell(Player* player, uint32 spellId, GameObject* go);
 
         // called on go use
-        virtual bool HandleOpenGo(Player* player, uint64 guid);
+        virtual bool HandleOpenGo(Player* player, ObjectGuid guid);
 
         // setup stuff
         virtual bool SetupOutdoorPvP() {return true;}
@@ -241,7 +239,7 @@ class OutdoorPvP : public ZoneScript
 
         virtual bool HandleDropFlag(Player* player, uint32 spellId);
 
-        virtual bool HandleGossipOption(Player* player, uint64 guid, uint32 gossipid);
+        virtual bool HandleGossipOption(Player* player, ObjectGuid guid, uint32 gossipid);
 
         virtual bool CanTalkTo(Player* player, Creature* c, GossipMenuItems const& gso);
 
@@ -267,7 +265,7 @@ class OutdoorPvP : public ZoneScript
         // the map of the objectives belonging to this outdoorpvp
         OPvPCapturePointMap m_capturePoints;
 
-        PlayerSet m_players[2];
+        GuidSet m_players[2];
 
         uint32 m_TypeId;
 
@@ -288,9 +286,9 @@ class OutdoorPvP : public ZoneScript
             m_capturePoints[cp->m_capturePointGUID] = cp;
         }
 
-        OPvPCapturePoint * GetCapturePoint(uint32 lowguid) const
+        OPvPCapturePoint * GetCapturePoint(ObjectGuid guid) const
         {
-            OutdoorPvP::OPvPCapturePointMap::const_iterator itr = m_capturePoints.find(lowguid);
+            OutdoorPvP::OPvPCapturePointMap::const_iterator itr = m_capturePoints.find(guid);
             if (itr != m_capturePoints.end())
                 return itr->second;
             return NULL;
diff --git a/src/server/game/OutdoorPvP/OutdoorPvPMgr.cpp b/src/server/game/OutdoorPvP/OutdoorPvPMgr.cpp
index 5306a3ca3c1..4f423457b90 100644
--- a/src/server/game/OutdoorPvP/OutdoorPvPMgr.cpp
+++ b/src/server/game/OutdoorPvP/OutdoorPvPMgr.cpp
@@ -181,7 +181,7 @@ ZoneScript* OutdoorPvPMgr::GetZoneScript(uint32 zoneId)
         return NULL;
 }
 
-bool OutdoorPvPMgr::HandleOpenGo(Player* player, uint64 guid)
+bool OutdoorPvPMgr::HandleOpenGo(Player* player, ObjectGuid guid)
 {
     for (OutdoorPvPSet::iterator itr = m_OutdoorPvPSet.begin(); itr != m_OutdoorPvPSet.end(); ++itr)
     {
@@ -191,7 +191,7 @@ bool OutdoorPvPMgr::HandleOpenGo(Player* player, uint64 guid)
     return false;
 }
 
-void OutdoorPvPMgr::HandleGossipOption(Player* player, uint64 guid, uint32 gossipid)
+void OutdoorPvPMgr::HandleGossipOption(Player* player, ObjectGuid guid, uint32 gossipid)
 {
     for (OutdoorPvPSet::iterator itr = m_OutdoorPvPSet.begin(); itr != m_OutdoorPvPSet.end(); ++itr)
     {
diff --git a/src/server/game/OutdoorPvP/OutdoorPvPMgr.h b/src/server/game/OutdoorPvP/OutdoorPvPMgr.h
index bf2f14a291f..bbcad8074e1 100644
--- a/src/server/game/OutdoorPvP/OutdoorPvPMgr.h
+++ b/src/server/game/OutdoorPvP/OutdoorPvPMgr.h
@@ -70,7 +70,7 @@ class OutdoorPvPMgr
         bool HandleCustomSpell(Player* player, uint32 spellId, GameObject* go);
 
         // handle custom go if registered
-        bool HandleOpenGo(Player* player, uint64 guid);
+        bool HandleOpenGo(Player* player, ObjectGuid guid);
 
         ZoneScript* GetZoneScript(uint32 zoneId);
 
@@ -78,7 +78,7 @@ class OutdoorPvPMgr
 
         void Update(uint32 diff);
 
-        void HandleGossipOption(Player* player, uint64 guid, uint32 gossipid);
+        void HandleGossipOption(Player* player, ObjectGuid guid, uint32 gossipid);
 
         bool CanTalkTo(Player* player, Creature* creature, GossipMenuItems const& gso);
 
diff --git a/src/server/game/Pools/PoolMgr.cpp b/src/server/game/Pools/PoolMgr.cpp
index b12b5f187ad..3ada9d9740b 100644
--- a/src/server/game/Pools/PoolMgr.cpp
+++ b/src/server/game/Pools/PoolMgr.cpp
@@ -221,7 +221,7 @@ void PoolGroup<Creature>::Despawn1Object(uint32 guid)
     {
         sObjectMgr->RemoveCreatureFromGrid(guid, data);
 
-        if (Creature* creature = ObjectAccessor::GetObjectInWorld(MAKE_NEW_GUID(guid, data->id, HIGHGUID_UNIT), (Creature*)NULL))
+        if (Creature* creature = ObjectAccessor::GetObjectInWorld(ObjectGuid(HIGHGUID_UNIT, data->id, guid), (Creature*)NULL))
             creature->AddObjectToRemoveList();
     }
 }
@@ -234,7 +234,7 @@ void PoolGroup<GameObject>::Despawn1Object(uint32 guid)
     {
         sObjectMgr->RemoveGameobjectFromGrid(guid, data);
 
-        if (GameObject* pGameobject = ObjectAccessor::GetObjectInWorld(MAKE_NEW_GUID(guid, data->id, HIGHGUID_GAMEOBJECT), (GameObject*)NULL))
+        if (GameObject* pGameobject = ObjectAccessor::GetObjectInWorld(ObjectGuid(HIGHGUID_GAMEOBJECT, data->id, guid), (GameObject*)NULL))
             pGameobject->AddObjectToRemoveList();
     }
 }
@@ -510,7 +510,7 @@ template <>
 void PoolGroup<Creature>::ReSpawn1Object(PoolObject* obj)
 {
     if (CreatureData const* data = sObjectMgr->GetCreatureData(obj->guid))
-        if (Creature* creature = ObjectAccessor::GetObjectInWorld(MAKE_NEW_GUID(obj->guid, data->id, HIGHGUID_UNIT), (Creature*)NULL))
+        if (Creature* creature = ObjectAccessor::GetObjectInWorld(ObjectGuid(HIGHGUID_UNIT, data->id, obj->guid), (Creature*)NULL))
             creature->GetMap()->AddToMap(creature);
 }
 
@@ -519,7 +519,7 @@ template <>
 void PoolGroup<GameObject>::ReSpawn1Object(PoolObject* obj)
 {
     if (GameObjectData const* data = sObjectMgr->GetGOData(obj->guid))
-        if (GameObject* pGameobject = ObjectAccessor::GetObjectInWorld(MAKE_NEW_GUID(obj->guid, data->id, HIGHGUID_GAMEOBJECT), (GameObject*)NULL))
+        if (GameObject* pGameobject = ObjectAccessor::GetObjectInWorld(ObjectGuid(HIGHGUID_GAMEOBJECT, data->id, obj->guid), (GameObject*)NULL))
             pGameobject->GetMap()->AddToMap(pGameobject);
 }
 
diff --git a/src/server/game/Scripting/MapScripts.cpp b/src/server/game/Scripting/MapScripts.cpp
index 888c1ec7e8d..8a49878aa50 100644
--- a/src/server/game/Scripting/MapScripts.cpp
+++ b/src/server/game/Scripting/MapScripts.cpp
@@ -40,9 +40,9 @@ void Map::ScriptsStart(ScriptMapMap const& scripts, uint32 id, Object* source, O
         return;
 
     // prepare static data
-    uint64 sourceGUID = source ? source->GetGUID() : uint64(0); //some script commands doesn't have source
-    uint64 targetGUID = target ? target->GetGUID() : uint64(0);
-    uint64 ownerGUID  = (source && source->GetTypeId() == TYPEID_ITEM) ? ((Item*)source)->GetOwnerGUID() : uint64(0);
+    ObjectGuid sourceGUID = source ? source->GetGUID() : ObjectGuid::Empty; //some script commands doesn't have source
+    ObjectGuid targetGUID = target ? target->GetGUID() : ObjectGuid::Empty;
+    ObjectGuid ownerGUID = (source && source->GetTypeId() == TYPEID_ITEM) ? ((Item*)source)->GetOwnerGUID() : ObjectGuid::Empty;
 
     ///- Schedule script execution for all scripts in the script map
     ScriptMap const* s2 = &(s->second);
@@ -75,9 +75,9 @@ void Map::ScriptCommandStart(ScriptInfo const& script, uint32 delay, Object* sou
     // NOTE: script record _must_ exist until command executed
 
     // prepare static data
-    uint64 sourceGUID = source ? source->GetGUID() : uint64(0);
-    uint64 targetGUID = target ? target->GetGUID() : uint64(0);
-    uint64 ownerGUID  = (source && source->GetTypeId() == TYPEID_ITEM) ? ((Item*)source)->GetOwnerGUID() : uint64(0);
+    ObjectGuid sourceGUID = source ? source->GetGUID() : ObjectGuid::Empty;
+    ObjectGuid targetGUID = target ? target->GetGUID() : ObjectGuid::Empty;
+    ObjectGuid ownerGUID = (source && source->GetTypeId() == TYPEID_ITEM) ? ((Item*)source)->GetOwnerGUID() : ObjectGuid::Empty;
 
     ScriptAction sa;
     sa.sourceGUID = sourceGUID;
@@ -299,7 +299,7 @@ void Map::ScriptsProcess()
         Object* source = NULL;
         if (step.sourceGUID)
         {
-            switch (GUID_HIPART(step.sourceGUID))
+            switch (step.sourceGUID.GetHigh())
             {
                 case HIGHGUID_ITEM: // as well as HIGHGUID_CONTAINER
                     if (Player* player = HashMapHolder<Player>::Find(step.ownerGUID))
@@ -329,8 +329,8 @@ void Map::ScriptsProcess()
                     break;
                 }
                 default:
-                    TC_LOG_ERROR("scripts", "%s source with unsupported high guid (GUID: " UI64FMTD ", high guid: %u).",
-                        step.script->GetDebugInfo().c_str(), step.sourceGUID, GUID_HIPART(step.sourceGUID));
+                    TC_LOG_ERROR("scripts", "%s source with unsupported high guid %s.",
+                        step.script->GetDebugInfo().c_str(), step.sourceGUID.ToString().c_str());
                     break;
             }
         }
@@ -338,7 +338,7 @@ void Map::ScriptsProcess()
         WorldObject* target = NULL;
         if (step.targetGUID)
         {
-            switch (GUID_HIPART(step.targetGUID))
+            switch (step.targetGUID.GetHigh())
             {
                 case HIGHGUID_UNIT:
                 case HIGHGUID_VEHICLE:
@@ -364,8 +364,8 @@ void Map::ScriptsProcess()
                     break;
                 }
                 default:
-                    TC_LOG_ERROR("scripts", "%s target with unsupported high guid (GUID: " UI64FMTD ", high guid: %u).",
-                        step.script->GetDebugInfo().c_str(), step.targetGUID, GUID_HIPART(step.targetGUID));
+                    TC_LOG_ERROR("scripts", "%s target with unsupported high guid %s.",
+                        step.script->GetDebugInfo().c_str(), step.targetGUID.ToString().c_str());
                     break;
             }
         }
@@ -374,12 +374,11 @@ void Map::ScriptsProcess()
         {
             case SCRIPT_COMMAND_TALK:
             {
-                if (step.script->Talk.ChatType > CHAT_TYPE_WHISPER && step.script->Talk.ChatType != CHAT_MSG_RAID_BOSS_WHISPER)
+                if (step.script->Talk.ChatType > CHAT_TYPE_BOSS_WHISPER)
                 {
                     TC_LOG_ERROR("scripts", "%s invalid chat type (%u) specified, skipping.", step.script->GetDebugInfo().c_str(), step.script->Talk.ChatType);
                     break;
                 }
-                Unit* source = nullptr;
 
                 if (step.script->Talk.Flags & SF_TALK_USE_PLAYER)
                     source = _GetScriptPlayerSourceOrTarget(source, target, step.script);
@@ -388,26 +387,33 @@ void Map::ScriptsProcess()
 
                 if (source)
                 {
+                    Unit* sourceUnit = source->ToUnit();
+                    if (!sourceUnit)
+                    {
+                        TC_LOG_ERROR("scripts", "%s source object (%s) is not an unit, skipping.", step.script->GetDebugInfo().c_str(), source->GetGUID().ToString().c_str());
+                        break;
+                    }
+
                     switch (step.script->Talk.ChatType)
                     {
                         case CHAT_TYPE_SAY:
-                            source->Say(step.script->Talk.TextID, target);
+                            sourceUnit->Say(step.script->Talk.TextID, target);
                             break;
                         case CHAT_TYPE_YELL:
-                            source->Yell(step.script->Talk.TextID, target);
+                            sourceUnit->Yell(step.script->Talk.TextID, target);
                             break;
                         case CHAT_TYPE_TEXT_EMOTE:
                         case CHAT_TYPE_BOSS_EMOTE:
-                            source->TextEmote(step.script->Talk.TextID, target, step.script->Talk.ChatType == CHAT_TYPE_BOSS_EMOTE);
+                            sourceUnit->TextEmote(step.script->Talk.TextID, target, step.script->Talk.ChatType == CHAT_TYPE_BOSS_EMOTE);
                             break;
                         case CHAT_TYPE_WHISPER:
-                        case CHAT_MSG_RAID_BOSS_WHISPER:
+                        case CHAT_TYPE_BOSS_WHISPER:
                         {
                             Player* receiver = target ? target->ToPlayer() : nullptr;
                             if (!receiver)
                                 TC_LOG_ERROR("scripts", "%s attempt to whisper to non-player unit, skipping.", step.script->GetDebugInfo().c_str());
                             else
-                                source->Whisper(step.script->Talk.TextID, receiver, step.script->Talk.ChatType == CHAT_MSG_RAID_BOSS_WHISPER);
+                                sourceUnit->Whisper(step.script->Talk.TextID, receiver, step.script->Talk.ChatType == CHAT_TYPE_BOSS_WHISPER);
                             break;
                         }
                         default:
@@ -434,9 +440,9 @@ void Map::ScriptsProcess()
                 {
                     // Validate field number.
                     if (step.script->FieldSet.FieldID <= OBJECT_FIELD_ENTRY || step.script->FieldSet.FieldID >= cSource->GetValuesCount())
-                        TC_LOG_ERROR("scripts", "%s wrong field %u (max count: %u) in object (TypeId: %u, Entry: %u, GUID: %u) specified, skipping.",
+                        TC_LOG_ERROR("scripts", "%s wrong field %u (max count: %u) in object (TypeId: %u, %s) specified, skipping.",
                             step.script->GetDebugInfo().c_str(), step.script->FieldSet.FieldID,
-                            cSource->GetValuesCount(), cSource->GetTypeId(), cSource->GetEntry(), cSource->GetGUIDLow());
+                            cSource->GetValuesCount(), cSource->GetTypeId(), cSource->GetGUID().ToString().c_str());
                     else
                         cSource->SetUInt32Value(step.script->FieldSet.FieldID, step.script->FieldSet.FieldValue);
                 }
@@ -565,7 +571,7 @@ void Map::ScriptsProcess()
                     if (step.script->KillCredit.Flags & SF_KILLCREDIT_REWARD_GROUP)
                         player->RewardPlayerAndGroupAtEvent(step.script->KillCredit.CreatureEntry, player);
                     else
-                        player->KilledMonsterCredit(step.script->KillCredit.CreatureEntry, 0);
+                        player->KilledMonsterCredit(step.script->KillCredit.CreatureEntry);
                 }
                 break;
 
@@ -805,7 +811,7 @@ void Map::ScriptsProcess()
                 else //check hashmap holders
                 {
                     if (CreatureData const* data = sObjectMgr->GetCreatureData(step.script->CallScript.CreatureEntry))
-                        cTarget = ObjectAccessor::GetObjectInWorld<Creature>(data->mapid, data->posX, data->posY, MAKE_NEW_GUID(step.script->CallScript.CreatureEntry, data->id, HIGHGUID_UNIT), cTarget);
+                        cTarget = ObjectAccessor::GetObjectInWorld<Creature>(data->mapid, data->posX, data->posY, ObjectGuid(HIGHGUID_UNIT, data->id, step.script->CallScript.CreatureEntry), cTarget);
                 }
 
                 if (!cTarget)
diff --git a/src/server/game/Scripting/ScriptMgr.cpp b/src/server/game/Scripting/ScriptMgr.cpp
index be75f42492a..448911aa82d 100644
--- a/src/server/game/Scripting/ScriptMgr.cpp
+++ b/src/server/game/Scripting/ScriptMgr.cpp
@@ -1240,7 +1240,7 @@ void ScriptMgr::OnPlayerEmote(Player* player, uint32 emote)
     FOREACH_SCRIPT(PlayerScript)->OnEmote(player, emote);
 }
 
-void ScriptMgr::OnPlayerTextEmote(Player* player, uint32 textEmote, uint32 emoteNum, uint64 guid)
+void ScriptMgr::OnPlayerTextEmote(Player* player, uint32 textEmote, uint32 emoteNum, ObjectGuid guid)
 {
     FOREACH_SCRIPT(PlayerScript)->OnTextEmote(player, textEmote, emoteNum, guid);
 }
@@ -1265,12 +1265,12 @@ void ScriptMgr::OnPlayerCreate(Player* player)
     FOREACH_SCRIPT(PlayerScript)->OnCreate(player);
 }
 
-void ScriptMgr::OnPlayerDelete(uint64 guid, uint32 accountId)
+void ScriptMgr::OnPlayerDelete(ObjectGuid guid, uint32 accountId)
 {
     FOREACH_SCRIPT(PlayerScript)->OnDelete(guid, accountId);
 }
 
-void ScriptMgr::OnPlayerFailedDelete(uint64 guid, uint32 accountId)
+void ScriptMgr::OnPlayerFailedDelete(ObjectGuid guid, uint32 accountId)
 {
     FOREACH_SCRIPT(PlayerScript)->OnFailedDelete(guid, accountId);
 }
@@ -1384,25 +1384,25 @@ void ScriptMgr::OnGuildBankEvent(Guild* guild, uint8 eventType, uint8 tabId, uin
 }
 
 // Group
-void ScriptMgr::OnGroupAddMember(Group* group, uint64 guid)
+void ScriptMgr::OnGroupAddMember(Group* group, ObjectGuid guid)
 {
     ASSERT(group);
     FOREACH_SCRIPT(GroupScript)->OnAddMember(group, guid);
 }
 
-void ScriptMgr::OnGroupInviteMember(Group* group, uint64 guid)
+void ScriptMgr::OnGroupInviteMember(Group* group, ObjectGuid guid)
 {
     ASSERT(group);
     FOREACH_SCRIPT(GroupScript)->OnInviteMember(group, guid);
 }
 
-void ScriptMgr::OnGroupRemoveMember(Group* group, uint64 guid, RemoveMethod method, uint64 kicker, const char* reason)
+void ScriptMgr::OnGroupRemoveMember(Group* group, ObjectGuid guid, RemoveMethod method, ObjectGuid kicker, const char* reason)
 {
     ASSERT(group);
     FOREACH_SCRIPT(GroupScript)->OnRemoveMember(group, guid, method, kicker, reason);
 }
 
-void ScriptMgr::OnGroupChangeLeader(Group* group, uint64 newLeaderGuid, uint64 oldLeaderGuid)
+void ScriptMgr::OnGroupChangeLeader(Group* group, ObjectGuid newLeaderGuid, ObjectGuid oldLeaderGuid)
 {
     ASSERT(group);
     FOREACH_SCRIPT(GroupScript)->OnChangeLeader(group, newLeaderGuid, oldLeaderGuid);
diff --git a/src/server/game/Scripting/ScriptMgr.h b/src/server/game/Scripting/ScriptMgr.h
index 14155b536a3..5d63844d946 100644
--- a/src/server/game/Scripting/ScriptMgr.h
+++ b/src/server/game/Scripting/ScriptMgr.h
@@ -737,7 +737,7 @@ class PlayerScript : public UnitScript
         // Both of the below are called on emote opcodes.
         virtual void OnEmote(Player* /*player*/, uint32 /*emote*/) { }
 
-        virtual void OnTextEmote(Player* /*player*/, uint32 /*textEmote*/, uint32 /*emoteNum*/, uint64 /*guid*/) { }
+        virtual void OnTextEmote(Player* /*player*/, uint32 /*textEmote*/, uint32 /*emoteNum*/, ObjectGuid /*guid*/) { }
 
         // Called in Spell::Cast.
         virtual void OnSpellCast(Player* /*player*/, Spell* /*spell*/, bool /*skipCheck*/) { }
@@ -752,10 +752,10 @@ class PlayerScript : public UnitScript
         virtual void OnCreate(Player* /*player*/) { }
 
         // Called when a player is deleted.
-        virtual void OnDelete(uint64 /*guid*/, uint32 /*accountId*/) { }
+        virtual void OnDelete(ObjectGuid /*guid*/, uint32 /*accountId*/) { }
 
         // Called when a player delete failed
-        virtual void OnFailedDelete(uint64 /*guid*/, uint32 /*accountId*/) { }
+        virtual void OnFailedDelete(ObjectGuid /*guid*/, uint32 /*accountId*/) { }
 
         // Called when a player is about to be saved.
         virtual void OnSave(Player* /*player*/) { }
@@ -854,16 +854,16 @@ class GroupScript : public ScriptObject
         bool IsDatabaseBound() const final override { return false; }
 
         // Called when a member is added to a group.
-        virtual void OnAddMember(Group* /*group*/, uint64 /*guid*/) { }
+        virtual void OnAddMember(Group* /*group*/, ObjectGuid /*guid*/) { }
 
         // Called when a member is invited to join a group.
-        virtual void OnInviteMember(Group* /*group*/, uint64 /*guid*/) { }
+        virtual void OnInviteMember(Group* /*group*/, ObjectGuid /*guid*/) { }
 
         // Called when a member is removed from a group.
-        virtual void OnRemoveMember(Group* /*group*/, uint64 /*guid*/, RemoveMethod /*method*/, uint64 /*kicker*/, const char* /*reason*/) { }
+        virtual void OnRemoveMember(Group* /*group*/, ObjectGuid /*guid*/, RemoveMethod /*method*/, ObjectGuid /*kicker*/, const char* /*reason*/) { }
 
         // Called when the leader of a group is changed.
-        virtual void OnChangeLeader(Group* /*group*/, uint64 /*newLeaderGuid*/, uint64 /*oldLeaderGuid*/) { }
+        virtual void OnChangeLeader(Group* /*group*/, ObjectGuid /*newLeaderGuid*/, ObjectGuid /*oldLeaderGuid*/) { }
 
         // Called when a group is disbanded.
         virtual void OnDisband(Group* /*group*/) { }
@@ -1067,13 +1067,13 @@ class ScriptMgr
         void OnPlayerChat(Player* player, uint32 type, uint32 lang, std::string& msg, Guild* guild);
         void OnPlayerChat(Player* player, uint32 type, uint32 lang, std::string& msg, Channel* channel);
         void OnPlayerEmote(Player* player, uint32 emote);
-        void OnPlayerTextEmote(Player* player, uint32 textEmote, uint32 emoteNum, uint64 guid);
+        void OnPlayerTextEmote(Player* player, uint32 textEmote, uint32 emoteNum, ObjectGuid guid);
         void OnPlayerSpellCast(Player* player, Spell* spell, bool skipCheck);
         void OnPlayerLogin(Player* player, bool firstLogin);
         void OnPlayerLogout(Player* player);
         void OnPlayerCreate(Player* player);
-        void OnPlayerDelete(uint64 guid, uint32 accountId);
-        void OnPlayerFailedDelete(uint64 guid, uint32 accountId);
+        void OnPlayerDelete(ObjectGuid guid, uint32 accountId);
+        void OnPlayerFailedDelete(ObjectGuid guid, uint32 accountId);
         void OnPlayerSave(Player* player);
         void OnPlayerBindToInstance(Player* player, Difficulty difficulty, uint32 mapid, bool permanent);
         void OnPlayerUpdateZone(Player* player, uint32 newZone, uint32 newArea);
@@ -1105,10 +1105,10 @@ class ScriptMgr
 
     public: /* GroupScript */
 
-        void OnGroupAddMember(Group* group, uint64 guid);
-        void OnGroupInviteMember(Group* group, uint64 guid);
-        void OnGroupRemoveMember(Group* group, uint64 guid, RemoveMethod method, uint64 kicker, const char* reason);
-        void OnGroupChangeLeader(Group* group, uint64 newLeaderGuid, uint64 oldLeaderGuid);
+        void OnGroupAddMember(Group* group, ObjectGuid guid);
+        void OnGroupInviteMember(Group* group, ObjectGuid guid);
+        void OnGroupRemoveMember(Group* group, ObjectGuid guid, RemoveMethod method, ObjectGuid kicker, const char* reason);
+        void OnGroupChangeLeader(Group* group, ObjectGuid newLeaderGuid, ObjectGuid oldLeaderGuid);
         void OnGroupDisband(Group* group);
 
     public: /* UnitScript */
diff --git a/src/server/game/Server/Protocol/PacketLog.cpp b/src/server/game/Server/Protocol/PacketLog.cpp
index 8bd5bbf5a90..8ee3fade39f 100644
--- a/src/server/game/Server/Protocol/PacketLog.cpp
+++ b/src/server/game/Server/Protocol/PacketLog.cpp
@@ -98,7 +98,7 @@ void PacketLog::Initialize()
     }
 }
 
-void PacketLog::LogPacket(WorldPacket const& packet, Direction direction, boost::asio::ip::address addr, uint16 port)
+void PacketLog::LogPacket(WorldPacket const& packet, Direction direction, boost::asio::ip::address const& addr, uint16 port)
 {
     std::lock_guard<std::mutex> lock(_logPacketLock);
 
diff --git a/src/server/game/Server/Protocol/PacketLog.h b/src/server/game/Server/Protocol/PacketLog.h
index 36e8c675f63..06674b88b9e 100644
--- a/src/server/game/Server/Protocol/PacketLog.h
+++ b/src/server/game/Server/Protocol/PacketLog.h
@@ -48,7 +48,7 @@ class PacketLog
 
         void Initialize();
         bool CanLogPacket() const { return (_file != NULL); }
-        void LogPacket(WorldPacket const& packet, Direction direction, boost::asio::ip::address addr, uint16 port);
+        void LogPacket(WorldPacket const& packet, Direction direction, boost::asio::ip::address const& addr, uint16 port);
 
     private:
         FILE* _file;
diff --git a/src/server/game/Server/WorldSession.cpp b/src/server/game/Server/WorldSession.cpp
index 6d0ea9ea7a4..428e0582867 100644
--- a/src/server/game/Server/WorldSession.cpp
+++ b/src/server/game/Server/WorldSession.cpp
@@ -128,7 +128,7 @@ WorldSession::WorldSession(uint32 id, uint32 battlenetAccountId, std::shared_ptr
     _RBACData(NULL),
     expireTime(60000), // 1 min after socket loss, session is deleted
     forceExit(false),
-    m_currentBankerGUID(0)
+    m_currentBankerGUID()
 {
     memset(m_Tutorials, 0, sizeof(m_Tutorials));
 
@@ -192,9 +192,11 @@ std::string WorldSession::GetPlayerInfo() const
 {
     std::ostringstream ss;
 
-    ss << "[Player: " << GetPlayerName()
-       << " (Guid: " << (_player != NULL ? _player->GetGUID() : 0)
-       << ", Account: " << GetAccountId() << ")]";
+    ss << "[Player: " << GetPlayerName() << " (";
+    if (_player != NULL)
+        ss << _player->GetGUID().ToString() << ", ";
+
+    ss << "Account: " << GetAccountId() << ")]";
 
     return ss.str();
 }
@@ -476,7 +478,7 @@ void WorldSession::LogoutPlayer(bool save)
 
     if (_player)
     {
-        if (uint64 lguid = _player->GetLootGUID())
+        if (ObjectGuid lguid = _player->GetLootGUID())
             DoLootRelease(lguid);
 
         ///- If the player just died before logging out, make him appear as a ghost
@@ -543,7 +545,7 @@ void WorldSession::LogoutPlayer(bool save)
             for (int j = BUYBACK_SLOT_START; j < BUYBACK_SLOT_END; ++j)
             {
                 eslot = j - BUYBACK_SLOT_START;
-                _player->SetUInt64Value(PLAYER_FIELD_VENDORBUYBACK_SLOT_1 + (eslot * 2), 0);
+                _player->SetGuidValue(PLAYER_FIELD_VENDORBUYBACK_SLOT_1 + (eslot * 2), ObjectGuid::Empty);
                 _player->SetUInt32Value(PLAYER_FIELD_BUYBACK_PRICE_1 + eslot, 0);
                 _player->SetUInt32Value(PLAYER_FIELD_BUYBACK_TIMESTAMP_1 + eslot, 0);
             }
@@ -656,7 +658,7 @@ void WorldSession::SendNotification(uint32 string_id, ...)
     }
 }
 
-const char *WorldSession::GetTrinityString(int32 entry) const
+char const* WorldSession::GetTrinityString(uint32 entry) const
 {
     return sObjectMgr->GetTrinityString(entry, GetSessionDbLocaleIndex());
 }
@@ -1089,7 +1091,7 @@ void WorldSession::ProcessQueryCallbacks()
     //- SendStabledPet
     if (_sendStabledPetCallback.IsReady())
     {
-        uint64 param = _sendStabledPetCallback.GetParam();
+        ObjectGuid param = _sendStabledPetCallback.GetParam();
         _sendStabledPetCallback.GetResult(result);
         SendStablePetCallback(result, param);
         _sendStabledPetCallback.FreeResult();
diff --git a/src/server/game/Server/WorldSession.h b/src/server/game/Server/WorldSession.h
index 7f4c487b607..4ec407f5254 100644
--- a/src/server/game/Server/WorldSession.h
+++ b/src/server/game/Server/WorldSession.h
@@ -287,38 +287,37 @@ class WorldSession
         /// Handle the authentication waiting queue (to be completed)
         void SendAuthWaitQue(uint32 position);
 
-        //void SendTestCreatureQueryOpcode(uint32 entry, uint64 guid, uint32 testvalue);
-        void SendNameQueryOpcode(uint64 guid);
-
-        bool CanOpenMailBox(uint64 guid);
-
-        void SendTrainerList(uint64 guid);
-        void SendTrainerList(uint64 guid, std::string const& strTitle);
-        void SendListInventory(uint64 guid);
-        void SendShowBank(uint64 guid);
-        void SendTabardVendorActivate(uint64 guid);
+        void SendNameQueryOpcode(ObjectGuid guid);
+
+        void SendTrainerList(ObjectGuid guid);
+        void SendTrainerList(ObjectGuid guid, std::string const& strTitle);
+        void SendListInventory(ObjectGuid guid);
+        void SendShowBank(ObjectGuid guid);
+        bool CanOpenMailBox(ObjectGuid guid);
+        void SendShowMailBox(ObjectGuid guid);
+        void SendTabardVendorActivate(ObjectGuid guid);
         void SendSpiritResurrect();
         void SendBindPoint(Creature* npc);
 
         void SendAttackStop(Unit const* enemy);
 
-        void SendBattleGroundList(uint64 guid, BattlegroundTypeId bgTypeId = BATTLEGROUND_RB);
+        void SendBattleGroundList(ObjectGuid guid, BattlegroundTypeId bgTypeId = BATTLEGROUND_RB);
 
         void SendTradeStatus(TradeStatusInfo const& status);
         void SendUpdateTrade(bool trader_data = true);
         void SendCancelTrade();
 
-        void SendPetitionQueryOpcode(uint64 petitionguid);
+        void SendPetitionQueryOpcode(ObjectGuid petitionguid);
 
         // Spell
-        void HandleClientCastFlags(WorldPacket& recvPacket, uint8 castFlags, SpellCastTargets & targets);
+        void HandleClientCastFlags(WorldPacket& recvPacket, uint8 castFlags, SpellCastTargets& targets);
 
         // Pet
-        void SendPetNameQuery(uint64 guid, uint32 petnumber);
-        void SendStablePet(uint64 guid);
-        void SendStablePetCallback(PreparedQueryResult result, uint64 guid);
+        void SendPetNameQuery(ObjectGuid guid, uint32 petnumber);
+        void SendStablePet(ObjectGuid guid);
+        void SendStablePetCallback(PreparedQueryResult result, ObjectGuid guid);
         void SendStableResult(uint8 guid);
-        bool CheckStableMaster(uint64 guid);
+        bool CheckStableMaster(ObjectGuid guid);
 
         // Account Data
         AccountData* GetAccountData(AccountDataType type) { return &m_accountData[type]; }
@@ -342,18 +341,18 @@ class WorldSession
         //used with item_page table
         bool SendItemInfo(uint32 itemid, WorldPacket data);
         //auction
-        void SendAuctionHello(uint64 guid, Creature* unit);
+        void SendAuctionHello(ObjectGuid guid, Creature* unit);
         void SendAuctionCommandResult(AuctionEntry* auction, uint32 Action, uint32 ErrorCode, uint32 bidError = 0);
-        void SendAuctionBidderNotification(uint32 location, uint32 auctionId, uint64 bidder, uint32 bidSum, uint32 diff, uint32 item_template);
+        void SendAuctionBidderNotification(uint32 location, uint32 auctionId, ObjectGuid bidder, uint32 bidSum, uint32 diff, uint32 item_template);
         void SendAuctionOwnerNotification(AuctionEntry* auction);
         void SendAuctionRemovedNotification(uint32 auctionId, uint32 itemEntry, int32 randomPropertyId);
 
         //Item Enchantment
-        void SendEnchantmentLog(uint64 target, uint64 caster, uint32 itemId, uint32 enchantId);
-        void SendItemEnchantTimeUpdate(uint64 Playerguid, uint64 Itemguid, uint32 slot, uint32 Duration);
+        void SendEnchantmentLog(ObjectGuid target, ObjectGuid caster, uint32 itemId, uint32 enchantId);
+        void SendItemEnchantTimeUpdate(ObjectGuid Playerguid, ObjectGuid Itemguid, uint32 slot, uint32 Duration);
 
         //Taxi
-        void SendTaxiStatus(uint64 guid);
+        void SendTaxiStatus(ObjectGuid guid);
         void SendTaxiMenu(Creature* unit);
         void SendDoFlight(uint32 mountDisplayId, uint32 path, uint32 pathNode = 0);
         bool SendLearnNewTaxiNode(Creature* unit);
@@ -362,11 +361,11 @@ class WorldSession
         // Guild/Arena Team
         void SendArenaTeamCommandResult(uint32 team_action, std::string const& team, std::string const& player, uint32 error_id = 0);
         void SendNotInArenaTeamPacket(uint8 type);
-        void SendPetitionShowList(uint64 guid);
+        void SendPetitionShowList(ObjectGuid guid);
 
         void BuildPartyMemberStatsChangedPacket(Player* player, WorldPacket* data);
 
-        void DoLootRelease(uint64 lguid);
+        void DoLootRelease(ObjectGuid lguid);
 
         // Account mute time
         time_t m_muteTime;
@@ -374,7 +373,7 @@ class WorldSession
         // Locales
         LocaleConstant GetSessionDbcLocale() const { return m_sessionDbcLocale; }
         LocaleConstant GetSessionDbLocaleIndex() const { return m_sessionDbLocaleIndex; }
-        const char *GetTrinityString(int32 entry) const;
+        char const* GetTrinityString(uint32 entry) const;
 
         uint32 GetLatency() const { return m_latency; }
         void SetLatency(uint32 latency) { m_latency = latency; }
@@ -673,7 +672,6 @@ class WorldSession
         void HandleMailCreateTextItem(WorldPacket& recvData);
         void HandleQueryNextMailTime(WorldPacket& recvData);
         void HandleCancelChanneling(WorldPacket& recvData);
-        void SendShowMailBox(uint64 guid);
 
         void SendItemPageInfo(ItemTemplate* itemProto);
         void HandleSplitItemOpcode(WorldPacket& recvPacket);
@@ -778,7 +776,7 @@ class WorldSession
         //Pet
         void HandlePetAction(WorldPacket& recvData);
         void HandlePetStopAttack(WorldPacket& recvData);
-        void HandlePetActionHelper(Unit* pet, uint64 guid1, uint32 spellid, uint16 flag, uint64 guid2, float x, float y, float z);
+        void HandlePetActionHelper(Unit* pet, ObjectGuid guid1, uint32 spellid, uint16 flag, ObjectGuid guid2, float x, float y, float z);
         void HandlePetNameQuery(WorldPacket& recvData);
         void HandlePetSetAction(WorldPacket& recvData);
         void HandlePetAbandon(WorldPacket& recvData);
@@ -814,11 +812,11 @@ class WorldSession
         void HandleRequestRatedBgStats(WorldPacket& recvData);
 
         // Battlefield
-        void SendBfInvitePlayerToWar(uint64 guid, uint32 zoneId, uint32 time);
-        void SendBfInvitePlayerToQueue(uint64 guid);
-        void SendBfQueueInviteResponse(uint64 guid, uint32 zoneId, bool canQueue = true, bool full = false);
-        void SendBfEntered(uint64 guid);
-        void SendBfLeaveMessage(uint64 guid, BFLeaveReason reason = BF_LEAVE_REASON_EXITED);
+        void SendBfInvitePlayerToWar(ObjectGuid guid, uint32 zoneId, uint32 time);
+        void SendBfInvitePlayerToQueue(ObjectGuid guid);
+        void SendBfQueueInviteResponse(ObjectGuid guid, uint32 zoneId, bool canQueue = true, bool full = false);
+        void SendBfEntered(ObjectGuid guid);
+        void SendBfLeaveMessage(ObjectGuid guid, BFLeaveReason reason = BF_LEAVE_REASON_EXITED);
         void HandleBfQueueInviteResponse(WorldPacket& recvData);
         void HandleBfEntryInviteResponse(WorldPacket& recvData);
         void HandleBfExitRequest(WorldPacket& recvData);
@@ -855,7 +853,7 @@ class WorldSession
         void HandleLfgGetStatus(WorldPacket& recvData);
 
         void SendLfgUpdateStatus(lfg::LfgUpdateData const& updateData, bool party);
-        void SendLfgRoleChosen(uint64 guid, uint8 roles);
+        void SendLfgRoleChosen(ObjectGuid guid, uint8 roles);
         void SendLfgRoleCheckUpdate(lfg::LfgRoleCheck const& pRoleCheck);
         void SendLfgLfrList(bool update);
         void SendLfgJoinResult(lfg::LfgJoinResultData const& joinData);
@@ -997,7 +995,7 @@ class WorldSession
         QueryCallback<PreparedQueryResult, std::string> _addFriendCallback;
         QueryCallback<PreparedQueryResult, uint32> _unstablePetCallback;
         QueryCallback<PreparedQueryResult, uint32> _stableSwapCallback;
-        QueryCallback<PreparedQueryResult, uint64> _sendStabledPetCallback;
+        QueryCallback<PreparedQueryResult, ObjectGuid> _sendStabledPetCallback;
         QueryCallback<PreparedQueryResult, CharacterCreateInfo*, true> _charCreateCallback;
         QueryResultHolderFuture _charLoginCallback;
 
@@ -1035,21 +1033,21 @@ class WorldSession
         // private trade methods
         void moveItems(Item* myItems[], Item* hisItems[]);
 
-        bool CanUseBank(uint64 bankerGUID = 0) const;
+        bool CanUseBank(ObjectGuid bankerGUID = ObjectGuid::Empty) const;
 
         // logging helper
         void LogUnexpectedOpcode(WorldPacket* packet, const char* status, const char *reason);
         void LogUnprocessedTail(WorldPacket* packet);
 
         // EnumData helpers
-        bool IsLegitCharacterForAccount(uint32 lowGUID)
+        bool IsLegitCharacterForAccount(ObjectGuid lowGUID)
         {
             return _legitCharacters.find(lowGUID) != _legitCharacters.end();
         }
 
         // this stores the GUIDs of the characters who can login
         // characters who failed on Player::BuildEnumData shouldn't login
-        std::set<uint32> _legitCharacters;
+        GuidSet _legitCharacters;
 
         uint32 m_GUIDLow;                                   // set logined or recently logout player (while m_playerRecentlyLogout set)
         Player* _player;
@@ -1090,7 +1088,7 @@ class WorldSession
         rbac::RBACData* _RBACData;
         uint32 expireTime;
         bool forceExit;
-        uint64 m_currentBankerGUID;
+        ObjectGuid m_currentBankerGUID;
 
         WorldSession(WorldSession const& right) = delete;
         WorldSession& operator=(WorldSession const& right) = delete;
diff --git a/src/server/game/Server/WorldSocket.cpp b/src/server/game/Server/WorldSocket.cpp
index 83bf2c2fff8..f37354f7e65 100644
--- a/src/server/game/Server/WorldSocket.cpp
+++ b/src/server/game/Server/WorldSocket.cpp
@@ -260,7 +260,7 @@ void WorldSocket::SendPacket(WorldPacket& packet)
 
     _authCrypt.EncryptSend(header.header, header.getHeaderLength());
 
-#ifndef BOOST_ASIO_HAS_IOCP
+#ifndef TC_SOCKET_USE_IOCP
     if (_writeQueue.empty() && _writeBuffer.GetRemainingSpace() >= header.getHeaderLength() + packet.size())
     {
         _writeBuffer.Write(header.header, header.getHeaderLength());
@@ -281,7 +281,7 @@ void WorldSocket::SendPacket(WorldPacket& packet)
 
 void WorldSocket::HandleAuthSession(WorldPacket& recvPacket)
 {
-    uint8 digest[20];
+    uint8 digest[SHA_DIGEST_LENGTH];
     uint32 clientSeed;
     uint8 security;
     uint16 clientBuild;
@@ -421,7 +421,7 @@ void WorldSocket::HandleAuthSession(WorldPacket& recvPacket)
     sha.UpdateBigNumbers(&k, NULL);
     sha.Finalize();
 
-    if (memcmp(sha.GetDigest(), digest, 20))
+    if (memcmp(sha.GetDigest(), digest, SHA_DIGEST_LENGTH) != 0)
     {
         SendAuthResponseError(AUTH_FAILED);
         TC_LOG_ERROR("network", "WorldSocket::HandleAuthSession: Authentication failed for account: %u ('%s') address: %s", id, account.c_str(), address.c_str());
@@ -432,7 +432,7 @@ void WorldSocket::HandleAuthSession(WorldPacket& recvPacket)
     ///- Re-check ip locking (same check as in auth).
     if (fields[3].GetUInt8() == 1) // if ip is locked
     {
-        if (strcmp(fields[2].GetCString(), address.c_str()))
+        if (strcmp(fields[2].GetCString(), address.c_str()) != 0)
         {
             SendAuthResponseError(AUTH_FAILED);
             TC_LOG_DEBUG("network", "WorldSocket::HandleAuthSession: Sent Auth Response (Account IP differs. Original IP: %s, new IP: %s).", fields[2].GetCString(), address.c_str());
diff --git a/src/server/game/Spells/Auras/SpellAuraEffects.cpp b/src/server/game/Spells/Auras/SpellAuraEffects.cpp
index e43363e9cf6..83441b73c8e 100644
--- a/src/server/game/Spells/Auras/SpellAuraEffects.cpp
+++ b/src/server/game/Spells/Auras/SpellAuraEffects.cpp
@@ -483,7 +483,7 @@ int32 AuraEffect::CalculateAmount(Unit* caster)
 
     // check item enchant aura cast
     if (!amount && caster)
-        if (uint64 itemGUID = GetBase()->GetCastItemGUID())
+        if (ObjectGuid itemGUID = GetBase()->GetCastItemGUID())
             if (Player* playerCaster = caster->ToPlayer())
                 if (Item* castItem = playerCaster->GetItemByGuid(itemGUID))
                     if (castItem->GetItemSuffixFactor())
@@ -799,7 +799,7 @@ void AuraEffect::ApplySpellMod(Unit* target, bool apply)
         case SPELLMOD_EFFECT2:
         case SPELLMOD_EFFECT3:
         {
-            uint64 guid = target->GetGUID();
+            ObjectGuid guid = target->GetGUID();
             Unit::AuraApplicationMap & auras = target->GetAppliedAuras();
             for (Unit::AuraApplicationMap::iterator iter = auras.begin(); iter != auras.end(); ++iter)
             {
@@ -1752,7 +1752,7 @@ void AuraEffect::HandleAuraModShapeshift(AuraApplication const* aurApp, uint8 mo
         }
 
         // remove other shapeshift before applying a new one
-        target->RemoveAurasByType(SPELL_AURA_MOD_SHAPESHIFT, 0, GetBase());
+        target->RemoveAurasByType(SPELL_AURA_MOD_SHAPESHIFT, ObjectGuid::Empty, GetBase());
 
         // stop handling the effect if it was removed by linked event
         if (aurApp->GetRemoveMode())
@@ -2090,7 +2090,7 @@ void AuraEffect::HandleAuraTransform(AuraApplication const* aurApp, uint8 mode,
         {
             // for players, start regeneration after 1s (in polymorph fast regeneration case)
             // only if caster is Player (after patch 2.4.2)
-            if (IS_PLAYER_GUID(GetCasterGUID()))
+            if (GetCasterGUID().IsPlayer())
                 target->ToPlayer()->setRegenTimerCount(1*IN_MILLISECONDS);
 
             //dismount polymorphed target (after patch 2.4.2)
@@ -3406,7 +3406,7 @@ void AuraEffect::HandleAuraModStateImmunity(AuraApplication const* aurApp, uint8
     target->ApplySpellImmune(GetId(), IMMUNITY_STATE, GetMiscValue(), apply);
 
     if (apply && GetSpellInfo()->AttributesEx & SPELL_ATTR1_DISPEL_AURAS_ON_IMMUNITY)
-        target->RemoveAurasByType(AuraType(GetMiscValue()), 0, GetBase());
+        target->RemoveAurasByType(AuraType(GetMiscValue()), ObjectGuid::Empty, GetBase());
 }
 
 void AuraEffect::HandleAuraModSchoolImmunity(AuraApplication const* aurApp, uint8 mode, bool apply) const
@@ -5193,13 +5193,13 @@ void AuraEffect::HandleAuraLinked(AuraApplication const* aurApp, uint8 mode, boo
         }
         else
         {
-            uint64 casterGUID = triggeredSpellInfo->NeedsToBeTriggeredByCaster(m_spellInfo) ? GetCasterGUID() : target->GetGUID();
+            ObjectGuid casterGUID = triggeredSpellInfo->NeedsToBeTriggeredByCaster(m_spellInfo) ? GetCasterGUID() : target->GetGUID();
             target->RemoveAura(triggeredSpellId, casterGUID, 0, aurApp->GetRemoveMode());
         }
     }
     else if (mode & AURA_EFFECT_HANDLE_REAPPLY && apply)
     {
-        uint64 casterGUID = triggeredSpellInfo->NeedsToBeTriggeredByCaster(m_spellInfo) ? GetCasterGUID() : target->GetGUID();
+        ObjectGuid casterGUID = triggeredSpellInfo->NeedsToBeTriggeredByCaster(m_spellInfo) ? GetCasterGUID() : target->GetGUID();
         // change the stack amount to be equal to stack amount of our aura
         if (Aura* triggeredAura = target->GetAura(triggeredSpellId, casterGUID))
             triggeredAura->ModStackAmount(GetBase()->GetStackAmount() - triggeredAura->GetStackAmount());
@@ -5317,7 +5317,7 @@ void AuraEffect::HandleAuraSetVehicle(AuraApplication const* aurApp, uint8 mode,
         return;
 
     WorldPacket data(SMSG_PLAYER_VEHICLE_DATA, target->GetPackGUID().size()+4);
-    data.appendPackGUID(target->GetGUID());
+    data << target->GetPackGUID();
     data << uint32(apply ? vehicleId : 0);
     target->SendMessageToSet(&data, true);
 
@@ -5637,7 +5637,7 @@ void AuraEffect::HandlePeriodicTriggerSpellAuraTick(Unit* target, Unit* caster)
                     case 28820:
                     {
                         // Need remove self if Lightning Shield not active
-                        if (!target->GetAuraEffect(SPELL_AURA_PROC_TRIGGER_SPELL, SPELLFAMILY_SHAMAN, 0x400))
+                        if (!target->GetAuraEffect(SPELL_AURA_PROC_TRIGGER_SPELL, SPELLFAMILY_SHAMAN, 0x400, 0, 0))
                             target->RemoveAurasDueToSpell(28820);
                         return;
                     }
@@ -5911,8 +5911,8 @@ void AuraEffect::HandlePeriodicDamageAurasTick(Unit* target, Unit* caster) const
 
     caster->CalcAbsorbResist(target, GetSpellInfo()->GetSchoolMask(), DOT, damage, &absorb, &resist, GetSpellInfo());
 
-    TC_LOG_INFO("spells", "PeriodicTick: %u (TypeId: %u) attacked %u (TypeId: %u) for %u dmg inflicted by %u abs is %u",
-        GUID_LOPART(GetCasterGUID()), GuidHigh2TypeId(GUID_HIPART(GetCasterGUID())), target->GetGUIDLow(), target->GetTypeId(), damage, GetId(), absorb);
+    TC_LOG_INFO("spells", "PeriodicTick: %s attacked %s for %u dmg inflicted by %u absorb is %u",
+        GetCasterGUID().ToString().c_str(), target->GetGUID().ToString().c_str(), damage, GetId(), absorb);
 
     caster->DealDamageMods(target, damage, &absorb);
 
@@ -6001,8 +6001,8 @@ void AuraEffect::HandlePeriodicHealthLeechAuraTick(Unit* target, Unit* caster) c
     if (target->GetHealth() < damage)
         damage = uint32(target->GetHealth());
 
-    TC_LOG_INFO("spells", "PeriodicTick: %u (TypeId: %u) health leech of %u (TypeId: %u) for %u dmg inflicted by %u abs is %u",
-        GUID_LOPART(GetCasterGUID()), GuidHigh2TypeId(GUID_HIPART(GetCasterGUID())), target->GetGUIDLow(), target->GetTypeId(), damage, GetId(), absorb);
+    TC_LOG_INFO("spells", "PeriodicTick: %s health leech of %s for %u dmg inflicted by %u abs is %u",
+        GetCasterGUID().ToString().c_str(), target->GetGUID().ToString().c_str(), damage, GetId(), absorb);
 
     caster->SendSpellNonMeleeDamageLog(target, GetId(), damage, GetSpellInfo()->GetSchoolMask(), absorb, resist, false, 0, crit);
 
@@ -6129,8 +6129,8 @@ void AuraEffect::HandlePeriodicHealAurasTick(Unit* target, Unit* caster) const
     if (crit)
         damage = caster->SpellCriticalHealingBonus(m_spellInfo, damage, target);
 
-    TC_LOG_INFO("spells", "PeriodicTick: %u (TypeId: %u) heal of %u (TypeId: %u) for %u health inflicted by %u",
-        GUID_LOPART(GetCasterGUID()), GuidHigh2TypeId(GUID_HIPART(GetCasterGUID())), target->GetGUIDLow(), target->GetTypeId(), damage, GetId());
+    TC_LOG_INFO("spells", "PeriodicTick: %s heal of %s for %u health inflicted by %u",
+        GetCasterGUID().ToString().c_str(), target->GetGUID().ToString().c_str(), damage, GetId());
 
     uint32 absorb = 0;
     uint32 heal = uint32(damage);
@@ -6142,7 +6142,7 @@ void AuraEffect::HandlePeriodicHealAurasTick(Unit* target, Unit* caster) const
 
     target->getHostileRefManager().threatAssist(caster, float(gain) * 0.5f, GetSpellInfo());
 
-    bool haveCastItem = GetBase()->GetCastItemGUID() != 0;
+    bool haveCastItem = !GetBase()->GetCastItemGUID().IsEmpty();
 
     // Health Funnel
     // damage caster for heal amount
@@ -6200,8 +6200,8 @@ void AuraEffect::HandlePeriodicManaLeechAuraTick(Unit* target, Unit* caster) con
             drainAmount = maxmana;
     }
 
-    TC_LOG_INFO("spells", "PeriodicTick: %u (TypeId: %u) power leech of %u (TypeId: %u) for %u dmg inflicted by %u",
-        GUID_LOPART(GetCasterGUID()), GuidHigh2TypeId(GUID_HIPART(GetCasterGUID())), target->GetGUIDLow(), target->GetTypeId(), drainAmount, GetId());
+    TC_LOG_INFO("spells", "PeriodicTick: %s power leech of %s for %u dmg inflicted by %u",
+        GetCasterGUID().ToString().c_str(), target->GetGUID().ToString().c_str(), drainAmount, GetId());
 
     int32 drainedAmount = -target->ModifyPower(powerType, -drainAmount);
 
@@ -6257,8 +6257,8 @@ void AuraEffect::HandleObsModPowerAuraTick(Unit* target, Unit* caster) const
 
     // ignore negative values (can be result apply spellmods to aura damage
     uint32 amount = std::max(m_amount, 0) * target->GetMaxPower(powerType) /100;
-    TC_LOG_INFO("spells", "PeriodicTick: %u (TypeId: %u) energize %u (TypeId: %u) for %u dmg inflicted by %u",
-        GUID_LOPART(GetCasterGUID()), GuidHigh2TypeId(GUID_HIPART(GetCasterGUID())), target->GetGUIDLow(), target->GetTypeId(), amount, GetId());
+    TC_LOG_INFO("spells", "PeriodicTick: %s energize %s for %u dmg inflicted by %u",
+        GetCasterGUID().ToString().c_str(), target->GetGUID().ToString().c_str(), amount, GetId());
 
     SpellPeriodicAuraLogInfo pInfo(this, amount, 0, 0, 0, 0.0f, false);
     target->SendPeriodicAuraLog(&pInfo);
@@ -6295,8 +6295,8 @@ void AuraEffect::HandlePeriodicEnergizeAuraTick(Unit* target, Unit* caster) cons
     SpellPeriodicAuraLogInfo pInfo(this, amount, 0, 0, 0, 0.0f, false);
     target->SendPeriodicAuraLog(&pInfo);
 
-    TC_LOG_INFO("spells", "PeriodicTick: %u (TypeId: %u) energize %u (TypeId: %u) for %u dmg inflicted by %u",
-        GUID_LOPART(GetCasterGUID()), GuidHigh2TypeId(GUID_HIPART(GetCasterGUID())), target->GetGUIDLow(), target->GetTypeId(), amount, GetId());
+    TC_LOG_INFO("spells", "PeriodicTick: %s energize %s for %u dmg inflicted by %u",
+        GetCasterGUID().ToString().c_str(), target->GetGUID().ToString().c_str(), amount, GetId());
 
     int32 gain = target->ModifyPower(powerType, amount);
 
diff --git a/src/server/game/Spells/Auras/SpellAuraEffects.h b/src/server/game/Spells/Auras/SpellAuraEffects.h
index 700bbb10417..d07885aaa83 100644
--- a/src/server/game/Spells/Auras/SpellAuraEffects.h
+++ b/src/server/game/Spells/Auras/SpellAuraEffects.h
@@ -30,14 +30,14 @@ typedef void(AuraEffect::*pAuraEffectHandler)(AuraApplication const* aurApp, uin
 class AuraEffect
 {
     friend void Aura::_InitEffects(uint8 effMask, Unit* caster, int32 *baseAmount);
-    friend Aura* Unit::_TryStackingOrRefreshingExistingAura(SpellInfo const* newAura, uint8 effMask, Unit* caster, int32* baseAmount, Item* castItem, uint64 casterGUID);
+    friend Aura* Unit::_TryStackingOrRefreshingExistingAura(SpellInfo const* newAura, uint8 effMask, Unit* caster, int32* baseAmount, Item* castItem, ObjectGuid casterGUID);
     friend Aura::~Aura();
     private:
         ~AuraEffect();
         explicit AuraEffect(Aura* base, uint8 effIndex, int32 *baseAmount, Unit* caster);
     public:
         Unit* GetCaster() const { return GetBase()->GetCaster(); }
-        uint64 GetCasterGUID() const { return GetBase()->GetCasterGUID(); }
+        ObjectGuid GetCasterGUID() const { return GetBase()->GetCasterGUID(); }
         Aura* GetBase() const { return m_base; }
         void GetTargetList(std::list<Unit*> & targetList) const;
         void GetApplicationList(std::list<AuraApplication*> & applicationList) const;
diff --git a/src/server/game/Spells/Auras/SpellAuras.cpp b/src/server/game/Spells/Auras/SpellAuras.cpp
index dadca633401..afe0e477b20 100644
--- a/src/server/game/Spells/Auras/SpellAuras.cpp
+++ b/src/server/game/Spells/Auras/SpellAuras.cpp
@@ -203,7 +203,7 @@ void AuraApplication::BuildUpdatePacket(ByteBuffer& data, bool remove) const
     data << uint8(aura->GetSpellInfo()->StackAmount ? aura->GetStackAmount() : aura->GetCharges());
 
     if (!(flags & AFLAG_CASTER))
-        data.appendPackGUID(aura->GetCasterGUID());
+        data << aura->GetCasterGUID().WriteAsPacked();
 
     if (flags & AFLAG_DURATION)
     {
@@ -223,7 +223,7 @@ void AuraApplication::ClientUpdate(bool remove)
     _needClientUpdate = false;
 
     WorldPacket data(SMSG_AURA_UPDATE);
-    data.append(GetTarget()->GetPackGUID());
+    data << GetTarget()->GetPackGUID();
     BuildUpdatePacket(data, remove);
 
     _target->SendMessageToSet(&data, true);
@@ -257,7 +257,7 @@ uint8 Aura::BuildEffectMaskForOwner(SpellInfo const* spellProto, uint8 avalibleE
     return effMask & avalibleEffectMask;
 }
 
-Aura* Aura::TryRefreshStackOrCreate(SpellInfo const* spellproto, uint8 tryEffMask, WorldObject* owner, Unit* caster, int32* baseAmount /*= NULL*/, Item* castItem /*= NULL*/, uint64 casterGUID /*= 0*/, bool* refresh /*= NULL*/)
+Aura* Aura::TryRefreshStackOrCreate(SpellInfo const* spellproto, uint8 tryEffMask, WorldObject* owner, Unit* caster, int32* baseAmount /*= NULL*/, Item* castItem /*= NULL*/, ObjectGuid casterGUID /*= ObjectGuid::Empty*/, bool* refresh /*= NULL*/)
 {
     ASSERT(spellproto);
     ASSERT(owner);
@@ -283,7 +283,7 @@ Aura* Aura::TryRefreshStackOrCreate(SpellInfo const* spellproto, uint8 tryEffMas
         return Create(spellproto, effMask, owner, caster, baseAmount, castItem, casterGUID);
 }
 
-Aura* Aura::TryCreate(SpellInfo const* spellproto, uint8 tryEffMask, WorldObject* owner, Unit* caster, int32* baseAmount /*= NULL*/, Item* castItem /*= NULL*/, uint64 casterGUID /*= 0*/)
+Aura* Aura::TryCreate(SpellInfo const* spellproto, uint8 tryEffMask, WorldObject* owner, Unit* caster, int32* baseAmount /*= NULL*/, Item* castItem /*= NULL*/, ObjectGuid casterGUID /*= ObjectGuid::Empty*/)
 {
     ASSERT(spellproto);
     ASSERT(owner);
@@ -295,7 +295,7 @@ Aura* Aura::TryCreate(SpellInfo const* spellproto, uint8 tryEffMask, WorldObject
     return Create(spellproto, effMask, owner, caster, baseAmount, castItem, casterGUID);
 }
 
-Aura* Aura::Create(SpellInfo const* spellproto, uint8 effMask, WorldObject* owner, Unit* caster, int32* baseAmount, Item* castItem, uint64 casterGUID)
+Aura* Aura::Create(SpellInfo const* spellproto, uint8 effMask, WorldObject* owner, Unit* caster, int32* baseAmount, Item* castItem, ObjectGuid casterGUID)
 {
     ASSERT(effMask);
     ASSERT(spellproto);
@@ -340,9 +340,9 @@ Aura* Aura::Create(SpellInfo const* spellproto, uint8 effMask, WorldObject* owne
     return aura;
 }
 
-Aura::Aura(SpellInfo const* spellproto, WorldObject* owner, Unit* caster, Item* castItem, uint64 casterGUID) :
+Aura::Aura(SpellInfo const* spellproto, WorldObject* owner, Unit* caster, Item* castItem, ObjectGuid casterGUID) :
 m_spellInfo(spellproto), m_casterGuid(casterGUID ? casterGUID : caster->GetGUID()),
-m_castItemGuid(castItem ? castItem->GetGUID() : 0), m_applyTime(time(NULL)),
+m_castItemGuid(castItem ? castItem->GetGUID() : ObjectGuid::Empty), m_applyTime(time(NULL)),
 m_owner(owner), m_timeCla(0), m_updateTargetMapInterval(0),
 m_casterLevel(caster ? caster->getLevel() : m_spellInfo->SpellLevel), m_procCharges(0), m_stackAmount(1),
 m_isRemoved(false), m_isSingleTarget(false), m_isUsingCharges(false), m_dropEvent(nullptr)
@@ -2246,7 +2246,7 @@ void Aura::CallScriptAfterEffectProcHandlers(AuraEffect const* aurEff, AuraAppli
     }
 }
 
-UnitAura::UnitAura(SpellInfo const* spellproto, uint8 effMask, WorldObject* owner, Unit* caster, int32 *baseAmount, Item* castItem, uint64 casterGUID)
+UnitAura::UnitAura(SpellInfo const* spellproto, uint8 effMask, WorldObject* owner, Unit* caster, int32 *baseAmount, Item* castItem, ObjectGuid casterGUID)
     : Aura(spellproto, owner, caster, castItem, casterGUID)
 {
     m_AuraDRGroup = DIMINISHING_NONE;
@@ -2349,7 +2349,7 @@ void UnitAura::FillTargetMap(std::map<Unit*, uint8> & targets, Unit* caster)
     }
 }
 
-DynObjAura::DynObjAura(SpellInfo const* spellproto, uint8 effMask, WorldObject* owner, Unit* caster, int32 *baseAmount, Item* castItem, uint64 casterGUID)
+DynObjAura::DynObjAura(SpellInfo const* spellproto, uint8 effMask, WorldObject* owner, Unit* caster, int32 *baseAmount, Item* castItem, ObjectGuid casterGUID)
     : Aura(spellproto, owner, caster, castItem, casterGUID)
 {
     LoadScripts();
diff --git a/src/server/game/Spells/Auras/SpellAuras.h b/src/server/game/Spells/Auras/SpellAuras.h
index 1266bf5c6ec..f69d9baafe0 100644
--- a/src/server/game/Spells/Auras/SpellAuras.h
+++ b/src/server/game/Spells/Auras/SpellAuras.h
@@ -84,23 +84,23 @@ class AuraApplication
 
 class Aura
 {
-    friend Aura* Unit::_TryStackingOrRefreshingExistingAura(SpellInfo const* newAura, uint8 effMask, Unit* caster, int32 *baseAmount, Item* castItem, uint64 casterGUID);
+    friend Aura* Unit::_TryStackingOrRefreshingExistingAura(SpellInfo const* newAura, uint8 effMask, Unit* caster, int32 *baseAmount, Item* castItem, ObjectGuid casterGUID);
     public:
-        typedef std::map<uint64, AuraApplication *> ApplicationMap;
+        typedef std::map<ObjectGuid, AuraApplication*> ApplicationMap;
 
         static uint8 BuildEffectMaskForOwner(SpellInfo const* spellProto, uint8 avalibleEffectMask, WorldObject* owner);
-        static Aura* TryRefreshStackOrCreate(SpellInfo const* spellproto, uint8 tryEffMask, WorldObject* owner, Unit* caster, int32* baseAmount = NULL, Item* castItem = NULL, uint64 casterGUID = 0, bool* refresh = NULL);
-        static Aura* TryCreate(SpellInfo const* spellproto, uint8 effMask, WorldObject* owner, Unit* caster, int32 *baseAmount = NULL, Item* castItem = NULL, uint64 casterGUID = 0);
-        static Aura* Create(SpellInfo const* spellproto, uint8 effMask, WorldObject* owner, Unit* caster, int32* baseAmount, Item* castItem, uint64 casterGUID);
-        explicit Aura(SpellInfo const* spellproto, WorldObject* owner, Unit* caster, Item* castItem, uint64 casterGUID);
+        static Aura* TryRefreshStackOrCreate(SpellInfo const* spellproto, uint8 tryEffMask, WorldObject* owner, Unit* caster, int32* baseAmount = NULL, Item* castItem = NULL, ObjectGuid casterGUID = ObjectGuid::Empty, bool* refresh = NULL);
+        static Aura* TryCreate(SpellInfo const* spellproto, uint8 effMask, WorldObject* owner, Unit* caster, int32 *baseAmount = NULL, Item* castItem = NULL, ObjectGuid casterGUID = ObjectGuid::Empty);
+        static Aura* Create(SpellInfo const* spellproto, uint8 effMask, WorldObject* owner, Unit* caster, int32* baseAmount, Item* castItem, ObjectGuid casterGUID);
+        explicit Aura(SpellInfo const* spellproto, WorldObject* owner, Unit* caster, Item* castItem, ObjectGuid casterGUID);
         void _InitEffects(uint8 effMask, Unit* caster, int32 *baseAmount);
         virtual ~Aura();
 
         SpellInfo const* GetSpellInfo() const { return m_spellInfo; }
         uint32 GetId() const{ return GetSpellInfo()->Id; }
 
-        uint64 GetCastItemGUID() const { return m_castItemGuid; }
-        uint64 GetCasterGUID() const { return m_casterGuid; }
+        ObjectGuid GetCastItemGUID() const { return m_castItemGuid; }
+        ObjectGuid GetCasterGUID() const { return m_casterGuid; }
         Unit* GetCaster() const;
         WorldObject* GetOwner() const { return m_owner; }
         Unit* GetUnitOwner() const { ASSERT(GetType() == UNIT_AURA_TYPE); return (Unit*)m_owner; }
@@ -186,11 +186,11 @@ class Aura
         void HandleAllEffects(AuraApplication * aurApp, uint8 mode, bool apply);
 
         // Helpers for targets
-        ApplicationMap const & GetApplicationMap() {return m_applications;}
+        ApplicationMap const& GetApplicationMap() { return m_applications; }
         void GetApplicationList(Unit::AuraApplicationList& applicationList) const;
-        const AuraApplication * GetApplicationOfTarget (uint64 guid) const { ApplicationMap::const_iterator itr = m_applications.find(guid); if (itr != m_applications.end()) return itr->second; return NULL; }
-        AuraApplication * GetApplicationOfTarget (uint64 guid) { ApplicationMap::iterator itr = m_applications.find(guid); if (itr != m_applications.end()) return itr->second; return NULL; }
-        bool IsAppliedOnTarget(uint64 guid) const { return m_applications.find(guid) != m_applications.end(); }
+        const AuraApplication* GetApplicationOfTarget(ObjectGuid guid) const { ApplicationMap::const_iterator itr = m_applications.find(guid); if (itr != m_applications.end()) return itr->second; return NULL; }
+        AuraApplication* GetApplicationOfTarget(ObjectGuid guid) { ApplicationMap::iterator itr = m_applications.find(guid); if (itr != m_applications.end()) return itr->second; return NULL; }
+        bool IsAppliedOnTarget(ObjectGuid guid) const { return m_applications.find(guid) != m_applications.end(); }
 
         void SetNeedClientUpdateForTargets() const;
         void HandleAuraSpecificMods(AuraApplication const* aurApp, Unit* caster, bool apply, bool onReapply);
@@ -246,10 +246,10 @@ class Aura
         void _DeleteRemovedApplications();
     protected:
         SpellInfo const* const m_spellInfo;
-        uint64 const m_casterGuid;
-        uint64 const m_castItemGuid;                        // it is NOT safe to keep a pointer to the item because it may get deleted
+        ObjectGuid const m_casterGuid;
+        ObjectGuid const m_castItemGuid;                    // it is NOT safe to keep a pointer to the item because it may get deleted
         time_t const m_applyTime;
-        WorldObject* const m_owner;                        //
+        WorldObject* const m_owner;
 
         int32 m_maxDuration;                                // Max aura duration
         int32 m_duration;                                   // Current time
@@ -275,9 +275,9 @@ class Aura
 
 class UnitAura : public Aura
 {
-    friend Aura* Aura::Create(SpellInfo const* spellproto, uint8 effMask, WorldObject* owner, Unit* caster, int32 *baseAmount, Item* castItem, uint64 casterGUID);
+    friend Aura* Aura::Create(SpellInfo const* spellproto, uint8 effMask, WorldObject* owner, Unit* caster, int32 *baseAmount, Item* castItem, ObjectGuid casterGUID);
     protected:
-        explicit UnitAura(SpellInfo const* spellproto, uint8 effMask, WorldObject* owner, Unit* caster, int32 *baseAmount, Item* castItem, uint64 casterGUID);
+        explicit UnitAura(SpellInfo const* spellproto, uint8 effMask, WorldObject* owner, Unit* caster, int32 *baseAmount, Item* castItem, ObjectGuid casterGUID);
     public:
         void _ApplyForTarget(Unit* target, Unit* caster, AuraApplication * aurApp) override;
         void _UnapplyForTarget(Unit* target, Unit* caster, AuraApplication * aurApp) override;
@@ -296,9 +296,9 @@ class UnitAura : public Aura
 
 class DynObjAura : public Aura
 {
-    friend Aura* Aura::Create(SpellInfo const* spellproto, uint8 effMask, WorldObject* owner, Unit* caster, int32 *baseAmount, Item* castItem, uint64 casterGUID);
+    friend Aura* Aura::Create(SpellInfo const* spellproto, uint8 effMask, WorldObject* owner, Unit* caster, int32 *baseAmount, Item* castItem, ObjectGuid casterGUID);
     protected:
-        explicit DynObjAura(SpellInfo const* spellproto, uint8 effMask, WorldObject* owner, Unit* caster, int32 *baseAmount, Item* castItem, uint64 casterGUID);
+        explicit DynObjAura(SpellInfo const* spellproto, uint8 effMask, WorldObject* owner, Unit* caster, int32 *baseAmount, Item* castItem, ObjectGuid casterGUID);
     public:
         void Remove(AuraRemoveMode removeMode = AURA_REMOVE_BY_DEFAULT) override;
 
diff --git a/src/server/game/Spells/Spell.cpp b/src/server/game/Spells/Spell.cpp
index 9ff644a7616..05cf35465ef 100644
--- a/src/server/game/Spells/Spell.cpp
+++ b/src/server/game/Spells/Spell.cpp
@@ -63,14 +63,14 @@ extern pEffect SpellEffects[TOTAL_SPELL_EFFECTS];
 SpellDestination::SpellDestination()
 {
     _position.Relocate(0, 0, 0, 0);
-    _transportGUID = 0;
+    _transportGUID.Clear();
     _transportOffset.Relocate(0, 0, 0, 0);
 }
 
 SpellDestination::SpellDestination(float x, float y, float z, float orientation, uint32 mapId)
 {
     _position.Relocate(x, y, z, orientation);
-    _transportGUID = 0;
+    _transportGUID.Clear();
     _position.m_mapId = mapId;
     _transportOffset.Relocate(0, 0, 0, 0);
 }
@@ -78,7 +78,7 @@ SpellDestination::SpellDestination(float x, float y, float z, float orientation,
 SpellDestination::SpellDestination(Position const& pos)
 {
     _position.Relocate(pos);
-    _transportGUID = 0;
+    _transportGUID.Clear();
     _transportOffset.Relocate(0, 0, 0, 0);
 }
 
@@ -113,8 +113,8 @@ SpellCastTargets::SpellCastTargets() : m_elevation(0), m_speed(0), m_strTarget()
     m_objectTarget = NULL;
     m_itemTarget = NULL;
 
-    m_objectTargetGUID   = 0;
-    m_itemTargetGUID   = 0;
+    m_objectTargetGUID.Clear();
+    m_itemTargetGUID.Clear();
     m_itemTargetEntry  = 0;
 
     m_targetMask = 0;
@@ -130,14 +130,14 @@ void SpellCastTargets::Read(ByteBuffer& data, Unit* caster)
         return;
 
     if (m_targetMask & (TARGET_FLAG_UNIT | TARGET_FLAG_UNIT_MINIPET | TARGET_FLAG_GAMEOBJECT | TARGET_FLAG_CORPSE_ENEMY | TARGET_FLAG_CORPSE_ALLY))
-        data.readPackGUID(m_objectTargetGUID);
+        data >> m_objectTargetGUID.ReadAsPacked();
 
     if (m_targetMask & (TARGET_FLAG_ITEM | TARGET_FLAG_TRADE_ITEM))
-        data.readPackGUID(m_itemTargetGUID);
+        data >> m_itemTargetGUID.ReadAsPacked();
 
     if (m_targetMask & TARGET_FLAG_SOURCE_LOCATION)
     {
-        data.readPackGUID(m_src._transportGUID);
+        data >> m_src._transportGUID.ReadAsPacked();
         if (m_src._transportGUID)
             data >> m_src._transportOffset.PositionXYZStream();
         else
@@ -154,7 +154,7 @@ void SpellCastTargets::Read(ByteBuffer& data, Unit* caster)
 
     if (m_targetMask & TARGET_FLAG_DEST_LOCATION)
     {
-        data.readPackGUID(m_dst._transportGUID);
+        data >> m_dst._transportGUID.ReadAsPacked();
         if (m_dst._transportGUID)
             data >> m_dst._transportOffset.PositionXYZStream();
         else
@@ -180,19 +180,19 @@ void SpellCastTargets::Write(ByteBuffer& data)
     data << uint32(m_targetMask);
 
     if (m_targetMask & (TARGET_FLAG_UNIT | TARGET_FLAG_CORPSE_ALLY | TARGET_FLAG_GAMEOBJECT | TARGET_FLAG_CORPSE_ENEMY | TARGET_FLAG_UNIT_MINIPET))
-        data.appendPackGUID(m_objectTargetGUID);
+        data << m_objectTargetGUID.WriteAsPacked();
 
     if (m_targetMask & (TARGET_FLAG_ITEM | TARGET_FLAG_TRADE_ITEM))
     {
         if (m_itemTarget)
-            data.append(m_itemTarget->GetPackGUID());
+            data << m_itemTarget->GetPackGUID();
         else
             data << uint8(0);
     }
 
     if (m_targetMask & TARGET_FLAG_SOURCE_LOCATION)
     {
-        data.appendPackGUID(m_src._transportGUID); // relative position guid here - transport for example
+        data << m_src._transportGUID.WriteAsPacked(); // relative position guid here - transport for example
         if (m_src._transportGUID)
             data << m_src._transportOffset.PositionXYZStream();
         else
@@ -201,7 +201,7 @@ void SpellCastTargets::Write(ByteBuffer& data)
 
     if (m_targetMask & TARGET_FLAG_DEST_LOCATION)
     {
-        data.appendPackGUID(m_dst._transportGUID); // relative position guid here - transport for example
+        data << m_dst._transportGUID.WriteAsPacked(); // relative position guid here - transport for example
         if (m_dst._transportGUID)
             data << m_dst._transportOffset.PositionXYZStream();
         else
@@ -212,24 +212,19 @@ void SpellCastTargets::Write(ByteBuffer& data)
         data << m_strTarget;
 }
 
-uint64 SpellCastTargets::GetUnitTargetGUID() const
+ObjectGuid SpellCastTargets::GetUnitTargetGUID() const
 {
-    switch (GUID_HIPART(m_objectTargetGUID))
-    {
-        case HIGHGUID_PLAYER:
-        case HIGHGUID_VEHICLE:
-        case HIGHGUID_UNIT:
-        case HIGHGUID_PET:
-            return m_objectTargetGUID;
-        default:
-            return 0LL;
-    }
+    if (m_objectTargetGUID.IsUnit())
+        return m_objectTargetGUID;
+
+    return ObjectGuid::Empty;
 }
 
 Unit* SpellCastTargets::GetUnitTarget() const
 {
     if (m_objectTarget)
         return m_objectTarget->ToUnit();
+
     return NULL;
 }
 
@@ -243,27 +238,22 @@ void SpellCastTargets::SetUnitTarget(Unit* target)
     m_targetMask |= TARGET_FLAG_UNIT;
 }
 
-uint64 SpellCastTargets::GetGOTargetGUID() const
+ObjectGuid SpellCastTargets::GetGOTargetGUID() const
 {
-    switch (GUID_HIPART(m_objectTargetGUID))
-    {
-        case HIGHGUID_TRANSPORT:
-        case HIGHGUID_MO_TRANSPORT:
-        case HIGHGUID_GAMEOBJECT:
-            return m_objectTargetGUID;
-        default:
-            return 0LL;
-    }
+    if (m_objectTargetGUID.IsAnyTypeGameObject())
+        return m_objectTargetGUID;
+
+    return ObjectGuid::Empty;
 }
 
 GameObject* SpellCastTargets::GetGOTarget() const
 {
     if (m_objectTarget)
         return m_objectTarget->ToGameObject();
+
     return NULL;
 }
 
-
 void SpellCastTargets::SetGOTarget(GameObject* target)
 {
     if (!target)
@@ -274,21 +264,19 @@ void SpellCastTargets::SetGOTarget(GameObject* target)
     m_targetMask |= TARGET_FLAG_GAMEOBJECT;
 }
 
-uint64 SpellCastTargets::GetCorpseTargetGUID() const
+ObjectGuid SpellCastTargets::GetCorpseTargetGUID() const
 {
-    switch (GUID_HIPART(m_objectTargetGUID))
-    {
-        case HIGHGUID_CORPSE:
-            return m_objectTargetGUID;
-        default:
-            return 0LL;
-    }
+    if (m_objectTargetGUID.IsCorpse())
+        return m_objectTargetGUID;
+
+    return ObjectGuid::Empty;
 }
 
 Corpse* SpellCastTargets::GetCorpseTarget() const
 {
     if (m_objectTarget)
         return m_objectTarget->ToCorpse();
+
     return NULL;
 }
 
@@ -297,7 +285,7 @@ WorldObject* SpellCastTargets::GetObjectTarget() const
     return m_objectTarget;
 }
 
-uint64 SpellCastTargets::GetObjectTargetGUID() const
+ObjectGuid SpellCastTargets::GetObjectTargetGUID() const
 {
     return m_objectTargetGUID;
 }
@@ -305,7 +293,7 @@ uint64 SpellCastTargets::GetObjectTargetGUID() const
 void SpellCastTargets::RemoveObjectTarget()
 {
     m_objectTarget = NULL;
-    m_objectTargetGUID = 0LL;
+    m_objectTargetGUID.Clear();
     m_targetMask &= ~(TARGET_FLAG_UNIT_MASK | TARGET_FLAG_CORPSE_MASK | TARGET_FLAG_GAMEOBJECT_MASK);
 }
 
@@ -322,7 +310,7 @@ void SpellCastTargets::SetItemTarget(Item* item)
 
 void SpellCastTargets::SetTradeItemTarget(Player* caster)
 {
-    m_itemTargetGUID = uint64(TRADE_SLOT_NONTRADED);
+    m_itemTargetGUID.Set(uint64(TRADE_SLOT_NONTRADED));
     m_itemTargetEntry = 0;
     m_targetMask |= TARGET_FLAG_TRADE_ITEM;
 
@@ -445,7 +433,7 @@ void SpellCastTargets::Update(Unit* caster)
         if (m_targetMask & TARGET_FLAG_ITEM)
             m_itemTarget = player->GetItemByGuid(m_itemTargetGUID);
         else if (m_targetMask & TARGET_FLAG_TRADE_ITEM)
-            if (m_itemTargetGUID == TRADE_SLOT_NONTRADED) // here it is not guid but slot. Also prevents hacking slots
+            if (m_itemTargetGUID.GetRawValue() == TRADE_SLOT_NONTRADED) // here it is not guid but slot. Also prevents hacking slots
                 if (TradeData* pTrade = player->GetTradeData())
                     m_itemTarget = pTrade->GetTraderData()->GetItem(TRADE_SLOT_NONTRADED);
 
@@ -480,15 +468,15 @@ void SpellCastTargets::OutDebug() const
 
     TC_LOG_INFO("spells", "target mask: %u", m_targetMask);
     if (m_targetMask & (TARGET_FLAG_UNIT_MASK | TARGET_FLAG_CORPSE_MASK | TARGET_FLAG_GAMEOBJECT_MASK))
-        TC_LOG_INFO("spells", "Object target: " UI64FMTD, m_objectTargetGUID);
+        TC_LOG_INFO("spells", "Object target: %s", m_objectTargetGUID.ToString().c_str());
     if (m_targetMask & TARGET_FLAG_ITEM)
-        TC_LOG_INFO("spells", "Item target: " UI64FMTD, m_itemTargetGUID);
+        TC_LOG_INFO("spells", "Item target: %s", m_itemTargetGUID.ToString().c_str());
     if (m_targetMask & TARGET_FLAG_TRADE_ITEM)
-        TC_LOG_INFO("spells", "Trade item target: " UI64FMTD, m_itemTargetGUID);
+        TC_LOG_INFO("spells", "Trade item target: %s", m_itemTargetGUID.ToString().c_str());
     if (m_targetMask & TARGET_FLAG_SOURCE_LOCATION)
-        TC_LOG_INFO("spells", "Source location: transport guid:" UI64FMTD " trans offset: %s position: %s", m_src._transportGUID, m_src._transportOffset.ToString().c_str(), m_src._position.ToString().c_str());
+        TC_LOG_INFO("spells", "Source location: transport guid:%s trans offset: %s position: %s", m_src._transportGUID.ToString().c_str(), m_src._transportOffset.ToString().c_str(), m_src._position.ToString().c_str());
     if (m_targetMask & TARGET_FLAG_DEST_LOCATION)
-        TC_LOG_INFO("spells", "Destination location: transport guid:" UI64FMTD " trans offset: %s position: %s", m_dst._transportGUID, m_dst._transportOffset.ToString().c_str(), m_dst._position.ToString().c_str());
+        TC_LOG_INFO("spells", "Destination location: transport guid:%s trans offset: %s position: %s", m_dst._transportGUID.ToString().c_str(), m_dst._transportOffset.ToString().c_str(), m_dst._position.ToString().c_str());
     if (m_targetMask & TARGET_FLAG_STRING)
         TC_LOG_INFO("spells", "String: %s", m_strTarget.c_str());
     TC_LOG_INFO("spells", "speed: %f", m_speed);
@@ -504,7 +492,7 @@ SpellValue::SpellValue(SpellInfo const* proto)
     AuraStackAmount = 1;
 }
 
-Spell::Spell(Unit* caster, SpellInfo const* info, TriggerCastFlags triggerFlags, uint64 originalCasterGUID, bool skipCheck) :
+Spell::Spell(Unit* caster, SpellInfo const* info, TriggerCastFlags triggerFlags, ObjectGuid originalCasterGUID, bool skipCheck) :
 m_spellInfo(sSpellMgr->GetSpellForDifficultyFromSpell(info, caster)),
 m_caster((info->AttributesEx6 & SPELL_ATTR6_CAST_BY_CHARMER && caster->GetCharmerOrOwner()) ? caster->GetCharmerOrOwner() : caster)
 , m_spellValue(new SpellValue(m_spellInfo)), m_preGeneratedPath(PathGenerator(m_caster))
@@ -572,7 +560,7 @@ m_caster((info->AttributesEx6 & SPELL_ATTR6_CAST_BY_CHARMER && caster->GetCharme
         _triggeredCastFlags = TriggerCastFlags(TRIGGERED_FULL_MASK & ~TRIGGERED_IGNORE_EQUIPPED_ITEM_REQUIREMENT);
 
     m_CastItem = NULL;
-    m_castItemGUID = 0;
+    m_castItemGUID.Clear();
     m_castItemEntry = 0;
 
     unitTarget = NULL;
@@ -958,7 +946,7 @@ void Spell::SelectImplicitChannelTargets(SpellEffIndex effIndex, SpellImplicitTa
     {
         case TARGET_UNIT_CHANNEL_TARGET:
         {
-            WorldObject* target = ObjectAccessor::GetUnit(*m_caster, m_originalCaster->GetUInt64Value(UNIT_FIELD_CHANNEL_OBJECT));
+            WorldObject* target = ObjectAccessor::GetUnit(*m_caster, m_originalCaster->GetChannelObjectGuid());
             CallScriptObjectTargetSelectHandlers(target, effIndex, targetType);
             // unit target may be no longer avalible - teleported out of map for example
             if (target && target->ToUnit())
@@ -970,7 +958,7 @@ void Spell::SelectImplicitChannelTargets(SpellEffIndex effIndex, SpellImplicitTa
         case TARGET_DEST_CHANNEL_TARGET:
             if (channeledSpell->m_targets.HasDst())
                 m_targets.SetDst(channeledSpell->m_targets);
-            else if (WorldObject* target = ObjectAccessor::GetWorldObject(*m_caster, m_originalCaster->GetUInt64Value(UNIT_FIELD_CHANNEL_OBJECT)))
+            else if (WorldObject* target = ObjectAccessor::GetWorldObject(*m_caster, m_originalCaster->GetChannelObjectGuid()))
             {
                 CallScriptObjectTargetSelectHandlers(target, effIndex, targetType);
                 if (target)
@@ -1068,7 +1056,7 @@ void Spell::SelectImplicitNearbyTargets(SpellEffIndex effIndex, SpellImplicitTar
                 AddUnitTarget(unitTarget, effMask, true, false);
             else
             {
-                TC_LOG_DEBUG("spells", "Spell::SelectImplicitNearbyTargets: OnObjectTargetSelect script hook for spell Id %u set object of wrong type, expected unit, got %s, effect %u", m_spellInfo->Id, GetLogNameForGuid(target->GetGUID()), effMask);
+                TC_LOG_DEBUG("spells", "Spell::SelectImplicitNearbyTargets: OnObjectTargetSelect script hook for spell Id %u set object of wrong type, expected unit, got %s, effect %u", m_spellInfo->Id, target->GetGUID().GetTypeName(), effMask);
                 return;
             }
             break;
@@ -1078,7 +1066,7 @@ void Spell::SelectImplicitNearbyTargets(SpellEffIndex effIndex, SpellImplicitTar
                 AddGOTarget(gobjTarget, effMask);
             else
             {
-                TC_LOG_DEBUG("spells", "Spell::SelectImplicitNearbyTargets: OnObjectTargetSelect script hook for spell Id %u set object of wrong type, expected gameobject, got %s, effect %u", m_spellInfo->Id, GetLogNameForGuid(target->GetGUID()), effMask);
+                TC_LOG_DEBUG("spells", "Spell::SelectImplicitNearbyTargets: OnObjectTargetSelect script hook for spell Id %u set object of wrong type, expected gameobject, got %s, effect %u", m_spellInfo->Id, target->GetGUID().GetTypeName(), effMask);
                 return;
             }
             break;
@@ -2016,7 +2004,7 @@ void Spell::AddUnitTarget(Unit* target, uint32 effectMask, bool checkIfValid /*=
         if (target->IsImmunedToSpellEffect(m_spellInfo, effIndex))
             effectMask &= ~(1 << effIndex);
 
-    uint64 targetGUID = target->GetGUID();
+    ObjectGuid targetGUID = target->GetGUID();
 
     // Lookup target in already in list
     for (std::list<TargetInfo>::iterator ihit = m_UniqueTargetInfo.begin(); ihit != m_UniqueTargetInfo.end(); ++ihit)
@@ -2130,7 +2118,7 @@ void Spell::AddGOTarget(GameObject* go, uint32 effectMask)
     if (!effectMask)
         return;
 
-    uint64 targetGUID = go->GetGUID();
+    ObjectGuid targetGUID = go->GetGUID();
 
     // Lookup target in already in list
     for (std::list<GOTargetInfo>::iterator ihit = m_UniqueGOTargetInfo.begin(); ihit != m_UniqueGOTargetInfo.end(); ++ihit)
@@ -2564,7 +2552,7 @@ SpellMissInfo Spell::DoSpellHitOnUnit(Unit* unit, uint32 effectMask, bool scaleA
         {
             bool refresh = false;
             m_spellAura = Aura::TryRefreshStackOrCreate(aurSpellInfo, effectMask, unit,
-                m_originalCaster, (aurSpellInfo == m_spellInfo)? &m_spellValue->EffectBasePoints[0] : &basePoints[0], m_CastItem, 0, &refresh);
+                m_originalCaster, (aurSpellInfo == m_spellInfo) ? &m_spellValue->EffectBasePoints[0] : &basePoints[0], m_CastItem, ObjectGuid::Empty, &refresh);
             if (m_spellAura)
             {
                 // Set aura stack amount to desired value
@@ -2821,7 +2809,7 @@ void Spell::prepare(SpellCastTargets const* targets, AuraEffect const* triggered
     }
     else
     {
-        m_castItemGUID = 0;
+        m_castItemGUID.Clear();
         m_castItemEntry = 0;
     }
 
@@ -3787,11 +3775,11 @@ void Spell::SendSpellStart()
 
     WorldPacket data(SMSG_SPELL_START, (8+8+4+4+2));
     if (m_CastItem)
-        data.append(m_CastItem->GetPackGUID());
+        data << m_CastItem->GetPackGUID();
     else
-        data.append(m_caster->GetPackGUID());
+        data << m_caster->GetPackGUID();
 
-    data.append(m_caster->GetPackGUID());
+    data << m_caster->GetPackGUID();
     data << uint8(m_cast_count);                            // pending spell cast?
     data << uint32(m_spellInfo->Id);                        // spellId
     data << uint32(castFlags);                              // cast flags
@@ -3891,11 +3879,11 @@ void Spell::SendSpellGo()
     WorldPacket data(SMSG_SPELL_GO, 50);                    // guess size
 
     if (m_CastItem)
-        data.append(m_CastItem->GetPackGUID());
+        data << m_CastItem->GetPackGUID();
     else
-        data.append(m_caster->GetPackGUID());
+        data << m_caster->GetPackGUID();
 
-    data.append(m_caster->GetPackGUID());
+    data << m_caster->GetPackGUID();
     data << uint8(m_cast_count);                            // pending spell cast?
     data << uint32(m_spellInfo->Id);                        // spellId
     data << uint32(castFlags);                              // cast flags
@@ -4029,7 +4017,7 @@ void Spell::SendLogExecute()
 {
     WorldPacket data(SMSG_SPELLLOGEXECUTE, (8+4+4+4+4+8));
 
-    data.append(m_caster->GetPackGUID());
+    data << m_caster->GetPackGUID();
 
     data << uint32(m_spellInfo->Id);
 
@@ -4062,7 +4050,7 @@ void Spell::SendLogExecute()
 void Spell::ExecuteLogEffectTakeTargetPower(uint8 effIndex, Unit* target, uint32 powerType, uint32 powerTaken, float gainMultiplier)
 {
     InitEffectExecuteData(effIndex);
-    m_effectExecuteData[effIndex]->append(target->GetPackGUID());
+    *m_effectExecuteData[effIndex] << target->GetPackGUID();
     *m_effectExecuteData[effIndex] << uint32(powerTaken);
     *m_effectExecuteData[effIndex] << uint32(powerType);
     *m_effectExecuteData[effIndex] << float(gainMultiplier);
@@ -4071,7 +4059,7 @@ void Spell::ExecuteLogEffectTakeTargetPower(uint8 effIndex, Unit* target, uint32
 void Spell::ExecuteLogEffectExtraAttacks(uint8 effIndex, Unit* victim, uint32 attCount)
 {
     InitEffectExecuteData(effIndex);
-    m_effectExecuteData[effIndex]->append(victim->GetPackGUID());
+    *m_effectExecuteData[effIndex] << victim->GetPackGUID();
     *m_effectExecuteData[effIndex] << uint32(attCount);
 }
 
@@ -4123,7 +4111,7 @@ void Spell::ExecuteLogEffectInterruptCast(uint8 /*effIndex*/, Unit* victim, uint
 void Spell::ExecuteLogEffectDurabilityDamage(uint8 effIndex, Unit* victim, int32 itemId, int32 slot)
 {
     InitEffectExecuteData(effIndex);
-    m_effectExecuteData[effIndex]->append(victim->GetPackGUID());
+    *m_effectExecuteData[effIndex] << victim->GetPackGUID();
     *m_effectExecuteData[effIndex] << int32(itemId);
     *m_effectExecuteData[effIndex] << int32(slot);
 }
@@ -4131,7 +4119,7 @@ void Spell::ExecuteLogEffectDurabilityDamage(uint8 effIndex, Unit* victim, int32
 void Spell::ExecuteLogEffectOpenLock(uint8 effIndex, Object* obj)
 {
     InitEffectExecuteData(effIndex);
-    m_effectExecuteData[effIndex]->append(obj->GetPackGUID());
+    *m_effectExecuteData[effIndex] << obj->GetPackGUID();
 }
 
 void Spell::ExecuteLogEffectCreateItem(uint8 effIndex, uint32 entry)
@@ -4149,32 +4137,32 @@ void Spell::ExecuteLogEffectDestroyItem(uint8 effIndex, uint32 entry)
 void Spell::ExecuteLogEffectSummonObject(uint8 effIndex, WorldObject* obj)
 {
     InitEffectExecuteData(effIndex);
-    m_effectExecuteData[effIndex]->append(obj->GetPackGUID());
+    *m_effectExecuteData[effIndex] << obj->GetPackGUID();
 }
 
 void Spell::ExecuteLogEffectUnsummonObject(uint8 effIndex, WorldObject* obj)
 {
     InitEffectExecuteData(effIndex);
-    m_effectExecuteData[effIndex]->append(obj->GetPackGUID());
+    *m_effectExecuteData[effIndex] << obj->GetPackGUID();
 }
 
 void Spell::ExecuteLogEffectResurrect(uint8 effIndex, Unit* target)
 {
     InitEffectExecuteData(effIndex);
-    m_effectExecuteData[effIndex]->append(target->GetPackGUID());
+    *m_effectExecuteData[effIndex] << target->GetPackGUID();
 }
 
 void Spell::SendInterrupted(uint8 result)
 {
     WorldPacket data(SMSG_SPELL_FAILURE, (8+4+1));
-    data.append(m_caster->GetPackGUID());
+    data << m_caster->GetPackGUID();
     data << uint8(m_cast_count);
     data << uint32(m_spellInfo->Id);
     data << uint8(result);
     m_caster->SendMessageToSet(&data, true);
 
     data.Initialize(SMSG_SPELL_FAILED_OTHER, (8+4));
-    data.append(m_caster->GetPackGUID());
+    data << m_caster->GetPackGUID();
     data << uint8(m_cast_count);
     data << uint32(m_spellInfo->Id);
     data << uint8(result);
@@ -4185,12 +4173,12 @@ void Spell::SendChannelUpdate(uint32 time)
 {
     if (time == 0)
     {
-        m_caster->SetUInt64Value(UNIT_FIELD_CHANNEL_OBJECT, 0);
+        m_caster->SetChannelObjectGuid(ObjectGuid::Empty);
         m_caster->SetUInt32Value(UNIT_CHANNEL_SPELL, 0);
     }
 
     WorldPacket data(MSG_CHANNEL_UPDATE, 8+4);
-    data.append(m_caster->GetPackGUID());
+    data << m_caster->GetPackGUID();
     data << uint32(time);
 
     m_caster->SendMessageToSet(&data, true);
@@ -4198,13 +4186,13 @@ void Spell::SendChannelUpdate(uint32 time)
 
 void Spell::SendChannelStart(uint32 duration)
 {
-    uint64 channelTarget = m_targets.GetObjectTargetGUID();
+    ObjectGuid channelTarget = m_targets.GetObjectTargetGUID();
     if (!channelTarget && !m_spellInfo->NeedsExplicitUnitTarget())
         if (m_UniqueTargetInfo.size() + m_UniqueGOTargetInfo.size() == 1)   // this is for TARGET_SELECT_CATEGORY_NEARBY
             channelTarget = !m_UniqueTargetInfo.empty() ? m_UniqueTargetInfo.front().targetGUID : m_UniqueGOTargetInfo.front().targetGUID;
 
     WorldPacket data(MSG_CHANNEL_START, (8+4+4));
-    data.append(m_caster->GetPackGUID());
+    data << m_caster->GetPackGUID();
     data << uint32(m_spellInfo->Id);
     data << uint32(duration);
     data << uint8(0);                           // immunity (castflag & 0x04000000)
@@ -4230,7 +4218,7 @@ void Spell::SendChannelStart(uint32 duration)
 
     m_timer = duration;
     if (channelTarget)
-        m_caster->SetUInt64Value(UNIT_FIELD_CHANNEL_OBJECT, channelTarget);
+        m_caster->SetChannelObjectGuid(channelTarget);
 
     m_caster->SetUInt32Value(UNIT_CHANNEL_SPELL, m_spellInfo->Id);
 }
@@ -4320,7 +4308,7 @@ void Spell::TakeCastItem()
             m_targets.SetItemTarget(NULL);
 
         m_CastItem = NULL;
-        m_castItemGUID = 0;
+        m_castItemGUID.Clear();
         m_castItemEntry = 0;
     }
 }
@@ -4342,7 +4330,7 @@ void Spell::TakePower()
     if (m_caster->GetTypeId() == TYPEID_PLAYER)
     {
         if (powerType == POWER_RAGE || powerType == POWER_ENERGY || powerType == POWER_RUNES)
-            if (uint64 targetGUID = m_targets.GetUnitTargetGUID())
+            if (ObjectGuid targetGUID = m_targets.GetUnitTargetGUID())
                 for (std::list<TargetInfo>::iterator ihit= m_UniqueTargetInfo.begin(); ihit != m_UniqueTargetInfo.end(); ++ihit)
                     if (ihit->targetGUID == targetGUID)
                     {
@@ -4560,7 +4548,7 @@ void Spell::TakeReagents()
             }
 
             m_CastItem = NULL;
-            m_castItemGUID = 0;
+            m_castItemGUID.Clear();
             m_castItemEntry = 0;
         }
 
@@ -5186,7 +5174,7 @@ SpellCastResult Spell::CheckCast(bool strict)
                 if (m_targets.GetTargetMask() & TARGET_FLAG_TRADE_ITEM)
                 {
                     if (TradeData* pTrade = m_caster->ToPlayer()->GetTradeData())
-                        pTempItem = pTrade->GetTraderData()->GetItem(TradeSlots(m_targets.GetItemTargetGUID()));
+                        pTempItem = pTrade->GetTraderData()->GetItem(TradeSlots(m_targets.GetItemTargetGUID().GetRawValue()));  // at this point item target guid contains the trade slot
                 }
                 else if (m_targets.GetTargetMask() & TARGET_FLAG_ITEM)
                     pTempItem = m_caster->ToPlayer()->GetItemByGuid(m_targets.GetItemTargetGUID());
@@ -5514,7 +5502,8 @@ SpellCastResult Spell::CheckCast(bool strict)
         if (!my_trade)
             return SPELL_FAILED_NOT_TRADING;
 
-        TradeSlots slot = TradeSlots(m_targets.GetItemTargetGUID());
+        // Item target guid contains trade slot until m_targets.UpdateTradeSlotItem() is called
+        TradeSlots slot = TradeSlots(m_targets.GetItemTargetGUID().GetRawValue());
         if (slot != TRADE_SLOT_NONTRADED)
             return SPELL_FAILED_BAD_TARGETS;
 
@@ -5728,7 +5717,7 @@ SpellCastResult Spell::CheckArenaAndRatedBattlegroundCastRules()
 
 bool Spell::CanAutoCast(Unit* target)
 {
-    uint64 targetguid = target->GetGUID();
+    ObjectGuid targetguid = target->GetGUID();
 
     for (uint32 j = 0; j < MAX_SPELL_EFFECTS; ++j)
     {
@@ -6347,7 +6336,7 @@ void Spell::Delayed() // only called in DealDamage()
     TC_LOG_INFO("spells", "Spell %u partially interrupted for (%d) ms at damage", m_spellInfo->Id, delaytime);
 
     WorldPacket data(SMSG_SPELL_DELAYED, 8+4);
-    data.append(m_caster->GetPackGUID());
+    data << m_caster->GetPackGUID();
     data << uint32(delaytime);
 
     m_caster->SendMessageToSet(&data, true);
@@ -6522,7 +6511,7 @@ bool Spell::CheckEffectTarget(Unit const* target, uint32 eff, Position const* lo
             {
                 // Get GO cast coordinates if original caster -> GO
                 WorldObject* caster = NULL;
-                if (IS_GAMEOBJECT_GUID(m_originalCasterGUID))
+                if (m_originalCasterGUID.IsGameObject())
                     caster = m_caster->GetMap()->GetGameObject(m_originalCasterGUID);
                 if (!caster)
                     caster = m_caster;
@@ -7308,8 +7297,7 @@ WorldObjectSpellTargetCheck::WorldObjectSpellTargetCheck(Unit* caster, Unit* ref
 
 WorldObjectSpellTargetCheck::~WorldObjectSpellTargetCheck()
 {
-    if (_condSrcInfo)
-        delete _condSrcInfo;
+    delete _condSrcInfo;
 }
 
 bool WorldObjectSpellTargetCheck::operator()(WorldObject* target)
diff --git a/src/server/game/Spells/Spell.h b/src/server/game/Spells/Spell.h
index 5d854659f4e..9fc3deaef99 100644
--- a/src/server/game/Spells/Spell.h
+++ b/src/server/game/Spells/Spell.h
@@ -91,7 +91,7 @@ struct SpellDestination
     void RelocateOffset(Position const& offset);
 
     WorldLocation _position;
-    uint64 _transportGUID;
+    ObjectGuid _transportGUID;
     Position _transportOffset;
 };
 
@@ -109,22 +109,22 @@ class SpellCastTargets
 
         void SetTargetFlag(SpellCastTargetFlags flag) { m_targetMask |= flag; }
 
-        uint64 GetUnitTargetGUID() const;
+        ObjectGuid GetUnitTargetGUID() const;
         Unit* GetUnitTarget() const;
         void SetUnitTarget(Unit* target);
 
-        uint64 GetGOTargetGUID() const;
+        ObjectGuid GetGOTargetGUID() const;
         GameObject* GetGOTarget() const;
         void SetGOTarget(GameObject* target);
 
-        uint64 GetCorpseTargetGUID() const;
+        ObjectGuid GetCorpseTargetGUID() const;
         Corpse* GetCorpseTarget() const;
 
         WorldObject* GetObjectTarget() const;
-        uint64 GetObjectTargetGUID() const;
+        ObjectGuid GetObjectTargetGUID() const;
         void RemoveObjectTarget();
 
-        uint64 GetItemTargetGUID() const { return m_itemTargetGUID; }
+        ObjectGuid GetItemTargetGUID() const { return m_itemTargetGUID; }
         Item* GetItemTarget() const { return m_itemTarget; }
         uint32 GetItemTargetEntry() const { return m_itemTargetEntry; }
         void SetItemTarget(Item* item);
@@ -174,8 +174,8 @@ class SpellCastTargets
         Item* m_itemTarget;
 
         // object GUID/etc, can be used always
-        uint64 m_objectTargetGUID;
-        uint64 m_itemTargetGUID;
+        ObjectGuid m_objectTargetGUID;
+        ObjectGuid m_itemTargetGUID;
         uint32 m_itemTargetEntry;
 
         SpellDestination m_src;
@@ -212,6 +212,8 @@ enum SpellEffectHandleMode
     SPELL_EFFECT_HANDLE_HIT_TARGET
 };
 
+typedef std::list<std::pair<uint32, ObjectGuid>> DispelList;
+
 class Spell
 {
     friend void Unit::SetCurrentCastSpell(Spell* pSpell);
@@ -351,7 +353,7 @@ class Spell
 
         typedef std::set<Aura*> UsedSpellMods;
 
-        Spell(Unit* caster, SpellInfo const* info, TriggerCastFlags triggerFlags, uint64 originalCasterGUID = 0, bool skipCheck = false);
+        Spell(Unit* caster, SpellInfo const* info, TriggerCastFlags triggerFlags, ObjectGuid originalCasterGUID = ObjectGuid::Empty, bool skipCheck = false);
         ~Spell();
 
         void InitExplicitTargets(SpellCastTargets const& targets);
@@ -455,7 +457,7 @@ class Spell
 
         SpellInfo const* const m_spellInfo;
         Item* m_CastItem;
-        uint64 m_castItemGUID;
+        ObjectGuid m_castItemGUID;
         uint32 m_castItemEntry;
         uint8 m_cast_count;
         uint32 m_glyphIndex;
@@ -502,13 +504,13 @@ class Spell
         void TriggerGlobalCooldown();
         void CancelGlobalCooldown();
 
-        void SendLoot(uint64 guid, LootType loottype);
+        void SendLoot(ObjectGuid guid, LootType loottype);
 
         Unit* const m_caster;
 
         SpellValue* const m_spellValue;
 
-        uint64 m_originalCasterGUID;                        // real source of cast (aura caster/etc), used for spell targets selection
+        ObjectGuid m_originalCasterGUID;                    // real source of cast (aura caster/etc), used for spell targets selection
                                                             // e.g. damage around area spell trigered by victim aura and damage enemies of aura caster
         Unit* m_originalCaster;                             // cached pointer for m_originalCaster, updated at Spell::UpdatePointers()
 
@@ -581,7 +583,7 @@ class Spell
         // Targets store structures and data
         struct TargetInfo
         {
-            uint64 targetGUID;
+            ObjectGuid targetGUID;
             uint64 timeDelay;
             SpellMissInfo missCondition:8;
             SpellMissInfo reflectResult:8;
@@ -597,7 +599,7 @@ class Spell
 
         struct GOTargetInfo
         {
-            uint64 targetGUID;
+            ObjectGuid targetGUID;
             uint64 timeDelay;
             uint8  effectMask:8;
             bool   processed:1;
diff --git a/src/server/game/Spells/SpellEffects.cpp b/src/server/game/Spells/SpellEffects.cpp
index a5e2971c8df..b68b6dfbc04 100644
--- a/src/server/game/Spells/SpellEffects.cpp
+++ b/src/server/game/Spells/SpellEffects.cpp
@@ -1265,7 +1265,7 @@ void Spell::EffectHeal(SpellEffIndex /*effIndex*/)
 
             if (!targetAura)
             {
-                TC_LOG_ERROR("spells", "Target(GUID:" UI64FMTD ") has aurastate AURA_STATE_SWIFTMEND but no matching aura.", unitTarget->GetGUID());
+                TC_LOG_ERROR("spells", "Target (%s) has aurastate AURA_STATE_SWIFTMEND but no matching aura.", unitTarget->GetGUID().ToString().c_str());
                 return;
             }
 
@@ -1461,7 +1461,7 @@ void Spell::DoCreateItem(uint32 /*i*/, uint32 itemtype)
 
         // set the "Crafted by ..." property of the item
         if (pItem->GetTemplate()->Class != ITEM_CLASS_CONSUMABLE && pItem->GetTemplate()->Class != ITEM_CLASS_QUEST && newitemid != 6265 && newitemid != 6948)
-            pItem->SetUInt32Value(ITEM_FIELD_CREATOR, player->GetGUIDLow());
+            pItem->SetGuidValue(ITEM_FIELD_CREATOR, player->GetGUID());
 
         // send info to the client
         player->SendNewItem(pItem, num_to_add, true, bgType == 0);
@@ -1713,7 +1713,7 @@ void Spell::EffectEnergizePct(SpellEffIndex effIndex)
     m_caster->EnergizeBySpell(unitTarget, m_spellInfo->Id, gain, power);
 }
 
-void Spell::SendLoot(uint64 guid, LootType loottype)
+void Spell::SendLoot(ObjectGuid guid, LootType loottype)
 {
     Player* player = m_caster->ToPlayer();
     if (!player)
@@ -1795,7 +1795,7 @@ void Spell::EffectOpenLock(SpellEffIndex effIndex)
     Player* player = m_caster->ToPlayer();
 
     uint32 lockId = 0;
-    uint64 guid = 0;
+    ObjectGuid guid;
 
     // Get lockId
     if (gameObjTarget)
@@ -1938,7 +1938,7 @@ void Spell::EffectSummonChangeItem(SpellEffIndex effIndex)
                 m_targets.SetItemTarget(NULL);
 
             m_CastItem = NULL;
-            m_castItemGUID = 0;
+            m_castItemGUID.Clear();
             m_castItemEntry = 0;
 
             player->StoreItem(dest, pNewItem, true);
@@ -1958,7 +1958,7 @@ void Spell::EffectSummonChangeItem(SpellEffIndex effIndex)
                 m_targets.SetItemTarget(NULL);
 
             m_CastItem = NULL;
-            m_castItemGUID = 0;
+            m_castItemGUID.Clear();
             m_castItemEntry = 0;
 
             player->BankItem(dest, pNewItem, true);
@@ -1982,7 +1982,7 @@ void Spell::EffectSummonChangeItem(SpellEffIndex effIndex)
                 m_targets.SetItemTarget(NULL);
 
             m_CastItem = NULL;
-            m_castItemGUID = 0;
+            m_castItemGUID.Clear();
             m_castItemEntry = 0;
 
             player->EquipItem(dest, pNewItem, true);
@@ -2220,7 +2220,6 @@ void Spell::EffectLearnSpell(SpellEffIndex effIndex)
     TC_LOG_DEBUG("spells", "Spell: Player %u has learned spell %u from NpcGUID=%u", player->GetGUIDLow(), spellToLearn, m_caster->GetGUIDLow());
 }
 
-typedef std::list< std::pair<uint32, uint64> > DispelList;
 void Spell::EffectDispel(SpellEffIndex effIndex)
 {
     if (effectHandleMode != SPELL_EFFECT_HANDLE_HIT_TARGET)
@@ -2299,8 +2298,8 @@ void Spell::EffectDispel(SpellEffIndex effIndex)
 
     WorldPacket dataSuccess(SMSG_SPELLDISPELLOG, 8+8+4+1+4+success_list.size()*5);
     // Send packet header
-    dataSuccess.append(unitTarget->GetPackGUID());         // Victim GUID
-    dataSuccess.append(m_caster->GetPackGUID());           // Caster GUID
+    dataSuccess << unitTarget->GetPackGUID();         // Victim GUID
+    dataSuccess << m_caster->GetPackGUID();           // Caster GUID
     dataSuccess << uint32(m_spellInfo->Id);                // dispel spell id
     dataSuccess << uint8(0);                               // not used
     dataSuccess << uint32(success_list.size());            // count
@@ -2410,7 +2409,7 @@ void Spell::EffectUntrainTalents(SpellEffIndex /*effIndex*/)
     if (!unitTarget || m_caster->GetTypeId() == TYPEID_PLAYER)
         return;
 
-    if (uint64 guid = m_caster->GetGUID()) // the trainer is the caster
+    if (ObjectGuid guid = m_caster->GetGUID()) // the trainer is the caster
         unitTarget->ToPlayer()->SendTalentWipeConfirm(guid);
 }
 
@@ -3911,8 +3910,8 @@ void Spell::EffectDuel(SpellEffIndex effIndex)
     duel2->isMounted  = (GetSpellInfo()->Id == 62875); // Mounted Duel
     target->duel      = duel2;
 
-    caster->SetUInt64Value(PLAYER_DUEL_ARBITER, pGameObj->GetGUID());
-    target->SetUInt64Value(PLAYER_DUEL_ARBITER, pGameObj->GetGUID());
+    caster->SetGuidValue(PLAYER_DUEL_ARBITER, pGameObj->GetGUID());
+    target->SetGuidValue(PLAYER_DUEL_ARBITER, pGameObj->GetGUID());
 
     sScriptMgr->OnPlayerDuelRequest(target, caster);
 }
@@ -4201,7 +4200,7 @@ void Spell::EffectSummonObject(SpellEffIndex effIndex)
     uint32 go_id = m_spellInfo->Effects[effIndex].MiscValue;
     uint8 slot = m_spellInfo->Effects[effIndex].Effect - SPELL_EFFECT_SUMMON_OBJECT_SLOT1;
 
-    if (uint64 guid = m_caster->m_ObjectSlot[slot])
+    if (ObjectGuid guid = m_caster->m_ObjectSlot[slot])
     {
         if (GameObject* obj = m_caster->GetMap()->GetGameObject(guid))
         {
@@ -4210,7 +4209,7 @@ void Spell::EffectSummonObject(SpellEffIndex effIndex)
                 obj->SetSpellId(0);
             m_caster->RemoveGameObject(obj, true);
         }
-        m_caster->m_ObjectSlot[slot] = 0;
+        m_caster->m_ObjectSlot[slot].Clear();
     }
 
     GameObject* go = new GameObject();
@@ -4454,15 +4453,16 @@ void Spell::EffectCharge(SpellEffIndex /*effIndex*/)
 
     if (effectHandleMode == SPELL_EFFECT_HANDLE_LAUNCH_TARGET)
     {
+        float speed = G3D::fuzzyGt(m_spellInfo->Speed, 0.0f) ? m_spellInfo->Speed : SPEED_CHARGE;
         // Spell is not using explicit target - no generated path
         if (m_preGeneratedPath.GetPathType() == PATHFIND_BLANK)
         {
             //unitTarget->GetContactPoint(m_caster, pos.m_positionX, pos.m_positionY, pos.m_positionZ);
             Position pos = unitTarget->GetFirstCollisionPosition(unitTarget->GetObjectSize(), unitTarget->GetRelativeAngle(m_caster));
-            m_caster->GetMotionMaster()->MoveCharge(pos.m_positionX, pos.m_positionY, pos.m_positionZ);
+            m_caster->GetMotionMaster()->MoveCharge(pos.m_positionX, pos.m_positionY, pos.m_positionZ, speed);
         }
         else
-            m_caster->GetMotionMaster()->MoveCharge(m_preGeneratedPath);
+            m_caster->GetMotionMaster()->MoveCharge(m_preGeneratedPath, speed);
     }
 
     if (effectHandleMode == SPELL_EFFECT_HANDLE_HIT_TARGET)
@@ -4635,9 +4635,7 @@ void Spell::EffectDispelMechanic(SpellEffIndex effIndex)
         return;
 
     uint32 mechanic = m_spellInfo->Effects[effIndex].MiscValue;
-
-    std::queue < std::pair < uint32, uint64 > > dispel_list;
-
+    DispelList dispel_list;
     Unit::AuraMap const& auras = unitTarget->GetOwnedAuras();
     for (Unit::AuraMap::const_iterator itr = auras.begin(); itr != auras.end(); ++itr)
     {
@@ -4646,12 +4644,13 @@ void Spell::EffectDispelMechanic(SpellEffIndex effIndex)
             continue;
         if (roll_chance_i(aura->CalcDispelChance(unitTarget, !unitTarget->IsFriendlyTo(m_caster))))
             if ((aura->GetSpellInfo()->GetAllEffectsMechanicMask() & (1 << mechanic)))
-                dispel_list.push(std::make_pair(aura->GetId(), aura->GetCasterGUID()));
+                dispel_list.push_back(std::make_pair(aura->GetId(), aura->GetCasterGUID()));
     }
 
-    for (; dispel_list.size(); dispel_list.pop())
+    while (!dispel_list.empty())
     {
         unitTarget->RemoveAura(dispel_list.front().first, dispel_list.front().second, 0, AURA_REMOVE_BY_ENEMY_SPELL);
+        dispel_list.pop_front();
     }
 }
 
@@ -4873,7 +4872,7 @@ void Spell::EffectTransmitted(SpellEffIndex effIndex)
     {
         case GAMEOBJECT_TYPE_FISHINGNODE:
         {
-            m_caster->SetUInt64Value(UNIT_FIELD_CHANNEL_OBJECT, pGameObj->GetGUID());
+            m_caster->SetChannelObjectGuid(pGameObj->GetGUID());
             m_caster->AddGameObject(pGameObj);              // will removed at spell cancel
 
             // end time of range when possible catch fish (FISHING_BOBBER_READY_TIME..GetDuration(m_spellInfo))
@@ -5137,8 +5136,8 @@ void Spell::EffectStealBeneficialBuff(SpellEffIndex effIndex)
         return;
 
     WorldPacket dataSuccess(SMSG_SPELLSTEALLOG, 8+8+4+1+4+damage*5);
-    dataSuccess.append(unitTarget->GetPackGUID());  // Victim GUID
-    dataSuccess.append(m_caster->GetPackGUID());    // Caster GUID
+    dataSuccess << unitTarget->GetPackGUID();  // Victim GUID
+    dataSuccess << m_caster->GetPackGUID();    // Caster GUID
     dataSuccess << uint32(m_spellInfo->Id);         // dispel spell id
     dataSuccess << uint8(0);                        // not used
     dataSuccess << uint32(success_list.size());     // count
@@ -5159,7 +5158,7 @@ void Spell::EffectKillCreditPersonal(SpellEffIndex effIndex)
     if (!unitTarget || unitTarget->GetTypeId() != TYPEID_PLAYER)
         return;
 
-    unitTarget->ToPlayer()->KilledMonsterCredit(m_spellInfo->Effects[effIndex].MiscValue, 0);
+    unitTarget->ToPlayer()->KilledMonsterCredit(m_spellInfo->Effects[effIndex].MiscValue);
 }
 
 void Spell::EffectKillCredit(SpellEffIndex effIndex)
diff --git a/src/server/game/Spells/SpellMgr.cpp b/src/server/game/Spells/SpellMgr.cpp
index a23fa54f255..c7944173817 100644
--- a/src/server/game/Spells/SpellMgr.cpp
+++ b/src/server/game/Spells/SpellMgr.cpp
@@ -976,10 +976,10 @@ bool SpellMgr::CanSpellTriggerProcOnEvent(SpellProcEntry const& procEntry, ProcE
     // check spell family name/flags (if set) for spells
     if (eventInfo.GetTypeMask() & (PERIODIC_PROC_FLAG_MASK | SPELL_PROC_FLAG_MASK | PROC_FLAG_DONE_TRAP_ACTIVATION))
     {
-        if (procEntry.spellFamilyName && (procEntry.spellFamilyName != eventInfo.GetSpellInfo()->SpellFamilyName))
+        if (procEntry.spellFamilyName && eventInfo.GetSpellInfo() && (procEntry.spellFamilyName != eventInfo.GetSpellInfo()->SpellFamilyName))
             return false;
 
-        if (procEntry.spellFamilyMask && !(procEntry.spellFamilyMask & eventInfo.GetSpellInfo()->SpellFamilyFlags))
+        if (procEntry.spellFamilyMask && eventInfo.GetSpellInfo() && !(procEntry.spellFamilyMask & eventInfo.GetSpellInfo()->SpellFamilyFlags))
             return false;
     }
 
diff --git a/src/server/game/Spells/SpellScript.cpp b/src/server/game/Spells/SpellScript.cpp
index 7132e0583e8..8ab3a72b47e 100644
--- a/src/server/game/Spells/SpellScript.cpp
+++ b/src/server/game/Spells/SpellScript.cpp
@@ -972,7 +972,7 @@ uint32 AuraScript::GetId() const
     return m_aura->GetId();
 }
 
-uint64 AuraScript::GetCasterGUID() const
+ObjectGuid AuraScript::GetCasterGUID() const
 {
     return m_aura->GetCasterGUID();
 }
diff --git a/src/server/game/Spells/SpellScript.h b/src/server/game/Spells/SpellScript.h
index 756644dbd1b..653ae9ab5e9 100644
--- a/src/server/game/Spells/SpellScript.h
+++ b/src/server/game/Spells/SpellScript.h
@@ -797,7 +797,7 @@ class AuraScript : public _SpellScript
         uint32 GetId() const;
 
         // returns guid of object which cast the aura (m_originalCaster of the Spell class)
-        uint64 GetCasterGUID() const;
+        ObjectGuid GetCasterGUID() const;
         // returns unit which cast the aura or NULL if not avalible (caster logged out for example)
         Unit* GetCaster() const;
         // returns object on which aura was cast, target for non-area auras, area aura source for area auras
diff --git a/src/server/game/Texts/CreatureTextMgr.cpp b/src/server/game/Texts/CreatureTextMgr.cpp
index 6da4f6fdade..1cff81c171d 100644
--- a/src/server/game/Texts/CreatureTextMgr.cpp
+++ b/src/server/game/Texts/CreatureTextMgr.cpp
@@ -24,7 +24,6 @@
 #include "GridNotifiers.h"
 #include "GridNotifiersImpl.h"
 #include "CreatureTextMgr.h"
-#include "Group.h"
 
 class CreatureTextBuilder
 {
@@ -91,7 +90,6 @@ void CreatureTextMgr::LoadCreatureTexts()
     }
 
     uint32 textCount = 0;
-    uint32 creatureCount = 0;
 
     do
     {
@@ -109,25 +107,26 @@ void CreatureTextMgr::LoadCreatureTexts()
         temp.duration        = fields[8].GetUInt32();
         temp.sound           = fields[9].GetUInt32();
         temp.BroadcastTextId = fields[10].GetUInt32();
+        temp.TextRange       = CreatureTextRange(fields[11].GetUInt8());
 
         if (temp.sound)
         {
             if (!sSoundEntriesStore.LookupEntry(temp.sound))
             {
-                TC_LOG_ERROR("sql.sql", "CreatureTextMgr:  Entry %u, Group %u in table `creature_text` has Sound %u but sound does not exist.", temp.entry, temp.group, temp.sound);
+                TC_LOG_ERROR("sql.sql", "CreatureTextMgr: Entry %u, Group %u in table `creature_text` has Sound %u but sound does not exist.", temp.entry, temp.group, temp.sound);
                 temp.sound = 0;
             }
         }
 
         if (!GetLanguageDescByID(temp.lang))
         {
-            TC_LOG_ERROR("sql.sql", "CreatureTextMgr:  Entry %u, Group %u in table `creature_text` using Language %u but Language does not exist.", temp.entry, temp.group, uint32(temp.lang));
+            TC_LOG_ERROR("sql.sql", "CreatureTextMgr: Entry %u, Group %u in table `creature_text` using Language %u but Language does not exist.", temp.entry, temp.group, uint32(temp.lang));
             temp.lang = LANG_UNIVERSAL;
         }
 
         if (temp.type >= MAX_CHAT_MSG_TYPE)
         {
-            TC_LOG_ERROR("sql.sql", "CreatureTextMgr:  Entry %u, Group %u in table `creature_text` has Type %u but this Chat Type does not exist.", temp.entry, temp.group, uint32(temp.type));
+            TC_LOG_ERROR("sql.sql", "CreatureTextMgr: Entry %u, Group %u in table `creature_text` has Type %u but this Chat Type does not exist.", temp.entry, temp.group, uint32(temp.type));
             temp.type = CHAT_MSG_SAY;
         }
 
@@ -135,7 +134,7 @@ void CreatureTextMgr::LoadCreatureTexts()
         {
             if (!sEmotesStore.LookupEntry(temp.emote))
             {
-                TC_LOG_ERROR("sql.sql", "CreatureTextMgr:  Entry %u, Group %u in table `creature_text` has Emote %u but emote does not exist.", temp.entry, temp.group, uint32(temp.emote));
+                TC_LOG_ERROR("sql.sql", "CreatureTextMgr: Entry %u, Group %u in table `creature_text` has Emote %u but emote does not exist.", temp.entry, temp.group, uint32(temp.emote));
                 temp.emote = EMOTE_ONESHOT_NONE;
             }
         }
@@ -149,9 +148,11 @@ void CreatureTextMgr::LoadCreatureTexts()
             }
         }
 
-        // entry not yet added, add empty TextHolder (list of groups)
-        if (mTextMap.find(temp.entry) == mTextMap.end())
-            ++creatureCount;
+        if (temp.TextRange > TEXT_RANGE_WORLD)
+        {
+            TC_LOG_ERROR("sql.sql", "CreatureTextMgr: Entry %u, Group %u, Id %u in table `creature_text` has incorrect TextRange %u.", temp.entry, temp.group, temp.id, temp.TextRange);
+            temp.TextRange = TEXT_RANGE_NORMAL;
+        }
 
         // add the text into our entry's group
         mTextMap[temp.entry][temp.group].push_back(temp);
@@ -160,7 +161,7 @@ void CreatureTextMgr::LoadCreatureTexts()
     }
     while (result->NextRow());
 
-    TC_LOG_INFO("server.loading", ">> Loaded %u creature texts for %u creatures in %u ms", textCount, creatureCount, GetMSTimeDiffToNow(oldMSTime));
+    TC_LOG_INFO("server.loading", ">> Loaded %u creature texts for " SZFMTD " creatures in %u ms", textCount, mTextMap.size(), GetMSTimeDiffToNow(oldMSTime));
 }
 
 void CreatureTextMgr::LoadCreatureTextLocales()
@@ -193,7 +194,7 @@ void CreatureTextMgr::LoadCreatureTextLocales()
 
 }
 
-uint32 CreatureTextMgr::SendChat(Creature* source, uint8 textGroup, WorldObject const* whisperTarget /*= NULL*/, ChatMsg msgType /*= CHAT_MSG_ADDON*/, Language language /*= LANG_ADDON*/, CreatureTextRange range /*= TEXT_RANGE_NORMAL*/, uint32 sound /*= 0*/, Team team /*= TEAM_OTHER*/, bool gmOnly /*= false*/, Player* srcPlr /*= NULL*/)
+uint32 CreatureTextMgr::SendChat(Creature* source, uint8 textGroup, WorldObject const* whisperTarget /*= nullptr*/, ChatMsg msgType /*= CHAT_MSG_ADDON*/, Language language /*= LANG_ADDON*/, CreatureTextRange range /*= TEXT_RANGE_NORMAL*/, uint32 sound /*= 0*/, Team team /*= TEAM_OTHER*/, bool gmOnly /*= false*/, Player* srcPlr /*= nullptr*/)
 {
     if (!source)
         return 0;
@@ -274,6 +275,9 @@ uint32 CreatureTextMgr::SendChat(Creature* source, uint8 textGroup, WorldObject
     Language finalLang = (language == LANG_ADDON) ? iter->lang : language;
     uint32 finalSound = sound ? sound : iter->sound;
 
+    if (range == TEXT_RANGE_NORMAL)
+        range = iter->TextRange;
+
     if (finalSound)
         SendSound(source, finalSound, finalType, whisperTarget, range, team, gmOnly);
 
@@ -335,6 +339,18 @@ void CreatureTextMgr::SendNonChatPacket(WorldObject* source, WorldPacket* data,
 {
     switch (msgType)
     {
+        case CHAT_MSG_MONSTER_PARTY:
+        {
+            if (!whisperTarget)
+                return;
+
+            if (Player const* whisperPlayer = whisperTarget->ToPlayer())
+            {
+                if (Group const* group = whisperPlayer->GetGroup())
+                    group->BroadcastWorker([data](Player* player) { player->SendDirectMessage(data); });
+            }
+            return;
+        }
         case CHAT_MSG_MONSTER_WHISPER:
         case CHAT_MSG_RAID_BOSS_WHISPER:
         {
@@ -348,18 +364,6 @@ void CreatureTextMgr::SendNonChatPacket(WorldObject* source, WorldPacket* data,
             }
             break;
         }
-        case CHAT_MSG_MONSTER_PARTY:
-            if (!whisperTarget)
-                return;
-
-            if (Player const* player = whisperTarget->ToPlayer())
-            {
-                if (Group* group = const_cast<Group*>(player->GetGroup()))
-                    for (GroupReference* itr = group->GetFirstMember(); itr != NULL; itr = itr->next())
-                        if (Player* member = itr->GetSource())
-                            member->GetSession()->SendPacket(data);
-            }
-            return;
         default:
             break;
     }
diff --git a/src/server/game/Texts/CreatureTextMgr.h b/src/server/game/Texts/CreatureTextMgr.h
index aef38a1923e..147228b51db 100644
--- a/src/server/game/Texts/CreatureTextMgr.h
+++ b/src/server/game/Texts/CreatureTextMgr.h
@@ -23,6 +23,16 @@
 #include "ObjectAccessor.h"
 #include "SharedDefines.h"
 #include "Opcodes.h"
+#include "Group.h"
+
+enum CreatureTextRange
+{
+    TEXT_RANGE_NORMAL   = 0,
+    TEXT_RANGE_AREA     = 1,
+    TEXT_RANGE_ZONE     = 2,
+    TEXT_RANGE_MAP      = 3,
+    TEXT_RANGE_WORLD    = 4
+};
 
 struct CreatureTextEntry
 {
@@ -37,15 +47,7 @@ struct CreatureTextEntry
     uint32 duration;
     uint32 sound;
     uint32 BroadcastTextId;
-};
-
-enum CreatureTextRange
-{
-    TEXT_RANGE_NORMAL   = 0,
-    TEXT_RANGE_AREA     = 1,
-    TEXT_RANGE_ZONE     = 2,
-    TEXT_RANGE_MAP      = 3,
-    TEXT_RANGE_WORLD    = 4
+    CreatureTextRange TextRange;
 };
 
 struct CreatureTextLocale
@@ -55,9 +57,7 @@ struct CreatureTextLocale
 
 struct CreatureTextId
 {
-    CreatureTextId(uint32 e, uint32 g, uint32 i) :  entry(e), textGroup(g), textId(i)
-    {
-    }
+    CreatureTextId(uint32 e, uint32 g, uint32 i) : entry(e), textGroup(g), textId(i) { }
 
     bool operator<(CreatureTextId const& right) const
     {
@@ -69,22 +69,22 @@ struct CreatureTextId
     uint32 textId;
 };
 
-typedef std::vector<CreatureTextEntry> CreatureTextGroup;              //texts in a group
-typedef std::unordered_map<uint8, CreatureTextGroup> CreatureTextHolder;    //groups for a creature by groupid
-typedef std::unordered_map<uint32, CreatureTextHolder> CreatureTextMap;     //all creatures by entry
+typedef std::vector<CreatureTextEntry> CreatureTextGroup;                   // texts in a group
+typedef std::unordered_map<uint8, CreatureTextGroup> CreatureTextHolder;    // groups for a creature by groupid
+typedef std::unordered_map<uint32, CreatureTextHolder> CreatureTextMap;     // all creatures by entry
 
 typedef std::map<CreatureTextId, CreatureTextLocale> LocaleCreatureTextMap;
 
 //used for handling non-repeatable random texts
 typedef std::vector<uint8> CreatureTextRepeatIds;
 typedef std::unordered_map<uint8, CreatureTextRepeatIds> CreatureTextRepeatGroup;
-typedef std::unordered_map<uint64, CreatureTextRepeatGroup> CreatureTextRepeatMap;//guid based
+typedef std::unordered_map<ObjectGuid, CreatureTextRepeatGroup> CreatureTextRepeatMap;//guid based
 
 class CreatureTextMgr
 {
     private:
-        CreatureTextMgr() { };
-        ~CreatureTextMgr() { };
+        CreatureTextMgr() { }
+        ~CreatureTextMgr() { }
 
     public:
         static CreatureTextMgr* instance()
@@ -101,11 +101,11 @@ class CreatureTextMgr
         void SendEmote(Unit* source, uint32 emote);
 
         //if sent, returns the 'duration' of the text else 0 if error
-        uint32 SendChat(Creature* source, uint8 textGroup, WorldObject const* whisperTarget = NULL, ChatMsg msgType = CHAT_MSG_ADDON, Language language = LANG_ADDON, CreatureTextRange range = TEXT_RANGE_NORMAL, uint32 sound = 0, Team team = TEAM_OTHER, bool gmOnly = false, Player* srcPlr = NULL);
+        uint32 SendChat(Creature* source, uint8 textGroup, WorldObject const* whisperTarget = nullptr, ChatMsg msgType = CHAT_MSG_ADDON, Language language = LANG_ADDON, CreatureTextRange range = TEXT_RANGE_NORMAL, uint32 sound = 0, Team team = TEAM_OTHER, bool gmOnly = false, Player* srcPlr = nullptr);
         bool TextExist(uint32 sourceEntry, uint8 textGroup);
         std::string GetLocalizedChatString(uint32 entry, uint8 gender, uint8 textGroup, uint32 id, LocaleConstant locale) const;
 
-        template<class Builder> void SendChatPacket(WorldObject* source, Builder const& builder, ChatMsg msgType, WorldObject const* whisperTarget = NULL, CreatureTextRange range = TEXT_RANGE_NORMAL, Team team = TEAM_OTHER, bool gmOnly = false) const;
+        template<class Builder> void SendChatPacket(WorldObject* source, Builder const& builder, ChatMsg msgType, WorldObject const* whisperTarget = nullptr, CreatureTextRange range = TEXT_RANGE_NORMAL, Team team = TEAM_OTHER, bool gmOnly = false) const;
 
     private:
         CreatureTextRepeatIds GetRepeatGroup(Creature* source, uint8 textGroup);
@@ -165,7 +165,7 @@ class CreatureTextLocalizer
             {
                 case CHAT_MSG_MONSTER_WHISPER:
                 case CHAT_MSG_RAID_BOSS_WHISPER:
-                    data.put<uint64>(whisperGUIDpos, player->GetGUID());
+                    data.put<uint64>(whisperGUIDpos, player->GetGUID().GetRawValue());
                     break;
                 default:
                     break;
@@ -181,7 +181,7 @@ class CreatureTextLocalizer
 };
 
 template<class Builder>
-void CreatureTextMgr::SendChatPacket(WorldObject* source, Builder const& builder, ChatMsg msgType, WorldObject const* whisperTarget /*= NULL*/, CreatureTextRange range /*= TEXT_RANGE_NORMAL*/, Team team /*= TEAM_OTHER*/, bool gmOnly /*= false*/) const
+void CreatureTextMgr::SendChatPacket(WorldObject* source, Builder const& builder, ChatMsg msgType, WorldObject const* whisperTarget /*= nullptr*/, CreatureTextRange range /*= TEXT_RANGE_NORMAL*/, Team team /*= TEAM_OTHER*/, bool gmOnly /*= false*/) const
 {
     if (!source)
         return;
@@ -190,6 +190,18 @@ void CreatureTextMgr::SendChatPacket(WorldObject* source, Builder const& builder
 
     switch (msgType)
     {
+        case CHAT_MSG_MONSTER_PARTY:
+        {
+            if (!whisperTarget)
+                return;
+
+            if (Player* whisperPlayer = const_cast<Player*>(whisperTarget->ToPlayer()))
+            {
+                if (Group* group = whisperPlayer->GetGroup())
+                    group->BroadcastWorker(localizer);
+            }
+            return;
+        }
         case CHAT_MSG_MONSTER_WHISPER:
         case CHAT_MSG_RAID_BOSS_WHISPER:
         {
@@ -240,7 +252,7 @@ void CreatureTextMgr::SendChatPacket(WorldObject* source, Builder const& builder
             SessionMap const& smap = sWorld->GetAllSessions();
             for (SessionMap::const_iterator iter = smap.begin(); iter != smap.end(); ++iter)
                 if (Player* player = iter->second->GetPlayer())
-                    if (player->GetSession()  && (!team || Team(player->GetTeam()) == team) && (!gmOnly || player->IsGameMaster()))
+                    if ((!team || Team(player->GetTeam()) == team) && (!gmOnly || player->IsGameMaster()))
                         localizer(player);
             return;
         }
diff --git a/src/server/game/Tickets/TicketMgr.cpp b/src/server/game/Tickets/TicketMgr.cpp
index 566033fb700..0c5f3e608d9 100644
--- a/src/server/game/Tickets/TicketMgr.cpp
+++ b/src/server/game/Tickets/TicketMgr.cpp
@@ -32,12 +32,12 @@ inline float GetAge(uint64 t) { return float(time(NULL) - t) / DAY; }
 
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 // GM ticket
-GmTicket::GmTicket() : _id(0), _playerGuid(0), _posX(0), _posY(0), _posZ(0), _mapId(0), _createTime(0), _lastModifiedTime(0),
-                       _closedBy(0), _assignedTo(0), _completed(false), _escalatedStatus(TICKET_UNASSIGNED), _viewed(false),
+GmTicket::GmTicket() : _id(0), _posX(0), _posY(0), _posZ(0), _mapId(0), _createTime(0), _lastModifiedTime(0),
+                       _completed(false), _escalatedStatus(TICKET_UNASSIGNED), _viewed(false),
                        _needResponse(false), _needMoreHelp(false) { }
 
 GmTicket::GmTicket(Player* player) : _posX(0), _posY(0), _posZ(0), _mapId(0), _createTime(time(NULL)), _lastModifiedTime(time(NULL)),
-                       _closedBy(0), _assignedTo(0), _completed(false), _escalatedStatus(TICKET_UNASSIGNED), _viewed(false),
+                       _completed(false), _escalatedStatus(TICKET_UNASSIGNED), _viewed(false),
                        _needResponse(false), _needMoreHelp(false)
 {
     _id = sTicketMgr->GenerateTicketId();
@@ -53,7 +53,7 @@ bool GmTicket::LoadFromDB(Field* fields)
     // ticketId, guid, name, message, createTime, mapId, posX, posY, posZ, lastModifiedTime, closedBy, assignedTo, comment, response, completed, escalated, viewed, haveTicket
     uint8 index = 0;
     _id                 = fields[  index].GetUInt32();
-    _playerGuid         = MAKE_NEW_GUID(fields[++index].GetUInt32(), 0, HIGHGUID_PLAYER);
+    _playerGuid         = ObjectGuid(HIGHGUID_PLAYER, fields[++index].GetUInt32());
     _playerName         = fields[++index].GetString();
     _message            = fields[++index].GetString();
     _createTime         = fields[++index].GetUInt32();
@@ -62,8 +62,8 @@ bool GmTicket::LoadFromDB(Field* fields)
     _posY               = fields[++index].GetFloat();
     _posZ               = fields[++index].GetFloat();
     _lastModifiedTime   = fields[++index].GetUInt32();
-    _closedBy           = fields[++index].GetInt32();
-    _assignedTo         = MAKE_NEW_GUID(fields[++index].GetUInt32(), 0, HIGHGUID_PLAYER);
+    _closedBy           = ObjectGuid(uint64(fields[++index].GetInt32()));
+    _assignedTo         = ObjectGuid(HIGHGUID_PLAYER, fields[++index].GetUInt32());
     _comment            = fields[++index].GetString();
     _response           = fields[++index].GetString();
     _completed          = fields[++index].GetBool();
@@ -80,7 +80,7 @@ void GmTicket::SaveToDB(SQLTransaction& trans) const
     uint8 index = 0;
     PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_REP_GM_TICKET);
     stmt->setUInt32(  index, _id);
-    stmt->setUInt32(++index, GUID_LOPART(_playerGuid));
+    stmt->setUInt32(++index, _playerGuid.GetCounter());
     stmt->setString(++index, _playerName);
     stmt->setString(++index, _message);
     stmt->setUInt32(++index, uint32(_createTime));
@@ -89,8 +89,8 @@ void GmTicket::SaveToDB(SQLTransaction& trans) const
     stmt->setFloat (++index, _posY);
     stmt->setFloat (++index, _posZ);
     stmt->setUInt32(++index, uint32(_lastModifiedTime));
-    stmt->setInt32 (++index, GUID_LOPART(_closedBy));
-    stmt->setUInt32(++index, GUID_LOPART(_assignedTo));
+    stmt->setInt32 (++index, int32(_closedBy.GetCounter()));
+    stmt->setUInt32(++index, _assignedTo.GetCounter());
     stmt->setString(++index, _comment);
     stmt->setString(++index, _response);
     stmt->setBool  (++index, _completed);
@@ -204,7 +204,7 @@ std::string GmTicket::FormatMessageString(ChatHandler& handler, const char* szCl
 
 void GmTicket::SetUnassigned()
 {
-    _assignedTo = 0;
+    _assignedTo.Clear();
     switch (_escalatedStatus)
     {
         case TICKET_ASSIGNED: _escalatedStatus = TICKET_UNASSIGNED; break;
@@ -354,7 +354,7 @@ void TicketMgr::AddTicket(GmTicket* ticket)
     ticket->SaveToDB(trans);
 }
 
-void TicketMgr::CloseTicket(uint32 ticketId, int64 source)
+void TicketMgr::CloseTicket(uint32 ticketId, ObjectGuid source)
 {
     if (GmTicket* ticket = GetTicket(ticketId))
     {
diff --git a/src/server/game/Tickets/TicketMgr.h b/src/server/game/Tickets/TicketMgr.h
index 8b1c8fbc0f9..d9b9b68d133 100644
--- a/src/server/game/Tickets/TicketMgr.h
+++ b/src/server/game/Tickets/TicketMgr.h
@@ -84,19 +84,19 @@ public:
     GmTicket(Player* player);
     ~GmTicket();
 
-    bool IsClosed() const { return _closedBy != 0; }
+    bool IsClosed() const { return !_closedBy.IsEmpty(); }
     bool IsCompleted() const { return _completed; }
-    bool IsFromPlayer(uint64 guid) const { return guid == _playerGuid; }
-    bool IsAssigned() const { return _assignedTo != 0; }
-    bool IsAssignedTo(uint64 guid) const { return guid == _assignedTo; }
-    bool IsAssignedNotTo(uint64 guid) const { return IsAssigned() && !IsAssignedTo(guid); }
+    bool IsFromPlayer(ObjectGuid guid) const { return guid == _playerGuid; }
+    bool IsAssigned() const { return !_assignedTo.IsEmpty(); }
+    bool IsAssignedTo(ObjectGuid guid) const { return guid == _assignedTo; }
+    bool IsAssignedNotTo(ObjectGuid guid) const { return IsAssigned() && !IsAssignedTo(guid); }
 
     uint32 GetId() const { return _id; }
     Player* GetPlayer() const { return ObjectAccessor::FindPlayer(_playerGuid); }
     std::string const& GetPlayerName() const { return _playerName; }
     std::string const& GetMessage() const { return _message; }
     Player* GetAssignedPlayer() const { return ObjectAccessor::FindPlayer(_assignedTo); }
-    uint64 GetAssignedToGUID() const { return _assignedTo; }
+    ObjectGuid GetAssignedToGUID() const { return _assignedTo; }
     std::string GetAssignedToName() const
     {
         std::string name;
@@ -110,7 +110,7 @@ public:
     GMTicketEscalationStatus GetEscalatedStatus() const { return _escalatedStatus; }
 
     void SetEscalatedStatus(GMTicketEscalationStatus escalatedStatus) { _escalatedStatus = escalatedStatus; }
-    void SetAssignedTo(uint64 guid, bool isAdmin)
+    void SetAssignedTo(ObjectGuid guid, bool isAdmin)
     {
         _assignedTo = guid;
         if (isAdmin && _escalatedStatus == TICKET_IN_ESCALATION_QUEUE)
@@ -118,7 +118,7 @@ public:
         else if (_escalatedStatus == TICKET_UNASSIGNED)
             _escalatedStatus = TICKET_ASSIGNED;
     }
-    void SetClosedBy(int64 value) { _closedBy = value; }
+    void SetClosedBy(ObjectGuid value) { _closedBy = value; }
     void SetCompleted() { _completed = true; }
     void SetMessage(std::string const& message)
     {
@@ -149,7 +149,7 @@ public:
 
 private:
     uint32 _id;
-    uint64 _playerGuid;
+    ObjectGuid _playerGuid;
     std::string _playerName;
     float _posX;
     float _posY;
@@ -158,8 +158,8 @@ private:
     std::string _message;
     uint64 _createTime;
     uint64 _lastModifiedTime;
-    int64 _closedBy; // 0 = Open, -1 = Console, playerGuid = player abandoned ticket, other = GM who closed it.
-    uint64 _assignedTo;
+    ObjectGuid _closedBy; // 0 = Open, -1 = Console, playerGuid = player abandoned ticket, other = GM who closed it.
+    ObjectGuid _assignedTo;
     std::string _comment;
     bool _completed;
     GMTicketEscalationStatus _escalatedStatus;
@@ -196,7 +196,7 @@ public:
         return NULL;
     }
 
-    GmTicket* GetTicketByPlayer(uint64 playerGuid)
+    GmTicket* GetTicketByPlayer(ObjectGuid playerGuid)
     {
         for (GmTicketList::const_iterator itr = _ticketList.begin(); itr != _ticketList.end(); ++itr)
             if (itr->second && itr->second->IsFromPlayer(playerGuid) && !itr->second->IsClosed())
@@ -215,7 +215,7 @@ public:
     }
 
     void AddTicket(GmTicket* ticket);
-    void CloseTicket(uint32 ticketId, int64 source = -1);
+    void CloseTicket(uint32 ticketId, ObjectGuid source);
     void RemoveTicket(uint32 ticketId);
 
     bool GetStatus() const { return _status; }
diff --git a/src/server/game/Tools/PlayerDump.cpp b/src/server/game/Tools/PlayerDump.cpp
index 3cde5a6d70f..e64bd4868bb 100644
--- a/src/server/game/Tools/PlayerDump.cpp
+++ b/src/server/game/Tools/PlayerDump.cpp
@@ -347,9 +347,7 @@ bool PlayerDumpWriter::DumpTable(std::string& dump, uint32 guid, char const*tabl
 
 bool PlayerDumpWriter::GetDump(uint32 guid, std::string &dump)
 {
-    dump = "";
-
-    dump += "IMPORTANT NOTE: THIS DUMPFILE IS MADE FOR USE WITH THE 'PDUMP' COMMAND ONLY - EITHER THROUGH INGAME CHAT OR ON CONSOLE!\n";
+    dump =  "IMPORTANT NOTE: THIS DUMPFILE IS MADE FOR USE WITH THE 'PDUMP' COMMAND ONLY - EITHER THROUGH INGAME CHAT OR ON CONSOLE!\n";
     dump += "IMPORTANT NOTE: DO NOT apply it directly - it will irreversibly DAMAGE and CORRUPT your database! You have been warned!\n\n";
 
     for (int i = 0; i < DUMP_TABLE_COUNT; ++i)
@@ -430,7 +428,7 @@ DumpReturn PlayerDumpReader::LoadDump(std::string const& file, uint32 account, s
 
     // normalize the name if specified and check if it exists
     if (!normalizePlayerName(name))
-        name = "";
+        name.clear();
 
     if (ObjectMgr::CheckPlayerName(name, true) == CHAR_NAME_SUCCESS)
     {
@@ -439,10 +437,10 @@ DumpReturn PlayerDumpReader::LoadDump(std::string const& file, uint32 account, s
         PreparedQueryResult result = CharacterDatabase.Query(stmt);
 
         if (result)
-            name = "";                                      // use the one from the dump
+            name.clear();                                       // use the one from the dump
     }
     else
-        name = "";
+        name.clear();
 
     // name encoded or empty
 
@@ -538,7 +536,7 @@ DumpReturn PlayerDumpReader::LoadDump(std::string const& file, uint32 account, s
                 playerClass = uint8(atol(getnth(line, 5).c_str()));
                 gender = uint8(atol(getnth(line, 6).c_str()));
                 level = uint8(atol(getnth(line, 7).c_str()));
-                if (name == "")
+                if (name.empty())
                 {
                     // check if the original name already exists
                     name = getnth(line, 3);
@@ -634,7 +632,7 @@ DumpReturn PlayerDumpReader::LoadDump(std::string const& file, uint32 account, s
                     snprintf(lastpetid, 20, "%s", currpetid);
                 if (strcmp(lastpetid, currpetid) != 0)
                 {
-                    snprintf(newpetid, 20, "%d", sObjectMgr->GeneratePetNumber());
+                    snprintf(newpetid, 20, "%u", sObjectMgr->GeneratePetNumber());
                     snprintf(lastpetid, 20, "%s", currpetid);
                 }
 
@@ -681,7 +679,7 @@ DumpReturn PlayerDumpReader::LoadDump(std::string const& file, uint32 account, s
     CharacterDatabase.CommitTransaction(trans);
 
     // in case of name conflict player has to rename at login anyway
-    sWorld->AddCharacterNameData(guid, name, gender, race, playerClass, level);
+    sWorld->AddCharacterNameData(ObjectGuid(HIGHGUID_PLAYER, guid), name, gender, race, playerClass, level);
 
     sObjectMgr->_hiItemGuid += items.size();
     sObjectMgr->_mailId     += mails.size();
diff --git a/src/server/game/Warden/WardenMac.cpp b/src/server/game/Warden/WardenMac.cpp
index 092bb19de07..f903e5324ac 100644
--- a/src/server/game/Warden/WardenMac.cpp
+++ b/src/server/game/Warden/WardenMac.cpp
@@ -244,7 +244,7 @@ void WardenMac::HandleData(ByteBuffer &buff)
     uint8 sha1Hash[20];
     buff.read(sha1Hash, 20);
 
-    if (memcmp(sha1Hash, sha1.GetDigest(), 20))
+    if (memcmp(sha1Hash, sha1.GetDigest(), 20) != 0)
     {
         TC_LOG_DEBUG("warden", "Handle data failed: SHA1 hash is wrong!");
         //found = true;
@@ -259,7 +259,7 @@ void WardenMac::HandleData(ByteBuffer &buff)
     uint8 theirsMD5Hash[16];
     buff.read(theirsMD5Hash, 16);
 
-    if (memcmp(ourMD5Hash, theirsMD5Hash, 16))
+    if (memcmp(ourMD5Hash, theirsMD5Hash, 16) != 0)
     {
         TC_LOG_DEBUG("warden", "Handle data failed: MD5 hash is wrong!");
         //found = true;
diff --git a/src/server/game/World/World.cpp b/src/server/game/World/World.cpp
index 7369e9285a2..163d76a18bd 100644
--- a/src/server/game/World/World.cpp
+++ b/src/server/game/World/World.cpp
@@ -2226,7 +2226,7 @@ namespace Trinity
     {
         public:
             typedef std::vector<WorldPacket*> WorldPacketList;
-            explicit WorldWorldTextBuilder(int32 textId, va_list* args = NULL) : i_textId(textId), i_args(args) { }
+            explicit WorldWorldTextBuilder(uint32 textId, va_list* args = NULL) : i_textId(textId), i_args(args) { }
             void operator()(WorldPacketList& data_list, LocaleConstant loc_idx)
             {
                 char const* text = sObjectMgr->GetTrinityString(i_textId, loc_idx);
@@ -2259,13 +2259,13 @@ namespace Trinity
                 }
             }
 
-            int32 i_textId;
+            uint32 i_textId;
             va_list* i_args;
     };
 }                                                           // namespace Trinity
 
 /// Send a System Message to all players (except self if mentioned)
-void World::SendWorldText(int32 string_id, ...)
+void World::SendWorldText(uint32 string_id, ...)
 {
     va_list ap;
     va_start(ap, string_id);
@@ -2284,7 +2284,7 @@ void World::SendWorldText(int32 string_id, ...)
 }
 
 /// Send a System Message to all GMs (except self if mentioned)
-void World::SendGMText(int32 string_id, ...)
+void World::SendGMText(uint32 string_id, ...)
 {
     va_list ap;
     va_start(ap, string_id);
@@ -3206,15 +3206,15 @@ void World::ProcessQueryCallbacks()
 }
 
 /**
-* @brief Loads several pieces of information on server startup with the low GUID
+* @brief Loads several pieces of information on server startup with the GUID
 * There is no further database query necessary.
 * These are a number of methods that work into the calling function.
 *
-* @param guid Requires a lowGUID to call
+* @param guid Requires a guid to call
 * @return Name, Gender, Race, Class and Level of player character
 * Example Usage:
 * @code
-*    CharacterNameData const* nameData = sWorld->GetCharacterNameData(lowGUID);
+*    CharacterNameData const* nameData = sWorld->GetCharacterNameData(GUID);
 *    if (!nameData)
 *        return;
 *
@@ -3242,7 +3242,7 @@ void World::LoadCharacterNameData()
     do
     {
         Field* fields = result->Fetch();
-        AddCharacterNameData(fields[0].GetUInt32(), fields[1].GetString(),
+        AddCharacterNameData(ObjectGuid(HIGHGUID_PLAYER, fields[0].GetUInt32()), fields[1].GetString(),
             fields[3].GetUInt8() /*gender*/, fields[2].GetUInt8() /*race*/, fields[4].GetUInt8() /*class*/, fields[5].GetUInt8() /*level*/);
         ++count;
     } while (result->NextRow());
@@ -3250,7 +3250,7 @@ void World::LoadCharacterNameData()
     TC_LOG_INFO("server.loading", "Loaded name data for %u characters", count);
 }
 
-void World::AddCharacterNameData(uint32 guid, std::string const& name, uint8 gender, uint8 race, uint8 playerClass, uint8 level)
+void World::AddCharacterNameData(ObjectGuid guid, std::string const& name, uint8 gender, uint8 race, uint8 playerClass, uint8 level)
 {
     CharacterNameData& data = _characterNameDataMap[guid];
     data.m_name = name;
@@ -3260,9 +3260,9 @@ void World::AddCharacterNameData(uint32 guid, std::string const& name, uint8 gen
     data.m_level = level;
 }
 
-void World::UpdateCharacterNameData(uint32 guid, std::string const& name, uint8 gender /*= GENDER_NONE*/, uint8 race /*= RACE_NONE*/)
+void World::UpdateCharacterNameData(ObjectGuid guid, std::string const& name, uint8 gender /*= GENDER_NONE*/, uint8 race /*= RACE_NONE*/)
 {
-    std::map<uint32, CharacterNameData>::iterator itr = _characterNameDataMap.find(guid);
+    std::map<ObjectGuid, CharacterNameData>::iterator itr = _characterNameDataMap.find(guid);
     if (itr == _characterNameDataMap.end())
         return;
 
@@ -3275,22 +3275,22 @@ void World::UpdateCharacterNameData(uint32 guid, std::string const& name, uint8
         itr->second.m_race = race;
 
     WorldPacket data(SMSG_INVALIDATE_PLAYER, 8);
-    data << MAKE_NEW_GUID(guid, 0, HIGHGUID_PLAYER);
+    data << guid;
     SendGlobalMessage(&data);
 }
 
-void World::UpdateCharacterNameDataLevel(uint32 guid, uint8 level)
+void World::UpdateCharacterNameDataLevel(ObjectGuid guid, uint8 level)
 {
-    std::map<uint32, CharacterNameData>::iterator itr = _characterNameDataMap.find(guid);
+    std::map<ObjectGuid, CharacterNameData>::iterator itr = _characterNameDataMap.find(guid);
     if (itr == _characterNameDataMap.end())
         return;
 
     itr->second.m_level = level;
 }
 
-CharacterNameData const* World::GetCharacterNameData(uint32 guid) const
+CharacterNameData const* World::GetCharacterNameData(ObjectGuid guid) const
 {
-    std::map<uint32, CharacterNameData>::const_iterator itr = _characterNameDataMap.find(guid);
+    std::map<ObjectGuid, CharacterNameData>::const_iterator itr = _characterNameDataMap.find(guid);
     if (itr != _characterNameDataMap.end())
         return &itr->second;
     else
diff --git a/src/server/game/World/World.h b/src/server/game/World/World.h
index b70ea28eb15..3bbc4e48eea 100644
--- a/src/server/game/World/World.h
+++ b/src/server/game/World/World.h
@@ -24,6 +24,7 @@
 #define __WORLD_H
 
 #include "Common.h"
+#include "ObjectGuid.h"
 #include "Timer.h"
 #include "SharedDefines.h"
 #include "QueryResult.h"
@@ -646,9 +647,9 @@ class World
         void SetInitialWorldSettings();
         void LoadConfigSettings(bool reload = false);
 
-        void SendWorldText(int32 string_id, ...);
+        void SendWorldText(uint32 string_id, ...);
         void SendGlobalText(const char* text, WorldSession* self);
-        void SendGMText(int32 string_id, ...);
+        void SendGMText(uint32 string_id, ...);
         void SendServerMessage(ServerMessageType type, const char *text = "", Player* player = NULL);
         void SendGlobalMessage(WorldPacket* packet, WorldSession* self = nullptr, uint32 team = 0);
         void SendGlobalGMMessage(WorldPacket* packet, WorldSession* self = nullptr, uint32 team = 0);
@@ -756,12 +757,12 @@ class World
 
         void UpdateAreaDependentAuras();
 
-        CharacterNameData const* GetCharacterNameData(uint32 guid) const;
-        void AddCharacterNameData(uint32 guid, std::string const& name, uint8 gender, uint8 race, uint8 playerClass, uint8 level);
-        void UpdateCharacterNameData(uint32 guid, std::string const& name, uint8 gender = GENDER_NONE, uint8 race = RACE_NONE);
-        void UpdateCharacterNameDataLevel(uint32 guid, uint8 level);
-        void DeleteCharacterNameData(uint32 guid) { _characterNameDataMap.erase(guid); }
-        bool HasCharacterNameData(uint32 guid) { return _characterNameDataMap.find(guid) != _characterNameDataMap.end(); }
+        CharacterNameData const* GetCharacterNameData(ObjectGuid guid) const;
+        void AddCharacterNameData(ObjectGuid guid, std::string const& name, uint8 gender, uint8 race, uint8 playerClass, uint8 level);
+        void UpdateCharacterNameData(ObjectGuid guid, std::string const& name, uint8 gender = GENDER_NONE, uint8 race = RACE_NONE);
+        void UpdateCharacterNameDataLevel(ObjectGuid guid, uint8 level);
+        void DeleteCharacterNameData(ObjectGuid guid) { _characterNameDataMap.erase(guid); }
+        bool HasCharacterNameData(ObjectGuid guid) { return _characterNameDataMap.find(guid) != _characterNameDataMap.end(); }
 
         uint32 GetCleaningFlags() const { return m_CleaningFlags; }
         void   SetCleaningFlags(uint32 flags) { m_CleaningFlags = flags; }
@@ -869,7 +870,7 @@ class World
         typedef std::map<uint8, uint8> AutobroadcastsWeightMap;
         AutobroadcastsWeightMap m_AutobroadcastsWeights;
 
-        std::map<uint32, CharacterNameData> _characterNameDataMap;
+        std::map<ObjectGuid, CharacterNameData> _characterNameDataMap;
         void LoadCharacterNameData();
 
         void ProcessQueryCallbacks();
diff --git a/src/server/scripts/Commands/cs_account.cpp b/src/server/scripts/Commands/cs_account.cpp
index bef9ae9532e..e398e54ad19 100644
--- a/src/server/scripts/Commands/cs_account.cpp
+++ b/src/server/scripts/Commands/cs_account.cpp
@@ -774,7 +774,7 @@ public:
         if (handler->HasLowerSecurityAccount(NULL, targetAccountId, true))
             return false;
 
-        if (strcmp(password, passwordConfirmation))
+        if (strcmp(password, passwordConfirmation) != 0)
         {
             handler->SendSysMessage(LANG_NEW_PASSWORDS_NOT_MATCH);
             handler->SetSentErrorMessage(true);
diff --git a/src/server/scripts/Commands/cs_arena.cpp b/src/server/scripts/Commands/cs_arena.cpp
index 5658701bd54..4db7c088d35 100644
--- a/src/server/scripts/Commands/cs_arena.cpp
+++ b/src/server/scripts/Commands/cs_arena.cpp
@@ -103,7 +103,7 @@ public:
             }
 
             sArenaTeamMgr->AddArenaTeam(arena);
-            handler->PSendSysMessage(LANG_ARENA_CREATE, arena->GetName().c_str(), arena->GetId(), arena->GetType(), arena->GetCaptain());
+            handler->PSendSysMessage(LANG_ARENA_CREATE, arena->GetName().c_str(), arena->GetId(), arena->GetType(), arena->GetCaptain().GetCounter());
         }
         else
         {
@@ -232,7 +232,7 @@ public:
             return false;
 
         Player* target;
-        uint64 targetGuid;
+        ObjectGuid targetGuid;
         if (!handler->extractPlayerTarget(nameStr, &target, &targetGuid))
             return false;
 
@@ -275,7 +275,7 @@ public:
 
         arena->SetCaptain(targetGuid);
 
-        CharacterNameData const* oldCaptainNameData = sWorld->GetCharacterNameData(GUID_LOPART(arena->GetCaptain()));
+        CharacterNameData const* oldCaptainNameData = sWorld->GetCharacterNameData(arena->GetCaptain());
         if (!oldCaptainNameData)
         {
             handler->SetSentErrorMessage(true);
@@ -313,7 +313,7 @@ public:
 
         handler->PSendSysMessage(LANG_ARENA_INFO_HEADER, arena->GetName().c_str(), arena->GetId(), arena->GetRating(), arena->GetType(), arena->GetType());
         for (ArenaTeam::MemberList::iterator itr = arena->m_membersBegin(); itr != arena->m_membersEnd(); ++itr)
-            handler->PSendSysMessage(LANG_ARENA_INFO_MEMBERS, itr->Name.c_str(), GUID_LOPART(itr->Guid), itr->PersonalRating, (arena->GetCaptain() == itr->Guid ? "- Captain" : ""));
+            handler->PSendSysMessage(LANG_ARENA_INFO_MEMBERS, itr->Name.c_str(), itr->Guid.GetCounter(), itr->PersonalRating, (arena->GetCaptain() == itr->Guid ? "- Captain" : ""));
 
         return true;
     }
diff --git a/src/server/scripts/Commands/cs_ban.cpp b/src/server/scripts/Commands/cs_ban.cpp
index 880cf1eac1f..e11ee0008d2 100644
--- a/src/server/scripts/Commands/cs_ban.cpp
+++ b/src/server/scripts/Commands/cs_ban.cpp
@@ -340,7 +340,7 @@ public:
             bool permanent = (fields[1].GetUInt32() == uint32(0));
             std::string banTime = permanent ? handler->GetTrinityString(LANG_BANINFO_INFINITE) : secsToTimeString(fields[1].GetUInt32(), true);
             handler->PSendSysMessage(LANG_BANINFO_HISTORYENTRY,
-                fields[0].GetCString(), banTime.c_str(), active ? handler->GetTrinityString(LANG_YES) : handler->GetTrinityString(LANG_NO), fields[4].GetCString(), fields[5].GetCString());
+                TimeToTimestampStr(fields[0].GetUInt32()).c_str(), banTime.c_str(), active ? handler->GetTrinityString(LANG_YES) : handler->GetTrinityString(LANG_NO), fields[4].GetCString(), fields[5].GetCString());
         }
         while (result->NextRow());
 
diff --git a/src/server/scripts/Commands/cs_character.cpp b/src/server/scripts/Commands/cs_character.cpp
index 0c6d495a360..8254d08558a 100644
--- a/src/server/scripts/Commands/cs_character.cpp
+++ b/src/server/scripts/Commands/cs_character.cpp
@@ -79,7 +79,7 @@ public:
     // Stores informations about a deleted character
     struct DeletedInfo
     {
-        uint32      lowGuid;                            ///< the low GUID from the character
+        ObjectGuid  guid;                               ///< the GUID from the character
         std::string name;                               ///< the character name
         uint32      accountId;                          ///< the account id
         std::string accountName;                        ///< the account name
@@ -133,7 +133,7 @@ public:
 
                 DeletedInfo info;
 
-                info.lowGuid    = fields[0].GetUInt32();
+                info.guid       = ObjectGuid(HIGHGUID_PLAYER, fields[0].GetUInt32());
                 info.name       = fields[1].GetString();
                 info.accountId  = fields[2].GetUInt32();
 
@@ -173,11 +173,11 @@ public:
 
             if (!handler->GetSession())
                 handler->PSendSysMessage(LANG_CHARACTER_DELETED_LIST_LINE_CONSOLE,
-                    itr->lowGuid, itr->name.c_str(), itr->accountName.empty() ? "<Not existed>" : itr->accountName.c_str(),
+                    itr->guid.GetCounter(), itr->name.c_str(), itr->accountName.empty() ? "<Not existed>" : itr->accountName.c_str(),
                     itr->accountId, dateStr.c_str());
             else
                 handler->PSendSysMessage(LANG_CHARACTER_DELETED_LIST_LINE_CHAT,
-                    itr->lowGuid, itr->name.c_str(), itr->accountName.empty() ? "<Not existed>" : itr->accountName.c_str(),
+                    itr->guid.GetCounter(), itr->name.c_str(), itr->accountName.empty() ? "<Not existed>" : itr->accountName.c_str(),
                     itr->accountId, dateStr.c_str());
         }
 
@@ -199,7 +199,7 @@ public:
     {
         if (delInfo.accountName.empty())                    // account not exist
         {
-            handler->PSendSysMessage(LANG_CHARACTER_DELETED_SKIP_ACCOUNT, delInfo.name.c_str(), delInfo.lowGuid, delInfo.accountId);
+            handler->PSendSysMessage(LANG_CHARACTER_DELETED_SKIP_ACCOUNT, delInfo.name.c_str(), delInfo.guid.GetCounter(), delInfo.accountId);
             return;
         }
 
@@ -207,29 +207,29 @@ public:
         uint32 charcount = AccountMgr::GetCharactersCount(delInfo.accountId);
         if (charcount >= 10)
         {
-            handler->PSendSysMessage(LANG_CHARACTER_DELETED_SKIP_FULL, delInfo.name.c_str(), delInfo.lowGuid, delInfo.accountId);
+            handler->PSendSysMessage(LANG_CHARACTER_DELETED_SKIP_FULL, delInfo.name.c_str(), delInfo.guid.GetCounter(), delInfo.accountId);
             return;
         }
 
         if (sObjectMgr->GetPlayerGUIDByName(delInfo.name))
         {
-            handler->PSendSysMessage(LANG_CHARACTER_DELETED_SKIP_NAME, delInfo.name.c_str(), delInfo.lowGuid, delInfo.accountId);
+            handler->PSendSysMessage(LANG_CHARACTER_DELETED_SKIP_NAME, delInfo.name.c_str(), delInfo.guid.GetCounter(), delInfo.accountId);
             return;
         }
 
         PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_UPD_RESTORE_DELETE_INFO);
         stmt->setString(0, delInfo.name);
         stmt->setUInt32(1, delInfo.accountId);
-        stmt->setUInt32(2, delInfo.lowGuid);
+        stmt->setUInt32(2, delInfo.guid.GetCounter());
         CharacterDatabase.Execute(stmt);
 
         stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_CHARACTER_NAME_DATA);
-        stmt->setUInt32(0, delInfo.lowGuid);
+        stmt->setUInt32(0, delInfo.guid.GetCounter());
         if (PreparedQueryResult result = CharacterDatabase.Query(stmt))
-            sWorld->AddCharacterNameData(delInfo.lowGuid, delInfo.name, (*result)[2].GetUInt8(), (*result)[0].GetUInt8(), (*result)[1].GetUInt8(), (*result)[3].GetUInt8());
+            sWorld->AddCharacterNameData(delInfo.guid, delInfo.name, (*result)[2].GetUInt8(), (*result)[0].GetUInt8(), (*result)[1].GetUInt8(), (*result)[3].GetUInt8());
     }
 
-    static void HandleCharacterLevel(Player* player, uint64 playerGuid, uint32 oldLevel, uint32 newLevel, ChatHandler* handler)
+    static void HandleCharacterLevel(Player* player, ObjectGuid playerGuid, uint32 oldLevel, uint32 newLevel, ChatHandler* handler)
     {
         if (player)
         {
@@ -252,7 +252,7 @@ public:
             // Update level and reset XP, everything else will be updated at login
             PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_UPD_LEVEL);
             stmt->setUInt8(0, uint8(newLevel));
-            stmt->setUInt32(1, GUID_LOPART(playerGuid));
+            stmt->setUInt32(1, playerGuid.GetCounter());
             CharacterDatabase.Execute(stmt);
         }
     }
@@ -303,7 +303,7 @@ public:
     static bool HandleCharacterRenameCommand(ChatHandler* handler, char const* args)
     {
         Player* target;
-        uint64 targetGuid;
+        ObjectGuid targetGuid;
         std::string targetName;
         if (!handler->extractPlayerTarget((char*)args, &target, &targetGuid, &targetName))
             return false;
@@ -318,7 +318,7 @@ public:
             if (target)
             {
                 // check online security
-                if (handler->HasLowerSecurity(target, 0))
+                if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
                     return false;
 
                 playerOldName = target->GetName();
@@ -368,7 +368,7 @@ public:
 
             // Remove declined name from db
             stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_DECLINED_NAME);
-            stmt->setUInt32(0, targetGuid);
+            stmt->setUInt32(0, targetGuid.GetCounter());
             CharacterDatabase.Execute(stmt);
 
             if (target)
@@ -382,7 +382,7 @@ public:
             {
                 stmt = CharacterDatabase.GetPreparedStatement(CHAR_UPD_NAME_BY_GUID);
                 stmt->setString(0, newName);
-                stmt->setUInt32(1, GUID_LOPART(targetGuid));
+                stmt->setUInt32(1, targetGuid.GetCounter());
                 CharacterDatabase.Execute(stmt);
             }
 
@@ -396,14 +396,14 @@ public:
                     sLog->outCommand(session->GetAccountId(), "GM %s (Account: %u) forced rename %s to player %s (Account: %u)", player->GetName().c_str(), session->GetAccountId(), newName.c_str(), playerOldName.c_str(), sObjectMgr->GetPlayerAccountIdByGUID(targetGuid));
             }
             else
-                sLog->outCommand(0, "CONSOLE forced rename '%s' to '%s' (GUID: %u)", playerOldName.c_str(), newName.c_str(), GUID_LOPART(targetGuid));
+                sLog->outCommand(0, "CONSOLE forced rename '%s' to '%s' (%s)", playerOldName.c_str(), newName.c_str(), targetGuid.ToString().c_str());
         }
         else
         {
             if (target)
             {
                 // check online security
-                if (handler->HasLowerSecurity(target, 0))
+                if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
                     return false;
 
                 handler->PSendSysMessage(LANG_RENAME_PLAYER, handler->GetNameLink(target).c_str());
@@ -416,11 +416,11 @@ public:
                     return false;
 
                 std::string oldNameLink = handler->playerLink(targetName);
-                handler->PSendSysMessage(LANG_RENAME_PLAYER_GUID, oldNameLink.c_str(), GUID_LOPART(targetGuid));
+                handler->PSendSysMessage(LANG_RENAME_PLAYER_GUID, oldNameLink.c_str(), targetGuid.GetCounter());
 
                 PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_UPD_ADD_AT_LOGIN_FLAG);
                 stmt->setUInt16(0, uint16(AT_LOGIN_RENAME));
-                stmt->setUInt32(1, GUID_LOPART(targetGuid));
+                stmt->setUInt32(1, targetGuid.GetCounter());
                 CharacterDatabase.Execute(stmt);
             }
         }
@@ -444,7 +444,7 @@ public:
         }
 
         Player* target;
-        uint64 targetGuid;
+        ObjectGuid targetGuid;
         std::string targetName;
         if (!handler->extractPlayerTarget(nameStr, &target, &targetGuid, &targetName))
             return false;
@@ -472,7 +472,7 @@ public:
     static bool HandleCharacterCustomizeCommand(ChatHandler* handler, char const* args)
     {
         Player* target;
-        uint64 targetGuid;
+        ObjectGuid targetGuid;
         std::string targetName;
         if (!handler->extractPlayerTarget((char*)args, &target, &targetGuid, &targetName))
             return false;
@@ -488,8 +488,8 @@ public:
         else
         {
             std::string oldNameLink = handler->playerLink(targetName);
-            stmt->setUInt32(1, GUID_LOPART(targetGuid));
-            handler->PSendSysMessage(LANG_CUSTOMIZE_PLAYER_GUID, oldNameLink.c_str(), GUID_LOPART(targetGuid));
+            stmt->setUInt32(1, targetGuid.GetCounter());
+            handler->PSendSysMessage(LANG_CUSTOMIZE_PLAYER_GUID, oldNameLink.c_str(), targetGuid.GetCounter());
         }
         CharacterDatabase.Execute(stmt);
 
@@ -499,7 +499,7 @@ public:
     static bool HandleCharacterChangeFactionCommand(ChatHandler* handler, char const* args)
     {
         Player* target;
-        uint64 targetGuid;
+        ObjectGuid targetGuid;
         std::string targetName;
 
         if (!handler->extractPlayerTarget((char*)args, &target, &targetGuid, &targetName))
@@ -516,8 +516,8 @@ public:
         else
         {
             std::string oldNameLink = handler->playerLink(targetName);
-            handler->PSendSysMessage(LANG_CUSTOMIZE_PLAYER_GUID, oldNameLink.c_str(), GUID_LOPART(targetGuid));
-            stmt->setUInt32(1, GUID_LOPART(targetGuid));
+            handler->PSendSysMessage(LANG_CUSTOMIZE_PLAYER_GUID, oldNameLink.c_str(), targetGuid.GetCounter());
+            stmt->setUInt32(1, targetGuid.GetCounter());
         }
         CharacterDatabase.Execute(stmt);
 
@@ -527,7 +527,7 @@ public:
     static bool HandleCharacterChangeRaceCommand(ChatHandler* handler, char const* args)
     {
         Player* target;
-        uint64 targetGuid;
+        ObjectGuid targetGuid;
         std::string targetName;
         if (!handler->extractPlayerTarget((char*)args, &target, &targetGuid, &targetName))
             return false;
@@ -545,8 +545,8 @@ public:
         {
             std::string oldNameLink = handler->playerLink(targetName);
             /// @todo add text into database
-            handler->PSendSysMessage(LANG_CUSTOMIZE_PLAYER_GUID, oldNameLink.c_str(), GUID_LOPART(targetGuid));
-            stmt->setUInt32(1, GUID_LOPART(targetGuid));
+            handler->PSendSysMessage(LANG_CUSTOMIZE_PLAYER_GUID, oldNameLink.c_str(), targetGuid.GetCounter());
+            stmt->setUInt32(1, targetGuid.GetCounter());
         }
         CharacterDatabase.Execute(stmt);
 
@@ -721,7 +721,7 @@ public:
 
         // Call the appropriate function to delete them (current account for deleted characters is 0)
         for (DeletedInfoList::const_iterator itr = foundList.begin(); itr != foundList.end(); ++itr)
-            Player::DeleteFromDB(itr->lowGuid, 0, false, true);
+            Player::DeleteFromDB(itr->guid, 0, false, true);
 
         return true;
     }
@@ -773,7 +773,7 @@ public:
         if (!normalizePlayerName(characterName))
             return false;
 
-        uint64 characterGuid;
+        ObjectGuid characterGuid;
         uint32 accountId;
 
         Player* player = sObjectAccessor->FindPlayerByName(characterName);
@@ -799,7 +799,7 @@ public:
         AccountMgr::GetName(accountId, accountName);
 
         Player::DeleteFromDB(characterGuid, accountId, true, true);
-        handler->PSendSysMessage(LANG_CHARACTER_DELETED, characterName.c_str(), GUID_LOPART(characterGuid), accountName.c_str(), accountId);
+        handler->PSendSysMessage(LANG_CHARACTER_DELETED, characterName.c_str(), characterGuid.GetCounter(), accountName.c_str(), accountId);
 
         return true;
     }
@@ -818,7 +818,7 @@ public:
         }
 
         Player* target;
-        uint64 targetGuid;
+        ObjectGuid targetGuid;
         std::string targetName;
         if (!handler->extractPlayerTarget(nameStr, &target, &targetGuid, &targetName))
             return false;
@@ -921,7 +921,7 @@ public:
                 return false;
             }
 
-            if (sObjectMgr->GetPlayerAccountIdByGUID(guid))
+            if (sObjectMgr->GetPlayerAccountIdByGUID(ObjectGuid(HIGHGUID_PLAYER, guid)))
             {
                 handler->PSendSysMessage(LANG_CHARACTER_GUID_IN_USE, guid);
                 handler->SetSentErrorMessage(true);
@@ -966,10 +966,10 @@ public:
         if (!fileStr || !playerStr)
             return false;
 
-        uint64 guid;
+        ObjectGuid guid;
         // character name can't start from number
         if (isNumeric(playerStr))
-            guid = MAKE_NEW_GUID(atoi(playerStr), 0, HIGHGUID_PLAYER);
+            guid = ObjectGuid(HIGHGUID_PLAYER, uint32(atoi(playerStr)));
         else
         {
             std::string name = handler->extractPlayerNameFromLink(playerStr);
diff --git a/src/server/scripts/Commands/cs_cheat.cpp b/src/server/scripts/Commands/cs_cheat.cpp
index 1fe7c6adf5b..54db5c2af51 100644
--- a/src/server/scripts/Commands/cs_cheat.cpp
+++ b/src/server/scripts/Commands/cs_cheat.cpp
@@ -228,7 +228,7 @@ public:
 
         if (!chr)
             chr = handler->GetSession()->GetPlayer();
-        else if (handler->HasLowerSecurity(chr, 0)) // check online security
+        else if (handler->HasLowerSecurity(chr, ObjectGuid::Empty)) // check online security
             return false;
 
         if (argstr == "on")
diff --git a/src/server/scripts/Commands/cs_debug.cpp b/src/server/scripts/Commands/cs_debug.cpp
index 4ff7efd2f0a..4b555fcf625 100644
--- a/src/server/scripts/Commands/cs_debug.cpp
+++ b/src/server/scripts/Commands/cs_debug.cpp
@@ -240,7 +240,7 @@ public:
             return false;
 
         SellResult msg = SellResult(atoi(args));
-        handler->GetSession()->GetPlayer()->SendSellError(msg, 0, 0);
+        handler->GetSession()->GetPlayer()->SendSellError(msg, nullptr, ObjectGuid::Empty);
         return true;
     }
 
@@ -250,7 +250,7 @@ public:
             return false;
 
         BuyResult msg = BuyResult(atoi(args));
-        handler->GetSession()->GetPlayer()->SendBuyError(msg, 0, 0, 0);
+        handler->GetSession()->GetPlayer()->SendBuyError(msg, nullptr, 0, 0);
         return true;
     }
 
@@ -321,7 +321,7 @@ public:
             std::string type;
             parsedStream >> type;
 
-            if (type == "")
+            if (type.empty())
                 break;
 
             if (type == "uint8")
@@ -362,11 +362,11 @@ public:
             }
             else if (type == "appitsguid")
             {
-                data.append(unit->GetPackGUID());
+                data << unit->GetPackGUID();
             }
             else if (type == "appmyguid")
             {
-                data.append(player->GetPackGUID());
+                data << player->GetPackGUID();
             }
             else if (type == "appgoguid")
             {
@@ -378,7 +378,7 @@ public:
                     ifs.close();
                     return false;
                 }
-                data.append(obj->GetPackGUID());
+                data << obj->GetPackGUID();
             }
             else if (type == "goguid")
             {
@@ -559,10 +559,10 @@ public:
                         for (uint8 j = 0; j < bag->GetBagSize(); ++j)
                             if (Item* item2 = bag->GetItemByPos(j))
                                 if (item2->GetState() == state)
-                                    handler->PSendSysMessage("bag: 255 slot: %d guid: %d owner: %d", item2->GetSlot(), item2->GetGUIDLow(), GUID_LOPART(item2->GetOwnerGUID()));
+                                    handler->PSendSysMessage("bag: 255 slot: %d guid: %d owner: %d", item2->GetSlot(), item2->GetGUIDLow(), item2->GetOwnerGUID().GetCounter());
                     }
                     else if (item->GetState() == state)
-                        handler->PSendSysMessage("bag: 255 slot: %d guid: %d owner: %d", item->GetSlot(), item->GetGUIDLow(), GUID_LOPART(item->GetOwnerGUID()));
+                        handler->PSendSysMessage("bag: 255 slot: %d guid: %d owner: %d", item->GetSlot(), item->GetGUIDLow(), item->GetOwnerGUID().GetCounter());
                 }
             }
         }
@@ -624,7 +624,7 @@ public:
 
                 if (item->GetOwnerGUID() != player->GetGUID())
                 {
-                    handler->PSendSysMessage("The item with slot %d and itemguid %d does have non-matching owner guid (%d) and player guid (%d) !", item->GetSlot(), item->GetGUIDLow(), GUID_LOPART(item->GetOwnerGUID()), player->GetGUIDLow());
+                    handler->PSendSysMessage("The item with slot %d and itemguid %d does have non-matching owner guid (%d) and player guid (%d) !", item->GetSlot(), item->GetGUIDLow(), item->GetOwnerGUID().GetCounter(), player->GetGUIDLow());
                     error = true;
                     continue;
                 }
@@ -684,7 +684,7 @@ public:
 
                         if (item2->GetOwnerGUID() != player->GetGUID())
                         {
-                            handler->PSendSysMessage("The item in bag %d at slot %d and with itemguid %d, the owner's guid (%d) and the player's guid (%d) don't match!", bag->GetSlot(), item2->GetSlot(), item2->GetGUIDLow(), GUID_LOPART(item2->GetOwnerGUID()), player->GetGUIDLow());
+                            handler->PSendSysMessage("The item in bag %d at slot %d and with itemguid %d, the owner's guid (%d) and the player's guid (%d) don't match!", bag->GetSlot(), item2->GetSlot(), item2->GetGUIDLow(), item2->GetOwnerGUID().GetCounter(), player->GetGUIDLow());
                             error = true;
                             continue;
                         }
@@ -746,7 +746,7 @@ public:
 
                 if (item->GetOwnerGUID() != player->GetGUID())
                 {
-                    handler->PSendSysMessage("queue(%zu): For the item with guid %d, the owner's guid (%d) and the player's guid (%d) don't match!", i, item->GetGUIDLow(), GUID_LOPART(item->GetOwnerGUID()), player->GetGUIDLow());
+                    handler->PSendSysMessage("queue(%zu): For the item with guid %d, the owner's guid (%d) and the player's guid (%d) don't match!", i, item->GetGUIDLow(), item->GetOwnerGUID().GetCounter(), player->GetGUIDLow());
                     error = true;
                     continue;
                 }
@@ -990,7 +990,7 @@ public:
         uint32 guid = (uint32)atoi(e);
         uint32 index = (uint32)atoi(f);
 
-        Item* i = handler->GetSession()->GetPlayer()->GetItemByGuid(MAKE_NEW_GUID(guid, 0, HIGHGUID_ITEM));
+        Item* i = handler->GetSession()->GetPlayer()->GetItemByGuid(ObjectGuid(HIGHGUID_ITEM, 0, guid));
 
         if (!i)
             return false;
@@ -1021,7 +1021,7 @@ public:
         uint32 index = (uint32)atoi(f);
         uint32 value = (uint32)atoi(g);
 
-        Item* i = handler->GetSession()->GetPlayer()->GetItemByGuid(MAKE_NEW_GUID(guid, 0, HIGHGUID_ITEM));
+        Item* i = handler->GetSession()->GetPlayer()->GetItemByGuid(ObjectGuid(HIGHGUID_ITEM, 0, guid));
 
         if (!i)
             return false;
@@ -1045,7 +1045,7 @@ public:
 
         uint32 guid = (uint32)atoi(e);
 
-        Item* i = handler->GetSession()->GetPlayer()->GetItemByGuid(MAKE_NEW_GUID(guid, 0, HIGHGUID_ITEM));
+        Item* i = handler->GetSession()->GetPlayer()->GetItemByGuid(ObjectGuid(HIGHGUID_ITEM, guid));
 
         if (!i)
             return false;
@@ -1124,12 +1124,12 @@ public:
             return false;
         }
 
-        uint64 guid = target->GetGUID();
+        ObjectGuid guid = target->GetGUID();
 
         uint32 field = (uint32)atoi(x);
         if (field >= target->GetValuesCount())
         {
-            handler->PSendSysMessage(LANG_TOO_BIG_INDEX, field, GUID_LOPART(guid), target->GetValuesCount());
+            handler->PSendSysMessage(LANG_TOO_BIG_INDEX, field, guid.GetCounter(), target->GetValuesCount());
             return false;
         }
 
@@ -1141,13 +1141,13 @@ public:
         {
             uint32 value = (uint32)atoi(y);
             target->SetUInt32Value(field, value);
-            handler->PSendSysMessage(LANG_SET_UINT_FIELD, GUID_LOPART(guid), field, value);
+            handler->PSendSysMessage(LANG_SET_UINT_FIELD, guid.GetCounter(), field, value);
         }
         else
         {
             float value = (float)atof(y);
             target->SetFloatValue(field, value);
-            handler->PSendSysMessage(LANG_SET_FLOAT_FIELD, GUID_LOPART(guid), field, value);
+            handler->PSendSysMessage(LANG_SET_FLOAT_FIELD, guid.GetCounter(), field, value);
         }
 
         return true;
@@ -1172,12 +1172,12 @@ public:
             return false;
         }
 
-        uint64 guid = target->GetGUID();
+        ObjectGuid guid = target->GetGUID();
 
         uint32 opcode = (uint32)atoi(x);
         if (opcode >= target->GetValuesCount())
         {
-            handler->PSendSysMessage(LANG_TOO_BIG_INDEX, opcode, GUID_LOPART(guid), target->GetValuesCount());
+            handler->PSendSysMessage(LANG_TOO_BIG_INDEX, opcode, guid.GetCounter(), target->GetValuesCount());
             return false;
         }
 
@@ -1188,12 +1188,12 @@ public:
         if (isInt32)
         {
             uint32 value = target->GetUInt32Value(opcode);
-            handler->PSendSysMessage(LANG_GET_UINT_FIELD, GUID_LOPART(guid), opcode, value);
+            handler->PSendSysMessage(LANG_GET_UINT_FIELD, guid.GetCounter(), opcode, value);
         }
         else
         {
             float value = target->GetFloatValue(opcode);
-            handler->PSendSysMessage(LANG_GET_FLOAT_FIELD, GUID_LOPART(guid), opcode, value);
+            handler->PSendSysMessage(LANG_GET_FLOAT_FIELD, guid.GetCounter(), opcode, value);
         }
 
         return true;
diff --git a/src/server/scripts/Commands/cs_gm.cpp b/src/server/scripts/Commands/cs_gm.cpp
index d12ba9ad9b4..27ec4835ce6 100644
--- a/src/server/scripts/Commands/cs_gm.cpp
+++ b/src/server/scripts/Commands/cs_gm.cpp
@@ -208,7 +208,7 @@ public:
 
         if (param == "on")
         {
-            if (_player->HasAura(VISUAL_AURA, 0))
+            if (_player->HasAura(VISUAL_AURA))
                 _player->RemoveAurasDueToSpell(VISUAL_AURA);
 
             _player->SetGMVisible(true);
diff --git a/src/server/scripts/Commands/cs_go.cpp b/src/server/scripts/Commands/cs_go.cpp
index 6c321a66c48..a7fa77fbe97 100644
--- a/src/server/scripts/Commands/cs_go.cpp
+++ b/src/server/scripts/Commands/cs_go.cpp
@@ -140,7 +140,7 @@ public:
 
         Transport* transport = NULL;
 
-        if (Creature* creature = ObjectAccessor::GetObjectInWorld(MAKE_NEW_GUID(guid, id, HIGHGUID_UNIT), (Creature*)NULL))
+        if (Creature* creature = ObjectAccessor::GetObjectInWorld(ObjectGuid(HIGHGUID_UNIT, id, guid), (Creature*)NULL))
         {
             x = creature->GetPositionX();
             y = creature->GetPositionY();
diff --git a/src/server/scripts/Commands/cs_gobject.cpp b/src/server/scripts/Commands/cs_gobject.cpp
index d7b7adc05ba..c8168a1391a 100644
--- a/src/server/scripts/Commands/cs_gobject.cpp
+++ b/src/server/scripts/Commands/cs_gobject.cpp
@@ -327,7 +327,7 @@ public:
             return false;
         }
 
-        GameObject* target = handler->GetSession()->GetPlayer()->GetMap()->GetGameObject(MAKE_NEW_GUID(guidLow, id, HIGHGUID_GAMEOBJECT));
+        GameObject* target = handler->GetSession()->GetPlayer()->GetMap()->GetGameObject(ObjectGuid(HIGHGUID_GAMEOBJECT, id, guidLow));
 
         handler->PSendSysMessage(LANG_GAMEOBJECT_DETAIL, guidLow, objectInfo->name.c_str(), guidLow, id, x, y, z, mapId, o, phase);
 
@@ -370,13 +370,13 @@ public:
             return false;
         }
 
-        uint64 ownerGuid = object->GetOwnerGUID();
+        ObjectGuid ownerGuid = object->GetOwnerGUID();
         if (ownerGuid)
         {
             Unit* owner = ObjectAccessor::GetUnit(*handler->GetSession()->GetPlayer(), ownerGuid);
-            if (!owner || !IS_PLAYER_GUID(ownerGuid))
+            if (!owner || !ownerGuid.IsPlayer())
             {
-                handler->PSendSysMessage(LANG_COMMAND_DELOBJREFERCREATURE, GUID_LOPART(ownerGuid), object->GetGUIDLow());
+                handler->PSendSysMessage(LANG_COMMAND_DELOBJREFERCREATURE, ownerGuid.GetCounter(), object->GetGUIDLow());
                 handler->SetSentErrorMessage(true);
                 return false;
             }
diff --git a/src/server/scripts/Commands/cs_group.cpp b/src/server/scripts/Commands/cs_group.cpp
index 470eb27bad2..e39aca6f6a7 100644
--- a/src/server/scripts/Commands/cs_group.cpp
+++ b/src/server/scripts/Commands/cs_group.cpp
@@ -57,7 +57,7 @@ public:
             return false;
 
         // check online security
-        if (handler->HasLowerSecurity(target, 0))
+        if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
             return false;
 
         Group* group = target->GetGroup();
@@ -95,7 +95,7 @@ public:
                 continue;
 
             // check online security
-            if (handler->HasLowerSecurity(player, 0))
+            if (handler->HasLowerSecurity(player, ObjectGuid::Empty))
                 return false;
 
             std::string plNameLink = handler->GetNameLink(player);
@@ -147,7 +147,7 @@ public:
     {
         Player* player = NULL;
         Group* group = NULL;
-        uint64 guid = 0;
+        ObjectGuid guid;
         char* nameStr = strtok((char*)args, " ");
 
         if (!handler->GetPlayerGroupAndGUIDByName(nameStr, player, group, guid))
@@ -173,7 +173,7 @@ public:
     {
         Player* player = NULL;
         Group* group = NULL;
-        uint64 guid = 0;
+        ObjectGuid guid;
         char* nameStr = strtok((char*)args, " ");
 
         if (!handler->GetPlayerGroupAndGUIDByName(nameStr, player, group, guid))
@@ -194,7 +194,7 @@ public:
     {
         Player* player = NULL;
         Group* group = NULL;
-        uint64 guid = 0;
+        ObjectGuid guid;
         char* nameStr = strtok((char*)args, " ");
 
         if (!handler->GetPlayerGroupAndGUIDByName(nameStr, player, group, guid))
@@ -220,8 +220,8 @@ public:
         Player* playerTarget = NULL;
         Group* groupSource = NULL;
         Group* groupTarget = NULL;
-        uint64 guidSource = 0;
-        uint64 guidTarget = 0;
+        ObjectGuid guidSource;
+        ObjectGuid guidTarget;
         char* nameplgrStr = strtok((char*)args, " ");
         char* nameplStr = strtok(NULL, " ");
 
@@ -263,18 +263,18 @@ public:
         // Get ALL the variables!
         Player* playerTarget;
         uint32 phase = 0;
-        uint64 guidTarget;
+        ObjectGuid guidTarget;
         std::string nameTarget;
         std::string zoneName;
         const char* onlineState = "";
 
         // Parse the guid to uint32...
-        uint32 parseGUID = MAKE_NEW_GUID(atol((char*)args), 0, HIGHGUID_PLAYER);
+        ObjectGuid parseGUID(HIGHGUID_PLAYER, uint32(atol((char*)args)));
 
         // ... and try to extract a player out of it.
         if (sObjectMgr->GetPlayerNameByGUID(parseGUID, nameTarget))
         {
-            playerTarget = sObjectMgr->GetPlayerByLowGUID(parseGUID);
+            playerTarget = ObjectAccessor::FindPlayer(parseGUID);
             guidTarget = parseGUID;
         }
         // If not, we return false and end right away.
@@ -292,7 +292,7 @@ public:
         if (!groupTarget)
         {
             PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_GROUP_MEMBER);
-            stmt->setUInt32(0, guidTarget);
+            stmt->setUInt32(0, guidTarget.GetCounter());
             PreparedQueryResult resultGroup = CharacterDatabase.Query(stmt);
             if (resultGroup)
                 groupTarget = sGroupMgr->GetGroupByDbStoreId((*resultGroup)[0].GetUInt32());
@@ -368,7 +368,7 @@ public:
 
             // Now we can print those informations for every single member of each group!
             handler->PSendSysMessage(LANG_GROUP_PLAYER_NAME_GUID, slot.name.c_str(), onlineState,
-                zoneName.c_str(), phase, GUID_LOPART(slot.guid), flags.c_str(),
+                zoneName.c_str(), phase, slot.guid.GetCounter(), flags.c_str(),
                 lfg::GetRolesString(slot.roles).c_str());
         }
 
diff --git a/src/server/scripts/Commands/cs_guild.cpp b/src/server/scripts/Commands/cs_guild.cpp
index 362f16d29a3..e06fbde868c 100644
--- a/src/server/scripts/Commands/cs_guild.cpp
+++ b/src/server/scripts/Commands/cs_guild.cpp
@@ -132,7 +132,7 @@ public:
             return false;
 
         // if not guild name only (in "") then player name
-        uint64 targetGuid;
+        ObjectGuid targetGuid;
         if (!handler->extractPlayerTarget(*args != '"' ? (char*)args : NULL, NULL, &targetGuid))
             return false;
 
@@ -156,7 +156,7 @@ public:
     static bool HandleGuildUninviteCommand(ChatHandler* handler, char const* args)
     {
         Player* target;
-        uint64 targetGuid;
+        ObjectGuid targetGuid;
         if (!handler->extractPlayerTarget((char*)args, &target, &targetGuid))
             return false;
 
@@ -181,7 +181,7 @@ public:
             return false;
 
         Player* target;
-        uint64 targetGuid;
+        ObjectGuid targetGuid;
         std::string target_name;
         if (!handler->extractPlayerTarget(nameStr, &target, &targetGuid, &target_name))
             return false;
@@ -251,7 +251,7 @@ public:
     {
         Guild* guild = nullptr;
 
-        if (args && strlen(args) > 0)
+        if (args && args[0] != '\0')
         {
             if (isNumeric(args))
             {
@@ -275,7 +275,7 @@ public:
 
         std::string guildMasterName;
         if (sObjectMgr->GetPlayerNameByGUID(guild->GetLeaderGUID(), guildMasterName))
-            handler->PSendSysMessage(LANG_GUILD_INFO_GUILD_MASTER, guildMasterName.c_str(), guild->GetLeaderGUID()); // Guild Master
+            handler->PSendSysMessage(LANG_GUILD_INFO_GUILD_MASTER, guildMasterName.c_str(), guild->GetLeaderGUID().GetCounter()); // Guild Master
 
         // Format creation date
         char createdDateStr[20];
diff --git a/src/server/scripts/Commands/cs_honor.cpp b/src/server/scripts/Commands/cs_honor.cpp
index 6b76f753403..eeaee40fea9 100644
--- a/src/server/scripts/Commands/cs_honor.cpp
+++ b/src/server/scripts/Commands/cs_honor.cpp
@@ -71,7 +71,7 @@ public:
         }
 
         // check online security
-        if (handler->HasLowerSecurity(target, 0))
+        if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
             return false;
 
         uint32 amount = (uint32)atoi(args);
@@ -91,7 +91,7 @@ public:
 
         // check online security
         if (Player* player = target->ToPlayer())
-            if (handler->HasLowerSecurity(player, 0))
+            if (handler->HasLowerSecurity(player, ObjectGuid::Empty))
                 return false;
 
         handler->GetSession()->GetPlayer()->RewardHonor(target, 1);
@@ -109,7 +109,7 @@ public:
         }
 
         // check online security
-        if (handler->HasLowerSecurity(target, 0))
+        if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
             return false;
 
         target->UpdateHonorFields();
diff --git a/src/server/scripts/Commands/cs_instance.cpp b/src/server/scripts/Commands/cs_instance.cpp
index 464d58ad908..a426c49a5f7 100644
--- a/src/server/scripts/Commands/cs_instance.cpp
+++ b/src/server/scripts/Commands/cs_instance.cpp
@@ -125,7 +125,7 @@ public:
         uint16 counter = 0;
         uint16 MapId = 0;
 
-        if (strcmp(map, "all"))
+        if (strcmp(map, "all") != 0)
         {
             MapId = uint16(atoi(map));
             if (!MapId)
diff --git a/src/server/scripts/Commands/cs_lfg.cpp b/src/server/scripts/Commands/cs_lfg.cpp
index 2f6afd29e9f..1a4cce16d68 100644
--- a/src/server/scripts/Commands/cs_lfg.cpp
+++ b/src/server/scripts/Commands/cs_lfg.cpp
@@ -27,7 +27,7 @@ void GetPlayerInfo(ChatHandler* handler, Player* player)
     if (!player)
         return;
 
-    uint64 guid = player->GetGUID();
+    ObjectGuid guid = player->GetGUID();
     lfg::LfgDungeonSet dungeons = sLFGMgr->GetSelectedDungeons(guid);
 
     std::string const& state = lfg::GetStateString(sLFGMgr->GetState(guid));
@@ -86,7 +86,7 @@ public:
             return true;
         }
 
-        uint64 guid = grp->GetGUID();
+        ObjectGuid guid = grp->GetGUID();
         std::string const& state = lfg::GetStateString(sLFGMgr->GetState(guid));
         handler->PSendSysMessage(LANG_LFG_GROUP_INFO, grp->isLFGGroup(),
             state.c_str(), sLFGMgr->GetDungeon(guid));
diff --git a/src/server/scripts/Commands/cs_list.cpp b/src/server/scripts/Commands/cs_list.cpp
index ff0a5519495..f12fbee44b5 100644
--- a/src/server/scripts/Commands/cs_list.cpp
+++ b/src/server/scripts/Commands/cs_list.cpp
@@ -447,8 +447,8 @@ public:
             handler->PSendSysMessage(LANG_COMMAND_TARGET_AURADETAIL, aura->GetId(), (handler->GetSession() ? ss_name.str().c_str() : name),
                 aurApp->GetEffectMask(), aura->GetCharges(), aura->GetStackAmount(), aurApp->GetSlot(),
                 aura->GetDuration(), aura->GetMaxDuration(), (aura->IsPassive() ? passiveStr : ""),
-                (talent ? talentStr : ""), IS_PLAYER_GUID(aura->GetCasterGUID()) ? "player" : "creature",
-                GUID_LOPART(aura->GetCasterGUID()));
+                (talent ? talentStr : ""), aura->GetCasterGUID().IsPlayer() ? "player" : "creature",
+                aura->GetCasterGUID().GetCounter());
         }
 
         for (uint16 i = 0; i < TOTAL_AURAS; ++i)
@@ -469,25 +469,25 @@ public:
     static bool HandleListMailCommand(ChatHandler* handler, char const* args)
     {
         Player* target;
-        uint64 targetGuid;
+        ObjectGuid targetGuid;
         std::string targetName;
         PreparedStatement* stmt = NULL;
 
         if (!*args)
             return false;
 
-        uint32 parseGUID = MAKE_NEW_GUID(atol((char*)args), 0, HIGHGUID_PLAYER);
+        ObjectGuid parseGUID(HIGHGUID_PLAYER, uint32(atol((char*)args)));
 
         if (sObjectMgr->GetPlayerNameByGUID(parseGUID, targetName))
         {
-            target = sObjectMgr->GetPlayerByLowGUID(parseGUID);
+            target = ObjectAccessor::FindPlayer(parseGUID);
             targetGuid = parseGUID;
         }
         else if (!handler->extractPlayerTarget((char*)args, &target, &targetGuid, &targetName))
             return false;
 
         stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_MAIL_LIST_COUNT);
-        stmt->setUInt32(0, targetGuid);
+        stmt->setUInt32(0, targetGuid.GetCounter());
         PreparedQueryResult queryResult = CharacterDatabase.Query(stmt);
         if (queryResult)
         {
@@ -495,11 +495,11 @@ public:
             uint32 countMail    = fields[0].GetUInt64();
 
             std::string nameLink = handler->playerLink(targetName);
-            handler->PSendSysMessage(LANG_LIST_MAIL_HEADER, countMail, nameLink.c_str(), targetGuid);
+            handler->PSendSysMessage(LANG_LIST_MAIL_HEADER, countMail, nameLink.c_str(), targetGuid.GetCounter());
             handler->PSendSysMessage(LANG_ACCOUNT_LIST_BAR);
 
             stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_MAIL_LIST_INFO);
-            stmt->setUInt32(0, targetGuid);
+            stmt->setUInt32(0, targetGuid.GetCounter());
             PreparedQueryResult queryResult = CharacterDatabase.Query(stmt);
 
             if (queryResult)
diff --git a/src/server/scripts/Commands/cs_misc.cpp b/src/server/scripts/Commands/cs_misc.cpp
index 319151141b7..9277956262f 100644
--- a/src/server/scripts/Commands/cs_misc.cpp
+++ b/src/server/scripts/Commands/cs_misc.cpp
@@ -135,7 +135,7 @@ public:
         WorldObject* object = NULL;
         if (*args)
         {
-            uint64 guid = handler->extractGuidFromLink((char*)args);
+            ObjectGuid guid = handler->extractGuidFromLink((char*)args);
             if (guid)
                 object = (WorldObject*)ObjectAccessor::GetObjectByTypeMask(*handler->GetSession()->GetPlayer(), guid, TYPEMASK_UNIT | TYPEMASK_GAMEOBJECT);
 
@@ -180,9 +180,8 @@ public:
 
         GridCoord gridCoord = Trinity::ComputeGridCoord(object->GetPositionX(), object->GetPositionY());
 
-        // 63? WHY?
-        int gridX = 63 - gridCoord.x_coord;
-        int gridY = 63 - gridCoord.y_coord;
+        int gridX = (MAX_NUMBER_OF_GRIDS - 1) - gridCoord.x_coord;
+        int gridY = (MAX_NUMBER_OF_GRIDS - 1) - gridCoord.y_coord;
 
         uint32 haveMap = Map::ExistMap(mapId, gridX, gridY) ? 1 : 0;
         uint32 haveVMap = Map::ExistVMap(mapId, gridX, gridY) ? 1 : 0;
@@ -198,10 +197,12 @@ public:
         else
             handler->PSendSysMessage(LANG_GPS_NO_VMAP);
 
+        char const* unknown = handler->GetTrinityString(LANG_UNKNOWN);
+
         handler->PSendSysMessage(LANG_MAP_POSITION,
-            mapId, (mapEntry ? mapEntry->name : handler->GetTrinityString(LANG_UNKNOWN)),
-            zoneId, (zoneEntry ? zoneEntry->area_name : handler->GetTrinityString(LANG_UNKNOWN)),
-            areaId, (areaEntry ? areaEntry->area_name : handler->GetTrinityString(LANG_UNKNOWN)),
+            mapId, (mapEntry ? mapEntry->name : unknown),
+            zoneId, (zoneEntry ? zoneEntry->area_name : unknown),
+            areaId, (areaEntry ? areaEntry->area_name : unknown),
             object->GetPhaseMask(),
             object->GetPositionX(), object->GetPositionY(), object->GetPositionZ(), object->GetOrientation(),
             cell.GridX(), cell.GridY(), cell.CellX(), cell.CellY(), object->GetInstanceId(),
@@ -265,7 +266,7 @@ public:
     static bool HandleAppearCommand(ChatHandler* handler, char const* args)
     {
         Player* target;
-        uint64 targetGuid;
+        ObjectGuid targetGuid;
         std::string targetName;
         if (!handler->extractPlayerTarget((char*)args, &target, &targetGuid, &targetName))
             return false;
@@ -281,7 +282,7 @@ public:
         if (target)
         {
             // check online security
-            if (handler->HasLowerSecurity(target, 0))
+            if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
                 return false;
 
             std::string chrNameLink = handler->playerLink(targetName);
@@ -408,7 +409,7 @@ public:
     static bool HandleSummonCommand(ChatHandler* handler, char const* args)
     {
         Player* target;
-        uint64 targetGuid;
+        ObjectGuid targetGuid;
         std::string targetName;
         if (!handler->extractPlayerTarget((char*)args, &target, &targetGuid, &targetName))
             return false;
@@ -425,7 +426,7 @@ public:
         {
             std::string nameLink = handler->playerLink(targetName);
             // check online security
-            if (handler->HasLowerSecurity(target, 0))
+            if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
                 return false;
 
             if (target->IsBeingTeleported())
@@ -538,7 +539,7 @@ public:
         }
 
         if (Player* player = target->ToPlayer())
-            if (handler->HasLowerSecurity(player, 0, false))
+            if (handler->HasLowerSecurity(player, ObjectGuid::Empty, false))
                 return false;
 
         if (target->IsAlive())
@@ -555,7 +556,7 @@ public:
     static bool HandleReviveCommand(ChatHandler* handler, char const* args)
     {
         Player* target;
-        uint64 targetGuid;
+        ObjectGuid targetGuid;
         if (!handler->extractPlayerTarget((char*)args, &target, &targetGuid))
             return false;
 
@@ -598,16 +599,16 @@ public:
 
     static bool HandleGUIDCommand(ChatHandler* handler, char const* /*args*/)
     {
-        uint64 guid = handler->GetSession()->GetPlayer()->GetTarget();
+        ObjectGuid guid = handler->GetSession()->GetPlayer()->GetTarget();
 
-        if (guid == 0)
+        if (guid.IsEmpty())
         {
             handler->SendSysMessage(LANG_NO_SELECTION);
             handler->SetSentErrorMessage(true);
             return false;
         }
 
-        handler->PSendSysMessage(LANG_OBJECT_GUID, GUID_LOPART(guid), GUID_HIPART(guid));
+        handler->PSendSysMessage(LANG_OBJECT_GUID, guid.GetCounter(), guid.GetHigh());
         return true;
     }
 
@@ -704,7 +705,7 @@ public:
 
         if (*args)
         {
-            uint64 guid = handler->extractGuidFromLink((char*)args);
+            ObjectGuid guid = handler->extractGuidFromLink((char*)args);
             if (guid)
                 obj = (WorldObject*)ObjectAccessor::GetObjectByTypeMask(*handler->GetSession()->GetPlayer(), guid, TYPEMASK_UNIT|TYPEMASK_GAMEOBJECT);
 
@@ -738,7 +739,7 @@ public:
             return false;
 
         // check online security
-        if (handler->HasLowerSecurity(target, 0))
+        if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
             return false;
 
         if (target->IsBeingTeleported())
@@ -806,7 +807,7 @@ public:
         }
 
         // check online security
-        if (handler->HasLowerSecurity(target, 0))
+        if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
             return false;
 
         std::string kickReasonStr = handler->GetTrinityString(LANG_NO_REASON);
@@ -1381,17 +1382,17 @@ public:
     {
         // Define ALL the player variables!
         Player* target;
-        uint64 targetGuid;
+        ObjectGuid targetGuid;
         std::string targetName;
         PreparedStatement* stmt = NULL;
 
         // To make sure we get a target, we convert our guid to an omniversal...
-        uint32 parseGUID = MAKE_NEW_GUID(atol((char*)args), 0, HIGHGUID_PLAYER);
+        ObjectGuid parseGUID(HIGHGUID_PLAYER, uint32(atol((char*)args)));
 
         // ... and make sure we get a target, somehow.
         if (sObjectMgr->GetPlayerNameByGUID(parseGUID, targetName))
         {
-            target = sObjectMgr->GetPlayerByLowGUID(parseGUID);
+            target = ObjectAccessor::FindPlayer(parseGUID);
             targetGuid = parseGUID;
         }
         // if not, then return false. Which shouldn't happen, now should it ?
@@ -1433,7 +1434,7 @@ public:
         // Account data print variables
         std::string userName          = handler->GetTrinityString(LANG_ERROR);
         uint32 accId                  = 0;
-        uint32 lowguid                = GUID_LOPART(targetGuid);
+        uint32 lowguid                = targetGuid.GetCounter();
         std::string eMail             = handler->GetTrinityString(LANG_ERROR);
         std::string regMail           = handler->GetTrinityString(LANG_ERROR);
         uint32 security               = 0;
@@ -1487,7 +1488,7 @@ public:
         if (target)
         {
             // check online security
-            if (handler->HasLowerSecurity(target, 0))
+            if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
                 return false;
 
             accId             = target->GetSession()->GetAccountId();
@@ -1712,7 +1713,9 @@ public:
         }
 
         if (target)
-            handler->PSendSysMessage(LANG_PINFO_CHR_MAP, map->name, (!zoneName.empty() ? zoneName.c_str() : handler->GetTrinityString(LANG_UNKNOWN)), (!areaName.empty() ? areaName.c_str() : handler->GetTrinityString(LANG_UNKNOWN)));
+            handler->PSendSysMessage(LANG_PINFO_CHR_MAP, map->name,
+                (!zoneName.empty() ? zoneName.c_str() : handler->GetTrinityString(LANG_UNKNOWN)),
+                (!areaName.empty() ? areaName.c_str() : handler->GetTrinityString(LANG_UNKNOWN)));
 
         // Output XVII. - XVIX. if they are not empty
         if (!guildName.empty())
@@ -1797,7 +1800,7 @@ public:
             muteReasonStr = muteReason;
 
         Player* target;
-        uint64 targetGuid;
+        ObjectGuid targetGuid;
         std::string targetName;
         if (!handler->extractPlayerTarget(nameStr, &target, &targetGuid, &targetName))
             return false;
@@ -1860,7 +1863,7 @@ public:
     static bool HandleUnmuteCommand(ChatHandler* handler, char const* args)
     {
         Player* target;
-        uint64 targetGuid;
+        ObjectGuid targetGuid;
         std::string targetName;
         if (!handler->extractPlayerTarget((char*)args, &target, &targetGuid, &targetName))
             return false;
@@ -2116,7 +2119,7 @@ public:
         }
 
         if (Player* player = target->ToPlayer())
-            if (handler->HasLowerSecurity(player, 0, false))
+            if (handler->HasLowerSecurity(player, ObjectGuid::Empty, false))
                 return false;
 
         if (!target->IsAlive())
@@ -2188,7 +2191,7 @@ public:
     {
         Player* target = NULL;
 
-        if (args && strlen(args) > 0)
+        if (args && args[0] != '\0')
         {
             target = sObjectAccessor->FindPlayerByName(args);
             if (!target)
@@ -2206,7 +2209,7 @@ public:
         }
 
         // check online security
-        if (handler->HasLowerSecurity(target, 0))
+        if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
             return false;
 
         target->CombatStop();
@@ -2221,7 +2224,7 @@ public:
             return false;
 
         // check online security
-        if (handler->HasLowerSecurity(target, 0))
+        if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
             return false;
 
         // Repair items
diff --git a/src/server/scripts/Commands/cs_modify.cpp b/src/server/scripts/Commands/cs_modify.cpp
index 36182a535a7..d88e1670a09 100644
--- a/src/server/scripts/Commands/cs_modify.cpp
+++ b/src/server/scripts/Commands/cs_modify.cpp
@@ -107,7 +107,7 @@ public:
             return false;
         }
 
-        if (handler->HasLowerSecurity(target, 0))
+        if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
             return false;
 
         handler->PSendSysMessage(LANG_YOU_CHANGE_HP, handler->GetNameLink(target).c_str(), hp, hpm);
@@ -145,7 +145,7 @@ public:
         }
 
         // check online security
-        if (handler->HasLowerSecurity(target, 0))
+        if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
             return false;
 
         handler->PSendSysMessage(LANG_YOU_CHANGE_MANA, handler->GetNameLink(target).c_str(), mana, manam);
@@ -194,7 +194,7 @@ public:
         }
 
         // check online security
-        if (handler->HasLowerSecurity(target, 0))
+        if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
             return false;
 
         handler->PSendSysMessage(LANG_YOU_CHANGE_ENERGY, handler->GetNameLink(target).c_str(), energy/10, energym/10);
@@ -245,7 +245,7 @@ public:
         }
 
         // check online security
-        if (handler->HasLowerSecurity(target, 0))
+        if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
             return false;
 
         handler->PSendSysMessage(LANG_YOU_CHANGE_RAGE, handler->GetNameLink(target).c_str(), rage/10, ragem/10);
@@ -399,7 +399,7 @@ public:
         }
 
         // check online security
-        if (handler->HasLowerSecurity(target, 0))
+        if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
             return false;
 
         handler->PSendSysMessage(LANG_YOU_CHANGE_SPELLFLATID, spellflatid, val, mark, handler->GetNameLink(target).c_str());
@@ -437,7 +437,7 @@ public:
         if (target->GetTypeId() == TYPEID_PLAYER)
         {
             // check online security
-            if (handler->HasLowerSecurity(target->ToPlayer(), 0))
+            if (handler->HasLowerSecurity(target->ToPlayer(), ObjectGuid::Empty))
                 return false;
             target->ToPlayer()->SetFreeTalentPoints(tp);
             target->ToPlayer()->SendTalentsInfoData(false);
@@ -449,7 +449,7 @@ public:
             if (owner && owner->GetTypeId() == TYPEID_PLAYER && ((Pet*)target)->IsPermanentPetFor(owner->ToPlayer()))
             {
                 // check online security
-                if (handler->HasLowerSecurity(owner->ToPlayer(), 0))
+                if (handler->HasLowerSecurity(owner->ToPlayer(), ObjectGuid::Empty))
                     return false;
                 ((Pet*)target)->SetFreeTalentPoints(tp);
                 owner->ToPlayer()->SendTalentsInfoData(true);
@@ -486,7 +486,7 @@ public:
         }
 
         // check online security
-        if (handler->HasLowerSecurity(target, 0))
+        if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
             return false;
 
         std::string targetNameLink = handler->GetNameLink(target);
@@ -534,7 +534,7 @@ public:
         }
 
         // check online security
-        if (handler->HasLowerSecurity(target, 0))
+        if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
             return false;
 
         std::string targetNameLink = handler->GetNameLink(target);
@@ -579,7 +579,7 @@ public:
         }
 
         // check online security
-        if (handler->HasLowerSecurity(target, 0))
+        if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
             return false;
 
         std::string targetNameLink = handler->GetNameLink(target);
@@ -624,7 +624,7 @@ public:
         }
 
         // check online security
-        if (handler->HasLowerSecurity(target, 0))
+        if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
             return false;
 
         std::string targetNameLink = handler->GetNameLink(target);
@@ -669,7 +669,7 @@ public:
         }
 
         // check online security
-        if (handler->HasLowerSecurity(target, 0))
+        if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
             return false;
 
         handler->PSendSysMessage(LANG_YOU_CHANGE_FLY_SPEED, FSpeed, handler->GetNameLink(target).c_str());
@@ -706,7 +706,7 @@ public:
         if (Player* player = target->ToPlayer())
         {
             // check online security
-            if (handler->HasLowerSecurity(player, 0))
+            if (handler->HasLowerSecurity(player, ObjectGuid::Empty))
                 return false;
 
             handler->PSendSysMessage(LANG_YOU_CHANGE_SIZE, Scale, handler->GetNameLink(player).c_str());
@@ -954,7 +954,7 @@ public:
         }
 
         // check online security
-        if (handler->HasLowerSecurity(target, 0))
+        if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
             return false;
 
         handler->PSendSysMessage(LANG_YOU_GIVE_MOUNT, handler->GetNameLink(target).c_str());
@@ -965,14 +965,14 @@ public:
         target->Mount(mId);
 
         WorldPacket data(SMSG_MOVE_SET_RUN_SPEED, (8+4+1+4));
-        data.append(target->GetPackGUID());
+        data << target->GetPackGUID();
         data << (uint32)0;
         data << (uint8)0;                                       //new 2.1.0
         data << float(speed);
         target->SendMessageToSet(&data, true);
 
         data.Initialize(SMSG_MOVE_SET_SWIM_SPEED, (8+4+4));
-        data.append(target->GetPackGUID());
+        data << target->GetPackGUID();
         data << (uint32)0;
         data << float(speed);
         target->SendMessageToSet(&data, true);
@@ -995,7 +995,7 @@ public:
         }
 
         // check online security
-        if (handler->HasLowerSecurity(target, 0))
+        if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
             return false;
 
         int64 moneyToAdd = 0;
@@ -1066,7 +1066,7 @@ public:
         }
 
         // check online security
-        if (target->GetTypeId() == TYPEID_PLAYER && handler->HasLowerSecurity(target->ToPlayer(), 0))
+        if (target->GetTypeId() == TYPEID_PLAYER && handler->HasLowerSecurity(target->ToPlayer(), ObjectGuid::Empty))
             return false;
 
         char* pField = strtok((char*)args, " ");
@@ -1120,7 +1120,7 @@ public:
         }
 
         // check online security
-        if (handler->HasLowerSecurity(target, 0))
+        if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
             return false;
 
         int32 amount = (uint32)atoi(args);
@@ -1161,7 +1161,7 @@ public:
         }
 
         // check online security
-        if (handler->HasLowerSecurity(target, 0))
+        if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
             return false;
 
         char* factionTxt = handler->extractKeyFromLink((char*)args, "Hfaction");
@@ -1260,7 +1260,7 @@ public:
             target = handler->GetSession()->GetPlayer();
 
         // check online security
-        else if (target->GetTypeId() == TYPEID_PLAYER && handler->HasLowerSecurity(target->ToPlayer(), 0))
+        else if (target->GetTypeId() == TYPEID_PLAYER && handler->HasLowerSecurity(target->ToPlayer(), ObjectGuid::Empty))
             return false;
 
         target->SetDisplayId(display_id);
@@ -1365,7 +1365,7 @@ public:
             target = handler->GetSession()->GetPlayer();
 
         // check online security
-        else if (target->GetTypeId() == TYPEID_PLAYER && handler->HasLowerSecurity(target->ToPlayer(), 0))
+        else if (target->GetTypeId() == TYPEID_PLAYER && handler->HasLowerSecurity(target->ToPlayer(), ObjectGuid::Empty))
             return false;
 
         target->DeMorph();
diff --git a/src/server/scripts/Commands/cs_npc.cpp b/src/server/scripts/Commands/cs_npc.cpp
index df80429f6de..85bc6db46f5 100644
--- a/src/server/scripts/Commands/cs_npc.cpp
+++ b/src/server/scripts/Commands/cs_npc.cpp
@@ -527,7 +527,7 @@ public:
                 return false;
 
             if (CreatureData const* cr_data = sObjectMgr->GetCreatureData(lowguid))
-                unit = handler->GetSession()->GetPlayer()->GetMap()->GetCreature(MAKE_NEW_GUID(lowguid, cr_data->id, HIGHGUID_UNIT));
+                unit = handler->GetSession()->GetPlayer()->GetMap()->GetCreature(ObjectGuid(HIGHGUID_UNIT, cr_data->id, lowguid));
         }
         else
             unit = handler->getSelectedCreature();
@@ -689,8 +689,8 @@ public:
         }
 
         creature->AI()->SetData(data_1, data_2);
-        std::string AIorScript = creature->GetAIName() != "" ? "AI type: " + creature->GetAIName() : (creature->GetScriptName() != "" ? "Script Name: " + creature->GetScriptName() : "No AI or Script Name Set");
-        handler->PSendSysMessage(LANG_NPC_SETDATA, creature->GetGUID(), creature->GetEntry(), creature->GetName().c_str(), data_1, data_2, AIorScript.c_str());
+        std::string AIorScript = !creature->GetAIName().empty() ? "AI type: " + creature->GetAIName() : (!creature->GetScriptName().empty() ? "Script Name: " + creature->GetScriptName() : "No AI or Script Name Set");
+        handler->PSendSysMessage(LANG_NPC_SETDATA, creature->GetGUID().GetCounter(), creature->GetEntry(), creature->GetName().c_str(), data_1, data_2, AIorScript.c_str());
         return true;
     }
 
@@ -1323,11 +1323,11 @@ public:
             return false;
         }
 
-        uint64 receiver_guid = atol(receiver_str);
+        ObjectGuid receiver_guid(HIGHGUID_PLAYER, uint32(atol(receiver_str)));
 
         // check online security
         Player* receiver = ObjectAccessor::FindPlayer(receiver_guid);
-        if (handler->HasLowerSecurity(receiver, 0))
+        if (handler->HasLowerSecurity(receiver, ObjectGuid::Empty))
             return false;
 
         creature->Whisper(text, LANG_UNIVERSAL, receiver);
diff --git a/src/server/scripts/Commands/cs_pet.cpp b/src/server/scripts/Commands/cs_pet.cpp
index 82f99501a58..bb5e0764f2f 100644
--- a/src/server/scripts/Commands/cs_pet.cpp
+++ b/src/server/scripts/Commands/cs_pet.cpp
@@ -85,7 +85,7 @@ public:
         creatureTarget->RemoveCorpse();
         creatureTarget->SetHealth(0); // just for nice GM-mode view
 
-        pet->SetUInt64Value(UNIT_FIELD_CREATEDBY, player->GetGUID());
+        pet->SetGuidValue(UNIT_FIELD_CREATEDBY, player->GetGUID());
         pet->SetUInt32Value(UNIT_FIELD_FACTIONTEMPLATE, player->getFaction());
 
         if (!pet->InitStatsForLevel(creatureTarget->getLevel()))
diff --git a/src/server/scripts/Commands/cs_quest.cpp b/src/server/scripts/Commands/cs_quest.cpp
index 08603279824..dc75e0aedab 100644
--- a/src/server/scripts/Commands/cs_quest.cpp
+++ b/src/server/scripts/Commands/cs_quest.cpp
@@ -206,11 +206,11 @@ public:
             {
                 if (CreatureTemplate const* creatureInfo = sObjectMgr->GetCreatureTemplate(creature))
                     for (uint16 z = 0; z < creatureCount; ++z)
-                        player->KilledMonster(creatureInfo, 0);
+                        player->KilledMonster(creatureInfo, ObjectGuid::Empty);
             }
             else if (creature < 0)
                 for (uint16 z = 0; z < creatureCount; ++z)
-                    player->KillCreditGO(creature, 0);
+                    player->KillCreditGO(creature);
         }
 
         // If the quest requires reputation to complete
diff --git a/src/server/scripts/Commands/cs_reset.cpp b/src/server/scripts/Commands/cs_reset.cpp
index 495dc522414..faf87adc7b6 100644
--- a/src/server/scripts/Commands/cs_reset.cpp
+++ b/src/server/scripts/Commands/cs_reset.cpp
@@ -59,14 +59,14 @@ public:
     static bool HandleResetAchievementsCommand(ChatHandler* handler, char const* args)
     {
         Player* target;
-        uint64 targetGuid;
+        ObjectGuid targetGuid;
         if (!handler->extractPlayerTarget((char*)args, &target, &targetGuid))
             return false;
 
         if (target)
             target->ResetAchievements();
         else
-            AchievementMgr<Player>::DeleteFromDB(GUID_LOPART(targetGuid));
+            AchievementMgr<Player>::DeleteFromDB(targetGuid);
 
         return true;
     }
@@ -155,7 +155,7 @@ public:
     static bool HandleResetSpellsCommand(ChatHandler* handler, char const* args)
     {
         Player* target;
-        uint64 targetGuid;
+        ObjectGuid targetGuid;
         std::string targetName;
         if (!handler->extractPlayerTarget((char*)args, &target, &targetGuid, &targetName))
             return false;
@@ -172,7 +172,7 @@ public:
         {
             PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_UPD_ADD_AT_LOGIN_FLAG);
             stmt->setUInt16(0, uint16(AT_LOGIN_RESET_SPELLS));
-            stmt->setUInt32(1, GUID_LOPART(targetGuid));
+            stmt->setUInt32(1, targetGuid.GetCounter());
             CharacterDatabase.Execute(stmt);
 
             handler->PSendSysMessage(LANG_RESET_SPELLS_OFFLINE, targetName.c_str());
@@ -202,7 +202,7 @@ public:
     static bool HandleResetTalentsCommand(ChatHandler* handler, char const* args)
     {
         Player* target;
-        uint64 targetGuid;
+        ObjectGuid targetGuid;
         std::string targetName;
         if (!handler->extractPlayerTarget((char*)args, &target, &targetGuid, &targetName))
         {
@@ -246,7 +246,7 @@ public:
         {
             PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_UPD_ADD_AT_LOGIN_FLAG);
             stmt->setUInt16(0, uint16(AT_LOGIN_NONE | AT_LOGIN_RESET_PET_TALENTS));
-            stmt->setUInt32(1, GUID_LOPART(targetGuid));
+            stmt->setUInt32(1, targetGuid.GetCounter());
             CharacterDatabase.Execute(stmt);
 
             std::string nameLink = handler->playerLink(targetName);
diff --git a/src/server/scripts/Commands/cs_send.cpp b/src/server/scripts/Commands/cs_send.cpp
index 486645df290..e27f09278fd 100644
--- a/src/server/scripts/Commands/cs_send.cpp
+++ b/src/server/scripts/Commands/cs_send.cpp
@@ -51,7 +51,7 @@ public:
     {
         // format: name "subject text" "mail text"
         Player* target;
-        uint64 targetGuid;
+        ObjectGuid targetGuid;
         std::string targetName;
         if (!handler->extractPlayerTarget((char*)args, &target, &targetGuid, &targetName))
             return false;
@@ -82,7 +82,7 @@ public:
         /// @todo Fix poor design
         SQLTransaction trans = CharacterDatabase.BeginTransaction();
         MailDraft(subject, text)
-            .SendMailTo(trans, MailReceiver(target, GUID_LOPART(targetGuid)), sender);
+            .SendMailTo(trans, MailReceiver(target, targetGuid.GetCounter()), sender);
 
         CharacterDatabase.CommitTransaction(trans);
 
@@ -96,7 +96,7 @@ public:
     {
         // format: name "subject text" "mail text" item1[:count1] item2[:count2] ... item12[:count12]
         Player* receiver;
-        uint64 receiverGuid;
+        ObjectGuid receiverGuid;
         std::string receiverName;
         if (!handler->extractPlayerTarget((char*)args, &receiver, &receiverGuid, &receiverName))
             return false;
@@ -192,7 +192,7 @@ public:
             }
         }
 
-        draft.SendMailTo(trans, MailReceiver(receiver, GUID_LOPART(receiverGuid)), sender);
+        draft.SendMailTo(trans, MailReceiver(receiver, receiverGuid.GetCounter()), sender);
         CharacterDatabase.CommitTransaction(trans);
 
         std::string nameLink = handler->playerLink(receiverName);
@@ -205,7 +205,7 @@ public:
         /// format: name "subject text" "mail text" money
 
         Player* receiver;
-        uint64 receiverGuid;
+        ObjectGuid receiverGuid;
         std::string receiverName;
         if (!handler->extractPlayerTarget((char*)args, &receiver, &receiverGuid, &receiverName))
             return false;
@@ -242,7 +242,7 @@ public:
 
         MailDraft(subject, text)
             .AddMoney(money)
-            .SendMailTo(trans, MailReceiver(receiver, GUID_LOPART(receiverGuid)), sender);
+            .SendMailTo(trans, MailReceiver(receiver, receiverGuid.GetCounter()), sender);
 
         CharacterDatabase.CommitTransaction(trans);
 
diff --git a/src/server/scripts/Commands/cs_tele.cpp b/src/server/scripts/Commands/cs_tele.cpp
index ad77464b6e1..6b4fb7d104d 100644
--- a/src/server/scripts/Commands/cs_tele.cpp
+++ b/src/server/scripts/Commands/cs_tele.cpp
@@ -123,7 +123,7 @@ public:
             return false;
 
         Player* target;
-        uint64 target_guid;
+        ObjectGuid target_guid;
         std::string target_name;
         if (!handler->extractPlayerTarget(nameStr, &target, &target_guid, &target_name))
             return false;
@@ -135,7 +135,7 @@ public:
             else
             {
                 PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_SEL_CHAR_HOMEBIND);
-                stmt->setUInt32(0, target_guid);
+                stmt->setUInt32(0, target_guid.GetCounter());
                 PreparedQueryResult resultDB = CharacterDatabase.Query(stmt);
 
                 if (resultDB)
@@ -166,7 +166,7 @@ public:
         if (target)
         {
             // check online security
-            if (handler->HasLowerSecurity(target, 0))
+            if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
                 return false;
 
             std::string chrNameLink = handler->playerLink(target_name);
@@ -225,7 +225,7 @@ public:
         }
 
         // check online security
-        if (handler->HasLowerSecurity(target, 0))
+        if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
             return false;
 
         // id, or string, or [name] Shift-click form |color|Htele:id|h[name]|h|r
@@ -263,7 +263,7 @@ public:
                 continue;
 
             // check online security
-            if (handler->HasLowerSecurity(player, 0))
+            if (handler->HasLowerSecurity(player, ObjectGuid::Empty))
                 return false;
 
             std::string plNameLink = handler->GetNameLink(player);
diff --git a/src/server/scripts/Commands/cs_ticket.cpp b/src/server/scripts/Commands/cs_ticket.cpp
index cbf0ae51a82..674658f41ff 100644
--- a/src/server/scripts/Commands/cs_ticket.cpp
+++ b/src/server/scripts/Commands/cs_ticket.cpp
@@ -95,7 +95,7 @@ public:
             return true;
         }
 
-        uint64 targetGuid = sObjectMgr->GetPlayerGUIDByName(target);
+        ObjectGuid targetGuid = sObjectMgr->GetPlayerGUIDByName(target);
         uint32 accountId = sObjectMgr->GetPlayerAccountIdByGUID(targetGuid);
         // Target must exist and have administrative rights
         if (!AccountMgr::HasPermission(accountId, rbac::RBAC_PERM_COMMANDS_BE_ASSIGNED_TICKET, realmID))
@@ -153,7 +153,7 @@ public:
             return true;
         }
 
-        sTicketMgr->CloseTicket(ticket->GetId(), player ? player->GetGUID() : -1);
+        sTicketMgr->CloseTicket(ticket->GetId(), player ? player->GetGUID() : ObjectGuid(uint64(-1)));
         sTicketMgr->UpdateLastChange();
 
         std::string msg = ticket->FormatMessageString(*handler, player ? player->GetName().c_str() : "Console", NULL, NULL, NULL, NULL);
@@ -376,7 +376,7 @@ public:
             security = assignedPlayer->GetSession()->GetSecurity();
         else
         {
-            uint64 guid = ticket->GetAssignedToGUID();
+            ObjectGuid guid = ticket->GetAssignedToGUID();
             uint32 accountId = sObjectMgr->GetPlayerAccountIdByGUID(guid);
             security = AccountMgr::GetSecurity(accountId, realmID);
         }
@@ -434,7 +434,7 @@ public:
             return false;
 
         // Detect target's GUID
-        uint64 guid = 0;
+        ObjectGuid guid;
         if (Player* player = sObjectAccessor->FindPlayerByName(name))
             guid = player->GetGUID();
         else
diff --git a/src/server/scripts/Commands/cs_titles.cpp b/src/server/scripts/Commands/cs_titles.cpp
index b1e5bd0ca98..0826e0ca476 100644
--- a/src/server/scripts/Commands/cs_titles.cpp
+++ b/src/server/scripts/Commands/cs_titles.cpp
@@ -80,7 +80,7 @@ public:
         }
 
         // check online security
-        if (handler->HasLowerSecurity(target, 0))
+        if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
             return false;
 
         CharTitlesEntry const* titleInfo = sCharTitlesStore.LookupEntry(id);
@@ -124,7 +124,7 @@ public:
         }
 
         // check online security
-        if (handler->HasLowerSecurity(target, 0))
+        if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
             return false;
 
         CharTitlesEntry const* titleInfo = sCharTitlesStore.LookupEntry(id);
@@ -170,7 +170,7 @@ public:
         }
 
         // check online security
-        if (handler->HasLowerSecurity(target, 0))
+        if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
             return false;
 
         CharTitlesEntry const* titleInfo = sCharTitlesStore.LookupEntry(id);
@@ -218,7 +218,7 @@ public:
         }
 
         // check online security
-        if (handler->HasLowerSecurity(target, 0))
+        if (handler->HasLowerSecurity(target, ObjectGuid::Empty))
             return false;
 
         uint64 titles2 = titles;
diff --git a/src/server/scripts/Commands/cs_wp.cpp b/src/server/scripts/Commands/cs_wp.cpp
index 5698366acc9..f158b9aa59e 100644
--- a/src/server/scripts/Commands/cs_wp.cpp
+++ b/src/server/scripts/Commands/cs_wp.cpp
@@ -631,7 +631,7 @@ public:
             handler->PSendSysMessage("|cff00ff00DEBUG: wp modify del, PathID: |r|cff00ffff%u|r", pathid);
 
             if (wpGuid != 0)
-                if (Creature* wpCreature = handler->GetSession()->GetPlayer()->GetMap()->GetCreature(MAKE_NEW_GUID(wpGuid, VISUAL_WAYPOINT, HIGHGUID_UNIT)))
+                if (Creature* wpCreature = handler->GetSession()->GetPlayer()->GetMap()->GetCreature(ObjectGuid(HIGHGUID_UNIT, VISUAL_WAYPOINT, wpGuid)))
                 {
                     wpCreature->CombatStop();
                     wpCreature->DeleteFromDB();
@@ -664,7 +664,7 @@ public:
                 // Respawn the owner of the waypoints
                 if (wpGuid != 0)
                 {
-                    if (Creature* wpCreature = map->GetCreature(MAKE_NEW_GUID(wpGuid, VISUAL_WAYPOINT, HIGHGUID_UNIT)))
+                    if (Creature* wpCreature = map->GetCreature(ObjectGuid(HIGHGUID_UNIT, VISUAL_WAYPOINT, wpGuid)))
                     {
                         wpCreature->CombatStop();
                         wpCreature->DeleteFromDB();
@@ -848,7 +848,7 @@ public:
                 {
                     Field* fields = result2->Fetch();
                     uint32 wpguid = fields[0].GetUInt32();
-                    Creature* creature = handler->GetSession()->GetPlayer()->GetMap()->GetCreature(MAKE_NEW_GUID(wpguid, VISUAL_WAYPOINT, HIGHGUID_UNIT));
+                    Creature* creature = handler->GetSession()->GetPlayer()->GetMap()->GetCreature(ObjectGuid(HIGHGUID_UNIT, VISUAL_WAYPOINT, wpguid));
 
                     if (!creature)
                     {
@@ -1053,7 +1053,7 @@ public:
             {
                 Field* fields = result->Fetch();
                 uint32 guid = fields[0].GetUInt32();
-                Creature* creature = handler->GetSession()->GetPlayer()->GetMap()->GetCreature(MAKE_NEW_GUID(guid, VISUAL_WAYPOINT, HIGHGUID_UNIT));
+                Creature* creature = handler->GetSession()->GetPlayer()->GetMap()->GetCreature(ObjectGuid(HIGHGUID_UNIT, VISUAL_WAYPOINT, guid));
                 if (!creature)
                 {
                     handler->PSendSysMessage(LANG_WAYPOINT_NOTREMOVED, guid);
diff --git a/src/server/scripts/EasternKingdoms/AlteracValley/boss_balinda.cpp b/src/server/scripts/EasternKingdoms/AlteracValley/boss_balinda.cpp
index 651e487522d..c8717a73f16 100644
--- a/src/server/scripts/EasternKingdoms/AlteracValley/boss_balinda.cpp
+++ b/src/server/scripts/EasternKingdoms/AlteracValley/boss_balinda.cpp
@@ -65,7 +65,7 @@ public:
 
         void Initialize()
         {
-            WaterElementalGUID = 0;
+            WaterElementalGUID.Clear();
             HasCastIceblock = false;
         }
 
@@ -177,7 +177,7 @@ public:
     private:
         EventMap events;
         SummonList summons;
-        uint64 WaterElementalGUID;
+        ObjectGuid WaterElementalGUID;
         bool HasCastIceblock;
     };
 
diff --git a/src/server/scripts/EasternKingdoms/BaradinHold/boss_alizabal.cpp b/src/server/scripts/EasternKingdoms/BaradinHold/boss_alizabal.cpp
index 52eac77cd46..62d12a94c54 100644
--- a/src/server/scripts/EasternKingdoms/BaradinHold/boss_alizabal.cpp
+++ b/src/server/scripts/EasternKingdoms/BaradinHold/boss_alizabal.cpp
@@ -68,7 +68,7 @@ class at_alizabal_intro : public AreaTriggerScript
         bool OnTrigger(Player* player, AreaTriggerEntry const* /*areaTrigger*/)
         {
             if (InstanceScript* instance = player->GetInstanceScript())
-                if (Creature* alizabal = ObjectAccessor::GetCreature(*player, instance->GetData64(DATA_ALIZABAL)))
+                if (Creature* alizabal = ObjectAccessor::GetCreature(*player, instance->GetGuidData(DATA_ALIZABAL)))
                     alizabal->AI()->DoAction(ACTION_INTRO);
             return true;
         }
diff --git a/src/server/scripts/EasternKingdoms/BaradinHold/boss_occuthar.cpp b/src/server/scripts/EasternKingdoms/BaradinHold/boss_occuthar.cpp
index ca2679b042a..9c203ac2395 100644
--- a/src/server/scripts/EasternKingdoms/BaradinHold/boss_occuthar.cpp
+++ b/src/server/scripts/EasternKingdoms/BaradinHold/boss_occuthar.cpp
@@ -166,7 +166,7 @@ class npc_eyestalk : public CreatureScript
             void IsSummonedBy(Unit* /*summoner*/) override
             {
                 // player is the spellcaster so register summon manually
-                if (Creature* occuthar = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_OCCUTHAR)))
+                if (Creature* occuthar = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_OCCUTHAR)))
                     occuthar->AI()->JustSummoned(me);
             }
 
@@ -324,7 +324,7 @@ class spell_occuthar_eyes_of_occuthar_vehicle : public SpellScriptLoader
             {
                 Position pos = GetHitUnit()->GetPosition();
 
-                if (Creature* occuthar = ObjectAccessor::GetCreature(*GetCaster(), GetCaster()->GetInstanceScript()->GetData64(DATA_OCCUTHAR)))
+                if (Creature* occuthar = ObjectAccessor::GetCreature(*GetCaster(), GetCaster()->GetInstanceScript()->GetGuidData(DATA_OCCUTHAR)))
                 {
                     if (Creature* creature = occuthar->SummonCreature(NPC_EYE_OF_OCCUTHAR, pos))
                         creature->CastSpell(GetHitUnit(), SPELL_GAZE_OF_OCCUTHAR, false);
diff --git a/src/server/scripts/EasternKingdoms/BaradinHold/instance_baradin_hold.cpp b/src/server/scripts/EasternKingdoms/BaradinHold/instance_baradin_hold.cpp
index 0f9102a2485..8f523b7bfac 100644
--- a/src/server/scripts/EasternKingdoms/BaradinHold/instance_baradin_hold.cpp
+++ b/src/server/scripts/EasternKingdoms/BaradinHold/instance_baradin_hold.cpp
@@ -39,10 +39,6 @@ class instance_baradin_hold: public InstanceMapScript
                 SetHeaders(DataHeader);
                 SetBossNumber(EncounterCount);
                 LoadDoorData(doorData);
-
-                ArgalothGUID = 0;
-                OccutharGUID = 0;
-                AlizabalGUID = 0;
             }
 
             void OnCreatureCreate(Creature* creature) override
@@ -73,7 +69,7 @@ class instance_baradin_hold: public InstanceMapScript
                 }
             }
 
-            uint64 GetData64(uint32 data) const override
+            ObjectGuid GetGuidData(uint32 data) const override
             {
                 switch (data)
                 {
@@ -87,7 +83,7 @@ class instance_baradin_hold: public InstanceMapScript
                         break;
                 }
 
-                return 0;
+                return ObjectGuid::Empty;
             }
 
             void OnGameObjectRemove(GameObject* go) override
@@ -103,9 +99,9 @@ class instance_baradin_hold: public InstanceMapScript
             }
 
         protected:
-            uint64 ArgalothGUID;
-            uint64 OccutharGUID;
-            uint64 AlizabalGUID;
+            ObjectGuid ArgalothGUID;
+            ObjectGuid OccutharGUID;
+            ObjectGuid AlizabalGUID;
         };
 
         InstanceScript* GetInstanceScript(InstanceMap* map) const
diff --git a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/blackrock_depths.cpp b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/blackrock_depths.cpp
index 51ca327738b..08b773bc61a 100644
--- a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/blackrock_depths.cpp
+++ b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/blackrock_depths.cpp
@@ -38,10 +38,10 @@ public:
             else
                 instance->SetData(TYPE_LYCEUM, IN_PROGRESS);
             // If used brazier open linked doors (North or South)
-            if (go->GetGUID() == instance->GetData64(DATA_SF_BRAZIER_N))
-                instance->HandleGameObject(instance->GetData64(DATA_GOLEM_DOOR_N), true);
-            else if (go->GetGUID() == instance->GetData64(DATA_SF_BRAZIER_S))
-                instance->HandleGameObject(instance->GetData64(DATA_GOLEM_DOOR_S), true);
+            if (go->GetGUID() == instance->GetGuidData(DATA_SF_BRAZIER_N))
+                instance->HandleGameObject(instance->GetGuidData(DATA_GOLEM_DOOR_N), true);
+            else if (go->GetGUID() == instance->GetGuidData(DATA_SF_BRAZIER_S))
+                instance->HandleGameObject(instance->GetGuidData(DATA_GOLEM_DOOR_S), true);
         }
         return false;
     }
@@ -138,9 +138,9 @@ public:
             MobDeath_Timer = 0;
 
             for (uint8 i = 0; i < MAX_NPC_AMOUNT; ++i)
-                RingMobGUID[i] = 0;
+                RingMobGUID[i].Clear();
 
-            RingBossGUID = 0;
+            RingBossGUID.Clear();
 
             CanWalk = false;
         }
@@ -154,8 +154,8 @@ public:
         uint8 MobCount;
         uint32 MobDeath_Timer;
 
-        uint64 RingMobGUID[4];
-        uint64 RingBossGUID;
+        ObjectGuid RingMobGUID[4];
+        ObjectGuid RingBossGUID;
 
         bool CanWalk;
 
@@ -222,7 +222,7 @@ public:
 
         void HandleGameObject(uint32 id, bool open)
         {
-            instance->HandleGameObject(instance->GetData64(id), open);
+            instance->HandleGameObject(instance->GetGuidData(id), open);
         }
 
         void UpdateAI(uint32 diff) override
@@ -238,7 +238,7 @@ public:
                         Creature* boss = ObjectAccessor::GetCreature(*me, RingBossGUID);
                         if (boss && !boss->IsAlive() && boss->isDead())
                         {
-                            RingBossGUID = 0;
+                            RingBossGUID.Clear();
                             Event_Timer = 5000;
                             MobDeath_Timer = 0;
                             return;
@@ -251,7 +251,7 @@ public:
                         Creature* mob = ObjectAccessor::GetCreature(*me, RingMobGUID[i]);
                         if (mob && !mob->IsAlive() && mob->isDead())
                         {
-                            RingMobGUID[i] = 0;
+                            RingMobGUID[i].Clear();
                             --MobCount;
 
                             //seems all are gone, so set timer to continue and discontinue this
@@ -1277,7 +1277,7 @@ public:
 
         void DoGo(uint32 id, uint32 state)
         {
-            if (GameObject* go = instance->instance->GetGameObject(instance->GetData64(id)))
+            if (GameObject* go = instance->instance->GetGameObject(instance->GetGuidData(id)))
                 go->SetGoState((GOState)state);
         }
 
@@ -1324,7 +1324,7 @@ public:
                     DoGo(DATA_GO_BAR_KEG_TRAP, 0);               //doesn't work very well, leaving code here for future
                     //spell by trap has effect61, this indicate the bar go hostile
 
-                    if (Unit* tmp = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_PHALANX)))
+                    if (Unit* tmp = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_PHALANX)))
                         tmp->setFaction(14);
 
                     //for later, this event(s) has alot more to it.
diff --git a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/boss_emperor_dagran_thaurissan.cpp b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/boss_emperor_dagran_thaurissan.cpp
index cec29bcd4d1..4b2434c73c9 100644
--- a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/boss_emperor_dagran_thaurissan.cpp
+++ b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/boss_emperor_dagran_thaurissan.cpp
@@ -70,7 +70,7 @@ class boss_emperor_dagran_thaurissan : public CreatureScript
 
             void JustDied(Unit* /*killer*/) override
             {
-                if (Creature* moira = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_MOIRA)))
+                if (Creature* moira = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_MOIRA)))
                 {
                     moira->AI()->EnterEvadeMode();
                     moira->setFaction(35);
diff --git a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/boss_magmus.cpp b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/boss_magmus.cpp
index e6bbbaa73a9..3230a700810 100644
--- a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/boss_magmus.cpp
+++ b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/boss_magmus.cpp
@@ -96,7 +96,7 @@ class boss_magmus : public CreatureScript
             void JustDied(Unit* /*killer*/) override
             {
                 if (InstanceScript* instance = me->GetInstanceScript())
-                    instance->HandleGameObject(instance->GetData64(DATA_THRONE_DOOR), true);
+                    instance->HandleGameObject(instance->GetGuidData(DATA_THRONE_DOOR), true);
             }
 
         private:
diff --git a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/boss_tomb_of_seven.cpp b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/boss_tomb_of_seven.cpp
index 77a8c68d28e..6706713698d 100644
--- a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/boss_tomb_of_seven.cpp
+++ b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/boss_tomb_of_seven.cpp
@@ -76,7 +76,7 @@ public:
                 if (InstanceScript* instance = creature->GetInstanceScript())
                 {
                     //are 5 minutes expected? go template may have data to despawn when used at quest
-                    instance->DoRespawnGameObject(instance->GetData64(DATA_GO_CHALICE), MINUTE*5);
+                    instance->DoRespawnGameObject(instance->GetGuidData(DATA_GO_CHALICE), MINUTE*5);
                 }
                 break;
         }
@@ -139,7 +139,7 @@ class boss_doomrel : public CreatureScript
                     creature->AI()->AttackStart(player);
                     InstanceScript* instance = creature->GetInstanceScript();
                     if (instance)
-                        instance->SetData64(DATA_EVENSTARTER, player->GetGUID());
+                        instance->SetGuidData(DATA_EVENSTARTER, player->GetGUID());
                     break;
             }
             return true;
@@ -202,7 +202,7 @@ class boss_doomrel : public CreatureScript
             {
                 ScriptedAI::EnterEvadeMode();
 
-                _instance->SetData64(DATA_EVENSTARTER, 0);
+                _instance->SetGuidData(DATA_EVENSTARTER, ObjectGuid::Empty);
             }
 
             void JustDied(Unit* /*killer*/) override
diff --git a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/instance_blackrock_depths.cpp b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/instance_blackrock_depths.cpp
index 67219a2990a..22999c221dd 100644
--- a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/instance_blackrock_depths.cpp
+++ b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockDepths/instance_blackrock_depths.cpp
@@ -81,37 +81,37 @@ public:
         uint32 encounter[MAX_ENCOUNTER];
         std::string str_data;
 
-        uint64 EmperorGUID;
-        uint64 PhalanxGUID;
-        uint64 MagmusGUID;
-        uint64 MoiraGUID;
-
-        uint64 GoArena1GUID;
-        uint64 GoArena2GUID;
-        uint64 GoArena3GUID;
-        uint64 GoArena4GUID;
-        uint64 GoShadowLockGUID;
-        uint64 GoShadowMechGUID;
-        uint64 GoShadowGiantGUID;
-        uint64 GoShadowDummyGUID;
-        uint64 GoBarKegGUID;
-        uint64 GoBarKegTrapGUID;
-        uint64 GoBarDoorGUID;
-        uint64 GoTombEnterGUID;
-        uint64 GoTombExitGUID;
-        uint64 GoLyceumGUID;
-        uint64 GoSFSGUID;
-        uint64 GoSFNGUID;
-        uint64 GoGolemNGUID;
-        uint64 GoGolemSGUID;
-        uint64 GoThroneGUID;
-        uint64 GoChestGUID;
-        uint64 GoSpectralChaliceGUID;
+        ObjectGuid EmperorGUID;
+        ObjectGuid PhalanxGUID;
+        ObjectGuid MagmusGUID;
+        ObjectGuid MoiraGUID;
+
+        ObjectGuid GoArena1GUID;
+        ObjectGuid GoArena2GUID;
+        ObjectGuid GoArena3GUID;
+        ObjectGuid GoArena4GUID;
+        ObjectGuid GoShadowLockGUID;
+        ObjectGuid GoShadowMechGUID;
+        ObjectGuid GoShadowGiantGUID;
+        ObjectGuid GoShadowDummyGUID;
+        ObjectGuid GoBarKegGUID;
+        ObjectGuid GoBarKegTrapGUID;
+        ObjectGuid GoBarDoorGUID;
+        ObjectGuid GoTombEnterGUID;
+        ObjectGuid GoTombExitGUID;
+        ObjectGuid GoLyceumGUID;
+        ObjectGuid GoSFSGUID;
+        ObjectGuid GoSFNGUID;
+        ObjectGuid GoGolemNGUID;
+        ObjectGuid GoGolemSGUID;
+        ObjectGuid GoThroneGUID;
+        ObjectGuid GoChestGUID;
+        ObjectGuid GoSpectralChaliceGUID;
 
         uint32 BarAleCount;
         uint32 GhostKillCount;
-        uint64 TombBossGUIDs[7];
-        uint64 TombEventStarterGUID;
+        ObjectGuid TombBossGUIDs[7];
+        ObjectGuid TombEventStarterGUID;
         uint32 TombTimer;
         uint32 TombEventCounter;
 
@@ -120,41 +120,10 @@ public:
             SetHeaders(DataHeader);
             memset(&encounter, 0, sizeof(encounter));
 
-            EmperorGUID = 0;
-            PhalanxGUID = 0;
-            MagmusGUID = 0;
-            MoiraGUID = 0;
-
-            GoArena1GUID = 0;
-            GoArena2GUID = 0;
-            GoArena3GUID = 0;
-            GoArena4GUID = 0;
-            GoShadowLockGUID = 0;
-            GoShadowMechGUID = 0;
-            GoShadowGiantGUID = 0;
-            GoShadowDummyGUID = 0;
-            GoBarKegGUID = 0;
-            GoBarKegTrapGUID = 0;
-            GoBarDoorGUID = 0;
-            GoTombEnterGUID = 0;
-            GoTombExitGUID = 0;
-            GoLyceumGUID = 0;
-            GoSFSGUID = 0;
-            GoSFNGUID = 0;
-            GoGolemNGUID = 0;
-            GoGolemSGUID = 0;
-            GoThroneGUID = 0;
-            GoChestGUID = 0;
-            GoSpectralChaliceGUID = 0;
-
             BarAleCount = 0;
             GhostKillCount = 0;
-            TombEventStarterGUID = 0;
             TombTimer = TIMER_TOMBOFTHESEVEN;
             TombEventCounter = 0;
-
-            for (uint8 i = 0; i < 7; ++i)
-                TombBossGUIDs[i] = 0;
         }
 
         void OnCreatureCreate(Creature* creature) override
@@ -174,7 +143,7 @@ public:
             case NPC_MAGMUS:
                 MagmusGUID = creature->GetGUID();
                 if (!creature->IsAlive())
-                    HandleGameObject(GetData64(DATA_THRONE_DOOR), true); // if Magmus is dead open door to last boss
+                    HandleGameObject(GetGuidData(DATA_THRONE_DOOR), true); // if Magmus is dead open door to last boss
                 break;
             }
         }
@@ -198,9 +167,9 @@ public:
             case GO_TOMB_EXIT:
                 GoTombExitGUID = go->GetGUID();
                 if (GhostKillCount >= 7)
-                    HandleGameObject(0, true, go);
+                    HandleGameObject(ObjectGuid::Empty, true, go);
                 else
-                    HandleGameObject(0, false, go);
+                    HandleGameObject(ObjectGuid::Empty, false, go);
                 break;
             case GO_LYCEUM: GoLyceumGUID = go->GetGUID(); break;
             case GO_SF_S: GoSFSGUID = go->GetGUID(); break;
@@ -213,9 +182,9 @@ public:
             }
         }
 
-        void SetData64(uint32 type, uint64 data) override
+        void SetGuidData(uint32 type, ObjectGuid data) override
         {
-            TC_LOG_DEBUG("scripts", "Instance Blackrock Depths: SetData64 update (Type: %u Data " UI64FMTD ")", type, data);
+            TC_LOG_DEBUG("scripts", "Instance Blackrock Depths: SetGuidData update (Type: %u Data %s)", type, data.ToString().c_str());
 
             switch (type)
             {
@@ -301,7 +270,7 @@ public:
             return 0;
         }
 
-        uint64 GetData64(uint32 data) const override
+        ObjectGuid GetGuidData(uint32 data) const override
         {
             switch (data)
             {
@@ -340,7 +309,7 @@ public:
             case DATA_GO_CHALICE:
                 return GoSpectralChaliceGUID;
             }
-            return 0;
+            return ObjectGuid::Empty;
         }
 
         std::string GetSaveData() override
@@ -409,7 +378,7 @@ public:
                 }
             }
             GhostKillCount = 0;
-            TombEventStarterGUID = 0;
+            TombEventStarterGUID.Clear();
             TombEventCounter = 0;
             TombTimer = TIMER_TOMBOFTHESEVEN;
             SetData(TYPE_TOMB_OF_SEVEN, NOT_STARTED);
@@ -427,7 +396,7 @@ public:
             DoRespawnGameObject(GoChestGUID, DAY);
             HandleGameObject(GoTombExitGUID, true);//event done, open exit door
             HandleGameObject(GoTombEnterGUID, true);//event done, open entrance door
-            TombEventStarterGUID = 0;
+            TombEventStarterGUID.Clear();
             SetData(TYPE_TOMB_OF_SEVEN, DONE);
         }
         void Update(uint32 diff) override
diff --git a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockSpire/boss_pyroguard_emberseer.cpp b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockSpire/boss_pyroguard_emberseer.cpp
index 2bd43e7283c..92906009b9a 100644
--- a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockSpire/boss_pyroguard_emberseer.cpp
+++ b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockSpire/boss_pyroguard_emberseer.cpp
@@ -104,10 +104,10 @@ public:
                     break;
                 case 2:
                    // Close these two doors on Blackhand Incarcerators aggro
-                   if (GameObject* door1 = me->GetMap()->GetGameObject(instance->GetData64(GO_EMBERSEER_IN)))
+                   if (GameObject* door1 = me->GetMap()->GetGameObject(instance->GetGuidData(GO_EMBERSEER_IN)))
                        if (door1->GetGoState() == GO_STATE_ACTIVE)
                            door1->SetGoState(GO_STATE_READY);
-                   if (GameObject* door2 = me->GetMap()->GetGameObject(instance->GetData64(GO_DOORS)))
+                   if (GameObject* door2 = me->GetMap()->GetGameObject(instance->GetGuidData(GO_DOORS)))
                        if (door2->GetGoState() == GO_STATE_ACTIVE)
                            door2->SetGoState(GO_STATE_READY);
                     break;
@@ -166,33 +166,33 @@ public:
        void OpenDoors(bool Boss_Killed)
        {
            // These two doors reopen on reset or boss kill
-           if (GameObject* door1 = me->GetMap()->GetGameObject(instance->GetData64(GO_EMBERSEER_IN)))
+           if (GameObject* door1 = me->GetMap()->GetGameObject(instance->GetGuidData(GO_EMBERSEER_IN)))
                door1->SetGoState(GO_STATE_ACTIVE);
-           if (GameObject* door2 = me->GetMap()->GetGameObject(instance->GetData64(GO_DOORS)))
+           if (GameObject* door2 = me->GetMap()->GetGameObject(instance->GetGuidData(GO_DOORS)))
                door2->SetGoState(GO_STATE_ACTIVE);
 
            // This door opens on boss kill
            if (Boss_Killed)
-               if (GameObject* door3 = me->GetMap()->GetGameObject(instance->GetData64(GO_EMBERSEER_OUT)))
+               if (GameObject* door3 = me->GetMap()->GetGameObject(instance->GetGuidData(GO_EMBERSEER_OUT)))
                     door3->SetGoState(GO_STATE_ACTIVE);
        }
 
         void UpdateRunes(GOState state)
         {
             // update all runes
-            if (GameObject* rune1 = me->GetMap()->GetGameObject(instance->GetData64(GO_EMBERSEER_RUNE_1)))
+            if (GameObject* rune1 = me->GetMap()->GetGameObject(instance->GetGuidData(GO_EMBERSEER_RUNE_1)))
                 rune1->SetGoState(state);
-            if (GameObject* rune2 = me->GetMap()->GetGameObject(instance->GetData64(GO_EMBERSEER_RUNE_2)))
+            if (GameObject* rune2 = me->GetMap()->GetGameObject(instance->GetGuidData(GO_EMBERSEER_RUNE_2)))
                 rune2->SetGoState(state);
-            if (GameObject* rune3 = me->GetMap()->GetGameObject(instance->GetData64(GO_EMBERSEER_RUNE_3)))
+            if (GameObject* rune3 = me->GetMap()->GetGameObject(instance->GetGuidData(GO_EMBERSEER_RUNE_3)))
                 rune3->SetGoState(state);
-            if (GameObject* rune4 = me->GetMap()->GetGameObject(instance->GetData64(GO_EMBERSEER_RUNE_4)))
+            if (GameObject* rune4 = me->GetMap()->GetGameObject(instance->GetGuidData(GO_EMBERSEER_RUNE_4)))
                 rune4->SetGoState(state);
-            if (GameObject* rune5 = me->GetMap()->GetGameObject(instance->GetData64(GO_EMBERSEER_RUNE_5)))
+            if (GameObject* rune5 = me->GetMap()->GetGameObject(instance->GetGuidData(GO_EMBERSEER_RUNE_5)))
                 rune5->SetGoState(state);
-            if (GameObject* rune6 = me->GetMap()->GetGameObject(instance->GetData64(GO_EMBERSEER_RUNE_6)))
+            if (GameObject* rune6 = me->GetMap()->GetGameObject(instance->GetGuidData(GO_EMBERSEER_RUNE_6)))
                 rune6->SetGoState(state);
-            if (GameObject* rune7 = me->GetMap()->GetGameObject(instance->GetData64(GO_EMBERSEER_RUNE_7)))
+            if (GameObject* rune7 = me->GetMap()->GetGameObject(instance->GetGuidData(GO_EMBERSEER_RUNE_7)))
                 rune7->SetGoState(state);
         }
 
diff --git a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockSpire/boss_rend_blackhand.cpp b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockSpire/boss_rend_blackhand.cpp
index 94bf3e991f4..2018f12b613 100644
--- a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockSpire/boss_rend_blackhand.cpp
+++ b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockSpire/boss_rend_blackhand.cpp
@@ -167,16 +167,16 @@ public:
         boss_rend_blackhandAI(Creature* creature) : BossAI(creature, DATA_WARCHIEF_REND_BLACKHAND)
         {
             gythEvent = false;
-            victorGUID = 0;
-            portcullisGUID = 0;
+            victorGUID.Clear();
+            portcullisGUID.Clear();
         }
 
         void Reset() override
         {
             _Reset();
             gythEvent = false;
-            victorGUID = 0;
-            portcullisGUID = 0;
+            victorGUID.Clear();
+            portcullisGUID.Clear();
         }
 
         void EnterCombat(Unit* /*who*/) override
@@ -437,8 +437,8 @@ public:
 
         private:
             bool   gythEvent;
-            uint64 victorGUID;
-            uint64 portcullisGUID;
+            ObjectGuid victorGUID;
+            ObjectGuid portcullisGUID;
     };
 
     CreatureAI* GetAI(Creature* creature) const override
diff --git a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockSpire/instance_blackrock_spire.cpp b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockSpire/instance_blackrock_spire.cpp
index e95fb8da42e..34d524a5470 100644
--- a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockSpire/instance_blackrock_spire.cpp
+++ b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackrockSpire/instance_blackrock_spire.cpp
@@ -52,29 +52,6 @@ public:
         {
             SetHeaders(DataHeader);
             SetBossNumber(EncounterCount);
-            HighlordOmokk             = 0;
-            ShadowHunterVoshgajin     = 0;
-            WarMasterVoone            = 0;
-            MotherSmolderweb          = 0;
-            UrokDoomhowl              = 0;
-            QuartermasterZigris       = 0;
-            GizrultheSlavener         = 0;
-            Halycon                   = 0;
-            OverlordWyrmthalak        = 0;
-            PyroguardEmberseer        = 0;
-            WarchiefRendBlackhand     = 0;
-            Gyth                      = 0;
-            LordVictorNefarius        = 0;
-            TheBeast                  = 0;
-            GeneralDrakkisath         = 0;
-            go_emberseerin            = 0;
-            go_doors                  = 0;
-            go_emberseerout           = 0;
-            go_blackrockaltar         = 0;
-            go_portcullis_active      = 0;
-            go_portcullis_tobossrooms = 0;
-            memset(go_roomrunes, 0, sizeof(go_roomrunes));
-            memset(go_emberseerrunes, 0, sizeof(go_emberseerrunes));
         }
 
         void OnCreatureCreate(Creature* creature) override
@@ -145,97 +122,97 @@ public:
                 case GO_EMBERSEER_IN:
                     go_emberseerin = go->GetGUID();
                     if (GetBossState(DATA_DRAGONSPIRE_ROOM) == DONE)
-                        HandleGameObject(0, true, go);
+                        HandleGameObject(ObjectGuid::Empty, true, go);
                     break;
                 case GO_DOORS:
                     go_doors = go->GetGUID();
                     if (GetBossState(DATA_DRAGONSPIRE_ROOM) == DONE)
-                        HandleGameObject(0, true, go);
+                        HandleGameObject(ObjectGuid::Empty, true, go);
                     break;
                 case GO_EMBERSEER_OUT:
                     go_emberseerout = go->GetGUID();
                     if (GetBossState(DATA_PYROGAURD_EMBERSEER) == DONE)
-                        HandleGameObject(0, true, go);
+                        HandleGameObject(ObjectGuid::Empty, true, go);
                     break;
                 case GO_HALL_RUNE_1:
                     go_roomrunes[0] = go->GetGUID();
                     if (GetBossState(DATA_HALL_RUNE_1) == DONE)
-                        HandleGameObject(0, false, go);
+                        HandleGameObject(ObjectGuid::Empty, false, go);
                     break;
                 case GO_HALL_RUNE_2:
                     go_roomrunes[1] = go->GetGUID();
                     if (GetBossState(DATA_HALL_RUNE_2) == DONE)
-                        HandleGameObject(0, false, go);
+                        HandleGameObject(ObjectGuid::Empty, false, go);
                     break;
                 case GO_HALL_RUNE_3:
                     go_roomrunes[2] = go->GetGUID();
                     if (GetBossState(DATA_HALL_RUNE_3) == DONE)
-                        HandleGameObject(0, false, go);
+                        HandleGameObject(ObjectGuid::Empty, false, go);
                     break;
                 case GO_HALL_RUNE_4:
                     go_roomrunes[3] = go->GetGUID();
                     if (GetBossState(DATA_HALL_RUNE_4) == DONE)
-                        HandleGameObject(0, false, go);
+                        HandleGameObject(ObjectGuid::Empty, false, go);
                     break;
                 case GO_HALL_RUNE_5:
                     go_roomrunes[4] = go->GetGUID();
                     if (GetBossState(DATA_HALL_RUNE_5) == DONE)
-                        HandleGameObject(0, false, go);
+                        HandleGameObject(ObjectGuid::Empty, false, go);
                     break;
                 case GO_HALL_RUNE_6:
                     go_roomrunes[5] = go->GetGUID();
                     if (GetBossState(DATA_HALL_RUNE_6) == DONE)
-                        HandleGameObject(0, false, go);
+                        HandleGameObject(ObjectGuid::Empty, false, go);
                     break;
                 case GO_HALL_RUNE_7:
                     go_roomrunes[6] = go->GetGUID();
                     if (GetBossState(DATA_HALL_RUNE_7) == DONE)
-                        HandleGameObject(0, false, go);
+                        HandleGameObject(ObjectGuid::Empty, false, go);
                     break;
                 case GO_EMBERSEER_RUNE_1:
                     go_emberseerrunes[0] = go->GetGUID();
                     if (GetBossState(DATA_PYROGAURD_EMBERSEER) == DONE)
-                        HandleGameObject(0, false, go);
+                        HandleGameObject(ObjectGuid::Empty, false, go);
                     break;
                 case GO_EMBERSEER_RUNE_2:
                     go_emberseerrunes[1] = go->GetGUID();
                     if (GetBossState(DATA_PYROGAURD_EMBERSEER) == DONE)
-                        HandleGameObject(0, false, go);
+                        HandleGameObject(ObjectGuid::Empty, false, go);
                     break;
                 case GO_EMBERSEER_RUNE_3:
                     go_emberseerrunes[2] = go->GetGUID();
                     if (GetBossState(DATA_PYROGAURD_EMBERSEER) == DONE)
-                        HandleGameObject(0, false, go);
+                        HandleGameObject(ObjectGuid::Empty, false, go);
                     break;
                 case GO_EMBERSEER_RUNE_4:
                     go_emberseerrunes[3] = go->GetGUID();
                     if (GetBossState(DATA_PYROGAURD_EMBERSEER) == DONE)
-                        HandleGameObject(0, false, go);
+                        HandleGameObject(ObjectGuid::Empty, false, go);
                     break;
                 case GO_EMBERSEER_RUNE_5:
                     go_emberseerrunes[4] = go->GetGUID();
                     if (GetBossState(DATA_PYROGAURD_EMBERSEER) == DONE)
-                        HandleGameObject(0, false, go);
+                        HandleGameObject(ObjectGuid::Empty, false, go);
                     break;
                 case GO_EMBERSEER_RUNE_6:
                     go_emberseerrunes[5] = go->GetGUID();
                     if (GetBossState(DATA_PYROGAURD_EMBERSEER) == DONE)
-                        HandleGameObject(0, false, go);
+                        HandleGameObject(ObjectGuid::Empty, false, go);
                     break;
                 case GO_EMBERSEER_RUNE_7:
                     go_emberseerrunes[6] = go->GetGUID();
                     if (GetBossState(DATA_PYROGAURD_EMBERSEER) == DONE)
-                        HandleGameObject(0, false, go);
+                        HandleGameObject(ObjectGuid::Empty, false, go);
                     break;
                 case GO_PORTCULLIS_ACTIVE:
                     go_portcullis_active = go->GetGUID();
                     if (GetBossState(DATA_GYTH) == DONE)
-                        HandleGameObject(0, true, go);
+                        HandleGameObject(ObjectGuid::Empty, true, go);
                     break;
                 case GO_PORTCULLIS_TOBOSSROOMS:
                     go_portcullis_tobossrooms = go->GetGUID();
                     if (GetBossState(DATA_GYTH) == DONE)
-                        HandleGameObject(0, true, go);
+                        HandleGameObject(ObjectGuid::Empty, true, go);
                     break;
                 default:
                     break;
@@ -309,7 +286,7 @@ public:
             }
         }
 
-        uint64 GetData64(uint32 type) const override
+        ObjectGuid GetGuidData(uint32 type) const override
         {
             switch (type)
             {
@@ -382,7 +359,7 @@ public:
                 default:
                     break;
             }
-            return 0;
+            return ObjectGuid::Empty;
         }
 
         void Update(uint32 diff) override
@@ -459,7 +436,7 @@ public:
 
                 if (!_mobAlive && rune->GetGoState() == GO_STATE_ACTIVE)
                 {
-                    HandleGameObject(0, false, rune);
+                    HandleGameObject(ObjectGuid::Empty, false, rune);
 
                     switch (rune->GetEntry())
                     {
@@ -496,38 +473,38 @@ public:
             {
                 SetBossState(DATA_DRAGONSPIRE_ROOM, DONE);
                 if (GameObject* door1 = instance->GetGameObject(go_emberseerin))
-                    HandleGameObject(0, true, door1);
+                    HandleGameObject(ObjectGuid::Empty, true, door1);
                 if (GameObject* door2 = instance->GetGameObject(go_doors))
-                    HandleGameObject(0, true, door2);
+                    HandleGameObject(ObjectGuid::Empty, true, door2);
             }
         }
 
         protected:
             EventMap Events;
-            uint64 HighlordOmokk;
-            uint64 ShadowHunterVoshgajin;
-            uint64 WarMasterVoone;
-            uint64 MotherSmolderweb;
-            uint64 UrokDoomhowl;
-            uint64 QuartermasterZigris;
-            uint64 GizrultheSlavener;
-            uint64 Halycon;
-            uint64 OverlordWyrmthalak;
-            uint64 PyroguardEmberseer;
-            uint64 WarchiefRendBlackhand;
-            uint64 Gyth;
-            uint64 LordVictorNefarius;
-            uint64 TheBeast;
-            uint64 GeneralDrakkisath;
-            uint64 go_emberseerin;
-            uint64 go_doors;
-            uint64 go_emberseerout;
-            uint64 go_blackrockaltar;
-            uint64 go_roomrunes[7];
-            uint64 go_emberseerrunes[7];
-            uint64 runecreaturelist[7][5];
-            uint64 go_portcullis_active;
-            uint64 go_portcullis_tobossrooms;
+            ObjectGuid HighlordOmokk;
+            ObjectGuid ShadowHunterVoshgajin;
+            ObjectGuid WarMasterVoone;
+            ObjectGuid MotherSmolderweb;
+            ObjectGuid UrokDoomhowl;
+            ObjectGuid QuartermasterZigris;
+            ObjectGuid GizrultheSlavener;
+            ObjectGuid Halycon;
+            ObjectGuid OverlordWyrmthalak;
+            ObjectGuid PyroguardEmberseer;
+            ObjectGuid WarchiefRendBlackhand;
+            ObjectGuid Gyth;
+            ObjectGuid LordVictorNefarius;
+            ObjectGuid TheBeast;
+            ObjectGuid GeneralDrakkisath;
+            ObjectGuid go_emberseerin;
+            ObjectGuid go_doors;
+            ObjectGuid go_emberseerout;
+            ObjectGuid go_blackrockaltar;
+            ObjectGuid go_roomrunes[7];
+            ObjectGuid go_emberseerrunes[7];
+            ObjectGuid runecreaturelist[7][5];
+            ObjectGuid go_portcullis_active;
+            ObjectGuid go_portcullis_tobossrooms;
     };
 
     InstanceScript* GetInstanceScript(InstanceMap* map) const override
diff --git a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingLair/boss_razorgore.cpp b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingLair/boss_razorgore.cpp
index b83cc4694ab..2efea4ae30c 100644
--- a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingLair/boss_razorgore.cpp
+++ b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingLair/boss_razorgore.cpp
@@ -175,7 +175,7 @@ public:
     {
         if (InstanceScript* instance = go->GetInstanceScript())
             if (instance->GetData(DATA_EGG_EVENT) != DONE)
-                if (Creature* razor = ObjectAccessor::GetCreature(*go, instance->GetData64(DATA_RAZORGORE_THE_UNTAMED)))
+                if (Creature* razor = ObjectAccessor::GetCreature(*go, instance->GetGuidData(DATA_RAZORGORE_THE_UNTAMED)))
                 {
                     razor->Attack(player, true);
                     player->CastSpell(razor, SPELL_MINDCONTROL);
diff --git a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingLair/boss_vaelastrasz.cpp b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingLair/boss_vaelastrasz.cpp
index 49e6faa340b..22a33ba4b6c 100644
--- a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingLair/boss_vaelastrasz.cpp
+++ b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingLair/boss_vaelastrasz.cpp
@@ -78,7 +78,7 @@ public:
 
         void Initialize()
         {
-            PlayerGUID = 0;
+            PlayerGUID.Clear();
             HasYelled = false;
         }
 
@@ -231,7 +231,7 @@ public:
         }
 
         private:
-            uint64 PlayerGUID;
+            ObjectGuid PlayerGUID;
             bool HasYelled;
     };
 
diff --git a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingLair/instance_blackwing_lair.cpp b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingLair/instance_blackwing_lair.cpp
index 8cb3c37a7a2..ad395ebe497 100644
--- a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingLair/instance_blackwing_lair.cpp
+++ b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingLair/instance_blackwing_lair.cpp
@@ -60,25 +60,6 @@ public:
             // Razorgore
             EggCount = 0;
             EggEvent = 0;
-            RazorgoreTheUntamedGUID = 0;
-            RazorgoreDoorGUID = 0;
-            // Vaelastrasz the Corrupt
-            VaelastraszTheCorruptGUID = 0;
-            VaelastraszDoorGUID = 0;
-            // Broodlord Lashlayer
-            BroodlordLashlayerGUID = 0;
-            BroodlordDoorGUID = 0;
-            // 3 Dragons
-            FiremawGUID = 0;
-            EbonrocGUID = 0;
-            FlamegorGUID = 0;
-            ChrommagusDoorGUID = 0;
-            // Chormaggus
-            ChromaggusGUID = 0;
-            NefarianDoorGUID = 0;
-            // Nefarian
-            LordVictorNefariusGUID = 0;
-            NefarianGUID = 0;
             SetBossNumber(EncounterCount);
         }
 
@@ -87,26 +68,6 @@ public:
             // Razorgore
             EggCount = 0;
             EggEvent = 0;
-            RazorgoreTheUntamedGUID = 0;
-            RazorgoreDoorGUID = 0;
-            EggList.clear();
-            // Vaelastrasz the Corrupt
-            VaelastraszTheCorruptGUID = 0;
-            VaelastraszDoorGUID = 0;
-            // Broodlord Lashlayer
-            BroodlordLashlayerGUID = 0;
-            BroodlordDoorGUID = 0;
-            // 3 Dragons
-            FiremawGUID = 0;
-            EbonrocGUID = 0;
-            FlamegorGUID = 0;
-            ChrommagusDoorGUID = 0;
-            // Chormaggus
-            ChromaggusGUID = 0;
-            NefarianDoorGUID = 0;
-            // Nefarian
-            LordVictorNefariusGUID = 0;
-            NefarianGUID = 0;
         }
 
         void OnCreatureCreate(Creature* creature) override
@@ -162,23 +123,23 @@ public:
                     break;
                 case 175946: // Door
                     RazorgoreDoorGUID = go->GetGUID();
-                    HandleGameObject(0, GetBossState(BOSS_RAZORGORE) == DONE, go);
+                    HandleGameObject(ObjectGuid::Empty, GetBossState(BOSS_RAZORGORE) == DONE, go);
                     break;
                 case 175185: // Door
                     VaelastraszDoorGUID = go->GetGUID();
-                    HandleGameObject(0, GetBossState(BOSS_VAELASTRAZ) == DONE, go);
+                    HandleGameObject(ObjectGuid::Empty, GetBossState(BOSS_VAELASTRAZ) == DONE, go);
                     break;
                 case 180424: // Door
                     BroodlordDoorGUID = go->GetGUID();
-                    HandleGameObject(0, GetBossState(BOSS_BROODLORD) == DONE, go);
+                    HandleGameObject(ObjectGuid::Empty, GetBossState(BOSS_BROODLORD) == DONE, go);
                     break;
                 case 185483: // Door
                     ChrommagusDoorGUID = go->GetGUID();
-                    HandleGameObject(0, GetBossState(BOSS_FIREMAW) == DONE && GetBossState(BOSS_EBONROC) == DONE && GetBossState(BOSS_FLAMEGOR) == DONE, go);
+                    HandleGameObject(ObjectGuid::Empty, GetBossState(BOSS_FIREMAW) == DONE && GetBossState(BOSS_EBONROC) == DONE && GetBossState(BOSS_FLAMEGOR) == DONE, go);
                     break;
                 case 181125: // Door
                     NefarianDoorGUID = go->GetGUID();
-                    HandleGameObject(0, GetBossState(BOSS_CHROMAGGUS) == DONE, go);
+                    HandleGameObject(ObjectGuid::Empty, GetBossState(BOSS_CHROMAGGUS) == DONE, go);
                     break;
             }
         }
@@ -200,7 +161,7 @@ public:
                     HandleGameObject(RazorgoreDoorGUID, state == DONE);
                     if (state == DONE)
                     {
-                        for (std::list<uint64>::const_iterator itr = EggList.begin(); itr != EggList.end(); ++itr)
+                        for (GuidList::const_iterator itr = EggList.begin(); itr != EggList.end(); ++itr)
                             if (GameObject* egg = instance->GetGameObject((*itr)))
                                 egg->SetLootState(GO_JUST_DEACTIVATED);
                     }
@@ -239,7 +200,7 @@ public:
             return true;
         }
 
-        uint64 GetData64(uint32 id) const override
+        ObjectGuid GetGuidData(uint32 id) const override
         {
             switch (id)
             {
@@ -254,7 +215,7 @@ public:
                 case DATA_NEFARIAN:               return NefarianGUID;
             }
 
-            return 0;
+            return ObjectGuid::Empty;
         }
 
         void SetData(uint32 type, uint32 data) override
@@ -340,31 +301,31 @@ public:
         // Razorgore
         uint8 EggCount;
         uint32 EggEvent;
-        uint64 RazorgoreTheUntamedGUID;
-        uint64 RazorgoreDoorGUID;
-        std::list<uint64> EggList;
+        ObjectGuid RazorgoreTheUntamedGUID;
+        ObjectGuid RazorgoreDoorGUID;
+        GuidList EggList;
 
         // Vaelastrasz the Corrupt
-        uint64 VaelastraszTheCorruptGUID;
-        uint64 VaelastraszDoorGUID;
+        ObjectGuid VaelastraszTheCorruptGUID;
+        ObjectGuid VaelastraszDoorGUID;
 
         // Broodlord Lashlayer
-        uint64 BroodlordLashlayerGUID;
-        uint64 BroodlordDoorGUID;
+        ObjectGuid BroodlordLashlayerGUID;
+        ObjectGuid BroodlordDoorGUID;
 
         // 3 Dragons
-        uint64 FiremawGUID;
-        uint64 EbonrocGUID;
-        uint64 FlamegorGUID;
-        uint64 ChrommagusDoorGUID;
+        ObjectGuid FiremawGUID;
+        ObjectGuid EbonrocGUID;
+        ObjectGuid FlamegorGUID;
+        ObjectGuid ChrommagusDoorGUID;
 
         // Chormaggus
-        uint64 ChromaggusGUID;
-        uint64 NefarianDoorGUID;
+        ObjectGuid ChromaggusGUID;
+        ObjectGuid NefarianDoorGUID;
 
         // Nefarian
-        uint64 LordVictorNefariusGUID;
-        uint64 NefarianGUID;
+        ObjectGuid LordVictorNefariusGUID;
+        ObjectGuid NefarianGUID;
     };
 
     InstanceScript* GetInstanceScript(InstanceMap* map) const override
diff --git a/src/server/scripts/EasternKingdoms/BlackrockMountain/MoltenCore/boss_golemagg.cpp b/src/server/scripts/EasternKingdoms/BlackrockMountain/MoltenCore/boss_golemagg.cpp
index c8b33e48852..cdfe00c767f 100644
--- a/src/server/scripts/EasternKingdoms/BlackrockMountain/MoltenCore/boss_golemagg.cpp
+++ b/src/server/scripts/EasternKingdoms/BlackrockMountain/MoltenCore/boss_golemagg.cpp
@@ -150,7 +150,7 @@ class npc_core_rager : public CreatureScript
                 if (HealthAbovePct(50) || !instance)
                     return;
 
-                if (Creature* pGolemagg = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_GOLEMAGG_THE_INCINERATOR)))
+                if (Creature* pGolemagg = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_GOLEMAGG_THE_INCINERATOR)))
                 {
                     if (pGolemagg->IsAlive())
                     {
diff --git a/src/server/scripts/EasternKingdoms/BlackrockMountain/MoltenCore/boss_ragnaros.cpp b/src/server/scripts/EasternKingdoms/BlackrockMountain/MoltenCore/boss_ragnaros.cpp
index 4a0e22b1ba8..58f38ec4267 100644
--- a/src/server/scripts/EasternKingdoms/BlackrockMountain/MoltenCore/boss_ragnaros.cpp
+++ b/src/server/scripts/EasternKingdoms/BlackrockMountain/MoltenCore/boss_ragnaros.cpp
@@ -153,7 +153,7 @@ class boss_ragnaros : public CreatureScript
                             break;
                         case EVENT_INTRO_4:
                             Talk(SAY_ARRIVAL5_RAG);
-                            if (Creature* executus = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_MAJORDOMO_EXECUTUS)))
+                            if (Creature* executus = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_MAJORDOMO_EXECUTUS)))
                                 me->Kill(executus);
                             break;
                         case EVENT_INTRO_5:
diff --git a/src/server/scripts/EasternKingdoms/BlackrockMountain/MoltenCore/instance_molten_core.cpp b/src/server/scripts/EasternKingdoms/BlackrockMountain/MoltenCore/instance_molten_core.cpp
index 800b6bb0edc..7de89b41b7f 100644
--- a/src/server/scripts/EasternKingdoms/BlackrockMountain/MoltenCore/instance_molten_core.cpp
+++ b/src/server/scripts/EasternKingdoms/BlackrockMountain/MoltenCore/instance_molten_core.cpp
@@ -45,9 +45,6 @@ class instance_molten_core : public InstanceMapScript
             {
                 SetHeaders(DataHeader);
                 SetBossNumber(MAX_ENCOUNTER);
-                _golemaggTheIncineratorGUID = 0;
-                _majordomoExecutusGUID = 0;
-                _cacheOfTheFirelordGUID = 0;
                 _executusSchedule = false;
                 _ragnarosAddDeaths = 0;
             }
@@ -107,7 +104,7 @@ class instance_molten_core : public InstanceMapScript
                 return 0;
             }
 
-            uint64 GetData64(uint32 type) const override
+            ObjectGuid GetGuidData(uint32 type) const override
             {
                 switch (type)
                 {
@@ -117,7 +114,7 @@ class instance_molten_core : public InstanceMapScript
                         return _majordomoExecutusGUID;
                 }
 
-                return 0;
+                return ObjectGuid::Empty;
             }
 
             bool SetBossState(uint32 bossId, EncounterState state) override
@@ -176,9 +173,9 @@ class instance_molten_core : public InstanceMapScript
             }
 
         private:
-            uint64 _golemaggTheIncineratorGUID;
-            uint64 _majordomoExecutusGUID;
-            uint64 _cacheOfTheFirelordGUID;
+            ObjectGuid _golemaggTheIncineratorGUID;
+            ObjectGuid _majordomoExecutusGUID;
+            ObjectGuid _cacheOfTheFirelordGUID;
             bool  _executusSchedule;
             uint8 _ragnarosAddDeaths;
         };
diff --git a/src/server/scripts/EasternKingdoms/Deadmines/boss_mr_smite.cpp b/src/server/scripts/EasternKingdoms/Deadmines/boss_mr_smite.cpp
index 7338620a8b2..029c3f08a8d 100644
--- a/src/server/scripts/EasternKingdoms/Deadmines/boss_mr_smite.cpp
+++ b/src/server/scripts/EasternKingdoms/Deadmines/boss_mr_smite.cpp
@@ -133,7 +133,7 @@ public:
                 ++uiHealth;
                 DoCastAOE(SPELL_SMITE_STOMP, false);
                 SetCombatMovement(false);
-                if (GameObject* go = ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_SMITE_CHEST)))
+                if (GameObject* go = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_SMITE_CHEST)))
                 {
                     me->GetMotionMaster()->Clear();
                     me->GetMotionMaster()->MovePoint(1, go->GetPositionX() - 3.0f, go->GetPositionY(), go->GetPositionZ());
diff --git a/src/server/scripts/EasternKingdoms/Deadmines/instance_deadmines.cpp b/src/server/scripts/EasternKingdoms/Deadmines/instance_deadmines.cpp
index 4869ffc4756..d7667b37e87 100644
--- a/src/server/scripts/EasternKingdoms/Deadmines/instance_deadmines.cpp
+++ b/src/server/scripts/EasternKingdoms/Deadmines/instance_deadmines.cpp
@@ -58,32 +58,24 @@ class instance_deadmines : public InstanceMapScript
         {
             instance_deadmines_InstanceMapScript(Map* map) : InstanceScript(map) { }
 
-            uint64 FactoryDoorGUID;
-            uint64 IronCladDoorGUID;
-            uint64 DefiasCannonGUID;
-            uint64 DoorLeverGUID;
-            uint64 DefiasPirate1GUID;
-            uint64 DefiasPirate2GUID;
-            uint64 DefiasCompanionGUID;
+            ObjectGuid FactoryDoorGUID;
+            ObjectGuid IronCladDoorGUID;
+            ObjectGuid DefiasCannonGUID;
+            ObjectGuid DoorLeverGUID;
+            ObjectGuid DefiasPirate1GUID;
+            ObjectGuid DefiasPirate2GUID;
+            ObjectGuid DefiasCompanionGUID;
 
             uint32 State;
             uint32 CannonBlast_Timer;
             uint32 PiratesDelay_Timer;
-            uint64 uiSmiteChestGUID;
+            ObjectGuid uiSmiteChestGUID;
 
             void Initialize() override
             {
                 SetHeaders(DataHeader);
-                FactoryDoorGUID = 0;
-                IronCladDoorGUID = 0;
-                DefiasCannonGUID = 0;
-                DoorLeverGUID = 0;
-                DefiasPirate1GUID = 0;
-                DefiasPirate2GUID = 0;
-                DefiasCompanionGUID = 0;
 
                 State = CANNON_NOT_USED;
-                uiSmiteChestGUID = 0;
             }
 
             virtual void Update(uint32 diff) override
@@ -227,7 +219,7 @@ class instance_deadmines : public InstanceMapScript
                 return 0;
             }
 
-            uint64 GetData64(uint32 data) const override
+            ObjectGuid GetGuidData(uint32 data) const override
             {
                 switch (data)
                 {
@@ -235,7 +227,7 @@ class instance_deadmines : public InstanceMapScript
                         return uiSmiteChestGUID;
                 }
 
-                return 0;
+                return ObjectGuid::Empty;
             }
         };
 
diff --git a/src/server/scripts/EasternKingdoms/Gnomeregan/gnomeregan.cpp b/src/server/scripts/EasternKingdoms/Gnomeregan/gnomeregan.cpp
index d009986651a..6d9d07fdd81 100644
--- a/src/server/scripts/EasternKingdoms/Gnomeregan/gnomeregan.cpp
+++ b/src/server/scripts/EasternKingdoms/Gnomeregan/gnomeregan.cpp
@@ -103,8 +103,8 @@ public:
         uint8 uiPhase;
         uint32 uiTimer;
 
-        std::list<uint64> SummonList;
-        std::list<uint64> GoSummonList;
+        GuidList SummonList;
+        GuidList GoSummonList;
 
         void Reset() override
         {
@@ -147,7 +147,7 @@ public:
             if (GoSummonList.empty())
                 return;
 
-            for (std::list<uint64>::const_iterator itr = GoSummonList.begin(); itr != GoSummonList.end(); ++itr)
+            for (GuidList::const_iterator itr = GoSummonList.begin(); itr != GoSummonList.end(); ++itr)
             {
                 if (GameObject* go = ObjectAccessor::GetGameObject(*me, *itr))
                 {
@@ -162,33 +162,33 @@ public:
                 }
             }
 
-            if (GameObject* go = ObjectAccessor::GetGameObject(*me, instance->GetData64(isRight ? DATA_GO_CAVE_IN_RIGHT : DATA_GO_CAVE_IN_LEFT)))
-                instance->HandleGameObject(0, false, go);
+            if (GameObject* go = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(isRight ? DATA_GO_CAVE_IN_RIGHT : DATA_GO_CAVE_IN_LEFT)))
+                instance->HandleGameObject(ObjectGuid::Empty, false, go);
         }
 
         void SetInFace(bool isRight)
         {
-            if (GameObject* go = ObjectAccessor::GetGameObject(*me, instance->GetData64(isRight ? DATA_GO_CAVE_IN_RIGHT : DATA_GO_CAVE_IN_LEFT)))
+            if (GameObject* go = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(isRight ? DATA_GO_CAVE_IN_RIGHT : DATA_GO_CAVE_IN_LEFT)))
                 me->SetFacingToObject(go);
         }
 
         void RestoreAll()
         {
-            if (GameObject* go = ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_GO_CAVE_IN_RIGHT)))
-                instance->HandleGameObject(0, false, go);
+            if (GameObject* go = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_GO_CAVE_IN_RIGHT)))
+                instance->HandleGameObject(ObjectGuid::Empty, false, go);
 
-            if (GameObject* go = ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_GO_CAVE_IN_LEFT)))
-                instance->HandleGameObject(0, false, go);
+            if (GameObject* go = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_GO_CAVE_IN_LEFT)))
+                instance->HandleGameObject(ObjectGuid::Empty, false, go);
 
             if (!GoSummonList.empty())
-                for (std::list<uint64>::const_iterator itr = GoSummonList.begin(); itr != GoSummonList.end(); ++itr)
+                for (GuidList::const_iterator itr = GoSummonList.begin(); itr != GoSummonList.end(); ++itr)
                 {
                     if (GameObject* go = ObjectAccessor::GetGameObject(*me, *itr))
                         go->RemoveFromWorld();
                 }
 
             if (!SummonList.empty())
-                for (std::list<uint64>::const_iterator itr = SummonList.begin(); itr != SummonList.end(); ++itr)
+                for (GuidList::const_iterator itr = SummonList.begin(); itr != SummonList.end(); ++itr)
                 {
                     if (Creature* summon = ObjectAccessor::GetCreature(*me, *itr))
                     {
@@ -398,8 +398,8 @@ public:
                             SetInFace(true);
                             Talk(SAY_BLASTMASTER_5);
                             Summon(1);
-                            if (GameObject* go = ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_GO_CAVE_IN_RIGHT)))
-                                instance->HandleGameObject(0, true, go);
+                            if (GameObject* go = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_GO_CAVE_IN_RIGHT)))
+                                instance->HandleGameObject(ObjectGuid::Empty, true, go);
                             NextStep(3000, true);
                             break;
                         case 7:
@@ -444,8 +444,8 @@ public:
                         case 16:
                             Talk(SAY_BLASTMASTER_14);
                             SetInFace(false);
-                            if (GameObject* go = ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_GO_CAVE_IN_LEFT)))
-                                instance->HandleGameObject(0, true, go);
+                            if (GameObject* go = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_GO_CAVE_IN_LEFT)))
+                                instance->HandleGameObject(ObjectGuid::Empty, true, go);
                             NextStep(2000, true);
                             break;
                         case 17:
diff --git a/src/server/scripts/EasternKingdoms/Gnomeregan/instance_gnomeregan.cpp b/src/server/scripts/EasternKingdoms/Gnomeregan/instance_gnomeregan.cpp
index f8e00fab682..9cd6afaca78 100644
--- a/src/server/scripts/EasternKingdoms/Gnomeregan/instance_gnomeregan.cpp
+++ b/src/server/scripts/EasternKingdoms/Gnomeregan/instance_gnomeregan.cpp
@@ -41,19 +41,14 @@ public:
 
         uint32 m_auiEncounter[MAX_ENCOUNTER];
 
-        uint64 uiCaveInLeftGUID;
-        uint64 uiCaveInRightGUID;
+        ObjectGuid uiCaveInLeftGUID;
+        ObjectGuid uiCaveInRightGUID;
 
-        uint64 uiBastmasterEmiShortfuseGUID;
+        ObjectGuid uiBastmasterEmiShortfuseGUID;
 
         void Initialize() override
         {
             memset(&m_auiEncounter, 0, sizeof(m_auiEncounter));
-
-            uiCaveInLeftGUID                = 0;
-            uiCaveInRightGUID               = 0;
-
-            uiBastmasterEmiShortfuseGUID    = 0;
         }
 
         void Load(const char* in) override
@@ -93,12 +88,12 @@ public:
                 case GO_CAVE_IN_LEFT:
                     uiCaveInLeftGUID = go->GetGUID();
                     if (m_auiEncounter[0] == DONE || m_auiEncounter[0] == NOT_STARTED)
-                        HandleGameObject(0, false, go);
+                        HandleGameObject(ObjectGuid::Empty, false, go);
                     break;
                 case GO_CAVE_IN_RIGHT:
                     uiCaveInRightGUID = go->GetGUID();
                     if (m_auiEncounter[0] == DONE || m_auiEncounter[0] == NOT_STARTED)
-                        HandleGameObject(0, false, go);
+                        HandleGameObject(ObjectGuid::Empty, false, go);
                     break;
             }
         }
@@ -124,7 +119,7 @@ public:
             return 0;
         }
 
-        uint64 GetData64(uint32 uiType) const override
+        ObjectGuid GetGuidData(uint32 uiType) const override
         {
             switch (uiType)
             {
@@ -133,7 +128,7 @@ public:
                 case DATA_NPC_BASTMASTER_EMI_SHORTFUSE: return uiBastmasterEmiShortfuseGUID;
             }
 
-            return 0;
+            return ObjectGuid::Empty;
         }
     };
 
diff --git a/src/server/scripts/EasternKingdoms/Karazhan/boss_midnight.cpp b/src/server/scripts/EasternKingdoms/Karazhan/boss_midnight.cpp
index bbddf0aa5f5..87f7ab5f07e 100644
--- a/src/server/scripts/EasternKingdoms/Karazhan/boss_midnight.cpp
+++ b/src/server/scripts/EasternKingdoms/Karazhan/boss_midnight.cpp
@@ -75,10 +75,10 @@ public:
         void Initialize()
         {
             ResetTimer = 0;
-            Midnight = 0;
+            Midnight.Clear();
         }
 
-        uint64 Midnight;
+        ObjectGuid Midnight;
         uint8 Phase;
         uint32 CleaveTimer;
         uint32 CurseTimer;
@@ -141,11 +141,11 @@ public:
         void Initialize()
         {
             Phase = 1;
-            Attumen = 0;
+            Attumen.Clear();
             Mount_Timer = 0;
         }
 
-        uint64 Attumen;
+        ObjectGuid Attumen;
         uint8 Phase;
         uint32 Mount_Timer;
 
@@ -242,7 +242,7 @@ public:
             Mount_Timer = 1000;
         }
 
-        void SetMidnight(Creature* pAttumen, uint64 value)
+        void SetMidnight(Creature* pAttumen, ObjectGuid value)
         {
             ENSURE_AI(boss_attumen::boss_attumenAI, pAttumen->AI())->Midnight = value;
         }
@@ -262,7 +262,7 @@ void boss_attumen::boss_attumenAI::UpdateAI(uint32 diff)
                 pMidnight->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
                 pMidnight->SetVisible(true);
             }
-            Midnight = 0;
+            Midnight.Clear();
             me->SetVisible(false);
             me->Kill(me);
         } else ResetTimer -= diff;
diff --git a/src/server/scripts/EasternKingdoms/Karazhan/boss_moroes.cpp b/src/server/scripts/EasternKingdoms/Karazhan/boss_moroes.cpp
index 5b4f25aea44..0d9827d390c 100644
--- a/src/server/scripts/EasternKingdoms/Karazhan/boss_moroes.cpp
+++ b/src/server/scripts/EasternKingdoms/Karazhan/boss_moroes.cpp
@@ -107,7 +107,6 @@ public:
         {
             Initialize();
             memset(AddId, 0, sizeof(AddId));
-            memset(AddGUID, 0, sizeof(AddGUID));
 
             instance = creature->GetInstanceScript();
         }
@@ -126,7 +125,7 @@ public:
 
         InstanceScript* instance;
 
-        uint64 AddGUID[4];
+        ObjectGuid AddGUID[4];
 
         uint32 Vanish_Timer;
         uint32 Blind_Timer;
@@ -339,13 +338,10 @@ struct boss_moroes_guestAI : public ScriptedAI
 {
     InstanceScript* instance;
 
-    uint64 GuestGUID[4];
+    ObjectGuid GuestGUID[4];
 
     boss_moroes_guestAI(Creature* creature) : ScriptedAI(creature)
     {
-        for (uint8 i = 0; i < 4; ++i)
-            GuestGUID[i] = 0;
-
         instance = creature->GetInstanceScript();
     }
 
@@ -356,15 +352,15 @@ struct boss_moroes_guestAI : public ScriptedAI
 
     void AcquireGUID()
     {
-        if (Creature* Moroes = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_MOROES)))
+        if (Creature* Moroes = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_MOROES)))
             for (uint8 i = 0; i < 4; ++i)
-                if (uint64 GUID = ENSURE_AI(boss_moroes::boss_moroesAI, Moroes->AI())->AddGUID[i])
+                if (ObjectGuid GUID = ENSURE_AI(boss_moroes::boss_moroesAI, Moroes->AI())->AddGUID[i])
                     GuestGUID[i] = GUID;
     }
 
     Unit* SelectGuestTarget()
     {
-        uint64 TempGUID = GuestGUID[rand32() % 4];
+        ObjectGuid TempGUID = GuestGUID[rand32() % 4];
         if (TempGUID)
         {
             Unit* unit = ObjectAccessor::GetUnit(*me, TempGUID);
diff --git a/src/server/scripts/EasternKingdoms/Karazhan/boss_netherspite.cpp b/src/server/scripts/EasternKingdoms/Karazhan/boss_netherspite.cpp
index a928413fea0..77e9e3fe86d 100644
--- a/src/server/scripts/EasternKingdoms/Karazhan/boss_netherspite.cpp
+++ b/src/server/scripts/EasternKingdoms/Karazhan/boss_netherspite.cpp
@@ -81,13 +81,6 @@ public:
             Initialize();
             instance = creature->GetInstanceScript();
 
-            for (int i=0; i<3; ++i)
-            {
-                PortalGUID[i] = 0;
-                BeamTarget[i] = 0;
-                BeamerGUID[i] = 0;
-            }
-
             PortalPhase = false;
             PhaseTimer = 0;
             EmpowermentTimer = 0;
@@ -112,9 +105,9 @@ public:
         uint32 NetherbreathTimer;
         uint32 EmpowermentTimer;
         uint32 PortalTimer; // timer for beam checking
-        uint64 PortalGUID[3]; // guid's of portals
-        uint64 BeamerGUID[3]; // guid's of auxiliary beaming portals
-        uint64 BeamTarget[3]; // guid's of portals' current targets
+        ObjectGuid PortalGUID[3]; // guid's of portals
+        ObjectGuid BeamerGUID[3]; // guid's of auxiliary beaming portals
+        ObjectGuid BeamTarget[3]; // guid's of portals' current targets
 
         bool IsBetween(WorldObject* u1, WorldObject* target, WorldObject* u2) // the in-line checker
         {
@@ -157,7 +150,7 @@ public:
             pos[GREEN_PORTAL] = ((r % 2) ? 0 : (r > 1 ? 2 : 1));
             pos[BLUE_PORTAL] = (r > 1 ? 1 : 2); // Blue Portal not on the left side (0)
 
-            for (int i=0; i<3; ++i)
+            for (int i = 0; i < 3; ++i)
                 if (Creature* portal = me->SummonCreature(PortalID[i], PortalCoord[pos[i]][0], PortalCoord[pos[i]][1], PortalCoord[pos[i]][2], 0, TEMPSUMMON_TIMED_DESPAWN, 60000))
                 {
                     PortalGUID[i] = portal->GetGUID();
@@ -173,14 +166,14 @@ public:
                     portal->DisappearAndDie();
                 if (Creature* portal = ObjectAccessor::GetCreature(*me, BeamerGUID[i]))
                     portal->DisappearAndDie();
-                PortalGUID[i] = 0;
-                BeamTarget[i] = 0;
+                PortalGUID[i].Clear();
+                BeamTarget[i].Clear();
             }
         }
 
         void UpdatePortals() // Here we handle the beams' behavior
         {
-            for (int j=0; j<3; ++j) // j = color
+            for (int j = 0; j < 3; ++j) // j = color
                 if (Creature* portal = ObjectAccessor::GetCreature(*me, PortalGUID[j]))
                 {
                     // the one who's been cast upon before
@@ -198,9 +191,9 @@ public:
                             Player* p = i->GetSource();
                             if (p && p->IsAlive() // alive
                                 && (!target || target->GetDistance2d(portal)>p->GetDistance2d(portal)) // closer than current best
-                                && !p->HasAura(PlayerDebuff[j], 0) // not exhausted
-                                && !p->HasAura(PlayerBuff[(j+1)%3], 0) // not on another beam
-                                && !p->HasAura(PlayerBuff[(j+2)%3], 0)
+                                && !p->HasAura(PlayerDebuff[j]) // not exhausted
+                                && !p->HasAura(PlayerBuff[(j + 1) % 3]) // not on another beam
+                                && !p->HasAura(PlayerBuff[(j + 2) % 3])
                                 && IsBetween(me, p, portal)) // on the beam
                                 target = p;
                         }
@@ -220,7 +213,7 @@ public:
                         {
                             beamer->CastSpell(target, PortalBeam[j], false);
                             beamer->DisappearAndDie();
-                            BeamerGUID[j] = 0;
+                            BeamerGUID[j].Clear();
                         }
                         // create new one and start beaming on the target
                         if (Creature* beamer = portal->SummonCreature(PortalID[j], portal->GetPositionX(), portal->GetPositionY(), portal->GetPositionZ(), portal->GetOrientation(), TEMPSUMMON_TIMED_DESPAWN, 60000))
@@ -264,7 +257,7 @@ public:
 
         void HandleDoors(bool open) // Massive Door switcher
         {
-            if (GameObject* Door = ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_GO_MASSIVE_DOOR) ))
+            if (GameObject* Door = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_GO_MASSIVE_DOOR) ))
                 Door->SetGoState(open ? GO_STATE_ACTIVE : GO_STATE_READY);
         }
 
diff --git a/src/server/scripts/EasternKingdoms/Karazhan/boss_nightbane.cpp b/src/server/scripts/EasternKingdoms/Karazhan/boss_nightbane.cpp
index 7ce11653567..619e3c9cd15 100644
--- a/src/server/scripts/EasternKingdoms/Karazhan/boss_nightbane.cpp
+++ b/src/server/scripts/EasternKingdoms/Karazhan/boss_nightbane.cpp
@@ -159,8 +159,8 @@ public:
 
         void HandleTerraceDoors(bool open)
         {
-            instance->HandleGameObject(instance->GetData64(DATA_MASTERS_TERRACE_DOOR_1), open);
-            instance->HandleGameObject(instance->GetData64(DATA_MASTERS_TERRACE_DOOR_2), open);
+            instance->HandleGameObject(instance->GetGuidData(DATA_MASTERS_TERRACE_DOOR_1), open);
+            instance->HandleGameObject(instance->GetGuidData(DATA_MASTERS_TERRACE_DOOR_2), open);
         }
 
         void EnterCombat(Unit* /*who*/) override
diff --git a/src/server/scripts/EasternKingdoms/Karazhan/boss_prince_malchezaar.cpp b/src/server/scripts/EasternKingdoms/Karazhan/boss_prince_malchezaar.cpp
index c09b349f143..06e4859a931 100644
--- a/src/server/scripts/EasternKingdoms/Karazhan/boss_prince_malchezaar.cpp
+++ b/src/server/scripts/EasternKingdoms/Karazhan/boss_prince_malchezaar.cpp
@@ -110,11 +110,11 @@ public:
     struct netherspite_infernalAI : public ScriptedAI
     {
         netherspite_infernalAI(Creature* creature) : ScriptedAI(creature),
-            HellfireTimer(0), CleanupTimer(0), malchezaar(0), point(NULL) { }
+            HellfireTimer(0), CleanupTimer(0), point(NULL) { }
 
         uint32 HellfireTimer;
         uint32 CleanupTimer;
-        uint64 malchezaar;
+        ObjectGuid malchezaar;
         InfernalPoint *point;
 
         void Reset() override { }
@@ -189,7 +189,6 @@ public:
             Initialize();
 
             instance = creature->GetInstanceScript();
-            memset(axes, 0, sizeof(axes));
         }
 
         void Initialize()
@@ -208,7 +207,7 @@ public:
 
             for (uint8 i = 0; i < 5; ++i)
             {
-                enfeeble_targets[i] = 0;
+                enfeeble_targets[i].Clear();
                 enfeeble_health[i] = 0;
             }
         }
@@ -225,12 +224,12 @@ public:
         uint32 AxesTargetSwitchTimer;
         uint32 InfernalCleanupTimer;
 
-        std::vector<uint64> infernals;
+        GuidVector infernals;
         std::vector<InfernalPoint*> positions;
 
-        uint64 axes[2];
-        uint64 enfeeble_targets[5];
-        uint32 enfeeble_health[5];
+        ObjectGuid axes[2];
+        ObjectGuid enfeeble_targets[5];
+        uint64 enfeeble_health[5];
 
         uint32 phase;
 
@@ -246,7 +245,7 @@ public:
             for (uint8 i = 0; i < TOTAL_INFERNAL_POINTS; ++i)
                 positions.push_back(&InfernalPoints[i]);
 
-            instance->HandleGameObject(instance->GetData64(DATA_GO_NETHER_DOOR), true);
+            instance->HandleGameObject(instance->GetGuidData(DATA_GO_NETHER_DOOR), true);
         }
 
         void KilledUnit(Unit* /*victim*/) override
@@ -266,20 +265,20 @@ public:
             for (uint8 i = 0; i < TOTAL_INFERNAL_POINTS; ++i)
                 positions.push_back(&InfernalPoints[i]);
 
-            instance->HandleGameObject(instance->GetData64(DATA_GO_NETHER_DOOR), true);
+            instance->HandleGameObject(instance->GetGuidData(DATA_GO_NETHER_DOOR), true);
         }
 
         void EnterCombat(Unit* /*who*/) override
         {
             Talk(SAY_AGGRO);
 
-            instance->HandleGameObject(instance->GetData64(DATA_GO_NETHER_DOOR), false); // Open the door leading further in
+            instance->HandleGameObject(instance->GetGuidData(DATA_GO_NETHER_DOOR), false); // Open the door leading further in
         }
 
         void InfernalCleanup()
         {
             //Infernal Cleanup
-            for (std::vector<uint64>::const_iterator itr = infernals.begin(); itr != infernals.end(); ++itr)
+            for (GuidVector::const_iterator itr = infernals.begin(); itr != infernals.end(); ++itr)
                 if (Unit* pInfernal = ObjectAccessor::GetUnit(*me, *itr))
                     if (pInfernal->IsAlive())
                     {
@@ -297,7 +296,7 @@ public:
                 Unit* axe = ObjectAccessor::GetUnit(*me, axes[i]);
                 if (axe && axe->IsAlive())
                     axe->Kill(axe);
-                axes[i] = 0;
+                axes[i].Clear();
             }
         }
 
@@ -350,7 +349,7 @@ public:
                 Unit* target = ObjectAccessor::GetUnit(*me, enfeeble_targets[i]);
                 if (target && target->IsAlive())
                     target->SetHealth(enfeeble_health[i]);
-                enfeeble_targets[i] = 0;
+                enfeeble_targets[i].Clear();
                 enfeeble_health[i] = 0;
             }
         }
@@ -398,7 +397,7 @@ public:
             if (me->HasUnitState(UNIT_STATE_STUNNED))      // While shifting to phase 2 malchezaar stuns himself
                 return;
 
-            if (me->GetVictim() && me->GetUInt64Value(UNIT_FIELD_TARGET) != me->EnsureVictim()->GetGUID())
+            if (me->GetVictim() && me->GetTarget() != me->EnsureVictim()->GetGUID())
                 me->SetTarget(me->EnsureVictim()->GetGUID());
 
             if (phase == 1)
@@ -576,11 +575,13 @@ public:
 
         void Cleanup(Creature* infernal, InfernalPoint *point)
         {
-            for (std::vector<uint64>::iterator itr = infernals.begin(); itr!= infernals.end(); ++itr)
-                if (*itr == infernal->GetGUID())
+            for (GuidVector::iterator itr = infernals.begin(); itr!= infernals.end(); ++itr)
             {
-                infernals.erase(itr);
-                break;
+                if (*itr == infernal->GetGUID())
+                {
+                    infernals.erase(itr);
+                    break;
+                }
             }
 
             positions.push_back(point);
diff --git a/src/server/scripts/EasternKingdoms/Karazhan/boss_shade_of_aran.cpp b/src/server/scripts/EasternKingdoms/Karazhan/boss_shade_of_aran.cpp
index c66f2b335c4..4cb0b61365d 100644
--- a/src/server/scripts/EasternKingdoms/Karazhan/boss_shade_of_aran.cpp
+++ b/src/server/scripts/EasternKingdoms/Karazhan/boss_shade_of_aran.cpp
@@ -134,7 +134,7 @@ public:
 
         uint32 FlameWreathTimer;
         uint32 FlameWreathCheckTime;
-        uint64 FlameWreathTarget[3];
+        ObjectGuid FlameWreathTarget[3];
         float FWTargPosX[3];
         float FWTargPosY[3];
 
@@ -155,7 +155,7 @@ public:
 
             // Not in progress
             instance->SetData(TYPE_ARAN, NOT_STARTED);
-            instance->HandleGameObject(instance->GetData64(DATA_GO_LIBRARY_DOOR), true);
+            instance->HandleGameObject(instance->GetGuidData(DATA_GO_LIBRARY_DOOR), true);
         }
 
         void KilledUnit(Unit* /*victim*/) override
@@ -168,7 +168,7 @@ public:
             Talk(SAY_DEATH);
 
             instance->SetData(TYPE_ARAN, DONE);
-            instance->HandleGameObject(instance->GetData64(DATA_GO_LIBRARY_DOOR), true);
+            instance->HandleGameObject(instance->GetGuidData(DATA_GO_LIBRARY_DOOR), true);
         }
 
         void EnterCombat(Unit* /*who*/) override
@@ -176,7 +176,7 @@ public:
             Talk(SAY_AGGRO);
 
             instance->SetData(TYPE_ARAN, IN_PROGRESS);
-            instance->HandleGameObject(instance->GetData64(DATA_GO_LIBRARY_DOOR), false);
+            instance->HandleGameObject(instance->GetGuidData(DATA_GO_LIBRARY_DOOR), false);
         }
 
         void FlameWreathEffect()
@@ -223,7 +223,7 @@ public:
             {
                 if (CloseDoorTimer <= diff)
                 {
-                    instance->HandleGameObject(instance->GetData64(DATA_GO_LIBRARY_DOOR), false);
+                    instance->HandleGameObject(instance->GetGuidData(DATA_GO_LIBRARY_DOOR), false);
                     CloseDoorTimer = 0;
                 } else CloseDoorTimer -= diff;
             }
@@ -393,9 +393,9 @@ public:
                         FlameWreathTimer = 20000;
                         FlameWreathCheckTime = 500;
 
-                        FlameWreathTarget[0] = 0;
-                        FlameWreathTarget[1] = 0;
-                        FlameWreathTarget[2] = 0;
+                        FlameWreathTarget[0].Clear();
+                        FlameWreathTarget[1].Clear();
+                        FlameWreathTarget[2].Clear();
 
                         FlameWreathEffect();
                         break;
@@ -465,7 +465,7 @@ public:
                         {
                             unit->CastSpell(unit, 20476, true, 0, 0, me->GetGUID());
                             unit->CastSpell(unit, 11027, true);
-                            FlameWreathTarget[i] = 0;
+                            FlameWreathTarget[i].Clear();
                         }
                     }
                     FlameWreathCheckTime = 500;
diff --git a/src/server/scripts/EasternKingdoms/Karazhan/boss_terestian_illhoof.cpp b/src/server/scripts/EasternKingdoms/Karazhan/boss_terestian_illhoof.cpp
index d27caea573e..be6d07571cf 100644
--- a/src/server/scripts/EasternKingdoms/Karazhan/boss_terestian_illhoof.cpp
+++ b/src/server/scripts/EasternKingdoms/Karazhan/boss_terestian_illhoof.cpp
@@ -100,7 +100,7 @@ public:
 
         void JustDied(Unit* /*killer*/) override
         {
-            Creature* Terestian = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_TERESTIAN));
+            Creature* Terestian = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_TERESTIAN));
             if (Terestian && Terestian->IsAlive())
                 DoCast(Terestian, SPELL_BROKEN_PACT, true);
         }
@@ -143,10 +143,10 @@ public:
 
         void Initialize()
         {
-            SacrificeGUID = 0;
+            SacrificeGUID.Clear();
         }
 
-        uint64 SacrificeGUID;
+        ObjectGuid SacrificeGUID;
 
         void Reset() override
         {
@@ -268,10 +268,8 @@ public:
     {
         boss_terestianAI(Creature* creature) : ScriptedAI(creature)
         {
-            Initialize();
-            for (uint8 i = 0; i < 2; ++i)
-                PortalGUID[i] = 0;
             instance = creature->GetInstanceScript();
+            Initialize();
         }
 
         void Initialize()
@@ -288,7 +286,7 @@ public:
 
         InstanceScript* instance;
 
-        uint64 PortalGUID[2];
+        ObjectGuid PortalGUID[2];
         uint8 PortalsCount;
 
         uint32 SacrificeTimer;
@@ -311,7 +309,7 @@ public:
                         pPortal->DespawnOrUnsummon();
                     }
 
-                    PortalGUID[i] = 0;
+                    PortalGUID[i].Clear();
                 }
             }
 
@@ -366,7 +364,7 @@ public:
                     if (Creature* pPortal = ObjectAccessor::GetCreature((*me), PortalGUID[i]))
                         pPortal->DespawnOrUnsummon();
 
-                    PortalGUID[i] = 0;
+                    PortalGUID[i].Clear();
                 }
             }
 
diff --git a/src/server/scripts/EasternKingdoms/Karazhan/bosses_opera.cpp b/src/server/scripts/EasternKingdoms/Karazhan/bosses_opera.cpp
index 7b51b61ba0a..63d543568fb 100644
--- a/src/server/scripts/EasternKingdoms/Karazhan/bosses_opera.cpp
+++ b/src/server/scripts/EasternKingdoms/Karazhan/bosses_opera.cpp
@@ -250,11 +250,11 @@ public:
 
         void Initialize()
         {
-            DorotheeGUID = 0;
+            DorotheeGUID.Clear();
             YipTimer = 10000;
         }
 
-        uint64 DorotheeGUID;
+        ObjectGuid DorotheeGUID;
         uint32 YipTimer;
 
         void Reset() override
@@ -710,10 +710,10 @@ public:
             Talk(SAY_CRONE_DEATH);
 
             instance->SetData(TYPE_OPERA, DONE);
-            instance->HandleGameObject(instance->GetData64(DATA_GO_STAGEDOORLEFT), true);
-            instance->HandleGameObject(instance->GetData64(DATA_GO_STAGEDOORRIGHT), true);
+            instance->HandleGameObject(instance->GetGuidData(DATA_GO_STAGEDOORLEFT), true);
+            instance->HandleGameObject(instance->GetGuidData(DATA_GO_STAGEDOORRIGHT), true);
 
-            if (GameObject* pSideEntrance = instance->instance->GetGameObject(instance->GetData64(DATA_GO_SIDE_ENTRANCE_DOOR)))
+            if (GameObject* pSideEntrance = instance->instance->GetGameObject(instance->GetGuidData(DATA_GO_SIDE_ENTRANCE_DOOR)))
                 pSideEntrance->RemoveFlag(GAMEOBJECT_FLAGS, GO_FLAG_LOCKED);
         }
 
@@ -868,7 +868,7 @@ public:
             FearTimer = urand(25000, 35000);
             SwipeTimer = 5000;
 
-            HoodGUID = 0;
+            HoodGUID.Clear();
             TempThreat = 0;
 
             IsChasing = false;
@@ -880,7 +880,7 @@ public:
         uint32 FearTimer;
         uint32 SwipeTimer;
 
-        uint64 HoodGUID;
+        ObjectGuid HoodGUID;
         float TempThreat;
 
         bool IsChasing;
@@ -910,10 +910,10 @@ public:
             DoPlaySoundToSet(me, SOUND_WOLF_DEATH);
 
             instance->SetData(TYPE_OPERA, DONE);
-            instance->HandleGameObject(instance->GetData64(DATA_GO_STAGEDOORLEFT), true);
-            instance->HandleGameObject(instance->GetData64(DATA_GO_STAGEDOORRIGHT), true);
+            instance->HandleGameObject(instance->GetGuidData(DATA_GO_STAGEDOORLEFT), true);
+            instance->HandleGameObject(instance->GetGuidData(DATA_GO_STAGEDOORRIGHT), true);
 
-            if (GameObject* pSideEntrance = instance->instance->GetGameObject(instance->GetData64(DATA_GO_SIDE_ENTRANCE_DOOR)))
+            if (GameObject* pSideEntrance = instance->instance->GetGameObject(instance->GetGuidData(DATA_GO_SIDE_ENTRANCE_DOOR)))
                 pSideEntrance->RemoveFlag(GAMEOBJECT_FLAGS, GO_FLAG_LOCKED);
         }
 
@@ -947,7 +947,7 @@ public:
 
                     if (Unit* target = ObjectAccessor::GetUnit(*me, HoodGUID))
                     {
-                        HoodGUID = 0;
+                        HoodGUID.Clear();
                         if (DoGetThreat(target))
                             DoModifyThreatPercent(target, -100);
                         me->AddThreat(target, TempThreat);
@@ -1073,7 +1073,7 @@ public:
 
         void Initialize()
         {
-            RomuloGUID = 0;
+            RomuloGUID.Clear();
             Phase = PHASE_JULIANNE;
 
             BlindingPassionTimer = 30000;
@@ -1093,7 +1093,7 @@ public:
         uint32 EntryYellTimer;
         uint32 AggroYellTimer;
 
-        uint64 RomuloGUID;
+        ObjectGuid RomuloGUID;
 
         uint32 Phase;
 
@@ -1160,9 +1160,9 @@ public:
             Talk(SAY_JULIANNE_DEATH02);
 
             instance->SetData(TYPE_OPERA, DONE);
-            instance->HandleGameObject(instance->GetData64(DATA_GO_STAGEDOORLEFT), true);
-            instance->HandleGameObject(instance->GetData64(DATA_GO_STAGEDOORRIGHT), true);
-            if (GameObject* pSideEntrance = instance->instance->GetGameObject(instance->GetData64(DATA_GO_SIDE_ENTRANCE_DOOR)))
+            instance->HandleGameObject(instance->GetGuidData(DATA_GO_STAGEDOORLEFT), true);
+            instance->HandleGameObject(instance->GetGuidData(DATA_GO_STAGEDOORRIGHT), true);
+            if (GameObject* pSideEntrance = instance->instance->GetGameObject(instance->GetGuidData(DATA_GO_SIDE_ENTRANCE_DOOR)))
                 pSideEntrance->RemoveFlag(GAMEOBJECT_FLAGS, GO_FLAG_LOCKED);
         }
 
@@ -1197,7 +1197,7 @@ public:
 
         void Initialize()
         {
-            JulianneGUID = 0;
+            JulianneGUID.Clear();
             Phase = PHASE_ROMULO;
 
             BackwardLungeTimer = 15000;
@@ -1212,7 +1212,7 @@ public:
 
         InstanceScript* instance;
 
-        uint64 JulianneGUID;
+        ObjectGuid JulianneGUID;
         uint32 Phase;
 
         uint32 EntryYellTimer;
@@ -1318,10 +1318,10 @@ public:
             Talk(SAY_ROMULO_DEATH);
 
             instance->SetData(TYPE_OPERA, DONE);
-            instance->HandleGameObject(instance->GetData64(DATA_GO_STAGEDOORLEFT), true);
-            instance->HandleGameObject(instance->GetData64(DATA_GO_STAGEDOORRIGHT), true);
+            instance->HandleGameObject(instance->GetGuidData(DATA_GO_STAGEDOORLEFT), true);
+            instance->HandleGameObject(instance->GetGuidData(DATA_GO_STAGEDOORRIGHT), true);
 
-            if (GameObject* pSideEntrance = instance->instance->GetGameObject(instance->GetData64(DATA_GO_SIDE_ENTRANCE_DOOR)))
+            if (GameObject* pSideEntrance = instance->instance->GetGameObject(instance->GetGuidData(DATA_GO_SIDE_ENTRANCE_DOOR)))
                 pSideEntrance->RemoveFlag(GAMEOBJECT_FLAGS, GO_FLAG_LOCKED);
         }
 
diff --git a/src/server/scripts/EasternKingdoms/Karazhan/instance_karazhan.cpp b/src/server/scripts/EasternKingdoms/Karazhan/instance_karazhan.cpp
index 8f6d142e22b..0d639df731a 100644
--- a/src/server/scripts/EasternKingdoms/Karazhan/instance_karazhan.cpp
+++ b/src/server/scripts/EasternKingdoms/Karazhan/instance_karazhan.cpp
@@ -64,21 +64,21 @@ public:
         uint32 m_uiOperaEvent;
         uint32 m_uiOzDeathCount;
 
-        uint64 m_uiCurtainGUID;
-        uint64 m_uiStageDoorLeftGUID;
-        uint64 m_uiStageDoorRightGUID;
-        uint64 m_uiKilrekGUID;
-        uint64 m_uiTerestianGUID;
-        uint64 m_uiMoroesGUID;
-        uint64 m_uiLibraryDoor;                                     // Door at Shade of Aran
-        uint64 m_uiMassiveDoor;                                     // Door at Netherspite
-        uint64 m_uiSideEntranceDoor;                                // Side Entrance
-        uint64 m_uiGamesmansDoor;                                   // Door before Chess
-        uint64 m_uiGamesmansExitDoor;                               // Door after Chess
-        uint64 m_uiNetherspaceDoor;                                // Door at Malchezaar
-        uint64 MastersTerraceDoor[2];
-        uint64 ImageGUID;
-        uint64 DustCoveredChest;
+        ObjectGuid m_uiCurtainGUID;
+        ObjectGuid m_uiStageDoorLeftGUID;
+        ObjectGuid m_uiStageDoorRightGUID;
+        ObjectGuid m_uiKilrekGUID;
+        ObjectGuid m_uiTerestianGUID;
+        ObjectGuid m_uiMoroesGUID;
+        ObjectGuid m_uiLibraryDoor;                                     // Door at Shade of Aran
+        ObjectGuid m_uiMassiveDoor;                                     // Door at Netherspite
+        ObjectGuid m_uiSideEntranceDoor;                                // Side Entrance
+        ObjectGuid m_uiGamesmansDoor;                                   // Door before Chess
+        ObjectGuid m_uiGamesmansExitDoor;                               // Door after Chess
+        ObjectGuid m_uiNetherspaceDoor;                                // Door at Malchezaar
+        ObjectGuid MastersTerraceDoor[2];
+        ObjectGuid ImageGUID;
+        ObjectGuid DustCoveredChest;
 
         void Initialize() override
         {
@@ -88,25 +88,6 @@ public:
             // 1 - OZ, 2 - HOOD, 3 - RAJ, this never gets altered.
             m_uiOperaEvent      = urand(1, 3);
             m_uiOzDeathCount    = 0;
-
-            m_uiCurtainGUID         = 0;
-            m_uiStageDoorLeftGUID   = 0;
-            m_uiStageDoorRightGUID  = 0;
-
-            m_uiKilrekGUID      = 0;
-            m_uiTerestianGUID   = 0;
-            m_uiMoroesGUID      = 0;
-
-            m_uiLibraryDoor         = 0;
-            m_uiMassiveDoor         = 0;
-            m_uiSideEntranceDoor    = 0;
-            m_uiGamesmansDoor       = 0;
-            m_uiGamesmansExitDoor   = 0;
-            m_uiNetherspaceDoor     = 0;
-            MastersTerraceDoor[0]= 0;
-            MastersTerraceDoor[1]= 0;
-            ImageGUID = 0;
-            DustCoveredChest    = 0;
         }
 
         bool IsEncounterInProgress() const override
@@ -183,7 +164,7 @@ public:
             }
         }
 
-         void SetData64(uint32 identifier, uint64 data) override
+         void SetGuidData(uint32 identifier, ObjectGuid data) override
          {
              switch (identifier)
              {
@@ -265,7 +246,7 @@ public:
             return 0;
         }
 
-        uint64 GetData64(uint32 uiData) const override
+        ObjectGuid GetGuidData(uint32 uiData) const override
         {
             switch (uiData)
             {
@@ -286,7 +267,7 @@ public:
                 case DATA_IMAGE_OF_MEDIVH:          return ImageGUID;
             }
 
-            return 0;
+            return ObjectGuid::Empty;
         }
 
         void Load(char const* chrIn)
diff --git a/src/server/scripts/EasternKingdoms/Karazhan/karazhan.cpp b/src/server/scripts/EasternKingdoms/Karazhan/karazhan.cpp
index 716b32601be..159035c6eb3 100644
--- a/src/server/scripts/EasternKingdoms/Karazhan/karazhan.cpp
+++ b/src/server/scripts/EasternKingdoms/Karazhan/karazhan.cpp
@@ -139,7 +139,7 @@ public:
 
         void Initialize()
         {
-            m_uiSpotlightGUID = 0;
+            m_uiSpotlightGUID.Clear();
 
             TalkCount = 0;
             TalkTimer = 2000;
@@ -150,7 +150,7 @@ public:
 
         InstanceScript* instance;
 
-        uint64 m_uiSpotlightGUID;
+        ObjectGuid m_uiSpotlightGUID;
 
         uint32 TalkCount;
         uint32 TalkTimer;
@@ -186,7 +186,7 @@ public:
             {
                 case 0:
                     DoCast(me, SPELL_TUXEDO, false);
-                    instance->DoUseDoorOrButton(instance->GetData64(DATA_GO_STAGEDOORLEFT));
+                    instance->DoUseDoorOrButton(instance->GetGuidData(DATA_GO_STAGEDOORLEFT));
                     break;
                 case 4:
                     TalkCount = 0;
@@ -202,12 +202,12 @@ public:
                     }
                     break;
                 case 8:
-                    instance->DoUseDoorOrButton(instance->GetData64(DATA_GO_STAGEDOORLEFT));
+                    instance->DoUseDoorOrButton(instance->GetGuidData(DATA_GO_STAGEDOORLEFT));
                     PerformanceReady = true;
                     break;
                 case 9:
                     PrepareEncounter();
-                    instance->DoUseDoorOrButton(instance->GetData64(DATA_GO_CURTAINS));
+                    instance->DoUseDoorOrButton(instance->GetGuidData(DATA_GO_CURTAINS));
                     break;
             }
         }
@@ -360,17 +360,17 @@ public:
             case GOSSIP_ACTION_INFO_DEF+3:
                 player->CLOSE_GOSSIP_MENU();
                 pBarnesAI->m_uiEventId = EVENT_OZ;
-                TC_LOG_INFO("scripts", "player (GUID " UI64FMTD ") manually set Opera event to EVENT_OZ", player->GetGUID());
+                TC_LOG_INFO("scripts", "player (%s) manually set Opera event to EVENT_OZ", player->GetGUID().ToString().c_str());
                 break;
             case GOSSIP_ACTION_INFO_DEF+4:
                 player->CLOSE_GOSSIP_MENU();
                 pBarnesAI->m_uiEventId = EVENT_HOOD;
-                TC_LOG_INFO("scripts", "player (GUID " UI64FMTD ") manually set Opera event to EVENT_HOOD", player->GetGUID());
+                TC_LOG_INFO("scripts", "player (%s) manually set Opera event to EVENT_HOOD", player->GetGUID().ToString().c_str());
                 break;
             case GOSSIP_ACTION_INFO_DEF+5:
                 player->CLOSE_GOSSIP_MENU();
                 pBarnesAI->m_uiEventId = EVENT_RAJ;
-                TC_LOG_INFO("scripts", "player (GUID " UI64FMTD ") manually set Opera event to EVENT_RAJ", player->GetGUID());
+                TC_LOG_INFO("scripts", "player (%s) manually set Opera event to EVENT_RAJ", player->GetGUID().ToString().c_str());
                 break;
         }
 
@@ -491,14 +491,14 @@ public:
 
         void Initialize()
         {
-            ArcanagosGUID = 0;
+            ArcanagosGUID.Clear();
             EventStarted = false;
             YellTimer = 0;
         }
 
         InstanceScript* instance;
 
-        uint64 ArcanagosGUID;
+        ObjectGuid ArcanagosGUID;
 
         uint32 YellTimer;
         uint32 Step;
@@ -511,9 +511,9 @@ public:
         {
             Initialize();
 
-            if (instance->GetData64(DATA_IMAGE_OF_MEDIVH) == 0)
+            if (instance->GetGuidData(DATA_IMAGE_OF_MEDIVH).IsEmpty())
             {
-                instance->SetData64(DATA_IMAGE_OF_MEDIVH, me->GetGUID());
+                instance->SetGuidData(DATA_IMAGE_OF_MEDIVH, me->GetGUID());
                 (*me).GetMotionMaster()->MovePoint(1, MedivPos[0], MedivPos[1], MedivPos[2]);
                 Step = 0;
             }
diff --git a/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_felblood_kaelthas.cpp b/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_felblood_kaelthas.cpp
index 1aafb32cef9..bae61f9b452 100644
--- a/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_felblood_kaelthas.cpp
+++ b/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_felblood_kaelthas.cpp
@@ -166,7 +166,7 @@ public:
             instance->SetBossState(DATA_KAELTHAS, DONE);
 
             // Enable the Translocation Orb Exit
-            if (GameObject* escapeOrb = ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_ESCAPE_ORB)))
+            if (GameObject* escapeOrb = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_ESCAPE_ORB)))
                 escapeOrb->RemoveFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
         }
 
@@ -253,7 +253,7 @@ public:
                     unit->CastSpell(unit, SPELL_GRAVITY_LAPSE_FLY, true, 0, 0, me->GetGUID());
                     // Use packet hack
                     WorldPacket data(SMSG_MOVE_SET_CAN_FLY, 12);
-                    data.append(unit->GetPackGUID());
+                    data << unit->GetPackGUID();
                     data << uint32(0);
                     unit->SendMessageToSet(&data, true);
                 }
@@ -273,7 +273,7 @@ public:
                     unit->RemoveAurasDueToSpell(SPELL_GRAVITY_LAPSE_DOT);
 
                     WorldPacket data(SMSG_MOVE_UNSET_CAN_FLY, 12);
-                    data.append(unit->GetPackGUID());
+                    data << unit->GetPackGUID();
                     data << uint32(0);
                     unit->SendMessageToSet(&data, true);
                 }
@@ -548,7 +548,7 @@ public:
                 me->ModifyAuraState(AURA_STATE_HEALTHLESS_35_PERCENT, false);
                 me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
                 me->ClearAllReactives();
-                me->SetTarget(0);
+                me->SetTarget(ObjectGuid::Empty);
                 me->GetMotionMaster()->Clear();
                 me->GetMotionMaster()->MoveIdle();
                 me->SetStandState(UNIT_STAND_STATE_DEAD);
diff --git a/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_priestess_delrissa.cpp b/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_priestess_delrissa.cpp
index cc2af3dcea5..9acf82c312e 100644
--- a/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_priestess_delrissa.cpp
+++ b/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_priestess_delrissa.cpp
@@ -119,7 +119,6 @@ public:
         {
             Initialize();
             instance = creature->GetInstanceScript();
-            memset(&m_auiLackeyGUID, 0, sizeof(m_auiLackeyGUID));
             LackeyEntryList.clear();
         }
 
@@ -138,7 +137,7 @@ public:
         InstanceScript* instance;
 
         std::vector<uint32> LackeyEntryList;
-        uint64 m_auiLackeyGUID[MAX_ACTIVE_LACKEY];
+        ObjectGuid m_auiLackeyGUID[MAX_ACTIVE_LACKEY];
 
         uint8 PlayersKilled;
 
@@ -361,7 +360,6 @@ struct boss_priestess_lackey_commonAI : public ScriptedAI
     {
         Initialize();
         instance = creature->GetInstanceScript();
-        memset(&m_auiLackeyGUIDs, 0, sizeof(m_auiLackeyGUIDs));
         AcquireGUIDs();
     }
 
@@ -378,7 +376,7 @@ struct boss_priestess_lackey_commonAI : public ScriptedAI
 
     InstanceScript* instance;
 
-    uint64 m_auiLackeyGUIDs[MAX_ACTIVE_LACKEY];
+    ObjectGuid m_auiLackeyGUIDs[MAX_ACTIVE_LACKEY];
     uint32 ResetThreatTimer;
 
     bool UsedPotion;
@@ -388,7 +386,7 @@ struct boss_priestess_lackey_commonAI : public ScriptedAI
         Initialize();
 
         // in case she is not alive and Reset was for some reason called, respawn her (most likely party wipe after killing her)
-        if (Creature* pDelrissa = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_DELRISSA)))
+        if (Creature* pDelrissa = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_DELRISSA)))
         {
             if (!pDelrissa->IsAlive())
                 pDelrissa->Respawn();
@@ -412,7 +410,7 @@ struct boss_priestess_lackey_commonAI : public ScriptedAI
             }
         }
 
-        if (Creature* pDelrissa = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_DELRISSA)))
+        if (Creature* pDelrissa = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_DELRISSA)))
         {
             if (pDelrissa->IsAlive() && !pDelrissa->GetVictim())
             {
@@ -424,7 +422,7 @@ struct boss_priestess_lackey_commonAI : public ScriptedAI
 
     void JustDied(Unit* /*killer*/) override
     {
-        Creature* pDelrissa = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_DELRISSA));
+        Creature* pDelrissa = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_DELRISSA));
         uint32 uiLackeyDeathCount = instance->GetData(DATA_DELRISSA_DEATH_COUNT);
 
         if (!pDelrissa)
@@ -453,13 +451,13 @@ struct boss_priestess_lackey_commonAI : public ScriptedAI
 
     void KilledUnit(Unit* victim) override
     {
-        if (Creature* Delrissa = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_DELRISSA)))
+        if (Creature* Delrissa = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_DELRISSA)))
             Delrissa->AI()->KilledUnit(victim);
     }
 
     void AcquireGUIDs()
     {
-        if (Creature* Delrissa = (ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_DELRISSA))))
+        if (Creature* Delrissa = (ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_DELRISSA))))
         {
             for (uint8 i = 0; i < MAX_ACTIVE_LACKEY; ++i)
                 m_auiLackeyGUIDs[i] = ENSURE_AI(boss_priestess_delrissa::boss_priestess_delrissaAI, Delrissa->AI())->m_auiLackeyGUID[i];
@@ -1054,7 +1052,6 @@ public:
         boss_garaxxasAI(Creature* creature) : boss_priestess_lackey_commonAI(creature)
         {
             Initialize();
-            m_uiPetGUID = 0;
         }
 
         void Initialize()
@@ -1067,7 +1064,7 @@ public:
             Freezing_Trap_Timer = 15000;
         }
 
-        uint64 m_uiPetGUID;
+        ObjectGuid m_uiPetGUID;
 
         uint32 Aimed_Shot_Timer;
         uint32 Shoot_Timer;
diff --git a/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_selin_fireheart.cpp b/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_selin_fireheart.cpp
index d34123c58b2..c186470f2d5 100644
--- a/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_selin_fireheart.cpp
+++ b/src/server/scripts/EasternKingdoms/MagistersTerrace/boss_selin_fireheart.cpp
@@ -71,7 +71,6 @@ class boss_selin_fireheart : public CreatureScript
         {
             boss_selin_fireheartAI(Creature* creature) : BossAI(creature, DATA_SELIN)
             {
-                CrystalGUID = 0;
                 _scheduledEvents = false;
             }
 
@@ -89,7 +88,7 @@ class boss_selin_fireheart : public CreatureScript
                 }
 
                 _Reset();
-                CrystalGUID = 0;
+                CrystalGUID.Clear();
                 _scheduledEvents = false;
             }
 
@@ -221,7 +220,7 @@ class boss_selin_fireheart : public CreatureScript
                             if (CrystalChosen && CrystalChosen->IsAlive())
                                 CrystalChosen->Kill(CrystalChosen);
 
-                            CrystalGUID = 0;
+                            CrystalGUID.Clear();
 
                             me->GetMotionMaster()->Clear();
                             me->GetMotionMaster()->MoveChase(me->GetVictim());
@@ -255,7 +254,7 @@ class boss_selin_fireheart : public CreatureScript
 
         private:
             std::list<Creature*> Crystals;
-            uint64 CrystalGUID;
+            ObjectGuid CrystalGUID;
             bool _scheduledEvents;
         };
 
@@ -278,7 +277,7 @@ class npc_fel_crystal : public CreatureScript
             {
                 if (InstanceScript* instance = me->GetInstanceScript())
                 {
-                    Creature* Selin = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SELIN));
+                    Creature* Selin = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SELIN));
                     if (Selin && Selin->IsAlive())
                         Selin->AI()->DoAction(ACTION_SWITCH_PHASE);
                 }
diff --git a/src/server/scripts/EasternKingdoms/MagistersTerrace/instance_magisters_terrace.cpp b/src/server/scripts/EasternKingdoms/MagistersTerrace/instance_magisters_terrace.cpp
index 01491c53f72..65fed52d998 100644
--- a/src/server/scripts/EasternKingdoms/MagistersTerrace/instance_magisters_terrace.cpp
+++ b/src/server/scripts/EasternKingdoms/MagistersTerrace/instance_magisters_terrace.cpp
@@ -50,12 +50,6 @@ class instance_magisters_terrace : public InstanceMapScript
                 LoadDoorData(doorData);
 
                 DelrissaDeathCount = 0;
-
-                SelinGUID          = 0;
-                DelrissaGUID       = 0;
-                EscapeOrbGUID      = 0;
-
-                memset(KaelStatue, 0, 2 * sizeof(uint64));
             }
 
             uint32 GetData(uint32 type) const override
@@ -162,7 +156,7 @@ class instance_magisters_terrace : public InstanceMapScript
                 return true;
             }
 
-            uint64 GetData64(uint32 type) const override
+            ObjectGuid GetGuidData(uint32 type) const override
             {
                 switch (type)
                 {
@@ -179,14 +173,14 @@ class instance_magisters_terrace : public InstanceMapScript
                     default:
                         break;
                 }
-                return 0;
+                return ObjectGuid::Empty;
             }
 
         protected:
-            uint64 SelinGUID;
-            uint64 DelrissaGUID;
-            uint64 KaelStatue[2];
-            uint64 EscapeOrbGUID;
+            ObjectGuid SelinGUID;
+            ObjectGuid DelrissaGUID;
+            ObjectGuid KaelStatue[2];
+            ObjectGuid EscapeOrbGUID;
             uint32 DelrissaDeathCount;
         };
 
diff --git a/src/server/scripts/EasternKingdoms/MagistersTerrace/magisters_terrace.cpp b/src/server/scripts/EasternKingdoms/MagistersTerrace/magisters_terrace.cpp
index a20f595183f..6cd14598a58 100644
--- a/src/server/scripts/EasternKingdoms/MagistersTerrace/magisters_terrace.cpp
+++ b/src/server/scripts/EasternKingdoms/MagistersTerrace/magisters_terrace.cpp
@@ -165,7 +165,7 @@ public:
                 if (Player* player = i->GetSource())
                 {
                     if (spell && spell->Effects[0].MiscValue)
-                        player->KilledMonsterCredit(spell->Effects[0].MiscValue, 0);
+                        player->KilledMonsterCredit(spell->Effects[0].MiscValue);
                 }
             }
         }
diff --git a/src/server/scripts/EasternKingdoms/ScarletEnclave/chapter1.cpp b/src/server/scripts/EasternKingdoms/ScarletEnclave/chapter1.cpp
index 6c48ee7f348..c01affd3012 100644
--- a/src/server/scripts/EasternKingdoms/ScarletEnclave/chapter1.cpp
+++ b/src/server/scripts/EasternKingdoms/ScarletEnclave/chapter1.cpp
@@ -107,7 +107,6 @@ public:
             if (!me->GetCurrentEquipmentId())
                 me->SetCurrentEquipmentId(me->GetOriginalEquipmentId());
 
-            playerGUID = 0;
             wait_timer = 0;
             anchorX = 0.f;
             anchorY = 0.f;
@@ -115,15 +114,15 @@ public:
 
         void Initialize()
         {
-            anchorGUID = 0;
+            anchorGUID.Clear();
             phase = PHASE_CHAINED;
         }
 
-        uint64 playerGUID;
+        ObjectGuid playerGUID;
         UnworthyInitiatePhase phase;
         uint32 wait_timer;
         float anchorX, anchorY;
-        uint64 anchorGUID;
+        ObjectGuid anchorGUID;
 
         EventMap events;
 
@@ -300,17 +299,17 @@ public:
 
     struct npc_unworthy_initiate_anchorAI : public PassiveAI
     {
-        npc_unworthy_initiate_anchorAI(Creature* creature) : PassiveAI(creature), prisonerGUID(0) { }
+        npc_unworthy_initiate_anchorAI(Creature* creature) : PassiveAI(creature) { }
 
-        uint64 prisonerGUID;
+        ObjectGuid prisonerGUID;
 
-        void SetGUID(uint64 guid, int32 /*id*/) override
+        void SetGUID(ObjectGuid guid, int32 /*id*/) override
         {
             if (!prisonerGUID)
                 prisonerGUID = guid;
         }
 
-        uint64 GetGUID(int32 /*id*/) const override
+        ObjectGuid GetGUID(int32 /*id*/) const override
         {
             return prisonerGUID;
         }
@@ -325,7 +324,7 @@ public:
     bool OnGossipHello(Player* player, GameObject* go) override
     {
         if (Creature* anchor = go->FindNearestCreature(29521, 15))
-            if (uint64 prisonerGUID = anchor->AI()->GetGUID())
+            if (ObjectGuid prisonerGUID = anchor->AI()->GetGUID())
                 if (Creature* prisoner = ObjectAccessor::GetCreature(*player, prisonerGUID))
                     ENSURE_AI(npc_unworthy_initiate::npc_unworthy_initiateAI, prisoner->AI())->EventStart(anchor, player);
 
@@ -421,7 +420,7 @@ class npc_eye_of_acherus : public CreatureScript
                         for (uint8 i = 0; i < MAX_MOVE_TYPE; ++i)
                             me->SetSpeed(UnitMoveType(i), owner->GetSpeedRate(UnitMoveType(i)), true);
 
-                        TalkToMap(TALK_CONTROL, owner);
+                        Talk(TALK_CONTROL, owner);
                     }
                     me->SetDisableGravity(false);
                     DoCast(me, SPELL_EYE_FLIGHT);
@@ -532,14 +531,14 @@ public:
 
         void Initialize()
         {
-            m_uiDuelerGUID = 0;
+            m_uiDuelerGUID.Clear();
             m_uiDuelTimer = 5000;
             m_bIsDuelInProgress = false;
             lose = false;
         }
 
         bool lose;
-        uint64 m_uiDuelerGUID;
+        ObjectGuid m_uiDuelerGUID;
         uint32 m_uiDuelTimer;
         bool m_bIsDuelInProgress;
 
@@ -655,7 +654,7 @@ class npc_dark_rider_of_acherus : public CreatureScript
                 PhaseTimer = 4000;
                 Phase = 0;
                 Intro = false;
-                TargetGUID = 0;
+                TargetGUID.Clear();
             }
 
             void Reset() override
@@ -716,7 +715,7 @@ class npc_dark_rider_of_acherus : public CreatureScript
             uint32 PhaseTimer;
             uint32 Phase;
             bool Intro;
-            uint64 TargetGUID;
+            ObjectGuid TargetGUID;
         };
 
         CreatureAI* GetAI(Creature* creature) const override
@@ -1010,7 +1009,7 @@ class npc_scarlet_miner_cart : public CreatureScript
 
         struct npc_scarlet_miner_cartAI : public PassiveAI
         {
-            npc_scarlet_miner_cartAI(Creature* creature) : PassiveAI(creature), _minerGUID(0), _playerGUID(0)
+            npc_scarlet_miner_cartAI(Creature* creature) : PassiveAI(creature)
             {
                 me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_IMMUNE_TO_PC);
                 me->SetDisplayId(me->GetCreatureTemplate()->Modelid1); // Modelid2 is a horse.
@@ -1028,7 +1027,7 @@ class npc_scarlet_miner_cart : public CreatureScript
             void SummonedCreatureDespawn(Creature* summon) override
             {
                 if (summon->GetEntry() == NPC_MINER)
-                    _minerGUID = 0;
+                    _minerGUID.Clear();
             }
 
             void DoAction(int32 /*param*/) override
@@ -1054,15 +1053,15 @@ class npc_scarlet_miner_cart : public CreatureScript
                 }
                 else
                 {
-                    _playerGUID = 0;
+                    _playerGUID.Clear();
                     if (Creature* miner = ObjectAccessor::GetCreature(*me, _minerGUID))
                         miner->DespawnOrUnsummon();
                 }
             }
 
         private:
-            uint64 _minerGUID;
-            uint64 _playerGUID;
+            ObjectGuid _minerGUID;
+            ObjectGuid _playerGUID;
         };
 
         CreatureAI* GetAI(Creature* creature) const override
@@ -1096,14 +1095,14 @@ class npc_scarlet_miner : public CreatureScript
 
             void Initialize()
             {
-                carGUID = 0;
+                carGUID.Clear();
                 IntroTimer = 0;
                 IntroPhase = 0;
             }
 
             uint32 IntroTimer;
             uint32 IntroPhase;
-            uint64 carGUID;
+            ObjectGuid carGUID;
 
             void Reset() override
             {
@@ -1148,7 +1147,7 @@ class npc_scarlet_miner : public CreatureScript
                 }
             }
 
-            void SetGUID(uint64 guid, int32 /*id = 0*/) override
+            void SetGUID(ObjectGuid guid, int32 /*id = 0*/) override
             {
                 InitWaypoint();
                 Start(false, false, guid);
diff --git a/src/server/scripts/EasternKingdoms/ScarletEnclave/chapter2.cpp b/src/server/scripts/EasternKingdoms/ScarletEnclave/chapter2.cpp
index ee624c4f6a5..fe433a6692d 100644
--- a/src/server/scripts/EasternKingdoms/ScarletEnclave/chapter2.cpp
+++ b/src/server/scripts/EasternKingdoms/ScarletEnclave/chapter2.cpp
@@ -60,12 +60,12 @@ public:
         {
             speechTimer = 0;
             speechCounter = 0;
-            playerGUID = 0;
+            playerGUID.Clear();
         }
 
         uint32 speechTimer;
         uint32 speechCounter;
-        uint64 playerGUID;
+        ObjectGuid playerGUID;
 
         void Reset() override
         {
@@ -223,7 +223,7 @@ public:
         {
             wave = 0;
             waveTimer = 3000;
-            valrothGUID = 0;
+            valrothGUID.Clear();
         }
 
         void Reset() override
@@ -357,7 +357,7 @@ public:
     private:
         uint8 wave;
         uint32 waveTimer;
-        uint64 valrothGUID;
+        ObjectGuid valrothGUID;
 
     };
 
@@ -642,12 +642,12 @@ public:
         {
             ExecuteSpeech_Timer = 0;
             ExecuteSpeech_Counter = 0;
-            PlayerGUID = 0;
+            PlayerGUID.Clear();
         }
 
         uint32 ExecuteSpeech_Timer;
         uint32 ExecuteSpeech_Counter;
-        uint64 PlayerGUID;
+        ObjectGuid PlayerGUID;
 
         void Reset() override
         {
diff --git a/src/server/scripts/EasternKingdoms/ScarletEnclave/chapter5.cpp b/src/server/scripts/EasternKingdoms/ScarletEnclave/chapter5.cpp
index f6757afd5bc..d67c28a3552 100644
--- a/src/server/scripts/EasternKingdoms/ScarletEnclave/chapter5.cpp
+++ b/src/server/scripts/EasternKingdoms/ScarletEnclave/chapter5.cpp
@@ -311,25 +311,6 @@ public:
     {
         npc_highlord_darion_mograineAI(Creature* creature) : npc_escortAI(creature)
         {
-            uiTirionGUID = 0;
-            uiAlexandrosGUID = 0;
-            uiDarionGUID = 0;
-            uiKorfaxGUID = 0;
-            uiMaxwellGUID = 0;
-            uiEligorGUID = 0;
-            uiRayneGUID = 0;
-            uiKoltiraGUID = 0;
-            uiOrbazGUID = 0;
-            uiThassarianGUID = 0;
-            uiLichKingGUID = 0;
-
-            memset(uiDefenderGUID, 0, sizeof(uiDefenderGUID));
-            memset(uiEarthshatterGUID, 0, sizeof(uiEarthshatterGUID));
-            memset(uiAbominationGUID, 0, sizeof(uiAbominationGUID));
-            memset(uiBehemothGUID, 0, sizeof(uiBehemothGUID));
-            memset(uiGhoulGUID, 0, sizeof(uiGhoulGUID));
-            memset(uiWarriorGUID, 0, sizeof(uiWarriorGUID));
-
             Reset();
         }
 
@@ -352,25 +333,25 @@ public:
         uint32 uiTargetcheck;
 
         // Dawn
-        uint64 uiTirionGUID;
-        uint64 uiAlexandrosGUID;
-        uint64 uiDarionGUID;
-        uint64 uiKorfaxGUID;
-        uint64 uiMaxwellGUID;
-        uint64 uiEligorGUID;
-        uint64 uiRayneGUID;
-        uint64 uiDefenderGUID[ENCOUNTER_DEFENDER_NUMBER];
-        uint64 uiEarthshatterGUID[ENCOUNTER_EARTHSHATTER_NUMBER];
+        ObjectGuid uiTirionGUID;
+        ObjectGuid uiAlexandrosGUID;
+        ObjectGuid uiDarionGUID;
+        ObjectGuid uiKorfaxGUID;
+        ObjectGuid uiMaxwellGUID;
+        ObjectGuid uiEligorGUID;
+        ObjectGuid uiRayneGUID;
+        ObjectGuid uiDefenderGUID[ENCOUNTER_DEFENDER_NUMBER];
+        ObjectGuid uiEarthshatterGUID[ENCOUNTER_EARTHSHATTER_NUMBER];
 
         // Death
-        uint64 uiKoltiraGUID;
-        uint64 uiOrbazGUID;
-        uint64 uiThassarianGUID;
-        uint64 uiLichKingGUID;
-        uint64 uiAbominationGUID[ENCOUNTER_ABOMINATION_NUMBER];
-        uint64 uiBehemothGUID[ENCOUNTER_BEHEMOTH_NUMBER];
-        uint64 uiGhoulGUID[ENCOUNTER_GHOUL_NUMBER];
-        uint64 uiWarriorGUID[ENCOUNTER_WARRIOR_NUMBER];
+        ObjectGuid uiKoltiraGUID;
+        ObjectGuid uiOrbazGUID;
+        ObjectGuid uiThassarianGUID;
+        ObjectGuid uiLichKingGUID;
+        ObjectGuid uiAbominationGUID[ENCOUNTER_ABOMINATION_NUMBER];
+        ObjectGuid uiBehemothGUID[ENCOUNTER_BEHEMOTH_NUMBER];
+        ObjectGuid uiGhoulGUID[ENCOUNTER_GHOUL_NUMBER];
+        ObjectGuid uiWarriorGUID[ENCOUNTER_WARRIOR_NUMBER];
 
         void Reset() override
         {
@@ -413,23 +394,23 @@ public:
                 if (Creature* temp = ObjectAccessor::GetCreature(*me, uiRayneGUID))
                     temp->setDeathState(JUST_DIED);
 
-                uiTirionGUID = 0;
-                uiKorfaxGUID = 0;
-                uiMaxwellGUID = 0;
-                uiEligorGUID = 0;
-                uiRayneGUID = 0;
+                uiTirionGUID.Clear();
+                uiKorfaxGUID.Clear();
+                uiMaxwellGUID.Clear();
+                uiEligorGUID.Clear();
+                uiRayneGUID.Clear();
 
                 for (uint8 i = 0; i < ENCOUNTER_DEFENDER_NUMBER; ++i)
                 {
                     if (Creature* temp = ObjectAccessor::GetCreature(*me, uiDefenderGUID[i]))
                         temp->setDeathState(JUST_DIED);
-                    uiDefenderGUID[i] = 0;
+                    uiDefenderGUID[i].Clear();
                 }
                 for (uint8 i = 0; i < ENCOUNTER_EARTHSHATTER_NUMBER; ++i)
                 {
                     if (Creature* temp = ObjectAccessor::GetCreature(*me, uiEarthshatterGUID[i]))
                         temp->setDeathState(JUST_DIED);
-                    uiEarthshatterGUID[i] = 0;
+                    uiEarthshatterGUID[i].Clear();
                 }
 
                 if (Creature* temp = ObjectAccessor::GetCreature(*me, uiKoltiraGUID))
@@ -441,33 +422,33 @@ public:
                 if (Creature* temp = ObjectAccessor::GetCreature(*me, uiLichKingGUID))
                     temp->Respawn();
 
-                uiKoltiraGUID = 0;
-                uiOrbazGUID = 0;
-                uiThassarianGUID = 0;
-                uiLichKingGUID = 0;
+                uiKoltiraGUID.Clear();
+                uiOrbazGUID.Clear();
+                uiThassarianGUID.Clear();
+                uiLichKingGUID.Clear();
                 for (uint8 i = 0; i < ENCOUNTER_ABOMINATION_NUMBER; ++i)
                 {
                     if (Creature* temp = ObjectAccessor::GetCreature(*me, uiAbominationGUID[i]))
                         temp->setDeathState(JUST_DIED);
-                    uiAbominationGUID[i] = 0;
+                    uiAbominationGUID[i].Clear();
                 }
                 for (uint8 i = 0; i < ENCOUNTER_BEHEMOTH_NUMBER; ++i)
                 {
                     if (Creature* temp = ObjectAccessor::GetCreature(*me, uiBehemothGUID[i]))
                         temp->setDeathState(JUST_DIED);
-                    uiBehemothGUID[i] = 0;
+                    uiBehemothGUID[i].Clear();
                 }
                 for (uint8 i = 0; i < ENCOUNTER_GHOUL_NUMBER; ++i)
                 {
                     if (Creature* temp = ObjectAccessor::GetCreature(*me, uiGhoulGUID[i]))
                         temp->setDeathState(JUST_DIED);
-                    uiGhoulGUID[i] = 0;
+                    uiGhoulGUID[i].Clear();
                 }
                 for (uint8 i = 0; i < ENCOUNTER_WARRIOR_NUMBER; ++i)
                 {
                     if (Creature* temp = ObjectAccessor::GetCreature(*me, uiWarriorGUID[i]))
                         temp->setDeathState(JUST_DIED);
-                    uiWarriorGUID[i] = 0;
+                    uiWarriorGUID[i].Clear();
                 }
             }
         }
@@ -552,18 +533,18 @@ public:
                     //Unit* pTirion = ObjectAccessor::GetCreature(*me, uiTirionGUID);
 
                     Talk(EMOTE_LIGHT_OF_DAWN05);
-                    if (me->HasAura(SPELL_THE_LIGHT_OF_DAWN, 0))
+                    if (me->HasAura(SPELL_THE_LIGHT_OF_DAWN))
                         me->RemoveAurasDueToSpell(SPELL_THE_LIGHT_OF_DAWN);
                     if (Creature* temp = ObjectAccessor::GetCreature(*me, uiKoltiraGUID))
                     {
-                        if (temp->HasAura(SPELL_THE_LIGHT_OF_DAWN, 0))
+                        if (temp->HasAura(SPELL_THE_LIGHT_OF_DAWN))
                             temp->RemoveAurasDueToSpell(SPELL_THE_LIGHT_OF_DAWN);
                         temp->SetWalk(true);
                         temp->GetMotionMaster()->MovePoint(0, LightofDawnLoc[19].x, LightofDawnLoc[19].y, LightofDawnLoc[19].z);
                     }
                     if (Creature* temp = ObjectAccessor::GetCreature(*me, uiThassarianGUID))
                     {
-                        if (temp->HasAura(SPELL_THE_LIGHT_OF_DAWN, 0))
+                        if (temp->HasAura(SPELL_THE_LIGHT_OF_DAWN))
                             temp->RemoveAurasDueToSpell(SPELL_THE_LIGHT_OF_DAWN);
                         temp->SetWalk(true);
                         temp->GetMotionMaster()->MovePoint(0, LightofDawnLoc[21].x, LightofDawnLoc[21].y, LightofDawnLoc[21].z);
@@ -1143,7 +1124,7 @@ public:
                             me->SummonGameObject(GO_LIGHT_OF_DAWN, 2283.896f, -5287.914f, 83.066f, 0, 0, 0, 0, 0, 30);
                             if (Creature* temp = ObjectAccessor::GetCreature(*me, uiTirionGUID))
                             {
-                                if (temp->HasAura(SPELL_REBIRTH_OF_THE_ASHBRINGER, 0))
+                                if (temp->HasAura(SPELL_REBIRTH_OF_THE_ASHBRINGER))
                                     temp->RemoveAurasDueToSpell(SPELL_REBIRTH_OF_THE_ASHBRINGER);
                                 temp->CastSpell(temp, 41542, false); // workarounds, light expoded, makes it cool
                                 temp->HandleEmoteCommand(EMOTE_ONESHOT_ROAR);
@@ -1433,7 +1414,7 @@ public:
                     bIsBattle = false;
                     uiFight_duration = 300000;
 
-                    if (me->HasAura(SPELL_THE_MIGHT_OF_MOGRAINE, 0))
+                    if (me->HasAura(SPELL_THE_MIGHT_OF_MOGRAINE))
                         me->RemoveAurasDueToSpell(SPELL_THE_MIGHT_OF_MOGRAINE);
                     me->RemoveAllAuras();
                     me->DeleteThreatList();
@@ -1532,7 +1513,7 @@ public:
             ++uiStep;
         }
 
-        void NPCChangeTarget(uint64 ui_GUID)
+        void NPCChangeTarget(ObjectGuid ui_GUID)
         {
             if (Creature* temp = ObjectAccessor::GetCreature(*me, ui_GUID))
                 if (temp->IsAlive())
@@ -1651,7 +1632,7 @@ public:
             }
         }
 
-        void DespawnNPC(uint64 pGUID)
+        void DespawnNPC(ObjectGuid pGUID)
         {
             if (Creature* temp = ObjectAccessor::GetCreature(*me, pGUID))
                 if (temp->IsAlive())
diff --git a/src/server/scripts/EasternKingdoms/ScarletMonastery/boss_headless_horseman.cpp b/src/server/scripts/EasternKingdoms/ScarletMonastery/boss_headless_horseman.cpp
index b9429954dea..58165df48ef 100644
--- a/src/server/scripts/EasternKingdoms/ScarletMonastery/boss_headless_horseman.cpp
+++ b/src/server/scripts/EasternKingdoms/ScarletMonastery/boss_headless_horseman.cpp
@@ -240,14 +240,14 @@ public:
         void Initialize()
         {
             Phase = 0;
-            bodyGUID = 0;
+            bodyGUID.Clear();
             die = false;
             withbody = true;
             wait = 1000;
             laugh = urand(15000, 30000);
         }
 
-        uint64 bodyGUID;
+        ObjectGuid bodyGUID;
 
         uint32 Phase;
         uint32 laugh;
@@ -390,8 +390,6 @@ public:
         {
             Initialize();
             instance = creature->GetInstanceScript();
-            headGUID = 0;
-            PlayerGUID = 0;
             id = 0;
             whirlwind = 0;
             wp_reached = false;
@@ -417,8 +415,8 @@ public:
 
         InstanceScript* instance;
 
-        uint64 headGUID;
-        uint64 PlayerGUID;
+        ObjectGuid headGUID;
+        ObjectGuid PlayerGUID;
 
         uint32 Phase;
         uint32 id;
@@ -446,9 +444,9 @@ public:
             if (headGUID)
             {
                 if (Creature* Head = ObjectAccessor::GetCreature((*me), headGUID))
-                    Head->DisappearAndDie();
+                    Head->DespawnOrUnsummon();
 
-                headGUID = 0;
+                headGUID.Clear();
             }
 
             me->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_IMMUNE_TO_PC);
@@ -806,18 +804,17 @@ public:
         npc_pulsing_pumpkinAI(Creature* creature) : ScriptedAI(creature)
         {
             sprouted = false;
-            debuffGUID = 0;
         }
 
         bool sprouted;
-        uint64 debuffGUID;
+        ObjectGuid debuffGUID;
 
         void Reset() override
         {
             float x, y, z;
             me->GetPosition(x, y, z);   //this visual aura some under ground
             me->SetPosition(x, y, z + 0.35f, 0.0f);
-            debuffGUID = 0;
+            debuffGUID.Clear();
             Despawn();
             Creature* debuff = DoSpawnCreature(HELPER, 0, 0, 0, 0, TEMPSUMMON_TIMED_OR_CORPSE_DESPAWN, 14500);
             if (debuff)
@@ -857,7 +854,7 @@ public:
             if (debuff)
             {
                 debuff->SetVisible(false);
-                debuffGUID = 0;
+                debuffGUID.Clear();
             }
         }
 
diff --git a/src/server/scripts/EasternKingdoms/ScarletMonastery/boss_interrogator_vishas.cpp b/src/server/scripts/EasternKingdoms/ScarletMonastery/boss_interrogator_vishas.cpp
index 3e752858e63..4f0cdc2ec16 100644
--- a/src/server/scripts/EasternKingdoms/ScarletMonastery/boss_interrogator_vishas.cpp
+++ b/src/server/scripts/EasternKingdoms/ScarletMonastery/boss_interrogator_vishas.cpp
@@ -77,7 +77,7 @@ class boss_interrogator_vishas : public CreatureScript
             void JustDied(Unit* /*killer*/) override
             {
                 _JustDied();
-                if (Creature* vorrel = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_VORREL)))
+                if (Creature* vorrel = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_VORREL)))
                     vorrel->AI()->Talk(SAY_TRIGGER_VORREL);
             }
 
diff --git a/src/server/scripts/EasternKingdoms/ScarletMonastery/boss_mograine_and_whitemane.cpp b/src/server/scripts/EasternKingdoms/ScarletMonastery/boss_mograine_and_whitemane.cpp
index 02f7c815414..da32e535ab2 100644
--- a/src/server/scripts/EasternKingdoms/ScarletMonastery/boss_mograine_and_whitemane.cpp
+++ b/src/server/scripts/EasternKingdoms/ScarletMonastery/boss_mograine_and_whitemane.cpp
@@ -132,7 +132,7 @@ public:
                 return;
 
             //On first death, fake death and open door, as well as initiate whitemane if exist
-            if (Unit* Whitemane = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_WHITEMANE)))
+            if (Unit* Whitemane = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_WHITEMANE)))
             {
                 instance->SetBossState(DATA_MOGRAINE_AND_WHITE_EVENT, IN_PROGRESS);
 
@@ -180,7 +180,7 @@ public:
             if (_bHasDied && !_bHeal && instance->GetBossState(DATA_MOGRAINE_AND_WHITE_EVENT) == SPECIAL)
             {
                 //On resurrection, stop fake death and heal whitemane and resume fight
-                if (Unit* Whitemane = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_WHITEMANE)))
+                if (Unit* Whitemane = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_WHITEMANE)))
                 {
                     me->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
                     me->SetStandState(UNIT_STAND_STATE_STAND);
@@ -302,7 +302,7 @@ public:
                 //When casting resuruction make sure to delay so on rez when reinstate battle deepsleep runs out
                 if (Wait_Timer <= diff)
                 {
-                    if (Creature* mograine = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_MOGRAINE)))
+                    if (Creature* mograine = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_MOGRAINE)))
                     {
                         DoCast(mograine, SPELL_SCARLETRESURRECTION);
                         Talk(SAY_WH_RESURRECT);
@@ -336,7 +336,7 @@ public:
                 if (!HealthAbovePct(75))
                     target = me;
 
-                if (Creature* mograine = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_MOGRAINE)))
+                if (Creature* mograine = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_MOGRAINE)))
                 {
                     // checking _bCanResurrectCheck prevents her healing Mograine while he is "faking death"
                     if (_bCanResurrectCheck && mograine->IsAlive() && !mograine->HealthAbovePct(75))
diff --git a/src/server/scripts/EasternKingdoms/ScarletMonastery/instance_scarlet_monastery.cpp b/src/server/scripts/EasternKingdoms/ScarletMonastery/instance_scarlet_monastery.cpp
index 3a79dac3a90..ab0a44b013d 100644
--- a/src/server/scripts/EasternKingdoms/ScarletMonastery/instance_scarlet_monastery.cpp
+++ b/src/server/scripts/EasternKingdoms/ScarletMonastery/instance_scarlet_monastery.cpp
@@ -38,13 +38,6 @@ class instance_scarlet_monastery : public InstanceMapScript
                 SetBossNumber(EncounterCount);
                 LoadDoorData(doorData);
 
-                PumpkinShrineGUID      = 0;
-                HorsemanGUID           = 0;
-                HeadGUID               = 0;
-                MograineGUID           = 0;
-                WhitemaneGUID          = 0;
-                VorrelGUID             = 0;
-
                 HorsemanAdds.clear();
             }
 
@@ -124,7 +117,7 @@ class instance_scarlet_monastery : public InstanceMapScript
                     case DATA_HORSEMAN_EVENT:
                         if (state == DONE)
                         {
-                            for (uint64 guid : HorsemanAdds)
+                            for (ObjectGuid guid : HorsemanAdds)
                             {
                                 Creature* add = instance->GetCreature(guid);
                                 if (add && add->IsAlive())
@@ -140,7 +133,7 @@ class instance_scarlet_monastery : public InstanceMapScript
                 return true;
             }
 
-            uint64 GetData64(uint32 type) const override
+            ObjectGuid GetGuidData(uint32 type) const override
             {
                 switch (type)
                 {
@@ -153,18 +146,18 @@ class instance_scarlet_monastery : public InstanceMapScript
                     default:
                         break;
                 }
-                return 0;
+                return ObjectGuid::Empty;
             }
 
         protected:
-            uint64 PumpkinShrineGUID;
-            uint64 HorsemanGUID;
-            uint64 HeadGUID;
-            uint64 MograineGUID;
-            uint64 WhitemaneGUID;
-            uint64 VorrelGUID;
-
-            std::set<uint64> HorsemanAdds;
+            ObjectGuid PumpkinShrineGUID;
+            ObjectGuid HorsemanGUID;
+            ObjectGuid HeadGUID;
+            ObjectGuid MograineGUID;
+            ObjectGuid WhitemaneGUID;
+            ObjectGuid VorrelGUID;
+
+            GuidSet HorsemanAdds;
         };
 
         InstanceScript* GetInstanceScript(InstanceMap* map) const override
diff --git a/src/server/scripts/EasternKingdoms/Scholomance/boss_darkmaster_gandling.cpp b/src/server/scripts/EasternKingdoms/Scholomance/boss_darkmaster_gandling.cpp
index 0386341ed0c..24f7d90817d 100644
--- a/src/server/scripts/EasternKingdoms/Scholomance/boss_darkmaster_gandling.cpp
+++ b/src/server/scripts/EasternKingdoms/Scholomance/boss_darkmaster_gandling.cpp
@@ -59,14 +59,14 @@ class boss_darkmaster_gandling : public CreatureScript
             void Reset() override
             {
                 _Reset();
-                if (GameObject* gate = me->GetMap()->GetGameObject(instance->GetData64(GO_GATE_GANDLING)))
+                if (GameObject* gate = me->GetMap()->GetGameObject(instance->GetGuidData(GO_GATE_GANDLING)))
                     gate->SetGoState(GO_STATE_ACTIVE);
             }
 
             void JustDied(Unit* /*killer*/) override
             {
                 _JustDied();
-                if (GameObject* gate = me->GetMap()->GetGameObject(instance->GetData64(GO_GATE_GANDLING)))
+                if (GameObject* gate = me->GetMap()->GetGameObject(instance->GetGuidData(GO_GATE_GANDLING)))
                     gate->SetGoState(GO_STATE_ACTIVE);
             }
 
@@ -78,7 +78,7 @@ class boss_darkmaster_gandling : public CreatureScript
                 events.ScheduleEvent(EVENT_CURSE, 2000);
                 events.ScheduleEvent(EVENT_SHADOW_PORTAL, 16000);
 
-                if (GameObject* gate = me->GetMap()->GetGameObject(instance->GetData64(GO_GATE_GANDLING)))
+                if (GameObject* gate = me->GetMap()->GetGameObject(instance->GetGuidData(GO_GATE_GANDLING)))
                     gate->SetGoState(GO_STATE_READY);
             }
 
@@ -181,32 +181,32 @@ class spell_shadow_portal : public SpellScriptLoader
                     switch (urand(0, 5))
                     {
                         case ROOM_HALL_OF_SECRETS:
-                            if (GameObject* go = ObjectAccessor::GetGameObject(*caster, _instance->GetData64(GO_GATE_RAVENIAN)))
+                            if (GameObject* go = ObjectAccessor::GetGameObject(*caster, _instance->GetGuidData(GO_GATE_RAVENIAN)))
                                 if (go->GetGoState() == GO_STATE_ACTIVE)
                                     spellId = SPELL_SHADOW_PORTAL_HALLOFSECRETS;
                             break;
                         case ROOM_HALL_OF_THE_DAMNED:
-                            if (GameObject* go = ObjectAccessor::GetGameObject(*caster, _instance->GetData64(GO_GATE_THEOLEN)))
+                            if (GameObject* go = ObjectAccessor::GetGameObject(*caster, _instance->GetGuidData(GO_GATE_THEOLEN)))
                                 if (go->GetGoState() == GO_STATE_ACTIVE)
                                     spellId = SPELL_SHADOW_PORTAL_HALLOFTHEDAMNED;
                             break;
                         case ROOM_THE_COVEN:
-                            if (GameObject* go = ObjectAccessor::GetGameObject(*caster, _instance->GetData64(GO_GATE_MALICIA)))
+                            if (GameObject* go = ObjectAccessor::GetGameObject(*caster, _instance->GetGuidData(GO_GATE_MALICIA)))
                                 if (go->GetGoState() == GO_STATE_ACTIVE)
                                     spellId = SPELL_SHADOW_PORTAL_THECOVEN;
                             break;
                         case ROOM_THE_SHADOW_VAULT:
-                            if (GameObject* go = ObjectAccessor::GetGameObject(*caster, _instance->GetData64(GO_GATE_ILLUCIA)))
+                            if (GameObject* go = ObjectAccessor::GetGameObject(*caster, _instance->GetGuidData(GO_GATE_ILLUCIA)))
                                 if (go->GetGoState() == GO_STATE_ACTIVE)
                                     spellId = SPELL_SHADOW_PORTAL_THESHADOWVAULT;
                             break;
                         case ROOM_BAROV_FAMILY_VAULT:
-                            if (GameObject* go = ObjectAccessor::GetGameObject(*caster, _instance->GetData64(GO_GATE_BAROV)))
+                            if (GameObject* go = ObjectAccessor::GetGameObject(*caster, _instance->GetGuidData(GO_GATE_BAROV)))
                                 if (go->GetGoState() == GO_STATE_ACTIVE)
                                     spellId = SPELL_SHADOW_PORTAL_BAROVFAMILYVAULT;
                             break;
                         case ROOM_VAULT_OF_THE_RAVENIAN:
-                            if (GameObject* go = ObjectAccessor::GetGameObject(*caster, _instance->GetData64(GO_GATE_POLKELT)))
+                            if (GameObject* go = ObjectAccessor::GetGameObject(*caster, _instance->GetGuidData(GO_GATE_POLKELT)))
                                 if (go->GetGoState() == GO_STATE_ACTIVE)
                                     spellId = SPELL_SHADOW_PORTAL_VAULTOFTHERAVENIAN;
                             break;
@@ -348,7 +348,7 @@ class spell_shadow_portal_rooms : public SpellScriptLoader
                         }
                     }
 
-                    if (GameObject* gate = ObjectAccessor::GetGameObject(*caster, _instance->GetData64(gate_to_close)))
+                    if (GameObject* gate = ObjectAccessor::GetGameObject(*caster, _instance->GetGuidData(gate_to_close)))
                         gate->SetGoState(GO_STATE_READY);
                 }
             }
diff --git a/src/server/scripts/EasternKingdoms/Scholomance/boss_kirtonos_the_herald.cpp b/src/server/scripts/EasternKingdoms/Scholomance/boss_kirtonos_the_herald.cpp
index 3b423134f2a..05f5dcd9952 100644
--- a/src/server/scripts/EasternKingdoms/Scholomance/boss_kirtonos_the_herald.cpp
+++ b/src/server/scripts/EasternKingdoms/Scholomance/boss_kirtonos_the_herald.cpp
@@ -98,9 +98,9 @@ class boss_kirtonos_the_herald : public CreatureScript
 
             void JustDied(Unit* /*killer*/) override
             {
-                if (GameObject* gate = me->GetMap()->GetGameObject(instance->GetData64(GO_GATE_KIRTONOS)))
+                if (GameObject* gate = me->GetMap()->GetGameObject(instance->GetGuidData(GO_GATE_KIRTONOS)))
                     gate->SetGoState(GO_STATE_ACTIVE);
-                if (GameObject* brazier = me->GetMap()->GetGameObject(instance->GetData64(GO_BRAZIER_OF_THE_HERALD)))
+                if (GameObject* brazier = me->GetMap()->GetGameObject(instance->GetGuidData(GO_BRAZIER_OF_THE_HERALD)))
                 {
                     brazier->ResetDoorOrButton();
                     brazier->SetGoState(GO_STATE_READY);
@@ -110,9 +110,9 @@ class boss_kirtonos_the_herald : public CreatureScript
 
             void EnterEvadeMode() override
             {
-                if (GameObject* gate = me->GetMap()->GetGameObject(instance->GetData64(GO_GATE_KIRTONOS)))
+                if (GameObject* gate = me->GetMap()->GetGameObject(instance->GetGuidData(GO_GATE_KIRTONOS)))
                     gate->SetGoState(GO_STATE_ACTIVE);
-                if (GameObject* brazier = me->GetMap()->GetGameObject(instance->GetData64(GO_BRAZIER_OF_THE_HERALD)))
+                if (GameObject* brazier = me->GetMap()->GetGameObject(instance->GetGuidData(GO_BRAZIER_OF_THE_HERALD)))
                 {
                     brazier->ResetDoorOrButton();
                     brazier->SetGoState(GO_STATE_READY);
@@ -160,13 +160,13 @@ class boss_kirtonos_the_herald : public CreatureScript
                                 events.ScheduleEvent(INTRO_3, 1000);
                                 break;
                             case INTRO_3:
-                                if (GameObject* gate = me->GetMap()->GetGameObject(instance->GetData64(GO_GATE_KIRTONOS)))
+                                if (GameObject* gate = me->GetMap()->GetGameObject(instance->GetGuidData(GO_GATE_KIRTONOS)))
                                     gate->SetGoState(GO_STATE_READY);
                                 me->SetFacingTo(0.01745329f);
                                 events.ScheduleEvent(INTRO_4, 3000);
                                 break;
                             case INTRO_4:
-                                if (GameObject* brazier = me->GetMap()->GetGameObject(instance->GetData64(GO_BRAZIER_OF_THE_HERALD)))
+                                if (GameObject* brazier = me->GetMap()->GetGameObject(instance->GetGuidData(GO_BRAZIER_OF_THE_HERALD)))
                                     brazier->SetGoState(GO_STATE_READY);
                                 me->SetWalk(true);
                                 me->SetDisableGravity(false);
diff --git a/src/server/scripts/EasternKingdoms/Scholomance/instance_scholomance.cpp b/src/server/scripts/EasternKingdoms/Scholomance/instance_scholomance.cpp
index f1959b6cf56..9565666cee8 100644
--- a/src/server/scripts/EasternKingdoms/Scholomance/instance_scholomance.cpp
+++ b/src/server/scripts/EasternKingdoms/Scholomance/instance_scholomance.cpp
@@ -38,15 +38,6 @@ class instance_scholomance : public InstanceMapScript
             {
                 SetHeaders(DataHeader);
                 SetBossNumber(EncounterCount);
-                GateKirtonosGUID        = 0;
-                GateGandlingGUID        = 0;
-                GateMiliciaGUID         = 0;
-                GateTheolenGUID         = 0;
-                GatePolkeltGUID         = 0;
-                GateRavenianGUID        = 0;
-                GateBarovGUID           = 0;
-                GateIlluciaGUID         = 0;
-                BrazierOfTheHeraldGUID  = 0;
             }
 
             void OnGameObjectCreate(GameObject* go) override
@@ -107,7 +98,7 @@ class instance_scholomance : public InstanceMapScript
                 return true;
             }
 
-            uint64 GetData64(uint32 type) const override
+            ObjectGuid GetGuidData(uint32 type) const override
             {
                 switch (type)
                 {
@@ -133,7 +124,7 @@ class instance_scholomance : public InstanceMapScript
                         break;
                 }
 
-                return 0;
+                return ObjectGuid::Empty;
             }
 
             bool CheckPreBosses(uint32 bossId) const
@@ -175,15 +166,15 @@ class instance_scholomance : public InstanceMapScript
             }
 
         protected:
-            uint64 GateKirtonosGUID;
-            uint64 GateGandlingGUID;
-            uint64 GateMiliciaGUID;
-            uint64 GateTheolenGUID;
-            uint64 GatePolkeltGUID;
-            uint64 GateRavenianGUID;
-            uint64 GateBarovGUID;
-            uint64 GateIlluciaGUID;
-            uint64 BrazierOfTheHeraldGUID;
+            ObjectGuid GateKirtonosGUID;
+            ObjectGuid GateGandlingGUID;
+            ObjectGuid GateMiliciaGUID;
+            ObjectGuid GateTheolenGUID;
+            ObjectGuid GatePolkeltGUID;
+            ObjectGuid GateRavenianGUID;
+            ObjectGuid GateBarovGUID;
+            ObjectGuid GateIlluciaGUID;
+            ObjectGuid BrazierOfTheHeraldGUID;
         };
 };
 
diff --git a/src/server/scripts/EasternKingdoms/ShadowfangKeep/instance_shadowfang_keep.cpp b/src/server/scripts/EasternKingdoms/ShadowfangKeep/instance_shadowfang_keep.cpp
index 10c4aedf103..ae8cb74ea49 100644
--- a/src/server/scripts/EasternKingdoms/ShadowfangKeep/instance_shadowfang_keep.cpp
+++ b/src/server/scripts/EasternKingdoms/ShadowfangKeep/instance_shadowfang_keep.cpp
@@ -83,13 +83,13 @@ public:
         uint32 m_auiEncounter[MAX_ENCOUNTER];
         std::string str_data;
 
-        uint64 uiAshGUID;
-        uint64 uiAdaGUID;
-        uint64 uiArchmageArugalGUID;
+        ObjectGuid uiAshGUID;
+        ObjectGuid uiAdaGUID;
+        ObjectGuid uiArchmageArugalGUID;
 
-        uint64 DoorCourtyardGUID;
-        uint64 DoorSorcererGUID;
-        uint64 DoorArugalGUID;
+        ObjectGuid DoorCourtyardGUID;
+        ObjectGuid DoorSorcererGUID;
+        ObjectGuid DoorArugalGUID;
 
         uint8 uiPhase;
         uint16 uiTimer;
@@ -99,14 +99,6 @@ public:
             SetHeaders(DataHeader);
             memset(&m_auiEncounter, 0, sizeof(m_auiEncounter));
 
-            uiAshGUID = 0;
-            uiAdaGUID = 0;
-            uiArchmageArugalGUID = 0;
-
-            DoorCourtyardGUID = 0;
-            DoorSorcererGUID = 0;
-            DoorArugalGUID = 0;
-
             uiPhase = 0;
             uiTimer = 0;
         }
@@ -128,17 +120,17 @@ public:
                 case GO_COURTYARD_DOOR:
                     DoorCourtyardGUID = go->GetGUID();
                     if (m_auiEncounter[0] == DONE)
-                        HandleGameObject(0, true, go);
+                        HandleGameObject(ObjectGuid::Empty, true, go);
                     break;
                 case GO_SORCERER_DOOR:
                     DoorSorcererGUID = go->GetGUID();
                     if (m_auiEncounter[2] == DONE)
-                        HandleGameObject(0, true, go);
+                        HandleGameObject(ObjectGuid::Empty, true, go);
                     break;
                 case GO_ARUGAL_DOOR:
                     DoorArugalGUID = go->GetGUID();
                     if (m_auiEncounter[3] == DONE)
-                        HandleGameObject(0, true, go);
+                        HandleGameObject(ObjectGuid::Empty, true, go);
                     break;
             }
         }
diff --git a/src/server/scripts/EasternKingdoms/Stratholme/boss_order_of_silver_hand.cpp b/src/server/scripts/EasternKingdoms/Stratholme/boss_order_of_silver_hand.cpp
index 0a09bc85ea3..e855b7e676f 100644
--- a/src/server/scripts/EasternKingdoms/Stratholme/boss_order_of_silver_hand.cpp
+++ b/src/server/scripts/EasternKingdoms/Stratholme/boss_order_of_silver_hand.cpp
@@ -132,7 +132,7 @@ public:
             if (instance->GetData(TYPE_SH_QUEST))
             {
                 if (Player* player = killer->ToPlayer())
-                    player->KilledMonsterCredit(SH_QUEST_CREDIT, 0);
+                    player->KilledMonsterCredit(SH_QUEST_CREDIT);
             }
         }
 
diff --git a/src/server/scripts/EasternKingdoms/Stratholme/instance_stratholme.cpp b/src/server/scripts/EasternKingdoms/Stratholme/instance_stratholme.cpp
index 43ce4d05297..927ca0b19ac 100644
--- a/src/server/scripts/EasternKingdoms/Stratholme/instance_stratholme.cpp
+++ b/src/server/scripts/EasternKingdoms/Stratholme/instance_stratholme.cpp
@@ -56,21 +56,21 @@ class instance_stratholme : public InstanceMapScript
 
             bool IsSilverHandDead[5];
 
-            uint64 serviceEntranceGUID;
-            uint64 gauntletGate1GUID;
-            uint64 ziggurat1GUID;
-            uint64 ziggurat2GUID;
-            uint64 ziggurat3GUID;
-            uint64 ziggurat4GUID;
-            uint64 ziggurat5GUID;
-            uint64 portGauntletGUID;
-            uint64 portSlaugtherGUID;
-            uint64 portElderGUID;
-
-            uint64 baronGUID;
-            uint64 ysidaTriggerGUID;
-            std::set<uint64> crystalsGUID;
-            std::set<uint64> abomnationGUID;
+            ObjectGuid serviceEntranceGUID;
+            ObjectGuid gauntletGate1GUID;
+            ObjectGuid ziggurat1GUID;
+            ObjectGuid ziggurat2GUID;
+            ObjectGuid ziggurat3GUID;
+            ObjectGuid ziggurat4GUID;
+            ObjectGuid ziggurat5GUID;
+            ObjectGuid portGauntletGUID;
+            ObjectGuid portSlaugtherGUID;
+            ObjectGuid portElderGUID;
+
+            ObjectGuid baronGUID;
+            ObjectGuid ysidaTriggerGUID;
+            GuidSet crystalsGUID;
+            GuidSet abomnationGUID;
             EventMap events;
 
             void Initialize() override
@@ -81,19 +81,6 @@ class instance_stratholme : public InstanceMapScript
                 for (uint8 i = 0; i < 5; ++i)
                     IsSilverHandDead[i] = false;
 
-                serviceEntranceGUID = 0;
-                gauntletGate1GUID = 0;
-                ziggurat1GUID = 0;
-                ziggurat2GUID = 0;
-                ziggurat3GUID = 0;
-                ziggurat4GUID = 0;
-                ziggurat5GUID = 0;
-                portGauntletGUID = 0;
-                portSlaugtherGUID = 0;
-                portElderGUID = 0;
-
-                baronGUID = 0;
-                ysidaTriggerGUID = 0;
                 crystalsGUID.clear();
                 abomnationGUID.clear();
             }
@@ -113,7 +100,7 @@ class instance_stratholme : public InstanceMapScript
             }
 
             //if withRestoreTime true, then newState will be ignored and GO should be restored to original state after 10 seconds
-            void UpdateGoState(uint64 goGuid, uint32 newState, bool withRestoreTime)
+            void UpdateGoState(ObjectGuid goGuid, uint32 newState, bool withRestoreTime)
             {
                 if (!goGuid)
                     return;
@@ -176,37 +163,37 @@ class instance_stratholme : public InstanceMapScript
                     case GO_ZIGGURAT1:
                         ziggurat1GUID = go->GetGUID();
                         if (GetData(TYPE_BARONESS) == IN_PROGRESS)
-                            HandleGameObject(0, true, go);
+                            HandleGameObject(ObjectGuid::Empty, true, go);
                         break;
                     case GO_ZIGGURAT2:
                         ziggurat2GUID = go->GetGUID();
                         if (GetData(TYPE_NERUB) == IN_PROGRESS)
-                            HandleGameObject(0, true, go);
+                            HandleGameObject(ObjectGuid::Empty, true, go);
                         break;
                     case GO_ZIGGURAT3:
                         ziggurat3GUID = go->GetGUID();
                         if (GetData(TYPE_PALLID) == IN_PROGRESS)
-                            HandleGameObject(0, true, go);
+                            HandleGameObject(ObjectGuid::Empty, true, go);
                         break;
                     case GO_ZIGGURAT4:
                         ziggurat4GUID = go->GetGUID();
                         if (GetData(TYPE_BARON) == DONE || GetData(TYPE_RAMSTEIN) == DONE)
-                            HandleGameObject(0, true, go);
+                            HandleGameObject(ObjectGuid::Empty, true, go);
                         break;
                     case GO_ZIGGURAT5:
                         ziggurat5GUID = go->GetGUID();
                         if (GetData(TYPE_BARON) == DONE || GetData(TYPE_RAMSTEIN) == DONE)
-                            HandleGameObject(0, true, go);
+                            HandleGameObject(ObjectGuid::Empty, true, go);
                         break;
                     case GO_PORT_GAUNTLET:
                         portGauntletGUID = go->GetGUID();
                         if (GetData(TYPE_BARONESS) == IN_PROGRESS && GetData(TYPE_NERUB) == IN_PROGRESS && GetData(TYPE_PALLID) == IN_PROGRESS)
-                            HandleGameObject(0, true, go);
+                            HandleGameObject(ObjectGuid::Empty, true, go);
                         break;
                     case GO_PORT_SLAUGTHER:
                         portSlaugtherGUID = go->GetGUID();
                         if (GetData(TYPE_BARONESS) == IN_PROGRESS && GetData(TYPE_NERUB) == IN_PROGRESS && GetData(TYPE_PALLID) == IN_PROGRESS)
-                            HandleGameObject(0, true, go);
+                            HandleGameObject(ObjectGuid::Empty, true, go);
                         break;
                     case GO_PORT_ELDERS:
                         portElderGUID = go->GetGUID();
@@ -276,7 +263,7 @@ class instance_stratholme : public InstanceMapScript
                             HandleGameObject(portGauntletGUID, false);
 
                             uint32 count = abomnationGUID.size();
-                            for (std::set<uint64>::const_iterator i = abomnationGUID.begin(); i != abomnationGUID.end(); ++i)
+                            for (GuidSet::const_iterator i = abomnationGUID.begin(); i != abomnationGUID.end(); ++i)
                             {
                                 if (Creature* pAbom = instance->GetCreature(*i))
                                     if (!pAbom->IsAlive())
@@ -418,7 +405,7 @@ class instance_stratholme : public InstanceMapScript
                   return 0;
             }
 
-            uint64 GetData64(uint32 data) const override
+            ObjectGuid GetGuidData(uint32 data) const override
             {
                 switch (data)
                 {
@@ -427,7 +414,7 @@ class instance_stratholme : public InstanceMapScript
                     case DATA_YSIDA_TRIGGER:
                         return ysidaTriggerGUID;
                 }
-                return 0;
+                return ObjectGuid::Empty;
             }
 
             void Update(uint32 diff) override
diff --git a/src/server/scripts/EasternKingdoms/Stratholme/stratholme.cpp b/src/server/scripts/EasternKingdoms/Stratholme/stratholme.cpp
index 9c733677b42..384be9c90a8 100644
--- a/src/server/scripts/EasternKingdoms/Stratholme/stratholme.cpp
+++ b/src/server/scripts/EasternKingdoms/Stratholme/stratholme.cpp
@@ -117,12 +117,12 @@ public:
 
         void Initialize()
         {
-            Tagger = 0;
+            Tagger.Clear();
             Die_Timer = 5000;
             Tagged = false;
         }
 
-        uint64 Tagger;
+        ObjectGuid Tagger;
         uint32 Die_Timer;
         bool Tagged;
 
diff --git a/src/server/scripts/EasternKingdoms/SunkenTemple/instance_sunken_temple.cpp b/src/server/scripts/EasternKingdoms/SunkenTemple/instance_sunken_temple.cpp
index ee16a662711..194f5790f44 100644
--- a/src/server/scripts/EasternKingdoms/SunkenTemple/instance_sunken_temple.cpp
+++ b/src/server/scripts/EasternKingdoms/SunkenTemple/instance_sunken_temple.cpp
@@ -63,13 +63,13 @@ public:
             SetHeaders(DataHeader);
         }
 
-        uint64 GOAtalaiStatue1;
-        uint64 GOAtalaiStatue2;
-        uint64 GOAtalaiStatue3;
-        uint64 GOAtalaiStatue4;
-        uint64 GOAtalaiStatue5;
-        uint64 GOAtalaiStatue6;
-        uint64 GOAtalaiIdol;
+        ObjectGuid GOAtalaiStatue1;
+        ObjectGuid GOAtalaiStatue2;
+        ObjectGuid GOAtalaiStatue3;
+        ObjectGuid GOAtalaiStatue4;
+        ObjectGuid GOAtalaiStatue5;
+        ObjectGuid GOAtalaiStatue6;
+        ObjectGuid GOAtalaiIdol;
 
         uint32 State;
 
@@ -82,13 +82,6 @@ public:
 
         void Initialize() override
         {
-            GOAtalaiStatue1 = 0;
-            GOAtalaiStatue2 = 0;
-            GOAtalaiStatue3 = 0;
-            GOAtalaiStatue4 = 0;
-            GOAtalaiStatue5 = 0;
-            GOAtalaiStatue6 = 0;
-            GOAtalaiIdol = 0;
 
             State = 0;
 
diff --git a/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_brutallus.cpp b/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_brutallus.cpp
index 4e401be7df3..1ad113456ac 100644
--- a/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_brutallus.cpp
+++ b/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_brutallus.cpp
@@ -147,7 +147,7 @@ public:
             if (!Intro || IsIntro)
                 return;
 
-            if (Creature* Madrigosa = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_MADRIGOSA)))
+            if (Creature* Madrigosa = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_MADRIGOSA)))
             {
                 Madrigosa->Respawn();
                 Madrigosa->setActive(true);
@@ -182,7 +182,7 @@ public:
 
         void DoIntro()
         {
-            Creature* Madrigosa = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_MADRIGOSA));
+            Creature* Madrigosa = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_MADRIGOSA));
             if (!Madrigosa)
                 return;
 
@@ -285,7 +285,7 @@ public:
                 {
                     if (IntroFrostBoltTimer <= diff)
                     {
-                        if (Creature* Madrigosa = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_MADRIGOSA)))
+                        if (Creature* Madrigosa = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_MADRIGOSA)))
                         {
                             Madrigosa->CastSpell(me, SPELL_INTRO_FROSTBOLT, true);
                             IntroFrostBoltTimer = 2000;
diff --git a/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_eredar_twins.cpp b/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_eredar_twins.cpp
index d2382cda37d..7613811e021 100644
--- a/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_eredar_twins.cpp
+++ b/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_eredar_twins.cpp
@@ -114,7 +114,7 @@ public:
         {
             Enraged = false;
 
-            if (Creature* temp =  ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_ALYTHESS)))
+            if (Creature* temp =  ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_ALYTHESS)))
             {
                 if (temp->isDead())
                     temp->Respawn();
@@ -134,7 +134,7 @@ public:
         {
             DoZoneInCombat();
 
-            Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_ALYTHESS));
+            Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_ALYTHESS));
             if (temp && temp->IsAlive() && !temp->GetVictim())
                 temp->AI()->AttackStart(who);
 
@@ -207,7 +207,7 @@ public:
         {
             if (!SisterDeath)
             {
-                Unit* Temp = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_ALYTHESS));
+                Unit* Temp = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_ALYTHESS));
                 if (Temp && Temp->isDead())
                 {
                     Talk(YELL_SISTER_ALYTHESS_DEAD);
@@ -366,7 +366,7 @@ public:
         {
             Enraged = false;
 
-            if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SACROLASH)))
+            if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SACROLASH)))
             {
                 if (temp->isDead())
                     temp->Respawn();
@@ -386,7 +386,7 @@ public:
         {
             DoZoneInCombat();
 
-            Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SACROLASH));
+            Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SACROLASH));
             if (temp && temp->IsAlive() && !temp->GetVictim())
                 temp->AI()->AttackStart(who);
 
@@ -486,7 +486,7 @@ public:
 
         uint32 IntroStep(uint32 step)
         {
-            Creature* Sacrolash = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SACROLASH));
+            Creature* Sacrolash = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SACROLASH));
             switch (step)
             {
                 case 0:
@@ -535,7 +535,7 @@ public:
 
             if (!SisterDeath)
             {
-                Unit* Temp = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_SACROLASH));
+                Unit* Temp = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_SACROLASH));
                 if (Temp && Temp->isDead())
                 {
                     Talk(YELL_SISTER_SACROLASH_DEAD);
@@ -546,7 +546,7 @@ public:
             }
             if (!me->GetVictim())
             {
-                Creature* sisiter = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SACROLASH));
+                Creature* sisiter = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SACROLASH));
                 if (sisiter && !sisiter->isDead() && sisiter->GetVictim())
                 {
                     me->AddThreat(sisiter->GetVictim(), 0.0f);
diff --git a/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_felmyst.cpp b/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_felmyst.cpp
index 4b17f698553..859a09aff78 100644
--- a/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_felmyst.cpp
+++ b/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_felmyst.cpp
@@ -288,7 +288,7 @@ public:
                 {
                     Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 0, 150, true);
                     if (!target)
-                        target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_PLAYER_GUID));
+                        target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_PLAYER_GUID));
 
                     if (!target)
                     {
@@ -314,7 +314,7 @@ public:
 
                     Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 0, 150, true);
                     if (!target)
-                        target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_PLAYER_GUID));
+                        target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_PLAYER_GUID));
 
                     if (!target)
                     {
@@ -343,7 +343,7 @@ public:
                 {
                     Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 0, 150, true);
                     if (!target)
-                        target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_PLAYER_GUID));
+                        target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_PLAYER_GUID));
 
                     if (!target)
                     {
diff --git a/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_kalecgos.cpp b/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_kalecgos.cpp
index 60bfae36f47..f88c9c6159e 100644
--- a/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_kalecgos.cpp
+++ b/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_kalecgos.cpp
@@ -115,7 +115,7 @@ public:
 
         void Initialize()
         {
-            SathGUID = 0;
+            SathGUID.Clear();
             ArcaneBuffetTimer = 8000;
             FrostBreathTimer = 15000;
             WildMagicTimer = 10000;
@@ -148,11 +148,11 @@ public:
         bool isBanished;
         bool bJustReset;
 
-        uint64 SathGUID;
+        ObjectGuid SathGUID;
 
         void Reset() override
         {
-            SathGUID = instance->GetData64(DATA_SATHROVARR);
+            SathGUID = instance->GetGuidData(DATA_SATHROVARR);
             instance->SetBossState(DATA_KALECGOS, NOT_STARTED);
 
             if (Creature* Sath = ObjectAccessor::GetCreature(*me, SathGUID))
@@ -456,7 +456,7 @@ public:
         uint32 YellTimer;
         uint32 YellSequence;
 
-        uint64 SathGUID;
+        ObjectGuid SathGUID;
 
         bool isEnraged; // if demon is enraged
 
@@ -464,7 +464,6 @@ public:
         {
             Initialize();
             instance = creature->GetInstanceScript();
-            SathGUID = 0;
         }
 
         void Initialize()
@@ -479,7 +478,7 @@ public:
 
         void Reset() override
         {
-            SathGUID = instance->GetData64(DATA_SATHROVARR);
+            SathGUID = instance->GetGuidData(DATA_SATHROVARR);
 
             Initialize();
         }
@@ -593,8 +592,6 @@ public:
         {
             Initialize();
             instance = creature->GetInstanceScript();
-            KalecGUID = 0;
-            KalecgosGUID = 0;
         }
 
         void Initialize()
@@ -616,8 +613,8 @@ public:
         uint32 CheckTimer;
         uint32 ResetThreat;
 
-        uint64 KalecGUID;
-        uint64 KalecgosGUID;
+        ObjectGuid KalecGUID;
+        ObjectGuid KalecgosGUID;
 
         bool isEnraged;
         bool isBanished;
@@ -626,13 +623,13 @@ public:
         {
             me->SetFullHealth();//dunno why it does not resets health at evade..
             me->setActive(true);
-            KalecgosGUID = instance->GetData64(DATA_KALECGOS_DRAGON);
+            KalecgosGUID = instance->GetGuidData(DATA_KALECGOS_DRAGON);
             instance->SetBossState(DATA_KALECGOS, NOT_STARTED);
             if (KalecGUID)
             {
                 if (Creature* Kalec = ObjectAccessor::GetCreature(*me, KalecGUID))
                     Kalec->setDeathState(JUST_DIED);
-                KalecGUID = 0;
+                KalecGUID.Clear();
             }
 
             Initialize();
diff --git a/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_kiljaeden.cpp b/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_kiljaeden.cpp
index 79ebfa7b62b..9bddbcccf49 100644
--- a/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_kiljaeden.cpp
+++ b/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_kiljaeden.cpp
@@ -274,13 +274,13 @@ public:
             switch (index)
             {
                 case 0:
-                    return ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_ORB_OF_THE_BLUE_DRAGONFLIGHT_1));
+                    return ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_ORB_OF_THE_BLUE_DRAGONFLIGHT_1));
                 case 1:
-                    return ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_ORB_OF_THE_BLUE_DRAGONFLIGHT_2));
+                    return ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_ORB_OF_THE_BLUE_DRAGONFLIGHT_2));
                 case 2:
-                    return ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_ORB_OF_THE_BLUE_DRAGONFLIGHT_3));
+                    return ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_ORB_OF_THE_BLUE_DRAGONFLIGHT_3));
                 case 3:
-                    return ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_ORB_OF_THE_BLUE_DRAGONFLIGHT_4));
+                    return ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_ORB_OF_THE_BLUE_DRAGONFLIGHT_4));
             }
 
             return NULL;
@@ -375,7 +375,7 @@ public:
             player->CastSpell(player, SPELL_VENGEANCE_OF_THE_BLUE_FLIGHT, false);
             go->SetUInt32Value(GAMEOBJECT_FACTION, 0);
 
-            if (Creature* pKalec = ObjectAccessor::GetCreature(*player, instance->GetData64(DATA_KALECGOS_KJ)))
+            if (Creature* pKalec = ObjectAccessor::GetCreature(*player, instance->GetGuidData(DATA_KALECGOS_KJ)))
                 ENSURE_AI(boss_kalecgos_kj::boss_kalecgos_kjAI, pKalec->AI())->SetRingOfBlueFlames();
 
             go->Refresh();
@@ -437,7 +437,7 @@ public:
         {
             Initialize();
 
-            if (Creature* pKalecKJ = ObjectAccessor::GetCreature((*me), instance->GetData64(DATA_KALECGOS_KJ)))
+            if (Creature* pKalecKJ = ObjectAccessor::GetCreature((*me), instance->GetGuidData(DATA_KALECGOS_KJ)))
                 ENSURE_AI(boss_kalecgos_kj::boss_kalecgos_kjAI, pKalecKJ->AI())->ResetOrbs();
             summons.DespawnAll();
         }
@@ -571,7 +571,7 @@ public:
         {
             Initialize();
 
-            if (Creature* pKalec = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_KALECGOS_KJ)))
+            if (Creature* pKalec = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_KALECGOS_KJ)))
                 pKalec->RemoveDynObject(SPELL_RING_OF_BLUE_FLAMES);
 
             me->SetFloatValue(UNIT_FIELD_COMBATREACH, 12);
@@ -631,7 +631,7 @@ public:
             summons.DespawnAll();
 
             // Reset the controller
-            if (Creature* pControl = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_KILJAEDEN_CONTROLLER)))
+            if (Creature* pControl = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_KILJAEDEN_CONTROLLER)))
                 ENSURE_AI(npc_kiljaeden_controller::npc_kiljaeden_controllerAI, pControl->AI())->Reset();
         }
 
@@ -713,10 +713,10 @@ public:
                             if (Speeches[speechCount].timer < SpeechTimer)
                             {
                                 SpeechTimer = 0;
-                                if (Creature* speechCreature = ObjectAccessor::GetCreature(*me, instance->GetData64(Speeches[speechCount].creature)))
+                                if (Creature* speechCreature = ObjectAccessor::GetCreature(*me, instance->GetGuidData(Speeches[speechCount].creature)))
                                     speechCreature->AI()->Talk(Speeches[speechCount].textid);
                                 if (speechCount == 12)
-                                    if (Creature* pAnveena =  ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_ANVEENA)))
+                                    if (Creature* pAnveena =  ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_ANVEENA)))
                                         pAnveena->CastSpell(me, SPELL_SACRIFICE_OF_ANVEENA, false);
                                 //   ChangeTimers(true, 10000); // Kil should do an emote while screaming without attacking for 10 seconds
                                 if (speechCount == speechPhaseEnd)
@@ -742,7 +742,7 @@ public:
                                 for (uint8 z = 0; z < 6; ++z)
                                 {
                                     pRandomPlayer = SelectTarget(SELECT_TARGET_RANDOM, 0, 100, true);
-                                    if (!pRandomPlayer || !pRandomPlayer->HasAura(SPELL_VENGEANCE_OF_THE_BLUE_FLIGHT, 0))
+                                    if (!pRandomPlayer || !pRandomPlayer->HasAura(SPELL_VENGEANCE_OF_THE_BLUE_FLIGHT))
                                         break;
                                 }
 
@@ -815,7 +815,7 @@ public:
                             }
                             break;
                         case TIMER_ORBS_EMPOWER: //Phase 3
-                            if (Creature* pKalec = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_KALECGOS_KJ)))
+                            if (Creature* pKalec = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_KALECGOS_KJ)))
                             {
                                 switch (Phase)
                                 {
@@ -835,7 +835,7 @@ public:
                             for (uint8 z = 0; z < 6; ++z)
                             {
                                 target = SelectTarget(SELECT_TARGET_RANDOM, 0, 100, true);
-                                if (!target || !target->HasAura(SPELL_VENGEANCE_OF_THE_BLUE_FLIGHT, 0)) break;
+                                if (!target || !target->HasAura(SPELL_VENGEANCE_OF_THE_BLUE_FLIGHT)) break;
                             }
                             if (target)
                             {
@@ -941,7 +941,7 @@ public:
         void EnterCombat(Unit* who) override
         {
             instance->SetBossState(DATA_KILJAEDEN, IN_PROGRESS);
-            if (Creature* pControl = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_KILJAEDEN_CONTROLLER)))
+            if (Creature* pControl = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_KILJAEDEN_CONTROLLER)))
                 pControl->AddThreat(who, 1.0f);
 
             me->InterruptNonMeleeSpells(true);
@@ -949,7 +949,7 @@ public:
 
         void JustDied(Unit* /*killer*/) override
         {
-            if (Creature* pControl = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_KILJAEDEN_CONTROLLER)))
+            if (Creature* pControl = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_KILJAEDEN_CONTROLLER)))
                 ++(ENSURE_AI(npc_kiljaeden_controller::npc_kiljaeden_controllerAI, pControl->AI())->deceiverDeathCount);
         }
 
@@ -962,7 +962,7 @@ public:
                 return;
 
             // Gain Shadow Infusion at 20% health
-            if (HealthBelowPct(20) && !me->HasAura(SPELL_SHADOW_INFUSION, 0))
+            if (HealthBelowPct(20) && !me->HasAura(SPELL_SHADOW_INFUSION))
                 DoCast(me, SPELL_SHADOW_INFUSION, true);
 
             // Shadow Bolt Volley - Shoots Shadow Bolts at all enemies within 30 yards, for ~2k Shadow damage.
@@ -1260,7 +1260,7 @@ public:
 
             if (uiTimer <= diff)
             {
-                if (Unit* random = ObjectAccessor::GetPlayer(*me, instance->GetData64(DATA_PLAYER_GUID)))
+                if (Unit* random = ObjectAccessor::GetPlayer(*me, instance->GetGuidData(DATA_PLAYER_GUID)))
                     DoCast(random, SPELL_SHADOW_BOLT, false);
                 uiTimer = urand(500, 1000);
             } else uiTimer -= diff;
diff --git a/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_muru.cpp b/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_muru.cpp
index 823423fc3a8..99b710afb1e 100644
--- a/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_muru.cpp
+++ b/src/server/scripts/EasternKingdoms/SunwellPlateau/boss_muru.cpp
@@ -153,7 +153,7 @@ public:
 
         void EnterEvadeMode() override
         {
-            if (Creature* muru = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_MURU)))
+            if (Creature* muru = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_MURU)))
                 muru->AI()->Reset(); // Reset encounter.
             me->DisappearAndDie();
             summons.DespawnAll();
@@ -183,7 +183,7 @@ public:
         {
             DarkFiend = false;
             HasEnraged = false;
-            EntropiusGUID = 0;
+            EntropiusGUID.Clear();
         }
 
         void Reset() override
@@ -278,7 +278,7 @@ public:
     private:
         bool DarkFiend;
         bool HasEnraged;
-        uint64 EntropiusGUID;
+        ObjectGuid EntropiusGUID;
     };
 
     CreatureAI* GetAI(Creature* creature) const override
@@ -334,7 +334,7 @@ public:
 
         void JustSummoned(Creature* summoned) override
         {
-            if (Player* target = ObjectAccessor::GetPlayer(*me, instance->GetData64(DATA_PLAYER_GUID)))
+            if (Player* target = ObjectAccessor::GetPlayer(*me, instance->GetGuidData(DATA_PLAYER_GUID)))
                 summoned->AI()->AttackStart(target);
 
             Summons.Summon(summoned);
@@ -555,7 +555,7 @@ public:
         {
             if (SpellTimer <= diff)
             {
-                Unit* Victim = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_PLAYER_GUID));
+                Unit* Victim = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_PLAYER_GUID));
                 switch (NeedForAHack)
                 {
                     case 0:
@@ -574,7 +574,7 @@ public:
                     case 2:
                         SpellTimer = 400;
                         NeedForAHack = 3;
-                        me->RemoveAura(SPELL_BLACKHOLE_GROW, 1);
+                        me->RemoveAura(SPELL_BLACKHOLE_GROW);
                         break;
                     case 3:
                         SpellTimer = urand(400, 900);
diff --git a/src/server/scripts/EasternKingdoms/SunwellPlateau/instance_sunwell_plateau.cpp b/src/server/scripts/EasternKingdoms/SunwellPlateau/instance_sunwell_plateau.cpp
index 2066c4309b2..f0e785bad16 100644
--- a/src/server/scripts/EasternKingdoms/SunwellPlateau/instance_sunwell_plateau.cpp
+++ b/src/server/scripts/EasternKingdoms/SunwellPlateau/instance_sunwell_plateau.cpp
@@ -53,21 +53,7 @@ class instance_sunwell_plateau : public InstanceMapScript
                 SetBossNumber(EncounterCount);
                 LoadDoorData(doorData);
 
-                KalecgosDragonGUID          = 0;
-                KalecgosHumanGUID           = 0;
-                SathrovarrGUID              = 0;
-                BrutallusGUID               = 0;
-                MadrigosaGUID               = 0;
-                FelmystGUID                 = 0;
-                AlythessGUID                = 0;
-                SacrolashGUID               = 0;
-                MuruGUID                    = 0;
-                KilJaedenGUID               = 0;
-                KilJaedenControllerGUID     = 0;
-                AnveenaGUID                 = 0;
-                KalecgosKjGUID              = 0;
                 SpectralPlayers             = 0;
-
                 SpectralRealmTimer          = 5000;
             }
 
@@ -80,7 +66,7 @@ class instance_sunwell_plateau : public InstanceMapScript
                     for (Map::PlayerList::const_iterator itr = players.begin(); itr != players.end(); ++itr)
                     {
                         Player* player = itr->GetSource();
-                        if (player && !player->HasAura(45839, 0))
+                        if (player && !player->HasAura(45839))
                             return player;
                     }
                 }
@@ -172,7 +158,7 @@ class instance_sunwell_plateau : public InstanceMapScript
                 }
             }
 
-            uint64 GetData64(uint32 id) const override
+            ObjectGuid GetGuidData(uint32 id) const override
             {
                 switch (id)
                 {
@@ -205,32 +191,32 @@ class instance_sunwell_plateau : public InstanceMapScript
                     case DATA_PLAYER_GUID:
                     {
                         Player const* target = GetPlayerInMap();
-                        return target ? target->GetGUID() : 0;
+                        return target ? target->GetGUID() : ObjectGuid::Empty;
                     }
                     default:
                         break;
                 }
-                return 0;
+                return ObjectGuid::Empty;
             }
 
         protected:
-            uint64 KalecgosDragonGUID;
-            uint64 KalecgosHumanGUID;
-            uint64 SathrovarrGUID;
-            uint64 BrutallusGUID;
-            uint64 MadrigosaGUID;
-            uint64 FelmystGUID;
-            uint64 AlythessGUID;
-            uint64 SacrolashGUID;
-            uint64 MuruGUID;
-            uint64 KilJaedenGUID;
-            uint64 KilJaedenControllerGUID;
-            uint64 AnveenaGUID;
-            uint64 KalecgosKjGUID;
+            ObjectGuid KalecgosDragonGUID;
+            ObjectGuid KalecgosHumanGUID;
+            ObjectGuid SathrovarrGUID;
+            ObjectGuid BrutallusGUID;
+            ObjectGuid MadrigosaGUID;
+            ObjectGuid FelmystGUID;
+            ObjectGuid AlythessGUID;
+            ObjectGuid SacrolashGUID;
+            ObjectGuid MuruGUID;
+            ObjectGuid KilJaedenGUID;
+            ObjectGuid KilJaedenControllerGUID;
+            ObjectGuid AnveenaGUID;
+            ObjectGuid KalecgosKjGUID;
             uint32 SpectralPlayers;
 
             uint32 SpectralRealmTimer;
-            std::vector<uint64> SpectralRealmList;
+            GuidVector SpectralRealmList;
         };
 
         InstanceScript* GetInstanceScript(InstanceMap* map) const override
diff --git a/src/server/scripts/EasternKingdoms/Uldaman/boss_archaedas.cpp b/src/server/scripts/EasternKingdoms/Uldaman/boss_archaedas.cpp
index f82d71901ac..6986cb8d6e9 100644
--- a/src/server/scripts/EasternKingdoms/Uldaman/boss_archaedas.cpp
+++ b/src/server/scripts/EasternKingdoms/Uldaman/boss_archaedas.cpp
@@ -98,7 +98,7 @@ class boss_archaedas : public CreatureScript
                 me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_DISABLE_MOVE);
             }
 
-            void ActivateMinion(uint64 uiGuid, bool flag)
+            void ActivateMinion(ObjectGuid uiGuid, bool flag)
             {
                 Unit* minion = ObjectAccessor::GetUnit(*me, uiGuid);
 
@@ -145,7 +145,7 @@ class boss_archaedas : public CreatureScript
                 } else if (bWakingUp && iAwakenTimer <= 0)
                 {
                     bWakingUp = false;
-                    AttackStart(ObjectAccessor::GetUnit(*me, instance->GetData64(0)));
+                    AttackStart(ObjectAccessor::GetUnit(*me, instance->GetGuidData(0)));
                     return;     // dont want to continue until we finish the AttackStart method
                 }
 
@@ -164,12 +164,12 @@ class boss_archaedas : public CreatureScript
                 //If we are <66 summon the guardians
                 if (!bGuardiansAwake && !HealthAbovePct(66))
                 {
-                    ActivateMinion(instance->GetData64(5), true);   // EarthenGuardian1
-                    ActivateMinion(instance->GetData64(6), true);   // EarthenGuardian2
-                    ActivateMinion(instance->GetData64(7), true);   // EarthenGuardian3
-                    ActivateMinion(instance->GetData64(8), true);   // EarthenGuardian4
-                    ActivateMinion(instance->GetData64(9), true);   // EarthenGuardian5
-                    ActivateMinion(instance->GetData64(10), false); // EarthenGuardian6
+                    ActivateMinion(instance->GetGuidData(5), true);   // EarthenGuardian1
+                    ActivateMinion(instance->GetGuidData(6), true);   // EarthenGuardian2
+                    ActivateMinion(instance->GetGuidData(7), true);   // EarthenGuardian3
+                    ActivateMinion(instance->GetGuidData(8), true);   // EarthenGuardian4
+                    ActivateMinion(instance->GetGuidData(9), true);   // EarthenGuardian5
+                    ActivateMinion(instance->GetGuidData(10), false); // EarthenGuardian6
                     Talk(SAY_SUMMON_GUARDIANS);
                     bGuardiansAwake = true;
                 }
@@ -177,10 +177,10 @@ class boss_archaedas : public CreatureScript
                 //If we are <33 summon the vault walkers
                 if (!bVaultWalkersAwake && !HealthAbovePct(33))
                 {
-                    ActivateMinion(instance->GetData64(1), true);    // VaultWalker1
-                    ActivateMinion(instance->GetData64(2), true);    // VaultWalker2
-                    ActivateMinion(instance->GetData64(3), true);    // VaultWalker3
-                    ActivateMinion(instance->GetData64(4), false);    // VaultWalker4
+                    ActivateMinion(instance->GetGuidData(1), true);    // VaultWalker1
+                    ActivateMinion(instance->GetGuidData(2), true);    // VaultWalker2
+                    ActivateMinion(instance->GetGuidData(3), true);    // VaultWalker3
+                    ActivateMinion(instance->GetGuidData(4), false);    // VaultWalker4
                     Talk(SAY_SUMMON_VAULT_WALKERS);
                     bVaultWalkersAwake = true;
                 }
@@ -297,7 +297,7 @@ class npc_archaedas_minions : public CreatureScript
                 {
                     bWakingUp = false;
                     bAmIAwake = true;
-                    // AttackStart(ObjectAccessor::GetUnit(*me, instance->GetData64(0))); // whoWokeArchaedasGUID
+                    // AttackStart(ObjectAccessor::GetUnit(*me, instance->GetGuidData(0))); // whoWokeArchaedasGUID
                     return;     // dont want to continue until we finish the AttackStart method
                 }
 
@@ -401,7 +401,7 @@ class go_altar_of_archaedas : public GameObjectScript
 
             player->CastSpell (player, SPELL_BOSS_OBJECT_VISUAL, false);
 
-            instance->SetData64(0, player->GetGUID());     // activate archaedas
+            instance->SetGuidData(0, player->GetGUID());     // activate archaedas
             return false;
         }
 };
diff --git a/src/server/scripts/EasternKingdoms/Uldaman/instance_uldaman.cpp b/src/server/scripts/EasternKingdoms/Uldaman/instance_uldaman.cpp
index 17a6440702e..956f7099596 100644
--- a/src/server/scripts/EasternKingdoms/Uldaman/instance_uldaman.cpp
+++ b/src/server/scripts/EasternKingdoms/Uldaman/instance_uldaman.cpp
@@ -52,18 +52,6 @@ class instance_uldaman : public InstanceMapScript
                 SetHeaders(DataHeader);
                 memset(&m_auiEncounter, 0, sizeof(m_auiEncounter));
 
-                archaedasGUID = 0;
-                ironayaGUID = 0;
-                whoWokeuiArchaedasGUID = 0;
-
-                altarOfTheKeeperTempleDoor = 0;
-                archaedasTempleDoor = 0;
-                ancientVaultDoor = 0;
-
-                ironayaSealDoor = 0;
-
-                keystoneGUID = 0;
-
                 ironayaSealDoorTimer = 27000; //animation time
                 keystoneCheck = false;
             }
@@ -77,25 +65,25 @@ class instance_uldaman : public InstanceMapScript
                 return false;
             }
 
-            uint64 archaedasGUID;
-            uint64 ironayaGUID;
-            uint64 whoWokeuiArchaedasGUID;
+            ObjectGuid archaedasGUID;
+            ObjectGuid ironayaGUID;
+            ObjectGuid whoWokeuiArchaedasGUID;
 
-            uint64 altarOfTheKeeperTempleDoor;
-            uint64 archaedasTempleDoor;
-            uint64 ancientVaultDoor;
-            uint64 ironayaSealDoor;
+            ObjectGuid altarOfTheKeeperTempleDoor;
+            ObjectGuid archaedasTempleDoor;
+            ObjectGuid ancientVaultDoor;
+            ObjectGuid ironayaSealDoor;
 
-            uint64 keystoneGUID;
+            ObjectGuid keystoneGUID;
 
             uint32 ironayaSealDoorTimer;
             bool keystoneCheck;
 
-            std::vector<uint64> stoneKeepers;
-            std::vector<uint64> altarOfTheKeeperCounts;
-            std::vector<uint64> vaultWalkers;
-            std::vector<uint64> earthenGuardians;
-            std::vector<uint64> archaedasWallMinions;    // minions lined up around the wall
+            GuidVector stoneKeepers;
+            GuidVector altarOfTheKeeperCounts;
+            GuidVector vaultWalkers;
+            GuidVector earthenGuardians;
+            GuidVector archaedasWallMinions;    // minions lined up around the wall
 
             uint32 m_auiEncounter[MAX_ENCOUNTER];
             std::string str_data;
@@ -108,14 +96,14 @@ class instance_uldaman : public InstanceMapScript
                         altarOfTheKeeperTempleDoor = go->GetGUID();
 
                         if (m_auiEncounter[0] == DONE)
-                           HandleGameObject(0, true, go);
+                           HandleGameObject(ObjectGuid::Empty, true, go);
                         break;
 
                     case GO_ARCHAEDAS_TEMPLE_DOOR:
                         archaedasTempleDoor = go->GetGUID();
 
                         if (m_auiEncounter[0] == DONE)
-                            HandleGameObject(0, true, go);
+                            HandleGameObject(ObjectGuid::Empty, true, go);
                         break;
 
                     case GO_ANCIENT_VAULT_DOOR:
@@ -124,14 +112,14 @@ class instance_uldaman : public InstanceMapScript
                         ancientVaultDoor = go->GetGUID();
 
                         if (m_auiEncounter[1] == DONE)
-                            HandleGameObject(0, true, go);
+                            HandleGameObject(ObjectGuid::Empty, true, go);
                         break;
 
                     case GO_IRONAYA_SEAL_DOOR:
                         ironayaSealDoor = go->GetGUID();
 
                         if (m_auiEncounter[2] == DONE)
-                            HandleGameObject(0, true, go);
+                            HandleGameObject(ObjectGuid::Empty, true, go);
                         break;
 
                     case GO_KEYSTONE:
@@ -139,7 +127,7 @@ class instance_uldaman : public InstanceMapScript
 
                         if (m_auiEncounter[2] == DONE)
                         {
-                            HandleGameObject(0, true, go);
+                            HandleGameObject(ObjectGuid::Empty, true, go);
                             go->SetUInt32Value(GAMEOBJECT_FLAGS, GO_FLAG_INTERACT_COND);
                         }
                         break;
@@ -155,7 +143,7 @@ class instance_uldaman : public InstanceMapScript
                 creature->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_DISABLE_MOVE);
             }
 
-            void SetDoor(uint64 guid, bool open)
+            void SetDoor(ObjectGuid guid, bool open)
             {
                 GameObject* go = instance->GetGameObject(guid);
                 if (!go)
@@ -164,7 +152,7 @@ class instance_uldaman : public InstanceMapScript
                 HandleGameObject(guid, open);
             }
 
-            void BlockGO(uint64 guid)
+            void BlockGO(ObjectGuid guid)
             {
                 GameObject* go = instance->GetGameObject(guid);
                 if (!go)
@@ -177,7 +165,7 @@ class instance_uldaman : public InstanceMapScript
             {
                 if (GetData(DATA_ALTAR_DOORS) != DONE)
                 {
-                    for (std::vector<uint64>::const_iterator i = stoneKeepers.begin(); i != stoneKeepers.end(); ++i)
+                    for (GuidVector::const_iterator i = stoneKeepers.begin(); i != stoneKeepers.end(); ++i)
                     {
                         Creature* target = instance->GetCreature(*i);
                         if (!target || !target->IsAlive())
@@ -199,7 +187,7 @@ class instance_uldaman : public InstanceMapScript
                 if (!archaedas)
                     return;
 
-                for (std::vector<uint64>::const_iterator i = archaedasWallMinions.begin(); i != archaedasWallMinions.end(); ++i)
+                for (GuidVector::const_iterator i = archaedasWallMinions.begin(); i != archaedasWallMinions.end(); ++i)
                 {
                     Creature* target = instance->GetCreature(*i);
                     if (!target || !target->IsAlive() || target->getFaction() == 14)
@@ -217,7 +205,7 @@ class instance_uldaman : public InstanceMapScript
             void DeActivateMinions()
             {
                 // first despawn any aggroed wall minions
-                for (std::vector<uint64>::const_iterator i = archaedasWallMinions.begin(); i != archaedasWallMinions.end(); ++i)
+                for (GuidVector::const_iterator i = archaedasWallMinions.begin(); i != archaedasWallMinions.end(); ++i)
                 {
                     Creature* target = instance->GetCreature(*i);
                     if (!target || target->isDead() || target->getFaction() != 14)
@@ -227,7 +215,7 @@ class instance_uldaman : public InstanceMapScript
                 }
 
                 // Vault Walkers
-                for (std::vector<uint64>::const_iterator i = vaultWalkers.begin(); i != vaultWalkers.end(); ++i)
+                for (GuidVector::const_iterator i = vaultWalkers.begin(); i != vaultWalkers.end(); ++i)
                 {
                     Creature* target = instance->GetCreature(*i);
                     if (!target || target->isDead() || target->getFaction() != 14)
@@ -237,7 +225,7 @@ class instance_uldaman : public InstanceMapScript
                 }
 
                 // Earthen Guardians
-                for (std::vector<uint64>::const_iterator i = earthenGuardians.begin(); i != earthenGuardians.end(); ++i)
+                for (GuidVector::const_iterator i = earthenGuardians.begin(); i != earthenGuardians.end(); ++i)
                 {
                     Creature* target = instance->GetCreature(*i);
                     if (!target || target->isDead() || target->getFaction() != 14)
@@ -247,7 +235,7 @@ class instance_uldaman : public InstanceMapScript
                 }
             }
 
-            void ActivateArchaedas(uint64 target)
+            void ActivateArchaedas(ObjectGuid target)
             {
                 Creature* archaedas = instance->GetCreature(archaedasGUID);
                 if (!archaedas)
@@ -274,7 +262,7 @@ class instance_uldaman : public InstanceMapScript
             void RespawnMinions()
             {
                 // first respawn any aggroed wall minions
-                for (std::vector<uint64>::const_iterator i = archaedasWallMinions.begin(); i != archaedasWallMinions.end(); ++i)
+                for (GuidVector::const_iterator i = archaedasWallMinions.begin(); i != archaedasWallMinions.end(); ++i)
                 {
                     Creature* target = instance->GetCreature(*i);
                     if (target && target->isDead())
@@ -286,7 +274,7 @@ class instance_uldaman : public InstanceMapScript
                 }
 
                 // Vault Walkers
-                for (std::vector<uint64>::const_iterator i = vaultWalkers.begin(); i != vaultWalkers.end(); ++i)
+                for (GuidVector::const_iterator i = vaultWalkers.begin(); i != vaultWalkers.end(); ++i)
                 {
                     Creature* target = instance->GetCreature(*i);
                     if (target && target->isDead())
@@ -298,7 +286,7 @@ class instance_uldaman : public InstanceMapScript
                 }
 
                 // Earthen Guardians
-                for (std::vector<uint64>::const_iterator i = earthenGuardians.begin(); i != earthenGuardians.end(); ++i)
+                for (GuidVector::const_iterator i = earthenGuardians.begin(); i != earthenGuardians.end(); ++i)
                 {
                     Creature* target = instance->GetCreature(*i);
                     if (target && target->isDead())
@@ -394,7 +382,7 @@ class instance_uldaman : public InstanceMapScript
                 }
             }
 
-            void SetData64(uint32 type, uint64 data) override
+            void SetGuidData(uint32 type, ObjectGuid data) override
             {
                 // Archaedas
                 if (type == 0)
@@ -470,7 +458,7 @@ class instance_uldaman : public InstanceMapScript
                 }
             }
 
-            uint64 GetData64(uint32 identifier) const override
+            ObjectGuid GetGuidData(uint32 identifier) const override
             {
                 switch (identifier)
                 {
@@ -492,8 +480,8 @@ class instance_uldaman : public InstanceMapScript
                         break;
                 }
 
-                return 0;
-            } // end GetData64
+                return ObjectGuid::Empty;
+            } // end GetGuidData
 
             void ProcessEvent(WorldObject* /*gameObject*/, uint32 eventId) override
             {
diff --git a/src/server/scripts/EasternKingdoms/ZulAman/instance_zulaman.cpp b/src/server/scripts/EasternKingdoms/ZulAman/instance_zulaman.cpp
index 11bf47c4cd1..7d5ff280533 100644
--- a/src/server/scripts/EasternKingdoms/ZulAman/instance_zulaman.cpp
+++ b/src/server/scripts/EasternKingdoms/ZulAman/instance_zulaman.cpp
@@ -32,14 +32,6 @@ class instance_zulaman : public InstanceMapScript
                 SetHeaders(DataHeader);
                 SetBossNumber(EncounterCount);
 
-                AkilzonGUID             = 0;
-                NalorakkGUID            = 0;
-                JanalaiGUID             = 0;
-                HalazziGUID             = 0;
-                HexLordMalacrassGUID    = 0;
-                DaakaraGUID             = 0;
-                VoljinGUID              = 0;
-                HexLordTriggerGUID      = 0;
                 SpeedRunTimer           = 16;
                 ZulAmanState            = NOT_STARTED;
                 ZulAmanBossCount        = 0;
@@ -114,7 +106,7 @@ class instance_zulaman : public InstanceMapScript
                 }
             }
 
-            uint64 GetData64(uint32 type) const override
+            ObjectGuid GetGuidData(uint32 type) const override
             {
                 switch (type)
                 {
@@ -140,7 +132,7 @@ class instance_zulaman : public InstanceMapScript
                         break;
                 }
 
-                return 0;
+                return ObjectGuid::Empty;
             }
 
             void SetData(uint32 type, uint32 data) override
@@ -290,16 +282,16 @@ class instance_zulaman : public InstanceMapScript
 
         protected:
             EventMap events;
-            uint64 AkilzonGUID;
-            uint64 NalorakkGUID;
-            uint64 JanalaiGUID;
-            uint64 HalazziGUID;
-            uint64 HexLordMalacrassGUID;
-            uint64 DaakaraGUID;
-            uint64 VoljinGUID;
-            uint64 HexLordTriggerGUID;
-            uint64 StrangeGongGUID;
-            uint64 MasiveGateGUID;
+            ObjectGuid AkilzonGUID;
+            ObjectGuid NalorakkGUID;
+            ObjectGuid JanalaiGUID;
+            ObjectGuid HalazziGUID;
+            ObjectGuid HexLordMalacrassGUID;
+            ObjectGuid DaakaraGUID;
+            ObjectGuid VoljinGUID;
+            ObjectGuid HexLordTriggerGUID;
+            ObjectGuid StrangeGongGUID;
+            ObjectGuid MasiveGateGUID;
             uint32 SpeedRunTimer;
             uint32 ZulAmanState;
             uint32 ZulAmanBossCount;
diff --git a/src/server/scripts/EasternKingdoms/ZulAman/zulaman.cpp b/src/server/scripts/EasternKingdoms/ZulAman/zulaman.cpp
index d4b4cb3ea6b..900b7b52bd7 100644
--- a/src/server/scripts/EasternKingdoms/ZulAman/zulaman.cpp
+++ b/src/server/scripts/EasternKingdoms/ZulAman/zulaman.cpp
@@ -143,7 +143,7 @@ class npc_voljin_zulaman : public CreatureScript
                             _events.ScheduleEvent(EVENT_BANGING_THE_GONG, 3000);
                         case EVENT_BANGING_THE_GONG:
                             DoCast(me, SPELL_BANGING_THE_GONG);
-                            if (GameObject* strangeGong = ObjectAccessor::GetGameObject(*me, _instance->GetData64(DATA_STRANGE_GONG)))
+                            if (GameObject* strangeGong = ObjectAccessor::GetGameObject(*me, _instance->GetGuidData(DATA_STRANGE_GONG)))
                                 strangeGong->RemoveFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
                             me->SetUInt32Value(UNIT_VIRTUAL_ITEM_SLOT_ID, uint32(ITEM_VIRTUAL_ITEM));
                             break;
@@ -153,7 +153,7 @@ class npc_voljin_zulaman : public CreatureScript
                             break;
                         case EVENT_START_DOOR_OPENING_2:
                             me->SetUInt32Value(UNIT_VIRTUAL_ITEM_SLOT_ID, uint32(0));
-                            if (GameObject* strangeGong = ObjectAccessor::GetGameObject(*me, _instance->GetData64(DATA_STRANGE_GONG)))
+                            if (GameObject* strangeGong = ObjectAccessor::GetGameObject(*me, _instance->GetGuidData(DATA_STRANGE_GONG)))
                                 strangeGong->SetFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
                             _events.ScheduleEvent(EVENT_START_DOOR_OPENING_3, 500);
                             break;
@@ -162,7 +162,7 @@ class npc_voljin_zulaman : public CreatureScript
                             break;
                         case EVENT_START_DOOR_OPENING_4:
                             _instance->SetData(DATA_ZULAMAN_STATE, IN_PROGRESS);
-                            if (GameObject* masiveGate = ObjectAccessor::GetGameObject(*me, _instance->GetData64(DATA_MASSIVE_GATE)))
+                            if (GameObject* masiveGate = ObjectAccessor::GetGameObject(*me, _instance->GetGuidData(DATA_MASSIVE_GATE)))
                                 masiveGate->SetGoState(GO_STATE_ACTIVE);
                             _events.ScheduleEvent(EVENT_START_DOOR_OPENING_5, 3000);
                             break;
@@ -174,7 +174,7 @@ class npc_voljin_zulaman : public CreatureScript
                             _events.ScheduleEvent(EVENT_START_DOOR_OPENING_7, 6000);
                             break;
                         case EVENT_START_DOOR_OPENING_7:
-                            if (Creature* hexLordTrigger = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_HEXLORD_TRIGGER)))
+                            if (Creature* hexLordTrigger = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_HEXLORD_TRIGGER)))
                                 sCreatureTextMgr->SendChat(hexLordTrigger, SAY_HEXLOR_INTRO, 0, CHAT_MSG_ADDON, LANG_ADDON, TEXT_RANGE_MAP);
                             break;
                         default:
@@ -191,7 +191,7 @@ class npc_voljin_zulaman : public CreatureScript
                 switch (pointId)
                 {
                     case POINT_STRANGE_GONG:
-                        if (GameObject* strangeGong = ObjectAccessor::GetGameObject(*me, _instance->GetData64(DATA_STRANGE_GONG)))
+                        if (GameObject* strangeGong = ObjectAccessor::GetGameObject(*me, _instance->GetGuidData(DATA_STRANGE_GONG)))
                             me->SetFacingToObject(strangeGong); // setInFront
                         break;
                     case POINT_START_DOOR_OPENING_1:
diff --git a/src/server/scripts/EasternKingdoms/ZulGurub/boss_mandokir.cpp b/src/server/scripts/EasternKingdoms/ZulGurub/boss_mandokir.cpp
index bb355be52a9..b278916c8a3 100644
--- a/src/server/scripts/EasternKingdoms/ZulGurub/boss_mandokir.cpp
+++ b/src/server/scripts/EasternKingdoms/ZulGurub/boss_mandokir.cpp
@@ -118,7 +118,7 @@ class boss_mandokir : public CreatureScript
                 me->SummonCreatureGroup(SUMMON_GROUP_CHAINED_SPIRIT);
                 _ohganotSoFast = true;
                 _reanimateOhganCooldown = false;
-                _reviveGUID = 0;
+                _reviveGUID.Clear();
             }
 
             void EnterCombat(Unit* /*who*/) override
@@ -130,7 +130,7 @@ class boss_mandokir : public CreatureScript
 
                 if (!summons.empty())
                 {
-                    for (std::list<uint64>::const_iterator itr = summons.begin(); itr != summons.end(); ++itr)
+                    for (SummonList::const_iterator itr = summons.begin(); itr != summons.end(); ++itr)
                     {
                         if (Creature* chainedSpirit = ObjectAccessor::GetCreature(*me, *itr))
                             if (chainedSpirit->GetEntry() == NPC_CHAINED_SPIRIT && chainedSpirit->AI())
@@ -196,7 +196,7 @@ class boss_mandokir : public CreatureScript
                             {
                                 chainedSpirit->AI()->SetGUID(_reviveGUID);
                                 chainedSpirit->AI()->DoAction(ACTION_REVIVE);
-                                _reviveGUID = 0;
+                                _reviveGUID.Clear();
                             }
                         }
                         break;
@@ -215,7 +215,7 @@ class boss_mandokir : public CreatureScript
                 return 0;
             }
 
-            void SetGUID(uint64 guid, int32 /*type = 0 */) override
+            void SetGUID(ObjectGuid guid, int32 /*type = 0 */) override
             {
                 _reviveGUID = guid;
             }
@@ -280,7 +280,7 @@ class boss_mandokir : public CreatureScript
         private:
             bool _ohganotSoFast;
             bool _reanimateOhganCooldown;
-            uint64 _reviveGUID;
+            ObjectGuid _reviveGUID;
         };
 
         CreatureAI* GetAI(Creature* creature) const override
@@ -309,15 +309,15 @@ class npc_ohgan : public CreatureScript
             void DamageTaken(Unit* /*attacker*/, uint32& damage) override
             {
                 if (damage >= me->GetHealth())
-                {
+                 {
                     damage = 0;
                     me->AttackStop();
                     me->SetHealth(0);
-                    me->SetTarget(0);
+                    me->SetTarget(ObjectGuid::Empty);
                     DoCast(me, SPELL_CLEAR_ALL, true);
                     DoCast(me, SPELL_PERMANENT_FEIGN_DEATH);
 
-                    if (Creature* mandokir = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_MANDOKIR)))
+                    if (Creature* mandokir = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_MANDOKIR)))
                         mandokir->AI()->DoAction(ACTION_OHGAN_IS_DEATH);
                 }
             }
@@ -365,10 +365,10 @@ class npc_chained_spirit : public CreatureScript
 
             void Reset() override
             {
-                _revivePlayerGUID = 0;
+                _revivePlayerGUID.Clear();
             }
 
-            void SetGUID(uint64 guid, int32 /*type = 0 */) override
+            void SetGUID(ObjectGuid guid, int32 /*type = 0 */) override
             {
                 _revivePlayerGUID = guid;
             }
@@ -406,7 +406,7 @@ class npc_chained_spirit : public CreatureScript
                 if (!target || target->IsAlive())
                     return;
 
-                if (Creature* mandokir = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_MANDOKIR)))
+                if (Creature* mandokir = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_MANDOKIR)))
                 {
                     mandokir->GetAI()->SetGUID(target->GetGUID());
                     mandokir->GetAI()->DoAction(ACTION_START_REVIVE);
@@ -419,7 +419,7 @@ class npc_chained_spirit : public CreatureScript
 
         private:
             InstanceScript* _instance;
-            uint64 _revivePlayerGUID;
+            ObjectGuid _revivePlayerGUID;
         };
 
         CreatureAI* GetAI(Creature* creature) const override
diff --git a/src/server/scripts/EasternKingdoms/ZulGurub/instance_zulgurub.cpp b/src/server/scripts/EasternKingdoms/ZulGurub/instance_zulgurub.cpp
index 581839315da..914f06ee033 100644
--- a/src/server/scripts/EasternKingdoms/ZulGurub/instance_zulgurub.cpp
+++ b/src/server/scripts/EasternKingdoms/ZulGurub/instance_zulgurub.cpp
@@ -42,16 +42,6 @@ class instance_zulgurub : public InstanceMapScript
                 SetHeaders(DataHeader);
                 SetBossNumber(EncounterCount);
                 LoadDoorData(doorData);
-                venoxisGUID         = 0;
-                mandokirGUID        = 0;
-                kilnaraGUID         = 0;
-                zanzilGUID          = 0;
-                jindoGUID           = 0;
-                hazzarahGUID        = 0;
-                renatakiGUID        = 0;
-                wushoolayGUID       = 0;
-                grilekGUID          = 0;
-                jindoTiggerGUID     = 0;
             }
 
             void OnCreatureCreate(Creature* creature) override
@@ -167,7 +157,7 @@ class instance_zulgurub : public InstanceMapScript
             }
             */
 
-            uint64 GetData64(uint32 type) const override
+            ObjectGuid GetGuidData(uint32 type) const override
             {
                 switch (type)
                 {
@@ -195,20 +185,20 @@ class instance_zulgurub : public InstanceMapScript
                         break;
                 }
 
-                return 0;
+                return ObjectGuid::Empty;
             }
 
         protected:
-             uint64 venoxisGUID;
-             uint64 mandokirGUID;
-             uint64 kilnaraGUID;
-             uint64 zanzilGUID;
-             uint64 jindoGUID;
-             uint64 hazzarahGUID;
-             uint64 renatakiGUID;
-             uint64 wushoolayGUID;
-             uint64 grilekGUID;
-             uint64 jindoTiggerGUID;
+            ObjectGuid venoxisGUID;
+            ObjectGuid mandokirGUID;
+            ObjectGuid kilnaraGUID;
+            ObjectGuid zanzilGUID;
+            ObjectGuid jindoGUID;
+            ObjectGuid hazzarahGUID;
+            ObjectGuid renatakiGUID;
+            ObjectGuid wushoolayGUID;
+            ObjectGuid grilekGUID;
+            ObjectGuid jindoTiggerGUID;
         };
 
         InstanceScript* GetInstanceScript(InstanceMap* map) const override
diff --git a/src/server/scripts/EasternKingdoms/zone_undercity.cpp b/src/server/scripts/EasternKingdoms/zone_undercity.cpp
index ea997c5563f..48f614a73c0 100644
--- a/src/server/scripts/EasternKingdoms/zone_undercity.cpp
+++ b/src/server/scripts/EasternKingdoms/zone_undercity.cpp
@@ -108,7 +108,7 @@ public:
         {
             LamentEventTimer = 5000;
             LamentEvent = false;
-            targetGUID = 0;
+            targetGUID.Clear();
 
             FadeTimer = 30000;
             SummonSkeletonTimer = 20000;
@@ -119,7 +119,7 @@ public:
 
         uint32 LamentEventTimer;
         bool LamentEvent;
-        uint64 targetGUID;
+        ObjectGuid targetGUID;
 
         uint32 FadeTimer;
         uint32 SummonSkeletonTimer;
diff --git a/src/server/scripts/EasternKingdoms/zone_western_plaguelands.cpp b/src/server/scripts/EasternKingdoms/zone_western_plaguelands.cpp
index d242d17806c..952d191bd1a 100644
--- a/src/server/scripts/EasternKingdoms/zone_western_plaguelands.cpp
+++ b/src/server/scripts/EasternKingdoms/zone_western_plaguelands.cpp
@@ -322,7 +322,6 @@ public:
         npc_anchorite_truuenAI(Creature* creature) : npc_escortAI(creature)
         {
             Initialize();
-            UghostGUID = 0;
         }
 
         void Initialize()
@@ -332,7 +331,7 @@ public:
 
         uint32 m_uiChatTimer;
 
-        uint64 UghostGUID;
+        ObjectGuid UghostGUID;
 
         void Reset() override
         {
diff --git a/src/server/scripts/Events/childrens_week.cpp b/src/server/scripts/Events/childrens_week.cpp
index 4bc0642e348..6e95b9351fd 100644
--- a/src/server/scripts/Events/childrens_week.cpp
+++ b/src/server/scripts/Events/childrens_week.cpp
@@ -131,13 +131,13 @@ enum Misc
     DISPLAY_INVISIBLE                       = 11686
 };
 
-uint64 getOrphanGUID(Player* player, uint32 orphan)
+ObjectGuid getOrphanGUID(Player* player, uint32 orphan)
 {
     if (Aura* orphanOut = player->GetAura(SPELL_ORPHAN_OUT))
         if (orphanOut->GetCaster() && orphanOut->GetCaster()->GetEntry() == orphan)
             return orphanOut->GetCaster()->GetGUID();
 
-    return 0;
+    return ObjectGuid::Empty;
 }
 
 /*######
@@ -159,8 +159,8 @@ class npc_winterfin_playmate : public CreatureScript
             {
                 timer = 0;
                 phase = 0;
-                playerGUID = 0;
-                orphanGUID = 0;
+                playerGUID.Clear();
+                orphanGUID.Clear();
             }
 
             void Reset() override
@@ -235,8 +235,8 @@ class npc_winterfin_playmate : public CreatureScript
         private:
             uint32 timer;
             int8 phase;
-            uint64 playerGUID;
-            uint64 orphanGUID;
+            ObjectGuid playerGUID;
+            ObjectGuid orphanGUID;
 
         };
 
@@ -265,8 +265,8 @@ class npc_snowfall_glade_playmate : public CreatureScript
             {
                 timer = 0;
                 phase = 0;
-                playerGUID = 0;
-                orphanGUID = 0;
+                playerGUID.Clear();
+                orphanGUID.Clear();
             }
 
             void Reset() override
@@ -342,8 +342,8 @@ class npc_snowfall_glade_playmate : public CreatureScript
         private:
             uint32 timer;
             int8 phase;
-            uint64 playerGUID;
-            uint64 orphanGUID;
+            ObjectGuid playerGUID;
+            ObjectGuid orphanGUID;
         };
 
         CreatureAI* GetAI(Creature* pCreature) const override
@@ -372,8 +372,8 @@ class npc_the_biggest_tree : public CreatureScript
             {
                 timer = 1000;
                 phase = 0;
-                playerGUID = 0;
-                orphanGUID = 0;
+                playerGUID.Clear();
+                orphanGUID.Clear();
             }
 
             void Reset() override
@@ -436,8 +436,8 @@ class npc_the_biggest_tree : public CreatureScript
         private:
             uint32 timer;
             uint8 phase;
-            uint64 playerGUID;
-            uint64 orphanGUID;
+            ObjectGuid playerGUID;
+            ObjectGuid orphanGUID;
 
         };
 
@@ -466,8 +466,8 @@ class npc_high_oracle_soo_roo : public CreatureScript
             {
                 timer = 0;
                 phase = 0;
-                playerGUID = 0;
-                orphanGUID = 0;
+                playerGUID.Clear();
+                orphanGUID.Clear();
             }
 
             void Reset() override
@@ -533,8 +533,8 @@ class npc_high_oracle_soo_roo : public CreatureScript
         private:
             uint32 timer;
             int8 phase;
-            uint64 playerGUID;
-            uint64 orphanGUID;
+            ObjectGuid playerGUID;
+            ObjectGuid orphanGUID;
 
         };
 
@@ -563,8 +563,8 @@ class npc_elder_kekek : public CreatureScript
             {
                 timer = 0;
                 phase = 0;
-                playerGUID = 0;
-                orphanGUID = 0;
+                playerGUID.Clear();
+                orphanGUID.Clear();
             }
 
             void Reset() override
@@ -628,8 +628,8 @@ class npc_elder_kekek : public CreatureScript
         private:
             uint32 timer;
             int8 phase;
-            uint64 playerGUID;
-            uint64 orphanGUID;
+            ObjectGuid playerGUID;
+            ObjectGuid orphanGUID;
 
         };
 
@@ -659,8 +659,8 @@ class npc_the_etymidian : public CreatureScript
             {
                 timer = 0;
                 phase = 0;
-                playerGUID = 0;
-                orphanGUID = 0;
+                playerGUID.Clear();
+                orphanGUID.Clear();
             }
 
             void Reset() override
@@ -732,8 +732,8 @@ class npc_the_etymidian : public CreatureScript
         private:
             uint32 timer;
             int8 phase;
-            uint64 playerGUID;
-            uint64 orphanGUID;
+            ObjectGuid playerGUID;
+            ObjectGuid orphanGUID;
 
         };
 
@@ -762,8 +762,8 @@ class npc_alexstraza_the_lifebinder : public CreatureScript
             {
                 timer = 0;
                 phase = 0;
-                playerGUID = 0;
-                orphanGUID = 0;
+                playerGUID.Clear();
+                orphanGUID.Clear();
             }
 
             void Reset() override
@@ -900,8 +900,8 @@ class npc_alexstraza_the_lifebinder : public CreatureScript
             private:
                 int8 phase;
                 uint32 timer;
-                uint64 playerGUID;
-                uint64 orphanGUID;
+                ObjectGuid playerGUID;
+                ObjectGuid orphanGUID;
 
         };
 
diff --git a/src/server/scripts/Examples/example_escort.cpp b/src/server/scripts/Examples/example_escort.cpp
index 88188a45296..229d32e6c4a 100644
--- a/src/server/scripts/Examples/example_escort.cpp
+++ b/src/server/scripts/Examples/example_escort.cpp
@@ -166,7 +166,7 @@ class example_escort : public CreatureScript
                     {
                         if (m_uiChatTimer <= uiDiff)
                         {
-                            if (me->HasAura(SPELL_ELIXIR_OF_FORTITUDE, 0))
+                            if (me->HasAura(SPELL_ELIXIR_OF_FORTITUDE))
                             {
                                 Talk(SAY_RAND_1);
                                 DoCast(me, SPELL_BLUE_FIREWORK, false);
diff --git a/src/server/scripts/Examples/example_spell.cpp b/src/server/scripts/Examples/example_spell.cpp
index 9097f7cd650..f90cc069780 100644
--- a/src/server/scripts/Examples/example_spell.cpp
+++ b/src/server/scripts/Examples/example_spell.cpp
@@ -117,11 +117,11 @@ class spell_ex_5581 : public SpellScriptLoader
 
             void HandleDummyLaunchTarget(SpellEffIndex /*effIndex*/)
             {
-                uint64 targetGUID = 0;
+                ObjectGuid targetGUID;
                 if (Unit* unitTarget = GetHitUnit())
                     targetGUID = unitTarget->GetGUID();
                 // we're handling SPELL_EFFECT_DUMMY in effIndex 0 here
-                TC_LOG_INFO("misc", "Spell %u with SPELL_EFFECT_DUMMY is just launched at it's target: " UI64FMTD "!", GetSpellInfo()->Id, targetGUID);
+                TC_LOG_INFO("misc", "Spell %u with SPELL_EFFECT_DUMMY is just launched at it's target: " UI64FMTD "!", GetSpellInfo()->Id, targetGUID.GetRawValue());
             }
 
             void HandleDummyHit(SpellEffIndex /*effIndex*/)
diff --git a/src/server/scripts/Kalimdor/BlackfathomDeeps/blackfathom_deeps.cpp b/src/server/scripts/Kalimdor/BlackfathomDeeps/blackfathom_deeps.cpp
index f8ba2ab6646..0fe3eee2805 100644
--- a/src/server/scripts/Kalimdor/BlackfathomDeeps/blackfathom_deeps.cpp
+++ b/src/server/scripts/Kalimdor/BlackfathomDeeps/blackfathom_deeps.cpp
@@ -210,7 +210,7 @@ public:
         {
             Talk(SAY_MORRIDUNE_1);
             me->RemoveFlag(UNIT_NPC_FLAGS, UNIT_NPC_FLAG_GOSSIP);
-            Start(false, false, 0);
+            Start(false);
         }
 
         void WaypointReached(uint32 waypointId) override
diff --git a/src/server/scripts/Kalimdor/BlackfathomDeeps/instance_blackfathom_deeps.cpp b/src/server/scripts/Kalimdor/BlackfathomDeeps/instance_blackfathom_deeps.cpp
index 28b414ba9ca..b23d0cdaa3c 100644
--- a/src/server/scripts/Kalimdor/BlackfathomDeeps/instance_blackfathom_deeps.cpp
+++ b/src/server/scripts/Kalimdor/BlackfathomDeeps/instance_blackfathom_deeps.cpp
@@ -66,14 +66,14 @@ public:
     {
         instance_blackfathom_deeps_InstanceMapScript(Map* map) : InstanceScript(map) { }
 
-        uint64 twilightLordKelrisGUID;
-        uint64 shrine1GUID;
-        uint64 shrine2GUID;
-        uint64 shrine3GUID;
-        uint64 shrine4GUID;
-        uint64 shrineOfGelihastGUID;
-        uint64 altarOfTheDeepsGUID;
-        uint64 mainDoorGUID;
+        ObjectGuid twilightLordKelrisGUID;
+        ObjectGuid shrine1GUID;
+        ObjectGuid shrine2GUID;
+        ObjectGuid shrine3GUID;
+        ObjectGuid shrine4GUID;
+        ObjectGuid shrineOfGelihastGUID;
+        ObjectGuid altarOfTheDeepsGUID;
+        ObjectGuid mainDoorGUID;
 
         uint8 encounter[MAX_ENCOUNTER];
         uint8 countFires;
@@ -84,14 +84,6 @@ public:
             SetHeaders(DataHeader);
             memset(&encounter, 0, sizeof(encounter));
 
-            twilightLordKelrisGUID = 0;
-            shrine1GUID = 0;
-            shrine2GUID = 0;
-            shrine3GUID = 0;
-            shrine4GUID = 0;
-            shrineOfGelihastGUID = 0;
-            altarOfTheDeepsGUID = 0;
-            mainDoorGUID = 0;
             countFires = 0;
             deathTimes = 0;
         }
@@ -137,7 +129,7 @@ public:
                     break;
                 case GO_AKU_MAI_DOOR:
                     if (encounter[2] == DONE)
-                        HandleGameObject(0, true, go);
+                        HandleGameObject(ObjectGuid::Empty, true, go);
                     mainDoorGUID = go->GetGUID();
                     break;
             }
@@ -234,7 +226,7 @@ public:
             return 0;
         }
 
-        uint64 GetData64(uint32 data) const override
+        ObjectGuid GetGuidData(uint32 data) const override
         {
             switch (data)
             {
@@ -254,7 +246,7 @@ public:
                     return mainDoorGUID;
             }
 
-            return 0;
+            return ObjectGuid::Empty;
         }
     };
 };
diff --git a/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/boss_anetheron.cpp b/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/boss_anetheron.cpp
index 782632602b3..131f875bc05 100644
--- a/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/boss_anetheron.cpp
+++ b/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/boss_anetheron.cpp
@@ -100,7 +100,7 @@ public:
         {
             if (waypointId == 7)
             {
-                Unit* target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_JAINAPROUDMOORE));
+                Unit* target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_JAINAPROUDMOORE));
                 if (target && target->IsAlive())
                     me->AddThreat(target, 0.0f);
             }
@@ -194,12 +194,12 @@ public:
             ImmolationTimer = 5000;
             CheckTimer = 5000;
             instance = creature->GetInstanceScript();
-            AnetheronGUID = instance->GetData64(DATA_ANETHERON);
+            AnetheronGUID = instance->GetGuidData(DATA_ANETHERON);
         }
 
         uint32 ImmolationTimer;
         uint32 CheckTimer;
-        uint64 AnetheronGUID;
+        ObjectGuid AnetheronGUID;
         InstanceScript* instance;
 
         void Reset() override
diff --git a/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/boss_archimonde.cpp b/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/boss_archimonde.cpp
index 2885a838cee..992b20d2580 100644
--- a/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/boss_archimonde.cpp
+++ b/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/boss_archimonde.cpp
@@ -97,18 +97,18 @@ public:
         void Initialize()
         {
             CheckTimer = 1000;
-            ArchimondeGUID = 0;
+            ArchimondeGUID.Clear();
         }
 
         InstanceScript* instance;
-        uint64 ArchimondeGUID;
+        ObjectGuid ArchimondeGUID;
         uint32 CheckTimer;
 
         void Reset() override
         {
             Initialize();
 
-            ArchimondeGUID = instance->GetData64(DATA_ARCHIMONDE);
+            ArchimondeGUID = instance->GetGuidData(DATA_ARCHIMONDE);
 
             me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
         }
@@ -187,11 +187,11 @@ public:
 
         void Initialize()
         {
-            TargetGUID = 0;
+            TargetGUID.Clear();
             ChangeTargetTimer = 5000;
         }
 
-        uint64 TargetGUID;
+        ObjectGuid TargetGUID;
         uint32 ChangeTargetTimer;
 
         void Reset() override
@@ -222,7 +222,7 @@ public:
                 if (Unit* temp = ObjectAccessor::GetUnit(*me, TargetGUID))
                 {
                     me->GetMotionMaster()->MoveFollow(temp, 0.0f, 0.0f);
-                    TargetGUID = 0;
+                    TargetGUID.Clear();
                 }
                 else
                 {
@@ -264,9 +264,9 @@ public:
 
         void Initialize()
         {
-            DoomfireSpiritGUID = 0;
+            DoomfireSpiritGUID.Clear();
             damageTaken = 0;
-            WorldTreeGUID = 0;
+            WorldTreeGUID.Clear();
 
             DrainNordrassilTimer = 0;
             FearTimer = 42000;
@@ -290,8 +290,8 @@ public:
 
         InstanceScript* instance;
 
-        uint64 DoomfireSpiritGUID;
-        uint64 WorldTreeGUID;
+        ObjectGuid DoomfireSpiritGUID;
+        ObjectGuid WorldTreeGUID;
 
         uint32 DrainNordrassilTimer;
         uint32 FearTimer;
@@ -429,7 +429,7 @@ public:
                 if (Unit* DoomfireSpirit = ObjectAccessor::GetUnit(*me, DoomfireSpiritGUID))
                 {
                     summoned->GetMotionMaster()->MoveFollow(DoomfireSpirit, 0.0f, 0.0f);
-                    DoomfireSpiritGUID = 0;
+                    DoomfireSpiritGUID.Clear();
                 }
             }
         }
diff --git a/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/boss_azgalor.cpp b/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/boss_azgalor.cpp
index 7e50fd7b775..aa411707952 100644
--- a/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/boss_azgalor.cpp
+++ b/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/boss_azgalor.cpp
@@ -105,7 +105,7 @@ public:
         {
             if (waypointId == 7 && instance)
             {
-                Unit* target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_THRALL));
+                Unit* target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_THRALL));
                 if (target && target->IsAlive())
                     me->AddThreat(target, 0.0f);
             }
@@ -201,13 +201,13 @@ public:
             WarstompTimer = 10000;
             CheckTimer = 5000;
             instance = creature->GetInstanceScript();
-            AzgalorGUID = instance->GetData64(DATA_AZGALOR);
+            AzgalorGUID = instance->GetGuidData(DATA_AZGALOR);
         }
 
         uint32 CrippleTimer;
         uint32 WarstompTimer;
         uint32 CheckTimer;
-        uint64 AzgalorGUID;
+        ObjectGuid AzgalorGUID;
         InstanceScript* instance;
 
         void Reset() override
diff --git a/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/boss_kazrogal.cpp b/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/boss_kazrogal.cpp
index dcad4480fde..22c10fcec10 100644
--- a/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/boss_kazrogal.cpp
+++ b/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/boss_kazrogal.cpp
@@ -100,7 +100,7 @@ public:
         {
             if (waypointId == 7 && instance)
             {
-                Unit* target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_THRALL));
+                Unit* target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_THRALL));
                 if (target && target->IsAlive())
                     me->AddThreat(target, 0.0f);
             }
diff --git a/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/boss_rage_winterchill.cpp b/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/boss_rage_winterchill.cpp
index 5ce9b30eb58..cecad84e099 100644
--- a/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/boss_rage_winterchill.cpp
+++ b/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/boss_rage_winterchill.cpp
@@ -95,7 +95,7 @@ public:
         {
             if (waypointId == 7 && instance)
             {
-                Unit* target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_JAINAPROUDMOORE));
+                Unit* target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_JAINAPROUDMOORE));
                 if (target && target->IsAlive())
                     me->AddThreat(target, 0.0f);
             }
diff --git a/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/hyjalAI.cpp b/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/hyjalAI.cpp
index b5c226b15cb..a4745eade7d 100644
--- a/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/hyjalAI.cpp
+++ b/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/hyjalAI.cpp
@@ -321,8 +321,6 @@ hyjalAI::hyjalAI(Creature* creature) : npc_escortAI(creature), Summons(me)
     instance = creature->GetInstanceScript();
     VeinsSpawned[0] = false;
     VeinsSpawned[1] = false;
-    for (uint8 i=0; i<14; ++i)
-        VeinGUID[i] = 0;
     InfernalCount = 0;
     TeleportTimer = 1000;
     Overrun = false;
@@ -335,7 +333,6 @@ hyjalAI::hyjalAI(Creature* creature) : npc_escortAI(creature), Summons(me)
     DoRespawn = false;
     MassTeleportTimer = 0;
     DoMassTeleport = false;
-    DummyGuid = 0;
 }
 
 void hyjalAI::Initialize()
@@ -343,9 +340,9 @@ void hyjalAI::Initialize()
     IsDummy = false;
 
     // GUIDs
-    PlayerGUID = 0;
-    BossGUID[0] = 0;
-    BossGUID[1] = 0;
+    PlayerGUID.Clear();
+    BossGUID[0].Clear();
+    BossGUID[1].Clear();
 
     // Timers
     NextWaveTimer = 10000;
@@ -651,21 +648,23 @@ void hyjalAI::SpawnVeins()
     {
         if (VeinsSpawned[0])//prevent any buggers
             return;
-        for (uint8 i = 0; i<7; ++i)
+        for (uint8 i = 0; i < 7; ++i)
         {
             GameObject* gem = me->SummonGameObject(GO_ANCIENT_VEIN, VeinPos[i][0], VeinPos[i][1], VeinPos[i][2], VeinPos[i][3], VeinPos[i][4], VeinPos[i][5], VeinPos[i][6], VeinPos[i][7], 0);
             if (gem)
                 VeinGUID[i]=gem->GetGUID();
         }
         VeinsSpawned[0] = true;
-    }else{
+    }
+    else
+    {
         if (VeinsSpawned[1])
             return;
-        for (uint8 i = 7; i<14; ++i)
+        for (uint8 i = 7; i < 14; ++i)
         {
             GameObject* gem = me->SummonGameObject(GO_ANCIENT_VEIN, VeinPos[i][0], VeinPos[i][1], VeinPos[i][2], VeinPos[i][3], VeinPos[i][4], VeinPos[i][5], VeinPos[i][6], VeinPos[i][7], 0);
             if (gem)
-                VeinGUID[i]=gem->GetGUID();
+                VeinGUID[i] = gem->GetGUID();
         }
         VeinsSpawned[1] = true;
     }
@@ -675,22 +674,25 @@ void hyjalAI::DeSpawnVeins()
 {
     if (Faction == 1)
     {
-        Creature* unit=ObjectAccessor::GetCreature((*me), instance->GetData64(DATA_JAINAPROUDMOORE));
+        Creature* unit=ObjectAccessor::GetCreature((*me), instance->GetGuidData(DATA_JAINAPROUDMOORE));
         if (!unit)return;
         hyjalAI* ai = CAST_AI(hyjalAI, unit->AI());
         if (!ai)return;
-        for (uint8 i = 0; i<7; ++i)
+        for (uint8 i = 0; i < 7; ++i)
         {
             if (GameObject* gem = instance->instance->GetGameObject(ai->VeinGUID[i]))
                 gem->Delete();
         }
-    } else if (Faction)
+    }
+    else if (Faction)
     {
-        Creature* unit=ObjectAccessor::GetCreature((*me), instance->GetData64(DATA_THRALL));
-        if (!unit)return;
+        Creature* unit=ObjectAccessor::GetCreature((*me), instance->GetGuidData(DATA_THRALL));
+        if (!unit)
+            return;
         hyjalAI* ai = CAST_AI(hyjalAI, unit->AI());
-        if (!ai)return;
-        for (uint8 i = 7; i<14; ++i)
+        if (!ai)
+            return;
+        for (uint8 i = 7; i < 14; ++i)
         {
             if (GameObject* gem = instance->instance->GetGameObject(ai->VeinGUID[i]))
                 gem->Delete();
@@ -706,7 +708,9 @@ void hyjalAI::UpdateAI(uint32 diff)
         {
             DoCast(me, SPELL_MASS_TELEPORT, false);
             DoMassTeleport = false;
-        } else MassTeleportTimer -= diff;
+        }
+        else
+            MassTeleportTimer -= diff;
         return;
     }
     if (DoHide)
@@ -830,7 +834,7 @@ void hyjalAI::UpdateAI(uint32 diff)
                     EventBegun = false;
                     CheckTimer = 0;
                     me->SetFlag(UNIT_NPC_FLAGS, UNIT_NPC_FLAG_GOSSIP);
-                    BossGUID[i] = 0;
+                    BossGUID[i].Clear();
                     instance->DoUpdateWorldState(WORLD_STATE_ENEMY, 0); // Reset world state for enemies to disable it
                 }
             }
diff --git a/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/hyjalAI.h b/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/hyjalAI.h
index 43afc58879c..468decbd43a 100644
--- a/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/hyjalAI.h
+++ b/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/hyjalAI.h
@@ -160,9 +160,9 @@ struct hyjalAI : public npc_escortAI
     public:
         InstanceScript* instance;
 
-        uint64 PlayerGUID;
-        uint64 BossGUID[2];
-        uint64 VeinGUID[14];
+        ObjectGuid PlayerGUID;
+        ObjectGuid BossGUID[2];
+        ObjectGuid VeinGUID[14];
 
         uint32 NextWaveTimer;
         uint32 WaveCount;
@@ -193,7 +193,7 @@ struct hyjalAI : public npc_escortAI
         bool IsDummy;
         uint32 MassTeleportTimer;
         bool DoMassTeleport;
-        uint64 DummyGuid;
+        ObjectGuid DummyGuid;
 
         struct Spell
         {
diff --git a/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/hyjal_trash.cpp b/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/hyjal_trash.cpp
index 8e1a78ea5f2..c6adbd58c4a 100644
--- a/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/hyjal_trash.cpp
+++ b/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/hyjal_trash.cpp
@@ -447,7 +447,7 @@ public:
             {
                 if (instance->GetData(DATA_ALLIANCE_RETREAT))//2.alliance boss down, attack thrall
                 {
-                    Unit* target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_THRALL));
+                    Unit* target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_THRALL));
                     if (target && target->IsAlive())
                         me->AddThreat(target, 0.0f);
                 }
@@ -486,7 +486,7 @@ public:
                     CanMove = true;
                     if (instance->GetData(DATA_ALLIANCE_RETREAT) && !instance->GetData(DATA_HORDE_RETREAT))
                     {
-                        Unit* target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_THRALL));
+                        Unit* target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_THRALL));
                         if (target && target->IsAlive())
                             me->AddThreat(target, 0.0f);
                     } else if (instance->GetData(DATA_ALLIANCE_RETREAT) && instance->GetData(DATA_HORDE_RETREAT)){
@@ -563,13 +563,13 @@ public:
             {
                 if (instance->GetData(DATA_ALLIANCE_RETREAT))//2.alliance boss down, attack thrall
                 {
-                    Unit* target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_THRALL));
+                    Unit* target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_THRALL));
                     if (target && target->IsAlive())
                         me->AddThreat(target, 0.0f);
                 }
                 else
                 {
-                    Unit* target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_JAINAPROUDMOORE));
+                    Unit* target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_JAINAPROUDMOORE));
                     if (target && target->IsAlive())
                         me->AddThreat(target, 0.0f);
                 }
@@ -662,13 +662,13 @@ public:
             {
                 if (instance->GetData(DATA_ALLIANCE_RETREAT))//2.alliance boss down, attack thrall
                 {
-                    Unit* target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_THRALL));
+                    Unit* target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_THRALL));
                     if (target && target->IsAlive())
                         me->AddThreat(target, 0.0f);
                 }
                 else
                 {
-                    Unit* target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_JAINAPROUDMOORE));
+                    Unit* target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_JAINAPROUDMOORE));
                     if (target && target->IsAlive())
                         me->AddThreat(target, 0.0f);
                 }
@@ -773,13 +773,13 @@ public:
             {
                 if (instance->GetData(DATA_ALLIANCE_RETREAT))//2.alliance boss down, attack thrall
                 {
-                    Unit* target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_THRALL));
+                    Unit* target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_THRALL));
                     if (target && target->IsAlive())
                         me->AddThreat(target, 0.0f);
                 }
                 else
                 {
-                    Unit* target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_JAINAPROUDMOORE));
+                    Unit* target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_JAINAPROUDMOORE));
                     if (target && target->IsAlive())
                         me->AddThreat(target, 0.0f);
                 }
@@ -886,13 +886,13 @@ public:
             {
                 if (instance->GetData(DATA_ALLIANCE_RETREAT))//2.alliance boss down, attack thrall
                 {
-                    Unit* target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_THRALL));
+                    Unit* target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_THRALL));
                     if (target && target->IsAlive())
                         me->AddThreat(target, 0.0f);
                 }
                 else
                 {
-                    Unit* target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_JAINAPROUDMOORE));
+                    Unit* target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_JAINAPROUDMOORE));
                     if (target && target->IsAlive())
                         me->AddThreat(target, 0.0f);
                 }
@@ -982,13 +982,13 @@ public:
             {
                 if (instance->GetData(DATA_ALLIANCE_RETREAT))//2.alliance boss down, attack thrall
                 {
-                    Unit* target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_THRALL));
+                    Unit* target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_THRALL));
                     if (target && target->IsAlive())
                         me->AddThreat(target, 0.0f);
                 }
                 else
                 {
-                    Unit* target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_JAINAPROUDMOORE));
+                    Unit* target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_JAINAPROUDMOORE));
                     if (target && target->IsAlive())
                         me->AddThreat(target, 0.0f);
                 }
@@ -1068,13 +1068,13 @@ public:
             {
                 if (instance->GetData(DATA_ALLIANCE_RETREAT))//2.alliance boss down, attack thrall
                 {
-                    Unit* target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_THRALL));
+                    Unit* target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_THRALL));
                     if (target && target->IsAlive())
                         me->AddThreat(target, 0.0f);
                 }
                 else
                 {
-                    Unit* target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_JAINAPROUDMOORE));
+                    Unit* target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_JAINAPROUDMOORE));
                     if (target && target->IsAlive())
                         me->AddThreat(target, 0.0f);
                 }
@@ -1160,7 +1160,7 @@ public:
         {
             if (waypointId == 2 && !IsOverrun)
             {
-                Unit* target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_THRALL));
+                Unit* target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_THRALL));
                 if (target && target->IsAlive())
                 {
                     me->AddThreat(target, 0.0f);
@@ -1281,7 +1281,7 @@ public:
         {
             if (waypointId == 2 && !IsOverrun)
             {
-                Unit* target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_THRALL));
+                Unit* target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_THRALL));
                 if (target && target->IsAlive())
                 {
                     me->AddThreat(target, 0.0f);
diff --git a/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/instance_hyjal.cpp b/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/instance_hyjal.cpp
index 9bcc7c933fb..71835c3db94 100644
--- a/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/instance_hyjal.cpp
+++ b/src/server/scripts/Kalimdor/CavernsOfTime/BattleForMountHyjal/instance_hyjal.cpp
@@ -62,18 +62,6 @@ public:
             SetHeaders(DataHeader);
             memset(&m_auiEncounter, 0, sizeof(m_auiEncounter));
 
-            m_uiAncientGemGUID.clear();
-
-            RageWinterchill    = 0;
-            Anetheron          = 0;
-            Kazrogal           = 0;
-            Azgalor            = 0;
-            Archimonde         = 0;
-            JainaProudmoore    = 0;
-            Thrall             = 0;
-            TyrandeWhisperwind = 0;
-            HordeGate          = 0;
-            ElfGate            = 0;
             RaidDamage         = 0;
             Trash              = 0;
             hordeRetreat       = 0;
@@ -98,16 +86,16 @@ public:
                 case GO_HORDE_ENCAMPMENT_PORTAL:
                     HordeGate = go->GetGUID();
                     if (allianceRetreat)
-                        HandleGameObject(0, true, go);
+                        HandleGameObject(ObjectGuid::Empty, true, go);
                     else
-                        HandleGameObject(0, false, go);
+                        HandleGameObject(ObjectGuid::Empty, false, go);
                     break;
                 case GO_NIGHT_ELF_VILLAGE_PORTAL:
                     ElfGate = go->GetGUID();
                     if (hordeRetreat)
-                        HandleGameObject(0, true, go);
+                        HandleGameObject(ObjectGuid::Empty, true, go);
                     else
-                        HandleGameObject(0, false, go);
+                        HandleGameObject(ObjectGuid::Empty, false, go);
                     break;
                 case GO_ANCIENT_GEM:
                     m_uiAncientGemGUID.push_back(go->GetGUID());
@@ -130,7 +118,7 @@ public:
             }
         }
 
-        uint64 GetData64(uint32 identifier) const override
+        ObjectGuid GetGuidData(uint32 identifier) const override
         {
             switch (identifier)
             {
@@ -144,7 +132,7 @@ public:
                 case DATA_TYRANDEWHISPERWIND: return TyrandeWhisperwind;
             }
 
-            return 0;
+            return ObjectGuid::Empty;
         }
 
         void SetData(uint32 type, uint32 data) override
@@ -217,7 +205,7 @@ public:
                     {
                         if (!m_uiAncientGemGUID.empty())
                         {
-                            for (std::list<uint64>::const_iterator itr = m_uiAncientGemGUID.begin(); itr != m_uiAncientGemGUID.end(); ++itr)
+                            for (GuidList::const_iterator itr = m_uiAncientGemGUID.begin(); itr != m_uiAncientGemGUID.end(); ++itr)
                             {
                                 //don't know how long it expected
                                 DoRespawnGameObject(*itr, DAY);
@@ -307,17 +295,17 @@ public:
         protected:
             uint32 m_auiEncounter[EncounterCount];
             std::string str_data;
-            std::list<uint64> m_uiAncientGemGUID;
-            uint64 RageWinterchill;
-            uint64 Anetheron;
-            uint64 Kazrogal;
-            uint64 Azgalor;
-            uint64 Archimonde;
-            uint64 JainaProudmoore;
-            uint64 Thrall;
-            uint64 TyrandeWhisperwind;
-            uint64 HordeGate;
-            uint64 ElfGate;
+            GuidList m_uiAncientGemGUID;
+            ObjectGuid RageWinterchill;
+            ObjectGuid Anetheron;
+            ObjectGuid Kazrogal;
+            ObjectGuid Azgalor;
+            ObjectGuid Archimonde;
+            ObjectGuid JainaProudmoore;
+            ObjectGuid Thrall;
+            ObjectGuid TyrandeWhisperwind;
+            ObjectGuid HordeGate;
+            ObjectGuid ElfGate;
             uint32 Trash;
             uint32 hordeRetreat;
             uint32 allianceRetreat;
diff --git a/src/server/scripts/Kalimdor/CavernsOfTime/CullingOfStratholme/boss_mal_ganis.cpp b/src/server/scripts/Kalimdor/CavernsOfTime/CullingOfStratholme/boss_mal_ganis.cpp
index 7b3314ef4e9..3f74ed2eb88 100644
--- a/src/server/scripts/Kalimdor/CavernsOfTime/CullingOfStratholme/boss_mal_ganis.cpp
+++ b/src/server/scripts/Kalimdor/CavernsOfTime/CullingOfStratholme/boss_mal_ganis.cpp
@@ -150,7 +150,7 @@ public:
                         return;
                     }
 
-                    if (Creature* pArthas = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_ARTHAS)))
+                    if (Creature* pArthas = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_ARTHAS)))
                         if (pArthas->isDead())
                         {
                             EnterEvadeMode();
@@ -199,7 +199,7 @@ public:
                                 uiOutroTimer = 8000;
                                 break;
                             case 2:
-                                me->SetTarget(instance->GetData64(DATA_ARTHAS));
+                                me->SetTarget(instance->GetGuidData(DATA_ARTHAS));
                                 me->HandleEmoteCommand(29);
                                 Talk(SAY_ESCAPE_SPEECH_2);
                                 ++uiOutroStep;
diff --git a/src/server/scripts/Kalimdor/CavernsOfTime/CullingOfStratholme/culling_of_stratholme.cpp b/src/server/scripts/Kalimdor/CavernsOfTime/CullingOfStratholme/culling_of_stratholme.cpp
index 3c80be2734a..ff104a28197 100644
--- a/src/server/scripts/Kalimdor/CavernsOfTime/CullingOfStratholme/culling_of_stratholme.cpp
+++ b/src/server/scripts/Kalimdor/CavernsOfTime/CullingOfStratholme/culling_of_stratholme.cpp
@@ -360,23 +360,23 @@ public:
 
         void Initialize()
         {
-            utherGUID = 0;
-            jainaGUID = 0;
+            utherGUID.Clear();
+            jainaGUID.Clear();
 
             for (uint8 i = 0; i < 2; ++i)
-                citymenGUID[i] = 0;
+                citymenGUID[i].Clear();
 
             for (uint8 i = 0; i < ENCOUNTER_WAVES_MAX_SPAWNS; ++i)
-                waveGUID[i] = 0;
+                waveGUID[i].Clear();
 
             for (uint8 i = 0; i < ENCOUNTER_DRACONIAN_NUMBER; ++i)
-                infiniteDraconianGUID[i] = 0;
+                infiniteDraconianGUID[i].Clear();
 
-            stalkerGUID = 0;
-            bossGUID = 0;
-            epochGUID = 0;
-            malganisGUID = 0;
-            infiniteGUID = 0;
+            stalkerGUID.Clear();
+            bossGUID.Clear();
+            epochGUID.Clear();
+            malganisGUID.Clear();
+            infiniteGUID.Clear();
 
             phaseTimer = 1000;
             exorcismTimer = 7300;
@@ -393,17 +393,17 @@ public:
         uint32 wave;
         uint32 WavesCounter;
 
-        uint64 utherGUID;
-        uint64 jainaGUID;
-        uint64 citymenGUID[2];
-        uint64 waveGUID[ENCOUNTER_WAVES_MAX_SPAWNS];
-        uint64 infiniteDraconianGUID[ENCOUNTER_DRACONIAN_NUMBER];
-        uint64 stalkerGUID;
+        ObjectGuid utherGUID;
+        ObjectGuid jainaGUID;
+        ObjectGuid citymenGUID[2];
+        ObjectGuid waveGUID[ENCOUNTER_WAVES_MAX_SPAWNS];
+        ObjectGuid infiniteDraconianGUID[ENCOUNTER_DRACONIAN_NUMBER];
+        ObjectGuid stalkerGUID;
 
-        uint64 bossGUID;
-        uint64 epochGUID;
-        uint64 malganisGUID;
-        uint64 infiniteGUID;
+        ObjectGuid bossGUID;
+        ObjectGuid epochGUID;
+        ObjectGuid malganisGUID;
+        ObjectGuid infiniteGUID;
 
         uint32 exorcismTimer;
 
@@ -436,7 +436,7 @@ public:
             instance->SetBossState(DATA_ARTHAS, FAIL);
         }
 
-        void SpawnTimeRift(uint32 timeRiftID, uint64* guidVector)
+        void SpawnTimeRift(uint32 timeRiftID, ObjectGuid* guidVector)
         {
             me->SummonCreature((uint32)RiftAndSpawnsLocations[timeRiftID][0], RiftAndSpawnsLocations[timeRiftID][1], RiftAndSpawnsLocations[timeRiftID][2], RiftAndSpawnsLocations[timeRiftID][3], RiftAndSpawnsLocations[timeRiftID][4], TEMPSUMMON_TIMED_DESPAWN, 11000);
 
@@ -455,7 +455,7 @@ public:
             }
         }
 
-        void SpawnWaveGroup(uint32 waveID, uint64* guidVector)
+        void SpawnWaveGroup(uint32 waveID, ObjectGuid* guidVector)
         {
             for (uint32 i = 0; i < ENCOUNTER_WAVES_MAX_SPAWNS; ++i)
             {
@@ -568,7 +568,7 @@ public:
                     Talk(SAY_PHASE403);
                     break;
                 case 36:
-                    if (GameObject* gate = ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_SHKAF_GATE)))
+                    if (GameObject* gate = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_SHKAF_GATE)))
                         gate->SetGoState(GO_STATE_ACTIVE);
                     break;
                 case 45:
@@ -736,7 +736,7 @@ public:
                         case 21:
                             SetEscortPaused(false);
                             bStepping = false;
-                            me->SetTarget(0);
+                            me->SetTarget(ObjectGuid::Empty);
                             JumpToNextStep(0);
                             break;
                         //After waypoint 3
@@ -756,7 +756,7 @@ public:
                             if (Creature* uther = ObjectAccessor::GetCreature(*me, utherGUID))
                                 uther->DisappearAndDie();
 
-                            me->SetTarget(0);
+                            me->SetTarget(ObjectGuid::Empty);
                             JumpToNextStep(0);
                             break;
                         //After Gossip 1 (waypoint 8)
@@ -779,7 +779,7 @@ public:
                             SetEscortPaused(false);
                             bStepping = false;
                             SetRun(false);
-                            me->SetTarget(0);
+                            me->SetTarget(ObjectGuid::Empty);
                             JumpToNextStep(0);
                             break;
                         //After waypoint 9
@@ -938,7 +938,7 @@ public:
                                 uint32 deadCounter = 0;
                                 for (uint8 i = 0; i < ENCOUNTER_WAVES_MAX_SPAWNS; ++i)
                                 {
-                                    if (waveGUID[i] == 0)
+                                    if (waveGUID[i].IsEmpty())
                                         break;
                                     ++mobCounter;
                                     Unit* temp = ObjectAccessor::GetCreature(*me, waveGUID[i]);
@@ -1168,7 +1168,7 @@ public:
                                 malganisGUID = malganis->GetGUID();
                                 malganis->SetReactState(REACT_PASSIVE);
                             }
-                            if (GameObject* gate = ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_MAL_GANIS_GATE_1)))
+                            if (GameObject* gate = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_MAL_GANIS_GATE_1)))
                                 gate->SetGoState(GO_STATE_ACTIVE);
                             SetHoldState(false);
                             bStepping = false;
@@ -1208,7 +1208,7 @@ public:
                             break;
                         case 90:
                             instance->SetBossState(DATA_ARTHAS, DONE); //Rewards: Achiev & Chest ;D
-                            me->SetTarget(instance->GetData64(DATA_MAL_GANIS_GATE_2)); //Look behind
+                            me->SetTarget(instance->GetGuidData(DATA_MAL_GANIS_GATE_2)); //Look behind
                             Talk(SAY_PHASE504);
                             bStepping = false;
                             break;
diff --git a/src/server/scripts/Kalimdor/CavernsOfTime/CullingOfStratholme/instance_culling_of_stratholme.cpp b/src/server/scripts/Kalimdor/CavernsOfTime/CullingOfStratholme/instance_culling_of_stratholme.cpp
index ab86b5d8f42..c25a061d622 100644
--- a/src/server/scripts/Kalimdor/CavernsOfTime/CullingOfStratholme/instance_culling_of_stratholme.cpp
+++ b/src/server/scripts/Kalimdor/CavernsOfTime/CullingOfStratholme/instance_culling_of_stratholme.cpp
@@ -61,19 +61,6 @@ class instance_culling_of_stratholme : public InstanceMapScript
                 SetBossNumber(EncounterCount);
                 LoadDoorData(doorData);
 
-                _chromieGUID       = 0;
-                _arthasGUID        = 0;
-                _meathookGUID      = 0;
-                _salrammGUID       = 0;
-                _epochGUID         = 0;
-                _malGanisGUID      = 0;
-                _infiniteGUID      = 0;
-                _shkafGateGUID     = 0;
-                _malGanisGate1GUID = 0;
-                _malGanisGate2GUID = 0;
-                _exitGateGUID      = 0;
-                _malGanisChestGUID = 0;
-                _genericBunnyGUID  = 0;
                 _crateCount        = 0;
                 _eventTimer        = 0;
                 _infiniteCouterState = NOT_STARTED;
@@ -176,7 +163,7 @@ class instance_culling_of_stratholme : public InstanceMapScript
                             // Summon Chromie and global whisper
                             if (Creature* chromie = instance->SummonCreature(NPC_CHROMIE_2, ChromieSummonPos[0]))
                                 if (!instance->GetPlayers().isEmpty())
-                                    chromie->AI()->TalkToMap(SAY_CRATES_COMPLETED);
+                                    chromie->AI()->Talk(SAY_CRATES_COMPLETED);
                         }
                         DoUpdateWorldState(WORLDSTATE_CRATES_REVEALED, _crateCount);
                         break;
@@ -242,7 +229,7 @@ class instance_culling_of_stratholme : public InstanceMapScript
                 return 0;
             }
 
-            uint64 GetData64(uint32 identifier) const override
+            ObjectGuid GetGuidData(uint32 identifier) const override
             {
                 switch (identifier)
                 {
@@ -271,7 +258,7 @@ class instance_culling_of_stratholme : public InstanceMapScript
                     default:
                         break;
                 }
-                return 0;
+                return ObjectGuid::Empty;
             }
 
             void Update(uint32 diff) override
@@ -290,17 +277,17 @@ class instance_culling_of_stratholme : public InstanceMapScript
                                 case 25:
                                     if (instance->HavePlayers())
                                         if (Creature* chromie = instance->GetCreature(_chromieGUID))
-                                            chromie->AI()->TalkToMap(SAY_INFINITE_START);
+                                            chromie->AI()->Talk(SAY_INFINITE_START);
                                     break;
                                 case 5:
                                     if (instance->HavePlayers())
                                         if (Creature* chromie = instance->GetCreature(_chromieGUID))
-                                            chromie->AI()->TalkToMap(SAY_INFINITE);
+                                            chromie->AI()->Talk(SAY_INFINITE);
                                     break;
                                 case 0:
                                     if (instance->HavePlayers())
                                         if (Creature* chromie = instance->GetCreature(_chromieGUID))
-                                            chromie->AI()->TalkToMap(SAY_INFINITE_FAIL);
+                                            chromie->AI()->Talk(SAY_INFINITE_FAIL);
 
                                     if (Creature* infinite = instance->GetCreature(_infiniteGUID))
                                     {
@@ -331,19 +318,19 @@ class instance_culling_of_stratholme : public InstanceMapScript
             }
 
         private:
-            uint64 _chromieGUID;
-            uint64 _arthasGUID;
-            uint64 _meathookGUID;
-            uint64 _salrammGUID;
-            uint64 _epochGUID;
-            uint64 _malGanisGUID;
-            uint64 _infiniteGUID;
-            uint64 _shkafGateGUID;
-            uint64 _malGanisGate1GUID;
-            uint64 _malGanisGate2GUID;
-            uint64 _exitGateGUID;
-            uint64 _malGanisChestGUID;
-            uint64 _genericBunnyGUID;
+            ObjectGuid _chromieGUID;
+            ObjectGuid _arthasGUID;
+            ObjectGuid _meathookGUID;
+            ObjectGuid _salrammGUID;
+            ObjectGuid _epochGUID;
+            ObjectGuid _malGanisGUID;
+            ObjectGuid _infiniteGUID;
+            ObjectGuid _shkafGateGUID;
+            ObjectGuid _malGanisGate1GUID;
+            ObjectGuid _malGanisGate2GUID;
+            ObjectGuid _exitGateGUID;
+            ObjectGuid _malGanisChestGUID;
+            ObjectGuid _genericBunnyGUID;
 
             uint32 _crateCount;
             uint32 _eventTimer;
diff --git a/src/server/scripts/Kalimdor/CavernsOfTime/EscapeFromDurnholdeKeep/instance_old_hillsbrad.cpp b/src/server/scripts/Kalimdor/CavernsOfTime/EscapeFromDurnholdeKeep/instance_old_hillsbrad.cpp
index 32062be6f3c..0220ff98750 100644
--- a/src/server/scripts/Kalimdor/CavernsOfTime/EscapeFromDurnholdeKeep/instance_old_hillsbrad.cpp
+++ b/src/server/scripts/Kalimdor/CavernsOfTime/EscapeFromDurnholdeKeep/instance_old_hillsbrad.cpp
@@ -58,9 +58,9 @@ public:
         uint32 mBarrelCount;
         uint32 mThrallEventCount;
 
-        uint64 ThrallGUID;
-        uint64 TarethaGUID;
-        uint64 EpochGUID;
+        ObjectGuid ThrallGUID;
+        ObjectGuid TarethaGUID;
+        ObjectGuid EpochGUID;
 
         void Initialize() override
         {
@@ -69,9 +69,6 @@ public:
 
             mBarrelCount        = 0;
             mThrallEventCount   = 0;
-            ThrallGUID          = 0;
-            TarethaGUID         = 0;
-            EpochGUID        = 0;
         }
 
         Player* GetPlayerInMap()
@@ -100,7 +97,7 @@ public:
                 for (Map::PlayerList::const_iterator itr = players.begin(); itr != players.end(); ++itr)
                 {
                     if (Player* player = itr->GetSource())
-                        player->KilledMonsterCredit(LODGE_QUEST_TRIGGER, 0);
+                        player->KilledMonsterCredit(LODGE_QUEST_TRIGGER);
                 }
             }
         }
@@ -115,9 +112,9 @@ public:
                 case TARETHA_ENTRY:
                     TarethaGUID = creature->GetGUID();
                     break;
-            case EPOCH_ENTRY:
-            EpochGUID = creature->GetGUID();
-            break;
+                case EPOCH_ENTRY:
+                    EpochGUID = creature->GetGUID();
+                    break;
             }
         }
 
@@ -224,7 +221,7 @@ public:
             return 0;
         }
 
-        uint64 GetData64(uint32 data) const override
+        ObjectGuid GetGuidData(uint32 data) const override
         {
             switch (data)
             {
@@ -232,10 +229,10 @@ public:
                     return ThrallGUID;
                 case DATA_TARETHA:
                     return TarethaGUID;
-            case DATA_EPOCH:
-            return EpochGUID;
+                case DATA_EPOCH:
+                    return EpochGUID;
             }
-            return 0;
+            return ObjectGuid::Empty;
         }
     };
 
diff --git a/src/server/scripts/Kalimdor/CavernsOfTime/EscapeFromDurnholdeKeep/old_hillsbrad.cpp b/src/server/scripts/Kalimdor/CavernsOfTime/EscapeFromDurnholdeKeep/old_hillsbrad.cpp
index 56e95fafece..66ce5e93720 100644
--- a/src/server/scripts/Kalimdor/CavernsOfTime/EscapeFromDurnholdeKeep/old_hillsbrad.cpp
+++ b/src/server/scripts/Kalimdor/CavernsOfTime/EscapeFromDurnholdeKeep/old_hillsbrad.cpp
@@ -404,7 +404,7 @@ public:
                     me->SummonCreature(NPC_INN_GUARDSMAN, 2656.39f, 659.77f, 61.93f, 2.61f, TEMPSUMMON_TIMED_DESPAWN_OUT_OF_COMBAT, 5000);
                     break;
                 case 94:
-                    if (Creature* Taretha = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_TARETHA)))
+                    if (Creature* Taretha = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_TARETHA)))
                         Taretha->AI()->Talk(SAY_TA_ESCAPED, me);
                     break;
                 case 95:
@@ -426,7 +426,7 @@ public:
                 case 106:
                     {
                         //trigger taretha to run down outside
-                        if (Creature* Taretha = instance->instance->GetCreature(instance->GetData64(DATA_TARETHA)))
+                        if (Creature* Taretha = instance->instance->GetCreature(instance->GetGuidData(DATA_TARETHA)))
                         {
                             if (Player* player = GetPlayerForEscort())
                                 ENSURE_AI(npc_escortAI, (Taretha->AI()))->Start(false, true, player->GetGUID());
@@ -440,7 +440,7 @@ public:
                             for (Map::PlayerList::const_iterator itr = players.begin(); itr != players.end(); ++itr)
                             {
                                 if (Player* player = itr->GetSource())
-                                    player->KilledMonsterCredit(20156, 0);
+                                    player->KilledMonsterCredit(20156);
                             }
                         }
 
@@ -588,10 +588,10 @@ public:
             if (instance->GetData(TYPE_THRALL_EVENT) == IN_PROGRESS)
             {
                 instance->SetData(TYPE_THRALL_PART4, IN_PROGRESS);
-                if (instance->GetData64(DATA_EPOCH) == 0)
+                if (instance->GetGuidData(DATA_EPOCH).IsEmpty())
                      creature->SummonCreature(ENTRY_EPOCH, 2639.13f, 698.55f, 65.43f, 4.59f, TEMPSUMMON_TIMED_OR_DEAD_DESPAWN, 120000);
 
-                if (Creature* thrall = (ObjectAccessor::GetCreature(*creature, instance->GetData64(DATA_THRALL))))
+                if (Creature* thrall = (ObjectAccessor::GetCreature(*creature, instance->GetGuidData(DATA_THRALL))))
                     ENSURE_AI(npc_thrall_old_hillsbrad::npc_thrall_old_hillsbradAI, thrall->AI())->StartWP();
             }
         }
diff --git a/src/server/scripts/Kalimdor/CavernsOfTime/TheBlackMorass/instance_the_black_morass.cpp b/src/server/scripts/Kalimdor/CavernsOfTime/TheBlackMorass/instance_the_black_morass.cpp
index 35497b1f9ce..ed49cc41c39 100644
--- a/src/server/scripts/Kalimdor/CavernsOfTime/TheBlackMorass/instance_the_black_morass.cpp
+++ b/src/server/scripts/Kalimdor/CavernsOfTime/TheBlackMorass/instance_the_black_morass.cpp
@@ -89,13 +89,12 @@ public:
         uint8  mRiftWaveCount;
         uint8  mRiftWaveId;
 
-        uint64 _medivhGUID;
+        ObjectGuid _medivhGUID;
         uint8  _currentRiftId;
 
         void Initialize() override
         {
             SetHeaders(DataHeader);
-            _medivhGUID         = 0;
             Clear();
         }
 
@@ -253,12 +252,12 @@ public:
             return 0;
         }
 
-        uint64 GetData64(uint32 data) const override
+        ObjectGuid GetGuidData(uint32 data) const override
         {
             if (data == DATA_MEDIVH)
                 return _medivhGUID;
 
-            return 0;
+            return ObjectGuid::Empty;
         }
 
         Creature* SummonedPortalBoss(Creature* me)
diff --git a/src/server/scripts/Kalimdor/CavernsOfTime/TheBlackMorass/the_black_morass.cpp b/src/server/scripts/Kalimdor/CavernsOfTime/TheBlackMorass/the_black_morass.cpp
index 1fa104ada00..64d99c03dab 100644
--- a/src/server/scripts/Kalimdor/CavernsOfTime/TheBlackMorass/the_black_morass.cpp
+++ b/src/server/scripts/Kalimdor/CavernsOfTime/TheBlackMorass/the_black_morass.cpp
@@ -321,7 +321,7 @@ public:
             pos.m_positionZ = std::max(me->GetMap()->GetHeight(pos.m_positionX, pos.m_positionY, MAX_HEIGHT), me->GetMap()->GetWaterLevel(pos.m_positionX, pos.m_positionY));
 
             if (Unit* Summon = DoSummon(creature_entry, pos, 30000, TEMPSUMMON_TIMED_DESPAWN_OUT_OF_COMBAT))
-                if (Unit* temp = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_MEDIVH)))
+                if (Unit* temp = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_MEDIVH)))
                     Summon->AddThreat(temp, 0.0f);
         }
 
diff --git a/src/server/scripts/Kalimdor/Firelands/boss_alysrazor.cpp b/src/server/scripts/Kalimdor/Firelands/boss_alysrazor.cpp
index d76de6eeb42..9b8b435e93c 100644
--- a/src/server/scripts/Kalimdor/Firelands/boss_alysrazor.cpp
+++ b/src/server/scripts/Kalimdor/Firelands/boss_alysrazor.cpp
@@ -179,7 +179,7 @@ class npc_harbinger_of_flame : public CreatureScript
 
             void EnterCombat(Unit* /*target*/)
             {
-                if (Creature* bird = ObjectAccessor::GetCreature(*me, me->GetUInt64Value(UNIT_FIELD_CHANNEL_OBJECT)))
+                if (Creature* bird = ObjectAccessor::GetCreature(*me, me->GetChannelObjectGuid()))
                     DoZoneInCombat(bird, 200.0f);
 
                 me->InterruptSpell(CURRENT_CHANNELED_SPELL);
diff --git a/src/server/scripts/Kalimdor/HallsOfOrigination/boss_anraphet.cpp b/src/server/scripts/Kalimdor/HallsOfOrigination/boss_anraphet.cpp
index c8963331702..84a267543c5 100644
--- a/src/server/scripts/Kalimdor/HallsOfOrigination/boss_anraphet.cpp
+++ b/src/server/scripts/Kalimdor/HallsOfOrigination/boss_anraphet.cpp
@@ -168,7 +168,7 @@ public:
             instance->SendEncounterUnit(ENCOUNTER_FRAME_DISENGAGE, me);
             Talk(ANRAPHET_SAY_DEATH);
 
-            if (Creature* brann = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_BRANN_0_GUID)))
+            if (Creature* brann = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_BRANN_0_GUID)))
                 brann->AI()->DoAction(ACTION_ANRAPHET_DIED);
 
             _JustDied();
@@ -304,7 +304,7 @@ class npc_alpha_beam : public CreatureScript
 
             void IsSummonedBy(Unit* /*summoner*/) override
             {
-                if (Creature* anraphet = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_ANRAPHET_GUID)))
+                if (Creature* anraphet = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_ANRAPHET_GUID)))
                     anraphet->CastSpell(me, SPELL_ALPHA_BEAMS_BACK_CAST);
             }
 
@@ -357,7 +357,7 @@ class npc_brann_bronzebeard_anraphet : public CreatureScript
                         if (dead == 4)
                         {
                             _instance->DoCastSpellOnPlayers(SPELL_VAULT_OF_LIGHTS_CREDIT);
-                            if (Creature* anraphet = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_ANRAPHET_GUID)))
+                            if (Creature* anraphet = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_ANRAPHET_GUID)))
                                 anraphet->AI()->DoAction(ACTION_ANRAPHET_INTRO);
                         }
                         break;
diff --git a/src/server/scripts/Kalimdor/HallsOfOrigination/boss_temple_guardian_anhuur.cpp b/src/server/scripts/Kalimdor/HallsOfOrigination/boss_temple_guardian_anhuur.cpp
index 7aed7a66a00..47a40dd56ef 100644
--- a/src/server/scripts/Kalimdor/HallsOfOrigination/boss_temple_guardian_anhuur.cpp
+++ b/src/server/scripts/Kalimdor/HallsOfOrigination/boss_temple_guardian_anhuur.cpp
@@ -126,7 +126,7 @@ public:
                 DoCastAOE(SPELL_ACTIVATE_BEACONS);
 
                 std::list<Creature*> stalkers;
-                GameObject* door = ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_ANHUUR_DOOR));
+                GameObject* door = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_ANHUUR_DOOR));
                 GetCreatureListWithEntryInGrid(stalkers, me, NPC_CAVE_IN_STALKER, 100.0f);
 
                 stalkers.remove_if(Trinity::HeightDifferenceCheck(door, 0.0f, false)); // Target only the bottom ones
@@ -228,7 +228,7 @@ public:
 
                         std::list<Creature*> stalkers;
                         GetCreatureListWithEntryInGrid(stalkers, me, NPC_CAVE_IN_STALKER, 100.0f);
-                        stalkers.remove_if(Trinity::HeightDifferenceCheck(ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_ANHUUR_DOOR)), 5.0f, true));
+                        stalkers.remove_if(Trinity::HeightDifferenceCheck(ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_ANHUUR_DOOR)), 5.0f, true));
 
                         if (stalkers.empty())
                             break;
@@ -278,7 +278,7 @@ class spell_anhuur_shield_of_light : public SpellScriptLoader
                 {
                     if (InstanceScript* const script = instance->GetInstanceScript())
                     {
-                        if (GameObject* go = ObjectAccessor::GetGameObject(*GetCaster(), script->GetData64(DATA_ANHUUR_DOOR)))
+                        if (GameObject* go = ObjectAccessor::GetGameObject(*GetCaster(), script->GetGuidData(DATA_ANHUUR_DOOR)))
                         {
                             targets.remove_if(Trinity::HeightDifferenceCheck(go, 5.0f, false));
                             targets.remove(GetCaster());
@@ -319,7 +319,7 @@ class spell_anhuur_disable_beacon_beams : public SpellScriptLoader
             {
                 if (InstanceMap* instance = GetCaster()->GetMap()->ToInstanceMap())
                     if (InstanceScript* const script = instance->GetInstanceScript())
-                        if (Creature* anhuur = instance->GetCreature(script->GetData64(DATA_ANHUUR_GUID)))
+                        if (Creature* anhuur = instance->GetCreature(script->GetGuidData(DATA_ANHUUR_GUID)))
                             anhuur->AI()->DoAction(ACTION_DISABLE_BEACON);
             }
 
diff --git a/src/server/scripts/Kalimdor/HallsOfOrigination/instance_halls_of_origination.cpp b/src/server/scripts/Kalimdor/HallsOfOrigination/instance_halls_of_origination.cpp
index 3273d3d7850..4377344fb26 100644
--- a/src/server/scripts/Kalimdor/HallsOfOrigination/instance_halls_of_origination.cpp
+++ b/src/server/scripts/Kalimdor/HallsOfOrigination/instance_halls_of_origination.cpp
@@ -56,15 +56,6 @@ class instance_halls_of_origination : public InstanceMapScript
                 SetHeaders(DataHeader);
                 SetBossNumber(EncounterCount);
                 LoadDoorData(doorData);
-                TempleGuardianAnhuurGUID = 0;
-                AnhuursBridgeGUID = 0;
-                AnhuursDoorGUID = 0;
-                AnhuurRightBeaconGUID = 0;
-                AnhuurLeftBeaconGUID = 0;
-                BrannBronzebeardGUID = 0;
-                AnraphetGUID = 0;
-                AnraphetDoorGUID = 0;
-                SunMirrorGUID = 0;
                 _deadElementals = 0;
             }
 
@@ -155,7 +146,7 @@ class instance_halls_of_origination : public InstanceMapScript
                 return 0;
             }
 
-            uint64 GetData64(uint32 index) const override
+            ObjectGuid GetGuidData(uint32 index) const override
             {
                 switch (index)
                 {
@@ -175,7 +166,7 @@ class instance_halls_of_origination : public InstanceMapScript
                         return AnraphetGUID;
                 }
 
-                return 0;
+                return ObjectGuid::Empty;
             }
 
             void IncreaseDeadElementals(uint32 inc)
@@ -225,15 +216,15 @@ class instance_halls_of_origination : public InstanceMapScript
             }
 
         protected:
-            uint64 TempleGuardianAnhuurGUID;
-            uint64 AnhuursBridgeGUID;
-            uint64 AnhuursDoorGUID;
-            uint64 AnhuurRightBeaconGUID;
-            uint64 AnhuurLeftBeaconGUID;
-            uint64 BrannBronzebeardGUID;
-            uint64 AnraphetGUID;
-            uint64 AnraphetDoorGUID;
-            uint64 SunMirrorGUID;
+            ObjectGuid TempleGuardianAnhuurGUID;
+            ObjectGuid AnhuursBridgeGUID;
+            ObjectGuid AnhuursDoorGUID;
+            ObjectGuid AnhuurRightBeaconGUID;
+            ObjectGuid AnhuurLeftBeaconGUID;
+            ObjectGuid BrannBronzebeardGUID;
+            ObjectGuid AnraphetGUID;
+            ObjectGuid AnraphetDoorGUID;
+            ObjectGuid SunMirrorGUID;
             uint32 _deadElementals;
         };
 
diff --git a/src/server/scripts/Kalimdor/OnyxiasLair/boss_onyxia.cpp b/src/server/scripts/Kalimdor/OnyxiasLair/boss_onyxia.cpp
index 0a6b2e88b26..5c083e43d3d 100644
--- a/src/server/scripts/Kalimdor/OnyxiasLair/boss_onyxia.cpp
+++ b/src/server/scripts/Kalimdor/OnyxiasLair/boss_onyxia.cpp
@@ -140,8 +140,8 @@ public:
             MovePoint = urand(0, 5);
             PointData = GetMoveData();
             SummonWhelpCount = 0;
-            triggerGUID = 0;
-            tankGUID = 0;
+            triggerGUID.Clear();
+            tankGUID.Clear();
             IsMoving = false;
         }
 
@@ -355,7 +355,7 @@ public:
                             Trinity::GameObjectLastSearcher<Trinity::GameObjectInRangeCheck> searcher(me, Floor, check);
                             me->VisitNearbyGridObject(30, searcher);
                             if (Floor)
-                                instance->SetData64(DATA_FLOOR_ERUPTION_GUID, Floor->GetGUID());
+                                instance->SetGuidData(DATA_FLOOR_ERUPTION_GUID, Floor->GetGUID());
                             events.ScheduleEvent(EVENT_BELLOWING_ROAR, 30000);
                             break;
                         }
@@ -473,8 +473,8 @@ public:
             uint8 Phase;
             uint8 MovePoint;
             uint8 SummonWhelpCount;
-            uint64 triggerGUID;
-            uint64 tankGUID;
+            ObjectGuid triggerGUID;
+            ObjectGuid tankGUID;
             bool IsMoving;
     };
 
diff --git a/src/server/scripts/Kalimdor/OnyxiasLair/instance_onyxias_lair.cpp b/src/server/scripts/Kalimdor/OnyxiasLair/instance_onyxias_lair.cpp
index 6aa50e71b17..4bbbf26b84e 100644
--- a/src/server/scripts/Kalimdor/OnyxiasLair/instance_onyxias_lair.cpp
+++ b/src/server/scripts/Kalimdor/OnyxiasLair/instance_onyxias_lair.cpp
@@ -53,7 +53,6 @@ public:
             SetHeaders(DataHeader);
             SetBossNumber(EncounterCount);
 
-            onyxiaGUID               = 0;
             onyxiaLiftoffTimer       = 0;
             manyWhelpsCounter        = 0;
             eruptTimer               = 0;
@@ -102,7 +101,7 @@ public:
             }
         }
 
-        void FloorEruption(uint64 floorEruptedGUID)
+        void FloorEruption(ObjectGuid floorEruptedGUID)
         {
             if (GameObject* floorEruption = instance->GetGameObject(floorEruptedGUID))
             {
@@ -121,7 +120,7 @@ public:
                 {
                     if (((*itr)->GetGOInfo()->displayId == 4392 || (*itr)->GetGOInfo()->displayId == 4472) && (*itr)->GetGOInfo()->trap.spellId == 17731)
                     {
-                        uint64 nearFloorGUID = (*itr)->GetGUID();
+                        ObjectGuid nearFloorGUID = (*itr)->GetGUID();
                         if (FloorEruptionGUID[1].find(nearFloorGUID) != FloorEruptionGUID[1].end() && (*FloorEruptionGUID[1].find(nearFloorGUID)).second == 0)
                         {
                             (*FloorEruptionGUID[1].find(nearFloorGUID)).second = (*FloorEruptionGUID[1].find(floorEruptedGUID)).second+1;
@@ -173,7 +172,7 @@ public:
             }
         }
 
-        void SetData64(uint32 type, uint64 data) override
+        void SetGuidData(uint32 type, ObjectGuid data) override
         {
             switch (type)
             {
@@ -185,7 +184,7 @@ public:
             }
         }
 
-        uint64 GetData64(uint32 data) const override
+        ObjectGuid GetGuidData(uint32 data) const override
         {
             switch (data)
             {
@@ -193,7 +192,7 @@ public:
                     return onyxiaGUID;
             }
 
-            return 0;
+            return ObjectGuid::Empty;
         }
 
         void Update(uint32 diff) override
@@ -212,8 +211,8 @@ public:
             {
                 if (eruptTimer <= diff)
                 {
-                    uint64 frontGuid = FloorEruptionGUIDQueue.front();
-                    std::map<uint64, uint32>::iterator itr = FloorEruptionGUID[1].find(frontGuid);
+                    ObjectGuid frontGuid = FloorEruptionGUIDQueue.front();
+                    std::map<ObjectGuid, uint32>::iterator itr = FloorEruptionGUID[1].find(frontGuid);
                     if (itr != FloorEruptionGUID[1].end())
                     {
                         uint32 treeHeight = itr->second;
@@ -252,11 +251,9 @@ public:
         }
 
     protected:
-        std::map<uint64, uint32> FloorEruptionGUID[2];
-        std::queue<uint64> FloorEruptionGUIDQueue;
-        uint64 onyxiaGUID;
-        uint64 triggerGUID;
-        uint64 tankGUID;
+        std::map<ObjectGuid, uint32> FloorEruptionGUID[2];
+        std::queue<ObjectGuid> FloorEruptionGUIDQueue;
+        ObjectGuid onyxiaGUID;
         uint32 onyxiaLiftoffTimer;
         uint32 manyWhelpsCounter;
         uint32 eruptTimer;
diff --git a/src/server/scripts/Kalimdor/RazorfenDowns/instance_razorfen_downs.cpp b/src/server/scripts/Kalimdor/RazorfenDowns/instance_razorfen_downs.cpp
index ca5e6a9828c..8a82f782918 100644
--- a/src/server/scripts/Kalimdor/RazorfenDowns/instance_razorfen_downs.cpp
+++ b/src/server/scripts/Kalimdor/RazorfenDowns/instance_razorfen_downs.cpp
@@ -59,7 +59,6 @@ public:
 
         void Initialize() override
         {
-            goGongGUID      = 0;
             gongWave        = 0;
             fiendsKilled    = 0;
             reaversKilled   = 0;
@@ -172,7 +171,7 @@ public:
         }
 
     protected:
-        uint64 goGongGUID;
+        ObjectGuid goGongGUID;
         uint16 gongWave;
         uint8  fiendsKilled;
         uint8  reaversKilled;
diff --git a/src/server/scripts/Kalimdor/RazorfenKraul/instance_razorfen_kraul.cpp b/src/server/scripts/Kalimdor/RazorfenKraul/instance_razorfen_kraul.cpp
index 6f9ba0afa7b..07cb6e65ee9 100644
--- a/src/server/scripts/Kalimdor/RazorfenKraul/instance_razorfen_kraul.cpp
+++ b/src/server/scripts/Kalimdor/RazorfenKraul/instance_razorfen_kraul.cpp
@@ -44,14 +44,13 @@ public:
     {
         instance_razorfen_kraul_InstanceMapScript(Map* map) : InstanceScript(map) { }
 
-        uint64 DoorWardGUID;
+        ObjectGuid DoorWardGUID;
         int WardKeeperDeath;
 
         void Initialize() override
         {
             SetHeaders(DataHeader);
             WardKeeperDeath = 0;
-            DoorWardGUID = 0;
         }
 
         Player* GetPlayerInMap()
diff --git a/src/server/scripts/Kalimdor/RazorfenKraul/razorfen_kraul.cpp b/src/server/scripts/Kalimdor/RazorfenKraul/razorfen_kraul.cpp
index e3021ff7a95..8cbd611a18a 100644
--- a/src/server/scripts/Kalimdor/RazorfenKraul/razorfen_kraul.cpp
+++ b/src/server/scripts/Kalimdor/RazorfenKraul/razorfen_kraul.cpp
@@ -159,13 +159,12 @@ public:
         npc_snufflenose_gopherAI(Creature* creature) : PetAI(creature)
         {
             IsMovementActive = false;
-            TargetTubberGUID = 0;
         }
 
         void Reset() override
         {
             IsMovementActive = false;
-            TargetTubberGUID = 0;
+            TargetTubberGUID.Clear();
         }
 
         void MovementInform(uint32 type, uint32 id) override
@@ -227,7 +226,7 @@ public:
 
 
         bool IsMovementActive;
-        uint64 TargetTubberGUID;
+        ObjectGuid TargetTubberGUID;
     };
 };
 
diff --git a/src/server/scripts/Kalimdor/RuinsOfAhnQiraj/boss_ayamiss.cpp b/src/server/scripts/Kalimdor/RuinsOfAhnQiraj/boss_ayamiss.cpp
index 19cc5316fa4..1a09ef27b04 100644
--- a/src/server/scripts/Kalimdor/RuinsOfAhnQiraj/boss_ayamiss.cpp
+++ b/src/server/scripts/Kalimdor/RuinsOfAhnQiraj/boss_ayamiss.cpp
@@ -200,14 +200,14 @@ class boss_ayamiss : public CreatureScript
                             if (Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 0, 0, true))
                             {
                                 DoCast(target, SPELL_PARALYZE);
-                                instance->SetData64(DATA_PARALYZED, target->GetGUID());
+                                instance->SetGuidData(DATA_PARALYZED, target->GetGUID());
                                 uint8 Index = urand(0, 1);
                                 me->SummonCreature(NPC_LARVA, LarvaPos[Index], TEMPSUMMON_TIMED_OR_CORPSE_DESPAWN, 30000);
                             }
                             events.ScheduleEvent(EVENT_PARALYZE, 15000);
                             break;
                         case EVENT_SWARMER_ATTACK:
-                            for (std::list<uint64>::iterator i = _swarmers.begin(); i != _swarmers.end(); ++i)
+                            for (GuidList::iterator i = _swarmers.begin(); i != _swarmers.end(); ++i)
                                 if (Creature* swarmer = me->GetMap()->GetCreature(*i))
                                     if (Unit* target = SelectTarget(SELECT_TARGET_RANDOM))
                                         swarmer->AI()->AttackStart(target);
@@ -234,7 +234,7 @@ class boss_ayamiss : public CreatureScript
                 }
             }
         private:
-            std::list<uint64> _swarmers;
+            GuidList _swarmers;
             uint8 _phase;
             bool _enraged;
         };
@@ -261,7 +261,7 @@ class npc_hive_zara_larva : public CreatureScript
             {
                 if (type == POINT_MOTION_TYPE)
                     if (id == POINT_PARALYZE)
-                        if (Player* target = ObjectAccessor::GetPlayer(*me, _instance->GetData64(DATA_PARALYZED)))
+                        if (Player* target = ObjectAccessor::GetPlayer(*me, _instance->GetGuidData(DATA_PARALYZED)))
                             DoCast(target, SPELL_FEED); // Omnomnom
             }
 
diff --git a/src/server/scripts/Kalimdor/RuinsOfAhnQiraj/boss_buru.cpp b/src/server/scripts/Kalimdor/RuinsOfAhnQiraj/boss_buru.cpp
index cf6703a01f5..d6640b5a0ab 100644
--- a/src/server/scripts/Kalimdor/RuinsOfAhnQiraj/boss_buru.cpp
+++ b/src/server/scripts/Kalimdor/RuinsOfAhnQiraj/boss_buru.cpp
@@ -76,8 +76,8 @@ class boss_buru : public CreatureScript
             {
                 BossAI::EnterEvadeMode();
 
-                for (std::list<uint64>::iterator i = Eggs.begin(); i != Eggs.end(); ++i)
-                    if (Creature* egg = me->GetMap()->GetCreature(*Eggs.begin()))
+                for (ObjectGuid eggGuid : Eggs)
+                    if (Creature* egg = me->GetMap()->GetCreature(eggGuid))
                         egg->Respawn();
 
                 Eggs.clear();
@@ -127,7 +127,7 @@ class boss_buru : public CreatureScript
                 }
             }
 
-            void ManageRespawn(uint64 EggGUID)
+            void ManageRespawn(ObjectGuid EggGUID)
             {
                 ChaseNewVictim();
                 Eggs.push_back(EggGUID);
@@ -183,8 +183,8 @@ class boss_buru : public CreatureScript
                 DoMeleeAttackIfReady();
             }
         private:
+            GuidList Eggs;
             uint8 _phase;
-            std::list<uint64> Eggs;
         };
 
         CreatureAI* GetAI(Creature* creature) const override
@@ -208,7 +208,7 @@ class npc_buru_egg : public CreatureScript
 
             void EnterCombat(Unit* attacker) override
             {
-                if (Creature* buru = me->GetMap()->GetCreature(_instance->GetData64(DATA_BURU)))
+                if (Creature* buru = me->GetMap()->GetCreature(_instance->GetGuidData(DATA_BURU)))
                     if (!buru->IsInCombat())
                         buru->AI()->AttackStart(attacker);
             }
@@ -216,7 +216,7 @@ class npc_buru_egg : public CreatureScript
             void JustSummoned(Creature* who) override
             {
                 if (who->GetEntry() == NPC_HATCHLING)
-                    if (Creature* buru = me->GetMap()->GetCreature(_instance->GetData64(DATA_BURU)))
+                    if (Creature* buru = me->GetMap()->GetCreature(_instance->GetGuidData(DATA_BURU)))
                         if (Unit* target = buru->AI()->SelectTarget(SELECT_TARGET_RANDOM))
                             who->AI()->AttackStart(target);
             }
@@ -227,7 +227,7 @@ class npc_buru_egg : public CreatureScript
                 DoCastAOE(SPELL_EXPLODE_2, true); // Unknown purpose
                 DoCast(me, SPELL_SUMMON_HATCHLING, true);
 
-                if (Creature* buru = me->GetMap()->GetCreature(_instance->GetData64(DATA_BURU)))
+                if (Creature* buru = me->GetMap()->GetCreature(_instance->GetGuidData(DATA_BURU)))
                     if (boss_buru::boss_buruAI* buruAI = dynamic_cast<boss_buru::boss_buruAI*>(buru->AI()))
                         buruAI->ManageRespawn(me->GetGUID());
             }
diff --git a/src/server/scripts/Kalimdor/RuinsOfAhnQiraj/boss_kurinnaxx.cpp b/src/server/scripts/Kalimdor/RuinsOfAhnQiraj/boss_kurinnaxx.cpp
index adb6723d2af..776971b1f9f 100644
--- a/src/server/scripts/Kalimdor/RuinsOfAhnQiraj/boss_kurinnaxx.cpp
+++ b/src/server/scripts/Kalimdor/RuinsOfAhnQiraj/boss_kurinnaxx.cpp
@@ -83,7 +83,7 @@ class boss_kurinnaxx : public CreatureScript
             void JustDied(Unit* /*killer*/) override
             {
                 _JustDied();
-                if (Creature* Ossirian = me->GetMap()->GetCreature(instance->GetData64(DATA_OSSIRIAN)))
+                if (Creature* Ossirian = me->GetMap()->GetCreature(instance->GetGuidData(DATA_OSSIRIAN)))
                     sCreatureTextMgr->SendChat(Ossirian, SAY_KURINAXX_DEATH, NULL, CHAT_MSG_ADDON, LANG_ADDON, TEXT_RANGE_ZONE);
             }
 
diff --git a/src/server/scripts/Kalimdor/RuinsOfAhnQiraj/boss_ossirian.cpp b/src/server/scripts/Kalimdor/RuinsOfAhnQiraj/boss_ossirian.cpp
index 0180bbeddac..2ba755d3c4e 100644
--- a/src/server/scripts/Kalimdor/RuinsOfAhnQiraj/boss_ossirian.cpp
+++ b/src/server/scripts/Kalimdor/RuinsOfAhnQiraj/boss_ossirian.cpp
@@ -95,12 +95,12 @@ class boss_ossirian : public CreatureScript
             void Initialize()
             {
                 CrystalIterator = 0;
-                TriggerGUID = 0;
-                CrystalGUID = 0;
+                TriggerGUID.Clear();
+                CrystalGUID.Clear();
             }
 
-            uint64 TriggerGUID;
-            uint64 CrystalGUID;
+            ObjectGuid TriggerGUID;
+            ObjectGuid CrystalGUID;
             uint8 CrystalIterator;
             bool SaidIntro;
 
diff --git a/src/server/scripts/Kalimdor/RuinsOfAhnQiraj/instance_ruins_of_ahnqiraj.cpp b/src/server/scripts/Kalimdor/RuinsOfAhnQiraj/instance_ruins_of_ahnqiraj.cpp
index 1b62527dab7..0e34f4a5595 100644
--- a/src/server/scripts/Kalimdor/RuinsOfAhnQiraj/instance_ruins_of_ahnqiraj.cpp
+++ b/src/server/scripts/Kalimdor/RuinsOfAhnQiraj/instance_ruins_of_ahnqiraj.cpp
@@ -30,14 +30,6 @@ class instance_ruins_of_ahnqiraj : public InstanceMapScript
             {
                 SetHeaders(DataHeader);
                 SetBossNumber(NUM_ENCOUNTER);
-
-                _kurinaxxGUID   = 0;
-                _rajaxxGUID     = 0;
-                _moamGUID       = 0;
-                _buruGUID       = 0;
-                _ayamissGUID    = 0;
-                _ossirianGUID   = 0;
-                _paralyzedGUID  = 0;
             }
 
             void OnCreatureCreate(Creature* creature) override
@@ -73,13 +65,13 @@ class instance_ruins_of_ahnqiraj : public InstanceMapScript
                 return true;
             }
 
-            void SetData64(uint32 type, uint64 data) override
+            void SetGuidData(uint32 type, ObjectGuid data) override
             {
                 if (type == DATA_PARALYZED)
                     _paralyzedGUID = data;
             }
 
-            uint64 GetData64(uint32 type) const override
+            ObjectGuid GetGuidData(uint32 type) const override
             {
                 switch (type)
                 {
@@ -99,17 +91,17 @@ class instance_ruins_of_ahnqiraj : public InstanceMapScript
                         return _paralyzedGUID;
                 }
 
-                return 0;
+                return ObjectGuid::Empty;
             }
 
         private:
-            uint64 _kurinaxxGUID;
-            uint64 _rajaxxGUID;
-            uint64 _moamGUID;
-            uint64 _buruGUID;
-            uint64 _ayamissGUID;
-            uint64 _ossirianGUID;
-            uint64 _paralyzedGUID;
+            ObjectGuid _kurinaxxGUID;
+            ObjectGuid _rajaxxGUID;
+            ObjectGuid _moamGUID;
+            ObjectGuid _buruGUID;
+            ObjectGuid _ayamissGUID;
+            ObjectGuid _ossirianGUID;
+            ObjectGuid _paralyzedGUID;
         };
 
         InstanceScript* GetInstanceScript(InstanceMap* map) const override
diff --git a/src/server/scripts/Kalimdor/TempleOfAhnQiraj/boss_bug_trio.cpp b/src/server/scripts/Kalimdor/TempleOfAhnQiraj/boss_bug_trio.cpp
index be103541989..4ed4c3c2e26 100644
--- a/src/server/scripts/Kalimdor/TempleOfAhnQiraj/boss_bug_trio.cpp
+++ b/src/server/scripts/Kalimdor/TempleOfAhnQiraj/boss_bug_trio.cpp
@@ -315,11 +315,11 @@ public:
                 switch (urand(0, 2))
                 {
                     case 0:
-                        if (Creature* kri = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_KRI)))
+                        if (Creature* kri = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_KRI)))
                             DoCast(kri, SPELL_HEAL);
                         break;
                     case 1:
-                        if (Creature* vem = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_VEM)))
+                        if (Creature* vem = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_VEM)))
                             DoCast(vem, SPELL_HEAL);
                         break;
                     case 2:
diff --git a/src/server/scripts/Kalimdor/TempleOfAhnQiraj/boss_cthun.cpp b/src/server/scripts/Kalimdor/TempleOfAhnQiraj/boss_cthun.cpp
index c9795133d14..218aa69304c 100644
--- a/src/server/scripts/Kalimdor/TempleOfAhnQiraj/boss_cthun.cpp
+++ b/src/server/scripts/Kalimdor/TempleOfAhnQiraj/boss_cthun.cpp
@@ -307,7 +307,7 @@ public:
                         me->SetReactState(REACT_PASSIVE);
 
                         //Remove any target
-                        me->SetTarget(0);
+                        me->SetTarget(ObjectGuid::Empty);
 
                         //Select random target for dark beam to start on
                         if (Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 0))
@@ -384,7 +384,7 @@ public:
                 //Transition phase
                 case PHASE_CTHUN_TRANSITION:
                     //Remove any target
-                    me->SetTarget(0);
+                    me->SetTarget(ObjectGuid::Empty);
                     me->SetHealth(0);
                     me->SetVisible(false);
                     break;
@@ -420,7 +420,7 @@ public:
                     me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE | UNIT_FLAG_NON_ATTACKABLE);
 
                     //Remove Target field
-                    me->SetTarget(0);
+                    me->SetTarget(ObjectGuid::Empty);
 
                     //Death animation/respawning;
                     instance->SetData(DATA_CTHUN_PHASE, PHASE_CTHUN_TRANSITION);
@@ -475,7 +475,7 @@ public:
             PhaseTimer = 10000;                                 //Emerge in 10 seconds
 
             //No hold player for transition
-            HoldPlayer = 0;
+            HoldPlayer.Clear();
 
             //Body Phase
             EyeTentacleTimer = 30000;
@@ -485,7 +485,7 @@ public:
             StomachAcidTimer = 4000;                            //Every 4 seconds
             StomachEnterTimer = 10000;                          //Every 10 seconds
             StomachEnterVisTimer = 0;                           //Always 3.5 seconds after Stomach Enter Timer
-            StomachEnterTarget = 0;                             //Target to be teleported to stomach
+            StomachEnterTarget.Clear();                         //Target to be teleported to stomach
         }
 
         InstanceScript* instance;
@@ -499,7 +499,7 @@ public:
         //-------------------
 
         //Phase transition
-        uint64 HoldPlayer;
+        ObjectGuid HoldPlayer;
 
         //Body Phase
         uint32 EyeTentacleTimer;
@@ -509,10 +509,10 @@ public:
         uint32 StomachAcidTimer;
         uint32 StomachEnterTimer;
         uint32 StomachEnterVisTimer;
-        uint64 StomachEnterTarget;
+        ObjectGuid StomachEnterTarget;
 
         //Stomach map, bool = true then in stomach
-        std::unordered_map<uint64, bool> Stomach_Map;
+        std::unordered_map<ObjectGuid, bool> Stomach_Map;
 
         void Reset() override
         {
@@ -548,7 +548,7 @@ public:
             if (Stomach_Map.empty())
                 return NULL;
 
-            std::unordered_map<uint64, bool>::const_iterator i = Stomach_Map.begin();
+            std::unordered_map<ObjectGuid, bool>::const_iterator i = Stomach_Map.begin();
 
             std::list<Unit*> temp;
             std::list<Unit*>::const_iterator j;
@@ -610,7 +610,7 @@ public:
                 return;
             }
 
-            me->SetTarget(0);
+            me->SetTarget(ObjectGuid::Empty);
 
             uint32 currentPhase = instance->GetData(DATA_CTHUN_PHASE);
             if (currentPhase == PHASE_CTHUN_STOMACH || currentPhase == PHASE_CTHUN_WEAK)
@@ -680,7 +680,7 @@ public:
                 //Body Phase
                 case PHASE_CTHUN_STOMACH:
                     //Remove Target field
-                    me->SetTarget(0);
+                    me->SetTarget(ObjectGuid::Empty);
 
                     //Weaken
                     if (FleshTentaclesKilled > 1)
@@ -692,7 +692,7 @@ public:
 
                         DoCast(me, SPELL_PURPLE_COLORATION, true);
 
-                        std::unordered_map<uint64, bool>::iterator i = Stomach_Map.begin();
+                        std::unordered_map<ObjectGuid, bool>::iterator i = Stomach_Map.begin();
 
                         //Kick all players out of stomach
                         while (i != Stomach_Map.end())
@@ -724,7 +724,7 @@ public:
                     if (StomachAcidTimer <= diff)
                     {
                         //Apply aura to all players in stomach
-                        std::unordered_map<uint64, bool>::iterator i = Stomach_Map.begin();
+                        std::unordered_map<ObjectGuid, bool>::iterator i = Stomach_Map.begin();
 
                         while (i != Stomach_Map.end())
                         {
@@ -786,7 +786,7 @@ public:
                                 DoTeleportPlayer(unit, STOMACH_X, STOMACH_Y, STOMACH_Z, STOMACH_O);
                             }
 
-                            StomachEnterTarget = 0;
+                            StomachEnterTarget.Clear();
                             StomachEnterVisTimer = 0;
                         } else StomachEnterVisTimer -= diff;
                     }
@@ -913,7 +913,6 @@ public:
             MindflayTimer = 500;
             KillSelfTimer = 35000;
 
-            Portal = 0;
             if (Creature* pPortal = me->SummonCreature(NPC_SMALL_PORTAL, *me, TEMPSUMMON_CORPSE_DESPAWN))
             {
                 pPortal->SetReactState(REACT_PASSIVE);
@@ -925,7 +924,7 @@ public:
 
         uint32 MindflayTimer;
         uint32 KillSelfTimer;
-        uint64 Portal;
+        ObjectGuid Portal;
 
         void JustDied(Unit* /*killer*/) override
         {
@@ -995,7 +994,6 @@ public:
 
             SetCombatMovement(false);
 
-            Portal = 0;
             if (Creature* pPortal = me->SummonCreature(NPC_SMALL_PORTAL, *me, TEMPSUMMON_CORPSE_DESPAWN))
             {
                 pPortal->SetReactState(REACT_PASSIVE);
@@ -1006,7 +1004,7 @@ public:
         uint32 GroundRuptureTimer;
         uint32 HamstringTimer;
         uint32 EvadeTimer;
-        uint64 Portal;
+        ObjectGuid Portal;
 
         void JustDied(Unit* /*killer*/) override
         {
@@ -1111,7 +1109,6 @@ public:
 
             SetCombatMovement(false);
 
-            Portal = 0;
             if (Creature* pPortal = me->SummonCreature(NPC_GIANT_PORTAL, *me, TEMPSUMMON_CORPSE_DESPAWN))
             {
                 pPortal->SetReactState(REACT_PASSIVE);
@@ -1123,7 +1120,7 @@ public:
         uint32 ThrashTimer;
         uint32 HamstringTimer;
         uint32 EvadeTimer;
-        uint64 Portal;
+        ObjectGuid Portal;
 
         void JustDied(Unit* /*killer*/) override
         {
@@ -1233,7 +1230,6 @@ public:
 
             SetCombatMovement(false);
 
-            Portal = 0;
             if (Creature* pPortal = me->SummonCreature(NPC_GIANT_PORTAL, *me, TEMPSUMMON_CORPSE_DESPAWN))
             {
                 pPortal->SetReactState(REACT_PASSIVE);
@@ -1242,7 +1238,7 @@ public:
         }
 
         uint32 BeamTimer;
-        uint64 Portal;
+        ObjectGuid Portal;
 
         void JustDied(Unit* /*killer*/) override
         {
diff --git a/src/server/scripts/Kalimdor/TempleOfAhnQiraj/boss_twinemperors.cpp b/src/server/scripts/Kalimdor/TempleOfAhnQiraj/boss_twinemperors.cpp
index e65dbacc1f2..c653064d62c 100644
--- a/src/server/scripts/Kalimdor/TempleOfAhnQiraj/boss_twinemperors.cpp
+++ b/src/server/scripts/Kalimdor/TempleOfAhnQiraj/boss_twinemperors.cpp
@@ -110,7 +110,7 @@ struct boss_twinemperorsAI : public ScriptedAI
 
     Creature* GetOtherBoss()
     {
-        return ObjectAccessor::GetCreature(*me, instance->GetData64(IAmVeklor() ? DATA_VEKNILASH : DATA_VEKLOR));
+        return ObjectAccessor::GetCreature(*me, instance->GetGuidData(IAmVeklor() ? DATA_VEKNILASH : DATA_VEKLOR));
     }
 
     void DamageTaken(Unit* /*done_by*/, uint32 &damage) override
diff --git a/src/server/scripts/Kalimdor/TempleOfAhnQiraj/boss_viscidus.cpp b/src/server/scripts/Kalimdor/TempleOfAhnQiraj/boss_viscidus.cpp
index 7f223f21269..fe6e0a435a7 100644
--- a/src/server/scripts/Kalimdor/TempleOfAhnQiraj/boss_viscidus.cpp
+++ b/src/server/scripts/Kalimdor/TempleOfAhnQiraj/boss_viscidus.cpp
@@ -272,7 +272,7 @@ class npc_glob_of_viscidus : public CreatureScript
             {
                 InstanceScript* Instance = me->GetInstanceScript();
 
-                if (Creature* Viscidus = me->GetMap()->GetCreature(Instance->GetData64(DATA_VISCIDUS)))
+                if (Creature* Viscidus = me->GetMap()->GetCreature(Instance->GetGuidData(DATA_VISCIDUS)))
                 {
                     if (BossAI* ViscidusAI = dynamic_cast<BossAI*>(Viscidus->GetAI()))
                         ViscidusAI->SummonedCreatureDespawn(me);
diff --git a/src/server/scripts/Kalimdor/TempleOfAhnQiraj/instance_temple_of_ahnqiraj.cpp b/src/server/scripts/Kalimdor/TempleOfAhnQiraj/instance_temple_of_ahnqiraj.cpp
index e6d9bd86a4d..456ff749e84 100644
--- a/src/server/scripts/Kalimdor/TempleOfAhnQiraj/instance_temple_of_ahnqiraj.cpp
+++ b/src/server/scripts/Kalimdor/TempleOfAhnQiraj/instance_temple_of_ahnqiraj.cpp
@@ -45,12 +45,12 @@ class instance_temple_of_ahnqiraj : public InstanceMapScript
             bool IsBossDied[3];
 
             //Storing Skeram, Vem and Kri.
-            uint64 SkeramGUID;
-            uint64 VemGUID;
-            uint64 KriGUID;
-            uint64 VeklorGUID;
-            uint64 VeknilashGUID;
-            uint64 ViscidusGUID;
+            ObjectGuid SkeramGUID;
+            ObjectGuid VemGUID;
+            ObjectGuid KriGUID;
+            ObjectGuid VeklorGUID;
+            ObjectGuid VeknilashGUID;
+            ObjectGuid ViscidusGUID;
 
             uint32 BugTrioDeathCount;
 
@@ -63,13 +63,6 @@ class instance_temple_of_ahnqiraj : public InstanceMapScript
                 IsBossDied[1] = false;
                 IsBossDied[2] = false;
 
-                SkeramGUID = 0;
-                VemGUID = 0;
-                KriGUID = 0;
-                VeklorGUID = 0;
-                VeknilashGUID = 0;
-                ViscidusGUID = 0;
-
                 BugTrioDeathCount = 0;
 
                 CthunPhase = 0;
@@ -134,7 +127,7 @@ class instance_temple_of_ahnqiraj : public InstanceMapScript
                 return 0;
             }
 
-            uint64 GetData64(uint32 identifier) const override
+            ObjectGuid GetGuidData(uint32 identifier) const override
             {
                 switch (identifier)
                 {
@@ -151,8 +144,8 @@ class instance_temple_of_ahnqiraj : public InstanceMapScript
                 case DATA_VISCIDUS:
                     return ViscidusGUID;
                 }
-                return 0;
-            }                                                       // end GetData64
+                return ObjectGuid::Empty;
+            }                                                       // end GetGuidData
 
             void SetData(uint32 type, uint32 data) override
             {
diff --git a/src/server/scripts/Kalimdor/TempleOfAhnQiraj/mob_anubisath_sentinel.cpp b/src/server/scripts/Kalimdor/TempleOfAhnQiraj/mob_anubisath_sentinel.cpp
index b8f6c0ed80e..7b20e5dd8a9 100644
--- a/src/server/scripts/Kalimdor/TempleOfAhnQiraj/mob_anubisath_sentinel.cpp
+++ b/src/server/scripts/Kalimdor/TempleOfAhnQiraj/mob_anubisath_sentinel.cpp
@@ -103,14 +103,16 @@ public:
             gatherOthersWhenAggro = true;
         }
 
-        uint64 NearbyGUID[3];
+        ObjectGuid NearbyGUID[3];
 
         void ClearBuddyList()
         {
-            NearbyGUID[0] = NearbyGUID[1] = NearbyGUID[2] = 0;
+            NearbyGUID[0].Clear();
+            NearbyGUID[1].Clear();
+            NearbyGUID[2].Clear();
         }
 
-        void AddBuddyToList(uint64 CreatureGUID)
+        void AddBuddyToList(ObjectGuid CreatureGUID)
         {
             if (CreatureGUID == me->GetGUID())
                 return;
@@ -130,7 +132,7 @@ public:
         void GiveBuddyMyList(Creature* c)
         {
             aqsentinelAI* cai = ENSURE_AI(aqsentinelAI, (c)->AI());
-            for (int i=0; i<3; ++i)
+            for (int32 i = 0; i < 3; ++i)
                 if (NearbyGUID[i] && NearbyGUID[i] != c->GetGUID())
                     cai->AddBuddyToList(NearbyGUID[i]);
             cai->AddBuddyToList(me->GetGUID());
@@ -138,14 +140,14 @@ public:
 
         void SendMyListToBuddies()
         {
-            for (int i=0; i<3; ++i)
+            for (int32 i = 0; i < 3; ++i)
                 if (Creature* pNearby = ObjectAccessor::GetCreature(*me, NearbyGUID[i]))
                     GiveBuddyMyList(pNearby);
         }
 
         void CallBuddiesToAttack(Unit* who)
         {
-            for (int i=0; i<3; ++i)
+            for (int32 i = 0; i < 3; ++i)
             {
                 Creature* c = ObjectAccessor::GetCreature(*me, NearbyGUID[i]);
                 if (c)
@@ -222,7 +224,7 @@ public:
         {
             if (!me->isDead())
             {
-                for (int i=0; i<3; ++i)
+                for (int i = 0; i < 3; ++i)
                 {
                     if (!NearbyGUID[i])
                         continue;
@@ -252,7 +254,7 @@ public:
 
         void JustDied(Unit* /*killer*/) override
         {
-            for (int ni=0; ni<3; ++ni)
+            for (int ni = 0; ni < 3; ++ni)
             {
                 Creature* sent = ObjectAccessor::GetCreature(*me, NearbyGUID[ni]);
                 if (!sent)
diff --git a/src/server/scripts/Kalimdor/WailingCaverns/instance_wailing_caverns.cpp b/src/server/scripts/Kalimdor/WailingCaverns/instance_wailing_caverns.cpp
index bb2fc8bca20..5d7202588a9 100644
--- a/src/server/scripts/Kalimdor/WailingCaverns/instance_wailing_caverns.cpp
+++ b/src/server/scripts/Kalimdor/WailingCaverns/instance_wailing_caverns.cpp
@@ -46,7 +46,7 @@ public:
         uint32 m_auiEncounter[MAX_ENCOUNTER];
 
         bool yelled;
-        uint64 NaralexGUID;
+        ObjectGuid NaralexGUID;
 
         void Initialize() override
         {
@@ -54,7 +54,6 @@ public:
             memset(&m_auiEncounter, 0, sizeof(m_auiEncounter));
 
             yelled = false;
-            NaralexGUID = 0;
         }
 
         void OnCreatureCreate(Creature* creature) override
@@ -99,10 +98,10 @@ public:
             return 0;
         }
 
-        uint64 GetData64(uint32 data) const override
+        ObjectGuid GetGuidData(uint32 data) const override
         {
             if (data == DATA_NARALEX)return NaralexGUID;
-            return 0;
+            return ObjectGuid::Empty;
         }
 
         std::string GetSaveData() override
diff --git a/src/server/scripts/Kalimdor/WailingCaverns/wailing_caverns.cpp b/src/server/scripts/Kalimdor/WailingCaverns/wailing_caverns.cpp
index bb872421197..522d6eee464 100644
--- a/src/server/scripts/Kalimdor/WailingCaverns/wailing_caverns.cpp
+++ b/src/server/scripts/Kalimdor/WailingCaverns/wailing_caverns.cpp
@@ -259,7 +259,7 @@ public:
                                 ++eventProgress;
                                 eventTimer = 15000;
                                 //CAST_AI(npc_escort::npc_escortAI, me->AI())->SetCanDefend(false);
-                                if (Creature* naralex = instance->instance->GetCreature(instance->GetData64(DATA_NARALEX)))
+                                if (Creature* naralex = instance->instance->GetCreature(instance->GetGuidData(DATA_NARALEX)))
                                     DoCast(naralex, SPELL_NARALEXS_AWAKENING, true);
                                 Talk(EMOTE_AWAKENING_RITUAL);
                             }
@@ -268,7 +268,7 @@ public:
                             {
                                 ++eventProgress;
                                 eventTimer = 15000;
-                                if (Creature* naralex = instance->instance->GetCreature(instance->GetData64(DATA_NARALEX)))
+                                if (Creature* naralex = instance->instance->GetCreature(instance->GetGuidData(DATA_NARALEX)))
                                     naralex->AI()->Talk(EMOTE_TROUBLED_SLEEP);
                                 me->SummonCreature(NPC_DEVIATE_MOCCASIN, 135.943f, 199.701f, -103.529f, 0, TEMPSUMMON_CORPSE_TIMED_DESPAWN, 15000);
                                 me->SummonCreature(NPC_DEVIATE_MOCCASIN, 151.08f,  221.13f,  -103.609f, 0, TEMPSUMMON_CORPSE_TIMED_DESPAWN, 15000);
@@ -279,7 +279,7 @@ public:
                             {
                                 ++eventProgress;
                                 eventTimer = 30000;
-                                if (Creature* naralex = instance->instance->GetCreature(instance->GetData64(DATA_NARALEX)))
+                                if (Creature* naralex = instance->instance->GetCreature(instance->GetGuidData(DATA_NARALEX)))
                                     naralex->AI()->Talk(EMOTE_WRITHE_IN_AGONY);
                                 me->SummonCreature(NPC_NIGHTMARE_ECTOPLASM, 133.413f, 207.188f, -102.469f, 0, TEMPSUMMON_CORPSE_TIMED_DESPAWN, 15000);
                                 me->SummonCreature(NPC_NIGHTMARE_ECTOPLASM, 142.857f, 218.645f, -102.905f, 0, TEMPSUMMON_CORPSE_TIMED_DESPAWN, 15000);
@@ -293,7 +293,7 @@ public:
                             if (eventProgress == 5)
                             {
                                 ++eventProgress;
-                                if (Creature* naralex = instance->instance->GetCreature(instance->GetData64(DATA_NARALEX)))
+                                if (Creature* naralex = instance->instance->GetCreature(instance->GetGuidData(DATA_NARALEX)))
                                     naralex->AI()->Talk(EMOTE_HORRENDOUS_VISION);
                                 me->SummonCreature(NPC_MUTANUS_THE_DEVOURER, 150.872f, 262.905f, -103.503f, 0, TEMPSUMMON_CORPSE_TIMED_DESPAWN, 300000);
                                 Talk(SAY_MUTANUS_THE_DEVOURER);
@@ -304,7 +304,7 @@ public:
                             {
                                 ++eventProgress;
                                 eventTimer = 3000;
-                                if (Creature* naralex = instance->instance->GetCreature(instance->GetData64(DATA_NARALEX)))
+                                if (Creature* naralex = instance->instance->GetCreature(instance->GetGuidData(DATA_NARALEX)))
                                 {
                                     if (me->HasAura(SPELL_NARALEXS_AWAKENING))
                                         me->RemoveAura(SPELL_NARALEXS_AWAKENING);
@@ -318,7 +318,7 @@ public:
                             {
                                 ++eventProgress;
                                 eventTimer = 6000;
-                                if (Creature* naralex = instance->instance->GetCreature(instance->GetData64(DATA_NARALEX)))
+                                if (Creature* naralex = instance->instance->GetCreature(instance->GetGuidData(DATA_NARALEX)))
                                     naralex->AI()->Talk(SAY_THANK_YOU);
                             }
                             else
@@ -326,7 +326,7 @@ public:
                             {
                                 ++eventProgress;
                                 eventTimer = 8000;
-                                if (Creature* naralex = instance->instance->GetCreature(instance->GetData64(DATA_NARALEX)))
+                                if (Creature* naralex = instance->instance->GetCreature(instance->GetGuidData(DATA_NARALEX)))
                                 {
                                     naralex->AI()->Talk(SAY_FAREWELL);
                                     naralex->AddAura(SPELL_FLIGHT_FORM, naralex);
@@ -340,7 +340,7 @@ public:
                             {
                                 ++eventProgress;
                                 eventTimer = 1500;
-                                if (Creature* naralex = instance->instance->GetCreature(instance->GetData64(DATA_NARALEX)))
+                                if (Creature* naralex = instance->instance->GetCreature(instance->GetGuidData(DATA_NARALEX)))
                                     naralex->GetMotionMaster()->MovePoint(25, naralex->GetPositionX(), naralex->GetPositionY(), naralex->GetPositionZ());
                             }
                             else
@@ -348,7 +348,7 @@ public:
                             {
                                 ++eventProgress;
                                 eventTimer = 2500;
-                                if (Creature* naralex = instance->instance->GetCreature(instance->GetData64(DATA_NARALEX)))
+                                if (Creature* naralex = instance->instance->GetCreature(instance->GetGuidData(DATA_NARALEX)))
                                 {
                                     naralex->GetMotionMaster()->MovePoint(0, 117.095512f, 247.107971f, -96.167870f);
                                     naralex->GetMotionMaster()->MovePoint(1, 90.388809f, 276.135406f, -83.389801f);
@@ -359,7 +359,7 @@ public:
                             else
                             if (eventProgress == 11)
                             {
-                                if (Creature* naralex = instance->instance->GetCreature(instance->GetData64(DATA_NARALEX)))
+                                if (Creature* naralex = instance->instance->GetCreature(instance->GetGuidData(DATA_NARALEX)))
                                     naralex->SetVisible(false);
                                 me->SetVisible(false);
                                 instance->SetData(TYPE_NARALEX_PART3, DONE);
diff --git a/src/server/scripts/Kalimdor/ZulFarrak/instance_zulfarrak.cpp b/src/server/scripts/Kalimdor/ZulFarrak/instance_zulfarrak.cpp
index 83f1724130c..393028e0446 100644
--- a/src/server/scripts/Kalimdor/ZulFarrak/instance_zulfarrak.cpp
+++ b/src/server/scripts/Kalimdor/ZulFarrak/instance_zulfarrak.cpp
@@ -111,13 +111,13 @@ public:
         instance_zulfarrak_InstanceMapScript(Map* map) : InstanceScript(map) { }
 
         uint32 GahzRillaEncounter;
-        uint64 ZumrahGUID;
-        uint64 BlyGUID;
-        uint64 WeegliGUID;
-        uint64 OroGUID;
-        uint64 RavenGUID;
-        uint64 MurtaGUID;
-        uint64 EndDoorGUID;
+        ObjectGuid ZumrahGUID;
+        ObjectGuid BlyGUID;
+        ObjectGuid WeegliGUID;
+        ObjectGuid OroGUID;
+        ObjectGuid RavenGUID;
+        ObjectGuid MurtaGUID;
+        ObjectGuid EndDoorGUID;
         uint32 PyramidPhase;
         uint32 major_wave_Timer;
         uint32 minor_wave_Timer;
@@ -127,14 +127,6 @@ public:
         void Initialize() override
         {
             SetHeaders(DataHeader);
-            GahzRillaEncounter = NOT_STARTED;
-            ZumrahGUID = 0;
-            BlyGUID = 0;
-            WeegliGUID = 0;
-            OroGUID = 0;
-            RavenGUID = 0;
-            MurtaGUID = 0;
-            EndDoorGUID = 0;
             PyramidPhase = 0;
             major_wave_Timer = 0;
             minor_wave_Timer = 0;
@@ -198,7 +190,7 @@ public:
             return 0;
         }
 
-        uint64 GetData64(uint32 data) const override
+        ObjectGuid GetGuidData(uint32 data) const override
         {
             switch (data)
             {
@@ -217,7 +209,7 @@ public:
                 case GO_END_DOOR:
                     return EndDoorGUID;
             }
-            return 0;
+            return ObjectGuid::Empty;
         }
 
         void SetData(uint32 type, uint32 data) override
@@ -315,11 +307,11 @@ public:
             };
         }
 
-        std::list<uint64> addsAtBase, movedadds;
+        GuidList addsAtBase, movedadds;
 
         void MoveNPCIfAlive(uint32 entry, float x, float y, float z, float o)
         {
-           if (Creature* npc = instance->GetCreature(GetData64(entry)))
+           if (Creature* npc = instance->GetCreature(GetGuidData(entry)))
            {
                if (npc->IsAlive())
                {
@@ -346,7 +338,7 @@ public:
 
         bool IsWaveAllDead()
         {
-            for (std::list<uint64>::iterator itr = addsAtBase.begin(); itr != addsAtBase.end(); ++itr)
+            for (GuidList::iterator itr = addsAtBase.begin(); itr != addsAtBase.end(); ++itr)
             {
                 if (Creature* add = instance->GetCreature((*itr)))
                 {
@@ -354,7 +346,7 @@ public:
                         return false;
                 }
             }
-            for (std::list<uint64>::iterator itr = movedadds.begin(); itr != movedadds.end(); ++itr)
+            for (GuidList::iterator itr = movedadds.begin(); itr != movedadds.end(); ++itr)
             {
                 if (Creature* add = instance->GetCreature(((*itr))))
                 {
diff --git a/src/server/scripts/Kalimdor/ZulFarrak/zulfarrak.cpp b/src/server/scripts/Kalimdor/ZulFarrak/zulfarrak.cpp
index 47d269a00ff..443bd1578d7 100644
--- a/src/server/scripts/Kalimdor/ZulFarrak/zulfarrak.cpp
+++ b/src/server/scripts/Kalimdor/ZulFarrak/zulfarrak.cpp
@@ -108,7 +108,6 @@ public:
             instance = creature->GetInstanceScript();
             postGossipStep = 0;
             Text_Timer = 0;
-            PlayerGUID = 0;
         }
 
         void Initialize()
@@ -123,7 +122,7 @@ public:
         uint32 Text_Timer;
         uint32 ShieldBash_Timer;
         uint32 Revenge_Timer;                                   //this is wrong, spell should never be used unless me->GetVictim() dodge, parry or block attack. Trinity support required.
-        uint64 PlayerGUID;
+        ObjectGuid PlayerGUID;
 
         void Reset() override
         {
@@ -142,7 +141,7 @@ public:
                     {
                         case 1:
                             //weegli doesn't fight - he goes & blows up the door
-                            if (Creature* pWeegli = instance->instance->GetCreature(instance->GetData64(ENTRY_WEEGLI)))
+                            if (Creature* pWeegli = instance->instance->GetCreature(instance->GetGuidData(ENTRY_WEEGLI)))
                                 pWeegli->AI()->DoAction(0);
                             Talk(SAY_1);
                             Text_Timer = 5000;
@@ -195,7 +194,7 @@ public:
 
         void switchFactionIfAlive(uint32 entry)
         {
-           if (Creature* crew = ObjectAccessor::GetCreature(*me, instance->GetData64(entry)))
+           if (Creature* crew = ObjectAccessor::GetCreature(*me, instance->GetGuidData(entry)))
                if (crew->IsAlive())
                    crew->setFaction(FACTION_HOSTILE);
         }
@@ -230,7 +229,7 @@ public:
 private:
     void initBlyCrewMember(InstanceScript* instance, uint32 entry, float x, float y, float z)
     {
-        if (Creature* crew = instance->instance->GetCreature(instance->GetData64(entry)))
+        if (Creature* crew = instance->instance->GetCreature(instance->GetGuidData(entry)))
         {
             crew->SetReactState(REACT_AGGRESSIVE);
             crew->SetWalk(true);
@@ -370,7 +369,7 @@ public:
             else
                 if (destroyingDoor)
                 {
-                    instance->DoUseDoorOrButton(instance->GetData64(GO_END_DOOR));
+                    instance->DoUseDoorOrButton(instance->GetGuidData(GO_END_DOOR));
                     /// @todo leave the area...
                     me->DespawnOrUnsummon();
                 };
diff --git a/src/server/scripts/Kalimdor/zone_azuremyst_isle.cpp b/src/server/scripts/Kalimdor/zone_azuremyst_isle.cpp
index 7974e1c0347..df695727866 100644
--- a/src/server/scripts/Kalimdor/zone_azuremyst_isle.cpp
+++ b/src/server/scripts/Kalimdor/zone_azuremyst_isle.cpp
@@ -67,7 +67,7 @@ public:
 
         void Initialize()
         {
-            pCaster = 0;
+            pCaster.Clear();
 
             SayThanksTimer = 0;
             RunAwayTimer = 0;
@@ -76,7 +76,7 @@ public:
             CanSayHelp = true;
         }
 
-        uint64 pCaster;
+        ObjectGuid pCaster;
 
         uint32 SayThanksTimer;
         uint32 RunAwayTimer;
@@ -430,13 +430,13 @@ public:
 
         void Initialize()
         {
-            SparkGUID = 0;
+            SparkGUID.Clear();
             Step = 0;
             EventStarted = false;
             SayTimer = 0;
         }
 
-        uint64 SparkGUID;
+        ObjectGuid SparkGUID;
 
         uint8 Step;
         uint32 SayTimer;
@@ -527,7 +527,7 @@ public:
 
             for (std::list<Player*>::const_iterator itr = players.begin(); itr != players.end(); ++itr)
                 if ((*itr)->GetQuestStatus(QUEST_TREES_COMPANY) == QUEST_STATUS_INCOMPLETE && (*itr)->HasAura(SPELL_TREE_DISGUISE))
-                    (*itr)->KilledMonsterCredit(NPC_SPARK, 0);
+                    (*itr)->KilledMonsterCredit(NPC_SPARK);
         }
 
         void DespawnNagaFlag(bool despawn)
@@ -686,7 +686,7 @@ class npc_stillpine_capitive : public CreatureScript
 
             void Initialize()
             {
-                _playerGUID = 0;
+                _playerGUID.Clear();
                 _movementComplete = false;
             }
 
@@ -736,7 +736,7 @@ class npc_stillpine_capitive : public CreatureScript
             }
 
         private:
-            uint64 _playerGUID;
+            ObjectGuid _playerGUID;
             EventMap _events;
             bool _movementComplete;
         };
diff --git a/src/server/scripts/Kalimdor/zone_bloodmyst_isle.cpp b/src/server/scripts/Kalimdor/zone_bloodmyst_isle.cpp
index 81a175b57b7..5e2f4519b1e 100644
--- a/src/server/scripts/Kalimdor/zone_bloodmyst_isle.cpp
+++ b/src/server/scripts/Kalimdor/zone_bloodmyst_isle.cpp
@@ -64,7 +64,7 @@ public:
             {
                 case 0:
                     if (Player* player = killer->ToPlayer())
-                        player->KilledMonsterCredit(NPC_EXPEDITION_RESEARCHER, 0);
+                        player->KilledMonsterCredit(NPC_EXPEDITION_RESEARCHER);
                     break;
                 case 1:
                 case 2:
diff --git a/src/server/scripts/Kalimdor/zone_desolace.cpp b/src/server/scripts/Kalimdor/zone_desolace.cpp
index 5cb58058151..371784aec42 100644
--- a/src/server/scripts/Kalimdor/zone_desolace.cpp
+++ b/src/server/scripts/Kalimdor/zone_desolace.cpp
@@ -100,7 +100,7 @@ public:
     {
         if (player->HasAura(SPELL_KODO_KOMBO_PLAYER_BUFF) && creature->HasAura(SPELL_KODO_KOMBO_DESPAWN_BUFF))
         {
-            player->TalkedToCreature(creature->GetEntry(), 0);
+            player->TalkedToCreature(creature->GetEntry(), ObjectGuid::Empty);
             player->RemoveAurasDueToSpell(SPELL_KODO_KOMBO_PLAYER_BUFF);
         }
 
diff --git a/src/server/scripts/Kalimdor/zone_dustwallow_marsh.cpp b/src/server/scripts/Kalimdor/zone_dustwallow_marsh.cpp
index 46d4d3cd88c..e0b03d54f69 100644
--- a/src/server/scripts/Kalimdor/zone_dustwallow_marsh.cpp
+++ b/src/server/scripts/Kalimdor/zone_dustwallow_marsh.cpp
@@ -652,7 +652,7 @@ public:
         if (Creature* prisoner = go->FindNearestCreature(NPC_THERAMORE_PRISONER, 1.0f))
         {
             if (player)
-                player->KilledMonsterCredit(NPC_THERAMORE_PRISONER, 0);
+                player->KilledMonsterCredit(NPC_THERAMORE_PRISONER);
 
             prisoner->AI()->Talk(SAY_FREE); // We also emote cry here (handled in creature_text.emote)
             prisoner->DespawnOrUnsummon(6000);
diff --git a/src/server/scripts/Kalimdor/zone_felwood.cpp b/src/server/scripts/Kalimdor/zone_felwood.cpp
index f8d9d1bbc2a..e4d5925c950 100644
--- a/src/server/scripts/Kalimdor/zone_felwood.cpp
+++ b/src/server/scripts/Kalimdor/zone_felwood.cpp
@@ -77,7 +77,7 @@ public:
             lasher_clicked = true;
 
             if (Player* player = clicker->ToPlayer())
-                player->KilledMonsterCredit(NPC_WHISPERWIND_LASHER, 0);
+                player->KilledMonsterCredit(NPC_WHISPERWIND_LASHER);
         }
 
         void UpdateAI(uint32 diff) override
diff --git a/src/server/scripts/Kalimdor/zone_mulgore.cpp b/src/server/scripts/Kalimdor/zone_mulgore.cpp
index 0ad44c29b13..2ee3d20e44d 100644
--- a/src/server/scripts/Kalimdor/zone_mulgore.cpp
+++ b/src/server/scripts/Kalimdor/zone_mulgore.cpp
@@ -70,14 +70,14 @@ public:
         {
             EventActive = false;
             IsMovingToLunch = false;
-            PlayerGUID = 0;
+            PlayerGUID.Clear();
             EventTimer = 5000;
             EventPhase = 0;
         }
 
         bool EventActive;
         bool IsMovingToLunch;
-        uint64 PlayerGUID;
+        ObjectGuid PlayerGUID;
         uint32 EventTimer;
         uint8 EventPhase;
 
diff --git a/src/server/scripts/Kalimdor/zone_silithus.cpp b/src/server/scripts/Kalimdor/zone_silithus.cpp
index e6e03d923c9..6bb33cf2cd4 100644
--- a/src/server/scripts/Kalimdor/zone_silithus.cpp
+++ b/src/server/scripts/Kalimdor/zone_silithus.cpp
@@ -97,7 +97,7 @@ public:
             case GOSSIP_ACTION_INFO_DEF + 6:
                 player->SEND_GOSSIP_MENU(7761, creature->GetGUID());
                                                                 //'kill' our trigger to update quest status
-                player->KilledMonsterCredit(TRIGGER_RUTGAR, 0);
+                player->KilledMonsterCredit(TRIGGER_RUTGAR);
                 break;
 
             case GOSSIP_ACTION_INFO_DEF + 9:
@@ -123,7 +123,7 @@ public:
             case GOSSIP_ACTION_INFO_DEF + 14:
                 player->SEND_GOSSIP_MENU(7767, creature->GetGUID());
                                                                 //'kill' our trigger to update quest status
-                player->KilledMonsterCredit(TRIGGER_FRANKAL, 0);
+                player->KilledMonsterCredit(TRIGGER_FRANKAL);
                 break;
         }
         return true;
@@ -431,24 +431,24 @@ public:
         {
             AnimationTimer = 1500;
             AnimationCount = 0;
-            AnachronosQuestTriggerGUID = 0;
-            MerithraGUID = 0;
-            ArygosGUID = 0;
-            CaelestraszGUID = 0;
-            FandralGUID = 0;
-            PlayerGUID = 0;
+            AnachronosQuestTriggerGUID.Clear();
+            MerithraGUID.Clear();
+            ArygosGUID.Clear();
+            CaelestraszGUID.Clear();
+            FandralGUID.Clear();
+            PlayerGUID.Clear();
             eventEnd = false;
         }
 
         uint32 AnimationTimer;
         uint8 AnimationCount;
 
-        uint64 AnachronosQuestTriggerGUID;
-        uint64 MerithraGUID;
-        uint64 ArygosGUID;
-        uint64 CaelestraszGUID;
-        uint64 FandralGUID;
-        uint64 PlayerGUID;
+        ObjectGuid AnachronosQuestTriggerGUID;
+        ObjectGuid MerithraGUID;
+        ObjectGuid ArygosGUID;
+        ObjectGuid CaelestraszGUID;
+        ObjectGuid FandralGUID;
+        ObjectGuid PlayerGUID;
         bool eventEnd;
 
         void Reset() override
@@ -485,7 +485,7 @@ public:
                         Fandral->AI()->Talk(FANDRAL_SAY_1, me);
                         break;
                     case 2:
-                        Fandral->SetTarget(0);
+                        Fandral->SetTarget(ObjectGuid::Empty);
                         Merithra->AI()->Talk(MERITHRA_EMOTE_1);
                         break;
                     case 3:
@@ -502,7 +502,7 @@ public:
                         Merithra->AI()->Talk(MERITHRA_SAY_2);
                         break;
                     case 7:
-                        Caelestrasz->SetTarget(0);
+                        Caelestrasz->SetTarget(ObjectGuid::Empty);
                         Merithra->GetMotionMaster()->MoveCharge(-8065, 1530, 2.61f, 10);
                         break;
                     case 8:
@@ -769,14 +769,14 @@ public:
 
         void Initialize()
         {
-            MobGUID = 0;
-            PlayerGUID = 0;
+            MobGUID.Clear();
+            PlayerGUID.Clear();
             Timers = false;
             hasTarget = false;
         }
 
-        uint64 MobGUID;
-        uint64 PlayerGUID;
+        ObjectGuid MobGUID;
+        ObjectGuid PlayerGUID;
         uint32 SpellTimer1, SpellTimer2, SpellTimer3, SpellTimer4;
         bool Timers;
         bool hasTarget;
@@ -890,7 +890,7 @@ public:
 
         void Initialize()
         {
-            PlayerGUID = 0;
+            PlayerGUID.Clear();
 
             WaveTimer = 2000;
             AnnounceTimer = 1000;
@@ -902,7 +902,7 @@ public:
             Failed = false;
         }
 
-        uint64 PlayerGUID;
+        ObjectGuid PlayerGUID;
 
         uint32 WaveTimer;
         uint32 AnnounceTimer;
diff --git a/src/server/scripts/Kalimdor/zone_tanaris.cpp b/src/server/scripts/Kalimdor/zone_tanaris.cpp
index 6c0151ff931..4528409c126 100644
--- a/src/server/scripts/Kalimdor/zone_tanaris.cpp
+++ b/src/server/scripts/Kalimdor/zone_tanaris.cpp
@@ -46,7 +46,12 @@ enum Aquementas
     AGGRO_YELL_AQUE     = 0,
 
     SPELL_AQUA_JET      = 13586,
-    SPELL_FROST_SHOCK   = 15089
+    SPELL_FROST_SHOCK   = 15089,
+
+    ITEM_BOOK_OF_AQUOR  = 11169,
+    ITEM_SILVERY_CLAWS  = 11172,
+    ITEM_IRONTREE_HEART = 11173,
+    ITEM_SILVER_TOTEM   = 11522
 };
 
 class npc_aquementas : public CreatureScript
@@ -94,15 +99,15 @@ public:
         {
             Player* player = receiver->ToPlayer();
 
-            if (player && player->HasItemCount(11169, 1, false) &&
-                player->HasItemCount(11172, 11, false) &&
-                player->HasItemCount(11173, 1, false) &&
-                !player->HasItemCount(11522, 1, true))
+            if (player && player->HasItemCount(ITEM_BOOK_OF_AQUOR, 1, false) &&
+                player->HasItemCount(ITEM_SILVERY_CLAWS, 11, false) &&
+                player->HasItemCount(ITEM_IRONTREE_HEART, 1, false) &&
+                !player->HasItemCount(ITEM_SILVER_TOTEM, 1, true))
             {
                 ItemPosCountVec dest;
                 uint8 msg = player->CanStoreNewItem(NULL_BAG, NULL_SLOT, dest, 11522, 1, NULL);
                 if (msg == EQUIP_ERR_OK)
-                    player->StoreNewItem(dest, 11522, 1, true);
+                    player->StoreNewItem(dest, ITEM_SILVER_TOTEM, true);
             }
         }
 
@@ -172,7 +177,10 @@ enum CustodianOfTime
     WHISPER_CUSTODIAN_11    = 10,
     WHISPER_CUSTODIAN_12    = 11,
     WHISPER_CUSTODIAN_13    = 12,
-    WHISPER_CUSTODIAN_14    = 13
+    WHISPER_CUSTODIAN_14    = 13,
+
+    QUEST_CAVERNS_OF_TIME   = 10277,
+    SPELL_QID_10277         = 34883
 };
 
 class npc_custodian_of_time : public CreatureScript
@@ -248,9 +256,9 @@ public:
                         break;
                     case 24:
                         Talk(WHISPER_CUSTODIAN_14, player);
-                        DoCast(player, 34883);
+                        DoCast(player, SPELL_QID_10277);
                         // below here is temporary workaround, to be removed when spell works properly
-                        player->AreaExploredOrEventHappens(10277);
+                        player->AreaExploredOrEventHappens(QUEST_CAVERNS_OF_TIME);
                         break;
                 }
             }
@@ -478,14 +486,14 @@ public:
             PostEventTimer = 1000;
             PhasePostEvent = 0;
 
-            TortaGUID = 0;
+            TortaGUID.Clear();
         }
 
         uint32 CheckSpeechTimer;
         uint32 PostEventTimer;
         uint32 PhasePostEvent;
 
-        uint64 TortaGUID;
+        ObjectGuid TortaGUID;
 
         void Reset() override
         {
diff --git a/src/server/scripts/Kalimdor/zone_the_barrens.cpp b/src/server/scripts/Kalimdor/zone_the_barrens.cpp
index 3670e225fd7..c2b0d864b79 100644
--- a/src/server/scripts/Kalimdor/zone_the_barrens.cpp
+++ b/src/server/scripts/Kalimdor/zone_the_barrens.cpp
@@ -328,14 +328,14 @@ public:
             WaveTimer = 600000;
             ChallengerChecker = 0;
             Wave = 0;
-            PlayerGUID = 0;
+            PlayerGUID.Clear();
 
             for (uint8 i = 0; i < 6; ++i)
             {
-                AffrayChallenger[i] = 0;
+                AffrayChallenger[i].Clear();
                 ChallengerDown[i] = false;
             }
-            BigWill = 0;
+            BigWill.Clear();
         }
 
         bool EventInProgress;
@@ -345,9 +345,9 @@ public:
         uint8 Wave;
         uint32 WaveTimer;
         uint32 ChallengerChecker;
-        uint64 PlayerGUID;
-        uint64 AffrayChallenger[6];
-        uint64 BigWill;
+        ObjectGuid PlayerGUID;
+        ObjectGuid AffrayChallenger[6];
+        ObjectGuid BigWill;
 
         void Reset() override
         {
diff --git a/src/server/scripts/Kalimdor/zone_winterspring.cpp b/src/server/scripts/Kalimdor/zone_winterspring.cpp
index 58d9b115398..ee73d9b27a9 100644
--- a/src/server/scripts/Kalimdor/zone_winterspring.cpp
+++ b/src/server/scripts/Kalimdor/zone_winterspring.cpp
@@ -318,11 +318,6 @@ public:
             DialogueHelper(introDialogue)
         {
             Initialize();
-            _firstPriestessGUID = 0;
-            _secondPriestessGUID = 0;
-            _guardEluneGUID = 0;
-            _voiceEluneGUID = 0;
-            _altarGUID = 0;
         }
 
         void Initialize()
@@ -332,11 +327,11 @@ public:
 
         uint32 _delayTimer;
 
-        uint64 _firstPriestessGUID;
-        uint64 _secondPriestessGUID;
-        uint64 _guardEluneGUID;
-        uint64 _voiceEluneGUID;
-        uint64 _altarGUID;
+        ObjectGuid _firstPriestessGUID;
+        ObjectGuid _secondPriestessGUID;
+        ObjectGuid _guardEluneGUID;
+        ObjectGuid _voiceEluneGUID;
+        ObjectGuid _altarGUID;
 
         void Reset() override
         {
diff --git a/src/server/scripts/Northrend/AzjolNerub/Ahnkahet/boss_jedoga_shadowseeker.cpp b/src/server/scripts/Northrend/AzjolNerub/Ahnkahet/boss_jedoga_shadowseeker.cpp
index 7ae8730d57b..4cb401a6e16 100644
--- a/src/server/scripts/Northrend/AzjolNerub/Ahnkahet/boss_jedoga_shadowseeker.cpp
+++ b/src/server/scripts/Northrend/AzjolNerub/Ahnkahet/boss_jedoga_shadowseeker.cpp
@@ -107,8 +107,8 @@ public:
             if (!bFirstTime)
                 instance->SetBossState(DATA_JEDOGA_SHADOWSEEKER, FAIL);
 
-            instance->SetData64(DATA_PL_JEDOGA_TARGET, 0);
-            instance->SetData64(DATA_ADD_JEDOGA_OPFER, 0);
+            instance->SetGuidData(DATA_PL_JEDOGA_TARGET, ObjectGuid::Empty);
+            instance->SetGuidData(DATA_ADD_JEDOGA_OPFER, ObjectGuid::Empty);
             instance->SetData(DATA_JEDOGA_RESET_INITIANDS, 0);
             MoveUp();
 
@@ -215,7 +215,7 @@ public:
             }
             else
             {
-                if (Unit* target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_PL_JEDOGA_TARGET)))
+                if (Unit* target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_PL_JEDOGA_TARGET)))
                 {
                     AttackStart(target);
                     instance->SetData(DATA_JEDOGA_RESET_INITIANDS, 0);
@@ -248,13 +248,14 @@ public:
 
         void OpferRufen()
         {
-            uint64 opfer = instance->GetData64(DATA_ADD_JEDOGA_INITIAND);
+            ObjectGuid opfer = instance->GetGuidData(DATA_ADD_JEDOGA_INITIAND);
 
             if (opfer)
             {
                 Talk(TEXT_SACRIFICE_1);
-                instance->SetData64(DATA_ADD_JEDOGA_OPFER, opfer);
-            } else
+                instance->SetGuidData(DATA_ADD_JEDOGA_OPFER, opfer);
+            }
+            else
                 bCanDown = true;
         }
 
@@ -380,7 +381,7 @@ public:
 
             if (bWalking)
             {
-                if (Creature* boss = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_JEDOGA_SHADOWSEEKER)))
+                if (Creature* boss = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_JEDOGA_SHADOWSEEKER)))
                 {
                     if (!ENSURE_AI(boss_jedoga_shadowseeker::boss_jedoga_shadowseekerAI, boss->AI())->bOpFerok)
                         ENSURE_AI(boss_jedoga_shadowseeker::boss_jedoga_shadowseekerAI, boss->AI())->bOpFerokFail = true;
@@ -389,12 +390,12 @@ public:
                         boss->AI()->DoAction(ACTION_INITIAND_KILLED);
                 }
 
-                instance->SetData64(DATA_ADD_JEDOGA_OPFER, 0);
+                instance->SetGuidData(DATA_ADD_JEDOGA_OPFER, ObjectGuid::Empty);
 
                 bWalking = false;
             }
             if (killer->GetTypeId() == TYPEID_PLAYER)
-                instance->SetData64(DATA_PL_JEDOGA_TARGET, killer->GetGUID());
+                instance->SetGuidData(DATA_PL_JEDOGA_TARGET, killer->GetGUID());
         }
 
         void EnterCombat(Unit* /*who*/) override
@@ -427,7 +428,7 @@ public:
             {
                 case 1:
                     {
-                        Creature* boss = me->GetMap()->GetCreature(instance->GetData64(DATA_JEDOGA_SHADOWSEEKER));
+                        Creature* boss = me->GetMap()->GetCreature(instance->GetGuidData(DATA_JEDOGA_SHADOWSEEKER));
                         if (boss)
                         {
                             ENSURE_AI(boss_jedoga_shadowseeker::boss_jedoga_shadowseekerAI, boss->AI())->bOpFerok = true;
@@ -443,7 +444,7 @@ public:
         {
             if (bCheckTimer <= diff)
             {
-                if (me->GetGUID() == instance->GetData64(DATA_ADD_JEDOGA_OPFER) && !bWalking)
+                if (me->GetGUID() == instance->GetGuidData(DATA_ADD_JEDOGA_OPFER) && !bWalking)
                 {
                     me->RemoveAurasDueToSpell(SPELL_SPHERE_VISUAL);
                     me->ApplySpellImmune(0, IMMUNITY_DAMAGE, SPELL_SCHOOL_MASK_NORMAL, false);
diff --git a/src/server/scripts/Northrend/AzjolNerub/Ahnkahet/boss_prince_taldaram.cpp b/src/server/scripts/Northrend/AzjolNerub/Ahnkahet/boss_prince_taldaram.cpp
index 9cc8540342f..cf80f21d290 100644
--- a/src/server/scripts/Northrend/AzjolNerub/Ahnkahet/boss_prince_taldaram.cpp
+++ b/src/server/scripts/Northrend/AzjolNerub/Ahnkahet/boss_prince_taldaram.cpp
@@ -88,16 +88,14 @@ class boss_prince_taldaram : public CreatureScript
             boss_prince_taldaramAI(Creature* creature) : BossAI(creature, DATA_PRINCE_TALDARAM)
             {
                 me->SetDisableGravity(true);
-                _flameSphereTargetGUID = 0;
-                _embraceTargetGUID = 0;
                 _embraceTakenDamage = 0;
             }
 
             void Reset() override
             {
                 _Reset();
-                _flameSphereTargetGUID = 0;
-                _embraceTargetGUID = 0;
+                _flameSphereTargetGUID.Clear();
+                _embraceTargetGUID.Clear();
                 _embraceTakenDamage = 0;
             }
 
@@ -194,7 +192,7 @@ class boss_prince_taldaram : public CreatureScript
                             events.ScheduleEvent(EVENT_FEEDING, 20000);
                             break;
                         case EVENT_FEEDING:
-                            _embraceTargetGUID = 0;
+                            _embraceTargetGUID.Clear();
                             break;
                         default:
                             break;
@@ -213,7 +211,7 @@ class boss_prince_taldaram : public CreatureScript
                     _embraceTakenDamage += damage;
                     if (_embraceTakenDamage > DUNGEON_MODE<uint32>(DATA_EMBRACE_DMG, H_DATA_EMBRACE_DMG))
                     {
-                        _embraceTargetGUID = 0;
+                        _embraceTargetGUID.Clear();
                         me->CastStop();
                     }
                 }
@@ -231,7 +229,7 @@ class boss_prince_taldaram : public CreatureScript
                     return;
 
                 if (victim->GetGUID() == _embraceTargetGUID)
-                    _embraceTargetGUID = 0;
+                    _embraceTargetGUID.Clear();
 
                 Talk(SAY_SLAY);
             }
@@ -263,12 +261,12 @@ class boss_prince_taldaram : public CreatureScript
                 me->SetDisableGravity(false);
                 me->GetMotionMaster()->MoveLand(0, me->GetHomePosition());
                 Talk(SAY_WARNING);
-                instance->HandleGameObject(instance->GetData64(DATA_PRINCE_TALDARAM_PLATFORM), true);
+                instance->HandleGameObject(instance->GetGuidData(DATA_PRINCE_TALDARAM_PLATFORM), true);
             }
 
         private:
-            uint64 _flameSphereTargetGUID;
-            uint64 _embraceTargetGUID;
+            ObjectGuid _flameSphereTargetGUID;
+            ObjectGuid _embraceTargetGUID;
             uint32 _embraceTakenDamage;
         };
 
@@ -288,7 +286,6 @@ class npc_prince_taldaram_flame_sphere : public CreatureScript
         {
             npc_prince_taldaram_flame_sphereAI(Creature* creature) : ScriptedAI(creature)
             {
-                _flameSphereTargetGUID = 0;
             }
 
             void Reset() override
@@ -296,13 +293,13 @@ class npc_prince_taldaram_flame_sphere : public CreatureScript
                 DoCast(me, SPELL_FLAME_SPHERE_SPAWN_EFFECT, true);
                 DoCast(me, SPELL_FLAME_SPHERE_VISUAL, true);
 
-                _flameSphereTargetGUID = 0;
+                _flameSphereTargetGUID.Clear();
                 _events.Reset();
                 _events.ScheduleEvent(EVENT_START_MOVE, 3 * IN_MILLISECONDS);
                 _events.ScheduleEvent(EVENT_DESPAWN, 13 * IN_MILLISECONDS);
             }
 
-            void SetGUID(uint64 guid, int32 /*id = 0*/) override
+            void SetGUID(ObjectGuid guid, int32 /*id = 0*/) override
             {
                 _flameSphereTargetGUID = guid;
             }
@@ -364,7 +361,7 @@ class npc_prince_taldaram_flame_sphere : public CreatureScript
 
         private:
             EventMap _events;
-            uint64 _flameSphereTargetGUID;
+            ObjectGuid _flameSphereTargetGUID;
         };
 
         CreatureAI* GetAI(Creature* creature) const override
@@ -385,7 +382,7 @@ class go_prince_taldaram_sphere : public GameObjectScript
             if (!instance)
                 return false;
 
-            Creature* PrinceTaldaram = ObjectAccessor::GetCreature(*go, instance->GetData64(DATA_PRINCE_TALDARAM));
+            Creature* PrinceTaldaram = ObjectAccessor::GetCreature(*go, instance->GetGuidData(DATA_PRINCE_TALDARAM));
             if (PrinceTaldaram && PrinceTaldaram->IsAlive())
             {
                 go->SetFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
diff --git a/src/server/scripts/Northrend/AzjolNerub/Ahnkahet/instance_ahnkahet.cpp b/src/server/scripts/Northrend/AzjolNerub/Ahnkahet/instance_ahnkahet.cpp
index 7c9ed240959..0bb2010a9d6 100644
--- a/src/server/scripts/Northrend/AzjolNerub/Ahnkahet/instance_ahnkahet.cpp
+++ b/src/server/scripts/Northrend/AzjolNerub/Ahnkahet/instance_ahnkahet.cpp
@@ -39,21 +39,10 @@ class instance_ahnkahet : public InstanceMapScript
                 SetBossNumber(EncounterCount);
                 LoadDoorData(doorData);
 
-                ElderNadoxGUID              = 0;
-                PrinceTaldaramGUID          = 0;
-                JedogaShadowseekerGUID      = 0;
-                AmanitarGUID                = 0;
-                HeraldVolazjGUID            = 0;
-
-                PrinceTaldaramPlatformGUID  = 0;
-                JedogaSacrifices            = 0;
-                JedogaTarget                = 0;
                 SwitchTrigger               = 0;
 
                 SpheresState[0]             = 0;
                 SpheresState[1]             = 0;
-
-                InitiandGUIDs.clear();
             }
 
             void OnCreatureCreate(Creature* creature) override
@@ -90,7 +79,7 @@ class instance_ahnkahet : public InstanceMapScript
                     case GO_PRINCE_TALDARAM_PLATFORM:
                         PrinceTaldaramPlatformGUID = go->GetGUID();
                         if (GetBossState(DATA_PRINCE_TALDARAM) == DONE)
-                            HandleGameObject(0, true, go);
+                            HandleGameObject(ObjectGuid::Empty, true, go);
                         break;
                     case GO_SPHERE_1:
                         if (SpheresState[0])
@@ -142,7 +131,7 @@ class instance_ahnkahet : public InstanceMapScript
                         SwitchTrigger = data;
                         break;
                     case DATA_JEDOGA_RESET_INITIANDS:
-                        for (uint64 guid : InitiandGUIDs)
+                        for (ObjectGuid guid : InitiandGUIDs)
                         {
                             if (Creature* creature = instance->GetCreature(guid))
                             {
@@ -165,7 +154,7 @@ class instance_ahnkahet : public InstanceMapScript
                     case DATA_SPHERE_2:
                         return SpheresState[type - DATA_SPHERE_1];
                     case DATA_ALL_INITIAND_DEAD:
-                        for (uint64 guid : InitiandGUIDs)
+                        for (ObjectGuid guid : InitiandGUIDs)
                         {
                             Creature* cr = instance->GetCreature(guid);
                             if (!cr || cr->IsAlive())
@@ -180,7 +169,7 @@ class instance_ahnkahet : public InstanceMapScript
                 return 0;
             }
 
-            void SetData64(uint32 type, uint64 data) override
+            void SetGuidData(uint32 type, ObjectGuid  data) override
             {
                 switch (type)
                 {
@@ -195,7 +184,7 @@ class instance_ahnkahet : public InstanceMapScript
                 }
             }
 
-            uint64 GetData64(uint32 type) const override
+            ObjectGuid GetGuidData(uint32 type) const override
             {
                 switch (type)
                 {
@@ -213,16 +202,16 @@ class instance_ahnkahet : public InstanceMapScript
                         return PrinceTaldaramPlatformGUID;
                     case DATA_ADD_JEDOGA_INITIAND:
                     {
-                        std::vector<uint64> vInitiands;
-                        vInitiands.clear();
-                        for (uint64 guid : InitiandGUIDs)
+                        GuidVector vInitiands;
+                        vInitiands.reserve(InitiandGUIDs.size());
+                        for (ObjectGuid guid : InitiandGUIDs)
                         {
                             Creature* cr = instance->GetCreature(guid);
                             if (cr && cr->IsAlive())
                                 vInitiands.push_back(guid);
                         }
                         if (vInitiands.empty())
-                            return 0;
+                            return ObjectGuid::Empty;
 
                         return Trinity::Containers::SelectRandomContainerElement(vInitiands);
                     }
@@ -233,7 +222,7 @@ class instance_ahnkahet : public InstanceMapScript
                     default:
                         break;
                 }
-                return 0;
+                return ObjectGuid::Empty;
             }
 
             bool SetBossState(uint32 type, EncounterState state) override
@@ -246,11 +235,9 @@ class instance_ahnkahet : public InstanceMapScript
                     case DATA_JEDOGA_SHADOWSEEKER:
                         if (state == DONE)
                         {
-                            for (uint64 guid : InitiandGUIDs)
-                            {
+                            for (ObjectGuid guid : InitiandGUIDs)
                                 if (Creature* cr = instance->GetCreature(guid))
                                     cr->DespawnOrUnsummon();
-                            }
                         }
                         break;
                     default:
@@ -271,17 +258,17 @@ class instance_ahnkahet : public InstanceMapScript
             }
 
         protected:
-            uint64 ElderNadoxGUID;
-            uint64 PrinceTaldaramGUID;
-            uint64 JedogaShadowseekerGUID;
-            uint64 AmanitarGUID;
-            uint64 HeraldVolazjGUID;
+            ObjectGuid ElderNadoxGUID;
+            ObjectGuid PrinceTaldaramGUID;
+            ObjectGuid JedogaShadowseekerGUID;
+            ObjectGuid AmanitarGUID;
+            ObjectGuid HeraldVolazjGUID;
 
-            uint64 PrinceTaldaramPlatformGUID;
-            uint64 JedogaSacrifices;
-            uint64 JedogaTarget;
+            ObjectGuid PrinceTaldaramPlatformGUID;
+            ObjectGuid JedogaSacrifices;
+            ObjectGuid JedogaTarget;
 
-            std::set<uint64> InitiandGUIDs;
+            GuidSet InitiandGUIDs;
 
             uint32 SpheresState[2];
             uint8 SwitchTrigger;
diff --git a/src/server/scripts/Northrend/AzjolNerub/AzjolNerub/boss_anubarak.cpp b/src/server/scripts/Northrend/AzjolNerub/AzjolNerub/boss_anubarak.cpp
index 49d0840f08a..1d437fb18a5 100644
--- a/src/server/scripts/Northrend/AzjolNerub/AzjolNerub/boss_anubarak.cpp
+++ b/src/server/scripts/Northrend/AzjolNerub/AzjolNerub/boss_anubarak.cpp
@@ -96,7 +96,6 @@ public:
             VenomancerTimer = 0;
             DatterTimer = 0;
             DelayTimer = 0;
-            ImpaleTarget = 0;
         }
 
         void Initialize()
@@ -110,6 +109,7 @@ public:
             UndergroundPhase = 0;
             Channeling = false;
             ImpalePhase = IMPALE_PHASE_TARGET;
+            ImpaleTarget.Clear();
         }
 
         InstanceScript* instance;
@@ -130,7 +130,7 @@ public:
 
         uint32 ImpaleTimer;
         uint32 ImpalePhase;
-        uint64 ImpaleTarget;
+        ObjectGuid ImpaleTarget;
 
         SummonList Summons;
 
diff --git a/src/server/scripts/Northrend/AzjolNerub/AzjolNerub/boss_krikthir_the_gatewatcher.cpp b/src/server/scripts/Northrend/AzjolNerub/AzjolNerub/boss_krikthir_the_gatewatcher.cpp
index 00aa2120225..bdb060815d2 100644
--- a/src/server/scripts/Northrend/AzjolNerub/AzjolNerub/boss_krikthir_the_gatewatcher.cpp
+++ b/src/server/scripts/Northrend/AzjolNerub/AzjolNerub/boss_krikthir_the_gatewatcher.cpp
@@ -441,7 +441,7 @@ class npc_watcher_gashra : public CreatureScript
 
             void JustDied(Unit* /*killer*/) override
             {
-                Creature* krikthir = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_KRIKTHIR_THE_GATEWATCHER));
+                Creature* krikthir = _instance->GetCreature(DATA_KRIKTHIR_THE_GATEWATCHER);
                 if (krikthir && krikthir->IsAlive())
                     krikthir->AI()->Talk(SAY_PREFIGHT);
             }
@@ -514,7 +514,7 @@ class npc_watcher_narjil : public CreatureScript
 
             void JustDied(Unit* /*killer*/) override
             {
-                Creature* krikthir = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_KRIKTHIR_THE_GATEWATCHER));
+                Creature* krikthir = _instance->GetCreature(DATA_KRIKTHIR_THE_GATEWATCHER);
                 if (krikthir && krikthir->IsAlive())
                     krikthir->AI()->Talk(SAY_PREFIGHT);
             }
@@ -591,7 +591,7 @@ class npc_watcher_silthik : public CreatureScript
 
             void JustDied(Unit* /*killer*/) override
             {
-                Creature* krikthir = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_KRIKTHIR_THE_GATEWATCHER));
+                Creature* krikthir = _instance->GetCreature(DATA_KRIKTHIR_THE_GATEWATCHER);
                 if (krikthir && krikthir->IsAlive())
                     krikthir->AI()->Talk(SAY_PREFIGHT);
             }
@@ -645,9 +645,7 @@ class npc_watcher_silthik : public CreatureScript
 class achievement_watch_him_die : public AchievementCriteriaScript
 {
     public:
-        achievement_watch_him_die() : AchievementCriteriaScript("achievement_watch_him_die")
-        {
-        }
+        achievement_watch_him_die() : AchievementCriteriaScript("achievement_watch_him_die") { }
 
         bool OnCheck(Player* /*player*/, Unit* target) override
         {
@@ -660,7 +658,7 @@ class achievement_watch_him_die : public AchievementCriteriaScript
 
             for (uint8 n = 0; n < 3; ++n)
             {
-                if (Creature* watcher = ObjectAccessor::GetCreature(*target, instance->GetData64(DATA_WATCHER_GASHRA + n)))
+                if (Creature* watcher = instance->GetCreature(DATA_WATCHER_GASHRA + n))
                     if (!watcher->IsAlive())
                         return false;
             }
diff --git a/src/server/scripts/Northrend/AzjolNerub/AzjolNerub/instance_azjol_nerub.cpp b/src/server/scripts/Northrend/AzjolNerub/AzjolNerub/instance_azjol_nerub.cpp
index 1ae68f5a33e..1f474e5ddd5 100644
--- a/src/server/scripts/Northrend/AzjolNerub/AzjolNerub/instance_azjol_nerub.cpp
+++ b/src/server/scripts/Northrend/AzjolNerub/AzjolNerub/instance_azjol_nerub.cpp
@@ -28,6 +28,15 @@ DoorData const doorData[] =
     { 0,                    0,                              DOOR_TYPE_ROOM,     BOUNDARY_NONE } // END
 };
 
+ObjectData const creatureData[] =
+{
+    { NPC_KRIKTHIR,        DATA_KRIKTHIR_THE_GATEWATCHER },
+    { NPC_WATCHER_NARJIL,  DATA_WATCHER_GASHRA           },
+    { NPC_WATCHER_GASHRA,  DATA_WATCHER_SILTHIK          },
+    { NPC_WATCHER_SILTHIK, DATA_WATCHER_NARJIL           },
+    { 0,                   0                             } // END
+};
+
 class instance_azjol_nerub : public InstanceMapScript
 {
     public:
@@ -40,102 +49,8 @@ class instance_azjol_nerub : public InstanceMapScript
                 SetHeaders(DataHeader);
                 SetBossNumber(EncounterCount);
                 LoadDoorData(doorData);
-
-                KrikthirGUID        = 0;
-                HadronoxGUID        = 0;
-                AnubarakGUID        = 0;
-                WatcherGashraGUID   = 0;
-                WatcherSilthikGUID  = 0;
-                WatcherNarjilGUID   = 0;
-            }
-
-            void OnCreatureCreate(Creature* creature) override
-            {
-                switch (creature->GetEntry())
-                {
-                    case NPC_KRIKTHIR:
-                        KrikthirGUID = creature->GetGUID();
-                        break;
-                    case NPC_HADRONOX:
-                        HadronoxGUID = creature->GetGUID();
-                        break;
-                    case NPC_ANUBARAK:
-                        AnubarakGUID = creature->GetGUID();
-                        break;
-                    case NPC_WATCHER_NARJIL:
-                        WatcherNarjilGUID = creature->GetGUID();
-                        break;
-                    case NPC_WATCHER_GASHRA:
-                        WatcherGashraGUID = creature->GetGUID();
-                        break;
-                    case NPC_WATCHER_SILTHIK:
-                        WatcherSilthikGUID = creature->GetGUID();
-                        break;
-                    default:
-                        break;
-                }
-            }
-
-            void OnGameObjectCreate(GameObject* go) override
-            {
-                switch (go->GetEntry())
-                {
-                    case GO_KRIKTHIR_DOOR:
-                    case GO_ANUBARAK_DOOR_1:
-                    case GO_ANUBARAK_DOOR_2:
-                    case GO_ANUBARAK_DOOR_3:
-                        AddDoor(go, true);
-                        break;
-                    default:
-                        break;
-                }
+                LoadObjectData(creatureData, nullptr);
             }
-
-            void OnGameObjectRemove(GameObject* go) override
-            {
-                switch (go->GetEntry())
-                {
-                    case GO_KRIKTHIR_DOOR:
-                    case GO_ANUBARAK_DOOR_1:
-                    case GO_ANUBARAK_DOOR_2:
-                    case GO_ANUBARAK_DOOR_3:
-                        AddDoor(go, false);
-                        break;
-                    default:
-                        break;
-                }
-            }
-
-            uint64 GetData64(uint32 type) const override
-            {
-                switch (type)
-                {
-                    case DATA_KRIKTHIR_THE_GATEWATCHER:
-                        return KrikthirGUID;
-                    case DATA_HADRONOX:
-                        return HadronoxGUID;
-                    case DATA_ANUBARAK:
-                        return AnubarakGUID;
-                    case DATA_WATCHER_GASHRA:
-                        return WatcherGashraGUID;
-                    case DATA_WATCHER_SILTHIK:
-                        return WatcherSilthikGUID;
-                    case DATA_WATCHER_NARJIL:
-                        return WatcherNarjilGUID;
-                    default:
-                        break;
-                }
-
-                return 0;
-            }
-
-        protected:
-            uint64 KrikthirGUID;
-            uint64 HadronoxGUID;
-            uint64 AnubarakGUID;
-            uint64 WatcherGashraGUID;
-            uint64 WatcherSilthikGUID;
-            uint64 WatcherNarjilGUID;
         };
 
         InstanceScript* GetInstanceScript(InstanceMap* map) const override
diff --git a/src/server/scripts/Northrend/ChamberOfAspects/ObsidianSanctum/boss_sartharion.cpp b/src/server/scripts/Northrend/ChamberOfAspects/ObsidianSanctum/boss_sartharion.cpp
index 77ced6acef1..6afb56316b3 100644
--- a/src/server/scripts/Northrend/ChamberOfAspects/ObsidianSanctum/boss_sartharion.cpp
+++ b/src/server/scripts/Northrend/ChamberOfAspects/ObsidianSanctum/boss_sartharion.cpp
@@ -184,15 +184,15 @@ public:
             Talk(SAY_SARTHARION_DEATH);
             _JustDied();
 
-            if (Creature* tenebron = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_TENEBRON)))
+            if (Creature* tenebron = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_TENEBRON)))
                 if (tenebron->IsAlive())
                     tenebron->DisappearAndDie();
 
-            if (Creature* shadron = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SHADRON)))
+            if (Creature* shadron = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SHADRON)))
                 if (shadron->IsAlive())
                     shadron->DisappearAndDie();
 
-            if (Creature* vesperon = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_VESPERON)))
+            if (Creature* vesperon = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_VESPERON)))
                 if (vesperon->IsAlive())
                     vesperon->DisappearAndDie();
         }
@@ -217,7 +217,7 @@ public:
 
         void DrakeRespawn() // Drakes respawning system
         {
-            if (Creature* tenebron = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_TENEBRON)))
+            if (Creature* tenebron = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_TENEBRON)))
             {
                 tenebron->SetHomePosition(3239.07f, 657.235f, 86.8775f, 4.74729f);
                 if (tenebron->IsAlive())
@@ -237,7 +237,7 @@ public:
                 }
             }
 
-            if (Creature* shadron = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SHADRON)))
+            if (Creature* shadron = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SHADRON)))
             {
                 shadron->SetHomePosition(3363.06f, 525.28f, 98.362f, 4.76475f);
                 if (shadron->IsAlive())
@@ -257,7 +257,7 @@ public:
                 }
             }
 
-            if (Creature* vesperon = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_VESPERON)))
+            if (Creature* vesperon = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_VESPERON)))
             {
                 vesperon->SetHomePosition(3145.68f, 520.71f, 89.7f, 4.64258f);
                 if (vesperon->IsAlive())
@@ -286,7 +286,7 @@ public:
             //if at least one of the dragons are alive and are being called
             bool _canUseWill = false;
 
-            if (Creature* fetchTene = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_TENEBRON)))
+            if (Creature* fetchTene = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_TENEBRON)))
             {
                 if (fetchTene->IsAlive() && !fetchTene->GetVictim())
                 {
@@ -304,7 +304,7 @@ public:
                 }
             }
 
-            if (Creature* fetchShad = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SHADRON)))
+            if (Creature* fetchShad = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SHADRON)))
             {
                 if (fetchShad->IsAlive() && !fetchShad->GetVictim())
                 {
@@ -322,7 +322,7 @@ public:
                 }
             }
 
-            if (Creature* fetchVesp = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_VESPERON)))
+            if (Creature* fetchVesp = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_VESPERON)))
             {
                 if (fetchVesp && fetchVesp->IsAlive() && !fetchVesp->GetVictim())
                 {
@@ -346,7 +346,7 @@ public:
 
         void CallDragon(uint32 dataId)
         {
-            if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetData64(dataId)))
+            if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetGuidData(dataId)))
             {
                 if (temp->IsAlive() && !temp->GetVictim())
                 {
diff --git a/src/server/scripts/Northrend/ChamberOfAspects/ObsidianSanctum/instance_obsidian_sanctum.cpp b/src/server/scripts/Northrend/ChamberOfAspects/ObsidianSanctum/instance_obsidian_sanctum.cpp
index 5e4a31d6b5e..9f55ca8dc17 100644
--- a/src/server/scripts/Northrend/ChamberOfAspects/ObsidianSanctum/instance_obsidian_sanctum.cpp
+++ b/src/server/scripts/Northrend/ChamberOfAspects/ObsidianSanctum/instance_obsidian_sanctum.cpp
@@ -35,10 +35,6 @@ public:
         void Initialize() override
         {
             SetHeaders(DataHeader);
-            sartharionGUID = 0;
-            tenebronGUID   = 0;
-            shadronGUID    = 0;
-            vesperonGUID   = 0;
         }
 
         void OnCreatureCreate(Creature* creature) override
@@ -83,7 +79,7 @@ public:
             return true;
         }
 
-        uint64 GetData64(uint32 Data) const override
+        ObjectGuid GetGuidData(uint32 Data) const override
         {
             switch (Data)
             {
@@ -96,14 +92,14 @@ public:
                 case DATA_VESPERON:
                     return vesperonGUID;
             }
-            return 0;
+            return ObjectGuid::Empty;
         }
 
     protected:
-        uint64 sartharionGUID;
-        uint64 tenebronGUID;
-        uint64 shadronGUID;
-        uint64 vesperonGUID;
+        ObjectGuid sartharionGUID;
+        ObjectGuid tenebronGUID;
+        ObjectGuid shadronGUID;
+        ObjectGuid vesperonGUID;
     };
 
     InstanceScript* GetInstanceScript(InstanceMap* map) const override
diff --git a/src/server/scripts/Northrend/ChamberOfAspects/ObsidianSanctum/obsidian_sanctum.cpp b/src/server/scripts/Northrend/ChamberOfAspects/ObsidianSanctum/obsidian_sanctum.cpp
index 58d7c6141b4..f4ef869b0b4 100644
--- a/src/server/scripts/Northrend/ChamberOfAspects/ObsidianSanctum/obsidian_sanctum.cpp
+++ b/src/server/scripts/Northrend/ChamberOfAspects/ObsidianSanctum/obsidian_sanctum.cpp
@@ -359,7 +359,7 @@ struct dummy_dragonAI : public ScriptedAI
             return;
 
         // Twilight Revenge to main boss
-        if (Unit* sartharion = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_SARTHARION)))
+        if (Unit* sartharion = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_SARTHARION)))
             if (sartharion->IsAlive())
             {
                 sartharion->RemoveAurasDueToSpell(spellId);
@@ -635,12 +635,12 @@ class npc_acolyte_of_shadron : public CreatureScript
                 //if not solo fight, buff main boss, else place debuff on mini-boss. both spells TARGET_SCRIPT
                 if (instance->GetBossState(DATA_SARTHARION) == IN_PROGRESS)
                 {
-                    if (Creature* sartharion = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SARTHARION)))
+                    if (Creature* sartharion = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SARTHARION)))
                         sartharion->AddAura(SPELL_GIFT_OF_TWILIGTH_SAR, sartharion);
                 }
                 else
                 {
-                    if (Creature* shadron = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SHADRON)))
+                    if (Creature* shadron = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SHADRON)))
                         shadron->AddAura(SPELL_GIFT_OF_TWILIGTH_SHA, shadron);
                 }
 
@@ -649,7 +649,7 @@ class npc_acolyte_of_shadron : public CreatureScript
 
             void JustDied(Unit* /*killer*/) override
             {
-                if (ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SHADRON)))
+                if (ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SHADRON)))
                     instance->SetBossState(DATA_PORTAL_OPEN, NOT_STARTED);
 
                 Map* map = me->GetMap();
@@ -662,7 +662,7 @@ class npc_acolyte_of_shadron : public CreatureScript
 
                     for (Map::PlayerList::const_iterator i = PlayerList.begin(); i != PlayerList.end(); ++i)
                     {
-                        if (i->GetSource()->IsAlive() && i->GetSource()->HasAura(SPELL_TWILIGHT_SHIFT, 0) && !i->GetSource()->GetVictim())
+                        if (i->GetSource()->IsAlive() && i->GetSource()->HasAura(SPELL_TWILIGHT_SHIFT) && !i->GetSource()->GetVictim())
                         {
                             i->GetSource()->CastSpell(i->GetSource(), SPELL_TWILIGHT_SHIFT_REMOVAL_ALL, true);
                             i->GetSource()->CastSpell(i->GetSource(), SPELL_TWILIGHT_RESIDUE, true);
@@ -673,12 +673,12 @@ class npc_acolyte_of_shadron : public CreatureScript
                 }
 
                 // not solo fight, so main boss has debuff
-                if (Creature* debuffTarget = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SARTHARION)))
+                if (Creature* debuffTarget = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SARTHARION)))
                     if (debuffTarget->IsAlive() && debuffTarget->HasAura(SPELL_GIFT_OF_TWILIGTH_SAR))
                         debuffTarget->RemoveAurasDueToSpell(SPELL_GIFT_OF_TWILIGTH_SAR);
 
                 // event not in progress, then solo fight and must remove debuff mini-boss
-                if (Creature* debuffTarget = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SHADRON)))
+                if (Creature* debuffTarget = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SHADRON)))
                     if (debuffTarget->IsAlive() && debuffTarget->HasAura(SPELL_GIFT_OF_TWILIGTH_SHA))
                         debuffTarget->RemoveAurasDueToSpell(SPELL_GIFT_OF_TWILIGTH_SHA);
             }
@@ -732,7 +732,7 @@ class npc_acolyte_of_vesperon : public CreatureScript
                 me->RemoveAurasDueToSpell(SPELL_TWILIGHT_TORMENT_VESP_ACO);
 
                 // remove twilight torment on Vesperon
-                if (Creature* vesperon = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_VESPERON)))
+                if (Creature* vesperon = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_VESPERON)))
                 {
                     instance->SetBossState(DATA_PORTAL_OPEN, NOT_STARTED);
 
@@ -750,14 +750,14 @@ class npc_acolyte_of_vesperon : public CreatureScript
 
                     for (Map::PlayerList::const_iterator i = PlayerList.begin(); i != PlayerList.end(); ++i)
                     {
-                        if (i->GetSource()->IsAlive() && i->GetSource()->HasAura(SPELL_TWILIGHT_SHIFT, 0) && !i->GetSource()->GetVictim())
+                        if (i->GetSource()->IsAlive() && i->GetSource()->HasAura(SPELL_TWILIGHT_SHIFT) && !i->GetSource()->GetVictim())
                         {
                             i->GetSource()->CastSpell(i->GetSource(), SPELL_TWILIGHT_SHIFT_REMOVAL_ALL, true);
                             i->GetSource()->CastSpell(i->GetSource(), SPELL_TWILIGHT_RESIDUE, true);
                             i->GetSource()->RemoveAurasDueToSpell(SPELL_TWILIGHT_SHIFT);
                             i->GetSource()->RemoveAurasDueToSpell(SPELL_TWILIGHT_SHIFT_ENTER);
                         }
-                        if (i->GetSource()->IsAlive() && i->GetSource()->HasAura(SPELL_TWILIGHT_TORMENT_VESP, 0) && !i->GetSource()->GetVictim())
+                        if (i->GetSource()->IsAlive() && i->GetSource()->HasAura(SPELL_TWILIGHT_TORMENT_VESP) && !i->GetSource()->GetVictim())
                             i->GetSource()->RemoveAurasDueToSpell(SPELL_TWILIGHT_TORMENT_VESP);
                     }
                 }
@@ -836,7 +836,7 @@ public:
 
             if (events.ExecuteEvent() == EVENT_TWILIGHT_EGGS)
             {
-                if (ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_TENEBRON)))
+                if (ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_TENEBRON)))
                     instance->SetBossState(DATA_PORTAL_OPEN, NOT_STARTED);
 
                 SpawnWhelps();
diff --git a/src/server/scripts/Northrend/ChamberOfAspects/RubySanctum/boss_baltharus_the_warborn.cpp b/src/server/scripts/Northrend/ChamberOfAspects/RubySanctum/boss_baltharus_the_warborn.cpp
index 4e02b3ad2e8..c826b8fc9ef 100644
--- a/src/server/scripts/Northrend/ChamberOfAspects/RubySanctum/boss_baltharus_the_warborn.cpp
+++ b/src/server/scripts/Northrend/ChamberOfAspects/RubySanctum/boss_baltharus_the_warborn.cpp
@@ -132,7 +132,7 @@ class boss_baltharus_the_warborn : public CreatureScript
             {
                 _JustDied();
                 Talk(SAY_DEATH);
-                if (Creature* xerestrasza = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_XERESTRASZA)))
+                if (Creature* xerestrasza = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_XERESTRASZA)))
                     xerestrasza->AI()->DoAction(ACTION_BALTHARUS_DEATH);
             }
 
@@ -190,7 +190,7 @@ class boss_baltharus_the_warborn : public CreatureScript
                             Talk(SAY_BALTHARUS_INTRO);
                             break;
                         case EVENT_OOC_CHANNEL:
-                            if (Creature* channelTarget = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_CRYSTAL_CHANNEL_TARGET)))
+                            if (Creature* channelTarget = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_CRYSTAL_CHANNEL_TARGET)))
                                 DoCast(channelTarget, SPELL_BARRIER_CHANNEL);
                             events.ScheduleEvent(EVENT_OOC_CHANNEL, 7000, 0, PHASE_INTRO);
                             break;
@@ -258,7 +258,7 @@ class npc_baltharus_the_warborn_clone : public CreatureScript
             void JustDied(Unit* killer) override
             {
                 // This is here because DamageTaken wont trigger if the damage is deadly.
-                if (Creature* baltharus = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_BALTHARUS_THE_WARBORN)))
+                if (Creature* baltharus = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_BALTHARUS_THE_WARBORN)))
                     killer->Kill(baltharus);
             }
 
diff --git a/src/server/scripts/Northrend/ChamberOfAspects/RubySanctum/boss_general_zarithrian.cpp b/src/server/scripts/Northrend/ChamberOfAspects/RubySanctum/boss_general_zarithrian.cpp
index e41ea8de38b..f4e36b87f7d 100644
--- a/src/server/scripts/Northrend/ChamberOfAspects/RubySanctum/boss_general_zarithrian.cpp
+++ b/src/server/scripts/Northrend/ChamberOfAspects/RubySanctum/boss_general_zarithrian.cpp
@@ -163,10 +163,10 @@ class boss_general_zarithrian : public CreatureScript
                     {
                         case EVENT_SUMMON_ADDS:
                         {
-                            if (Creature* stalker1 = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_ZARITHRIAN_SPAWN_STALKER_1)))
+                            if (Creature* stalker1 = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_ZARITHRIAN_SPAWN_STALKER_1)))
                                 stalker1->CastSpell(stalker1, SPELL_SUMMON_FLAMECALLER, false);
 
-                            if (Creature* stalker2 = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_ZARITHRIAN_SPAWN_STALKER_2)))
+                            if (Creature* stalker2 = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_ZARITHRIAN_SPAWN_STALKER_2)))
                                 stalker2->CastSpell(stalker2, SPELL_SUMMON_FLAMECALLER, false);
 
                             Talk(SAY_ADDS);
@@ -236,7 +236,7 @@ class npc_onyx_flamecaller : public CreatureScript
             void IsSummonedBy(Unit* /*summoner*/) override
             {
                 // Let Zarithrian count as summoner.
-                if (Creature* zarithrian = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_GENERAL_ZARITHRIAN)))
+                if (Creature* zarithrian = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_GENERAL_ZARITHRIAN)))
                     zarithrian->AI()->JustSummoned(me);
             }
 
diff --git a/src/server/scripts/Northrend/ChamberOfAspects/RubySanctum/boss_halion.cpp b/src/server/scripts/Northrend/ChamberOfAspects/RubySanctum/boss_halion.cpp
index 565c581a727..58f62c8bf4e 100644
--- a/src/server/scripts/Northrend/ChamberOfAspects/RubySanctum/boss_halion.cpp
+++ b/src/server/scripts/Northrend/ChamberOfAspects/RubySanctum/boss_halion.cpp
@@ -266,7 +266,7 @@ struct generic_halionAI : public BossAI
         // Rough radius, it is not an exactly perfect circle
         if (me->GetDistance2d(HalionControllerSpawnPos.GetPositionX(), HalionControllerSpawnPos.GetPositionY()) > 48.5f)
         {
-            if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_HALION_CONTROLLER)))
+            if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_HALION_CONTROLLER)))
                 controller->AI()->EnterEvadeMode();
             return false;
         }
@@ -351,7 +351,7 @@ class boss_halion : public CreatureScript
                 events.ScheduleEvent(EVENT_METEOR_STRIKE, urand(20000, 25000));
                 events.ScheduleEvent(EVENT_FIERY_COMBUSTION, urand(15000, 18000));
 
-                if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_HALION_CONTROLLER)))
+                if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_HALION_CONTROLLER)))
                     controller->AI()->SetData(DATA_FIGHT_PHASE, PHASE_ONE);
             }
 
@@ -362,11 +362,11 @@ class boss_halion : public CreatureScript
                 Talk(SAY_DEATH);
                 instance->SendEncounterUnit(ENCOUNTER_FRAME_DISENGAGE, me);
 
-                if (Creature* twilightHalion = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_TWILIGHT_HALION)))
+                if (Creature* twilightHalion = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_TWILIGHT_HALION)))
                     if (twilightHalion->IsAlive())
                         twilightHalion->Kill(twilightHalion);
 
-                if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_HALION_CONTROLLER)))
+                if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_HALION_CONTROLLER)))
                     if (controller->IsAlive())
                         controller->Kill(controller);
             }
@@ -384,7 +384,7 @@ class boss_halion : public CreatureScript
                     me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
                     DoCast(me, SPELL_TWILIGHT_PHASING);
 
-                    if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_HALION_CONTROLLER)))
+                    if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_HALION_CONTROLLER)))
                         controller->AI()->SetData(DATA_FIGHT_PHASE, PHASE_TWO);
                     return;
                 }
@@ -395,7 +395,7 @@ class boss_halion : public CreatureScript
                     if (!me->IsInPhase(attacker))
                         return;
 
-                    if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_HALION_CONTROLLER)))
+                    if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_HALION_CONTROLLER)))
                         controller->AI()->SetData(DATA_MATERIAL_DAMAGE_TAKEN, damage);
                 }
             }
@@ -415,8 +415,8 @@ class boss_halion : public CreatureScript
                     case EVENT_ACTIVATE_FIREWALL:
                         // Flame ring is activated 5 seconds after starting encounter, DOOR_TYPE_ROOM is only instant.
                         for (uint8 i = DATA_FLAME_RING; i <= DATA_TWILIGHT_FLAME_RING; ++i)
-                            if (GameObject* flameRing = ObjectAccessor::GetGameObject(*me, instance->GetData64(i)))
-                                instance->HandleGameObject(instance->GetData64(DATA_FLAME_RING), false, flameRing);
+                            if (GameObject* flameRing = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(i)))
+                                instance->HandleGameObject(instance->GetGuidData(DATA_FLAME_RING), false, flameRing);
                         break;
                     case EVENT_METEOR_STRIKE:
                     {
@@ -475,7 +475,7 @@ class boss_twilight_halion : public CreatureScript
         {
             boss_twilight_halionAI(Creature* creature) : generic_halionAI(creature, DATA_TWILIGHT_HALION)
             {
-                Creature* halion = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_HALION));
+                Creature* halion = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_HALION));
                 if (!halion)
                     return;
 
@@ -515,7 +515,7 @@ class boss_twilight_halion : public CreatureScript
 
             void JustDied(Unit* killer) override
             {
-                if (Creature* halion = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_HALION)))
+                if (Creature* halion = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_HALION)))
                 {
                     // Ensure looting
                     if (me->IsDamageEnoughForLootingAndReward())
@@ -525,7 +525,7 @@ class boss_twilight_halion : public CreatureScript
                         killer->Kill(halion);
                 }
 
-                if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_HALION_CONTROLLER)))
+                if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_HALION_CONTROLLER)))
                     if (controller->IsAlive())
                         controller->Kill(controller);
 
@@ -549,7 +549,7 @@ class boss_twilight_halion : public CreatureScript
                     if (!me->IsInPhase(attacker))
                         return;
 
-                    if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_HALION_CONTROLLER)))
+                    if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_HALION_CONTROLLER)))
                         controller->AI()->SetData(DATA_TWILIGHT_DAMAGE_TAKEN, damage);
                 }
             }
@@ -559,7 +559,7 @@ class boss_twilight_halion : public CreatureScript
                 switch (spell->Id)
                 {
                     case SPELL_TWILIGHT_DIVISION:
-                        if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_HALION_CONTROLLER)))
+                        if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_HALION_CONTROLLER)))
                             controller->AI()->DoAction(ACTION_MONITOR_CORPOREALITY);
                         break;
                     default:
@@ -643,10 +643,10 @@ class npc_halion_controller : public CreatureScript
 
             void JustReachedHome() override
             {
-                if (Creature* twilightHalion = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_TWILIGHT_HALION)))
+                if (Creature* twilightHalion = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_TWILIGHT_HALION)))
                     twilightHalion->DespawnOrUnsummon();
 
-                if (Creature* halion = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_HALION)))
+                if (Creature* halion = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_HALION)))
                 {
                     halion->AI()->SetData(DATA_EVADE_METHOD, 1);
                     halion->AI()->EnterEvadeMode();
@@ -668,7 +668,7 @@ class npc_halion_controller : public CreatureScript
                     {
                         for (uint8 itr = DATA_HALION; itr <= DATA_TWILIGHT_HALION; itr++)
                         {
-                            Creature* halion = ObjectAccessor::GetCreature(*me, _instance->GetData64(itr));
+                            Creature* halion = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(itr));
                             if (!halion)
                                 continue;
 
@@ -720,14 +720,14 @@ class npc_halion_controller : public CreatureScript
                             break;
                         case EVENT_INTRO_PROGRESS_1:
                             for (uint8 i = DATA_BURNING_TREE_3; i <= DATA_BURNING_TREE_4; ++i)
-                                if (GameObject* tree = ObjectAccessor::GetGameObject(*me, _instance->GetData64(i)))
-                                    _instance->HandleGameObject(_instance->GetData64(i), true, tree);
+                                if (GameObject* tree = ObjectAccessor::GetGameObject(*me, _instance->GetGuidData(i)))
+                                    _instance->HandleGameObject(_instance->GetGuidData(i), true, tree);
                             _events.ScheduleEvent(EVENT_INTRO_PROGRESS_2, 4000);
                             break;
                         case EVENT_INTRO_PROGRESS_2:
                             for (uint8 i = DATA_BURNING_TREE_1; i <= DATA_BURNING_TREE_2; ++i)
-                                if (GameObject* tree = ObjectAccessor::GetGameObject(*me, _instance->GetData64(i)))
-                                    _instance->HandleGameObject(_instance->GetData64(i), true, tree);
+                                if (GameObject* tree = ObjectAccessor::GetGameObject(*me, _instance->GetGuidData(i)))
+                                    _instance->HandleGameObject(_instance->GetGuidData(i), true, tree);
                             _events.ScheduleEvent(EVENT_INTRO_PROGRESS_3, 4000);
                             break;
                         case EVENT_INTRO_PROGRESS_3:
@@ -736,20 +736,20 @@ class npc_halion_controller : public CreatureScript
                                 halion->AI()->Talk(SAY_INTRO);
                             break;
                         case EVENT_TWILIGHT_MENDING:
-                            if (ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_HALION))) // Just check if physical Halion is spawned
-                                if (Creature* twilightHalion = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_TWILIGHT_HALION)))
+                            if (ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_HALION))) // Just check if physical Halion is spawned
+                                if (Creature* twilightHalion = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_TWILIGHT_HALION)))
                                     twilightHalion->CastSpell((Unit*)NULL, SPELL_TWILIGHT_MENDING, true);
                             break;
                         case EVENT_TRIGGER_BERSERK:
                             for (uint8 i = DATA_HALION; i <= DATA_TWILIGHT_HALION; i++)
-                                if (Creature* halion = ObjectAccessor::GetCreature(*me, _instance->GetData64(i)))
+                                if (Creature* halion = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(i)))
                                     halion->CastSpell(halion, SPELL_BERSERK, true);
                             break;
                         case EVENT_SHADOW_PULSARS_SHOOT:
-                            if (Creature* twilightHalion = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_TWILIGHT_HALION)))
+                            if (Creature* twilightHalion = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_TWILIGHT_HALION)))
                                 twilightHalion->AI()->Talk(SAY_SPHERE_PULSE);
 
-                            if (Creature* orbCarrier = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_ORB_CARRIER)))
+                            if (Creature* orbCarrier = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_ORB_CARRIER)))
                                 orbCarrier->AI()->DoAction(ACTION_SHOOT);
 
                             _events.ScheduleEvent(EVENT_SHADOW_PULSARS_SHOOT, 29000);
@@ -860,7 +860,7 @@ class npc_halion_controller : public CreatureScript
 
                 for (uint8 itr = DATA_HALION; itr <= DATA_TWILIGHT_HALION; itr++)
                 {
-                    if (Creature* halion = ObjectAccessor::GetCreature(*me, _instance->GetData64(itr)))
+                    if (Creature* halion = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(itr)))
                     {
                         halion->CastSpell(halion, GetSpell(_materialCorporealityValue, itr == DATA_TWILIGHT_HALION), true);
 
@@ -920,7 +920,7 @@ class npc_orb_carrier : public CreatureScript
                 /// we are having two creatures involded here. This attribute is handled clientside, meaning the client
                 /// sends orientation update itself. Here, no packet is sent, and the creature does not rotate. By
                 /// forcing the carrier to always be facing the rotation focus, we ensure everything works as it should.
-                if (Creature* rotationFocus = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_ORB_ROTATION_FOCUS)))
+                if (Creature* rotationFocus = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_ORB_ROTATION_FOCUS)))
                     me->SetFacingToObject(rotationFocus); // setInFront
             }
 
@@ -997,7 +997,7 @@ class npc_meteor_strike_initial : public CreatureScript
                     return;
 
                 // Let Halion Controller count as summoner
-                if (Creature* controller = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_HALION_CONTROLLER)))
+                if (Creature* controller = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_HALION_CONTROLLER)))
                     controller->AI()->JustSummoned(me);
 
                 DoCast(me, SPELL_METEOR_STRIKE_COUNTDOWN);
@@ -1066,7 +1066,7 @@ class npc_meteor_strike : public CreatureScript
             void IsSummonedBy(Unit* /*summoner*/) override
             {
                 // Let Halion Controller count as summoner.
-                if (Creature* controller = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_HALION_CONTROLLER)))
+                if (Creature* controller = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_HALION_CONTROLLER)))
                     controller->AI()->JustSummoned(me);
             }
 
@@ -1083,7 +1083,7 @@ class npc_meteor_strike : public CreatureScript
 
                     if (Creature* flame = me->SummonCreature(NPC_METEOR_STRIKE_FLAME, pos, TEMPSUMMON_TIMED_DESPAWN, 25000))
                     {
-                        if (Creature* controller = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_HALION_CONTROLLER)))
+                        if (Creature* controller = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_HALION_CONTROLLER)))
                             controller->AI()->JustSummoned(flame);
 
                         flame->CastSpell(flame, SPELL_METEOR_STRIKE_FIRE_AURA_2, true);
@@ -1115,7 +1115,7 @@ class npc_combustion_consumption : public CreatureScript
         struct npc_combustion_consumptionAI : public ScriptedAI
         {
             npc_combustion_consumptionAI(Creature* creature) : ScriptedAI(creature),
-                   _instance(creature->GetInstanceScript()), _summonerGuid(0)
+                   _instance(creature->GetInstanceScript())
             {
                 SetCombatMovement(false);
 
@@ -1144,7 +1144,7 @@ class npc_combustion_consumption : public CreatureScript
             void IsSummonedBy(Unit* summoner) override
             {
                 // Let Halion Controller count as summoner
-                if (Creature* controller = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_HALION_CONTROLLER)))
+                if (Creature* controller = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_HALION_CONTROLLER)))
                     controller->AI()->JustSummoned(me);
 
                 _summonerGuid = summoner->GetGUID();
@@ -1170,7 +1170,7 @@ class npc_combustion_consumption : public CreatureScript
             InstanceScript* _instance;
             uint32 _explosionSpell;
             uint32 _damageSpell;
-            uint64 _summonerGuid;
+            ObjectGuid _summonerGuid;
         };
 
         CreatureAI* GetAI(Creature* creature) const override
@@ -1194,7 +1194,7 @@ class npc_living_inferno : public CreatureScript
                 me->CastSpell(me, SPELL_BLAZING_AURA, true);
 
                 if (InstanceScript* instance = me->GetInstanceScript())
-                    if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_HALION_CONTROLLER)))
+                    if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_HALION_CONTROLLER)))
                         controller->AI()->JustSummoned(me);
             }
 
@@ -1243,7 +1243,7 @@ class npc_living_ember : public CreatureScript
             void IsSummonedBy(Unit* /*summoner*/) override
             {
                 if (InstanceScript* instance = me->GetInstanceScript())
-                    if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_HALION_CONTROLLER)))
+                    if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_HALION_CONTROLLER)))
                         controller->AI()->JustSummoned(me);
             }
 
@@ -1393,7 +1393,7 @@ class spell_halion_combustion_consumption : public SpellScriptLoader
                     return;
 
                 if (GetTarget()->HasAura(_markSpell))
-                    GetTarget()->RemoveAurasDueToSpell(_markSpell, 0, 0, AURA_REMOVE_BY_EXPIRE);
+                    GetTarget()->RemoveAurasDueToSpell(_markSpell, ObjectGuid::Empty, 0, AURA_REMOVE_BY_EXPIRE);
             }
 
             void OnApply(AuraEffect const* /*aurEff*/, AuraEffectHandleModes /*mode*/)
@@ -1454,7 +1454,7 @@ class spell_halion_marks : public SpellScriptLoader
 
                 if (Unit* dispelledUnit = GetUnitOwner())
                     if (dispelledUnit->HasAura(_removeSpellId))
-                        dispelledUnit->RemoveAurasDueToSpell(_removeSpellId, 0, 0, AURA_REMOVE_BY_EXPIRE);
+                        dispelledUnit->RemoveAurasDueToSpell(_removeSpellId, ObjectGuid::Empty, 0, AURA_REMOVE_BY_EXPIRE);
             }
 
             void OnRemove(AuraEffect const* aurEff, AuraEffectHandleModes /*mode*/)
@@ -1557,7 +1557,7 @@ class spell_halion_twilight_realm_handlers : public SpellScriptLoader
                 if (!target)
                     return;
 
-                target->RemoveAurasDueToSpell(_beforeHitSpellId, 0, 0, AURA_REMOVE_BY_ENEMY_SPELL);
+                target->RemoveAurasDueToSpell(_beforeHitSpellId, ObjectGuid::Empty, 0, AURA_REMOVE_BY_ENEMY_SPELL);
                 if (InstanceScript* instance = target->GetInstanceScript())
                     instance->SendEncounterUnit(ENCOUNTER_FRAME_UNK7);
             }
@@ -1653,7 +1653,7 @@ class spell_halion_twilight_cutter : public SpellScriptLoader
                     return;
 
                 Unit* caster = GetCaster();
-                if (Unit* channelTarget = ObjectAccessor::GetUnit(*caster, caster->GetUInt64Value(UNIT_FIELD_CHANNEL_OBJECT)))
+                if (Unit* channelTarget = ObjectAccessor::GetUnit(*caster, caster->GetChannelObjectGuid()))
                 {
                     unitList.remove_if(TwilightCutterSelector(caster, channelTarget));
                     return;
diff --git a/src/server/scripts/Northrend/ChamberOfAspects/RubySanctum/instance_ruby_sanctum.cpp b/src/server/scripts/Northrend/ChamberOfAspects/RubySanctum/instance_ruby_sanctum.cpp
index be756a8ab36..98aed37a1d2 100644
--- a/src/server/scripts/Northrend/ChamberOfAspects/RubySanctum/instance_ruby_sanctum.cpp
+++ b/src/server/scripts/Northrend/ChamberOfAspects/RubySanctum/instance_ruby_sanctum.cpp
@@ -41,28 +41,12 @@ class instance_ruby_sanctum : public InstanceMapScript
                 SetHeaders(DataHeader);
                 SetBossNumber(EncounterCount);
                 LoadDoorData(doorData);
-                BaltharusTheWarbornGUID  = 0;
-                GeneralZarithrianGUID    = 0;
-                SavianaRagefireGUID      = 0;
-                HalionGUID               = 0;
-                TwilightHalionGUID       = 0;
-                OrbCarrierGUID           = 0;
-                OrbRotationFocusGUID     = 0;
-                HalionControllerGUID     = 0;
-                CrystalChannelTargetGUID = 0;
-                XerestraszaGUID          = 0;
                 BaltharusSharedHealth    = 0;
-                FlameWallsGUID           = 0;
-                FlameRingGUID            = 0;
-                TwilightFlameRingGUID    = 0;
-
-                memset(ZarithrianSpawnStalkerGUID, 0, 2 * sizeof(uint64));
-                memset(BurningTreeGUID, 0, 4 * sizeof(uint64));
             }
 
             void OnPlayerEnter(Player* /*player*/)
             {
-                if (!GetData64(DATA_HALION_CONTROLLER) && GetBossState(DATA_HALION) != DONE && GetBossState(DATA_GENERAL_ZARITHRIAN) == DONE)
+                if (!GetGuidData(DATA_HALION_CONTROLLER) && GetBossState(DATA_HALION) != DONE && GetBossState(DATA_GENERAL_ZARITHRIAN) == DONE)
                 {
                     instance->LoadGrid(HalionControllerSpawnPos.GetPositionX(), HalionControllerSpawnPos.GetPositionY());
                     if (Creature* halionController = instance->SummonCreature(NPC_HALION_CONTROLLER, HalionControllerSpawnPos))
@@ -184,7 +168,7 @@ class instance_ruby_sanctum : public InstanceMapScript
                 }
             }
 
-            uint64 GetData64(uint32 type) const override
+            ObjectGuid GetGuidData(uint32 type) const override
             {
                 switch (type)
                 {
@@ -224,7 +208,7 @@ class instance_ruby_sanctum : public InstanceMapScript
                         break;
                 }
 
-                return 0;
+                return ObjectGuid::Empty;
             }
 
             bool SetBossState(uint32 type, EncounterState state) override
@@ -305,21 +289,21 @@ class instance_ruby_sanctum : public InstanceMapScript
             }
 
         protected:
-            uint64 BaltharusTheWarbornGUID;
-            uint64 GeneralZarithrianGUID;
-            uint64 SavianaRagefireGUID;
-            uint64 HalionGUID;
-            uint64 TwilightHalionGUID;
-            uint64 HalionControllerGUID;
-            uint64 OrbCarrierGUID;
-            uint64 OrbRotationFocusGUID;
-            uint64 CrystalChannelTargetGUID;
-            uint64 XerestraszaGUID;
-            uint64 FlameWallsGUID;
-            uint64 ZarithrianSpawnStalkerGUID[2];
-            uint64 BurningTreeGUID[4];
-            uint64 FlameRingGUID;
-            uint64 TwilightFlameRingGUID;
+            ObjectGuid BaltharusTheWarbornGUID;
+            ObjectGuid GeneralZarithrianGUID;
+            ObjectGuid SavianaRagefireGUID;
+            ObjectGuid HalionGUID;
+            ObjectGuid TwilightHalionGUID;
+            ObjectGuid HalionControllerGUID;
+            ObjectGuid OrbCarrierGUID;
+            ObjectGuid OrbRotationFocusGUID;
+            ObjectGuid CrystalChannelTargetGUID;
+            ObjectGuid XerestraszaGUID;
+            ObjectGuid FlameWallsGUID;
+            ObjectGuid ZarithrianSpawnStalkerGUID[2];
+            ObjectGuid BurningTreeGUID[4];
+            ObjectGuid FlameRingGUID;
+            ObjectGuid TwilightFlameRingGUID;
 
             uint32 BaltharusSharedHealth;
         };
diff --git a/src/server/scripts/Northrend/ChamberOfAspects/RubySanctum/ruby_sanctum.cpp b/src/server/scripts/Northrend/ChamberOfAspects/RubySanctum/ruby_sanctum.cpp
index 0d2b98dbd1c..9f088a4cdfa 100644
--- a/src/server/scripts/Northrend/ChamberOfAspects/RubySanctum/ruby_sanctum.cpp
+++ b/src/server/scripts/Northrend/ChamberOfAspects/RubySanctum/ruby_sanctum.cpp
@@ -154,10 +154,10 @@ class at_baltharus_plateau : public AreaTriggerScript
             // Only trigger once
             if (InstanceScript* instance = player->GetInstanceScript())
             {
-                if (Creature* xerestrasza = ObjectAccessor::GetCreature(*player, instance->GetData64(DATA_XERESTRASZA)))
+                if (Creature* xerestrasza = ObjectAccessor::GetCreature(*player, instance->GetGuidData(DATA_XERESTRASZA)))
                     xerestrasza->AI()->DoAction(ACTION_INTRO_BALTHARUS);
 
-                if (Creature* baltharus = ObjectAccessor::GetCreature(*player, instance->GetData64(DATA_BALTHARUS_THE_WARBORN)))
+                if (Creature* baltharus = ObjectAccessor::GetCreature(*player, instance->GetGuidData(DATA_BALTHARUS_THE_WARBORN)))
                     baltharus->AI()->DoAction(ACTION_INTRO_BALTHARUS);
             }
 
diff --git a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/boss_argent_challenge.cpp b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/boss_argent_challenge.cpp
index f2d2c3e3d5b..abf57ad68d1 100644
--- a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/boss_argent_challenge.cpp
+++ b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/boss_argent_challenge.cpp
@@ -269,7 +269,6 @@ public:
             Initialize();
             instance = creature->GetInstanceScript();
 
-            MemoryGUID = 0;
             creature->SetReactState(REACT_PASSIVE);
             creature->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
             creature->RestoreFaction();
@@ -288,7 +287,7 @@ public:
         }
 
         InstanceScript* instance;
-        uint64 MemoryGUID;
+        ObjectGuid MemoryGUID;
 
         bool bHealth;
         bool bDone;
@@ -584,7 +583,7 @@ public:
                     break;
             }
 
-            Start(false, true, 0);
+            Start(false, true);
             uiWaypoint = uiType;
         }
 
diff --git a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/boss_black_knight.cpp b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/boss_black_knight.cpp
index e342b3bbfb1..60b25a649ca 100644
--- a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/boss_black_knight.cpp
+++ b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/boss_black_knight.cpp
@@ -81,7 +81,7 @@ public:
 
     struct boss_black_knightAI : public ScriptedAI
     {
-        boss_black_knightAI(Creature* creature) : ScriptedAI(creature)
+        boss_black_knightAI(Creature* creature) : ScriptedAI(creature), summons(creature)
         {
             Initialize();
             instance = creature->GetInstanceScript();
@@ -110,7 +110,7 @@ public:
 
         InstanceScript* instance;
 
-        std::list<uint64> SummonList;
+        SummonList summons;
 
         bool bEventInProgress;
         bool bEvent;
@@ -132,31 +132,22 @@ public:
 
         void Reset() override
         {
-            RemoveSummons();
+            summons.DespawnAll();
             me->SetDisplayId(me->GetNativeDisplayId());
             me->ClearUnitState(UNIT_STATE_ROOT | UNIT_STATE_STUNNED);
 
             Initialize();
         }
 
-        void RemoveSummons()
+        void JustSummoned(Creature* summon) override
         {
-            if (SummonList.empty())
-                return;
-
-            for (std::list<uint64>::const_iterator itr = SummonList.begin(); itr != SummonList.end(); ++itr)
-            {
-                if (Creature* temp = ObjectAccessor::GetCreature(*me, *itr))
-                    if (temp)
-                        temp->DisappearAndDie();
-            }
-            SummonList.clear();
+            summons.Summon(summon);
+            summon->AI()->AttackStart(me->GetVictim());
         }
 
-        void JustSummoned(Creature* summon) override
+        void SummonedCreatureDespawn(Creature* summon) override
         {
-            SummonList.push_back(summon->GetGUID());
-            summon->AI()->AttackStart(me->GetVictim());
+            summons.Despawn(summon);
         }
 
         void UpdateAI(uint32 uiDiff) override
@@ -281,7 +272,7 @@ public:
                 uiDamage = 0;
                 me->SetHealth(0);
                 me->AddUnitState(UNIT_STATE_ROOT | UNIT_STATE_STUNNED);
-                RemoveSummons();
+                summons.DespawnAll();
                 switch (uiPhase)
                 {
                     case PHASE_UNDEAD:
@@ -367,20 +358,16 @@ public:
     {
         npc_black_knight_skeletal_gryphonAI(Creature* creature) : npc_escortAI(creature)
         {
-            Start(false, true, 0, NULL);
+            Start(false, true);
         }
 
-        void WaypointReached(uint32 /*waypointId*/) override
-        {
-
-        }
+        void WaypointReached(uint32 /*waypointId*/) override { }
 
         void UpdateAI(uint32 uiDiff) override
         {
             npc_escortAI::UpdateAI(uiDiff);
 
-            if (!UpdateVictim())
-                return;
+            UpdateVictim();
         }
 
     };
diff --git a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/boss_grand_champions.cpp b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/boss_grand_champions.cpp
index a0cb4ca6d6f..b6f43371232 100644
--- a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/boss_grand_champions.cpp
+++ b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/boss_grand_champions.cpp
@@ -126,9 +126,9 @@ bool GrandChampionsOutVehicle(Creature* me)
     if (!instance)
         return false;
 
-    Creature* pGrandChampion1 = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_GRAND_CHAMPION_1));
-    Creature* pGrandChampion2 = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_GRAND_CHAMPION_2));
-    Creature* pGrandChampion3 = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_GRAND_CHAMPION_3));
+    Creature* pGrandChampion1 = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_GRAND_CHAMPION_1));
+    Creature* pGrandChampion2 = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_GRAND_CHAMPION_2));
+    Creature* pGrandChampion3 = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_GRAND_CHAMPION_3));
 
     if (pGrandChampion1 && pGrandChampion2 && pGrandChampion3)
     {
@@ -208,7 +208,7 @@ public:
             }
 
             if (uiType <= 3)
-                Start(false, true, 0, NULL);
+                Start(false, true);
         }
 
         void WaypointReached(uint32 waypointId) override
@@ -375,11 +375,11 @@ public:
             {
                 bDone = true;
 
-                if (me->GetGUID() == instance->GetData64(DATA_GRAND_CHAMPION_1))
+                if (me->GetGUID() == instance->GetGuidData(DATA_GRAND_CHAMPION_1))
                     me->SetHomePosition(739.678f, 662.541f, 412.393f, 4.49f);
-                else if (me->GetGUID() == instance->GetData64(DATA_GRAND_CHAMPION_2))
+                else if (me->GetGUID() == instance->GetGuidData(DATA_GRAND_CHAMPION_2))
                     me->SetHomePosition(746.71f, 661.02f, 411.69f, 4.6f);
-                else if (me->GetGUID() == instance->GetData64(DATA_GRAND_CHAMPION_3))
+                else if (me->GetGUID() == instance->GetGuidData(DATA_GRAND_CHAMPION_3))
                     me->SetHomePosition(754.34f, 660.70f, 412.39f, 4.79f);
 
                 EnterEvadeMode();
@@ -514,11 +514,11 @@ public:
             {
                 bDone = true;
 
-                if (me->GetGUID() == instance->GetData64(DATA_GRAND_CHAMPION_1))
+                if (me->GetGUID() == instance->GetGuidData(DATA_GRAND_CHAMPION_1))
                     me->SetHomePosition(739.678f, 662.541f, 412.393f, 4.49f);
-                else if (me->GetGUID() == instance->GetData64(DATA_GRAND_CHAMPION_2))
+                else if (me->GetGUID() == instance->GetGuidData(DATA_GRAND_CHAMPION_2))
                     me->SetHomePosition(746.71f, 661.02f, 411.69f, 4.6f);
-                else if (me->GetGUID() == instance->GetData64(DATA_GRAND_CHAMPION_3))
+                else if (me->GetGUID() == instance->GetGuidData(DATA_GRAND_CHAMPION_3))
                     me->SetHomePosition(754.34f, 660.70f, 412.39f, 4.79f);
 
                 instance->SetData(BOSS_GRAND_CHAMPIONS, IN_PROGRESS);
@@ -663,11 +663,11 @@ public:
             {
                 bDone = true;
 
-                if (me->GetGUID() == instance->GetData64(DATA_GRAND_CHAMPION_1))
+                if (me->GetGUID() == instance->GetGuidData(DATA_GRAND_CHAMPION_1))
                     me->SetHomePosition(739.678f, 662.541f, 412.393f, 4.49f);
-                else if (me->GetGUID() == instance->GetData64(DATA_GRAND_CHAMPION_2))
+                else if (me->GetGUID() == instance->GetGuidData(DATA_GRAND_CHAMPION_2))
                     me->SetHomePosition(746.71f, 661.02f, 411.69f, 4.6f);
-                else if (me->GetGUID() == instance->GetData64(DATA_GRAND_CHAMPION_3))
+                else if (me->GetGUID() == instance->GetGuidData(DATA_GRAND_CHAMPION_3))
                     me->SetHomePosition(754.34f, 660.70f, 412.39f, 4.79f);
 
                 instance->SetData(BOSS_GRAND_CHAMPIONS, IN_PROGRESS);
@@ -769,7 +769,7 @@ public:
             uiMultiShotTimer = 0;
             uiLightningArrowsTimer = 7000;
 
-            uiTargetGUID = 0;
+            uiTargetGUID.Clear();
 
             bShoot = false;
         }
@@ -783,7 +783,7 @@ public:
         uint32 uiMultiShotTimer;
         uint32 uiLightningArrowsTimer;
 
-        uint64 uiTargetGUID;
+        ObjectGuid uiTargetGUID;
 
         bool bShoot;
         bool bDone;
@@ -813,11 +813,11 @@ public:
             {
                 bDone = true;
 
-                if (me->GetGUID() == instance->GetData64(DATA_GRAND_CHAMPION_1))
+                if (me->GetGUID() == instance->GetGuidData(DATA_GRAND_CHAMPION_1))
                     me->SetHomePosition(739.678f, 662.541f, 412.393f, 4.49f);
-                else if (me->GetGUID() == instance->GetData64(DATA_GRAND_CHAMPION_2))
+                else if (me->GetGUID() == instance->GetGuidData(DATA_GRAND_CHAMPION_2))
                     me->SetHomePosition(746.71f, 661.02f, 411.69f, 4.6f);
-                else if (me->GetGUID() == instance->GetData64(DATA_GRAND_CHAMPION_3))
+                else if (me->GetGUID() == instance->GetGuidData(DATA_GRAND_CHAMPION_3))
                     me->SetHomePosition(754.34f, 660.70f, 412.39f, 4.79f);
 
                 instance->SetData(BOSS_GRAND_CHAMPIONS, IN_PROGRESS);
@@ -965,11 +965,11 @@ public:
             {
                 bDone = true;
 
-                if (me->GetGUID() == instance->GetData64(DATA_GRAND_CHAMPION_1))
+                if (me->GetGUID() == instance->GetGuidData(DATA_GRAND_CHAMPION_1))
                     me->SetHomePosition(739.678f, 662.541f, 412.393f, 4.49f);
-                else if (me->GetGUID() == instance->GetData64(DATA_GRAND_CHAMPION_2))
+                else if (me->GetGUID() == instance->GetGuidData(DATA_GRAND_CHAMPION_2))
                     me->SetHomePosition(746.71f, 661.02f, 411.69f, 4.6f);
-                else if (me->GetGUID() == instance->GetData64(DATA_GRAND_CHAMPION_3))
+                else if (me->GetGUID() == instance->GetGuidData(DATA_GRAND_CHAMPION_3))
                     me->SetHomePosition(754.34f, 660.70f, 412.39f, 4.79f);
 
                 instance->SetData(BOSS_GRAND_CHAMPIONS, IN_PROGRESS);
diff --git a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/instance_trial_of_the_champion.cpp b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/instance_trial_of_the_champion.cpp
index 021947db0f7..94bf20bc41f 100644
--- a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/instance_trial_of_the_champion.cpp
+++ b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/instance_trial_of_the_champion.cpp
@@ -49,18 +49,18 @@ public:
         uint16 uiGrandChampionsDeaths;
         uint8 uiArgentSoldierDeaths;
 
-        uint64 uiAnnouncerGUID;
-        uint64 uiMainGateGUID;
-        uint64 uiGrandChampionVehicle1GUID;
-        uint64 uiGrandChampionVehicle2GUID;
-        uint64 uiGrandChampionVehicle3GUID;
-        uint64 uiGrandChampion1GUID;
-        uint64 uiGrandChampion2GUID;
-        uint64 uiGrandChampion3GUID;
-        uint64 uiChampionLootGUID;
-        uint64 uiArgentChampionGUID;
-
-        std::list<uint64> VehicleList;
+        ObjectGuid uiAnnouncerGUID;
+        ObjectGuid uiMainGateGUID;
+        ObjectGuid uiGrandChampionVehicle1GUID;
+        ObjectGuid uiGrandChampionVehicle2GUID;
+        ObjectGuid uiGrandChampionVehicle3GUID;
+        ObjectGuid uiGrandChampion1GUID;
+        ObjectGuid uiGrandChampion2GUID;
+        ObjectGuid uiGrandChampion3GUID;
+        ObjectGuid uiChampionLootGUID;
+        ObjectGuid uiArgentChampionGUID;
+
+        GuidList VehicleList;
 
         std::string str_data;
 
@@ -73,21 +73,8 @@ public:
             uiGrandChampionsDeaths = 0;
             uiArgentSoldierDeaths = 0;
 
-            uiAnnouncerGUID        = 0;
-            uiMainGateGUID         = 0;
-            uiGrandChampionVehicle1GUID   = 0;
-            uiGrandChampionVehicle2GUID   = 0;
-            uiGrandChampionVehicle3GUID   = 0;
-            uiGrandChampion1GUID          = 0;
-            uiGrandChampion2GUID          = 0;
-            uiGrandChampion3GUID          = 0;
-            uiChampionLootGUID            = 0;
-            uiArgentChampionGUID          = 0;
-
             bDone = false;
 
-            VehicleList.clear();
-
             memset(&m_auiEncounter, 0, sizeof(m_auiEncounter));
         }
 
@@ -183,7 +170,7 @@ public:
                     m_auiEncounter[0] = uiData;
                     if (uiData == IN_PROGRESS)
                     {
-                        for (std::list<uint64>::const_iterator itr = VehicleList.begin(); itr != VehicleList.end(); ++itr)
+                        for (GuidList::const_iterator itr = VehicleList.begin(); itr != VehicleList.end(); ++itr)
                             if (Creature* summon = instance->GetCreature(*itr))
                                 summon->RemoveFromWorld();
                     }else if (uiData == DONE)
@@ -252,7 +239,7 @@ public:
             return 0;
         }
 
-        uint64 GetData64(uint32 uiData) const override
+        ObjectGuid GetGuidData(uint32 uiData) const override
         {
             switch (uiData)
             {
@@ -264,10 +251,10 @@ public:
                 case DATA_GRAND_CHAMPION_3: return uiGrandChampion3GUID;
             }
 
-            return 0;
+            return ObjectGuid::Empty;
         }
 
-        void SetData64(uint32 uiType, uint64 uiData) override
+        void SetGuidData(uint32 uiType, ObjectGuid uiData) override
         {
             switch (uiType)
             {
diff --git a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/trial_of_the_champion.cpp b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/trial_of_the_champion.cpp
index f601f06e16c..a66096ae615 100644
--- a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/trial_of_the_champion.cpp
+++ b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/trial_of_the_champion.cpp
@@ -80,14 +80,6 @@ public:
             uiPhase = 0;
             uiTimer = 0;
 
-            uiVehicle1GUID = 0;
-            uiVehicle2GUID = 0;
-            uiVehicle3GUID = 0;
-
-            Champion1List.clear();
-            Champion2List.clear();
-            Champion3List.clear();
-
             me->SetReactState(REACT_PASSIVE);
             me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
             me->SetFlag(UNIT_NPC_FLAGS, UNIT_NPC_FLAG_GOSSIP);
@@ -111,13 +103,13 @@ public:
         uint32 uiPhase;
         uint32 uiTimer;
 
-        uint64 uiVehicle1GUID;
-        uint64 uiVehicle2GUID;
-        uint64 uiVehicle3GUID;
+        ObjectGuid uiVehicle1GUID;
+        ObjectGuid uiVehicle2GUID;
+        ObjectGuid uiVehicle3GUID;
 
-        std::list<uint64> Champion1List;
-        std::list<uint64> Champion2List;
-        std::list<uint64> Champion3List;
+        GuidList Champion1List;
+        GuidList Champion2List;
+        GuidList Champion3List;
 
         void NextStep(uint32 uiTimerStep, bool bNextStep = true, uint8 uiPhaseStep = 0)
         {
@@ -138,14 +130,14 @@ public:
                     break;
                 case DATA_IN_POSITION: //movement done.
                     me->GetMotionMaster()->MovePoint(1, 735.81f, 661.92f, 412.39f);
-                    if (GameObject* go = ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_MAIN_GATE)))
+                    if (GameObject* go = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_MAIN_GATE)))
                         instance->HandleGameObject(go->GetGUID(), false);
                     NextStep(10000, false, 3);
                     break;
                 case DATA_LESSER_CHAMPIONS_DEFEATED:
                 {
                     ++uiLesserChampions;
-                    std::list<uint64> TempList;
+                    GuidList TempList;
                     if (uiLesserChampions == 3 || uiLesserChampions == 6)
                     {
                         switch (uiLesserChampions)
@@ -158,7 +150,7 @@ public:
                                 break;
                         }
 
-                        for (std::list<uint64>::const_iterator itr = TempList.begin(); itr != TempList.end(); ++itr)
+                        for (GuidList::const_iterator itr = TempList.begin(); itr != TempList.end(); ++itr)
                             if (Creature* summon = ObjectAccessor::GetCreature(*me, *itr))
                                 AggroAllPlayers(summon);
                     }else if (uiLesserChampions == 9)
@@ -230,36 +222,36 @@ public:
                     case 1:
                     {
                         uiVehicle1GUID = pBoss->GetGUID();
-                        uint64 uiGrandChampionBoss1 = 0;
+                        ObjectGuid uiGrandChampionBoss1;
                         if (Vehicle* pVehicle = pBoss->GetVehicleKit())
                             if (Unit* unit = pVehicle->GetPassenger(0))
                                 uiGrandChampionBoss1 = unit->GetGUID();
-                        instance->SetData64(DATA_GRAND_CHAMPION_VEHICLE_1, uiVehicle1GUID);
-                        instance->SetData64(DATA_GRAND_CHAMPION_1, uiGrandChampionBoss1);
+                        instance->SetGuidData(DATA_GRAND_CHAMPION_VEHICLE_1, uiVehicle1GUID);
+                        instance->SetGuidData(DATA_GRAND_CHAMPION_1, uiGrandChampionBoss1);
                         pBoss->AI()->SetData(1, 0);
                         break;
                     }
                     case 2:
                     {
                         uiVehicle2GUID = pBoss->GetGUID();
-                        uint64 uiGrandChampionBoss2 = 0;
+                        ObjectGuid uiGrandChampionBoss2;
                         if (Vehicle* pVehicle = pBoss->GetVehicleKit())
                             if (Unit* unit = pVehicle->GetPassenger(0))
                                 uiGrandChampionBoss2 = unit->GetGUID();
-                        instance->SetData64(DATA_GRAND_CHAMPION_VEHICLE_2, uiVehicle2GUID);
-                        instance->SetData64(DATA_GRAND_CHAMPION_2, uiGrandChampionBoss2);
+                        instance->SetGuidData(DATA_GRAND_CHAMPION_VEHICLE_2, uiVehicle2GUID);
+                        instance->SetGuidData(DATA_GRAND_CHAMPION_2, uiGrandChampionBoss2);
                         pBoss->AI()->SetData(2, 0);
                         break;
                     }
                     case 3:
                     {
                         uiVehicle3GUID = pBoss->GetGUID();
-                        uint64 uiGrandChampionBoss3 = 0;
+                        ObjectGuid uiGrandChampionBoss3;
                         if (Vehicle* pVehicle = pBoss->GetVehicleKit())
                             if (Unit* unit = pVehicle->GetPassenger(0))
                                 uiGrandChampionBoss3 = unit->GetGUID();
-                        instance->SetData64(DATA_GRAND_CHAMPION_VEHICLE_3, uiVehicle3GUID);
-                        instance->SetData64(DATA_GRAND_CHAMPION_3, uiGrandChampionBoss3);
+                        instance->SetGuidData(DATA_GRAND_CHAMPION_VEHICLE_3, uiVehicle3GUID);
+                        instance->SetGuidData(DATA_GRAND_CHAMPION_3, uiGrandChampionBoss3);
                         pBoss->AI()->SetData(3, 0);
                         break;
                     }
@@ -414,7 +406,7 @@ public:
                     case 3:
                         if (!Champion1List.empty())
                         {
-                            for (std::list<uint64>::const_iterator itr = Champion1List.begin(); itr != Champion1List.end(); ++itr)
+                            for (GuidList::const_iterator itr = Champion1List.begin(); itr != Champion1List.end(); ++itr)
                                 if (Creature* summon = ObjectAccessor::GetCreature(*me, *itr))
                                     AggroAllPlayers(summon);
                             NextStep(0, false);
diff --git a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/boss_anubarak_trial.cpp b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/boss_anubarak_trial.cpp
index 2f29e03a2f2..d5bd2bcae7e 100644
--- a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/boss_anubarak_trial.cpp
+++ b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/boss_anubarak_trial.cpp
@@ -196,7 +196,7 @@ class boss_anubarak_trial : public CreatureScript
                 std::list<Creature*> FrostSphereList;
                 me->GetCreatureListWithEntryInGrid(FrostSphereList, NPC_FROST_SPHERE, 150.0f);
                 if (!FrostSphereList.empty())
-                    for (std::list<Creature*>::iterator itr = FrostSphereList.begin(); itr != FrostSphereList.end(); itr++)
+                    for (std::list<Creature*>::iterator itr = FrostSphereList.begin(); itr != FrostSphereList.end(); ++itr)
                         (*itr)->DespawnOrUnsummon();
 
                 _burrowGUID.clear();
@@ -243,7 +243,7 @@ class boss_anubarak_trial : public CreatureScript
                 me->GetCreatureListWithEntryInGrid(AddList, NPC_FROST_SPHERE, 150.0f);
                 me->GetCreatureListWithEntryInGrid(AddList, NPC_BURROWER, 150.0f);
                 if (!AddList.empty())
-                    for (std::list<Creature*>::iterator itr = AddList.begin(); itr != AddList.end(); itr++)
+                    for (std::list<Creature*>::iterator itr = AddList.begin(); itr != AddList.end(); ++itr)
                         (*itr)->DespawnOrUnsummon();
             }
 
@@ -346,7 +346,7 @@ class boss_anubarak_trial : public CreatureScript
                             /* WORKAROUND
                             * - The correct implementation is more likely the comment below but it needs spell knowledge
                             */
-                            std::list<uint64>::iterator i = _burrowGUID.begin();
+                            GuidList::iterator i = _burrowGUID.begin();
                             uint32 at = urand(0, _burrowGUID.size()-1);
                             for (uint32 k = 0; k < at; k++)
                                 ++i;
@@ -421,8 +421,8 @@ class boss_anubarak_trial : public CreatureScript
             }
 
             private:
-                std::list<uint64> _burrowGUID;
-                uint64 _sphereGUID[6];
+                GuidList _burrowGUID;
+                ObjectGuid _sphereGUID[6];
                 bool _intro;
                 bool _reachedPhase3;
         };
@@ -458,7 +458,7 @@ class npc_swarm_scarab : public CreatureScript
                 DoCast(me, SPELL_ACID_MANDIBLE);
                 me->SetInCombatWithZone();
                 if (me->IsInCombat())
-                    if (Creature* Anubarak = ObjectAccessor::GetCreature(*me, _instance->GetData64(NPC_ANUBARAK)))
+                    if (Creature* Anubarak = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(NPC_ANUBARAK)))
                         Anubarak->AI()->JustSummoned(me);
             }
 
@@ -538,7 +538,7 @@ class npc_nerubian_burrower : public CreatureScript
                 DoCast(me, SPELL_AWAKENED);
                 me->SetInCombatWithZone();
                 if (me->IsInCombat())
-                    if (Creature* Anubarak = ObjectAccessor::GetCreature(*me, _instance->GetData64(NPC_ANUBARAK)))
+                    if (Creature* Anubarak = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(NPC_ANUBARAK)))
                         Anubarak->AI()->JustSummoned(me);
             }
 
diff --git a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/boss_faction_champions.cpp b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/boss_faction_champions.cpp
index 3d59f24b6dd..562e67f4b6a 100644
--- a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/boss_faction_champions.cpp
+++ b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/boss_faction_champions.cpp
@@ -483,7 +483,7 @@ class boss_toc_champion_controller : public CreatureScript
                         SummonChampions((Team)uiData);
                         break;
                     case 1:
-                        for (std::list<uint64>::iterator i = _summons.begin(); i != _summons.end(); ++i)
+                        for (SummonList::iterator i = _summons.begin(); i != _summons.end(); ++i)
                         {
                             if (Creature* temp = ObjectAccessor::GetCreature(*me, *i))
                             {
@@ -565,7 +565,7 @@ struct boss_faction_championsAI : public BossAI
 
     void JustReachedHome() override
     {
-        if (Creature* pChampionController = ObjectAccessor::GetCreature((*me), instance->GetData64(NPC_CHAMPIONS_CONTROLLER)))
+        if (Creature* pChampionController = ObjectAccessor::GetCreature((*me), instance->GetGuidData(NPC_CHAMPIONS_CONTROLLER)))
             pChampionController->AI()->SetData(2, FAIL);
         me->DespawnOrUnsummon();
     }
@@ -615,7 +615,7 @@ struct boss_faction_championsAI : public BossAI
     void JustDied(Unit* /*killer*/) override
     {
         if (_aiType != AI_PET)
-            if (Creature* pChampionController = ObjectAccessor::GetCreature((*me), instance->GetData64(NPC_CHAMPIONS_CONTROLLER)))
+            if (Creature* pChampionController = ObjectAccessor::GetCreature((*me), instance->GetGuidData(NPC_CHAMPIONS_CONTROLLER)))
                 pChampionController->AI()->SetData(2, DONE);
     }
 
@@ -623,7 +623,7 @@ struct boss_faction_championsAI : public BossAI
     {
         DoCast(me, SPELL_ANTI_AOE, true);
         _EnterCombat();
-        if (Creature* pChampionController = ObjectAccessor::GetCreature((*me), instance->GetData64(NPC_CHAMPIONS_CONTROLLER)))
+        if (Creature* pChampionController = ObjectAccessor::GetCreature((*me), instance->GetGuidData(NPC_CHAMPIONS_CONTROLLER)))
             pChampionController->AI()->SetData(2, IN_PROGRESS);
     }
 
@@ -640,11 +640,11 @@ struct boss_faction_championsAI : public BossAI
 
             if (TeamInInstance == ALLIANCE)
             {
-                if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetData64(NPC_VARIAN)))
+                if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetGuidData(NPC_VARIAN)))
                     temp->AI()->Talk(SAY_KILL_PLAYER);
             }
             else
-                if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetData64(NPC_GARROSH)))
+                if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetGuidData(NPC_GARROSH)))
                     temp->AI()->Talk(SAY_KILL_PLAYER);
 
 
diff --git a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/boss_northrend_beasts.cpp b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/boss_northrend_beasts.cpp
index f4112b7a43b..771151632ff 100644
--- a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/boss_northrend_beasts.cpp
+++ b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/boss_northrend_beasts.cpp
@@ -171,7 +171,7 @@ class boss_gormok : public CreatureScript
 
             void EnterEvadeMode() override
             {
-                instance->DoUseDoorOrButton(instance->GetData64(GO_MAIN_GATE_DOOR));
+                instance->DoUseDoorOrButton(instance->GetGuidData(GO_MAIN_GATE_DOOR));
                 ScriptedAI::EnterEvadeMode();
             }
 
@@ -183,7 +183,7 @@ class boss_gormok : public CreatureScript
                 switch (pointId)
                 {
                     case 0:
-                        instance->DoUseDoorOrButton(instance->GetData64(GO_MAIN_GATE_DOOR));
+                        instance->DoUseDoorOrButton(instance->GetGuidData(GO_MAIN_GATE_DOOR));
                         me->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE | UNIT_FLAG_NOT_SELECTABLE);
                         me->SetReactState(REACT_AGGRESSIVE);
                         me->SetInCombatWithZone();
@@ -200,7 +200,7 @@ class boss_gormok : public CreatureScript
 
             void JustReachedHome() override
             {
-                instance->DoUseDoorOrButton(instance->GetData64(GO_MAIN_GATE_DOOR));
+                instance->DoUseDoorOrButton(instance->GetGuidData(GO_MAIN_GATE_DOOR));
                 instance->SetData(TYPE_NORTHREND_BEASTS, FAIL);
 
                 me->DespawnOrUnsummon();
@@ -294,7 +294,6 @@ class npc_snobold_vassal : public CreatureScript
         {
             npc_snobold_vassalAI(Creature* creature) : ScriptedAI(creature)
             {
-                _targetGUID = 0;
                 _targetDied = false;
                 _instance = creature->GetInstanceScript();
                 _instance->SetData(DATA_SNOBOLD_COUNT, INCREASE);
@@ -305,7 +304,7 @@ class npc_snobold_vassal : public CreatureScript
                 _events.ScheduleEvent(EVENT_BATTER, 5*IN_MILLISECONDS);
                 _events.ScheduleEvent(EVENT_HEAD_CRACK, 25*IN_MILLISECONDS);
 
-                _targetGUID = 0;
+                _targetGUID.Clear();
                 _targetDied = false;
 
                 //Workaround for Snobold
@@ -378,7 +377,7 @@ class npc_snobold_vassal : public CreatureScript
                 {
                     if (!target->IsAlive())
                     {
-                        Unit* gormok = ObjectAccessor::GetCreature(*me, _instance->GetData64(NPC_GORMOK));
+                        Unit* gormok = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(NPC_GORMOK));
                         if (gormok && gormok->IsAlive())
                         {
                             SetCombatMovement(false);
@@ -442,7 +441,7 @@ class npc_snobold_vassal : public CreatureScript
             private:
                 EventMap _events;
                 InstanceScript* _instance;
-                uint64 _targetGUID;
+                ObjectGuid _targetGUID;
                 bool   _targetDied;
         };
 
@@ -520,7 +519,7 @@ struct boss_jormungarAI : public BossAI
 
     void JustDied(Unit* /*killer*/) override
     {
-        if (Creature* otherWorm = ObjectAccessor::GetCreature(*me, instance->GetData64(OtherWormEntry)))
+        if (Creature* otherWorm = ObjectAccessor::GetCreature(*me, instance->GetGuidData(OtherWormEntry)))
         {
             if (!otherWorm->IsAlive())
             {
@@ -753,7 +752,7 @@ class boss_dreadscale : public CreatureScript
                 switch (pointId)
                 {
                     case 0:
-                        instance->DoUseDoorOrButton(instance->GetData64(GO_MAIN_GATE_DOOR));
+                        instance->DoUseDoorOrButton(instance->GetGuidData(GO_MAIN_GATE_DOOR));
                         me->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE | UNIT_FLAG_NOT_SELECTABLE);
                         me->SetReactState(REACT_AGGRESSIVE);
                         me->SetInCombatWithZone();
@@ -765,13 +764,13 @@ class boss_dreadscale : public CreatureScript
 
             void EnterEvadeMode() override
             {
-                instance->DoUseDoorOrButton(instance->GetData64(GO_MAIN_GATE_DOOR));
+                instance->DoUseDoorOrButton(instance->GetGuidData(GO_MAIN_GATE_DOOR));
                 boss_jormungarAI::EnterEvadeMode();
             }
 
             void JustReachedHome() override
             {
-                instance->DoUseDoorOrButton(instance->GetData64(GO_MAIN_GATE_DOOR));
+                instance->DoUseDoorOrButton(instance->GetGuidData(GO_MAIN_GATE_DOOR));
 
                 boss_jormungarAI::JustReachedHome();
             }
@@ -877,7 +876,7 @@ class boss_icehowl : public CreatureScript
                 _movementStarted = false;
                 _movementFinish = false;
                 _trampleCast = false;
-                _trampleTargetGUID = 0;
+                _trampleTargetGUID.Clear();
                 _trampleTargetX = 0;
                 _trampleTargetY = 0;
                 _trampleTargetZ = 0;
@@ -926,7 +925,7 @@ class boss_icehowl : public CreatureScript
                         _movementFinish = true;
                         break;
                     case 2:
-                        instance->DoUseDoorOrButton(instance->GetData64(GO_MAIN_GATE_DOOR));
+                        instance->DoUseDoorOrButton(instance->GetGuidData(GO_MAIN_GATE_DOOR));
                         me->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE | UNIT_FLAG_NOT_SELECTABLE);
                         me->SetReactState(REACT_AGGRESSIVE);
                         me->SetInCombatWithZone();
@@ -938,13 +937,13 @@ class boss_icehowl : public CreatureScript
 
             void EnterEvadeMode() override
             {
-                instance->DoUseDoorOrButton(instance->GetData64(GO_MAIN_GATE_DOOR));
+                instance->DoUseDoorOrButton(instance->GetGuidData(GO_MAIN_GATE_DOOR));
                 ScriptedAI::EnterEvadeMode();
             }
 
             void JustReachedHome() override
             {
-                instance->DoUseDoorOrButton(instance->GetData64(GO_MAIN_GATE_DOOR));
+                instance->DoUseDoorOrButton(instance->GetGuidData(GO_MAIN_GATE_DOOR));
                 instance->SetData(TYPE_NORTHREND_BEASTS, FAIL);
                 me->DespawnOrUnsummon();
             }
@@ -1077,7 +1076,7 @@ class boss_icehowl : public CreatureScript
                         if (Player* target = ObjectAccessor::GetPlayer(*me, _trampleTargetGUID))
                             Talk(EMOTE_TRAMPLE_START, target);
                         me->GetMotionMaster()->MoveCharge(_trampleTargetX, _trampleTargetY, _trampleTargetZ, 42, 1);
-                        me->SetTarget(0);
+                        me->SetTarget(ObjectGuid::Empty);
                         _stage = 5;
                         break;
                     case 5:
@@ -1134,7 +1133,7 @@ class boss_icehowl : public CreatureScript
 
             private:
                 float  _trampleTargetX, _trampleTargetY, _trampleTargetZ;
-                uint64 _trampleTargetGUID;
+                ObjectGuid _trampleTargetGUID;
                 bool   _movementStarted;
                 bool   _movementFinish;
                 bool   _trampleCast;
diff --git a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/boss_twin_valkyr.cpp b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/boss_twin_valkyr.cpp
index 1118c1ec27b..a645f3ca666 100644
--- a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/boss_twin_valkyr.cpp
+++ b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/boss_twin_valkyr.cpp
@@ -267,7 +267,7 @@ struct boss_twin_baseAI : public BossAI
     // Called when sister pointer needed
     Creature* GetSister()
     {
-        return ObjectAccessor::GetCreature((*me), instance->GetData64(SisterNpcId));
+        return ObjectAccessor::GetCreature((*me), instance->GetGuidData(SisterNpcId));
     }
 
     void EnterCombat(Unit* /*who*/) override
@@ -447,13 +447,13 @@ class boss_fjola : public CreatureScript
 
             void EnterEvadeMode() override
             {
-                instance->DoUseDoorOrButton(instance->GetData64(GO_MAIN_GATE_DOOR));
+                instance->DoUseDoorOrButton(instance->GetGuidData(GO_MAIN_GATE_DOOR));
                 boss_twin_baseAI::EnterEvadeMode();
             }
 
             void JustReachedHome() override
             {
-                instance->DoUseDoorOrButton(instance->GetData64(GO_MAIN_GATE_DOOR));
+                instance->DoUseDoorOrButton(instance->GetGuidData(GO_MAIN_GATE_DOOR));
 
                 boss_twin_baseAI::JustReachedHome();
             }
@@ -864,7 +864,7 @@ class spell_power_of_the_twins : public SpellScriptLoader
             {
                 if (InstanceScript* instance = GetCaster()->GetInstanceScript())
                 {
-                    if (Creature* Valk = ObjectAccessor::GetCreature(*GetCaster(), instance->GetData64(GetCaster()->GetEntry())))
+                    if (Creature* Valk = ObjectAccessor::GetCreature(*GetCaster(), instance->GetGuidData(GetCaster()->GetEntry())))
                         ENSURE_AI(boss_twin_baseAI, Valk->AI())->EnableDualWield(true);
                 }
             }
@@ -873,7 +873,7 @@ class spell_power_of_the_twins : public SpellScriptLoader
             {
                 if (InstanceScript* instance = GetCaster()->GetInstanceScript())
                 {
-                    if (Creature* Valk = ObjectAccessor::GetCreature(*GetCaster(), instance->GetData64(GetCaster()->GetEntry())))
+                    if (Creature* Valk = ObjectAccessor::GetCreature(*GetCaster(), instance->GetGuidData(GetCaster()->GetEntry())))
                         ENSURE_AI(boss_twin_baseAI, Valk->AI())->EnableDualWield(false);
                 }
             }
diff --git a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/instance_trial_of_the_crusader.cpp b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/instance_trial_of_the_crusader.cpp
index a8d3f223664..30d831da30c 100644
--- a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/instance_trial_of_the_crusader.cpp
+++ b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/instance_trial_of_the_crusader.cpp
@@ -45,29 +45,6 @@ class instance_trial_of_the_crusader : public InstanceMapScript
                 MistressOfPainCount = 0;
                 TributeToImmortalityEligible = true;
                 NeedSave = false;
-
-                TirionFordringGUID = 0;
-                BarrentGUID = 0;
-                TirionGUID = 0;
-                FizzlebangGUID = 0;
-                GarroshGUID = 0;
-                VarianGUID = 0;
-                GormokGUID = 0;
-                AcidmawGUID = 0;
-                DreadscaleGUID = 0;
-                IcehowlGUID = 0;
-                JaraxxusGUID = 0;
-                ChampionsControllerGUID = 0;
-                DarkbaneGUID = 0;
-                LightbaneGUID = 0;
-                AnubarakGUID = 0;
-
-                TributeChestGUID = 0;
-                MainGateDoorGUID = 0;
-                EastPortcullisGUID = 0;
-                WebDoorGUID = 0;
-                CrusadersCacheGUID = 0;
-                FloorGUID = 0;
             }
 
             bool IsEncounterInProgress() const override
@@ -96,15 +73,15 @@ class instance_trial_of_the_crusader : public InstanceMapScript
                 // make sure Anub'arak isnt missing and floor is destroyed after a crash
                 if (GetBossState(BOSS_LICH_KING) == DONE && TrialCounter && GetBossState(BOSS_ANUBARAK) != DONE)
                 {
-                    if (Creature* anubArak = ObjectAccessor::GetCreature(*player, GetData64(NPC_ANUBARAK)))
+                    if (Creature* anubArak = ObjectAccessor::GetCreature(*player, GetGuidData(NPC_ANUBARAK)))
                         anubArak = player->SummonCreature(NPC_ANUBARAK, AnubarakLoc[0].GetPositionX(), AnubarakLoc[0].GetPositionY(), AnubarakLoc[0].GetPositionZ(), 3, TEMPSUMMON_CORPSE_TIMED_DESPAWN, DESPAWN_TIME);
 
-                    if (GameObject* floor = ObjectAccessor::GetGameObject(*player, GetData64(GO_ARGENT_COLISEUM_FLOOR)))
+                    if (GameObject* floor = ObjectAccessor::GetGameObject(*player, GetGuidData(GO_ARGENT_COLISEUM_FLOOR)))
                         floor->SetDestructibleState(GO_DESTRUCTIBLE_DAMAGED);
                 }
             }
 
-            void OpenDoor(uint64 guid)
+            void OpenDoor(ObjectGuid guid)
             {
                 if (!guid)
                     return;
@@ -113,7 +90,7 @@ class instance_trial_of_the_crusader : public InstanceMapScript
                     go->SetGoState(GO_STATE_ACTIVE_ALTERNATIVE);
             }
 
-            void CloseDoor(uint64 guid)
+            void CloseDoor(ObjectGuid guid)
             {
                 if (!guid)
                     return;
@@ -356,13 +333,13 @@ class instance_trial_of_the_crusader : public InstanceMapScript
 
                 if (IsEncounterInProgress())
                 {
-                    CloseDoor(GetData64(GO_EAST_PORTCULLIS));
-                    CloseDoor(GetData64(GO_WEB_DOOR));
+                    CloseDoor(GetGuidData(GO_EAST_PORTCULLIS));
+                    CloseDoor(GetGuidData(GO_WEB_DOOR));
                 }
                 else
                 {
-                    OpenDoor(GetData64(GO_EAST_PORTCULLIS));
-                    OpenDoor(GetData64(GO_WEB_DOOR));
+                    OpenDoor(GetGuidData(GO_EAST_PORTCULLIS));
+                    OpenDoor(GetGuidData(GO_WEB_DOOR));
                 }
 
                 if (type < MAX_ENCOUNTERS)
@@ -382,10 +359,10 @@ class instance_trial_of_the_crusader : public InstanceMapScript
                             // if theres no more attemps allowed
                             if (!TrialCounter)
                             {
-                                if (Unit* announcer = instance->GetCreature(GetData64(NPC_BARRENT)))
+                                if (Unit* announcer = instance->GetCreature(GetGuidData(NPC_BARRENT)))
                                     announcer->ToCreature()->DespawnOrUnsummon();
 
-                                if (Creature* anubArak = instance->GetCreature(GetData64(NPC_ANUBARAK)))
+                                if (Creature* anubArak = instance->GetCreature(GetGuidData(NPC_ANUBARAK)))
                                     anubArak->DespawnOrUnsummon();
                             }
                         }
@@ -396,7 +373,7 @@ class instance_trial_of_the_crusader : public InstanceMapScript
 
                     if (state == DONE || NeedSave)
                     {
-                        if (Unit* announcer = instance->GetCreature(GetData64(NPC_BARRENT)))
+                        if (Unit* announcer = instance->GetCreature(GetGuidData(NPC_BARRENT)))
                             announcer->SetFlag(UNIT_NPC_FLAGS, UNIT_NPC_FLAG_GOSSIP);
                         Save();
                     }
@@ -473,7 +450,7 @@ class instance_trial_of_the_crusader : public InstanceMapScript
                 }
             }
 
-            uint64 GetData64(uint32 type) const override
+            ObjectGuid GetGuidData(uint32 type) const override
             {
                 switch (type)
                 {
@@ -521,7 +498,7 @@ class instance_trial_of_the_crusader : public InstanceMapScript
                         break;
                 }
 
-                return 0;
+                return ObjectGuid::Empty;
             }
 
             uint32 GetData(uint32 type) const override
@@ -743,29 +720,29 @@ class instance_trial_of_the_crusader : public InstanceMapScript
                 bool   NeedSave;
                 std::string SaveDataBuffer;
 
-                uint64 BarrentGUID;
-                uint64 TirionGUID;
-                uint64 TirionFordringGUID;
-                uint64 FizzlebangGUID;
-                uint64 GarroshGUID;
-                uint64 VarianGUID;
-
-                uint64 GormokGUID;
-                uint64 AcidmawGUID;
-                uint64 DreadscaleGUID;
-                uint64 IcehowlGUID;
-                uint64 JaraxxusGUID;
-                uint64 ChampionsControllerGUID;
-                uint64 DarkbaneGUID;
-                uint64 LightbaneGUID;
-                uint64 AnubarakGUID;
-
-                uint64 CrusadersCacheGUID;
-                uint64 FloorGUID;
-                uint64 TributeChestGUID;
-                uint64 MainGateDoorGUID;
-                uint64 EastPortcullisGUID;
-                uint64 WebDoorGUID;
+                ObjectGuid BarrentGUID;
+                ObjectGuid TirionGUID;
+                ObjectGuid TirionFordringGUID;
+                ObjectGuid FizzlebangGUID;
+                ObjectGuid GarroshGUID;
+                ObjectGuid VarianGUID;
+
+                ObjectGuid GormokGUID;
+                ObjectGuid AcidmawGUID;
+                ObjectGuid DreadscaleGUID;
+                ObjectGuid IcehowlGUID;
+                ObjectGuid JaraxxusGUID;
+                ObjectGuid ChampionsControllerGUID;
+                ObjectGuid DarkbaneGUID;
+                ObjectGuid LightbaneGUID;
+                ObjectGuid AnubarakGUID;
+
+                ObjectGuid CrusadersCacheGUID;
+                ObjectGuid FloorGUID;
+                ObjectGuid TributeChestGUID;
+                ObjectGuid MainGateDoorGUID;
+                ObjectGuid EastPortcullisGUID;
+                ObjectGuid WebDoorGUID;
 
                 // Achievement stuff
                 uint32 NotOneButTwoJormungarsTimer;
diff --git a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/trial_of_the_crusader.cpp b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/trial_of_the_crusader.cpp
index b068b458073..d8ec322c57c 100644
--- a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/trial_of_the_crusader.cpp
+++ b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheCrusader/trial_of_the_crusader.cpp
@@ -173,7 +173,7 @@ class npc_announcer_toc10 : public CreatureScript
             else if (instance->GetBossState(BOSS_JARAXXUS) != DONE)
             {
                 // if Jaraxxus is spawned, but the raid wiped
-                if (Creature* jaraxxus = ObjectAccessor::GetCreature(*player, instance->GetData64(NPC_JARAXXUS)))
+                if (Creature* jaraxxus = ObjectAccessor::GetCreature(*player, instance->GetGuidData(NPC_JARAXXUS)))
                 {
                     jaraxxus->RemoveAurasDueToSpell(SPELL_JARAXXUS_CHAINS);
                     jaraxxus->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
@@ -201,13 +201,13 @@ class npc_announcer_toc10 : public CreatureScript
             }
             else if (instance->GetBossState(BOSS_LICH_KING) != DONE)
             {
-                if (GameObject* floor = ObjectAccessor::GetGameObject(*player, instance->GetData64(GO_ARGENT_COLISEUM_FLOOR)))
+                if (GameObject* floor = ObjectAccessor::GetGameObject(*player, instance->GetGuidData(GO_ARGENT_COLISEUM_FLOOR)))
                     floor->SetDestructibleState(GO_DESTRUCTIBLE_DAMAGED);
 
                 creature->CastSpell(creature, SPELL_CORPSE_TELEPORT, false);
                 creature->CastSpell(creature, SPELL_DESTROY_FLOOR_KNOCKUP, false);
 
-                Creature* anubArak = ObjectAccessor::GetCreature(*creature, instance->GetData64(NPC_ANUBARAK));
+                Creature* anubArak = ObjectAccessor::GetCreature(*creature, instance->GetGuidData(NPC_ANUBARAK));
                 if (!anubArak || !anubArak->IsAlive())
                     anubArak = creature->SummonCreature(NPC_ANUBARAK, AnubarakLoc[0].GetPositionX(), AnubarakLoc[0].GetPositionY(), AnubarakLoc[0].GetPositionZ(), 3, TEMPSUMMON_CORPSE_TIMED_DESPAWN, DESPAWN_TIME);
 
@@ -318,7 +318,7 @@ class boss_lich_king_toc : public CreatureScript
                             break;
                         case 5080:
                         {
-                            if (GameObject* go = ObjectAccessor::GetGameObject(*me, _instance->GetData64(GO_ARGENT_COLISEUM_FLOOR)))
+                            if (GameObject* go = ObjectAccessor::GetGameObject(*me, _instance->GetGuidData(GO_ARGENT_COLISEUM_FLOOR)))
                             {
                                 go->SetDisplayId(DISPLAYID_DESTROYED_FLOOR);
                                 go->SetFlag(GAMEOBJECT_FLAGS, GO_FLAG_DAMAGED | GO_FLAG_NODESPAWN);
@@ -329,7 +329,7 @@ class boss_lich_king_toc : public CreatureScript
                             me->CastSpell(me, SPELL_DESTROY_FLOOR_KNOCKUP, false);
 
                             _instance->SetBossState(BOSS_LICH_KING, DONE);
-                            Creature* temp = ObjectAccessor::GetCreature(*me, _instance->GetData64(NPC_ANUBARAK));
+                            Creature* temp = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(NPC_ANUBARAK));
                             if (!temp || !temp->IsAlive())
                                 temp = me->SummonCreature(NPC_ANUBARAK, AnubarakLoc[0].GetPositionX(), AnubarakLoc[0].GetPositionY(), AnubarakLoc[0].GetPositionZ(), 3, TEMPSUMMON_CORPSE_TIMED_DESPAWN, DESPAWN_TIME);
 
@@ -368,21 +368,14 @@ class npc_fizzlebang_toc : public CreatureScript
         {
             npc_fizzlebang_tocAI(Creature* creature) : ScriptedAI(creature), _summons(me)
             {
-                Initialize();
                 _instance = me->GetInstanceScript();
-                _triggerGUID = 0;
-            }
-
-            void Initialize()
-            {
-                _portalGUID = 0;
             }
 
             void JustDied(Unit* killer) override
             {
                 Talk(SAY_STAGE_1_06, killer);
                 _instance->SetData(TYPE_EVENT, 1180);
-                if (Creature* temp = ObjectAccessor::GetCreature(*me, _instance->GetData64(NPC_JARAXXUS)))
+                if (Creature* temp = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(NPC_JARAXXUS)))
                 {
                     temp->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
                     temp->SetReactState(REACT_AGGRESSIVE);
@@ -392,8 +385,8 @@ class npc_fizzlebang_toc : public CreatureScript
 
             void Reset() override
             {
+                _portalGUID.Clear();
                 me->SetWalk(true);
-                Initialize();
                 me->GetMotionMaster()->MovePoint(1, ToCCommonLoc[10].GetPositionX(), ToCCommonLoc[10].GetPositionY()-60, ToCCommonLoc[10].GetPositionZ());
             }
 
@@ -406,7 +399,7 @@ class npc_fizzlebang_toc : public CreatureScript
                 {
                     case 1:
                         me->SetWalk(false);
-                        _instance->DoUseDoorOrButton(_instance->GetData64(GO_MAIN_GATE_DOOR));
+                        _instance->DoUseDoorOrButton(_instance->GetGuidData(GO_MAIN_GATE_DOOR));
                         _instance->SetData(TYPE_EVENT, 1120);
                         _instance->SetData(TYPE_EVENT_TIMER, 1*IN_MILLISECONDS);
                         break;
@@ -489,7 +482,7 @@ class npc_fizzlebang_toc : public CreatureScript
                             _updateTimer = 5*IN_MILLISECONDS;
                             break;
                         case 1142:
-                            if (Creature* temp = ObjectAccessor::GetCreature(*me, _instance->GetData64(NPC_JARAXXUS)))
+                            if (Creature* temp = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(NPC_JARAXXUS)))
                                 temp->SetTarget(me->GetGUID());
                             if (Creature* pTrigger = ObjectAccessor::GetCreature(*me, _triggerGUID))
                                 pTrigger->DespawnOrUnsummon();
@@ -499,13 +492,13 @@ class npc_fizzlebang_toc : public CreatureScript
                             _updateTimer = 10*IN_MILLISECONDS;
                             break;
                         case 1144:
-                            if (Creature* temp = ObjectAccessor::GetCreature(*me, _instance->GetData64(NPC_JARAXXUS)))
+                            if (Creature* temp = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(NPC_JARAXXUS)))
                                 temp->AI()->Talk(SAY_STAGE_1_05);
                             _instance->SetData(TYPE_EVENT, 1150);
                             _updateTimer = 5*IN_MILLISECONDS;
                             break;
                         case 1150:
-                            if (Creature* temp = ObjectAccessor::GetCreature(*me, _instance->GetData64(NPC_JARAXXUS)))
+                            if (Creature* temp = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(NPC_JARAXXUS)))
                             {
                                 //1-shot Fizzlebang
                                 temp->CastSpell(me, 67888, false);
@@ -526,8 +519,8 @@ class npc_fizzlebang_toc : public CreatureScript
             private:
                 InstanceScript* _instance;
                 SummonList _summons;
-                uint64 _portalGUID;
-                uint64 _triggerGUID;
+                ObjectGuid _portalGUID;
+                ObjectGuid _triggerGUID;
         };
 
         CreatureAI* GetAI(Creature* creature) const override
@@ -581,7 +574,7 @@ class npc_tirion_toc : public CreatureScript
                             me->SetUInt32Value(UNIT_NPC_EMOTESTATE, EMOTE_STATE_NONE);
                             if (_instance->GetBossState(BOSS_BEASTS) != DONE)
                             {
-                                _instance->DoUseDoorOrButton(_instance->GetData64(GO_MAIN_GATE_DOOR));
+                                _instance->DoUseDoorOrButton(_instance->GetGuidData(GO_MAIN_GATE_DOOR));
 
                                 if (Creature* temp = me->SummonCreature(NPC_GORMOK, ToCSpawnLoc[0].GetPositionX(), ToCSpawnLoc[0].GetPositionY(), ToCSpawnLoc[0].GetPositionZ(), 5, TEMPSUMMON_CORPSE_TIMED_DESPAWN, 30*IN_MILLISECONDS))
                                 {
@@ -603,7 +596,7 @@ class npc_tirion_toc : public CreatureScript
                             Talk(SAY_STAGE_0_04);
                             if (_instance->GetBossState(BOSS_BEASTS) != DONE)
                             {
-                                _instance->DoUseDoorOrButton(_instance->GetData64(GO_MAIN_GATE_DOOR));
+                                _instance->DoUseDoorOrButton(_instance->GetGuidData(GO_MAIN_GATE_DOOR));
                                 if (Creature* temp = me->SummonCreature(NPC_DREADSCALE, ToCSpawnLoc[1].GetPositionX(), ToCSpawnLoc[1].GetPositionY(), ToCSpawnLoc[1].GetPositionZ(), 5, TEMPSUMMON_MANUAL_DESPAWN))
                                 {
                                     temp->GetMotionMaster()->MovePoint(0, ToCCommonLoc[5].GetPositionX(), ToCCommonLoc[5].GetPositionY(), ToCCommonLoc[5].GetPositionZ());
@@ -621,7 +614,7 @@ class npc_tirion_toc : public CreatureScript
                             Talk(SAY_STAGE_0_05);
                             if (_instance->GetBossState(BOSS_BEASTS) != DONE)
                             {
-                                _instance->DoUseDoorOrButton(_instance->GetData64(GO_MAIN_GATE_DOOR));
+                                _instance->DoUseDoorOrButton(_instance->GetGuidData(GO_MAIN_GATE_DOOR));
                                 if (Creature* temp = me->SummonCreature(NPC_ICEHOWL, ToCSpawnLoc[0].GetPositionX(), ToCSpawnLoc[0].GetPositionY(), ToCSpawnLoc[0].GetPositionZ(), 5, TEMPSUMMON_DEAD_DESPAWN))
                                 {
                                     temp->GetMotionMaster()->MovePoint(2, ToCCommonLoc[5].GetPositionX(), ToCCommonLoc[5].GetPositionY(), ToCCommonLoc[5].GetPositionZ());
@@ -649,7 +642,7 @@ class npc_tirion_toc : public CreatureScript
                         case 1010:
                             Talk(SAY_STAGE_1_01);
                             _updateTimer = 7*IN_MILLISECONDS;
-                            _instance->DoUseDoorOrButton(_instance->GetData64(GO_MAIN_GATE_DOOR));
+                            _instance->DoUseDoorOrButton(_instance->GetGuidData(GO_MAIN_GATE_DOOR));
                             me->SummonCreature(NPC_FIZZLEBANG, ToCSpawnLoc[0].GetPositionX(), ToCSpawnLoc[0].GetPositionY(), ToCSpawnLoc[0].GetPositionZ(), 2, TEMPSUMMON_CORPSE_TIMED_DESPAWN, DESPAWN_TIME);
                             _instance->SetData(TYPE_EVENT, 0);
                             break;
@@ -703,7 +696,7 @@ class npc_tirion_toc : public CreatureScript
                             _instance->SetData(TYPE_EVENT, 3092);
                             break;
                         case 3092:
-                            if (Creature* pChampionController = ObjectAccessor::GetCreature((*me), _instance->GetData64(NPC_CHAMPIONS_CONTROLLER)))
+                            if (Creature* pChampionController = ObjectAccessor::GetCreature((*me), _instance->GetGuidData(NPC_CHAMPIONS_CONTROLLER)))
                                 pChampionController->AI()->SetData(1, NOT_STARTED);
                             _instance->SetData(TYPE_EVENT, 3095);
                             break;
@@ -738,13 +731,13 @@ class npc_tirion_toc : public CreatureScript
                             _instance->SetData(TYPE_EVENT, 4015);
                             break;
                         case 4015:
-                            _instance->DoUseDoorOrButton(_instance->GetData64(GO_MAIN_GATE_DOOR));
-                            if (Creature* temp = ObjectAccessor::GetCreature((*me), _instance->GetData64(NPC_LIGHTBANE)))
+                            _instance->DoUseDoorOrButton(_instance->GetGuidData(GO_MAIN_GATE_DOOR));
+                            if (Creature* temp = ObjectAccessor::GetCreature((*me), _instance->GetGuidData(NPC_LIGHTBANE)))
                             {
                                 temp->GetMotionMaster()->MovePoint(1, ToCCommonLoc[8].GetPositionX(), ToCCommonLoc[8].GetPositionY(), ToCCommonLoc[8].GetPositionZ());
                                 temp->SetVisible(true);
                             }
-                            if (Creature* temp = ObjectAccessor::GetCreature((*me), _instance->GetData64(NPC_DARKBANE)))
+                            if (Creature* temp = ObjectAccessor::GetCreature((*me), _instance->GetGuidData(NPC_DARKBANE)))
                             {
                                 temp->GetMotionMaster()->MovePoint(1, ToCCommonLoc[9].GetPositionX(), ToCCommonLoc[9].GetPositionY(), ToCCommonLoc[9].GetPositionZ());
                                 temp->SetVisible(true);
@@ -753,7 +746,7 @@ class npc_tirion_toc : public CreatureScript
                             _instance->SetData(TYPE_EVENT, 4016);
                             break;
                         case 4016:
-                            _instance->DoUseDoorOrButton(_instance->GetData64(GO_MAIN_GATE_DOOR));
+                            _instance->DoUseDoorOrButton(_instance->GetGuidData(GO_MAIN_GATE_DOOR));
                             _instance->SetData(TYPE_EVENT, 4017);
                             break;
                         case 4040:
@@ -783,7 +776,7 @@ class npc_tirion_toc : public CreatureScript
                             _instance->SetData(TYPE_EVENT, 6005);
                             break;
                         case 6005:
-                            if (Creature* tirionFordring = ObjectAccessor::GetCreature((*me), _instance->GetData64(NPC_TIRION_FORDRING)))
+                            if (Creature* tirionFordring = ObjectAccessor::GetCreature((*me), _instance->GetGuidData(NPC_TIRION_FORDRING)))
                                 tirionFordring->AI()->Talk(SAY_STAGE_4_06);
                             _updateTimer = 20*IN_MILLISECONDS;
                             _instance->SetData(TYPE_EVENT, 6010);
@@ -791,7 +784,7 @@ class npc_tirion_toc : public CreatureScript
                         case 6010:
                             if (IsHeroic())
                             {
-                                if (Creature* tirionFordring = ObjectAccessor::GetCreature((*me), _instance->GetData64(NPC_TIRION_FORDRING)))
+                                if (Creature* tirionFordring = ObjectAccessor::GetCreature((*me), _instance->GetGuidData(NPC_TIRION_FORDRING)))
                                     tirionFordring->AI()->Talk(SAY_STAGE_4_07);
                                 _updateTimer = 1*MINUTE*IN_MILLISECONDS;
                                 _instance->SetBossState(BOSS_ANUBARAK, SPECIAL);
diff --git a/src/server/scripts/Northrend/DraktharonKeep/boss_king_dred.cpp b/src/server/scripts/Northrend/DraktharonKeep/boss_king_dred.cpp
index 694e502e508..9c6d9082db4 100644
--- a/src/server/scripts/Northrend/DraktharonKeep/boss_king_dred.cpp
+++ b/src/server/scripts/Northrend/DraktharonKeep/boss_king_dred.cpp
@@ -211,7 +211,7 @@ class npc_drakkari_gutripper : public CreatureScript
 
             void JustDied(Unit* /*killer*/) override
             {
-                if (Creature* Dred = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_KING_DRED)))
+                if (Creature* Dred = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_KING_DRED)))
                     Dred->AI()->DoAction(ACTION_RAPTOR_KILLED);
             }
         };
@@ -267,7 +267,7 @@ class npc_drakkari_scytheclaw : public CreatureScript
 
             void JustDied(Unit* /*killer*/) override
             {
-                if (Creature* Dred = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_KING_DRED)))
+                if (Creature* Dred = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_KING_DRED)))
                     Dred->AI()->DoAction(ACTION_RAPTOR_KILLED);
             }
         };
diff --git a/src/server/scripts/Northrend/DraktharonKeep/boss_novos.cpp b/src/server/scripts/Northrend/DraktharonKeep/boss_novos.cpp
index 6b26143745b..6c3b4378bec 100644
--- a/src/server/scripts/Northrend/DraktharonKeep/boss_novos.cpp
+++ b/src/server/scripts/Northrend/DraktharonKeep/boss_novos.cpp
@@ -216,7 +216,7 @@ public:
         void SetSummonerStatus(bool active)
         {
             for (uint8 i = 0; i < 4; i++)
-                if (uint64 guid = instance->GetData64(summoners[i].data))
+                if (ObjectGuid guid = instance->GetGuidData(summoners[i].data))
                     if (Creature* crystalChannelTarget = ObjectAccessor::GetCreature(*me, guid))
                     {
                         if (active)
@@ -229,7 +229,7 @@ public:
         void SetCrystalsStatus(bool active)
         {
             for (uint8 i = 0; i < 4; i++)
-                if (uint64 guid = instance->GetData64(DATA_NOVOS_CRYSTAL_1 + i))
+                if (ObjectGuid guid = instance->GetGuidData(DATA_NOVOS_CRYSTAL_1 + i))
                     if (GameObject* crystal = ObjectAccessor::GetGameObject(*me, guid))
                         SetCrystalStatus(crystal, active);
         }
@@ -249,7 +249,7 @@ public:
         void CrystalHandlerDied()
         {
             for (uint8 i = 0; i < 4; i++)
-                if (uint64 guid = instance->GetData64(DATA_NOVOS_CRYSTAL_1 + i))
+                if (ObjectGuid guid = instance->GetGuidData(DATA_NOVOS_CRYSTAL_1 + i))
                     if (GameObject* crystal = ObjectAccessor::GetGameObject(*me, guid))
                         if (crystal->GetGoState() == GO_STATE_ACTIVE)
                         {
@@ -266,7 +266,7 @@ public:
                 if (IsHeroic())
                     events.ScheduleEvent(EVENT_SUMMON_MINIONS, 15000);
             }
-            else if (uint64 guid = instance->GetData64(DATA_NOVOS_SUMMONER_4))
+            else if (ObjectGuid guid = instance->GetGuidData(DATA_NOVOS_SUMMONER_4))
                 if (Creature* crystalChannelTarget = ObjectAccessor::GetCreature(*me, guid))
                     crystalChannelTarget->AI()->SetData(SPELL_SUMMON_CRYSTAL_HANDLER, 15000);
         }
@@ -330,7 +330,7 @@ public:
         void JustSummoned(Creature* summon) override
         {
             if (InstanceScript* instance = me->GetInstanceScript())
-                if (uint64 guid = instance->GetData64(DATA_NOVOS))
+                if (ObjectGuid guid = instance->GetGuidData(DATA_NOVOS))
                     if (Creature* novos = ObjectAccessor::GetCreature(*me, guid))
                         novos->AI()->JustSummoned(summon);
 
diff --git a/src/server/scripts/Northrend/DraktharonKeep/boss_trollgore.cpp b/src/server/scripts/Northrend/DraktharonKeep/boss_trollgore.cpp
index a8f083c97ee..b91ca893955 100644
--- a/src/server/scripts/Northrend/DraktharonKeep/boss_trollgore.cpp
+++ b/src/server/scripts/Northrend/DraktharonKeep/boss_trollgore.cpp
@@ -135,7 +135,7 @@ class boss_trollgore : public CreatureScript
                             break;
                         case EVENT_SPAWN:
                             for (uint8 i = 0; i < 3; ++i)
-                                if (Creature* trigger = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_TROLLGORE_INVADER_SUMMONER_1 + i)))
+                                if (Creature* trigger = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_TROLLGORE_INVADER_SUMMONER_1 + i)))
                                     trigger->CastSpell(trigger, RAND(SPELL_SUMMON_INVADER_A, SPELL_SUMMON_INVADER_B, SPELL_SUMMON_INVADER_C), true, NULL, NULL, me->GetGUID());
 
                             events.ScheduleEvent(EVENT_SPAWN, urand(30000, 40000));
diff --git a/src/server/scripts/Northrend/DraktharonKeep/instance_drak_tharon_keep.cpp b/src/server/scripts/Northrend/DraktharonKeep/instance_drak_tharon_keep.cpp
index 30b473b6ebc..4e58d4dac03 100644
--- a/src/server/scripts/Northrend/DraktharonKeep/instance_drak_tharon_keep.cpp
+++ b/src/server/scripts/Northrend/DraktharonKeep/instance_drak_tharon_keep.cpp
@@ -31,15 +31,6 @@ class instance_drak_tharon_keep : public InstanceMapScript
             {
                 SetHeaders(DataHeader);
                 SetBossNumber(EncounterCount);
-
-                TrollgoreGUID       = 0;
-                NovosGUID           = 0;
-                KingDredGUID        = 0;
-                TharonJaGUID        = 0;
-
-                memset(TrollgoreInvaderSummonerGuids, 0, 3 * sizeof(uint64));
-                memset(NovosCrystalGUIDs, 0, 4 * sizeof(uint64));
-                memset(NovosSummonerGUIDs, 0, 4 * sizeof(uint64));
             }
 
             void OnCreatureCreate(Creature* creature) override
@@ -122,7 +113,7 @@ class instance_drak_tharon_keep : public InstanceMapScript
                     NovosSummonerGUIDs[3] = creature->GetGUID();
             }
 
-            uint64 GetData64(uint32 type) const override
+            ObjectGuid GetGuidData(uint32 type) const override
             {
                 switch (type)
                 {
@@ -150,7 +141,7 @@ class instance_drak_tharon_keep : public InstanceMapScript
                         return NovosSummonerGUIDs[type - DATA_NOVOS_SUMMONER_1];
                 }
 
-                return 0;
+                return ObjectGuid::Empty;
             }
 
             void OnUnitDeath(Unit* unit) override
@@ -161,14 +152,14 @@ class instance_drak_tharon_keep : public InstanceMapScript
             }
 
         protected:
-            uint64 TrollgoreGUID;
-            uint64 NovosGUID;
-            uint64 KingDredGUID;
-            uint64 TharonJaGUID;
-
-            uint64 TrollgoreInvaderSummonerGuids[3];
-            uint64 NovosCrystalGUIDs[4];
-            uint64 NovosSummonerGUIDs[4];
+            ObjectGuid TrollgoreGUID;
+            ObjectGuid NovosGUID;
+            ObjectGuid KingDredGUID;
+            ObjectGuid TharonJaGUID;
+
+            ObjectGuid TrollgoreInvaderSummonerGuids[3];
+            ObjectGuid NovosCrystalGUIDs[4];
+            ObjectGuid NovosSummonerGUIDs[4];
         };
 
         InstanceScript* GetInstanceScript(InstanceMap* map) const override
diff --git a/src/server/scripts/Northrend/FrozenHalls/ForgeOfSouls/boss_bronjahm.cpp b/src/server/scripts/Northrend/FrozenHalls/ForgeOfSouls/boss_bronjahm.cpp
index 670591a058c..77c97cc8342 100644
--- a/src/server/scripts/Northrend/FrozenHalls/ForgeOfSouls/boss_bronjahm.cpp
+++ b/src/server/scripts/Northrend/FrozenHalls/ForgeOfSouls/boss_bronjahm.cpp
@@ -203,8 +203,8 @@ class npc_corrupted_soul_fragment : public CreatureScript
 
                 if (TempSummon* summ = me->ToTempSummon())
                 {
-                    uint64 BronjahmGUID = instance->GetData64(DATA_BRONJAHM);
-                    if (GUID_LOPART(BronjahmGUID) != id)
+                    ObjectGuid BronjahmGUID(instance->GetGuidData(DATA_BRONJAHM));
+                    if (BronjahmGUID.GetCounter() != id)
                         return;
 
                     if (Creature* bronjahm = ObjectAccessor::GetCreature(*me, BronjahmGUID))
diff --git a/src/server/scripts/Northrend/FrozenHalls/ForgeOfSouls/boss_devourer_of_souls.cpp b/src/server/scripts/Northrend/FrozenHalls/ForgeOfSouls/boss_devourer_of_souls.cpp
index 4b4fd398e72..32590135f27 100644
--- a/src/server/scripts/Northrend/FrozenHalls/ForgeOfSouls/boss_devourer_of_souls.cpp
+++ b/src/server/scripts/Northrend/FrozenHalls/ForgeOfSouls/boss_devourer_of_souls.cpp
@@ -301,7 +301,7 @@ class boss_devourer_of_souls : public CreatureScript
                             me->SetReactState(REACT_PASSIVE);
 
                             //Remove any target
-                            me->SetTarget(0);
+                            me->SetTarget(ObjectGuid::Empty);
 
                             me->GetMotionMaster()->Clear();
                             me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_DISABLE_MOVE);
diff --git a/src/server/scripts/Northrend/FrozenHalls/ForgeOfSouls/instance_forge_of_souls.cpp b/src/server/scripts/Northrend/FrozenHalls/ForgeOfSouls/instance_forge_of_souls.cpp
index f3034fa0796..97c9d407622 100644
--- a/src/server/scripts/Northrend/FrozenHalls/ForgeOfSouls/instance_forge_of_souls.cpp
+++ b/src/server/scripts/Northrend/FrozenHalls/ForgeOfSouls/instance_forge_of_souls.cpp
@@ -38,8 +38,6 @@ class instance_forge_of_souls : public InstanceMapScript
             {
                 SetHeaders(DataHeader);
                 SetBossNumber(MAX_ENCOUNTER);
-                bronjahm = 0;
-                devourerOfSouls = 0;
 
                 teamInInstance = 0;
             }
@@ -96,7 +94,7 @@ class instance_forge_of_souls : public InstanceMapScript
                 return 0;
             }
 
-            uint64 GetData64(uint32 type) const override
+            ObjectGuid GetGuidData(uint32 type) const override
             {
                 switch (type)
                 {
@@ -108,12 +106,12 @@ class instance_forge_of_souls : public InstanceMapScript
                         break;
                 }
 
-                return 0;
+                return ObjectGuid::Empty;
             }
 
         private:
-            uint64 bronjahm;
-            uint64 devourerOfSouls;
+            ObjectGuid bronjahm;
+            ObjectGuid devourerOfSouls;
 
             uint32 teamInInstance;
         };
diff --git a/src/server/scripts/Northrend/FrozenHalls/HallsOfReflection/halls_of_reflection.cpp b/src/server/scripts/Northrend/FrozenHalls/HallsOfReflection/halls_of_reflection.cpp
index d0ad42d38e1..eeb05f44a71 100644
--- a/src/server/scripts/Northrend/FrozenHalls/HallsOfReflection/halls_of_reflection.cpp
+++ b/src/server/scripts/Northrend/FrozenHalls/HallsOfReflection/halls_of_reflection.cpp
@@ -347,8 +347,6 @@ class npc_jaina_or_sylvanas_intro_hor : public CreatureScript
             npc_jaina_or_sylvanas_intro_horAI(Creature* creature) : ScriptedAI(creature)
             {
                 _instance = me->GetInstanceScript();
-                _utherGUID = 0;
-                _lichkingGUID = 0;
             }
 
             void sGossipSelect(Player* player, uint32 /*menuId*/, uint32 gossipListId) override
@@ -376,8 +374,8 @@ class npc_jaina_or_sylvanas_intro_hor : public CreatureScript
             {
                 _events.Reset();
 
-                _utherGUID = 0;
-                _lichkingGUID = 0;
+                _utherGUID.Clear();
+                _lichkingGUID.Clear();
 
                 me->RemoveFlag(UNIT_NPC_FLAGS, UNIT_NPC_FLAG_GOSSIP | UNIT_NPC_FLAG_QUESTGIVER);
                 me->SetStandState(UNIT_STAND_STATE_STAND);
@@ -391,7 +389,7 @@ class npc_jaina_or_sylvanas_intro_hor : public CreatureScript
                 switch (_events.ExecuteEvent())
                 {
                     case EVENT_WALK_INTRO1:
-                        if (Creature* korelnOrLoralen = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_KORELN_LORALEN)))
+                        if (Creature* korelnOrLoralen = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_KORELN_LORALEN)))
                             korelnOrLoralen->GetMotionMaster()->MovePoint(0, KorelnOrLoralenPos[0]);
 
                         if (_instance->GetData(DATA_TEAM_IN_INSTANCE) == ALLIANCE)
@@ -415,7 +413,7 @@ class npc_jaina_or_sylvanas_intro_hor : public CreatureScript
                         me->SetFlag(UNIT_NPC_FLAGS, UNIT_NPC_FLAG_GOSSIP | UNIT_NPC_FLAG_QUESTGIVER);
                         break;
                     case EVENT_START_INTRO:
-                        if (Creature* korelnOrLoralen = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_KORELN_LORALEN)))
+                        if (Creature* korelnOrLoralen = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_KORELN_LORALEN)))
                             korelnOrLoralen->GetMotionMaster()->MovePoint(0, KorelnOrLoralenPos[1]);
                         // Begining of intro is differents between factions as the speech sequence and timers are differents.
                         if (_instance->GetData(DATA_TEAM_IN_INSTANCE) == ALLIANCE)
@@ -441,7 +439,7 @@ class npc_jaina_or_sylvanas_intro_hor : public CreatureScript
                     case EVENT_INTRO_A2_3:
                         me->CastSpell(me, SPELL_CAST_VISUAL, false);
                         me->CastSpell(me, SPELL_FROSTMOURNE_SOUNDS, true);
-                        _instance->HandleGameObject(_instance->GetData64(DATA_FROSTMOURNE), true);
+                        _instance->HandleGameObject(_instance->GetGuidData(DATA_FROSTMOURNE), true);
                         _events.ScheduleEvent(EVENT_INTRO_A2_4, 10000);
                         break;
                     case EVENT_INTRO_A2_4:
@@ -533,7 +531,7 @@ class npc_jaina_or_sylvanas_intro_hor : public CreatureScript
                         Talk(SAY_SYLVANAS_INTRO_3);
                         me->CastSpell(me, SPELL_CAST_VISUAL, false);
                         me->CastSpell(me, SPELL_FROSTMOURNE_SOUNDS, true);
-                        _instance->HandleGameObject(_instance->GetData64(DATA_FROSTMOURNE), true);
+                        _instance->HandleGameObject(_instance->GetGuidData(DATA_FROSTMOURNE), true);
                         _events.ScheduleEvent(EVENT_INTRO_H2_4, 6000);
                         break;
                     case EVENT_INTRO_H2_4:
@@ -627,7 +625,7 @@ class npc_jaina_or_sylvanas_intro_hor : public CreatureScript
                         {
                             uther->CastSpell(uther, SPELL_UTHER_DESPAWN, true);
                             uther->DespawnOrUnsummon(5000);
-                            _utherGUID = 0;
+                            _utherGUID.Clear();
                         }
                         _events.ScheduleEvent(EVENT_INTRO_LK_4, 9000);
                         break;
@@ -635,7 +633,7 @@ class npc_jaina_or_sylvanas_intro_hor : public CreatureScript
                         // He steps forward and removes the runeblade from the heap of skulls.
                         if (Creature* lichking = ObjectAccessor::GetCreature(*me, _lichkingGUID))
                         {
-                            if (GameObject* frostmourne = ObjectAccessor::GetGameObject(*me, _instance->GetData64(DATA_FROSTMOURNE)))
+                            if (GameObject* frostmourne = ObjectAccessor::GetGameObject(*me, _instance->GetGuidData(DATA_FROSTMOURNE)))
                                 frostmourne->SetLootState(GO_JUST_DEACTIVATED);
                             lichking->CastSpell(lichking, SPELL_TAKE_FROSTMOURNE, true);
                             lichking->CastSpell(lichking, SPELL_FROSTMOURNE_VISUAL, true);
@@ -649,12 +647,12 @@ class npc_jaina_or_sylvanas_intro_hor : public CreatureScript
                         break;
                     case EVENT_INTRO_LK_6:
                         // summon Falric and Marwyn. then go back to the door
-                        if (Creature* falric = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_FALRIC)))
+                        if (Creature* falric = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_FALRIC)))
                         {
                             falric->CastSpell(falric, SPELL_BOSS_SPAWN_AURA, true);
                             falric->SetVisible(true);
                         }
-                        if (Creature* marwyn = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_MARWYN)))
+                        if (Creature* marwyn = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_MARWYN)))
                         {
                             marwyn->CastSpell(marwyn, SPELL_BOSS_SPAWN_AURA, true);
                             marwyn->SetVisible(true);
@@ -669,7 +667,7 @@ class npc_jaina_or_sylvanas_intro_hor : public CreatureScript
                         _events.ScheduleEvent(EVENT_OPEN_IMPENETRABLE_DOOR, 5000);
                         break;
                     case EVENT_INTRO_LK_7:
-                        if (Creature* marwyn = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_MARWYN)))
+                        if (Creature* marwyn = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_MARWYN)))
                         {
                             marwyn->AI()->Talk(SAY_MARWYN_INTRO_1);
                             marwyn->SetWalk(true);
@@ -678,7 +676,7 @@ class npc_jaina_or_sylvanas_intro_hor : public CreatureScript
                         _events.ScheduleEvent(EVENT_INTRO_LK_8, 1000);
                         break;
                     case EVENT_INTRO_LK_8:
-                        if (Creature* falric = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_FALRIC)))
+                        if (Creature* falric = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_FALRIC)))
                         {
                             falric->AI()->Talk(SAY_FALRIC_INTRO_1);
                             falric->SetWalk(true);
@@ -687,7 +685,7 @@ class npc_jaina_or_sylvanas_intro_hor : public CreatureScript
                         _events.ScheduleEvent(EVENT_INTRO_LK_9, 5000);
                         break;
                     case EVENT_INTRO_LK_9:
-                        if (Creature* falric = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_FALRIC)))
+                        if (Creature* falric = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_FALRIC)))
                             falric->AI()->Talk(SAY_FALRIC_INTRO_2);
                         _instance->ProcessEvent(0, EVENT_SPAWN_WAVES);
                         _events.ScheduleEvent(EVENT_INTRO_LK_10, 4000);
@@ -699,7 +697,7 @@ class npc_jaina_or_sylvanas_intro_hor : public CreatureScript
                             Talk(SAY_SYLVANAS_INTRO_END);
                         me->GetMotionMaster()->MovePoint(0, LichKingMoveAwayPos);
                         /// @todo: needs some improvements
-                        if (Creature* korelnOrLoralen = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_KORELN_LORALEN)))
+                        if (Creature* korelnOrLoralen = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_KORELN_LORALEN)))
                             korelnOrLoralen->GetMotionMaster()->MovePoint(1, KorelnOrLoralenPos[2]);
                         _events.ScheduleEvent(EVENT_INTRO_LK_11, 5000);
                         break;
@@ -719,7 +717,7 @@ class npc_jaina_or_sylvanas_intro_hor : public CreatureScript
                         if (Creature* lichking = ObjectAccessor::GetCreature(*me, _lichkingGUID))
                         {
                             lichking->DespawnOrUnsummon(5000);
-                            _lichkingGUID = 0;
+                            _lichkingGUID.Clear();
                         }
                         me->DespawnOrUnsummon(10000);
                         _events.ScheduleEvent(EVENT_CLOSE_IMPENETRABLE_DOOR, 7000);
@@ -730,7 +728,7 @@ class npc_jaina_or_sylvanas_intro_hor : public CreatureScript
                         else
                             me->GetMotionMaster()->MovePoint(0, SylvanasIntroPosition[2]);
 
-                        if (Creature* korelnOrLoralen = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_KORELN_LORALEN)))
+                        if (Creature* korelnOrLoralen = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_KORELN_LORALEN)))
                             korelnOrLoralen->GetMotionMaster()->MovePoint(0, KorelnOrLoralenPos[1]);
 
                         if (Creature* lichking = me->SummonCreature(NPC_THE_LICH_KING_INTRO, LichKingIntroPosition[0], TEMPSUMMON_MANUAL_DESPAWN))
@@ -745,13 +743,13 @@ class npc_jaina_or_sylvanas_intro_hor : public CreatureScript
                         _events.ScheduleEvent(EVENT_INTRO_LK_4, 15000);
                         break;
                     case EVENT_OPEN_IMPENETRABLE_DOOR:
-                        _instance->HandleGameObject(_instance->GetData64(DATA_IMPENETRABLE_DOOR), true);
+                        _instance->HandleGameObject(_instance->GetGuidData(DATA_IMPENETRABLE_DOOR), true);
                         break;
                     case EVENT_CLOSE_IMPENETRABLE_DOOR:
-                        _instance->HandleGameObject(_instance->GetData64(DATA_IMPENETRABLE_DOOR), false);
+                        _instance->HandleGameObject(_instance->GetGuidData(DATA_IMPENETRABLE_DOOR), false);
                         break;
                     case EVENT_KORELN_LORALEN_DEATH:
-                        if (Creature* korelnOrLoralen = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_KORELN_LORALEN)))
+                        if (Creature* korelnOrLoralen = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_KORELN_LORALEN)))
                             korelnOrLoralen->CastSpell(korelnOrLoralen, SPELL_FEIGN_DEATH);
                         break;
                     default:
@@ -762,8 +760,8 @@ class npc_jaina_or_sylvanas_intro_hor : public CreatureScript
         private:
             InstanceScript* _instance;
             EventMap _events;
-            uint64 _utherGUID;
-            uint64 _lichkingGUID;
+            ObjectGuid _utherGUID;
+            ObjectGuid _lichkingGUID;
         };
 
         CreatureAI* GetAI(Creature* creature) const override
@@ -807,7 +805,7 @@ class npc_jaina_or_sylvanas_escape_hor : public CreatureScript
 
             void JustDied(Unit* /*killer*/) override
             {
-                if (Creature* lichking = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_THE_LICH_KING_ESCAPE)))
+                if (Creature* lichking = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_THE_LICH_KING_ESCAPE)))
                     lichking->AI()->EnterEvadeMode(); // event failed
             }
 
@@ -868,10 +866,10 @@ class npc_jaina_or_sylvanas_escape_hor : public CreatureScript
                 else
                     me->RemoveAurasDueToSpell(SPELL_SYLVANAS_DESTROY_ICE_WALL);
 
-                _instance->HandleGameObject(_instance->GetData64(DATA_ICEWALL), true);
-                me->m_Events.AddEvent(new GameObjectDeleteDelayEvent(me, _instance->GetData64(DATA_ICEWALL)), me->m_Events.CalculateTime(5000));
+                _instance->HandleGameObject(_instance->GetGuidData(DATA_ICEWALL), true);
+                me->m_Events.AddEvent(new GameObjectDeleteDelayEvent(me, _instance->GetGuidData(DATA_ICEWALL)), me->m_Events.CalculateTime(5000));
 
-                if (Creature* wallTarget = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_ICEWALL_TARGET)))
+                if (Creature* wallTarget = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_ICEWALL_TARGET)))
                     wallTarget->DespawnOrUnsummon();
             }
 
@@ -879,7 +877,7 @@ class npc_jaina_or_sylvanas_escape_hor : public CreatureScript
             {
                 if (_icewall < 4)
                 {
-                    if (Creature* lichking = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_THE_LICH_KING_ESCAPE)))
+                    if (Creature* lichking = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_THE_LICH_KING_ESCAPE)))
                     {
                         lichking->StopMoving();
                         if (Creature* wallTarget = me->SummonCreature(NPC_ICE_WALL_TARGET, IceWallTargetPosition[_icewall], TEMPSUMMON_MANUAL_DESPAWN, 720000))
@@ -895,7 +893,7 @@ class npc_jaina_or_sylvanas_escape_hor : public CreatureScript
                 if (_icewall < 4)
                     Talk(SAY_JAINA_SYLVANAS_ESCAPE_2 + _icewall);
 
-                if (Creature* wallTarget = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_ICEWALL_TARGET)))
+                if (Creature* wallTarget = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_ICEWALL_TARGET)))
                     me->SetFacingToObject(wallTarget);
 
                 if (_instance->GetData(DATA_TEAM_IN_INSTANCE) == ALLIANCE)
@@ -925,7 +923,7 @@ class npc_jaina_or_sylvanas_escape_hor : public CreatureScript
                         break;
                     case POINT_TRAP:
                         Talk(SAY_JAINA_SYLVANAS_ESCAPE_8);
-                        if (Creature* lichking = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_THE_LICH_KING_ESCAPE)))
+                        if (Creature* lichking = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_THE_LICH_KING_ESCAPE)))
                             me->SetFacingToObject(lichking);
                         break;
                     default:
@@ -933,7 +931,7 @@ class npc_jaina_or_sylvanas_escape_hor : public CreatureScript
                 }
             }
 
-            void DeleteAllFromThreatList(Unit* target, uint64 except)
+            void DeleteAllFromThreatList(Unit* target, ObjectGuid except)
             {
                 ThreatContainer::StorageType threatlist = target->getThreatManager().getThreatList();
                 for (auto i : threatlist)
@@ -959,7 +957,7 @@ class npc_jaina_or_sylvanas_escape_hor : public CreatureScript
                             else
                                 DoCast(me, SPELL_SYLVANAS_CLOAK_OF_DARKNESS);
 
-                            if (Creature* lichking = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_THE_LICH_KING_ESCAPE)))
+                            if (Creature* lichking = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_THE_LICH_KING_ESCAPE)))
                             {
                                 me->CastSpell(lichking, SPELL_TAUNT_ARTHAS, true);
                                 lichking->ApplySpellImmune(0, IMMUNITY_STATE, SPELL_AURA_MOD_TAUNT, true);
@@ -971,7 +969,7 @@ class npc_jaina_or_sylvanas_escape_hor : public CreatureScript
                             me->RemoveFlag(UNIT_NPC_FLAGS, UNIT_NPC_FLAG_GOSSIP | UNIT_NPC_FLAG_QUESTGIVER);
                             break;
                         case EVENT_ESCAPE_1:
-                            if (Creature* lichking = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_THE_LICH_KING_ESCAPE)))
+                            if (Creature* lichking = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_THE_LICH_KING_ESCAPE)))
                             {
                                 if (_instance->GetData(DATA_TEAM_IN_INSTANCE) == ALLIANCE)
                                     lichking->AI()->Talk(SAY_LK_ESCAPE_1);
@@ -990,7 +988,7 @@ class npc_jaina_or_sylvanas_escape_hor : public CreatureScript
                             else
                                 DoCast(me, SPELL_SYLVANAS_BLINDING_RETREAT, true);
 
-                            if (Creature* lichking = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_THE_LICH_KING_ESCAPE)))
+                            if (Creature* lichking = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_THE_LICH_KING_ESCAPE)))
                             {
                                 lichking->SetReactState(REACT_PASSIVE);
                                 lichking->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_PACIFIED);
@@ -1010,7 +1008,7 @@ class npc_jaina_or_sylvanas_escape_hor : public CreatureScript
                                 DoCast(me, SPELL_CREDIT_FINDING_SYLVANAS);
                             Talk(SAY_JAINA_SYLVANAS_ESCAPE_1);
 
-                            if (Creature* lichking = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_THE_LICH_KING_ESCAPE)))
+                            if (Creature* lichking = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_THE_LICH_KING_ESCAPE)))
                             {
                                 lichking->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_IMMUNE_TO_PC);
                                 lichking->RemoveAllAttackers();
@@ -1024,7 +1022,7 @@ class npc_jaina_or_sylvanas_escape_hor : public CreatureScript
                             me->GetMotionMaster()->MovePoint(POINT_SHADOW_THRONE_DOOR, SylvanasShadowThroneDoorPosition);
                             break;
                         case EVENT_ESCAPE_6:
-                            if (Creature* lichking = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_THE_LICH_KING_ESCAPE)))
+                            if (Creature* lichking = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_THE_LICH_KING_ESCAPE)))
                             {
                                 lichking->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_IMMUNE_TO_PC | UNIT_FLAG_PACIFIED);
 
@@ -1044,13 +1042,13 @@ class npc_jaina_or_sylvanas_escape_hor : public CreatureScript
                             _events.ScheduleEvent(EVENT_ESCAPE_7, 1000);
                             break;
                         case EVENT_ESCAPE_7:
-                            if (Creature* lichking = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_THE_LICH_KING_ESCAPE)))
+                            if (Creature* lichking = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_THE_LICH_KING_ESCAPE)))
                                 lichking->HandleEmoteCommand(TEXT_EMOTE_ROAR);
                             me->GetMotionMaster()->MovePoint(0, NpcJainaOrSylvanasEscapeRoute[0]);
                             _events.ScheduleEvent(EVENT_ESCAPE_8, 3000);
                             break;
                         case EVENT_ESCAPE_8:
-                            if (Creature* lichking = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_THE_LICH_KING_ESCAPE)))
+                            if (Creature* lichking = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_THE_LICH_KING_ESCAPE)))
                                 lichking->GetMotionMaster()->MovePoint(0, NpcJainaOrSylvanasEscapeRoute[0]);
                             _events.ScheduleEvent(EVENT_ESCAPE_9, 1000);
                             break;
@@ -1060,7 +1058,7 @@ class npc_jaina_or_sylvanas_escape_hor : public CreatureScript
                             break;
                         case EVENT_ESCAPE_10:
                             me->GetMotionMaster()->MovePoint(0, NpcJainaOrSylvanasEscapeRoute[2]);
-                            if (Creature* lichking = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_THE_LICH_KING_ESCAPE)))
+                            if (Creature* lichking = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_THE_LICH_KING_ESCAPE)))
                                 lichking->GetMotionMaster()->MovePoint(1, LichKingFirstSummon);
                             _events.ScheduleEvent(EVENT_ESCAPE_11, 6000);
                             break;
@@ -1069,7 +1067,7 @@ class npc_jaina_or_sylvanas_escape_hor : public CreatureScript
                             _events.ScheduleEvent(EVENT_ESCAPE_12, 4000);
                             break;
                         case EVENT_ESCAPE_12:
-                            if (Creature* lichking = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_THE_LICH_KING_ESCAPE)))
+                            if (Creature* lichking = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_THE_LICH_KING_ESCAPE)))
                                 lichking->CastSpell(lichking, SPELL_PAIN_AND_SUFFERING, true);
 
                             me->GetMotionMaster()->MovePoint(POINT_ATTACK_ICEWALL, NpcJainaOrSylvanasEscapeRoute[3]);
@@ -1089,7 +1087,7 @@ class npc_jaina_or_sylvanas_escape_hor : public CreatureScript
 
                             Talk(SAY_JAINA_SYLVANAS_ESCAPE_6);
 
-                            if (Creature* lichking = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_THE_LICH_KING_ESCAPE)))
+                            if (Creature* lichking = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_THE_LICH_KING_ESCAPE)))
                             {
                                 lichking->GetMotionMaster()->MovePoint(2, LichKingFinalPos);
                                 lichking->RemoveAurasDueToSpell(SPELL_REMORSELESS_WINTER);
@@ -1100,7 +1098,7 @@ class npc_jaina_or_sylvanas_escape_hor : public CreatureScript
                             me->RemoveAurasDueToSpell(SPELL_HARVEST_SOUL);
                             if (_instance->GetData(DATA_TEAM_IN_INSTANCE) == ALLIANCE)
                                 Talk(SAY_JAINA_ESCAPE_9);
-                            if (Transport* gunship = ObjectAccessor::GetTransport(*me, _instance->GetData64(DATA_GUNSHIP)))
+                            if (Transport* gunship = ObjectAccessor::GetTransport(*me, _instance->GetGuidData(DATA_GUNSHIP)))
                                 gunship->EnableMovement(true);
                             _instance->SetBossState(DATA_THE_LICH_KING_ESCAPE, DONE);
                             break;
@@ -1163,16 +1161,16 @@ class npc_the_lich_king_escape_hor : public CreatureScript
                     switch (pointId)
                     {
                         case 1:
-                            if (Creature* target = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_ESCAPE_LEADER)))
+                            if (Creature* target = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_ESCAPE_LEADER)))
                                 me->GetMotionMaster()->MoveChase(target);
                             break;
                         case 2:
                             Talk(SAY_LK_ESCAPE_HARVEST_SOUL);
 
-                            if (Creature* target = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_ESCAPE_LEADER)))
+                            if (Creature* target = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_ESCAPE_LEADER)))
                                 DoCast(target, SPELL_HARVEST_SOUL);
 
-                            if (Transport* gunship = ObjectAccessor::GetTransport(*me, _instance->GetData64(DATA_GUNSHIP)))
+                            if (Transport* gunship = ObjectAccessor::GetTransport(*me, _instance->GetGuidData(DATA_GUNSHIP)))
                                 gunship->EnableMovement(true);
                             break;
                         default:
@@ -1197,7 +1195,7 @@ class npc_the_lich_king_escape_hor : public CreatureScript
                 // All summons dead and no summon events scheduled
                 if (!_summonsCount && _events.Empty())
                 {
-                    if (Creature* jainaOrSylvanas = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_ESCAPE_LEADER)))
+                    if (Creature* jainaOrSylvanas = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_ESCAPE_LEADER)))
                         jainaOrSylvanas->AI()->DoAction(ACTION_WALL_BROKEN);
                 }
             }
@@ -2023,12 +2021,12 @@ class at_hor_waves_restarter : public AreaTriggerScript
             {
                 _instance->ProcessEvent(0, EVENT_SPAWN_WAVES);
 
-                if (Creature* falric = ObjectAccessor::GetCreature(*player, _instance->GetData64(DATA_FALRIC)))
+                if (Creature* falric = ObjectAccessor::GetCreature(*player, _instance->GetGuidData(DATA_FALRIC)))
                 {
                     falric->CastSpell(falric, SPELL_BOSS_SPAWN_AURA, true);
                     falric->SetVisible(true);
                 }
-                if (Creature* marwyn = ObjectAccessor::GetCreature(*player, _instance->GetData64(DATA_MARWYN)))
+                if (Creature* marwyn = ObjectAccessor::GetCreature(*player, _instance->GetGuidData(DATA_MARWYN)))
                 {
                     marwyn->CastSpell(marwyn, SPELL_BOSS_SPAWN_AURA, true);
                     marwyn->SetVisible(true);
@@ -2133,7 +2131,7 @@ struct npc_escape_event_trash : public ScriptedAI
     void IsSummonedBy(Unit* /*summoner*/) override
     {
         DoZoneInCombat(me, 0.0f);
-        if (Creature* leader = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_ESCAPE_LEADER)))
+        if (Creature* leader = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_ESCAPE_LEADER)))
         {
             me->SetInCombatWith(leader);
             leader->SetInCombatWith(me);
diff --git a/src/server/scripts/Northrend/FrozenHalls/HallsOfReflection/halls_of_reflection.h b/src/server/scripts/Northrend/FrozenHalls/HallsOfReflection/halls_of_reflection.h
index 578cf4f84fa..e44bf1d5aed 100644
--- a/src/server/scripts/Northrend/FrozenHalls/HallsOfReflection/halls_of_reflection.h
+++ b/src/server/scripts/Northrend/FrozenHalls/HallsOfReflection/halls_of_reflection.h
@@ -213,7 +213,7 @@ struct boss_horAI : BossAI
 class GameObjectDeleteDelayEvent : public BasicEvent
 {
     public:
-        GameObjectDeleteDelayEvent(Unit* owner, uint64 gameObjectGUID) : _owner(owner), _gameObjectGUID(gameObjectGUID) { }
+        GameObjectDeleteDelayEvent(Unit* owner, ObjectGuid gameObjectGUID) : _owner(owner), _gameObjectGUID(gameObjectGUID) { }
 
         void DeleteGameObject()
         {
@@ -234,7 +234,7 @@ class GameObjectDeleteDelayEvent : public BasicEvent
 
     private:
         Unit* _owner;
-        uint64 _gameObjectGUID;
+        ObjectGuid _gameObjectGUID;
 };
 
 template<class AI>
diff --git a/src/server/scripts/Northrend/FrozenHalls/HallsOfReflection/instance_halls_of_reflection.cpp b/src/server/scripts/Northrend/FrozenHalls/HallsOfReflection/instance_halls_of_reflection.cpp
index f73181ba1f3..6a157be26ee 100644
--- a/src/server/scripts/Northrend/FrozenHalls/HallsOfReflection/instance_halls_of_reflection.cpp
+++ b/src/server/scripts/Northrend/FrozenHalls/HallsOfReflection/instance_halls_of_reflection.cpp
@@ -85,27 +85,6 @@ class instance_halls_of_reflection : public InstanceMapScript
                 SetHeaders(DataHeader);
                 SetBossNumber(EncounterCount);
 
-                JainaOrSylvanasIntroGUID  = 0;
-                KorelnOrLoralenGUID       = 0;
-                TheLichkingIntroGUID      = 0;
-                FalricGUID                = 0;
-                MarwynGUID                = 0;
-                FrostmourneAltarBunnyGUID = 0;
-                FrostswornGeneralGUID     = 0;
-                JainaOrSylvanasEscapeGUID = 0;
-                TheLichKingEscapeGUID     = 0;
-
-                FrostmourneGUID           = 0;
-                EntranceDoorGUID          = 0;
-                ImpenetrableDoorGUID      = 0;
-                ShadowThroneDoorGUID      = 0;
-                CaveInGUID                = 0;
-                GunshipGUID               = 0;
-                CaptainsChestGUID         = 0;
-                CaptainGUID               = 0;
-                IcewallGUID               = 0;
-                IcewallTargetGUID         = 0;
-
                 _teamInInstance           = 0;
                 _waveCount                = 0;
                 _introState               = NOT_STARTED;
@@ -200,7 +179,7 @@ class instance_halls_of_reflection : public InstanceMapScript
                         break;
                     }
                     case NPC_ICE_WALL_TARGET:
-                        IcewallTargetGUID = 0;
+                        IcewallTargetGUID.Clear();
                         break;
                     case NPC_WORLD_TRIGGER:
                     case NPC_GUNSHIP_CANNON_HORDE:
@@ -256,11 +235,11 @@ class instance_halls_of_reflection : public InstanceMapScript
                         break;
                     case GO_IMPENETRABLE_DOOR:
                         ImpenetrableDoorGUID = go->GetGUID();
-                        HandleGameObject(0, GetBossState(DATA_MARWYN) == DONE, go);
+                        HandleGameObject(ObjectGuid::Empty, GetBossState(DATA_MARWYN) == DONE, go);
                         break;
                     case GO_SHADOW_THRONE_DOOR:
                         ShadowThroneDoorGUID = go->GetGUID();
-                        HandleGameObject(0, GetData(DATA_FROSTSWORN_GENERAL) == DONE, go);
+                        HandleGameObject(ObjectGuid::Empty, GetData(DATA_FROSTSWORN_GENERAL) == DONE, go);
                         break;
                     case GO_CAVE_IN:
                         CaveInGUID = go->GetGUID();
@@ -282,7 +261,7 @@ class instance_halls_of_reflection : public InstanceMapScript
                         CaptainsChestGUID = go->GetGUID();
                         break;
                     case GO_ICE_WALL:
-                        HandleGameObject(0, false, go);
+                        HandleGameObject(ObjectGuid::Empty, false, go);
                         IcewallGUID = go->GetGUID();
                         break;
                     default:
@@ -483,7 +462,7 @@ class instance_halls_of_reflection : public InstanceMapScript
                     case NPC_WAVE_MAGE:
                     {
                         uint32 waveId = creature->AI()->GetData(0);
-                        for (uint64 guid : waveGuidList[waveId])
+                        for (ObjectGuid guid : waveGuidList[waveId])
                         {
                             if (Creature* npc = instance->GetCreature(guid))
                                 if (npc->IsAlive())
@@ -539,7 +518,7 @@ class instance_halls_of_reflection : public InstanceMapScript
                             {
                                 tempList = possibilityList;
 
-                                uint64 bossGuid = i <= 3 ? FalricGUID : MarwynGUID;
+                                ObjectGuid bossGuid = i <= 3 ? FalricGUID : MarwynGUID;
 
                                 if (!i)
                                     Trinity::Containers::RandomResizeList(tempList, 3);
@@ -571,7 +550,7 @@ class instance_halls_of_reflection : public InstanceMapScript
                         if (_waveCount % 5)
                         {
                             uint32 internalWaveId = _waveCount - ((_waveCount < 5) ? 1 : 2);
-                            for (uint64 guid : waveGuidList[internalWaveId])
+                            for (ObjectGuid guid : waveGuidList[internalWaveId])
                             {
                                 if (Creature* temp = instance->GetCreature(guid))
                                 {
@@ -610,7 +589,7 @@ class instance_halls_of_reflection : public InstanceMapScript
                         // despawn wave npcs
                         for (uint8 i = 0; i < 8; ++i)
                         {
-                            for (uint64 guid : waveGuidList[i])
+                            for (ObjectGuid guid : waveGuidList[i])
                                 if (Creature* creature = instance->GetCreature(guid))
                                     creature->DespawnOrUnsummon(1);
                             waveGuidList[i].clear();
@@ -630,9 +609,9 @@ class instance_halls_of_reflection : public InstanceMapScript
                         if (Creature* captain = instance->GetCreature(CaptainGUID))
                             captain->AI()->Talk(SAY_CAPTAIN_FIRE);
 
-                        for (uint64 guid : GunshipCannonGUIDs)
+                        for (ObjectGuid guid : GunshipCannonGUIDs)
                         {
-                            uint32 entry = GUID_ENPART(guid);
+                            uint32 entry = guid.GetEntry();
                             if ((entry == NPC_WORLD_TRIGGER && _teamInInstance == ALLIANCE) || (entry == NPC_GUNSHIP_CANNON_HORDE && _teamInInstance == HORDE))
                                 if (Creature* cannon = instance->GetCreature(guid))
                                     cannon->CastSpell(cannon, SPELL_GUNSHIP_CANNON_FIRE, true);
@@ -642,7 +621,7 @@ class instance_halls_of_reflection : public InstanceMapScript
                         if (Transport* gunship = instance->GetTransport(GunshipGUID))
                             gunship->EnableMovement(false);
 
-                        for (uint64 guid : GunshipStairGUIDs)
+                        for (ObjectGuid guid : GunshipStairGUIDs)
                             if (GameObject* stairs = instance->GetGameObject(guid))
                                 stairs->SetRespawnTime(DAY);
 
@@ -677,7 +656,7 @@ class instance_halls_of_reflection : public InstanceMapScript
                 return 0;
             }
 
-            uint64 GetData64(uint32 type) const override
+            ObjectGuid GetGuidData(uint32 type) const override
             {
                 switch (type)
                 {
@@ -707,7 +686,7 @@ class instance_halls_of_reflection : public InstanceMapScript
                         break;
                 }
 
-                return 0;
+                return ObjectGuid::Empty;
             }
 
             void WriteSaveDataMore(std::ostringstream& data) override
@@ -732,21 +711,21 @@ class instance_halls_of_reflection : public InstanceMapScript
             }
 
         private:
-            uint64 JainaOrSylvanasIntroGUID; // unused
-            uint64 KorelnOrLoralenGUID;
-            uint64 TheLichkingIntroGUID; // unused
-            uint64 FalricGUID;
-            uint64 MarwynGUID;
-            uint64 FrostmourneAltarBunnyGUID;
-            uint64 FrostswornGeneralGUID;
-            uint64 JainaOrSylvanasEscapeGUID;
-            uint64 TheLichKingEscapeGUID;
-
-            uint64 FrostmourneGUID;
-            uint64 EntranceDoorGUID;
-            uint64 ImpenetrableDoorGUID;
-            uint64 ShadowThroneDoorGUID;
-            uint64 CaveInGUID;
+            ObjectGuid JainaOrSylvanasIntroGUID; // unused
+            ObjectGuid KorelnOrLoralenGUID;
+            ObjectGuid TheLichkingIntroGUID; // unused
+            ObjectGuid FalricGUID;
+            ObjectGuid MarwynGUID;
+            ObjectGuid FrostmourneAltarBunnyGUID;
+            ObjectGuid FrostswornGeneralGUID;
+            ObjectGuid JainaOrSylvanasEscapeGUID;
+            ObjectGuid TheLichKingEscapeGUID;
+
+            ObjectGuid FrostmourneGUID;
+            ObjectGuid EntranceDoorGUID;
+            ObjectGuid ImpenetrableDoorGUID;
+            ObjectGuid ShadowThroneDoorGUID;
+            ObjectGuid CaveInGUID;
 
             uint32 _teamInInstance;
             uint32 _waveCount;
@@ -754,16 +733,16 @@ class instance_halls_of_reflection : public InstanceMapScript
             uint32 _frostswornGeneralState;
 
             EventMap events;
-            std::set<uint64> waveGuidList[8];
+            GuidSet waveGuidList[8];
 
-            uint64 GunshipGUID;
-            uint64 CaptainsChestGUID;
-            uint64 CaptainGUID;
-            uint64 IcewallGUID;
-            uint64 IcewallTargetGUID;
+            ObjectGuid GunshipGUID;
+            ObjectGuid CaptainsChestGUID;
+            ObjectGuid CaptainGUID;
+            ObjectGuid IcewallGUID;
+            ObjectGuid IcewallTargetGUID;
 
-            std::set<uint64> GunshipCannonGUIDs;
-            std::set<uint64> GunshipStairGUIDs;
+            GuidSet GunshipCannonGUIDs;
+            GuidSet GunshipStairGUIDs;
         };
 
         InstanceScript* GetInstanceScript(InstanceMap* map) const override
diff --git a/src/server/scripts/Northrend/FrozenHalls/PitOfSaron/boss_forgemaster_garfrost.cpp b/src/server/scripts/Northrend/FrozenHalls/PitOfSaron/boss_forgemaster_garfrost.cpp
index 62a6ac41074..3ac5ec3070a 100644
--- a/src/server/scripts/Northrend/FrozenHalls/PitOfSaron/boss_forgemaster_garfrost.cpp
+++ b/src/server/scripts/Northrend/FrozenHalls/PitOfSaron/boss_forgemaster_garfrost.cpp
@@ -121,7 +121,7 @@ class boss_garfrost : public CreatureScript
                 Talk(SAY_DEATH);
                 me->RemoveAllGameObjects();
 
-                if (Creature* tyrannus = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_TYRANNUS)))
+                if (Creature* tyrannus = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_TYRANNUS)))
                     tyrannus->AI()->Talk(SAY_TYRANNUS_DEATH);
             }
 
diff --git a/src/server/scripts/Northrend/FrozenHalls/PitOfSaron/boss_krickandick.cpp b/src/server/scripts/Northrend/FrozenHalls/PitOfSaron/boss_krickandick.cpp
index 5b147344a59..327ea2c9b7b 100644
--- a/src/server/scripts/Northrend/FrozenHalls/PitOfSaron/boss_krickandick.cpp
+++ b/src/server/scripts/Northrend/FrozenHalls/PitOfSaron/boss_krickandick.cpp
@@ -151,7 +151,7 @@ class boss_ick : public CreatureScript
 
             Creature* GetKrick()
             {
-                return ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_KRICK));
+                return ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_KRICK));
             }
 
             void EnterCombat(Unit* /*who*/) override
@@ -293,8 +293,8 @@ class boss_krick : public CreatureScript
             void Initialize()
             {
                 _phase = PHASE_COMBAT;
-                _outroNpcGUID = 0;
-                _tyrannusGUID = 0;
+                _outroNpcGUID.Clear();
+                _tyrannusGUID.Clear();
             }
 
             void Reset() override
@@ -308,7 +308,7 @@ class boss_krick : public CreatureScript
 
             Creature* GetIck()
             {
-                return ObjectAccessor::GetCreature(*me, _instanceScript->GetData64(DATA_ICK));
+                return ObjectAccessor::GetCreature(*me, _instanceScript->GetGuidData(DATA_ICK));
             }
 
             void KilledUnit(Unit* victim) override
@@ -333,7 +333,7 @@ class boss_krick : public CreatureScript
             {
                 if (actionId == ACTION_OUTRO)
                 {
-                    Creature* tyrannusPtr = ObjectAccessor::GetCreature(*me, _instanceScript->GetData64(DATA_TYRANNUS_EVENT));
+                    Creature* tyrannusPtr = ObjectAccessor::GetCreature(*me, _instanceScript->GetGuidData(DATA_TYRANNUS_EVENT));
                     if (tyrannusPtr)
                         tyrannusPtr->NearTeleportTo(outroPos[1].GetPositionX(), outroPos[1].GetPositionY(), outroPos[1].GetPositionZ(), outroPos[1].GetOrientation());
                     else
@@ -369,7 +369,7 @@ class boss_krick : public CreatureScript
                     {
                         case EVENT_OUTRO_1:
                         {
-                            if (Creature* temp = ObjectAccessor::GetCreature(*me, _instanceScript->GetData64(DATA_JAINA_SYLVANAS_1)))
+                            if (Creature* temp = ObjectAccessor::GetCreature(*me, _instanceScript->GetGuidData(DATA_JAINA_SYLVANAS_1)))
                                 temp->DespawnOrUnsummon();
 
                             Creature* jainaOrSylvanas = NULL;
@@ -417,7 +417,7 @@ class boss_krick : public CreatureScript
                             _events.ScheduleEvent(EVENT_OUTRO_6, 1000);
                             break;
                         case EVENT_OUTRO_6:
-                            if (Creature* tyrannus = ObjectAccessor::GetCreature(*me, _instanceScript->GetData64(DATA_TYRANNUS_EVENT)))
+                            if (Creature* tyrannus = ObjectAccessor::GetCreature(*me, _instanceScript->GetGuidData(DATA_TYRANNUS_EVENT)))
                             {
                                 tyrannus->SetSpeed(MOVE_FLIGHT, 3.5f, true);
                                 tyrannus->GetMotionMaster()->MovePoint(1, outroPos[4]);
@@ -494,8 +494,8 @@ class boss_krick : public CreatureScript
             EventMap _events;
 
             KrickPhase _phase;
-            uint64 _outroNpcGUID;
-            uint64 _tyrannusGUID;
+            ObjectGuid _outroNpcGUID;
+            ObjectGuid _tyrannusGUID;
         };
 
         CreatureAI* GetAI(Creature* creature) const override
diff --git a/src/server/scripts/Northrend/FrozenHalls/PitOfSaron/boss_scourgelord_tyrannus.cpp b/src/server/scripts/Northrend/FrozenHalls/PitOfSaron/boss_scourgelord_tyrannus.cpp
index f392b21b173..c2b1b91a200 100644
--- a/src/server/scripts/Northrend/FrozenHalls/PitOfSaron/boss_scourgelord_tyrannus.cpp
+++ b/src/server/scripts/Northrend/FrozenHalls/PitOfSaron/boss_scourgelord_tyrannus.cpp
@@ -153,7 +153,7 @@ class boss_tyrannus : public CreatureScript
 
             Creature* GetRimefang()
             {
-                return ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_RIMEFANG));
+                return ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_RIMEFANG));
             }
 
             void EnterCombat(Unit* /*who*/) override
@@ -235,7 +235,7 @@ class boss_tyrannus : public CreatureScript
                             me->GetMotionMaster()->MovePoint(0, miscPos);
                             break;
                         case EVENT_COMBAT_START:
-                            if (Creature* rimefang = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_RIMEFANG)))
+                            if (Creature* rimefang = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_RIMEFANG)))
                                 rimefang->AI()->DoAction(ACTION_START_RIMEFANG);    //set rimefang also infight
                             events.SetPhase(PHASE_COMBAT);
                             me->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
@@ -299,7 +299,7 @@ class boss_rimefang : public CreatureScript
             void Initialize()
             {
                 _currentWaypoint = 0;
-                _hoarfrostTargetGUID = 0;
+                _hoarfrostTargetGUID.Clear();
             }
 
             void Reset() override
@@ -330,7 +330,7 @@ class boss_rimefang : public CreatureScript
                     _EnterEvadeMode();
             }
 
-            void SetGUID(uint64 guid, int32 type) override
+            void SetGUID(ObjectGuid guid, int32 type) override
             {
                 if (type == GUID_HOARFROST)
                 {
@@ -366,7 +366,7 @@ class boss_rimefang : public CreatureScript
                             if (Unit* target = ObjectAccessor::GetUnit(*me, _hoarfrostTargetGUID))
                             {
                                 DoCast(target, SPELL_HOARFROST);
-                                _hoarfrostTargetGUID = 0;
+                                _hoarfrostTargetGUID.Clear();
                             }
                             break;
                         default:
@@ -377,7 +377,7 @@ class boss_rimefang : public CreatureScript
 
         private:
             Vehicle* _vehicle;
-            uint64 _hoarfrostTargetGUID;
+            ObjectGuid _hoarfrostTargetGUID;
             EventMap _events;
             uint8 _currentWaypoint;
         };
@@ -391,7 +391,7 @@ class boss_rimefang : public CreatureScript
 class player_overlord_brandAI : public PlayerAI
 {
     public:
-        player_overlord_brandAI(Player* player, uint64 casterGUID) : PlayerAI(player), _tyrannusGUID(casterGUID) { }
+        player_overlord_brandAI(Player* player, ObjectGuid casterGUID) : PlayerAI(player), _tyrannusGUID(casterGUID) { }
 
         void DamageDealt(Unit* /*victim*/, uint32& damage, DamageEffectType /*damageType*/) override
         {
@@ -409,7 +409,7 @@ class player_overlord_brandAI : public PlayerAI
         void UpdateAI(uint32 /*diff*/) override { }
 
     private:
-        uint64 _tyrannusGUID;
+        ObjectGuid _tyrannusGUID;
 };
 
 class spell_tyrannus_overlord_brand : public SpellScriptLoader
@@ -480,7 +480,7 @@ class spell_tyrannus_mark_of_rimefang : public SpellScriptLoader
                     return;
 
                 if (InstanceScript* instance = caster->GetInstanceScript())
-                    if (Creature* rimefang = ObjectAccessor::GetCreature(*caster, instance->GetData64(DATA_RIMEFANG)))
+                    if (Creature* rimefang = ObjectAccessor::GetCreature(*caster, instance->GetGuidData(DATA_RIMEFANG)))
                         rimefang->AI()->SetGUID(GetTarget()->GetGUID(), GUID_HOARFROST);
             }
 
@@ -545,7 +545,7 @@ class at_tyrannus_event_starter : public AreaTriggerScript
                 return false;
 
             if (instance->GetBossState(DATA_TYRANNUS) != IN_PROGRESS && instance->GetBossState(DATA_TYRANNUS) != DONE)
-                if (Creature* tyrannus = ObjectAccessor::GetCreature(*player, instance->GetData64(DATA_TYRANNUS)))
+                if (Creature* tyrannus = ObjectAccessor::GetCreature(*player, instance->GetGuidData(DATA_TYRANNUS)))
                 {
                     tyrannus->AI()->DoAction(ACTION_START_INTRO);
                     return true;
diff --git a/src/server/scripts/Northrend/FrozenHalls/PitOfSaron/instance_pit_of_saron.cpp b/src/server/scripts/Northrend/FrozenHalls/PitOfSaron/instance_pit_of_saron.cpp
index d829b98f926..29fbc0be2b3 100644
--- a/src/server/scripts/Northrend/FrozenHalls/PitOfSaron/instance_pit_of_saron.cpp
+++ b/src/server/scripts/Northrend/FrozenHalls/PitOfSaron/instance_pit_of_saron.cpp
@@ -44,15 +44,7 @@ class instance_pit_of_saron : public InstanceMapScript
                 SetHeaders(DataHeader);
                 SetBossNumber(EncounterCount);
                 LoadDoorData(Doors);
-                _garfrostGUID = 0;
-                _krickGUID = 0;
-                _ickGUID = 0;
-                _tyrannusGUID = 0;
-                _rimefangGUID = 0;
-                _jainaOrSylvanas1GUID = 0;
-                _jainaOrSylvanas2GUID = 0;
                 _teamInInstance = 0;
-                _tyrannusEventGUID = 0;
             }
 
             void OnPlayerEnter(Player* player) override
@@ -239,7 +231,7 @@ class instance_pit_of_saron : public InstanceMapScript
                 return 0;
             }
 
-            uint64 GetData64(uint32 type) const override
+            ObjectGuid GetGuidData(uint32 type) const override
             {
                 switch (type)
                 {
@@ -263,19 +255,19 @@ class instance_pit_of_saron : public InstanceMapScript
                         break;
                 }
 
-                return 0;
+                return ObjectGuid::Empty;
             }
 
         private:
-            uint64 _garfrostGUID;
-            uint64 _krickGUID;
-            uint64 _ickGUID;
-            uint64 _tyrannusGUID;
-            uint64 _rimefangGUID;
+            ObjectGuid _garfrostGUID;
+            ObjectGuid _krickGUID;
+            ObjectGuid _ickGUID;
+            ObjectGuid _tyrannusGUID;
+            ObjectGuid _rimefangGUID;
 
-            uint64 _tyrannusEventGUID;
-            uint64 _jainaOrSylvanas1GUID;
-            uint64 _jainaOrSylvanas2GUID;
+            ObjectGuid _tyrannusEventGUID;
+            ObjectGuid _jainaOrSylvanas1GUID;
+            ObjectGuid _jainaOrSylvanas2GUID;
 
             uint32 _teamInInstance;
         };
diff --git a/src/server/scripts/Northrend/FrozenHalls/PitOfSaron/pit_of_saron.cpp b/src/server/scripts/Northrend/FrozenHalls/PitOfSaron/pit_of_saron.cpp
index 4d2ebd44db8..062d6a13390 100644
--- a/src/server/scripts/Northrend/FrozenHalls/PitOfSaron/pit_of_saron.cpp
+++ b/src/server/scripts/Northrend/FrozenHalls/PitOfSaron/pit_of_saron.cpp
@@ -230,7 +230,7 @@ class spell_trash_npc_glacial_strike : public SpellScriptLoader
             {
                 if (GetTarget()->IsFullHealth())
                 {
-                    GetTarget()->RemoveAura(GetId(), 0, 0, AURA_REMOVE_BY_ENEMY_SPELL);
+                    GetTarget()->RemoveAura(GetId(), ObjectGuid::Empty, 0, AURA_REMOVE_BY_ENEMY_SPELL);
                     PreventDefaultAction();
                 }
             }
diff --git a/src/server/scripts/Northrend/Gundrak/boss_drakkari_colossus.cpp b/src/server/scripts/Northrend/Gundrak/boss_drakkari_colossus.cpp
index 001f19679c4..f1fececfa7f 100644
--- a/src/server/scripts/Northrend/Gundrak/boss_drakkari_colossus.cpp
+++ b/src/server/scripts/Northrend/Gundrak/boss_drakkari_colossus.cpp
@@ -24,6 +24,13 @@
 #include "gundrak.h"
 #include "SpellInfo.h"
 
+enum Texts
+{
+    // Drakkari Elemental
+    EMOTE_MOJO                                    = 0,
+    EMOTE_ACTIVATE_ALTAR                          = 1
+};
+
 enum Spells
 {
     SPELL_EMERGE                                  = 54850,
@@ -80,7 +87,7 @@ class boss_drakkari_colossus : public CreatureScript
 
         struct boss_drakkari_colossusAI : public BossAI
         {
-            boss_drakkari_colossusAI(Creature* creature) : BossAI(creature, DATA_DRAKKARI_COLOSSUS_EVENT)
+            boss_drakkari_colossusAI(Creature* creature) : BossAI(creature, DATA_DRAKKARI_COLOSSUS)
             {
                 Initialize();
                 me->SetReactState(REACT_PASSIVE);
@@ -103,41 +110,20 @@ class boss_drakkari_colossus : public CreatureScript
                     me->RemoveAura(SPELL_FREEZE_ANIM);
                 }
 
-                //events.Reset(); -> done in _Reset();
                 events.ScheduleEvent(EVENT_MIGHTY_BLOW, urand(10000, 30000));
 
                 Initialize();
-
-                // Note: This should not be called, but before use SetBossState function we should use BossAI
-                //        in all the bosses of the instance
-                instance->SetData(DATA_DRAKKARI_COLOSSUS_EVENT, NOT_STARTED);
             }
 
             void EnterCombat(Unit* /*who*/) override
             {
                 _EnterCombat();
-
                 me->RemoveAura(SPELL_FREEZE_ANIM);
-
-                // Note: This should not be called, but before use SetBossState function we should use BossAI
-                //        in all the bosses of the instance
-                instance->SetData(DATA_DRAKKARI_COLOSSUS_EVENT, IN_PROGRESS);
             }
 
             void JustDied(Unit* /*killer*/) override
             {
                 _JustDied();
-
-                // Note: This should not be called, but before use SetBossState function we should use BossAI
-                //        in all the bosses of the instance
-                instance->SetData(DATA_DRAKKARI_COLOSSUS_EVENT, DONE);
-            }
-
-            void JustReachedHome() override
-            {
-                // Note: This should not be called, but before use SetBossState function we should use BossAI
-                //        in all the bosses of the instance
-                instance->SetData(DATA_DRAKKARI_COLOSSUS_EVENT, FAIL);
             }
 
             void DoAction(int32 action) override
@@ -181,13 +167,12 @@ class boss_drakkari_colossus : public CreatureScript
                 if (phase == COLOSSUS_PHASE_NORMAL ||
                     phase == COLOSSUS_PHASE_FIRST_ELEMENTAL_SUMMON)
                 {
-                    if (HealthBelowPct( phase == COLOSSUS_PHASE_NORMAL ? 50 : 5))
+                    if (HealthBelowPct(phase == COLOSSUS_PHASE_NORMAL ? 50 : 5))
                     {
                         damage = 0;
                         phase = (phase == COLOSSUS_PHASE_NORMAL ? COLOSSUS_PHASE_FIRST_ELEMENTAL_SUMMON : COLOSSUS_PHASE_SECOND_ELEMENTAL_SUMMON);
                         DoAction(ACTION_FREEZE_COLOSSUS);
                         DoAction(ACTION_SUMMON_ELEMENTAL);
-
                     }
                 }
             }
@@ -248,7 +233,7 @@ class boss_drakkari_colossus : public CreatureScript
 
         CreatureAI* GetAI(Creature* creature) const override
         {
-            return GetInstanceAI<boss_drakkari_colossusAI>(creature);
+            return GetGundrakAI<boss_drakkari_colossusAI>(creature);
         }
 };
 
@@ -275,10 +260,9 @@ class boss_drakkari_elemental : public CreatureScript
 
             void JustDied(Unit* killer) override
             {
-                if (killer == me)
-                    return;
+                Talk(EMOTE_ACTIVATE_ALTAR);
 
-                if (Creature* colossus = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_DRAKKARI_COLOSSUS)))
+                if (Creature* colossus = instance->GetCreature(DATA_DRAKKARI_COLOSSUS))
                     killer->Kill(colossus);
             }
 
@@ -313,8 +297,9 @@ class boss_drakkari_elemental : public CreatureScript
                 switch (action)
                 {
                     case ACTION_RETURN_TO_COLOSSUS:
+                        Talk(EMOTE_MOJO);
                         DoCast(SPELL_SURGE_VISUAL);
-                        if (Creature* colossus = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_DRAKKARI_COLOSSUS)))
+                        if (Creature* colossus = instance->GetCreature(DATA_DRAKKARI_COLOSSUS))
                             // what if the elemental is more than 80 yards from drakkari colossus ?
                             DoCast(colossus, SPELL_MERGE, true);
                         break;
@@ -323,11 +308,11 @@ class boss_drakkari_elemental : public CreatureScript
 
             void DamageTaken(Unit* /*attacker*/, uint32& damage) override
             {
-                if (HealthBelowPct(50) && instance)
+                if (HealthBelowPct(50))
                 {
-                    if (Creature* colossus = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_DRAKKARI_COLOSSUS)))
+                    if (Creature* colossus = instance->GetCreature(DATA_DRAKKARI_COLOSSUS))
                     {
-                        if (colossus->AI()->GetData(DATA_COLOSSUS_PHASE) ==  COLOSSUS_PHASE_FIRST_ELEMENTAL_SUMMON)
+                        if (colossus->AI()->GetData(DATA_COLOSSUS_PHASE) == COLOSSUS_PHASE_FIRST_ELEMENTAL_SUMMON)
                         {
                             damage = 0;
 
@@ -375,7 +360,7 @@ class boss_drakkari_elemental : public CreatureScript
 
         CreatureAI* GetAI(Creature* creature) const override
         {
-            return GetInstanceAI<boss_drakkari_elementalAI>(creature);
+            return GetGundrakAI<boss_drakkari_elementalAI>(creature);
         }
 };
 
@@ -386,7 +371,7 @@ public:
 
     CreatureAI* GetAI(Creature* creature) const override
     {
-        return GetInstanceAI<npc_living_mojoAI>(creature);
+        return GetGundrakAI<npc_living_mojoAI>(creature);
     }
 
     struct npc_living_mojoAI : public ScriptedAI
@@ -429,7 +414,7 @@ public:
 
             if (id == 1)
             {
-                if (Creature* colossus = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_DRAKKARI_COLOSSUS)))
+                if (Creature* colossus = instance->GetCreature(DATA_DRAKKARI_COLOSSUS))
                 {
                     colossus->AI()->DoAction(ACTION_UNFREEZE_COLOSSUS);
                     if (!colossus->AI()->GetData(DATA_INTRO_DONE))
@@ -446,13 +431,11 @@ public:
                 return;
 
             // we do this checks to see if the creature is one of the creatures that sorround the boss
-            if (Creature* colossus = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_DRAKKARI_COLOSSUS)))
+            if (Creature* colossus = instance->GetCreature(DATA_DRAKKARI_COLOSSUS))
             {
                 Position homePosition = me->GetHomePosition();
 
-                Position colossusHomePosition = colossus->GetHomePosition();
-
-                float distance = homePosition.GetExactDist(colossusHomePosition.GetPositionX(), colossusHomePosition.GetPositionY(), colossusHomePosition.GetPositionZ());
+                float distance = homePosition.GetExactDist(&colossus->GetHomePosition());
 
                 if (distance < 12.0f)
                 {
@@ -484,6 +467,7 @@ public:
 
             DoMeleeAttackIfReady();
         }
+
     private:
         InstanceScript* instance;
         uint32 mojoWaveTimer;
diff --git a/src/server/scripts/Northrend/Gundrak/boss_eck.cpp b/src/server/scripts/Northrend/Gundrak/boss_eck.cpp
index 9f8cc818958..baf749fec51 100644
--- a/src/server/scripts/Northrend/Gundrak/boss_eck.cpp
+++ b/src/server/scripts/Northrend/Gundrak/boss_eck.cpp
@@ -19,13 +19,18 @@
 #include "ScriptedCreature.h"
 #include "gundrak.h"
 
+enum Texts
+{
+    EMOTE_SPAWN                 = 0
+};
+
 enum Spells
 {
-    SPELL_ECK_BERSERK                             = 55816, //Eck goes berserk, increasing his attack speed by 150% and all damage he deals by 500%.
-    SPELL_ECK_BITE                                = 55813, //Eck bites down hard, inflicting 150% of his normal damage to an enemy.
-    SPELL_ECK_SPIT                                = 55814, //Eck spits toxic bile at enemies in a cone in front of him, inflicting 2970 Nature damage and draining 220 mana every 1 sec for 3 sec.
-    SPELL_ECK_SPRING_1                            = 55815, //Eck leaps at a distant target.  --> Drops aggro and charges a random player. Tank can simply taunt him back.
-    SPELL_ECK_SPRING_2                            = 55837  //Eck leaps at a distant target.
+    SPELL_ECK_BERSERK           = 55816, // Eck goes berserk, increasing his attack speed by 150% and all damage he deals by 500%.
+    SPELL_ECK_BITE              = 55813, // Eck bites down hard, inflicting 150% of his normal damage to an enemy.
+    SPELL_ECK_SPIT              = 55814, // Eck spits toxic bile at enemies in a cone in front of him, inflicting 2970 Nature damage and draining 220 mana every 1 sec for 3 sec.
+    SPELL_ECK_SPRING_1          = 55815, // Eck leaps at a distant target.  --> Drops aggro and charges a random player. Tank can simply taunt him back.
+    SPELL_ECK_SPRING_2          = 55837  // Eck leaps at a distant target.
 };
 
 enum Events
@@ -38,79 +43,80 @@ enum Events
 
 class boss_eck : public CreatureScript
 {
-public:
-    boss_eck() : CreatureScript("boss_eck") { }
+    public:
+        boss_eck() : CreatureScript("boss_eck") { }
 
-    struct boss_eckAI : public BossAI
-    {
-        boss_eckAI(Creature* creature) : BossAI(creature, DATA_ECK_THE_FEROCIOUS_EVENT)
+        struct boss_eckAI : public BossAI
         {
-            Initialize();
-        }
+            boss_eckAI(Creature* creature) : BossAI(creature, DATA_ECK_THE_FEROCIOUS)
+            {
+                Initialize();
+                Talk(EMOTE_SPAWN);
+            }
 
-        void Initialize()
-        {
-            Berserk = false;
-        }
+            void Initialize()
+            {
+                _berserk = false;
+            }
 
-        void Reset() override
-        {
-            _Reset();
-            Initialize();
-        }
+            void Reset() override
+            {
+                _Reset();
+                Initialize();
+            }
 
-        void EnterCombat(Unit* /*who*/) override
-        {
-            _EnterCombat();
-            events.ScheduleEvent(EVENT_BITE, 5 * IN_MILLISECONDS);
-            events.ScheduleEvent(EVENT_SPIT, 10 * IN_MILLISECONDS);
-            events.ScheduleEvent(EVENT_SPRING, 8 * IN_MILLISECONDS);
-            events.ScheduleEvent(EVENT_BERSERK, urand(60 * IN_MILLISECONDS, 90 * IN_MILLISECONDS)); //60-90 secs according to wowwiki
-        }
+            void EnterCombat(Unit* /*who*/) override
+            {
+                _EnterCombat();
+                events.ScheduleEvent(EVENT_BITE, 5 * IN_MILLISECONDS);
+                events.ScheduleEvent(EVENT_SPIT, 10 * IN_MILLISECONDS);
+                events.ScheduleEvent(EVENT_SPRING, 8 * IN_MILLISECONDS);
+                events.ScheduleEvent(EVENT_BERSERK, urand(60 * IN_MILLISECONDS, 90 * IN_MILLISECONDS)); // 60-90 secs according to wowwiki
+            }
 
-        void DamageTaken(Unit* /*attacker*/, uint32& damage) override
-        {
-            if (me->HealthBelowPctDamaged(20, damage) && !Berserk)
+            void DamageTaken(Unit* /*attacker*/, uint32& damage) override
             {
-                events.RescheduleEvent(EVENT_BERSERK, 1000);
-                Berserk = true;
+                if (!_berserk && me->HealthBelowPctDamaged(20, damage))
+                {
+                    events.RescheduleEvent(EVENT_BERSERK, 1000);
+                    _berserk = true;
+                }
             }
-        }
 
-        void ExecuteEvent(uint32 eventId) override
-        {
-            switch (eventId)
+            void ExecuteEvent(uint32 eventId) override
             {
-                case EVENT_BITE:
-                    DoCastVictim(SPELL_ECK_BITE);
-                    events.ScheduleEvent(EVENT_BITE, urand(8 * IN_MILLISECONDS, 12 * IN_MILLISECONDS));
-                    break;
-                case EVENT_SPIT:
-                    DoCastVictim(SPELL_ECK_SPIT);
-                    events.ScheduleEvent(EVENT_SPIT, urand(6 * IN_MILLISECONDS, 14 * IN_MILLISECONDS));
-                    break;
-                case EVENT_SPRING:
-                    if (Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 1, 35.0f, true))
-                        DoCast(target, RAND(SPELL_ECK_SPRING_1, SPELL_ECK_SPRING_2));
-                    events.ScheduleEvent(EVENT_SPRING, urand(5 * IN_MILLISECONDS, 10 * IN_MILLISECONDS));
-                    break;
-                case EVENT_BERSERK:
-                    DoCast(me, SPELL_ECK_BERSERK);
-                    Berserk = true;
-                    break;
-                default:
-                    break;
+                switch (eventId)
+                {
+                    case EVENT_BITE:
+                        DoCastVictim(SPELL_ECK_BITE);
+                        events.ScheduleEvent(EVENT_BITE, urand(8 * IN_MILLISECONDS, 12 * IN_MILLISECONDS));
+                        break;
+                    case EVENT_SPIT:
+                        DoCastVictim(SPELL_ECK_SPIT);
+                        events.ScheduleEvent(EVENT_SPIT, urand(6 * IN_MILLISECONDS, 14 * IN_MILLISECONDS));
+                        break;
+                    case EVENT_SPRING:
+                        if (Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 1, 35.0f, true))
+                            DoCast(target, RAND(SPELL_ECK_SPRING_1, SPELL_ECK_SPRING_2));
+                        events.ScheduleEvent(EVENT_SPRING, urand(5 * IN_MILLISECONDS, 10 * IN_MILLISECONDS));
+                        break;
+                    case EVENT_BERSERK:
+                        DoCast(me, SPELL_ECK_BERSERK);
+                        _berserk = true;
+                        break;
+                    default:
+                        break;
+                }
             }
-        }
 
         private:
-            bool Berserk;
-    };
+            bool _berserk;
+        };
 
-    CreatureAI* GetAI(Creature* creature) const override
-    {
-        return GetInstanceAI<boss_eckAI>(creature);
-    }
+        CreatureAI* GetAI(Creature* creature) const override
+        {
+            return GetGundrakAI<boss_eckAI>(creature);
+        }
 };
 
 void AddSC_boss_eck()
diff --git a/src/server/scripts/Northrend/Gundrak/boss_gal_darah.cpp b/src/server/scripts/Northrend/Gundrak/boss_gal_darah.cpp
index 22e7ac280fd..c9ea3a26f4d 100644
--- a/src/server/scripts/Northrend/Gundrak/boss_gal_darah.cpp
+++ b/src/server/scripts/Northrend/Gundrak/boss_gal_darah.cpp
@@ -17,281 +17,272 @@
 
 #include "ScriptMgr.h"
 #include "ScriptedCreature.h"
+#include "SpellScript.h"
 #include "gundrak.h"
 
-//Spells
+/// @todo: implement stampede
+
 enum Spells
 {
-    SPELL_ENRAGE                                  = 55285,
-    H_SPELL_ENRAGE                                = 59828,
-    SPELL_IMPALING_CHARGE                         = 54956,
-    H_SPELL_IMPALING_CHARGE                       = 59827,
-    SPELL_STOMP                                   = 55292,
-    H_SPELL_STOMP                                 = 59829,
-    SPELL_PUNCTURE                                = 55276,
-    H_SPELL_PUNCTURE                              = 59826,
-    SPELL_STAMPEDE                                = 55218,
-    SPELL_WHIRLING_SLASH                          = 55250,
-    H_SPELL_WHIRLING_SLASH                        = 59824,
+    SPELL_IMPALING_CHARGE                   = 54956,
+    SPELL_IMPALING_CHARGE_CONTROL_VEHICLE   = 54958,
+    SPELL_STOMP                             = 55292,
+    SPELL_PUNCTURE                          = 55276,
+    SPELL_STAMPEDE                          = 55218,
+    SPELL_WHIRLING_SLASH                    = 55250,
+    SPELL_ENRAGE                            = 55285,
+    SPELL_HEARTH_BEAM_VISUAL                = 54988,
+    SPELL_TRANSFORM_RHINO                   = 55297,
+    SPELL_TRANSFORM_BACK                    = 55299
 };
 
-//Yells
 enum Yells
 {
-    SAY_AGGRO                                     = 0,
-    SAY_SLAY                                      = 1,
-    SAY_DEATH                                     = 2,
-    SAY_SUMMON_RHINO                              = 3,
-    SAY_TRANSFORM_1                               = 4,
-    SAY_TRANSFORM_2                               = 5
+    SAY_AGGRO                               = 0,
+    SAY_SLAY                                = 1,
+    SAY_DEATH                               = 2,
+    SAY_SUMMON_RHINO                        = 3,
+    SAY_TRANSFORM_1                         = 4,
+    SAY_TRANSFORM_2                         = 5,
+    EMOTE_IMPALE                            = 6
 };
 
-enum Displays
+enum CombatPhase
 {
-    DISPLAY_RHINO                                 = 26265,
-    DISPLAY_TROLL                                 = 27061
+    PHASE_TROLL                             = 1,
+    PHASE_RHINO                             = 2
 };
 
-enum CombatPhase
+enum Events
 {
-    TROLL,
-    RHINO
+    EVENT_IMPALING_CHARGE                   = 1,
+    EVENT_STOMP,
+    EVENT_PUNCTURE,
+    EVENT_STAMPEDE,
+    EVENT_WHIRLING_SLASH,
+    EVENT_ENRAGE,
+    EVENT_TRANSFORM,
+
+    EVENT_GROUP_TROLL                       = PHASE_TROLL,
+    EVENT_GROUP_RHINO                       = PHASE_RHINO
 };
 
 enum Misc
 {
-    DATA_SHARE_THE_LOVE                         = 1
+    DATA_SHARE_THE_LOVE                     = 1
 };
 
 class boss_gal_darah : public CreatureScript
 {
-public:
-    boss_gal_darah() : CreatureScript("boss_gal_darah") { }
-
-    CreatureAI* GetAI(Creature* creature) const override
-    {
-        return GetInstanceAI<boss_gal_darahAI>(creature);
-    }
+    public:
+        boss_gal_darah() : CreatureScript("boss_gal_darah") { }
 
-    struct boss_gal_darahAI : public ScriptedAI
-    {
-        boss_gal_darahAI(Creature* creature) : ScriptedAI(creature)
+        struct boss_gal_darahAI : public BossAI
         {
-            Initialize();
-            instance = creature->GetInstanceScript();
-        }
+            boss_gal_darahAI(Creature* creature) : BossAI(creature, DATA_GAL_DARAH)
+            {
+                Initialize();
+            }
 
-        void Initialize()
-        {
-            uiStampedeTimer = 10 * IN_MILLISECONDS;
-            uiWhirlingSlashTimer = 21 * IN_MILLISECONDS;
-            uiPunctureTimer = 10 * IN_MILLISECONDS;
-            uiEnrageTimer = 15 * IN_MILLISECONDS;
-            uiImpalingChargeTimer = 21 * IN_MILLISECONDS;
-            uiStompTimer = 25 * IN_MILLISECONDS;
-            uiTransformationTimer = 9 * IN_MILLISECONDS;
-            uiPhaseCounter = 0;
-
-            shareTheLove = 0;
-            bStartOfTransformation = true;
-            Phase = TROLL;
-        }
+            void Initialize()
+            {
+                _phaseCounter = 0;
+            }
 
-        uint32 uiStampedeTimer;
-        uint32 uiWhirlingSlashTimer;
-        uint32 uiPunctureTimer;
-        uint32 uiEnrageTimer;
-        uint32 uiImpalingChargeTimer;
-        uint32 uiStompTimer;
-        uint32 uiTransformationTimer;
-        std::list<uint64> impaledList;
-        uint8 shareTheLove;
+            void InitializeAI() override
+            {
+                BossAI::InitializeAI();
+                DoCastAOE(SPELL_HEARTH_BEAM_VISUAL, true);
+            }
 
-        CombatPhase Phase;
+            void Reset() override
+            {
+                Initialize();
+                _Reset();
+                impaledPlayers.clear();
+            }
 
-        uint8 uiPhaseCounter;
+            void JustReachedHome() override
+            {
+                _JustReachedHome();
+                DoCastAOE(SPELL_HEARTH_BEAM_VISUAL, true);
+            }
 
-        bool bStartOfTransformation;
+            void EnterCombat(Unit* /*who*/) override
+            {
+                _EnterCombat();
+                Talk(SAY_AGGRO);
 
-        InstanceScript* instance;
+                SetPhase(PHASE_TROLL);
+            }
 
-        void Reset() override
-        {
-            Initialize();
+            void SetPhase(CombatPhase phase)
+            {
+                events.SetPhase(phase);
+                switch (phase)
+                {
+                    case PHASE_TROLL:
+                        events.ScheduleEvent(EVENT_STAMPEDE, 10 * IN_MILLISECONDS, 0, PHASE_TROLL);
+                        events.ScheduleEvent(EVENT_WHIRLING_SLASH, 21 * IN_MILLISECONDS, 0, PHASE_TROLL);
+                        break;
+                    case PHASE_RHINO:
+                        events.ScheduleEvent(EVENT_STOMP, 25 * IN_MILLISECONDS, 0, PHASE_RHINO);
+                        events.ScheduleEvent(EVENT_IMPALING_CHARGE, 21 * IN_MILLISECONDS, 0, PHASE_RHINO);
+                        events.ScheduleEvent(EVENT_ENRAGE, 15 * IN_MILLISECONDS, 0, PHASE_RHINO);
+                        events.ScheduleEvent(EVENT_PUNCTURE, 10 * IN_MILLISECONDS, 0, PHASE_RHINO);
+                        break;
+                }
+            }
 
-            impaledList.clear();
+            void SetGUID(ObjectGuid guid, int32 type /*= 0*/) override
+            {
+                if (type == DATA_SHARE_THE_LOVE)
+                {
+                    if (Unit* target = ObjectAccessor::GetUnit(*me, guid))
+                        Talk(EMOTE_IMPALE, target);
+                    impaledPlayers.insert(guid);
+                }
+            }
 
-            me->SetDisplayId(DISPLAY_TROLL);
+            uint32 GetData(uint32 type) const override
+            {
+                if (type == DATA_SHARE_THE_LOVE)
+                    return impaledPlayers.size();
 
-            instance->SetData(DATA_GAL_DARAH_EVENT, NOT_STARTED);
-        }
+                return 0;
+            }
 
-        void EnterCombat(Unit* /*who*/) override
-        {
-            Talk(SAY_AGGRO);
+            void JustDied(Unit* /*killer*/) override
+            {
+                _JustDied();
+                Talk(SAY_DEATH);
+            }
 
-            instance->SetData(DATA_GAL_DARAH_EVENT, IN_PROGRESS);
-        }
+            void KilledUnit(Unit* victim) override
+            {
+                if (victim->GetTypeId() == TYPEID_PLAYER)
+                    Talk(SAY_SLAY);
+            }
 
-        void UpdateAI(uint32 diff) override
-        {
-            if (!UpdateVictim())
-                return;
+            void SpellHit(Unit* /*caster*/, SpellInfo const* spellInfo) override
+            {
+                if (spellInfo->Id == SPELL_TRANSFORM_BACK)
+                    me->RemoveAurasDueToSpell(SPELL_TRANSFORM_RHINO);
+            }
 
-            switch (Phase)
+            void ExecuteEvent(uint32 eventId) override
             {
-                case TROLL:
-                    if (uiPhaseCounter == 2)
-                    {
-                        if (uiTransformationTimer <= diff)
+                switch (eventId)
+                {
+                    case EVENT_IMPALING_CHARGE:
+                        if (Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 0, 60.0f, true))
+                            DoCast(target, SPELL_IMPALING_CHARGE);
+                        if (++_phaseCounter >= 2)
+                            events.ScheduleEvent(EVENT_TRANSFORM, 5 * IN_MILLISECONDS);
+                        events.ScheduleEvent(eventId, 31 * IN_MILLISECONDS, 0, PHASE_RHINO);
+                        break;
+                    case EVENT_STOMP:
+                        DoCastAOE(SPELL_STOMP);
+                        events.ScheduleEvent(eventId, 20 * IN_MILLISECONDS, 0, PHASE_RHINO);
+                        break;
+                    case EVENT_PUNCTURE:
+                        DoCastVictim(SPELL_PUNCTURE);
+                        events.ScheduleEvent(eventId, 8 * IN_MILLISECONDS, 0, PHASE_RHINO);
+                        break;
+                    case EVENT_STAMPEDE:
+                        Talk(SAY_SUMMON_RHINO);
+                        DoCast(me, SPELL_STAMPEDE);
+                        events.ScheduleEvent(eventId, 15 * IN_MILLISECONDS, 0, PHASE_TROLL);
+                        break;
+                    case EVENT_WHIRLING_SLASH:
+                        DoCastVictim(SPELL_WHIRLING_SLASH);
+                        if (++_phaseCounter >= 2)
+                            events.ScheduleEvent(EVENT_TRANSFORM, 5 * IN_MILLISECONDS);
+                        events.ScheduleEvent(eventId, 21 * IN_MILLISECONDS, 0, PHASE_TROLL);
+                        break;
+                    case EVENT_ENRAGE:
+                        DoCast(me, SPELL_ENRAGE);
+                        events.ScheduleEvent(eventId, 20 * IN_MILLISECONDS, 0, PHASE_RHINO);
+                        break;
+                    case EVENT_TRANSFORM:
+                        if (events.IsInPhase(PHASE_TROLL))
                         {
-                            me->SetDisplayId(DISPLAY_RHINO);
-                            Phase = RHINO;
-                            uiPhaseCounter = 0;
                             Talk(SAY_TRANSFORM_1);
-                            uiTransformationTimer = 5*IN_MILLISECONDS;
-                            bStartOfTransformation = true;
-                            me->ClearUnitState(UNIT_STATE_STUNNED|UNIT_STATE_ROOT);
-                            me->SetReactState(REACT_AGGRESSIVE);
+                            DoCast(me, SPELL_TRANSFORM_RHINO);
+                            SetPhase(PHASE_RHINO);
                         }
-                        else
+                        else if (events.IsInPhase(PHASE_RHINO))
                         {
-                            uiTransformationTimer -= diff;
-
-                            if (bStartOfTransformation)
-                            {
-                                bStartOfTransformation = false;
-                                me->AddUnitState(UNIT_STATE_STUNNED|UNIT_STATE_ROOT);
-                                me->SetReactState(REACT_PASSIVE);
-                            }
-                        }
-                    }
-                    else
-                    {
-                        if (uiStampedeTimer <= diff)
-                        {
-                            DoCast(me, SPELL_STAMPEDE);
-                            Talk(SAY_SUMMON_RHINO);
-                            uiStampedeTimer = 15*IN_MILLISECONDS;
-                        } else uiStampedeTimer -= diff;
-
-                        if (uiWhirlingSlashTimer <= diff)
-                        {
-                            DoCastVictim(SPELL_WHIRLING_SLASH);
-                            uiWhirlingSlashTimer = 21*IN_MILLISECONDS;
-                            ++uiPhaseCounter;
-                        } else uiWhirlingSlashTimer -= diff;
-                    }
-                break;
-                case RHINO:
-                    if (uiPhaseCounter == 2)
-                    {
-                        if (uiTransformationTimer <= diff)
-                        {
-                            me->SetDisplayId(DISPLAY_TROLL);
-                            Phase = TROLL;
-                            uiPhaseCounter = 0;
                             Talk(SAY_TRANSFORM_2);
-                            uiTransformationTimer = 9*IN_MILLISECONDS;
-                            bStartOfTransformation = true;
-                            me->ClearUnitState(UNIT_STATE_STUNNED|UNIT_STATE_ROOT);
-                            me->SetReactState(REACT_AGGRESSIVE);
+                            DoCast(me, SPELL_TRANSFORM_BACK);
+                            SetPhase(PHASE_TROLL);
                         }
-                        else
-                        {
-                            uiTransformationTimer -= diff;
-
-                            if (bStartOfTransformation)
-                            {
-                                bStartOfTransformation = false;
-                                me->AddUnitState(UNIT_STATE_STUNNED|UNIT_STATE_ROOT);
-                                me->SetReactState(REACT_PASSIVE);
-                            }
-                        }
-                    }
-                    else
-                    {
-                        if (uiPunctureTimer <= diff)
-                        {
-                            DoCastVictim(SPELL_PUNCTURE);
-                            uiPunctureTimer = 8*IN_MILLISECONDS;
-                        } else uiPunctureTimer -= diff;
-
-                        if (uiEnrageTimer <= diff)
-                        {
-                            DoCastVictim(SPELL_ENRAGE);
-                            uiEnrageTimer = 20*IN_MILLISECONDS;
-                        } else uiEnrageTimer -= diff;
-
-                        if (uiStompTimer <= diff)
-                        {
-                            DoCastVictim(SPELL_STOMP);
-                            uiStompTimer = 20*IN_MILLISECONDS;
-                        } else uiStompTimer -= diff;
-
-                        if (uiImpalingChargeTimer <= diff)
-                        {
-                            if (Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 0, 100, true))
-                            {
-                                DoCast(target, SPELL_IMPALING_CHARGE);
-                                CheckAchievement(target->GetGUID());
-                            }
-                            uiImpalingChargeTimer = 31*IN_MILLISECONDS;
-                            ++uiPhaseCounter;
-                        } else uiImpalingChargeTimer -= diff;
-                    }
-                break;
+                        _phaseCounter = 0;
+                        break;
+                    default:
+                        break;
+                }
             }
 
-            DoMeleeAttackIfReady();
-        }
+        private:
+            std::set<uint64> impaledPlayers;
+            uint8 _phaseCounter;
+        };
 
-        // 5 UNIQUE party members
-        void CheckAchievement(uint64 guid)
+        CreatureAI* GetAI(Creature* creature) const override
         {
-            bool playerExists = false;
-            for (std::list<uint64>::iterator itr = impaledList.begin(); itr != impaledList.end(); ++itr)
-                if (guid != *itr)
-                    playerExists = true;
-
-            if (playerExists)
-                ++shareTheLove;
-
-            impaledList.push_back(guid);
+            return GetGundrakAI<boss_gal_darahAI>(creature);
         }
+};
 
-        uint32 GetData(uint32 type) const override
+// 54956, 59827 - Impaling Charge
+class spell_gal_darah_impaling_charge : public SpellScriptLoader
+{
+    public:
+        spell_gal_darah_impaling_charge() : SpellScriptLoader("spell_gal_darah_impaling_charge") { }
+
+        class spell_gal_darah_impaling_charge_SpellScript : public SpellScript
         {
-            if (type == DATA_SHARE_THE_LOVE)
-                return shareTheLove;
+            PrepareSpellScript(spell_gal_darah_impaling_charge_SpellScript);
 
-            return 0;
-        }
+            bool Validate(SpellInfo const* /*spellInfo*/) override
+            {
+                if (!sSpellMgr->GetSpellInfo(SPELL_IMPALING_CHARGE_CONTROL_VEHICLE))
+                    return false;
+                return true;
+            }
 
-        void JustDied(Unit* /*killer*/) override
-        {
-            Talk(SAY_DEATH);
+            bool Load() override
+            {
+                return GetCaster()->GetVehicleKit() && GetCaster()->GetEntry() == NPC_GAL_DARAH;
+            }
 
-            instance->SetData(DATA_GAL_DARAH_EVENT, DONE);
-        }
+            void HandleScript(SpellEffIndex /*effIndex*/)
+            {
+                if (Unit* target = GetHitUnit())
+                {
+                    Unit* caster = GetCaster();
+                    target->CastSpell(caster, SPELL_IMPALING_CHARGE_CONTROL_VEHICLE, true);
+                    caster->ToCreature()->AI()->SetGUID(target->GetGUID(), DATA_SHARE_THE_LOVE);
+                }
+            }
 
-        void KilledUnit(Unit* victim) override
-        {
-            if (victim->GetTypeId() != TYPEID_PLAYER)
-                return;
+            void Register() override
+            {
+                OnEffectHitTarget += SpellEffectFn(spell_gal_darah_impaling_charge_SpellScript::HandleScript, EFFECT_0, SPELL_EFFECT_CHARGE);
+            }
+        };
 
-            Talk(SAY_SLAY);
+        SpellScript* GetSpellScript() const override
+        {
+            return new spell_gal_darah_impaling_charge_SpellScript();
         }
-    };
-
 };
 
 class achievement_share_the_love : public AchievementCriteriaScript
 {
     public:
-        achievement_share_the_love() : AchievementCriteriaScript("achievement_share_the_love")
-        {
-        }
+        achievement_share_the_love() : AchievementCriteriaScript("achievement_share_the_love") { }
 
         bool OnCheck(Player* /*player*/, Unit* target) override
         {
@@ -309,5 +300,6 @@ class achievement_share_the_love : public AchievementCriteriaScript
 void AddSC_boss_gal_darah()
 {
     new boss_gal_darah();
+    new spell_gal_darah_impaling_charge();
     new achievement_share_the_love();
 }
diff --git a/src/server/scripts/Northrend/Gundrak/boss_moorabi.cpp b/src/server/scripts/Northrend/Gundrak/boss_moorabi.cpp
index 255a5ece261..7d7cac5601c 100644
--- a/src/server/scripts/Northrend/Gundrak/boss_moorabi.cpp
+++ b/src/server/scripts/Northrend/Gundrak/boss_moorabi.cpp
@@ -17,170 +17,165 @@
 
 #include "ScriptMgr.h"
 #include "ScriptedCreature.h"
+#include "SpellInfo.h"
 #include "gundrak.h"
 
+/// @todo: implement mojo frenzy
+
 enum Spells
 {
-    SPELL_DETERMINED_STAB                         = 55104,
-    SPELL_GROUND_TREMOR                           = 55142,
-    SPELL_NUMBING_SHOUT                           = 55106,
-    SPELL_DETERMINED_GORE                         = 55102,
-    H_SPELL_DETERMINED_GORE                       = 59444,
-    SPELL_QUAKE                                   = 55101,
-    SPELL_NUMBING_ROAR                            = 55100,
-    SPELL_MOJO_FRENZY                             = 55163,
-    SPELL_TRANSFORMATION                          = 55098, //Periodic, The caster transforms into a powerful mammoth, increasing Physical damage done by 25% and granting immunity to Stun effects.
+    SPELL_DETERMINED_GORE       = 55102,
+    SPELL_DETERMINED_STAB       = 55104,
+    SPELL_GROUND_TREMOR         = 55142,
+    SPELL_NUMBING_SHOUT         = 55106,
+    SPELL_QUAKE                 = 55101,
+    SPELL_NUMBING_ROAR          = 55100,
+    SPELL_MOJO_FRENZY           = 55163,
+    SPELL_TRANSFORMATION        = 55098, // Periodic, The caster transforms into a powerful mammoth, increasing Physical damage done by 25% and granting immunity to Stun effects.
 };
 
 enum Says
 {
-    SAY_AGGRO                                     = 0,
-    SAY_SLAY                                      = 1,
-    SAY_DEATH                                     = 2,
-    SAY_TRANSFORM                                 = 3,
-    SAY_QUAKE                                     = 4,
-    EMOTE_TRANSFORM                               = 5
+    SAY_AGGRO                   = 0,
+    SAY_SLAY                    = 1,
+    SAY_DEATH                   = 2,
+    SAY_TRANSFORM               = 3,
+    SAY_QUAKE                   = 4,
+    EMOTE_BEGIN_TRANSFORM       = 5,
+    EMOTE_TRANSFORMED           = 6,
+    EMOTE_ACTIVATE_ALTAR        = 7
+};
+
+enum Events
+{
+    EVENT_GROUND_TREMOR         = 1,
+    EVENT_NUMBLING_SHOUT,
+    EVENT_DETERMINED_STAB,
+    EVENT_TRANFORMATION
 };
 
 enum Misc
 {
-    DATA_LESS_RABI                                = 1
+    DATA_LESS_RABI              = 1
 };
 
 class boss_moorabi : public CreatureScript
 {
-public:
-    boss_moorabi() : CreatureScript("boss_moorabi") { }
-
-    CreatureAI* GetAI(Creature* creature) const override
-    {
-        return GetInstanceAI<boss_moorabiAI>(creature);
-    }
-
-    struct boss_moorabiAI : public ScriptedAI
-    {
-        boss_moorabiAI(Creature* creature) : ScriptedAI(creature)
-        {
-            Initialize();
-            instance = creature->GetInstanceScript();
-        }
-
-        void Initialize()
-        {
-            uiGroundTremorTimer = 18 * IN_MILLISECONDS;
-            uiNumblingShoutTimer = 10 * IN_MILLISECONDS;
-            uiDeterminedStabTimer = 20 * IN_MILLISECONDS;
-            uiTransformationTImer = 12 * IN_MILLISECONDS;
-            bPhase = false;
-        }
-
-        InstanceScript* instance;
-
-        bool bPhase;
-
-        uint32 uiNumblingShoutTimer;
-        uint32 uiGroundTremorTimer;
-        uint32 uiDeterminedStabTimer;
-        uint32 uiTransformationTImer;
-
-        void Reset() override
-        {
-            Initialize();
-
-            instance->SetData(DATA_MOORABI_EVENT, NOT_STARTED);
-        }
-
-        void EnterCombat(Unit* /*who*/) override
-        {
-            Talk(SAY_AGGRO);
-            DoCast(me, SPELL_MOJO_FRENZY, true);
-
-            instance->SetData(DATA_MOORABI_EVENT, IN_PROGRESS);
-        }
+    public:
+        boss_moorabi() : CreatureScript("boss_moorabi") { }
 
-        void UpdateAI(uint32 uiDiff) override
+        struct boss_moorabiAI : public BossAI
         {
-            //Return since we have no target
-             if (!UpdateVictim())
-                 return;
-
-            if (!bPhase && me->HasAura(SPELL_TRANSFORMATION))
+            boss_moorabiAI(Creature* creature) : BossAI(creature, DATA_MOORABI)
             {
-                bPhase = true;
-                me->RemoveAura(SPELL_MOJO_FRENZY);
+                Initialize();
             }
 
-            if (uiGroundTremorTimer <= uiDiff)
+            void Initialize()
             {
-                Talk(SAY_QUAKE);
-                if (bPhase)
-                    DoCastVictim(SPELL_QUAKE, true);
-                else
-                    DoCastVictim(SPELL_GROUND_TREMOR, true);
-                uiGroundTremorTimer = 10*IN_MILLISECONDS;
-            } else uiGroundTremorTimer -= uiDiff;
-
-            if (uiNumblingShoutTimer <= uiDiff)
+                _transformed = false;
+            }
+
+            void Reset() override
             {
-                if (bPhase)
-                    DoCastVictim(SPELL_NUMBING_ROAR, true);
-                else
-                    DoCastVictim(SPELL_NUMBING_SHOUT, true);
-                uiNumblingShoutTimer = 10*IN_MILLISECONDS;
-            } else uiNumblingShoutTimer -=uiDiff;
-
-            if (uiDeterminedStabTimer <= uiDiff)
+                Initialize();
+                _Reset();
+            }
+
+            void EnterCombat(Unit* /*who*/) override
             {
-                if (bPhase)
-                    DoCastVictim(SPELL_DETERMINED_GORE);
-                else
-                    DoCastVictim(SPELL_DETERMINED_STAB, true);
-                uiDeterminedStabTimer = 8*IN_MILLISECONDS;
-            } else uiDeterminedStabTimer -=uiDiff;
-
-            if (!bPhase && uiTransformationTImer <= uiDiff)
+                _EnterCombat();
+                Talk(SAY_AGGRO);
+                DoCast(me, SPELL_MOJO_FRENZY, true);
+
+                events.ScheduleEvent(EVENT_GROUND_TREMOR, 18 * IN_MILLISECONDS);
+                events.ScheduleEvent(EVENT_NUMBLING_SHOUT, 10 * IN_MILLISECONDS);
+                events.ScheduleEvent(EVENT_DETERMINED_STAB, 20 * IN_MILLISECONDS);
+                events.ScheduleEvent(EVENT_TRANFORMATION, 12 * IN_MILLISECONDS);
+            }
+
+            uint32 GetData(uint32 type) const override
             {
-                Talk(EMOTE_TRANSFORM);
-                Talk(SAY_TRANSFORM);
-                DoCast(me, SPELL_TRANSFORMATION, false);
-                uiTransformationTImer = 10*IN_MILLISECONDS;
-            } else uiTransformationTImer -= uiDiff;
+                if (type == DATA_LESS_RABI)
+                    return _transformed ? 0 : 1;
+                return 0;
+            }
 
-            DoMeleeAttackIfReady();
-         }
+            void KilledUnit(Unit* victim) override
+            {
+                if (victim->GetTypeId() == TYPEID_PLAYER)
+                    Talk(SAY_SLAY);
+            }
 
-        uint32 GetData(uint32 type) const override
-        {
-            if (type == DATA_LESS_RABI)
-                return bPhase ? 0 : 1;
+            void JustDied(Unit* /*killer*/) override
+            {
+                _JustDied();
+                Talk(SAY_DEATH);
+                Talk(EMOTE_ACTIVATE_ALTAR);
+            }
 
-            return 0;
-        }
+            void SpellHit(Unit* /*caster*/, SpellInfo const* spellInfo) override
+            {
+                if (spellInfo->Id == SPELL_TRANSFORMATION)
+                {
+                    _transformed = true;
+                    Talk(EMOTE_TRANSFORMED);
+                    events.CancelEvent(EVENT_TRANFORMATION);
+                    me->RemoveAurasDueToSpell(SPELL_MOJO_FRENZY);
+                }
+            }
 
-         void JustDied(Unit* /*killer*/) override
-         {
-            Talk(SAY_DEATH);
+            void ExecuteEvent(uint32 eventId) override
+            {
+                switch (eventId)
+                {
+                    case EVENT_GROUND_TREMOR:
+                        Talk(SAY_QUAKE);
+                        if (_transformed)
+                            DoCastAOE(SPELL_QUAKE);
+                        else
+                            DoCastAOE(SPELL_GROUND_TREMOR);
+                        events.ScheduleEvent(eventId, 10 * IN_MILLISECONDS);
+                        break;
+                    case EVENT_NUMBLING_SHOUT:
+                        if (_transformed)
+                            DoCastAOE(SPELL_NUMBING_ROAR);
+                        else
+                            DoCastAOE(SPELL_NUMBING_SHOUT);
+                        events.ScheduleEvent(eventId, 10 * IN_MILLISECONDS);
+                        break;
+                    case EVENT_DETERMINED_STAB:
+                        if (_transformed)
+                            DoCastVictim(SPELL_DETERMINED_GORE);
+                        else
+                            DoCastVictim(SPELL_DETERMINED_STAB);
+                        events.ScheduleEvent(eventId, 8 * IN_MILLISECONDS);
+                        break;
+                    case EVENT_TRANFORMATION:
+                        Talk(EMOTE_BEGIN_TRANSFORM);
+                        Talk(SAY_TRANSFORM);
+                        DoCast(me, SPELL_TRANSFORMATION);
+                        events.ScheduleEvent(eventId, 10 * IN_MILLISECONDS);
+                        break;
+                    default:
+                        break;
+                }
+            }
 
-            instance->SetData(DATA_MOORABI_EVENT, DONE);
-        }
+        private:
+            bool _transformed;
+        };
 
-        void KilledUnit(Unit* victim) override
+        CreatureAI* GetAI(Creature* creature) const override
         {
-            if (victim->GetTypeId() != TYPEID_PLAYER)
-                return;
-
-            Talk(SAY_SLAY);
+            return GetGundrakAI<boss_moorabiAI>(creature);
         }
-    };
-
 };
 
 class achievement_less_rabi : public AchievementCriteriaScript
 {
     public:
-        achievement_less_rabi() : AchievementCriteriaScript("achievement_less_rabi")
-        {
-        }
+        achievement_less_rabi() : AchievementCriteriaScript("achievement_less_rabi") { }
 
         bool OnCheck(Player* /*player*/, Unit* target) override
         {
diff --git a/src/server/scripts/Northrend/Gundrak/boss_slad_ran.cpp b/src/server/scripts/Northrend/Gundrak/boss_slad_ran.cpp
index 5db49415604..9520736cdb5 100644
--- a/src/server/scripts/Northrend/Gundrak/boss_slad_ran.cpp
+++ b/src/server/scripts/Northrend/Gundrak/boss_slad_ran.cpp
@@ -24,11 +24,10 @@
 enum Spells
 {
     SPELL_POISON_NOVA                             = 55081,
-    H_SPELL_POISON_NOVA                           = 59842,
     SPELL_POWERFULL_BITE                          = 48287,
-    H_SPELL_POWERFULL_BITE                        = 59840,
     SPELL_VENOM_BOLT                              = 54970,
-    H_SPELL_VENOM_BOLT                            = 59839
+    SPELL_SUMMON_SNAKES                           = 55060, // NYI
+    SPELL_SUMMON_CONSTRICTORS                     = 54969  // NYI
 };
 
 enum Yells
@@ -38,7 +37,8 @@ enum Yells
     SAY_DEATH                                     = 2,
     SAY_SUMMON_SNAKES                             = 3,
     SAY_SUMMON_CONSTRICTORS                       = 4,
-    EMOTE_NOVA                                    = 5
+    EMOTE_NOVA                                    = 5,
+    EMOTE_ACTIVATE_ALTAR                          = 6
 };
 
 enum Creatures
@@ -50,18 +50,17 @@ enum Creatures
 enum ConstrictorSpells
 {
     SPELL_GRIP_OF_SLAD_RAN                        = 55093,
-    SPELL_SNAKE_WRAP                              = 55126,
-    SPELL_VENOMOUS_BITE                           = 54987,
-    H_SPELL_VENOMOUS_BITE                         = 58996
+    SPELL_SNAKE_WRAP                              = 55126, // 55099 -> 55126
+    SPELL_VENOMOUS_BITE                           = 54987
 };
 
 static Position SpawnLoc[]=
 {
-  {1783.81f, 646.637f, 133.948f, 3.71755f},
-  {1775.03f, 606.586f, 134.165f, 1.43117f},
-  {1717.39f, 630.041f, 129.282f, 5.96903f},
-  {1765.66f, 646.542f, 134.02f,  5.11381f},
-  {1716.76f, 635.159f, 129.282f, 0.191986f}
+    {1783.81f, 646.637f, 133.948f, 3.71755f},
+    {1775.03f, 606.586f, 134.165f, 1.43117f},
+    {1717.39f, 630.041f, 129.282f, 5.96903f},
+    {1765.66f, 646.542f, 134.02f,  5.11381f},
+    {1716.76f, 635.159f, 129.282f, 0.191986f}
 };
 
 enum Misc
@@ -74,17 +73,11 @@ class boss_slad_ran : public CreatureScript
 public:
     boss_slad_ran() : CreatureScript("boss_slad_ran") { }
 
-    CreatureAI* GetAI(Creature* creature) const override
-    {
-        return GetInstanceAI<boss_slad_ranAI>(creature);
-    }
-
-    struct boss_slad_ranAI : public ScriptedAI
+    struct boss_slad_ranAI : public BossAI
     {
-        boss_slad_ranAI(Creature* creature) : ScriptedAI(creature), lSummons(me)
+        boss_slad_ranAI(Creature* creature) : BossAI(creature, DATA_SLAD_RAN)
         {
             Initialize();
-            instance = creature->GetInstanceScript();
         }
 
         void Initialize()
@@ -103,26 +96,19 @@ public:
 
         uint8 uiPhase;
 
-        std::set<uint64> lWrappedPlayers;
-        SummonList lSummons;
-
-        InstanceScript* instance;
+        GuidSet lWrappedPlayers;
 
         void Reset() override
         {
             Initialize();
+            _Reset();
             lWrappedPlayers.clear();
-
-            lSummons.DespawnAll();
-
-            instance->SetData(DATA_SLAD_RAN_EVENT, NOT_STARTED);
         }
 
         void EnterCombat(Unit* /*who*/) override
         {
+            _EnterCombat();
             Talk(SAY_AGGRO);
-
-            instance->SetData(DATA_SLAD_RAN_EVENT, IN_PROGRESS);
         }
 
         void UpdateAI(uint32 diff) override
@@ -181,10 +167,9 @@ public:
 
         void JustDied(Unit* /*killer*/) override
         {
+            _JustDied();
             Talk(SAY_DEATH);
-            lSummons.DespawnAll();
-
-            instance->SetData(DATA_SLAD_RAN_EVENT, DONE);
+            Talk(EMOTE_ACTIVATE_ALTAR);
         }
 
         void KilledUnit(Unit* who) override
@@ -193,24 +178,28 @@ public:
                 Talk(SAY_SLAY);
         }
 
-        void JustSummoned(Creature* summoned) override
+        void JustSummoned(Creature* summon) override
         {
-            summoned->GetMotionMaster()->MovePoint(0, me->GetPositionX(), me->GetPositionY(), me->GetPositionZ());
-            lSummons.Summon(summoned);
+            summon->GetMotionMaster()->MovePoint(0, me->GetPositionX(), me->GetPositionY(), me->GetPositionZ());
+            summons.Summon(summon);
         }
 
-        void SetGUID(uint64 guid, int32 type) override
+        void SetGUID(ObjectGuid guid, int32 type) override
         {
             if (type == DATA_SNAKES_WHYD_IT_HAVE_TO_BE_SNAKES)
                 lWrappedPlayers.insert(guid);
         }
 
-        bool WasWrapped(uint64 guid)
+        bool WasWrapped(ObjectGuid guid)
         {
             return lWrappedPlayers.count(guid) != 0;
         }
     };
 
+    CreatureAI* GetAI(Creature* creature) const override
+    {
+        return GetGundrakAI<boss_slad_ranAI>(creature);
+    }
 };
 
 class npc_slad_ran_constrictor : public CreatureScript
@@ -310,9 +299,7 @@ public:
 class achievement_snakes_whyd_it_have_to_be_snakes : public AchievementCriteriaScript
 {
     public:
-        achievement_snakes_whyd_it_have_to_be_snakes() : AchievementCriteriaScript("achievement_snakes_whyd_it_have_to_be_snakes")
-        {
-        }
+        achievement_snakes_whyd_it_have_to_be_snakes() : AchievementCriteriaScript("achievement_snakes_whyd_it_have_to_be_snakes") { }
 
         bool OnCheck(Player* player, Unit* target) override
         {
diff --git a/src/server/scripts/Northrend/Gundrak/gundrak.h b/src/server/scripts/Northrend/Gundrak/gundrak.h
index fffeca82f39..9963c6caee8 100644
--- a/src/server/scripts/Northrend/Gundrak/gundrak.h
+++ b/src/server/scripts/Northrend/Gundrak/gundrak.h
@@ -15,59 +15,85 @@
  * with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef DEF_GUNDRAK_H
-#define DEF_GUNDRAK_H
+#ifndef GUNDRAK_H_
+#define GUNDRAK_H_
 
+#define GundrakScriptName "instance_gundrak"
 #define DataHeader "GD"
 
-enum Data
+uint32 const EncounterCount = 5;
+
+enum DataTypes
 {
-    DATA_SLAD_RAN_EVENT,
-    DATA_MOORABI_EVENT,
-    DATA_DRAKKARI_COLOSSUS_EVENT,
-    DATA_GAL_DARAH_EVENT,
-    DATA_ECK_THE_FEROCIOUS_EVENT
+    // Encounter Ids // Encounter States // Boss GUIDs
+    DATA_SLAD_RAN                    = 0,
+    DATA_DRAKKARI_COLOSSUS           = 1,
+    DATA_MOORABI                     = 2,
+    DATA_GAL_DARAH                   = 3,
+    DATA_ECK_THE_FEROCIOUS           = 4,
+
+    // Additional Objects
+    DATA_SLAD_RAN_ALTAR              = 5,
+    DATA_DRAKKARI_COLOSSUS_ALTAR     = 6,
+    DATA_MOORABI_ALTAR               = 7,
+
+    DATA_SLAD_RAN_STATUE             = 8,
+    DATA_DRAKKARI_COLOSSUS_STATUE    = 9,
+    DATA_MOORABI_STATUE              = 10,
+    DATA_GAL_DARAH_STATUE            = 11,
+
+    DATA_TRAPDOOR                    = 12,
+    DATA_COLLISION                   = 13,
+    DATA_BRIDGE                      = 14,
+
+    DATA_STATUE_ACTIVATE             = 15,
 };
 
-enum Data64
+enum CreatureIds
 {
-    DATA_SLAD_RAN_ALTAR,
-    DATA_MOORABI_ALTAR,
-    DATA_DRAKKARI_COLOSSUS_ALTAR,
-    DATA_SLAD_RAN_STATUE,
-    DATA_MOORABI_STATUE,
-    DATA_DRAKKARI_COLOSSUS_STATUE,
-    DATA_DRAKKARI_COLOSSUS,
-    DATA_STATUE_ACTIVATE
+    NPC_SLAD_RAN                     = 29304,
+    NPC_MOORABI                      = 29305,
+    NPC_GAL_DARAH                    = 29306,
+    NPC_DRAKKARI_COLOSSUS            = 29307,
+    NPC_RUIN_DWELLER                 = 29920,
+    NPC_ECK_THE_FEROCIOUS            = 29932,
+    NPC_ALTAR_TRIGGER                = 30298
 };
 
-enum mainCreatures
+enum GameObjectIds
 {
-    CREATURE_RUIN_DWELLER               = 29920,
-    CREATURE_SLAD_RAN                   = 29304,
-    CREATURE_MOORABI                    = 29305,
-    CREATURE_GALDARAH                   = 29306,
-    CREATURE_DRAKKARICOLOSSUS           = 29307,
-    CREATURE_ECK                        = 29932
+    GO_SLAD_RAN_ALTAR                = 192518,
+    GO_MOORABI_ALTAR                 = 192519,
+    GO_DRAKKARI_COLOSSUS_ALTAR       = 192520,
+    GO_SLAD_RAN_STATUE               = 192564,
+    GO_MOORABI_STATUE                = 192565,
+    GO_GAL_DARAH_STATUE              = 192566,
+    GO_DRAKKARI_COLOSSUS_STATUE      = 192567,
+    GO_ECK_THE_FEROCIOUS_DOOR        = 192632,
+    GO_ECK_THE_FEROCIOUS_DOOR_BEHIND = 192569,
+    GO_GAL_DARAH_DOOR_1              = 193208,
+    GO_GAL_DARAH_DOOR_2              = 193209,
+    GO_GAL_DARAH_DOOR_3              = 192568,
+    GO_TRAPDOOR                      = 193188,
+    GO_COLLISION                     = 192633,
 };
 
-enum Gameobjects
+enum SpellIds
 {
+    SPELL_FIRE_BEAM_MAMMOTH          = 57068,
+    SPELL_FIRE_BEAM_SNAKE            = 57071,
+    SPELL_FIRE_BEAM_ELEMENTAL        = 57072
+};
 
-    GO_SLADRAN_ALTAR                    = 192518,
-    GO_MOORABI_ALTAR                    = 192519,
-    GO_DRAKKARI_COLOSSUS_ALTAR          = 192520,
-    GO_SLADRAN_STATUE                   = 192564,
-    GO_MOORABI_STATUE                   = 192565,
-    GO_GALDARAH_STATUE                  = 192566,
-    GO_DRAKKARI_COLOSSUS_STATUE         = 192567,
-    GO_ECK_THE_FEROCIOUS_DOOR           = 192632,
-    GO_ECK_THE_FEROCIOUS_DOOR_BEHIND    = 192569,
-    GO_GALDARAH_DOOR1                   = 193208,
-    GO_GALDARAH_DOOR2                   = 193209,
-    GO_GALDARAH_DOOR3                   = 192568,
-    GO_BRIDGE                           = 193188,
-    GO_COLLISION                        = 192633
+enum InstanceMisc
+{
+    TIMER_STATUE_ACTIVATION          = 3500
 };
 
-#endif
+template<class AI>
+inline AI* GetGundrakAI(Creature* creature)
+{
+    return GetInstanceAI<AI>(creature, GundrakScriptName);
+}
+
+#endif // GUNDRAK_H_
diff --git a/src/server/scripts/Northrend/Gundrak/instance_gundrak.cpp b/src/server/scripts/Northrend/Gundrak/instance_gundrak.cpp
index 388d43e8dca..31722b06be8 100644
--- a/src/server/scripts/Northrend/Gundrak/instance_gundrak.cpp
+++ b/src/server/scripts/Northrend/Gundrak/instance_gundrak.cpp
@@ -15,577 +15,354 @@
  * with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "ScriptMgr.h"
 #include "InstanceScript.h"
-#include "gundrak.h"
 #include "Player.h"
-#include "TemporarySummon.h"
+#include "ScriptMgr.h"
+#include "WorldSession.h"
+#include "gundrak.h"
+
+DoorData const doorData[] =
+{
+    { GO_GAL_DARAH_DOOR_1,              DATA_GAL_DARAH,         DOOR_TYPE_PASSAGE,  BOUNDARY_NONE },
+    { GO_GAL_DARAH_DOOR_2,              DATA_GAL_DARAH,         DOOR_TYPE_PASSAGE,  BOUNDARY_NONE },
+    { GO_GAL_DARAH_DOOR_3,              DATA_GAL_DARAH,         DOOR_TYPE_ROOM,     BOUNDARY_NONE },
+    { GO_ECK_THE_FEROCIOUS_DOOR,        DATA_MOORABI,           DOOR_TYPE_PASSAGE,  BOUNDARY_NONE },
+    { GO_ECK_THE_FEROCIOUS_DOOR_BEHIND, DATA_ECK_THE_FEROCIOUS, DOOR_TYPE_PASSAGE,  BOUNDARY_NONE },
+    { 0,                                0,                      DOOR_TYPE_ROOM,     BOUNDARY_NONE } // END
+};
 
-#define MAX_ENCOUNTER     5
+ObjectData const creatureData[] =
+{
+    { NPC_DRAKKARI_COLOSSUS, DATA_DRAKKARI_COLOSSUS },
+    { 0,                     0                      } // END
+};
 
-/* GunDrak encounters:
-0 - Slad'Ran
-1 - Moorabi
-2 - Drakkari Colossus
-3 - Gal'Darah
-4 - Eck the Ferocious
-*/
+ObjectData const gameObjectData[] =
+{
+    { GO_SLAD_RAN_ALTAR,           DATA_SLAD_RAN_ALTAR           },
+    { GO_MOORABI_ALTAR,            DATA_MOORABI_ALTAR            },
+    { GO_DRAKKARI_COLOSSUS_ALTAR,  DATA_DRAKKARI_COLOSSUS_ALTAR  },
+    { GO_SLAD_RAN_STATUE,          DATA_SLAD_RAN_STATUE          },
+    { GO_MOORABI_STATUE,           DATA_MOORABI_STATUE           },
+    { GO_DRAKKARI_COLOSSUS_STATUE, DATA_DRAKKARI_COLOSSUS_STATUE },
+    { GO_GAL_DARAH_STATUE,         DATA_GAL_DARAH_STATUE         },
+    { GO_TRAPDOOR,                 DATA_TRAPDOOR                 },
+    { GO_COLLISION,                DATA_COLLISION                },
+    { 0,                           0                             } // END
+};
 
 Position const EckSpawnPoint = { 1643.877930f, 936.278015f, 107.204948f, 0.668432f };
 
 class instance_gundrak : public InstanceMapScript
 {
-public:
-    instance_gundrak() : InstanceMapScript("instance_gundrak", 604) { }
-
-    InstanceScript* GetInstanceScript(InstanceMap* map) const override
-    {
-        return new instance_gundrak_InstanceMapScript(map);
-    }
+    public:
+        instance_gundrak() : InstanceMapScript(GundrakScriptName, 604) { }
 
-    struct instance_gundrak_InstanceMapScript : public InstanceScript
-    {
-        instance_gundrak_InstanceMapScript(Map* map) : InstanceScript(map)
+        struct instance_gundrak_InstanceMapScript : public InstanceScript
         {
-            SetHeaders(DataHeader);
-            isHeroic = map->IsHeroic();
-        }
-
-        bool isHeroic;
-        bool spawnSupport;
-
-        uint32 timer;
-        uint32 phase;
-        uint64 toActivate;
-
-        uint64 sladRanGUID;
-        uint64 moorabiGUID;
-        uint64 drakkariColossusGUID;
-        uint64 galDarahGUID;
-        uint64 eckTheFerociousGUID;
-
-        uint64 sladRanAltarGUID;
-        uint64 moorabiAltarGUID;
-        uint64 drakkariColossusAltarGUID;
-        uint64 sladRanStatueGUID;
-        uint64 moorabiStatueGUID;
-        uint64 drakkariColossusStatueGUID;
-        uint64 galDarahStatueGUID;
-        uint64 eckTheFerociousDoorGUID;
-        uint64 eckTheFerociousDoorBehindGUID;
-        uint64 galDarahDoor1GUID;
-        uint64 galDarahDoor2GUID;
-        uint64 galDarahDoor3GUID;
-        uint64 bridgeGUID;
-        uint64 collisionGUID;
-
-        uint32 m_auiEncounter[MAX_ENCOUNTER];
-
-        GOState sladRanStatueState;
-        GOState moorabiStatueState;
-        GOState drakkariColossusStatueState;
-        GOState galDarahStatueState;
-        GOState bridgeState;
-        GOState collisionState;
-
-        std::set<uint64> DwellerGUIDs;
-
-        std::string str_data;
-
-        void Initialize() override
-        {
-            spawnSupport = false;
-
-            timer = 0;
-            phase = 0;
-            toActivate = 0;
-
-            sladRanGUID = 0;
-            moorabiGUID = 0;
-            drakkariColossusGUID = 0;
-            galDarahGUID = 0;
-            eckTheFerociousGUID = 0;
-
-            sladRanAltarGUID = 0;
-            moorabiAltarGUID = 0;
-            drakkariColossusAltarGUID = 0;
-
-            sladRanStatueGUID = 0;
-            moorabiStatueGUID = 0;
-            drakkariColossusStatueGUID = 0;
-            galDarahStatueGUID = 0;
-
-            eckTheFerociousDoorGUID = 0;
-            eckTheFerociousDoorBehindGUID = 0;
-            galDarahDoor1GUID = 0;
-            galDarahDoor2GUID = 0;
-            galDarahDoor3GUID = 0;
-
-            bridgeGUID = 0;
-            collisionGUID = 0;
-
-            sladRanStatueState = GO_STATE_ACTIVE;
-            moorabiStatueState = GO_STATE_ACTIVE;
-            drakkariColossusStatueState = GO_STATE_ACTIVE;
-            galDarahStatueState = GO_STATE_READY;
-            bridgeState = GO_STATE_ACTIVE;
-            collisionState = GO_STATE_READY;
-
-            DwellerGUIDs.clear();
-
-            memset(&m_auiEncounter, 0, sizeof(m_auiEncounter));
-        }
-
-        bool IsEncounterInProgress() const override
-        {
-            for (uint8 i = 0; i < MAX_ENCOUNTER; ++i)
-                if (m_auiEncounter[i] == IN_PROGRESS)
-                    return true;
-
-            return false;
-        }
+            instance_gundrak_InstanceMapScript(Map* map) : InstanceScript(map)
+            {
+                SetHeaders(DataHeader);
+                SetBossNumber(EncounterCount);
+                LoadDoorData(doorData);
+                LoadObjectData(creatureData, gameObjectData);
+
+                SladRanStatueState = GO_STATE_ACTIVE;
+                DrakkariColossusStatueState = GO_STATE_ACTIVE;
+                MoorabiStatueState = GO_STATE_ACTIVE;
+            }
 
-        void OnCreatureCreate(Creature* creature) override
-        {
-            switch (creature->GetEntry())
+            void OnCreatureCreate(Creature* creature) override
             {
-                case CREATURE_SLAD_RAN:
-                    sladRanGUID = creature->GetGUID();
-                    break;
-                case CREATURE_MOORABI:
-                    moorabiGUID = creature->GetGUID();
-                    break;
-                case CREATURE_GALDARAH:
-                    galDarahGUID = creature->GetGUID();
-                    break;
-                case CREATURE_DRAKKARICOLOSSUS:
-                    drakkariColossusGUID = creature->GetGUID();
-                    break;
-                case CREATURE_ECK:
-                    eckTheFerociousGUID = creature->GetGUID();
-                    break;
-                case CREATURE_RUIN_DWELLER:
-                    if (creature->IsAlive())
-                        DwellerGUIDs.insert(creature->GetGUID());
-                    break;
+                switch (creature->GetEntry())
+                {
+                    case NPC_RUIN_DWELLER:
+                        if (creature->IsAlive())
+                            DwellerGUIDs.insert(creature->GetGUID());
+                        break;
+                    default:
+                        break;
+                }
+
+                InstanceScript::OnCreatureCreate(creature);
             }
-        }
 
-        void OnGameObjectCreate(GameObject* go) override
-        {
-            switch (go->GetEntry())
+            void OnGameObjectCreate(GameObject* go) override
             {
-                case GO_SLADRAN_ALTAR:
-                    sladRanAltarGUID = go->GetGUID();
-                    // Make sure that they start out as unusuable
-                    go->SetFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
-                    if (m_auiEncounter[0] == DONE)
-                    {
-                        if (sladRanStatueState == GO_STATE_ACTIVE)
-                            go->RemoveFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
-                        else
+                switch (go->GetEntry())
+                {
+                    case GO_SLAD_RAN_ALTAR:
+                        if (GetBossState(DATA_SLAD_RAN) == DONE)
                         {
-                            ++phase;
-                            go->SetGoState(GO_STATE_ACTIVE);
+                            if (SladRanStatueState == GO_STATE_ACTIVE)
+                                go->RemoveFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
+                            else
+                                go->SetGoState(GO_STATE_ACTIVE);
                         }
-                    }
-                    break;
-                case GO_MOORABI_ALTAR:
-                    moorabiAltarGUID = go->GetGUID();
-                    // Make sure that they start out as unusuable
-                    go->SetFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
-                    if (m_auiEncounter[0] == DONE)
-                    {
-                        if (moorabiStatueState == GO_STATE_ACTIVE)
-                            go->RemoveFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
-                        else
+                        break;
+                    case GO_MOORABI_ALTAR:
+                        if (GetBossState(DATA_MOORABI) == DONE)
                         {
-                            ++phase;
-                            go->SetGoState(GO_STATE_ACTIVE);
+                            if (MoorabiStatueState == GO_STATE_ACTIVE)
+                                go->RemoveFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
+                            else
+                                go->SetGoState(GO_STATE_ACTIVE);
                         }
-                    }
-                    break;
-                case GO_DRAKKARI_COLOSSUS_ALTAR:
-                    drakkariColossusAltarGUID = go->GetGUID();
-                    // Make sure that they start out as unusuable
-                    go->SetFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
-                    if (m_auiEncounter[0] == DONE)
-                    {
-                        if (drakkariColossusStatueState == GO_STATE_ACTIVE)
-                            go->RemoveFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
-                        else
+                        break;
+                    case GO_DRAKKARI_COLOSSUS_ALTAR:
+                        if (GetBossState(DATA_DRAKKARI_COLOSSUS) == DONE)
                         {
-                            ++phase;
-                            go->SetGoState(GO_STATE_ACTIVE);
+                            if (DrakkariColossusStatueState == GO_STATE_ACTIVE)
+                                go->RemoveFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
+                            else
+                                go->SetGoState(GO_STATE_ACTIVE);
                         }
-                    }
-                    break;
-                case GO_SLADRAN_STATUE:
-                    sladRanStatueGUID = go->GetGUID();
-                    go->SetGoState(sladRanStatueState);
-                    break;
-                case GO_MOORABI_STATUE:
-                    moorabiStatueGUID = go->GetGUID();
-                    go->SetGoState(moorabiStatueState);
-                    break;
-                case GO_GALDARAH_STATUE:
-                    galDarahStatueGUID = go->GetGUID();
-                    go->SetGoState(galDarahStatueState);
-                    break;
-                case GO_DRAKKARI_COLOSSUS_STATUE:
-                    drakkariColossusStatueGUID = go->GetGUID();
-                    go->SetGoState(drakkariColossusStatueState);
-                    break;
-                case GO_ECK_THE_FEROCIOUS_DOOR:
-                    eckTheFerociousDoorGUID = go->GetGUID();
-                    if (isHeroic && m_auiEncounter[1] == DONE)
-                        HandleGameObject(0, true, go);
-                    break;
-                case GO_ECK_THE_FEROCIOUS_DOOR_BEHIND:
-                    eckTheFerociousDoorBehindGUID = go->GetGUID();
-                    if (isHeroic && m_auiEncounter[4] == DONE)
-                        HandleGameObject(0, true, go);
-                    break;
-                case GO_GALDARAH_DOOR1:
-                    galDarahDoor1GUID = go->GetGUID();
-                    if (m_auiEncounter[3] == DONE)
-                        HandleGameObject(0, true, go);
-                    break;
-                case GO_GALDARAH_DOOR2:
-                    galDarahDoor2GUID = go->GetGUID();
-                    if (m_auiEncounter[3] == DONE)
-                        HandleGameObject(0, true, go);
-                    break;
-                case GO_BRIDGE:
-                    bridgeGUID = go->GetGUID();
-                    go->SetGoState(bridgeState);
-                    break;
-                case GO_COLLISION:
-                    collisionGUID = go->GetGUID();
-                    go->SetGoState(collisionState);
-
-                    // Can't spawn here with SpawnGameObject because go isn't added to world yet...
-                    if (collisionState == GO_STATE_ACTIVE_ALTERNATIVE)
-                        spawnSupport = true;
-                    break;
-                case GO_GALDARAH_DOOR3:
-                    galDarahDoor3GUID = go->GetGUID();
-                    if (m_auiEncounter[3] != IN_PROGRESS)
-                        HandleGameObject(galDarahDoor3GUID, true, go);
-                    break;
+                        break;
+                    case GO_SLAD_RAN_STATUE:
+                        go->SetGoState(SladRanStatueState);
+                        break;
+                    case GO_MOORABI_STATUE:
+                        go->SetGoState(MoorabiStatueState);
+                        break;
+                    case GO_GAL_DARAH_STATUE:
+                        go->SetGoState(CheckRequiredBosses(DATA_GAL_DARAH) ? GO_STATE_ACTIVE_ALTERNATIVE : GO_STATE_READY);
+                        break;
+                    case GO_DRAKKARI_COLOSSUS_STATUE:
+                        go->SetGoState(DrakkariColossusStatueState);
+                        break;
+                    case GO_ECK_THE_FEROCIOUS_DOOR:
+                        // Don't store door on non-heroic
+                        if (!instance->IsHeroic())
+                            return;
+                        break;
+                    case GO_TRAPDOOR:
+                        go->SetGoState(CheckRequiredBosses(DATA_GAL_DARAH) ? GO_STATE_READY : GO_STATE_ACTIVE);
+                        break;
+                    case GO_COLLISION:
+                        go->SetGoState(CheckRequiredBosses(DATA_GAL_DARAH) ? GO_STATE_ACTIVE : GO_STATE_READY);
+                        break;
+                    default:
+                        break;
+                }
+
+                InstanceScript::OnGameObjectCreate(go);
             }
-        }
 
-        void OnUnitDeath(Unit* unit) override
-        {
-            if (unit->GetEntry() == CREATURE_RUIN_DWELLER)
+            void OnUnitDeath(Unit* unit) override
             {
-                DwellerGUIDs.erase(unit->GetGUID());
+                if (unit->GetEntry() == NPC_RUIN_DWELLER)
+                {
+                    DwellerGUIDs.erase(unit->GetGUID());
 
-                if (DwellerGUIDs.empty())
-                    unit->SummonCreature(CREATURE_ECK, EckSpawnPoint, TEMPSUMMON_CORPSE_TIMED_DESPAWN, 300 * IN_MILLISECONDS);
+                    if (DwellerGUIDs.empty())
+                        unit->SummonCreature(NPC_ECK_THE_FEROCIOUS, EckSpawnPoint, TEMPSUMMON_CORPSE_TIMED_DESPAWN, 300 * IN_MILLISECONDS);
+                }
             }
-        }
 
-        void SetData(uint32 type, uint32 data) override
-        {
-            switch (type)
+            bool SetBossState(uint32 type, EncounterState state) override
             {
-            case DATA_SLAD_RAN_EVENT:
-                m_auiEncounter[0] = data;
-                if (data == DONE)
-                {
-                  GameObject* go = instance->GetGameObject(sladRanAltarGUID);
-                  if (go)
-                      go->RemoveFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
-                }
-                break;
-            case DATA_MOORABI_EVENT:
-                m_auiEncounter[1] = data;
-                if (data == DONE)
-                {
-                  GameObject* go = instance->GetGameObject(moorabiAltarGUID);
-                  if (go)
-                      go->RemoveFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
-                  if (isHeroic)
-                      HandleGameObject(eckTheFerociousDoorGUID, true);
-                }
-                break;
-            case DATA_DRAKKARI_COLOSSUS_EVENT:
-                m_auiEncounter[2] = data;
-                if (data == DONE)
+                if (!InstanceScript::SetBossState(type, state))
+                    return false;
+
+                switch (type)
                 {
-                  GameObject* go = instance->GetGameObject(drakkariColossusAltarGUID);
-                  if (go)
-                      go->RemoveFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
+                    case DATA_SLAD_RAN:
+                        if (state == DONE)
+                            if (GameObject* go = GetGameObject(DATA_SLAD_RAN_ALTAR))
+                                go->RemoveFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
+                        break;
+                    case DATA_DRAKKARI_COLOSSUS:
+                        if (state == DONE)
+                            if (GameObject* go = GetGameObject(DATA_DRAKKARI_COLOSSUS_ALTAR))
+                                go->RemoveFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
+                        break;
+                    case DATA_MOORABI:
+                        if (state == DONE)
+                            if (GameObject* go = GetGameObject(DATA_MOORABI_ALTAR))
+                                go->RemoveFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
+                        break;
+                    default:
+                        break;
                 }
-                break;
-            case DATA_GAL_DARAH_EVENT:
-                m_auiEncounter[3] = data;
-                if (data == DONE)
+
+                return true;
+            }
+
+            bool CheckRequiredBosses(uint32 bossId, Player const* player = nullptr) const override
+            {
+                if (player && player->GetSession()->HasPermission(rbac::RBAC_PERM_SKIP_CHECK_INSTANCE_REQUIRED_BOSSES))
+                    return true;
+
+                switch (bossId)
                 {
-                    HandleGameObject(galDarahDoor1GUID, true);
-                    HandleGameObject(galDarahDoor2GUID, true);
+                    case DATA_ECK_THE_FEROCIOUS:
+                        if (!instance->IsHeroic() || GetBossState(DATA_MOORABI) != DONE)
+                            return false;
+                        break;
+                    case DATA_GAL_DARAH:
+                        if (SladRanStatueState != GO_STATE_ACTIVE_ALTERNATIVE
+                            || DrakkariColossusStatueState != GO_STATE_ACTIVE_ALTERNATIVE
+                            || MoorabiStatueState != GO_STATE_ACTIVE_ALTERNATIVE)
+                            return false;
+                        break;
+                    default:
+                        break;
                 }
-                HandleGameObject(galDarahDoor3GUID, data == IN_PROGRESS ? false : true);
-                break;
-            case DATA_ECK_THE_FEROCIOUS_EVENT:
-                m_auiEncounter[4] = data;
-                if (isHeroic && data == DONE)
-                    HandleGameObject(eckTheFerociousDoorBehindGUID, true);
-                break;
-            }
 
-            if (data == DONE)
-                SaveToDB();
-        }
+                return true;
+            }
 
-        void SetData64(uint32 type, uint64 data) override
-        {
-            if (type == DATA_STATUE_ACTIVATE)
+            bool IsBridgeReady() const
             {
-                toActivate = data;
-                timer = 3500;
-                ++phase;
+                return SladRanStatueState == GO_STATE_READY && DrakkariColossusStatueState == GO_STATE_READY && MoorabiStatueState == GO_STATE_READY;
             }
-        }
 
-        uint32 GetData(uint32 type) const override
-        {
-            switch (type)
+            void SetData(uint32 type, uint32 data) override
             {
-                case DATA_SLAD_RAN_EVENT:
-                    return m_auiEncounter[0];
-                case DATA_MOORABI_EVENT:
-                    return m_auiEncounter[1];
-                case DATA_GAL_DARAH_EVENT:
-                    return m_auiEncounter[2];
-                case DATA_DRAKKARI_COLOSSUS_EVENT:
-                    return m_auiEncounter[3];
-                case DATA_ECK_THE_FEROCIOUS_EVENT:
-                    return m_auiEncounter[4];
+                if (type == DATA_STATUE_ACTIVATE)
+                {
+                    switch (data)
+                    {
+                        case GO_SLAD_RAN_ALTAR:
+                            Events.ScheduleEvent(DATA_SLAD_RAN_STATUE, TIMER_STATUE_ACTIVATION);
+                            break;
+                        case GO_DRAKKARI_COLOSSUS_ALTAR:
+                            Events.ScheduleEvent(DATA_DRAKKARI_COLOSSUS_STATUE, TIMER_STATUE_ACTIVATION);
+                            break;
+                        case GO_MOORABI_ALTAR:
+                            Events.ScheduleEvent(DATA_MOORABI_STATUE, TIMER_STATUE_ACTIVATION);
+                            break;
+                        default:
+                            break;
+                    }
+                }
             }
 
-            return 0;
-        }
-
-        uint64 GetData64(uint32 type) const override
-        {
-            switch (type)
+            void WriteSaveDataMore(std::ostringstream& data) override
             {
-                case DATA_SLAD_RAN_ALTAR:
-                    return sladRanAltarGUID;
-                case DATA_MOORABI_ALTAR:
-                    return moorabiAltarGUID;
-                case DATA_DRAKKARI_COLOSSUS_ALTAR:
-                    return drakkariColossusAltarGUID;
-                case DATA_SLAD_RAN_STATUE:
-                    return sladRanStatueGUID;
-                case DATA_MOORABI_STATUE:
-                    return moorabiStatueGUID;
-                case DATA_DRAKKARI_COLOSSUS_STATUE:
-                    return drakkariColossusStatueGUID;
-                case DATA_DRAKKARI_COLOSSUS:
-                    return drakkariColossusGUID;
-                case DATA_STATUE_ACTIVATE:
-                    return toActivate;
+                data << uint32(SladRanStatueState) << ' ';
+                data << uint32(DrakkariColossusStatueState) << ' ';
+                data << uint32(MoorabiStatueState) << ' ';
             }
 
-            return 0;
-        }
+            void ReadSaveDataMore(std::istringstream& data) override
+            {
+                uint32 temp;
 
-        std::string GetSaveData() override
-        {
-            OUT_SAVE_INST_DATA;
+                data >> temp;
+                SladRanStatueState = GOState(temp);
 
-            std::ostringstream saveStream;
-            saveStream << "G D " << m_auiEncounter[0] << ' ' << m_auiEncounter[1] << ' '
-                 << m_auiEncounter[2] << ' ' << m_auiEncounter[3] << ' ' << m_auiEncounter[4] << ' '
-                 << (sladRanStatueGUID ? GetObjState(sladRanStatueGUID) : GO_STATE_ACTIVE) << ' ' << (moorabiStatueGUID ? GetObjState(moorabiStatueGUID) : GO_STATE_ACTIVE) << ' '
-                 << (drakkariColossusStatueGUID ? GetObjState(drakkariColossusStatueGUID) : GO_STATE_ACTIVE) << ' ' << (galDarahStatueGUID ? GetObjState(galDarahStatueGUID) : GO_STATE_READY) << ' '
-                 << (bridgeGUID ? GetObjState(bridgeGUID) : GO_STATE_ACTIVE) << ' ' << (collisionGUID ? GetObjState(collisionGUID) : GO_STATE_READY);
+                data >> temp;
+                DrakkariColossusStatueState = GOState(temp);
 
-            str_data = saveStream.str();
+                data >> temp;
+                MoorabiStatueState = GOState(temp);
 
-            OUT_SAVE_INST_DATA_COMPLETE;
-            return str_data;
-        }
+                if (IsBridgeReady())
+                    Events.ScheduleEvent(DATA_BRIDGE, TIMER_STATUE_ACTIVATION);
+            }
 
-        void Load(const char* in) override
-        {
-            if (!in)
+            void ToggleGameObject(uint32 type, GOState state)
             {
-                OUT_LOAD_INST_DATA_FAIL;
-                return;
+                if (GameObject* go = GetGameObject(type))
+                    go->SetGoState(state);
+
+                switch (type)
+                {
+                    case DATA_SLAD_RAN_STATUE:
+                        SladRanStatueState = state;
+                        break;
+                    case DATA_DRAKKARI_COLOSSUS_STATUE:
+                        DrakkariColossusStatueState = state;
+                        break;
+                    case DATA_MOORABI_STATUE:
+                        MoorabiStatueState = state;
+                        break;
+                    default:
+                        break;
+                }
             }
 
-            OUT_LOAD_INST_DATA(in);
+            void Update(uint32 diff) override
+            {
+                Events.Update(diff);
 
-            char dataHead1, dataHead2;
-            uint16 data0, data1, data2, data3, data4, data5, data6, data7, data8, data9, data10;
+                while (uint32 eventId = Events.ExecuteEvent())
+                {
+                    uint32 spellId = 0;
+                    uint32 altarId = 0;
+                    switch (eventId)
+                    {
+                        case DATA_SLAD_RAN_STATUE:
+                            spellId = SPELL_FIRE_BEAM_SNAKE;
+                            altarId = DATA_SLAD_RAN_ALTAR;
+                            break;
+                        case DATA_DRAKKARI_COLOSSUS_STATUE:
+                            spellId = SPELL_FIRE_BEAM_ELEMENTAL;
+                            altarId = DATA_DRAKKARI_COLOSSUS_ALTAR;
+                            break;
+                        case DATA_MOORABI_STATUE:
+                            spellId = SPELL_FIRE_BEAM_MAMMOTH;
+                            altarId = DATA_MOORABI_ALTAR;
+                            break;
+                        case DATA_BRIDGE:
+                            for (uint32 type = DATA_SLAD_RAN_STATUE; type <= DATA_GAL_DARAH_STATUE; ++type)
+                                ToggleGameObject(type, GO_STATE_ACTIVE_ALTERNATIVE);
+                            ToggleGameObject(DATA_TRAPDOOR, GO_STATE_READY);
+                            ToggleGameObject(DATA_COLLISION, GO_STATE_ACTIVE);
+                            SaveToDB();
+                            return;
+                        default:
+                            return;
+                    }
 
-            std::istringstream loadStream(in);
-            loadStream >> dataHead1 >> dataHead2 >> data0 >> data1 >> data2 >> data3
-                       >> data4 >> data5 >> data6 >> data7 >> data8 >> data9 >> data10;
+                    if (GameObject* altar = GetGameObject(altarId))
+                        if (Creature* trigger = altar->FindNearestCreature(NPC_ALTAR_TRIGGER, 10.0f))
+                            trigger->CastSpell((Unit*)nullptr, spellId, true);
 
-            if (dataHead1 == 'G' && dataHead2 == 'D')
-            {
-                m_auiEncounter[0] = data0;
-                m_auiEncounter[1] = data1;
-                m_auiEncounter[2] = data2;
-                m_auiEncounter[3] = data3;
-                m_auiEncounter[4] = data4;
-                sladRanStatueState            = GOState(data5);
-                moorabiStatueState            = GOState(data6);
-                drakkariColossusStatueState   = GOState(data7);
-                galDarahStatueState           = GOState(data8);
-                bridgeState                   = GOState(data9);
-                collisionState                = GOState(data10);
-
-                for (uint8 i = 0; i < MAX_ENCOUNTER; ++i)
-                    if (m_auiEncounter[i] == IN_PROGRESS)
-                        m_auiEncounter[i] = NOT_STARTED;
-            } else OUT_LOAD_INST_DATA_FAIL;
-
-            OUT_LOAD_INST_DATA_COMPLETE;
-        }
+                    // eventId equals statueId
+                    ToggleGameObject(eventId, GO_STATE_READY);
 
-         void Update(uint32 diff) override
-         {
-             // Spawn the support for the bridge if necessary
-             if (spawnSupport)
-             {
-                 if (GameObject* collision = instance->GetGameObject(collisionGUID))
-                     collision->SummonGameObject(192743, collision->GetPositionX(), collision->GetPositionY(), collision->GetPositionZ(), collision->GetOrientation(), 0, 0, 0, 0, 0);
-                 spawnSupport = false;
-             }
-
-             // If there is nothing to activate, then return
-             if (!toActivate)
-                 return;
-
-             if (timer < diff)
-             {
-                 timer = 0;
-                 if (toActivate == bridgeGUID)
-                 {
-                     GameObject* bridge = instance->GetGameObject(bridgeGUID);
-                     GameObject* collision = instance->GetGameObject(collisionGUID);
-                     GameObject* sladRanStatue = instance->GetGameObject(sladRanStatueGUID);
-                     GameObject* moorabiStatue = instance->GetGameObject(moorabiStatueGUID);
-                     GameObject* drakkariColossusStatue = instance->GetGameObject(drakkariColossusStatueGUID);
-                     GameObject* galDarahStatue = instance->GetGameObject(galDarahStatueGUID);
-
-                     toActivate = 0;
-
-                     if (bridge && collision && sladRanStatue && moorabiStatue && drakkariColossusStatue && galDarahStatue)
-                     {
-                         bridge->SetGoState(GO_STATE_ACTIVE_ALTERNATIVE);
-                         collision->SetGoState(GO_STATE_ACTIVE_ALTERNATIVE);
-                         sladRanStatue->SetGoState(GO_STATE_ACTIVE_ALTERNATIVE);
-                         moorabiStatue->SetGoState(GO_STATE_ACTIVE_ALTERNATIVE);
-                         drakkariColossusStatue->SetGoState(GO_STATE_ACTIVE_ALTERNATIVE);
-                         galDarahStatue->SetGoState(GO_STATE_ACTIVE_ALTERNATIVE);
-
-                         // Add the GO that solidifies the bridge so you can walk on it
-                         spawnSupport = true;
-                         SaveToDB();
-                     }
-                 }
-                 else
-                 {
-                     uint32 spell = 0;
-                     GameObject* altar = NULL;
-                     if (toActivate == sladRanStatueGUID)
-                     {
-                         spell = 57071;
-                         altar = instance->GetGameObject(sladRanAltarGUID);
-                     }
-                     else if (toActivate == moorabiStatueGUID)
-                     {
-                         spell = 57068;
-                         altar = instance->GetGameObject(moorabiAltarGUID);
-                     }
-                     else if (toActivate == drakkariColossusStatueGUID)
-                     {
-                         spell = 57072;
-                         altar = instance->GetGameObject(drakkariColossusAltarGUID);
-                     }
-
-                     // This is a workaround to make the beam cast properly. The caster should be ID 30298 but since the spells
-                     // all are with scripted target for that same ID, it will hit itself.
-                     if (altar)
-                         if (Creature* trigger = altar->SummonCreature(18721, altar->GetPositionX(), altar->GetPositionY(), altar->GetPositionZ() + 3, altar->GetOrientation(), TEMPSUMMON_CORPSE_DESPAWN, 5000))
-                         {
-                             // Set the trigger model to invisible
-                             trigger->SetDisplayId(11686);
-                             trigger->CastSpell(trigger, spell, false);
-                         }
-
-                     if (GameObject* statueGO = instance->GetGameObject(toActivate))
-                         statueGO->SetGoState(GO_STATE_READY);
-
-                     toActivate = 0;
-
-                     if (phase == 3)
-                         SetData64(DATA_STATUE_ACTIVATE, bridgeGUID);
-                     else
-                         SaveToDB(); // Don't save in between last statue and bridge turning in case of crash leading to stuck instance
+                    if (IsBridgeReady())
+                        Events.ScheduleEvent(DATA_BRIDGE, TIMER_STATUE_ACTIVATION);
+
+                    SaveToDB();
                 }
             }
-            else
-                timer -= diff;
-        }
 
-         GOState GetObjState(uint64 guid)
-         {
-             if (GameObject* go = instance->GetGameObject(guid))
-                 return go->GetGoState();
-             return GO_STATE_ACTIVE;
-         }
-    };
+        protected:
+            EventMap Events;
+            GuidSet DwellerGUIDs;
+
+            GOState SladRanStatueState;
+            GOState DrakkariColossusStatueState;
+            GOState MoorabiStatueState;
+        };
 
+        InstanceScript* GetInstanceScript(InstanceMap* map) const override
+        {
+            return new instance_gundrak_InstanceMapScript(map);
+        }
 };
 
 class go_gundrak_altar : public GameObjectScript
 {
-public:
-    go_gundrak_altar() : GameObjectScript("go_gundrak_altar") { }
-
-    bool OnGossipHello(Player* /*player*/, GameObject* go) override
-    {
-        InstanceScript* instance = go->GetInstanceScript();
-        uint64 statueGUID = 0;
+    public:
+        go_gundrak_altar() : GameObjectScript("go_gundrak_altar") { }
 
-        go->SetFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
-        go->SetGoState(GO_STATE_ACTIVE);
-
-        if (instance)
+        bool OnGossipHello(Player* /*player*/, GameObject* go) override
         {
-            switch (go->GetEntry())
-            {
-                case GO_SLADRAN_ALTAR:
-                    statueGUID = instance->GetData64(DATA_SLAD_RAN_STATUE);
-                    break;
-                case GO_MOORABI_ALTAR:
-                    statueGUID = instance->GetData64(DATA_MOORABI_STATUE);
-                    break;
-                case GO_DRAKKARI_COLOSSUS_ALTAR:
-                    statueGUID = instance->GetData64(DATA_DRAKKARI_COLOSSUS_STATUE);
-                    break;
-            }
+            go->SetFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
+            go->SetGoState(GO_STATE_ACTIVE);
 
-            if (!instance->GetData64(DATA_STATUE_ACTIVATE))
+            if (InstanceScript* instance = go->GetInstanceScript())
             {
-                instance->SetData64(DATA_STATUE_ACTIVATE, statueGUID);
-                go->SetFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
-                go->SetGoState(GO_STATE_ACTIVE);
+                instance->SetData(DATA_STATUE_ACTIVATE, go->GetEntry());
+                return true;
             }
-            return true;
-        }
-        return false;
-    }
 
+            return false;
+        }
 };
 
 void AddSC_instance_gundrak()
diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_blood_prince_council.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_blood_prince_council.cpp
index 4b3c50d1388..640c06b1c28 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_blood_prince_council.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_blood_prince_council.cpp
@@ -216,19 +216,19 @@ class boss_blood_council_controller : public CreatureScript
 
                 DoCast(me, SPELL_INVOCATION_OF_BLOOD_VALANAR);
 
-                if (Creature* keleseth = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_PRINCE_KELESETH_GUID)))
+                if (Creature* keleseth = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_PRINCE_KELESETH_GUID)))
                 {
                     instance->SendEncounterUnit(ENCOUNTER_FRAME_ENGAGE, keleseth);
                     DoZoneInCombat(keleseth);
                 }
 
-                if (Creature* taldaram = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_PRINCE_TALDARAM_GUID)))
+                if (Creature* taldaram = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_PRINCE_TALDARAM_GUID)))
                 {
                     instance->SendEncounterUnit(ENCOUNTER_FRAME_ENGAGE, taldaram);
                     DoZoneInCombat(taldaram);
                 }
 
-                if (Creature* valanar = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_PRINCE_VALANAR_GUID)))
+                if (Creature* valanar = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_PRINCE_VALANAR_GUID)))
                 {
                     instance->SendEncounterUnit(ENCOUNTER_FRAME_ENGAGE, valanar);
                     DoZoneInCombat(valanar);
@@ -236,16 +236,16 @@ class boss_blood_council_controller : public CreatureScript
 
                 events.ScheduleEvent(EVENT_INVOCATION_OF_BLOOD, 46500);
 
-                _invocationOrder[0] = InvocationData(instance->GetData64(DATA_PRINCE_VALANAR_GUID), SPELL_INVOCATION_OF_BLOOD_VALANAR, EMOTE_VALANAR_INVOCATION, 71070);
+                _invocationOrder[0] = InvocationData(instance->GetGuidData(DATA_PRINCE_VALANAR_GUID), SPELL_INVOCATION_OF_BLOOD_VALANAR, EMOTE_VALANAR_INVOCATION, 71070);
                 if (urand(0, 1))
                 {
-                    _invocationOrder[1] = InvocationData(instance->GetData64(DATA_PRINCE_TALDARAM_GUID), SPELL_INVOCATION_OF_BLOOD_TALDARAM, EMOTE_TALDARAM_INVOCATION, 71081);
-                    _invocationOrder[2] = InvocationData(instance->GetData64(DATA_PRINCE_KELESETH_GUID), SPELL_INVOCATION_OF_BLOOD_KELESETH, EMOTE_KELESETH_INVOCATION, 71080);
+                    _invocationOrder[1] = InvocationData(instance->GetGuidData(DATA_PRINCE_TALDARAM_GUID), SPELL_INVOCATION_OF_BLOOD_TALDARAM, EMOTE_TALDARAM_INVOCATION, 71081);
+                    _invocationOrder[2] = InvocationData(instance->GetGuidData(DATA_PRINCE_KELESETH_GUID), SPELL_INVOCATION_OF_BLOOD_KELESETH, EMOTE_KELESETH_INVOCATION, 71080);
                 }
                 else
                 {
-                    _invocationOrder[1] = InvocationData(instance->GetData64(DATA_PRINCE_KELESETH_GUID), SPELL_INVOCATION_OF_BLOOD_KELESETH, EMOTE_KELESETH_INVOCATION, 71080);
-                    _invocationOrder[2] = InvocationData(instance->GetData64(DATA_PRINCE_TALDARAM_GUID), SPELL_INVOCATION_OF_BLOOD_TALDARAM, EMOTE_TALDARAM_INVOCATION, 71081);
+                    _invocationOrder[1] = InvocationData(instance->GetGuidData(DATA_PRINCE_KELESETH_GUID), SPELL_INVOCATION_OF_BLOOD_KELESETH, EMOTE_KELESETH_INVOCATION, 71080);
+                    _invocationOrder[2] = InvocationData(instance->GetGuidData(DATA_PRINCE_TALDARAM_GUID), SPELL_INVOCATION_OF_BLOOD_TALDARAM, EMOTE_TALDARAM_INVOCATION, 71081);
                 }
             }
 
@@ -259,13 +259,13 @@ class boss_blood_council_controller : public CreatureScript
             void JustReachedHome() override
             {
                 _resetCounter = 0;
-                if (Creature* keleseth = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_PRINCE_KELESETH_GUID)))
+                if (Creature* keleseth = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_PRINCE_KELESETH_GUID)))
                     keleseth->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
 
-                if (Creature* taldaram = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_PRINCE_TALDARAM_GUID)))
+                if (Creature* taldaram = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_PRINCE_TALDARAM_GUID)))
                     taldaram->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
 
-                if (Creature* valanar = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_PRINCE_VALANAR_GUID)))
+                if (Creature* valanar = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_PRINCE_VALANAR_GUID)))
                     valanar->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
             }
 
@@ -335,12 +335,12 @@ class boss_blood_council_controller : public CreatureScript
         private:
             struct InvocationData
             {
-                uint64 guid;
+                ObjectGuid guid;
                 uint32 spellId;
                 uint32 textId;
                 uint32 visualSpell;
 
-                InvocationData(uint64 _guid, uint32 _spellId, uint32 _textId, uint32 _visualSpell)
+                InvocationData(ObjectGuid _guid, uint32 _spellId, uint32 _textId, uint32 _visualSpell)
                 {
                     guid = _guid;
                     spellId = _spellId;
@@ -348,7 +348,7 @@ class boss_blood_council_controller : public CreatureScript
                     visualSpell = _visualSpell;
                 }
 
-                InvocationData() : guid(0), spellId(0), textId(0), visualSpell(0) { }
+                InvocationData() : spellId(0), textId(0), visualSpell(0) { }
             } _invocationOrder[3];
 
             uint32 _invocationStage;
@@ -400,7 +400,7 @@ class boss_prince_keleseth_icc : public CreatureScript
 
             void EnterCombat(Unit* /*who*/) override
             {
-                if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_BLOOD_PRINCES_CONTROL)))
+                if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_BLOOD_PRINCES_CONTROL)))
                     DoZoneInCombat(controller);
 
                 events.ScheduleEvent(EVENT_BERSERK, 600000);
@@ -428,7 +428,7 @@ class boss_prince_keleseth_icc : public CreatureScript
                 instance->SendEncounterUnit(ENCOUNTER_FRAME_DISENGAGE, me);
                 me->SetHealth(_spawnHealth);
                 _isEmpowered = false;
-                if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_BLOOD_PRINCES_CONTROL)))
+                if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_BLOOD_PRINCES_CONTROL)))
                 {
                     me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
                     controller->AI()->SetData(0, 1);
@@ -515,10 +515,10 @@ class boss_prince_keleseth_icc : public CreatureScript
                 if (!CheckBoundary(me))
                 {
                     EnterEvadeMode();
-                    if (Creature* taldaram = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_PRINCE_TALDARAM_GUID)))
+                    if (Creature* taldaram = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_PRINCE_TALDARAM_GUID)))
                         taldaram->AI()->EnterEvadeMode();
 
-                    if (Creature* valanar = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_PRINCE_VALANAR_GUID)))
+                    if (Creature* valanar = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_PRINCE_VALANAR_GUID)))
                         valanar->AI()->EnterEvadeMode();
 
                     return false;
@@ -620,7 +620,7 @@ class boss_prince_taldaram_icc : public CreatureScript
 
             void EnterCombat(Unit* /*who*/) override
             {
-                if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_BLOOD_PRINCES_CONTROL)))
+                if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_BLOOD_PRINCES_CONTROL)))
                     DoZoneInCombat(controller);
 
                 events.ScheduleEvent(EVENT_BERSERK, 600000);
@@ -644,7 +644,7 @@ class boss_prince_taldaram_icc : public CreatureScript
                 instance->SendEncounterUnit(ENCOUNTER_FRAME_DISENGAGE, me);
                 me->SetHealth(_spawnHealth);
                 _isEmpowered = false;
-                if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_BLOOD_PRINCES_CONTROL)))
+                if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_BLOOD_PRINCES_CONTROL)))
                 {
                     me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
                     controller->AI()->SetData(0, 1);
@@ -734,10 +734,10 @@ class boss_prince_taldaram_icc : public CreatureScript
                 if (!CheckBoundary(me))
                 {
                     EnterEvadeMode();
-                    if (Creature* keleseth = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_PRINCE_KELESETH_GUID)))
+                    if (Creature* keleseth = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_PRINCE_KELESETH_GUID)))
                         keleseth->AI()->EnterEvadeMode();
 
-                    if (Creature* valanar = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_PRINCE_VALANAR_GUID)))
+                    if (Creature* valanar = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_PRINCE_VALANAR_GUID)))
                         valanar->AI()->EnterEvadeMode();
 
                     return false;
@@ -844,7 +844,7 @@ class boss_prince_valanar_icc : public CreatureScript
 
             void EnterCombat(Unit* /*who*/) override
             {
-                if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_BLOOD_PRINCES_CONTROL)))
+                if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_BLOOD_PRINCES_CONTROL)))
                     DoZoneInCombat(controller);
 
                 events.ScheduleEvent(EVENT_BERSERK, 600000);
@@ -868,7 +868,7 @@ class boss_prince_valanar_icc : public CreatureScript
                 instance->SendEncounterUnit(ENCOUNTER_FRAME_DISENGAGE, me);
                 me->SetHealth(me->GetMaxHealth());
                 _isEmpowered = false;
-                if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_BLOOD_PRINCES_CONTROL)))
+                if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_BLOOD_PRINCES_CONTROL)))
                 {
                     me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
                     controller->AI()->SetData(0, 1);
@@ -973,10 +973,10 @@ class boss_prince_valanar_icc : public CreatureScript
                 if (!CheckBoundary(me))
                 {
                     EnterEvadeMode();
-                    if (Creature* keleseth = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_PRINCE_KELESETH_GUID)))
+                    if (Creature* keleseth = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_PRINCE_KELESETH_GUID)))
                         keleseth->AI()->EnterEvadeMode();
 
-                    if (Creature* taldaram = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_PRINCE_TALDARAM_GUID)))
+                    if (Creature* taldaram = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_PRINCE_TALDARAM_GUID)))
                         taldaram->AI()->EnterEvadeMode();
 
                     return false;
@@ -1112,13 +1112,13 @@ class npc_blood_queen_lana_thel : public CreatureScript
                     _events.Reset();
 
                     // remove Feign Death from princes
-                    if (Creature* keleseth = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_PRINCE_KELESETH_GUID)))
+                    if (Creature* keleseth = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_PRINCE_KELESETH_GUID)))
                         keleseth->AI()->DoAction(ACTION_STAND_UP);
 
-                    if (Creature* taldaram = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_PRINCE_TALDARAM_GUID)))
+                    if (Creature* taldaram = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_PRINCE_TALDARAM_GUID)))
                         taldaram->AI()->DoAction(ACTION_STAND_UP);
 
-                    if (Creature* valanar = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_PRINCE_VALANAR_GUID)))
+                    if (Creature* valanar = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_PRINCE_VALANAR_GUID)))
                     {
                         valanar->AI()->DoAction(ACTION_STAND_UP);
                         valanar->SetHealth(valanar->GetMaxHealth());
@@ -1148,7 +1148,6 @@ class npc_ball_of_flame : public CreatureScript
             npc_ball_of_flameAI(Creature* creature) : ScriptedAI(creature), _instance(creature->GetInstanceScript())
             {
                 _despawnTimer = 0;
-                _chaseGUID = 0;
             }
 
             void Reset() override
@@ -1163,16 +1162,16 @@ class npc_ball_of_flame : public CreatureScript
 
             void MovementInform(uint32 type, uint32 id) override
             {
-                if (type == CHASE_MOTION_TYPE && id == GUID_LOPART(_chaseGUID) && _chaseGUID)
+                if (type == CHASE_MOTION_TYPE && id == _chaseGUID.GetCounter() && _chaseGUID)
                 {
                     me->RemoveAurasDueToSpell(SPELL_BALL_OF_FLAMES_PERIODIC);
                     DoCast(me, SPELL_FLAMES);
                     _despawnTimer = 1000;
-                    _chaseGUID = 0;
+                    _chaseGUID.Clear();
                 }
             }
 
-            void SetGUID(uint64 guid, int32 /*type*/) override
+            void SetGUID(ObjectGuid guid, int32 /*type*/) override
             {
                 _chaseGUID = guid;
             }
@@ -1213,7 +1212,7 @@ class npc_ball_of_flame : public CreatureScript
             }
 
         private:
-            uint64 _chaseGUID;
+            ObjectGuid _chaseGUID;
             InstanceScript* _instance;
             uint32 _despawnTimer;
         };
diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_blood_queen_lana_thel.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_blood_queen_lana_thel.cpp
index 29d50f1db2a..8a325dee7b4 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_blood_queen_lana_thel.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_blood_queen_lana_thel.cpp
@@ -148,7 +148,7 @@ class boss_blood_queen_lana_thel : public CreatureScript
 
             void Initialize()
             {
-                _offtankGUID = 0;
+                _offtankGUID.Clear();
                 _creditBloodQuickening = false;
                 _killMinchar = false;
             }
@@ -210,7 +210,7 @@ class boss_blood_queen_lana_thel : public CreatureScript
                         minchar->RemoveByteFlag(UNIT_FIELD_BYTES_1, 3, UNIT_BYTE1_FLAG_ALWAYS_STAND);
                         minchar->SetCanFly(false);
                         minchar->RemoveAllAuras();
-                        minchar->GetMotionMaster()->MoveCharge(4629.3711f, 2782.6089f, 401.5301f, SPEED_CHARGE/3.0f);
+                        minchar->GetMotionMaster()->MoveCharge(4629.3711f, 2782.6089f, 401.5301f, SPEED_CHARGE / 3.0f);
                     }
                 }
             }
@@ -278,7 +278,7 @@ class boss_blood_queen_lana_thel : public CreatureScript
                     Talk(SAY_KILL);
             }
 
-            void SetGUID(uint64 guid, int32 type = 0) override
+            void SetGUID(ObjectGuid guid, int32 type = 0) override
             {
                 switch (type)
                 {
@@ -390,7 +390,7 @@ class boss_blood_queen_lana_thel : public CreatureScript
                                     }
                                 }
                                 else
-                                    _offtankGUID = 0;
+                                    _offtankGUID.Clear();
                             }
                             events.ScheduleEvent(EVENT_BLOOD_MIRROR, 2500, EVENT_GROUP_CANCELLABLE);
                             break;
@@ -458,12 +458,12 @@ class boss_blood_queen_lana_thel : public CreatureScript
                 DoMeleeAttackIfReady();
             }
 
-            bool WasVampire(uint64 guid)
+            bool WasVampire(ObjectGuid guid) const
             {
                 return _vampires.count(guid) != 0;
             }
 
-            bool WasBloodbolted(uint64 guid)
+            bool WasBloodbolted(ObjectGuid guid) const
             {
                 return _bloodboltedPlayers.count(guid) != 0;
             }
@@ -501,9 +501,9 @@ class boss_blood_queen_lana_thel : public CreatureScript
                 return Trinity::Containers::SelectRandomContainerElement(tempTargets);
             }
 
-            std::set<uint64> _vampires;
-            std::set<uint64> _bloodboltedPlayers;
-            uint64 _offtankGUID;
+            GuidSet _vampires;
+            GuidSet _bloodboltedPlayers;
+            ObjectGuid _offtankGUID;
             bool _creditBloodQuickening;
             bool _killMinchar;
         };
@@ -554,7 +554,7 @@ class spell_blood_queen_vampiric_bite : public SpellScriptLoader
                     return;
 
                 uint32 spellId = sSpellMgr->GetSpellIdForDifficulty(SPELL_FRENZIED_BLOODTHIRST, GetCaster());
-                GetCaster()->RemoveAura(spellId, 0, 0, AURA_REMOVE_BY_ENEMY_SPELL);
+                GetCaster()->RemoveAura(spellId, ObjectGuid::Empty, 0, AURA_REMOVE_BY_ENEMY_SPELL);
                 GetCaster()->CastSpell(GetCaster(), SPELL_ESSENCE_OF_THE_BLOOD_QUEEN_PLR, TRIGGERED_FULL_MASK);
 
                 // Shadowmourne questline
@@ -570,7 +570,7 @@ class spell_blood_queen_vampiric_bite : public SpellScriptLoader
                 }
 
                 if (InstanceScript* instance = GetCaster()->GetInstanceScript())
-                    if (Creature* bloodQueen = ObjectAccessor::GetCreature(*GetCaster(), instance->GetData64(DATA_BLOOD_QUEEN_LANA_THEL)))
+                    if (Creature* bloodQueen = ObjectAccessor::GetCreature(*GetCaster(), instance->GetGuidData(DATA_BLOOD_QUEEN_LANA_THEL)))
                         bloodQueen->AI()->SetGUID(GetHitUnit()->GetGUID(), GUID_VAMPIRE);
             }
 
@@ -606,7 +606,7 @@ class spell_blood_queen_frenzied_bloodthirst : public SpellScriptLoader
             void OnApply(AuraEffect const* /*aurEff*/, AuraEffectHandleModes /*mode*/)
             {
                 if (InstanceScript* instance = GetTarget()->GetInstanceScript())
-                    if (Creature* bloodQueen = ObjectAccessor::GetCreature(*GetTarget(), instance->GetData64(DATA_BLOOD_QUEEN_LANA_THEL)))
+                    if (Creature* bloodQueen = ObjectAccessor::GetCreature(*GetTarget(), instance->GetGuidData(DATA_BLOOD_QUEEN_LANA_THEL)))
                         bloodQueen->AI()->Talk(EMOTE_BLOODTHIRST, GetTarget());
             }
 
@@ -615,7 +615,7 @@ class spell_blood_queen_frenzied_bloodthirst : public SpellScriptLoader
                 Unit* target = GetTarget();
                 if (GetTargetApplication()->GetRemoveMode() == AURA_REMOVE_BY_EXPIRE)
                     if (InstanceScript* instance = target->GetInstanceScript())
-                        if (Creature* bloodQueen = ObjectAccessor::GetCreature(*target, instance->GetData64(DATA_BLOOD_QUEEN_LANA_THEL)))
+                        if (Creature* bloodQueen = ObjectAccessor::GetCreature(*target, instance->GetGuidData(DATA_BLOOD_QUEEN_LANA_THEL)))
                         {
                             // this needs to be done BEFORE charm aura or we hit an assert in Unit::SetCharmedBy
                             if (target->GetVehicleKit())
diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_deathbringer_saurfang.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_deathbringer_saurfang.cpp
index 2909946a0db..15cf0d31af9 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_deathbringer_saurfang.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_deathbringer_saurfang.cpp
@@ -299,7 +299,7 @@ class boss_deathbringer_saurfang : public CreatureScript
                 if (!_introDone)
                 {
                     DoCast(me, SPELL_GRIP_OF_AGONY);
-                    if (Creature* creature = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SAURFANG_EVENT_NPC)))
+                    if (Creature* creature = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SAURFANG_EVENT_NPC)))
                         creature->AI()->DoAction(ACTION_INTERRUPT_INTRO);
                 }
 
@@ -375,7 +375,7 @@ class boss_deathbringer_saurfang : public CreatureScript
 
                     //instance->DoRemoveAurasDueToSpellOnPlayers(SPELL_MARK_OF_THE_FALLEN_CHAMPION);
                     DoCast(me, SPELL_PERMANENT_FEIGN_DEATH);
-                    if (Creature* creature = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SAURFANG_EVENT_NPC)))
+                    if (Creature* creature = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SAURFANG_EVENT_NPC)))
                         creature->AI()->DoAction(ACTION_START_OUTRO);
                 }
             }
@@ -410,7 +410,7 @@ class boss_deathbringer_saurfang : public CreatureScript
                 if (type != POINT_MOTION_TYPE && id != POINT_SAURFANG)
                     return;
 
-                instance->HandleGameObject(instance->GetData64(GO_SAURFANG_S_DOOR), false);
+                instance->HandleGameObject(instance->GetGuidData(GO_SAURFANG_S_DOOR), false);
             }
 
             void SpellHitTarget(Unit* target, SpellInfo const* spell) override
@@ -650,8 +650,8 @@ class npc_high_overlord_saurfang_icc : public CreatureScript
                         Talk(SAY_INTRO_HORDE_1);
                         _events.SetPhase(PHASE_INTRO_H);
                         _events.ScheduleEvent(EVENT_INTRO_HORDE_3, 18500, 0, PHASE_INTRO_H);
-                        _instance->HandleGameObject(_instance->GetData64(GO_SAURFANG_S_DOOR), true);
-                        if (Creature* deathbringer = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_DEATHBRINGER_SAURFANG)))
+                        _instance->HandleGameObject(_instance->GetGuidData(GO_SAURFANG_S_DOOR), true);
+                        if (Creature* deathbringer = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_DEATHBRINGER_SAURFANG)))
                             deathbringer->AI()->DoAction(PHASE_INTRO_H);
                         break;
                     }
@@ -703,11 +703,11 @@ class npc_high_overlord_saurfang_icc : public CreatureScript
                             _events.ScheduleEvent(EVENT_INTRO_HORDE_6, 29500, 0, PHASE_INTRO_H);
                             _events.ScheduleEvent(EVENT_INTRO_HORDE_7, 43800, 0, PHASE_INTRO_H);
                             _events.ScheduleEvent(EVENT_INTRO_HORDE_8, 47000, 0, PHASE_INTRO_H);
-                            if (Creature* deathbringer = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_DEATHBRINGER_SAURFANG)))
+                            if (Creature* deathbringer = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_DEATHBRINGER_SAURFANG)))
                                 deathbringer->AI()->DoAction(ACTION_CONTINUE_INTRO);
                             break;
                         case POINT_CORPSE:
-                            if (Creature* deathbringer = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_DEATHBRINGER_SAURFANG)))
+                            if (Creature* deathbringer = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_DEATHBRINGER_SAURFANG)))
                             {
                                 deathbringer->CastSpell(me, SPELL_RIDE_VEHICLE, true);  // for the packet logs.
                                 deathbringer->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
@@ -717,7 +717,7 @@ class npc_high_overlord_saurfang_icc : public CreatureScript
                             _events.ScheduleEvent(EVENT_OUTRO_HORDE_6, 4000);    // say
                             break;
                         case POINT_FINAL:
-                            if (Creature* deathbringer = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_DEATHBRINGER_SAURFANG)))
+                            if (Creature* deathbringer = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_DEATHBRINGER_SAURFANG)))
                                 deathbringer->DespawnOrUnsummon();
                             me->DespawnOrUnsummon();
                             break;
@@ -762,7 +762,7 @@ class npc_high_overlord_saurfang_icc : public CreatureScript
                             me->GetMotionMaster()->MoveCharge(chargePos[0].GetPositionX(), chargePos[0].GetPositionY(), chargePos[0].GetPositionZ(), 8.5f, POINT_CHARGE);
                             break;
                         case EVENT_OUTRO_HORDE_2:   // say
-                            if (Creature* deathbringer = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_DEATHBRINGER_SAURFANG)))
+                            if (Creature* deathbringer = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_DEATHBRINGER_SAURFANG)))
                                 me->SetFacingToObject(deathbringer);
                             Talk(SAY_OUTRO_HORDE_2);
                             break;
@@ -770,7 +770,7 @@ class npc_high_overlord_saurfang_icc : public CreatureScript
                             Talk(SAY_OUTRO_HORDE_3);
                             break;
                         case EVENT_OUTRO_HORDE_4:   // move
-                            if (Creature* deathbringer = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_DEATHBRINGER_SAURFANG)))
+                            if (Creature* deathbringer = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_DEATHBRINGER_SAURFANG)))
                             {
                                 float x, y, z;
                                 deathbringer->GetClosePoint(x, y, z, deathbringer->GetObjectSize());
@@ -859,8 +859,8 @@ class npc_muradin_bronzebeard_icc : public CreatureScript
                         me->RemoveFlag(UNIT_NPC_FLAGS, UNIT_NPC_FLAG_GOSSIP);
                         Talk(SAY_INTRO_ALLIANCE_1);
                         _events.ScheduleEvent(EVENT_INTRO_ALLIANCE_4, 2500+17500+9500, 0, PHASE_INTRO_A);
-                        _instance->HandleGameObject(_instance->GetData64(GO_SAURFANG_S_DOOR), true);
-                        if (Creature* deathbringer = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_DEATHBRINGER_SAURFANG)))
+                        _instance->HandleGameObject(_instance->GetGuidData(GO_SAURFANG_S_DOOR), true);
+                        if (Creature* deathbringer = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_DEATHBRINGER_SAURFANG)))
                             deathbringer->AI()->DoAction(PHASE_INTRO_A);
                         break;
                     }
@@ -874,7 +874,7 @@ class npc_muradin_bronzebeard_icc : public CreatureScript
                             (*itr)->AI()->DoAction(ACTION_DESPAWN);
 
                         // temp until outro fully done - to put deathbringer on respawn timer (until next reset)
-                        if (Creature* deathbringer = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_DEATHBRINGER_SAURFANG)))
+                        if (Creature* deathbringer = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_DEATHBRINGER_SAURFANG)))
                             deathbringer->DespawnOrUnsummon(5000);
                         break;
                     }
@@ -902,7 +902,7 @@ class npc_muradin_bronzebeard_icc : public CreatureScript
                     me->SetWalk(false);
                     Talk(SAY_INTRO_ALLIANCE_4);
                     _events.ScheduleEvent(EVENT_INTRO_ALLIANCE_5, 5000, 0, PHASE_INTRO_A);
-                    if (Creature* deathbringer = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_DEATHBRINGER_SAURFANG)))
+                    if (Creature* deathbringer = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_DEATHBRINGER_SAURFANG)))
                         deathbringer->AI()->DoAction(ACTION_CONTINUE_INTRO);
                 }
                 else if (type == WAYPOINT_MOTION_TYPE && id == POINT_EXIT)
diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_festergut.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_festergut.cpp
index 90d91199e7a..b1f6a4a5e83 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_festergut.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_festergut.cpp
@@ -88,7 +88,6 @@ class boss_festergut : public CreatureScript
             {
                 _maxInoculatedStack = 0;
                 _inhaleCounter = 0;
-                _gasDummyGUID = 0;
             }
 
             void Reset() override
@@ -126,7 +125,7 @@ class boss_festergut : public CreatureScript
                 Talk(SAY_AGGRO);
                 if (Creature* gasDummy = me->FindNearestCreature(NPC_GAS_DUMMY, 100.0f, true))
                     _gasDummyGUID = gasDummy->GetGUID();
-                if (Creature* professor = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_PROFESSOR_PUTRICIDE)))
+                if (Creature* professor = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_PROFESSOR_PUTRICIDE)))
                     professor->AI()->DoAction(ACTION_FESTERGUT_COMBAT);
                 DoZoneInCombat();
             }
@@ -135,7 +134,7 @@ class boss_festergut : public CreatureScript
             {
                 _JustDied();
                 Talk(SAY_DEATH);
-                if (Creature* professor = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_PROFESSOR_PUTRICIDE)))
+                if (Creature* professor = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_PROFESSOR_PUTRICIDE)))
                     professor->AI()->DoAction(ACTION_FESTERGUT_DEATH);
 
                 RemoveBlight();
@@ -150,7 +149,7 @@ class boss_festergut : public CreatureScript
             void EnterEvadeMode() override
             {
                 ScriptedAI::EnterEvadeMode();
-                if (Creature* professor = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_PROFESSOR_PUTRICIDE)))
+                if (Creature* professor = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_PROFESSOR_PUTRICIDE)))
                     professor->AI()->EnterEvadeMode();
             }
 
@@ -189,7 +188,7 @@ class boss_festergut : public CreatureScript
                                 Talk(SAY_PUNGENT_BLIGHT);
                                 DoCast(me, SPELL_PUNGENT_BLIGHT);
                                 _inhaleCounter = 0;
-                                if (Creature* professor = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_PROFESSOR_PUTRICIDE)))
+                                if (Creature* professor = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_PROFESSOR_PUTRICIDE)))
                                     professor->AI()->DoAction(ACTION_FESTERGUT_GAS);
                                 events.RescheduleEvent(EVENT_GAS_SPORE, urand(20000, 25000));
                             }
@@ -279,7 +278,7 @@ class boss_festergut : public CreatureScript
             }
 
         private:
-            uint64 _gasDummyGUID;
+            ObjectGuid _gasDummyGUID;
             uint32 _maxInoculatedStack;
             uint32 _inhaleCounter;
         };
@@ -346,7 +345,7 @@ class npc_stinky_icc : public CreatureScript
 
             void JustDied(Unit* /*killer*/) override
             {
-                if (Creature* festergut = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_FESTERGUT)))
+                if (Creature* festergut = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_FESTERGUT)))
                     if (festergut->IsAlive())
                         festergut->AI()->Talk(SAY_STINKY_DEAD);
             }
@@ -456,7 +455,7 @@ class spell_festergut_blighted_spores : public SpellScriptLoader
             {
                 GetTarget()->CastSpell(GetTarget(), SPELL_INOCULATED, true);
                 if (InstanceScript* instance = GetTarget()->GetInstanceScript())
-                    if (Creature* festergut = ObjectAccessor::GetCreature(*GetTarget(), instance->GetData64(DATA_FESTERGUT)))
+                    if (Creature* festergut = ObjectAccessor::GetCreature(*GetTarget(), instance->GetGuidData(DATA_FESTERGUT)))
                         festergut->AI()->SetData(DATA_INOCULATED_STACK, GetStackAmount());
 
                 HandleResidue();
diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_icecrown_gunship_battle.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_icecrown_gunship_battle.cpp
index 535ace3259c..74a09887dd2 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_icecrown_gunship_battle.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_icecrown_gunship_battle.cpp
@@ -383,7 +383,9 @@ public:
     void ResetSlots(uint32 team)
     {
         _transport = NULL;
-        memset(_controlledSlots, 0, sizeof(uint64)* MAX_SLOTS);
+        for (uint32 i = 0; i < MAX_SLOTS; ++i)
+            _controlledSlots[i].Clear();
+
         memset(_respawnCooldowns, 0, sizeof(time_t)* MAX_SLOTS);
         _spawnPoint = team == HORDE ? &OrgrimsHammerAddsSpawnPos : &SkybreakerAddsSpawnPos;
         _slotInfo = team == HORDE ? OrgrimsHammerSlotInfo : SkybreakerSlotInfo;
@@ -422,7 +424,7 @@ public:
 
     void ClearSlot(PassengerSlots slot)
     {
-        _controlledSlots[slot] = 0;
+        _controlledSlots[slot].Clear();
         _respawnCooldowns[slot] = time(NULL) + _slotInfo[slot].Cooldown;
     }
 
@@ -448,7 +450,7 @@ private:
     }
 
     Transport* _transport;
-    uint64 _controlledSlots[MAX_SLOTS];
+    ObjectGuid _controlledSlots[MAX_SLOTS];
     time_t _respawnCooldowns[MAX_SLOTS];
     Position const* _spawnPoint;
     SlotInfo const* _slotInfo;
@@ -482,7 +484,7 @@ private:
 class ResetEncounterEvent : public BasicEvent
 {
 public:
-    ResetEncounterEvent(Unit* caster, uint32 spellId, uint64 otherTransport) : _caster(caster), _spellId(spellId), _otherTransport(otherTransport) { }
+    ResetEncounterEvent(Unit* caster, uint32 spellId, ObjectGuid otherTransport) : _caster(caster), _spellId(spellId), _otherTransport(otherTransport) { }
 
     bool Execute(uint64, uint32) override
     {
@@ -498,7 +500,7 @@ public:
 private:
     Unit* _caster;
     uint32 _spellId;
-    uint64 _otherTransport;
+    ObjectGuid _otherTransport;
 };
 
 class BattleExperienceEvent : public BasicEvent
@@ -744,7 +746,7 @@ class npc_gunship : public CreatureScript
                         cannon->CastSpell(cannon, SPELL_EJECT_ALL_PASSENGERS_BELOW_ZERO, TRIGGERED_FULL_MASK);
 
                         WorldPacket data(SMSG_PLAYER_VEHICLE_DATA, cannon->GetPackGUID().size() + 4);
-                        data.append(cannon->GetPackGUID());
+                        data << cannon->GetPackGUID();
                         data << uint32(0);
                         cannon->SendMessageToSet(&data, true);
 
@@ -767,7 +769,7 @@ class npc_gunship : public CreatureScript
 
                 if (isVictory)
                 {
-                    if (GameObject* go = HashMapHolder<GameObject>::Find(instance->GetData64(DATA_ICECROWN_GUNSHIP_BATTLE)))
+                    if (GameObject* go = HashMapHolder<GameObject>::Find(instance->GetGuidData(DATA_ICECROWN_GUNSHIP_BATTLE)))
                         if (Transport* otherTransport = go->ToTransport())
                             otherTransport->EnableMovement(true);
 
@@ -791,17 +793,17 @@ class npc_gunship : public CreatureScript
                 else
                 {
                     uint32 teleportSpellId = _teamInInstance == HORDE ? SPELL_TELEPORT_PLAYERS_ON_RESET_H : SPELL_TELEPORT_PLAYERS_ON_RESET_A;
-                    me->m_Events.AddEvent(new ResetEncounterEvent(me, teleportSpellId, me->GetInstanceScript()->GetData64(DATA_ENEMY_GUNSHIP)),
+                    me->m_Events.AddEvent(new ResetEncounterEvent(me, teleportSpellId, me->GetInstanceScript()->GetGuidData(DATA_ENEMY_GUNSHIP)),
                         me->m_Events.CalculateTime(8000));
                 }
             }
 
-            void SetGUID(uint64 guid, int32 id/* = 0*/) override
+            void SetGUID(ObjectGuid guid, int32 id/* = 0*/) override
             {
                 if (id != ACTION_SHIP_VISITS)
                     return;
 
-                std::map<uint64, uint32>::iterator itr = _shipVisits.find(guid);
+                std::map<ObjectGuid, uint32>::iterator itr = _shipVisits.find(guid);
                 if (itr == _shipVisits.end())
                     _shipVisits[guid] = 1;
                 else
@@ -814,7 +816,7 @@ class npc_gunship : public CreatureScript
                     return 0;
 
                 uint32 max = 0;
-                for (std::map<uint64, uint32>::const_iterator itr = _shipVisits.begin(); itr != _shipVisits.end(); ++itr)
+                for (std::map<ObjectGuid, uint32>::const_iterator itr = _shipVisits.begin(); itr != _shipVisits.end(); ++itr)
                     max = std::max(max, itr->second);
 
                 return max;
@@ -822,7 +824,7 @@ class npc_gunship : public CreatureScript
 
         private:
             uint32 _teamInInstance;
-            std::map<uint64, uint32> _shipVisits;
+            std::map<ObjectGuid, uint32> _shipVisits;
             bool _summonedFirstMage;
             bool _died;
         };
@@ -1032,7 +1034,7 @@ class npc_high_overlord_saurfang_igb : public CreatureScript
                             if (Transport* orgrimsHammer = me->GetTransport())
                                 orgrimsHammer->SummonPassenger(NPC_TELEPORT_PORTAL, OrgrimsHammerTeleportPortal, TEMPSUMMON_TIMED_DESPAWN, NULL, 21000);
 
-                            if (GameObject* go = HashMapHolder<GameObject>::Find(_instance->GetData64(DATA_ICECROWN_GUNSHIP_BATTLE)))
+                            if (GameObject* go = HashMapHolder<GameObject>::Find(_instance->GetGuidData(DATA_ICECROWN_GUNSHIP_BATTLE)))
                                 if (Transport* skybreaker = go->ToTransport())
                                     skybreaker->SummonPassenger(NPC_TELEPORT_EXIT, SkybreakerTeleportExit, TEMPSUMMON_TIMED_DESPAWN, NULL, 23000);
 
@@ -1305,7 +1307,7 @@ class npc_muradin_bronzebeard_igb : public CreatureScript
                             if (Transport* skybreaker = me->GetTransport())
                                 skybreaker->SummonPassenger(NPC_TELEPORT_PORTAL, SkybreakerTeleportPortal, TEMPSUMMON_TIMED_DESPAWN, NULL, 21000);
 
-                            if (GameObject* go = HashMapHolder<GameObject>::Find(_instance->GetData64(DATA_ICECROWN_GUNSHIP_BATTLE)))
+                            if (GameObject* go = HashMapHolder<GameObject>::Find(_instance->GetGuidData(DATA_ICECROWN_GUNSHIP_BATTLE)))
                                 if (Transport* orgrimsHammer = go->ToTransport())
                                     orgrimsHammer->SummonPassenger(NPC_TELEPORT_EXIT, OrgrimsHammerTeleportExit, TEMPSUMMON_TIMED_DESPAWN, NULL, 23000);
 
@@ -1451,7 +1453,7 @@ struct npc_gunship_boarding_addAI : public gunship_npc_AI
             if (!myTransport)
                 return;
 
-            if (GameObject* go = HashMapHolder<GameObject>::Find(Instance->GetData64(DATA_ICECROWN_GUNSHIP_BATTLE)))
+            if (GameObject* go = HashMapHolder<GameObject>::Find(Instance->GetGuidData(DATA_ICECROWN_GUNSHIP_BATTLE)))
                 if (Transport* destTransport = go->ToTransport())
                     destTransport->CalculatePassengerPosition(x, y, z, &o);
 
@@ -2085,7 +2087,7 @@ class spell_igb_overheat : public SpellScriptLoader
                         if (Player* player = passenger->ToPlayer())
                         {
                             WorldPacket data(SMSG_CLIENT_CONTROL_UPDATE, GetUnitOwner()->GetPackGUID().size() + 1);
-                            data.append(GetUnitOwner()->GetPackGUID());
+                            data << GetUnitOwner()->GetPackGUID();
                             data << uint8(value);
                             player->GetSession()->SendPacket(&data);
                         }
@@ -2335,7 +2337,7 @@ class spell_igb_gunship_fall_teleport : public SpellScriptLoader
             void SelectTransport(WorldObject*& target)
             {
                 if (InstanceScript* instance = target->GetInstanceScript())
-                    target = HashMapHolder<GameObject>::Find(instance->GetData64(DATA_ICECROWN_GUNSHIP_BATTLE));
+                    target = HashMapHolder<GameObject>::Find(instance->GetGuidData(DATA_ICECROWN_GUNSHIP_BATTLE));
             }
 
             void RelocateDest(SpellEffIndex /*effIndex*/)
@@ -2426,7 +2428,7 @@ class spell_igb_teleport_players_on_victory : public SpellScriptLoader
                 InstanceScript* instance = GetCaster()->GetInstanceScript();
                 targets.remove_if([instance](WorldObject* target) -> bool
                 {
-                    return target->GetTransGUID() != instance->GetData64(DATA_ENEMY_GUNSHIP);
+                    return target->GetTransGUID() != instance->GetGuidData(DATA_ENEMY_GUNSHIP);
                 });
             }
 
diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_lady_deathwhisper.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_lady_deathwhisper.cpp
index 6cc86ff0096..3e78865c924 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_lady_deathwhisper.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_lady_deathwhisper.cpp
@@ -224,8 +224,8 @@ class boss_lady_deathwhisper : public CreatureScript
             void Initialize()
             {
                 _waveCounter = 0;
-                _nextVengefulShadeTargetGUID = 0;
-                _darnavanGUID = 0;
+                _nextVengefulShadeTargetGUID.Clear();
+                _darnavanGUID.Clear();
             }
 
             void Reset() override
@@ -329,10 +329,10 @@ class boss_lady_deathwhisper : public CreatureScript
                             {
                                 for (GroupReference* itr = group->GetFirstMember(); itr != NULL; itr = itr->next())
                                     if (Player* member = itr->GetSource())
-                                        member->KilledMonsterCredit(NPC_DARNAVAN_CREDIT, 0);
+                                        member->KilledMonsterCredit(NPC_DARNAVAN_CREDIT);
                             }
                             else
-                                owner->KilledMonsterCredit(NPC_DARNAVAN_CREDIT, 0);
+                                owner->KilledMonsterCredit(NPC_DARNAVAN_CREDIT);
                         }
                     }
                 }
@@ -349,7 +349,7 @@ class boss_lady_deathwhisper : public CreatureScript
                 if (Creature* darnavan = ObjectAccessor::GetCreature(*me, _darnavanGUID))
                 {
                     darnavan->DespawnOrUnsummon();
-                    _darnavanGUID = 0;
+                    _darnavanGUID.Clear();
                 }
             }
 
@@ -396,7 +396,7 @@ class boss_lady_deathwhisper : public CreatureScript
                 if (summon->GetEntry() == NPC_VENGEFUL_SHADE)
                 {
                     target = ObjectAccessor::GetUnit(*me, _nextVengefulShadeTargetGUID);   // Vengeful Shade
-                    _nextVengefulShadeTargetGUID = 0;
+                    _nextVengefulShadeTargetGUID.Clear();
                 }
                 else
                     target = SelectTarget(SELECT_TARGET_RANDOM);                        // Wave adds
@@ -554,7 +554,7 @@ class boss_lady_deathwhisper : public CreatureScript
                     summon->CastSpell(summon, SPELL_TELEPORT_VISUAL);
             }
 
-            void SetGUID(uint64 guid, int32 id/* = 0*/) override
+            void SetGUID(ObjectGuid guid, int32 id/* = 0*/) override
             {
                 if (id != GUID_CULTIST)
                     return;
@@ -568,7 +568,7 @@ class boss_lady_deathwhisper : public CreatureScript
                 if (_reanimationQueue.empty())
                     return;
 
-                uint64 cultistGUID = _reanimationQueue.front();
+                ObjectGuid cultistGUID = _reanimationQueue.front();
                 Creature* cultist = ObjectAccessor::GetCreature(*me, cultistGUID);
                 _reanimationQueue.pop_front();
                 if (!cultist)
@@ -615,9 +615,9 @@ class boss_lady_deathwhisper : public CreatureScript
             }
 
         private:
-            uint64 _nextVengefulShadeTargetGUID;
-            uint64 _darnavanGUID;
-            std::deque<uint64> _reanimationQueue;
+            ObjectGuid _nextVengefulShadeTargetGUID;
+            ObjectGuid _darnavanGUID;
+            GuidDeque _reanimationQueue;
             uint32 _waveCounter;
             uint8 const _dominateMindCount;
             bool _introDone;
diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_lord_marrowgar.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_lord_marrowgar.cpp
index b7bf27177ea..7ab8c956757 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_lord_marrowgar.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_lord_marrowgar.cpp
@@ -133,7 +133,6 @@ class boss_lord_marrowgar : public CreatureScript
                 _coldflameLastPos.Relocate(creature);
                 _introDone = false;
                 _boneSlice = false;
-                _coldflameTarget = 0;
             }
 
             void Reset() override
@@ -211,7 +210,7 @@ class boss_lord_marrowgar : public CreatureScript
                             break;
                         case EVENT_COLDFLAME:
                             _coldflameLastPos.Relocate(me);
-                            _coldflameTarget = 0LL;
+                            _coldflameTarget.Clear();
                             if (!me->HasAura(SPELL_BONE_STORM))
                                 DoCastAOE(SPELL_COLDFLAME_NORMAL);
                             else
@@ -289,7 +288,7 @@ class boss_lord_marrowgar : public CreatureScript
                 return &_coldflameLastPos;
             }
 
-            uint64 GetGUID(int32 type /*= 0 */) const override
+            ObjectGuid GetGUID(int32 type /*= 0 */) const override
             {
                 switch (type)
                 {
@@ -307,10 +306,10 @@ class boss_lord_marrowgar : public CreatureScript
                     }
                 }
 
-                return 0LL;
+                return ObjectGuid::Empty;
             }
 
-            void SetGUID(uint64 guid, int32 type /*= 0 */) override
+            void SetGUID(ObjectGuid guid, int32 type /*= 0 */) override
             {
                 switch (type)
                 {
@@ -333,8 +332,8 @@ class boss_lord_marrowgar : public CreatureScript
 
         private:
             Position _coldflameLastPos;
-            std::vector<uint64> _boneSpikeImmune;
-            uint64 _coldflameTarget;
+            GuidVector _boneSpikeImmune;
+            ObjectGuid _coldflameTarget;
             uint32 _boneStormDuration;
             float _baseSpeed;
             bool _introDone;
diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_professor_putricide.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_professor_putricide.cpp
index c1a13c90780..2e353e5f9dc 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_professor_putricide.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_professor_putricide.cpp
@@ -174,7 +174,7 @@ class AbominationDespawner
     public:
         explicit AbominationDespawner(Unit* owner) : _owner(owner) { }
 
-        bool operator()(uint64 guid)
+        bool operator()(ObjectGuid guid)
         {
             if (Unit* summon = ObjectAccessor::GetUnit(*_owner, guid))
             {
@@ -373,7 +373,7 @@ class boss_professor_putricide : public CreatureScript
                         instance->SetBossState(DATA_FESTERGUT, IN_PROGRESS); // needed here for delayed gate close
                         me->SetSpeed(MOVE_RUN, _baseSpeed, true);
                         DoAction(ACTION_FESTERGUT_GAS);
-                        if (Creature* festergut = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_FESTERGUT)))
+                        if (Creature* festergut = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_FESTERGUT)))
                             festergut->CastSpell(festergut, SPELL_GASEOUS_BLIGHT_LARGE, false, NULL, NULL, festergut->GetGUID());
                         break;
                     case POINT_ROTFACE:
@@ -386,7 +386,7 @@ class boss_professor_putricide : public CreatureScript
                         // stop attack
                         me->GetMotionMaster()->MoveIdle();
                         me->SetSpeed(MOVE_RUN, _baseSpeed, true);
-                        if (GameObject* table = ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_PUTRICIDE_TABLE)))
+                        if (GameObject* table = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_PUTRICIDE_TABLE)))
                             me->SetFacingToObject(table);
                         // operating on new phase already
                         switch (_phase)
@@ -443,7 +443,7 @@ class boss_professor_putricide : public CreatureScript
                         _oozeFloodStage = 0;
                         DoZoneInCombat(me);
                         // init random sequence of floods
-                        if (Creature* rotface = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_ROTFACE)))
+                        if (Creature* rotface = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_ROTFACE)))
                         {
                             std::list<Creature*> list;
                             GetCreatureListWithEntryInGrid(list, rotface, NPC_PUDDLE_STALKER, 50.0f);
@@ -702,7 +702,7 @@ class boss_professor_putricide : public CreatureScript
                 events.SetPhase(newPhase);
             }
 
-            uint64 _oozeFloodDummyGUIDs[4];
+            ObjectGuid _oozeFloodDummyGUIDs[4];
             Phases _phase;          // external of EventMap because event phase gets reset on evade
             float const _baseSpeed;
             uint8 _oozeFloodStage;
@@ -1152,7 +1152,7 @@ class spell_putricide_unbound_plague : public SpellScriptLoader
 
                 if (!GetHitUnit()->HasAura(plagueId))
                 {
-                    if (Creature* professor = ObjectAccessor::GetCreature(*GetCaster(), instance->GetData64(DATA_PROFESSOR_PUTRICIDE)))
+                    if (Creature* professor = ObjectAccessor::GetCreature(*GetCaster(), instance->GetGuidData(DATA_PROFESSOR_PUTRICIDE)))
                     {
                         if (Aura* oldPlague = GetCaster()->GetAura(plagueId, professor->GetGUID()))
                         {
@@ -1307,7 +1307,7 @@ class spell_putricide_mutation_init : public SpellScriptLoader
                 if (!instance)
                     return SPELL_FAILED_CANT_DO_THAT_RIGHT_NOW;
 
-                Creature* professor = ObjectAccessor::GetCreature(*GetExplTargetUnit(), instance->GetData64(DATA_PROFESSOR_PUTRICIDE));
+                Creature* professor = ObjectAccessor::GetCreature(*GetExplTargetUnit(), instance->GetGuidData(DATA_PROFESSOR_PUTRICIDE));
                 if (!professor)
                     return SPELL_FAILED_CANT_DO_THAT_RIGHT_NOW;
 
@@ -1428,7 +1428,7 @@ class spell_putricide_mutated_transformation : public SpellScriptLoader
                 if (!instance)
                     return;
 
-                Creature* putricide = ObjectAccessor::GetCreature(*caster, instance->GetData64(DATA_PROFESSOR_PUTRICIDE));
+                Creature* putricide = ObjectAccessor::GetCreature(*caster, instance->GetGuidData(DATA_PROFESSOR_PUTRICIDE));
                 if (!putricide)
                     return;
 
diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_rotface.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_rotface.cpp
index 2f2889a9cf3..205b90fa159 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_rotface.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_rotface.cpp
@@ -126,7 +126,7 @@ class boss_rotface : public CreatureScript
 
                 me->setActive(true);
                 Talk(SAY_AGGRO);
-                if (Creature* professor = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_PROFESSOR_PUTRICIDE)))
+                if (Creature* professor = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_PROFESSOR_PUTRICIDE)))
                     professor->AI()->DoAction(ACTION_ROTFACE_COMBAT);
 
                 DoZoneInCombat();
@@ -138,7 +138,7 @@ class boss_rotface : public CreatureScript
                 instance->DoRemoveAurasDueToSpellOnPlayers(MUTATED_INFECTION);
                 _JustDied();
                 Talk(SAY_DEATH);
-                if (Creature* professor = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_PROFESSOR_PUTRICIDE)))
+                if (Creature* professor = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_PROFESSOR_PUTRICIDE)))
                     professor->AI()->DoAction(ACTION_ROTFACE_DEATH);
             }
 
@@ -158,7 +158,7 @@ class boss_rotface : public CreatureScript
             void EnterEvadeMode() override
             {
                 ScriptedAI::EnterEvadeMode();
-                if (Creature* professor = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_PROFESSOR_PUTRICIDE)))
+                if (Creature* professor = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_PROFESSOR_PUTRICIDE)))
                     professor->AI()->EnterEvadeMode();
             }
 
@@ -176,7 +176,7 @@ class boss_rotface : public CreatureScript
             void JustSummoned(Creature* summon) override
             {
                 if (summon->GetEntry() == NPC_VILE_GAS_STALKER)
-                    if (Creature* professor = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_PROFESSOR_PUTRICIDE)))
+                    if (Creature* professor = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_PROFESSOR_PUTRICIDE)))
                         professor->CastSpell(summon, SPELL_VILE_GAS_H, true);
             }
 
@@ -308,13 +308,13 @@ class npc_big_ooze : public CreatureScript
                 DoCast(me, SPELL_GREEN_ABOMINATION_HITTIN__YA_PROC, true);
                 events.ScheduleEvent(EVENT_STICKY_OOZE, 5000);
                 // register in Rotface's summons - not summoned with Rotface as owner
-                if (Creature* rotface = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_ROTFACE)))
+                if (Creature* rotface = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_ROTFACE)))
                     rotface->AI()->JustSummoned(me);
             }
 
             void JustDied(Unit* /*killer*/) override
             {
-                if (Creature* rotface = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_ROTFACE)))
+                if (Creature* rotface = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_ROTFACE)))
                     rotface->AI()->SummonedCreatureDespawn(me);
                 me->DespawnOrUnsummon();
             }
@@ -395,7 +395,7 @@ class npc_precious_icc : public CreatureScript
             void JustDied(Unit* /*killer*/) override
             {
                 _summons.DespawnAll();
-                if (Creature* rotface = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_ROTFACE)))
+                if (Creature* rotface = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_ROTFACE)))
                     if (rotface->IsAlive())
                         rotface->AI()->Talk(SAY_PRECIOUS_DIES);
             }
@@ -469,7 +469,7 @@ class spell_rotface_ooze_flood : public SpellScriptLoader
                     return;
 
                 triggers.sort(Trinity::ObjectDistanceOrderPred(GetHitUnit()));
-                GetHitUnit()->CastSpell(triggers.back(), uint32(GetEffectValue()), false, NULL, NULL, GetOriginalCaster() ? GetOriginalCaster()->GetGUID() : 0);
+                GetHitUnit()->CastSpell(triggers.back(), uint32(GetEffectValue()), false, NULL, NULL, GetOriginalCaster() ? GetOriginalCaster()->GetGUID() : ObjectGuid::Empty);
             }
 
             void FilterTargets(std::list<WorldObject*>& targets)
@@ -657,7 +657,7 @@ class spell_rotface_large_ooze_buff_combine : public SpellScriptLoader
                         GetCaster()->RemoveAurasDueToSpell(SPELL_LARGE_OOZE_BUFF_COMBINE);
                         GetCaster()->RemoveAurasDueToSpell(SPELL_LARGE_OOZE_COMBINE);
                         if (InstanceScript* instance = GetCaster()->GetInstanceScript())
-                            if (Creature* rotface = ObjectAccessor::GetCreature(*GetCaster(), instance->GetData64(DATA_ROTFACE)))
+                            if (Creature* rotface = ObjectAccessor::GetCreature(*GetCaster(), instance->GetGuidData(DATA_ROTFACE)))
                                 if (rotface->IsAlive())
                                 {
                                     rotface->AI()->Talk(EMOTE_UNSTABLE_EXPLOSION);
@@ -748,7 +748,7 @@ class spell_rotface_unstable_ooze_explosion : public SpellScriptLoader
                 GetExplTargetDest()->GetPosition(x, y, z);
                 // let Rotface handle the cast - caster dies before this executes
                 if (InstanceScript* script = GetCaster()->GetInstanceScript())
-                    if (Creature* rotface = script->instance->GetCreature(script->GetData64(DATA_ROTFACE)))
+                    if (Creature* rotface = script->instance->GetCreature(script->GetGuidData(DATA_ROTFACE)))
                         rotface->CastSpell(x, y, z, triggered_spell_id, true, NULL, NULL, GetCaster()->GetGUID());
             }
 
diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_sindragosa.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_sindragosa.cpp
index 3b65c10aaa9..551ec9ad0a2 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_sindragosa.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_sindragosa.cpp
@@ -182,7 +182,7 @@ class FrostwyrmLandEvent : public BasicEvent
 class FrostBombExplosion : public BasicEvent
 {
     public:
-        FrostBombExplosion(Creature* owner, uint64 sindragosaGUID) : _owner(owner), _sindragosaGUID(sindragosaGUID) { }
+        FrostBombExplosion(Creature* owner, ObjectGuid sindragosaGUID) : _owner(owner), _sindragosaGUID(sindragosaGUID) { }
 
         bool Execute(uint64 /*eventTime*/, uint32 /*updateTime*/)
         {
@@ -193,7 +193,7 @@ class FrostBombExplosion : public BasicEvent
 
     private:
         Creature* _owner;
-        uint64 _sindragosaGUID;
+        ObjectGuid _sindragosaGUID;
 };
 
 class FrostBeaconSelector
@@ -563,7 +563,6 @@ class npc_ice_tomb : public CreatureScript
         {
             npc_ice_tombAI(Creature* creature) : ScriptedAI(creature)
             {
-                _trappedPlayerGUID = 0;
                 _existenceCheckTimer = 0;
                 SetCombatMovement(false);
             }
@@ -573,7 +572,7 @@ class npc_ice_tomb : public CreatureScript
                 me->SetReactState(REACT_PASSIVE);
             }
 
-            void SetGUID(uint64 guid, int32 type/* = 0 */) override
+            void SetGUID(ObjectGuid guid, int32 type/* = 0 */) override
             {
                 if (type == DATA_TRAPPED_PLAYER)
                 {
@@ -595,7 +594,7 @@ class npc_ice_tomb : public CreatureScript
 
                 if (Player* player = ObjectAccessor::GetPlayer(*me, _trappedPlayerGUID))
                 {
-                    _trappedPlayerGUID = 0;
+                    _trappedPlayerGUID.Clear();
                     player->RemoveAurasDueToSpell(SPELL_ICE_TOMB_DAMAGE);
                     player->RemoveAurasDueToSpell(SPELL_ASPHYXIATION);
                 }
@@ -623,7 +622,7 @@ class npc_ice_tomb : public CreatureScript
             }
 
         private:
-            uint64 _trappedPlayerGUID;
+            ObjectGuid _trappedPlayerGUID;
             uint32 _existenceCheckTimer;
         };
 
@@ -1574,14 +1573,14 @@ class at_sindragosa_lair : public AreaTriggerScript
             if (InstanceScript* instance = player->GetInstanceScript())
             {
                 if (!instance->GetData(DATA_SPINESTALKER))
-                    if (Creature* spinestalker = ObjectAccessor::GetCreature(*player, instance->GetData64(DATA_SPINESTALKER)))
+                    if (Creature* spinestalker = ObjectAccessor::GetCreature(*player, instance->GetGuidData(DATA_SPINESTALKER)))
                         spinestalker->AI()->DoAction(ACTION_START_FROSTWYRM);
 
                 if (!instance->GetData(DATA_RIMEFANG))
-                    if (Creature* rimefang = ObjectAccessor::GetCreature(*player, instance->GetData64(DATA_RIMEFANG)))
+                    if (Creature* rimefang = ObjectAccessor::GetCreature(*player, instance->GetGuidData(DATA_RIMEFANG)))
                         rimefang->AI()->DoAction(ACTION_START_FROSTWYRM);
 
-                if (!instance->GetData(DATA_SINDRAGOSA_FROSTWYRMS) && !instance->GetData64(DATA_SINDRAGOSA) && instance->GetBossState(DATA_SINDRAGOSA) != DONE)
+                if (!instance->GetData(DATA_SINDRAGOSA_FROSTWYRMS) && !instance->GetGuidData(DATA_SINDRAGOSA) && instance->GetBossState(DATA_SINDRAGOSA) != DONE)
                 {
                     if (player->GetMap()->IsHeroic() && !instance->GetData(DATA_HEROIC_ATTEMPTS))
                         return true;
diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_the_lich_king.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_the_lich_king.cpp
index 50e98422481..e67edc473f4 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_the_lich_king.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_the_lich_king.cpp
@@ -546,7 +546,7 @@ class boss_the_lich_king : public CreatureScript
 
                 // Restore Tirion's gossip only after The Lich King fully resets to prevent
                 // restarting the encounter while LK still runs back to spawn point
-                if (Creature* tirion = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_HIGHLORD_TIRION_FORDRING)))
+                if (Creature* tirion = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_HIGHLORD_TIRION_FORDRING)))
                     tirion->SetFlag(UNIT_NPC_FLAGS, UNIT_NPC_FLAG_GOSSIP);
 
                 // Reset any light override
@@ -563,7 +563,7 @@ class boss_the_lich_king : public CreatureScript
             {
                 instance->SetBossState(DATA_THE_LICH_KING, FAIL);
                 BossAI::EnterEvadeMode();
-                if (Creature* tirion = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_HIGHLORD_TIRION_FORDRING)))
+                if (Creature* tirion = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_HIGHLORD_TIRION_FORDRING)))
                     tirion->AI()->EnterEvadeMode();
                 DoCastAOE(SPELL_KILL_FROSTMOURNE_PLAYERS);
                 EntryCheckPredicate pred(NPC_STRANGULATE_VEHICLE);
@@ -802,7 +802,7 @@ class boss_the_lich_king : public CreatureScript
                         events.ScheduleEvent(EVENT_INTRO_MOVE_3, 1, 0, PHASE_INTRO);
                         break;
                     case POINT_LK_INTRO_3:
-                        if (Creature* tirion = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_HIGHLORD_TIRION_FORDRING)))
+                        if (Creature* tirion = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_HIGHLORD_TIRION_FORDRING)))
                             tirion->AI()->DoAction(ACTION_CONTINUE_INTRO);
                         events.ScheduleEvent(EVENT_INTRO_TALK_1, 9000, 0, PHASE_INTRO);
                         break;
@@ -843,7 +843,7 @@ class boss_the_lich_king : public CreatureScript
                         events.ScheduleEvent(EVENT_OUTRO_TALK_5, 29000, 0, PHASE_OUTRO);
                         break;
                     case POINT_LK_OUTRO_2:
-                        if (Creature* tirion = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_HIGHLORD_TIRION_FORDRING)))
+                        if (Creature* tirion = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_HIGHLORD_TIRION_FORDRING)))
                             tirion->AI()->Talk(SAY_TIRION_OUTRO_2);
                         if (Creature* frostmourne = me->FindNearestCreature(NPC_FROSTMOURNE_TRIGGER, 50.0f))
                             frostmourne->AI()->DoAction(ACTION_SUMMON_TERENAS);
@@ -1049,7 +1049,7 @@ class boss_the_lich_king : public CreatureScript
                             me->HandleEmoteCommand(EMOTE_ONESHOT_TALK_NO_SHEATHE);
                             break;
                         case EVENT_OUTRO_TALK_3:
-                            if (Creature* tirion = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_HIGHLORD_TIRION_FORDRING)))
+                            if (Creature* tirion = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_HIGHLORD_TIRION_FORDRING)))
                                 me->SetFacingToObject(tirion);
                             Talk(SAY_LK_OUTRO_3);
                             break;
@@ -1067,12 +1067,12 @@ class boss_the_lich_king : public CreatureScript
                             break;
                         case EVENT_OUTRO_TALK_5:
                             Talk(SAY_LK_OUTRO_5);
-                            if (Creature* tirion = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_HIGHLORD_TIRION_FORDRING)))
+                            if (Creature* tirion = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_HIGHLORD_TIRION_FORDRING)))
                                 tirion->AI()->DoAction(ACTION_OUTRO);
                             break;
                         case EVENT_OUTRO_TALK_6:
                             Talk(SAY_LK_OUTRO_6);
-                            if (Creature* tirion = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_HIGHLORD_TIRION_FORDRING)))
+                            if (Creature* tirion = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_HIGHLORD_TIRION_FORDRING)))
                                 tirion->SetFacingToObject(me);
                             me->CastSpell((Unit*)NULL, SPELL_SUMMON_BROKEN_FROSTMOURNE_3, TRIGGERED_IGNORE_CAST_IN_PROGRESS);
                             SetEquipmentSlots(false, EQUIP_UNEQUIP);
@@ -1142,7 +1142,7 @@ class npc_tirion_fordring_tft : public CreatureScript
                 {
                     case POINT_TIRION_INTRO:
                         me->SetUInt32Value(UNIT_NPC_EMOTESTATE, EMOTE_STATE_READY2H);
-                        if (Creature* theLichKing = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_THE_LICH_KING)))
+                        if (Creature* theLichKing = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_THE_LICH_KING)))
                             theLichKing->AI()->DoAction(ACTION_START_ENCOUNTER);
                         break;
                     case POINT_TIRION_OUTRO_1:
@@ -1228,7 +1228,7 @@ class npc_tirion_fordring_tft : public CreatureScript
                         case EVENT_OUTRO_REMOVE_ICE:
                             me->RemoveAurasDueToSpell(SPELL_ICE_LOCK);
                             SetEquipmentSlots(false, EQUIP_ASHBRINGER_GLOWING);
-                            if (Creature* lichKing = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_THE_LICH_KING)))
+                            if (Creature* lichKing = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_THE_LICH_KING)))
                             {
                                 me->SetFacingToObject(lichKing);
                                 lichKing->AI()->DoAction(ACTION_PLAY_MUSIC);
@@ -1355,13 +1355,13 @@ class npc_raging_spirit : public CreatureScript
             void IsSummonedBy(Unit* /*summoner*/) override
             {
                 // player is the spellcaster so register summon manually
-                if (Creature* lichKing = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_THE_LICH_KING)))
+                if (Creature* lichKing = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_THE_LICH_KING)))
                     lichKing->AI()->JustSummoned(me);
             }
 
             void JustDied(Unit* /*killer*/) override
             {
-                if (Creature* lichKing = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_THE_LICH_KING)))
+                if (Creature* lichKing = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_THE_LICH_KING)))
                     lichKing->AI()->SummonedCreatureDespawn(me);
                 if (TempSummon* summon = me->ToTempSummon())
                     summon->SetTempSummonType(TEMPSUMMON_CORPSE_DESPAWN);
@@ -1412,7 +1412,7 @@ class npc_valkyr_shadowguard : public CreatureScript
         struct npc_valkyr_shadowguardAI : public ScriptedAI
         {
             npc_valkyr_shadowguardAI(Creature* creature) : ScriptedAI(creature),
-                _grabbedPlayer(0), _instance(creature->GetInstanceScript())
+                _instance(creature->GetInstanceScript())
             {
             }
 
@@ -1474,7 +1474,7 @@ class npc_valkyr_shadowguard : public CreatureScript
                         if (Player* target = ObjectAccessor::GetPlayer(*me, _grabbedPlayer))
                         {
                             me->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
-                            if (GameObject* platform = ObjectAccessor::GetGameObject(*me, _instance->GetData64(DATA_ARTHAS_PLATFORM)))
+                            if (GameObject* platform = ObjectAccessor::GetGameObject(*me, _instance->GetGuidData(DATA_ARTHAS_PLATFORM)))
                             {
                                 std::list<Creature*> triggers;
                                 GetCreatureListWithEntryInGrid(triggers, me, NPC_WORLD_TRIGGER, 150.0f);
@@ -1497,7 +1497,7 @@ class npc_valkyr_shadowguard : public CreatureScript
                 }
             }
 
-            void SetGUID(uint64 guid, int32 /* = 0*/) override
+            void SetGUID(ObjectGuid guid, int32 /* = 0*/) override
             {
                 _grabbedPlayer = guid;
             }
@@ -1542,7 +1542,7 @@ class npc_valkyr_shadowguard : public CreatureScript
         private:
             EventMap _events;
             Position _dropPoint;
-            uint64 _grabbedPlayer;
+            ObjectGuid _grabbedPlayer;
             InstanceScript* _instance;
         };
 
@@ -1573,7 +1573,7 @@ class npc_strangulate_vehicle : public CreatureScript
                 _events.ScheduleEvent(EVENT_TELEPORT, 6000);
 
                 // this will let us easily access all creatures of this entry on heroic mode when its time to teleport back
-                if (Creature* lichKing = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_THE_LICH_KING)))
+                if (Creature* lichKing = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_THE_LICH_KING)))
                     lichKing->AI()->JustSummoned(me);
             }
 
@@ -1591,7 +1591,7 @@ class npc_strangulate_vehicle : public CreatureScript
                     }
                 }
 
-                if (Creature* lichKing = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_THE_LICH_KING)))
+                if (Creature* lichKing = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_THE_LICH_KING)))
                     lichKing->AI()->SummonedCreatureDespawn(me);
             }
 
@@ -1619,7 +1619,7 @@ class npc_strangulate_vehicle : public CreatureScript
                                     else
                                     {
                                         summoner->CastSpell(summoner, SPELL_HARVEST_SOULS_TELEPORT, true);
-                                        summoner->RemoveAurasDueToSpell(HARVEST_SOUL, 0, 0, AURA_REMOVE_BY_EXPIRE);
+                                        summoner->RemoveAurasDueToSpell(HARVEST_SOUL, ObjectGuid::Empty, 0, AURA_REMOVE_BY_EXPIRE);
                                     }
                                 }
                             }
@@ -1627,7 +1627,7 @@ class npc_strangulate_vehicle : public CreatureScript
                             _events.ScheduleEvent(EVENT_DESPAWN_SELF, 65000);
                             break;
                         case EVENT_MOVE_TO_LICH_KING:
-                            if (Creature* lichKing = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_THE_LICH_KING)))
+                            if (Creature* lichKing = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_THE_LICH_KING)))
                             {
                                 if (me->GetExactDist(lichKing) > 10.0f)
                                 {
@@ -1637,7 +1637,7 @@ class npc_strangulate_vehicle : public CreatureScript
                             }
                             break;
                         case EVENT_DESPAWN_SELF:
-                            if (Creature* lichKing = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_THE_LICH_KING)))
+                            if (Creature* lichKing = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_THE_LICH_KING)))
                                 lichKing->AI()->SummonedCreatureDespawn(me);
                             me->DespawnOrUnsummon(1);
                             break;
@@ -1737,7 +1737,7 @@ class npc_terenas_menethil : public CreatureScript
             {
                 _events.Reset();
                 _events.SetPhase(PHASE_OUTRO);
-                if (Creature* lichKing = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_THE_LICH_KING)))
+                if (Creature* lichKing = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_THE_LICH_KING)))
                     me->SetFacingToObject(lichKing);
 
                 _events.ScheduleEvent(EVENT_OUTRO_TERENAS_TALK_1, 2000, 0, PHASE_OUTRO);
@@ -1771,11 +1771,11 @@ class npc_terenas_menethil : public CreatureScript
                         case EVENT_OUTRO_TERENAS_TALK_2:
                             Talk(SAY_TERENAS_OUTRO_2);
                             DoCastAOE(SPELL_MASS_RESURRECTION);
-                            if (Creature* lichKing = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_THE_LICH_KING)))
+                            if (Creature* lichKing = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_THE_LICH_KING)))
                             {
                                 lichKing->AI()->DoAction(ACTION_FINISH_OUTRO);
                                 lichKing->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_IMMUNE_TO_NPC);
-                                if (Creature* tirion = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_HIGHLORD_TIRION_FORDRING)))
+                                if (Creature* tirion = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_HIGHLORD_TIRION_FORDRING)))
                                     tirion->AI()->AttackStart(lichKing);
                             }
                             break;
@@ -1787,7 +1787,7 @@ class npc_terenas_menethil : public CreatureScript
                             _events.ScheduleEvent(EVENT_TELEPORT_BACK, 1000);
                             break;
                         case EVENT_TELEPORT_BACK:
-                            if (Creature* lichKing = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_THE_LICH_KING)))
+                            if (Creature* lichKing = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_THE_LICH_KING)))
                                 lichKing->AI()->DoAction(ACTION_TELEPORT_BACK);
                             break;
                         default:
@@ -1832,7 +1832,7 @@ class npc_spirit_warden : public CreatureScript
 
             void JustDied(Unit* /*killer*/) override
             {
-                if (Creature* terenas = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_TERENAS_MENETHIL)))
+                if (Creature* terenas = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_TERENAS_MENETHIL)))
                     terenas->AI()->DoAction(ACTION_TELEPORT_BACK);
             }
 
@@ -2267,7 +2267,7 @@ class spell_the_lich_king_quake : public SpellScriptLoader
 
             void FilterTargets(std::list<WorldObject*>& targets)
             {
-                if (GameObject* platform = ObjectAccessor::GetGameObject(*GetCaster(), GetCaster()->GetInstanceScript()->GetData64(DATA_ARTHAS_PLATFORM)))
+                if (GameObject* platform = ObjectAccessor::GetGameObject(*GetCaster(), GetCaster()->GetInstanceScript()->GetGuidData(DATA_ARTHAS_PLATFORM)))
                     targets.remove_if(Trinity::HeightDifferenceCheck(platform, 5.0f, false));
             }
 
@@ -2783,7 +2783,7 @@ class spell_the_lich_king_harvest_soul : public SpellScriptLoader
             {
                 // m_originalCaster to allow stacking from different casters, meh
                 if (GetTargetApplication()->GetRemoveMode() == AURA_REMOVE_BY_DEATH)
-                    GetTarget()->CastSpell((Unit*)NULL, SPELL_HARVESTED_SOUL, true, NULL, NULL, GetTarget()->GetInstanceScript()->GetData64(DATA_THE_LICH_KING));
+                    GetTarget()->CastSpell((Unit*)NULL, SPELL_HARVESTED_SOUL, true, NULL, NULL, GetTarget()->GetInstanceScript()->GetGuidData(DATA_THE_LICH_KING));
             }
 
             void Register() override
@@ -2881,7 +2881,7 @@ class spell_the_lich_king_restore_soul : public SpellScriptLoader
 
             void HandleScript(SpellEffIndex /*effIndex*/)
             {
-                if (Creature* lichKing = ObjectAccessor::GetCreature(*GetCaster(), _instance->GetData64(DATA_THE_LICH_KING)))
+                if (Creature* lichKing = ObjectAccessor::GetCreature(*GetCaster(), _instance->GetGuidData(DATA_THE_LICH_KING)))
                     lichKing->AI()->DoAction(ACTION_TELEPORT_BACK);
                 if (Creature* spawner = GetCaster()->FindNearestCreature(NPC_WORLD_TRIGGER_INFINITE_AOI, 50.0f))
                     spawner->RemoveAllAuras();
@@ -2970,7 +2970,7 @@ class spell_the_lich_king_in_frostmourne_room : public SpellScriptLoader
             {
                 // m_originalCaster to allow stacking from different casters, meh
                 if (GetTargetApplication()->GetRemoveMode() == AURA_REMOVE_BY_DEATH)
-                    GetTarget()->CastSpell((Unit*)NULL, SPELL_HARVESTED_SOUL, true, NULL, NULL, GetTarget()->GetInstanceScript()->GetData64(DATA_THE_LICH_KING));
+                    GetTarget()->CastSpell((Unit*)NULL, SPELL_HARVESTED_SOUL, true, NULL, NULL, GetTarget()->GetInstanceScript()->GetGuidData(DATA_THE_LICH_KING));
             }
 
             void Register() override
diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_valithria_dreamwalker.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_valithria_dreamwalker.cpp
index 6d297252dcb..ec7a937e725 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_valithria_dreamwalker.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_valithria_dreamwalker.cpp
@@ -175,7 +175,7 @@ struct ManaVoidSelector : public std::unary_function<Unit*, bool>
 class DelayedCastEvent : public BasicEvent
 {
     public:
-        DelayedCastEvent(Creature* trigger, uint32 spellId, uint64 originalCaster, uint32 despawnTime) : _trigger(trigger), _originalCaster(originalCaster), _spellId(spellId), _despawnTime(despawnTime)
+        DelayedCastEvent(Creature* trigger, uint32 spellId, ObjectGuid originalCaster, uint32 despawnTime) : _trigger(trigger), _originalCaster(originalCaster), _spellId(spellId), _despawnTime(despawnTime)
         {
         }
 
@@ -189,7 +189,7 @@ class DelayedCastEvent : public BasicEvent
 
     private:
         Creature* _trigger;
-        uint64 _originalCaster;
+        ObjectGuid _originalCaster;
         uint32 _spellId;
         uint32 _despawnTime;
 };
@@ -353,7 +353,7 @@ class boss_valithria_dreamwalker : public CreatureScript
                     DoCast(me, SPELL_ACHIEVEMENT_CHECK);
                     DoCastAOE(SPELL_DREAMWALKERS_RAGE);
                     _events.ScheduleEvent(EVENT_DREAM_SLIP, 3500);
-                    if (Creature* lichKing = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_VALITHRIA_LICH_KING)))
+                    if (Creature* lichKing = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_VALITHRIA_LICH_KING)))
                         lichKing->AI()->EnterEvadeMode();
                 }
                 else if (!_over75PercentTalkDone && me->HealthAbovePctHealed(75, heal))
@@ -384,7 +384,7 @@ class boss_valithria_dreamwalker : public CreatureScript
                             _justDied = true;
                             Talk(SAY_VALITHRIA_DEATH);
                             _instance->SendEncounterUnit(ENCOUNTER_FRAME_DISENGAGE, me);
-                            if (Creature* trigger = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_VALITHRIA_TRIGGER)))
+                            if (Creature* trigger = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_VALITHRIA_TRIGGER)))
                                 trigger->AI()->DoAction(ACTION_DEATH);
                         }
                     }
@@ -401,10 +401,10 @@ class boss_valithria_dreamwalker : public CreatureScript
                     me->SetDisplayId(11686);
                     me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
                     me->DespawnOrUnsummon(4000);
-                    if (Creature* lichKing = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_VALITHRIA_LICH_KING)))
+                    if (Creature* lichKing = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_VALITHRIA_LICH_KING)))
                         lichKing->CastSpell(lichKing, SPELL_SPAWN_CHEST, false);
 
-                    if (Creature* trigger = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_VALITHRIA_TRIGGER)))
+                    if (Creature* trigger = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_VALITHRIA_TRIGGER)))
                         me->Kill(trigger);
                 }
             }
@@ -522,7 +522,7 @@ class npc_green_dragon_combat_trigger : public CreatureScript
                 me->setActive(true);
                 DoZoneInCombat();
                 instance->SetBossState(DATA_VALITHRIA_DREAMWALKER, IN_PROGRESS);
-                if (Creature* valithria = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_VALITHRIA_DREAMWALKER)))
+                if (Creature* valithria = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_VALITHRIA_DREAMWALKER)))
                     valithria->AI()->DoAction(ACTION_ENTER_COMBAT);
             }
 
@@ -721,10 +721,10 @@ class npc_risen_archmage : public CreatureScript
                     for (std::list<Creature*>::iterator itr = archmages.begin(); itr != archmages.end(); ++itr)
                         (*itr)->AI()->DoAction(ACTION_ENTER_COMBAT);
 
-                    if (Creature* lichKing = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_VALITHRIA_LICH_KING)))
+                    if (Creature* lichKing = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_VALITHRIA_LICH_KING)))
                         lichKing->AI()->DoZoneInCombat();
 
-                    if (Creature* trigger = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_VALITHRIA_TRIGGER)))
+                    if (Creature* trigger = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_VALITHRIA_TRIGGER)))
                         trigger->AI()->DoZoneInCombat();
                 }
             }
@@ -742,7 +742,7 @@ class npc_risen_archmage : public CreatureScript
             void JustSummoned(Creature* summon) override
             {
                 if (summon->GetEntry() == NPC_COLUMN_OF_FROST)
-                    summon->m_Events.AddEvent(new DelayedCastEvent(summon, SPELL_COLUMN_OF_FROST_DAMAGE, 0, 8000), summon->m_Events.CalculateTime(2000));
+                    summon->m_Events.AddEvent(new DelayedCastEvent(summon, SPELL_COLUMN_OF_FROST_DAMAGE, ObjectGuid::Empty, 8000), summon->m_Events.CalculateTime(2000));
                 else if (summon->GetEntry() == NPC_MANA_VOID)
                     summon->DespawnOrUnsummon(36000);
             }
@@ -880,7 +880,7 @@ class npc_suppresser : public CreatureScript
 
             void IsSummonedBy(Unit* /*summoner*/) override
             {
-                if (Creature* valithria = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_VALITHRIA_DREAMWALKER)))
+                if (Creature* valithria = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_VALITHRIA_DREAMWALKER)))
                     AttackStart(valithria);
             }
 
@@ -1099,7 +1099,7 @@ class npc_dream_cloud : public CreatureScript
                         case EVENT_EXPLODE:
                             me->GetMotionMaster()->MoveIdle();
                             // must use originalCaster the same for all clouds to allow stacking
-                            me->CastSpell(me, EMERALD_VIGOR, false, NULL, NULL, _instance->GetData64(DATA_VALITHRIA_DREAMWALKER));
+                            me->CastSpell(me, EMERALD_VIGOR, false, NULL, NULL, _instance->GetGuidData(DATA_VALITHRIA_DREAMWALKER));
                             me->DespawnOrUnsummon(100);
                             break;
                         default:
@@ -1220,7 +1220,7 @@ class spell_dreamwalker_summoner : public SpellScriptLoader
                 if (!GetHitUnit())
                     return;
 
-                GetHitUnit()->CastSpell(GetCaster(), GetSpellInfo()->Effects[effIndex].TriggerSpell, true, NULL, NULL, GetCaster()->GetInstanceScript()->GetData64(DATA_VALITHRIA_LICH_KING));
+                GetHitUnit()->CastSpell(GetCaster(), GetSpellInfo()->Effects[effIndex].TriggerSpell, true, NULL, NULL, GetCaster()->GetInstanceScript()->GetGuidData(DATA_VALITHRIA_LICH_KING));
             }
 
             void Register() override
@@ -1299,7 +1299,7 @@ class spell_dreamwalker_summon_suppresser_effect : public SpellScriptLoader
                 if (!GetHitUnit())
                     return;
 
-                GetHitUnit()->CastSpell(GetCaster(), GetSpellInfo()->Effects[effIndex].TriggerSpell, true, NULL, NULL, GetCaster()->GetInstanceScript()->GetData64(DATA_VALITHRIA_LICH_KING));
+                GetHitUnit()->CastSpell(GetCaster(), GetSpellInfo()->Effects[effIndex].TriggerSpell, true, NULL, NULL, GetCaster()->GetInstanceScript()->GetGuidData(DATA_VALITHRIA_LICH_KING));
             }
 
             void Register() override
@@ -1428,7 +1428,7 @@ class spell_dreamwalker_twisted_nightmares : public SpellScriptLoader
                 //    return;
 
                 if (InstanceScript* instance = GetHitUnit()->GetInstanceScript())
-                    GetHitUnit()->CastSpell((Unit*)NULL, GetSpellInfo()->Effects[effIndex].TriggerSpell, true, NULL, NULL, instance->GetData64(DATA_VALITHRIA_DREAMWALKER));
+                    GetHitUnit()->CastSpell((Unit*)NULL, GetSpellInfo()->Effects[effIndex].TriggerSpell, true, NULL, NULL, instance->GetGuidData(DATA_VALITHRIA_DREAMWALKER));
             }
 
             void Register() override
diff --git a/src/server/scripts/Northrend/IcecrownCitadel/icecrown_citadel.cpp b/src/server/scripts/Northrend/IcecrownCitadel/icecrown_citadel.cpp
index 23569ba77c2..c2007730cdc 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/icecrown_citadel.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/icecrown_citadel.cpp
@@ -390,9 +390,9 @@ class npc_highlord_tirion_fordring_lh : public CreatureScript
 
             void Initialize()
             {
-                _theLichKing = 0;
-                _bolvarFordragon = 0;
-                _factionNPC = 0;
+                _theLichKing.Clear();
+                _bolvarFordragon.Clear();
+                _factionNPC.Clear();
                 _damnedKills = 0;
             }
 
@@ -581,9 +581,9 @@ class npc_highlord_tirion_fordring_lh : public CreatureScript
         private:
             EventMap _events;
             InstanceScript* const _instance;
-            uint64 _theLichKing;
-            uint64 _bolvarFordragon;
-            uint64 _factionNPC;
+            ObjectGuid _theLichKing;
+            ObjectGuid _bolvarFordragon;
+            ObjectGuid _factionNPC;
             uint16 _damnedKills;
         };
 
@@ -760,7 +760,7 @@ class boss_sister_svalna : public CreatureScript
                 uint64 delay = 1;
                 for (uint32 i = 0; i < 4; ++i)
                 {
-                    if (Creature* crusader = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_CAPTAIN_ARNATH + i)))
+                    if (Creature* crusader = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_CAPTAIN_ARNATH + i)))
                     {
                         if (crusader->IsAlive() && crusader->GetEntry() == crusader->GetCreatureData()->id)
                         {
@@ -774,7 +774,7 @@ class boss_sister_svalna : public CreatureScript
             void EnterCombat(Unit* /*attacker*/) override
             {
                 _EnterCombat();
-                if (Creature* crok = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_CROK_SCOURGEBANE)))
+                if (Creature* crok = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_CROK_SCOURGEBANE)))
                     crok->AI()->Talk(SAY_CROK_COMBAT_SVALNA);
                 events.ScheduleEvent(EVENT_SVALNA_COMBAT, 9000);
                 events.ScheduleEvent(EVENT_IMPALING_SPEAR, urand(40000, 50000));
@@ -979,7 +979,7 @@ class npc_crok_scourgebane : public CreatureScript
                     _isEventDone = true;
                     // Load Grid with Sister Svalna
                     me->GetMap()->LoadGrid(4356.71f, 2484.33f);
-                    if (Creature* svalna = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_SISTER_SVALNA)))
+                    if (Creature* svalna = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_SISTER_SVALNA)))
                         svalna->AI()->DoAction(ACTION_START_GAUNTLET);
                     Talk(SAY_CROK_INTRO_1);
                     _events.ScheduleEvent(EVENT_ARNATH_INTRO_2, 7000);
@@ -987,7 +987,7 @@ class npc_crok_scourgebane : public CreatureScript
                     _events.ScheduleEvent(EVENT_START_PATHING, 37000);
                     me->setActive(true);
                     for (uint32 i = 0; i < 4; ++i)
-                        if (Creature* crusader = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_CAPTAIN_ARNATH + i)))
+                        if (Creature* crusader = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_CAPTAIN_ARNATH + i)))
                             crusader->AI()->DoAction(ACTION_START_GAUNTLET);
                 }
                 else if (action == ACTION_RESET_EVENT)
@@ -1000,7 +1000,7 @@ class npc_crok_scourgebane : public CreatureScript
                 }
             }
 
-            void SetGUID(uint64 guid, int32 type/* = 0*/) override
+            void SetGUID(ObjectGuid guid, int32 type/* = 0*/) override
             {
                 if (type == ACTION_VRYKUL_DEATH)
                 {
@@ -1013,7 +1013,7 @@ class npc_crok_scourgebane : public CreatureScript
                             _isEventActive = false;
                             me->setActive(false);
                             Talk(SAY_CROK_FINAL_WP);
-                            if (Creature* svalna = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_SISTER_SVALNA)))
+                            if (Creature* svalna = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_SISTER_SVALNA)))
                                 svalna->AI()->DoAction(ACTION_RESURRECT_CAPTAINS);
                         }
                     }
@@ -1041,7 +1041,7 @@ class npc_crok_scourgebane : public CreatureScript
                             _isEventActive = false;
                             me->setActive(false);
                             Talk(SAY_CROK_FINAL_WP);
-                            if (Creature* svalna = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_SISTER_SVALNA)))
+                            if (Creature* svalna = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_SISTER_SVALNA)))
                                 svalna->AI()->DoAction(ACTION_RESURRECT_CAPTAINS);
                         }
                         break;
@@ -1067,7 +1067,7 @@ class npc_crok_scourgebane : public CreatureScript
                             minY -= 50.0f;
                             maxY -= 50.0f;
                             // at waypoints 1 and 2 she kills one captain
-                            if (Creature* svalna = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_SISTER_SVALNA)))
+                            if (Creature* svalna = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_SISTER_SVALNA)))
                                 svalna->AI()->DoAction(ACTION_KILL_CAPTAIN);
                         }
                         else if (waypointId == 4)
@@ -1090,7 +1090,7 @@ class npc_crok_scourgebane : public CreatureScript
                     }
                     // at waypoints 1 and 2 she kills one captain
                     case 2:
-                        if (Creature* svalna = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_SISTER_SVALNA)))
+                        if (Creature* svalna = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_SISTER_SVALNA)))
                             svalna->AI()->DoAction(ACTION_KILL_CAPTAIN);
                         break;
                     default:
@@ -1160,7 +1160,7 @@ class npc_crok_scourgebane : public CreatureScript
                     switch (eventId)
                     {
                         case EVENT_ARNATH_INTRO_2:
-                            if (Creature* arnath = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_CAPTAIN_ARNATH)))
+                            if (Creature* arnath = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_CAPTAIN_ARNATH)))
                                 arnath->AI()->Talk(SAY_ARNATH_INTRO_2);
                             break;
                         case EVENT_CROK_INTRO_3:
@@ -1206,7 +1206,7 @@ class npc_crok_scourgebane : public CreatureScript
 
         private:
             EventMap _events;
-            std::set<uint64> _aliveTrash;
+            GuidSet _aliveTrash;
             InstanceScript* _instance;
             uint32 _currentWPid;
             uint32 _wipeCheckTimer;
@@ -1254,7 +1254,7 @@ struct npc_argent_captainAI : public ScriptedAI
         {
             if (action == ACTION_START_GAUNTLET)
             {
-                if (Creature* crok = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_CROK_SCOURGEBANE)))
+                if (Creature* crok = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_CROK_SCOURGEBANE)))
                 {
                     me->SetReactState(REACT_DEFENSIVE);
                     FollowAngle = me->GetAngle(crok) + me->GetOrientation();
@@ -1298,7 +1298,7 @@ struct npc_argent_captainAI : public ScriptedAI
             if (!me->GetVehicle())
             {
                 me->GetMotionMaster()->Clear(false);
-                if (Creature* crok = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_CROK_SCOURGEBANE)))
+                if (Creature* crok = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_CROK_SCOURGEBANE)))
                     me->GetMotionMaster()->MoveFollow(crok, FollowDist, FollowAngle, MOTION_SLOT_IDLE);
             }
 
@@ -2148,7 +2148,7 @@ class at_icc_start_frostwing_gauntlet : public AreaTriggerScript
         bool OnTrigger(Player* player, AreaTriggerEntry const* /*areaTrigger*/) override
         {
             if (InstanceScript* instance = player->GetInstanceScript())
-                if (Creature* crok = ObjectAccessor::GetCreature(*player, instance->GetData64(DATA_CROK_SCOURGEBANE)))
+                if (Creature* crok = ObjectAccessor::GetCreature(*player, instance->GetGuidData(DATA_CROK_SCOURGEBANE)))
                     crok->AI()->DoAction(ACTION_START_GAUNTLET);
             return true;
         }
diff --git a/src/server/scripts/Northrend/IcecrownCitadel/instance_icecrown_citadel.cpp b/src/server/scripts/Northrend/IcecrownCitadel/instance_icecrown_citadel.cpp
index 9c26f93fd54..4d86293665a 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/instance_icecrown_citadel.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/instance_icecrown_citadel.cpp
@@ -120,52 +120,6 @@ class instance_icecrown_citadel : public InstanceMapScript
                 LoadDoorData(doorData);
                 TeamInInstance = 0;
                 HeroicAttempts = MaxHeroicAttempts;
-                LadyDeathwisperElevatorGUID = 0;
-                GunshipGUID = 0;
-                EnemyGunshipGUID = 0;
-                GunshipArmoryGUID = 0;
-                DeathbringerSaurfangGUID = 0;
-                DeathbringerSaurfangDoorGUID = 0;
-                DeathbringerSaurfangEventGUID = 0;
-                DeathbringersCacheGUID = 0;
-                TeleporterLichKingGUID = 0;
-                TeleporterUpperSpireGUID = 0;
-                TeleporterLightsHammerGUID = 0;
-                TeleporterRampartsGUID = 0;
-                TeleporterDeathBringerGUID = 0;
-                TeleporterOratoryGUID = 0;
-                TeleporterSindragosaGUID = 0;
-                PlagueSigilGUID = 0;
-                BloodwingSigilGUID = 0;
-                FrostwingSigilGUID = 0;
-                memset(PutricidePipeGUIDs, 0, 2 * sizeof(uint64));
-                memset(PutricideGateGUIDs, 0, 2 * sizeof(uint64));
-                PutricideCollisionGUID = 0;
-                FestergutGUID = 0;
-                RotfaceGUID = 0;
-                ProfessorPutricideGUID = 0;
-                PutricideTableGUID = 0;
-                memset(BloodCouncilGUIDs, 0, 3 * sizeof(uint64));
-                BloodCouncilControllerGUID = 0;
-                BloodQueenLanaThelGUID = 0;
-                CrokScourgebaneGUID = 0;
-                memset(CrokCaptainGUIDs, 0, 4 * sizeof(uint64));
-                SisterSvalnaGUID = 0;
-                ValithriaDreamwalkerGUID = 0;
-                ValithriaLichKingGUID = 0;
-                ValithriaTriggerGUID = 0;
-                SindragosaGUID = 0;
-                SpinestalkerGUID = 0;
-                RimefangGUID = 0;
-                TheLichKingTeleportGUID = 0;
-                TheLichKingGUID = 0;
-                HighlordTirionFordringGUID = 0;
-                TerenasMenethilGUID = 0;
-                ArthasPlatformGUID = 0;
-                ArthasPrecipiceGUID = 0;
-                FrozenThroneEdgeGUID = 0;
-                FrozenThroneWindGUID = 0;
-                FrozenThroneWarningGUID = 0;
                 IsBonedEligible = true;
                 IsOozeDanceEligible = true;
                 IsNauseaEligible = true;
@@ -174,9 +128,6 @@ class instance_icecrown_citadel : public InstanceMapScript
                 UpperSpireTeleporterActiveState = NOT_STARTED;
                 BloodQuickeningState = NOT_STARTED;
                 BloodQuickeningMinutes = 0;
-                FrozenBolvarGUID = 0;
-                PillarsChainedGUID = 0;
-                PillarsUnchainedGUID = 0;
             }
 
             // A function to help reduce the number of lines for teleporter management.
@@ -362,7 +313,7 @@ class instance_icecrown_citadel : public InstanceMapScript
             void OnCreatureRemove(Creature* creature) override
             {
                 if (creature->GetEntry() == NPC_SINDRAGOSA)
-                    SindragosaGUID = 0;
+                    SindragosaGUID.Clear();
             }
 
             // Weekly quest spawn prevention
@@ -721,7 +672,7 @@ class instance_icecrown_citadel : public InstanceMapScript
                         break;
                     case GO_THE_SKYBREAKER_A:
                     case GO_ORGRIMS_HAMMER_H:
-                        GunshipGUID = 0;
+                        GunshipGUID.Clear();
                         break;
                     default:
                         break;
@@ -755,7 +706,7 @@ class instance_icecrown_citadel : public InstanceMapScript
                 return 0;
             }
 
-            uint64 GetData64(uint32 type) const override
+            ObjectGuid GetGuidData(uint32 type) const override
             {
                 switch (type)
                 {
@@ -820,7 +771,7 @@ class instance_icecrown_citadel : public InstanceMapScript
                         break;
                 }
 
-                return 0;
+                return ObjectGuid::Empty;
             }
 
             bool SetBossState(uint32 type, EncounterState state) override
@@ -1164,7 +1115,7 @@ class instance_icecrown_citadel : public InstanceMapScript
                 return false;
             }
 
-            bool CheckRequiredBosses(uint32 bossId, Player const* player = NULL) const override
+            bool CheckRequiredBosses(uint32 bossId, Player const* player = nullptr) const override
             {
                 if (player && player->GetSession()->HasPermission(rbac::RBAC_PERM_SKIP_CHECK_INSTANCE_REQUIRED_BOSSES))
                     return true;
@@ -1472,55 +1423,55 @@ class instance_icecrown_citadel : public InstanceMapScript
 
         protected:
             EventMap Events;
-            uint64 LadyDeathwisperElevatorGUID;
-            uint64 GunshipGUID;
-            uint64 EnemyGunshipGUID;
-            uint64 GunshipArmoryGUID;
-            uint64 DeathbringerSaurfangGUID;
-            uint64 DeathbringerSaurfangDoorGUID;
-            uint64 DeathbringerSaurfangEventGUID;   // Muradin Bronzebeard or High Overlord Saurfang
-            uint64 DeathbringersCacheGUID;
-            uint64 TeleporterLichKingGUID;
-            uint64 TeleporterUpperSpireGUID;
-            uint64 TeleporterLightsHammerGUID;
-            uint64 TeleporterRampartsGUID;
-            uint64 TeleporterDeathBringerGUID;
-            uint64 TeleporterOratoryGUID;
-            uint64 TeleporterSindragosaGUID;
-            uint64 PlagueSigilGUID;
-            uint64 BloodwingSigilGUID;
-            uint64 FrostwingSigilGUID;
-            uint64 PutricidePipeGUIDs[2];
-            uint64 PutricideGateGUIDs[2];
-            uint64 PutricideCollisionGUID;
-            uint64 FestergutGUID;
-            uint64 RotfaceGUID;
-            uint64 ProfessorPutricideGUID;
-            uint64 PutricideTableGUID;
-            uint64 BloodCouncilGUIDs[3];
-            uint64 BloodCouncilControllerGUID;
-            uint64 BloodQueenLanaThelGUID;
-            uint64 CrokScourgebaneGUID;
-            uint64 CrokCaptainGUIDs[4];
-            uint64 SisterSvalnaGUID;
-            uint64 ValithriaDreamwalkerGUID;
-            uint64 ValithriaLichKingGUID;
-            uint64 ValithriaTriggerGUID;
-            uint64 SindragosaGUID;
-            uint64 SpinestalkerGUID;
-            uint64 RimefangGUID;
-            uint64 TheLichKingTeleportGUID;
-            uint64 TheLichKingGUID;
-            uint64 HighlordTirionFordringGUID;
-            uint64 TerenasMenethilGUID;
-            uint64 ArthasPlatformGUID;
-            uint64 ArthasPrecipiceGUID;
-            uint64 FrozenThroneEdgeGUID;
-            uint64 FrozenThroneWindGUID;
-            uint64 FrozenThroneWarningGUID;
-            uint64 FrozenBolvarGUID;
-            uint64 PillarsChainedGUID;
-            uint64 PillarsUnchainedGUID;
+            ObjectGuid LadyDeathwisperElevatorGUID;
+            ObjectGuid GunshipGUID;
+            ObjectGuid EnemyGunshipGUID;
+            ObjectGuid GunshipArmoryGUID;
+            ObjectGuid DeathbringerSaurfangGUID;
+            ObjectGuid DeathbringerSaurfangDoorGUID;
+            ObjectGuid DeathbringerSaurfangEventGUID;   // Muradin Bronzebeard or High Overlord Saurfang
+            ObjectGuid DeathbringersCacheGUID;
+            ObjectGuid TeleporterLichKingGUID;
+            ObjectGuid TeleporterUpperSpireGUID;
+            ObjectGuid TeleporterLightsHammerGUID;
+            ObjectGuid TeleporterRampartsGUID;
+            ObjectGuid TeleporterDeathBringerGUID;
+            ObjectGuid TeleporterOratoryGUID;
+            ObjectGuid TeleporterSindragosaGUID;
+            ObjectGuid PlagueSigilGUID;
+            ObjectGuid BloodwingSigilGUID;
+            ObjectGuid FrostwingSigilGUID;
+            ObjectGuid PutricidePipeGUIDs[2];
+            ObjectGuid PutricideGateGUIDs[2];
+            ObjectGuid PutricideCollisionGUID;
+            ObjectGuid FestergutGUID;
+            ObjectGuid RotfaceGUID;
+            ObjectGuid ProfessorPutricideGUID;
+            ObjectGuid PutricideTableGUID;
+            ObjectGuid BloodCouncilGUIDs[3];
+            ObjectGuid BloodCouncilControllerGUID;
+            ObjectGuid BloodQueenLanaThelGUID;
+            ObjectGuid CrokScourgebaneGUID;
+            ObjectGuid CrokCaptainGUIDs[4];
+            ObjectGuid SisterSvalnaGUID;
+            ObjectGuid ValithriaDreamwalkerGUID;
+            ObjectGuid ValithriaLichKingGUID;
+            ObjectGuid ValithriaTriggerGUID;
+            ObjectGuid SindragosaGUID;
+            ObjectGuid SpinestalkerGUID;
+            ObjectGuid RimefangGUID;
+            ObjectGuid TheLichKingTeleportGUID;
+            ObjectGuid TheLichKingGUID;
+            ObjectGuid HighlordTirionFordringGUID;
+            ObjectGuid TerenasMenethilGUID;
+            ObjectGuid ArthasPlatformGUID;
+            ObjectGuid ArthasPrecipiceGUID;
+            ObjectGuid FrozenThroneEdgeGUID;
+            ObjectGuid FrozenThroneWindGUID;
+            ObjectGuid FrozenThroneWarningGUID;
+            ObjectGuid FrozenBolvarGUID;
+            ObjectGuid PillarsChainedGUID;
+            ObjectGuid PillarsUnchainedGUID;
             uint32 TeamInInstance;
             uint32 ColdflameJetsState;
             uint32 UpperSpireTeleporterActiveState;
diff --git a/src/server/scripts/Northrend/Naxxramas/boss_faerlina.cpp b/src/server/scripts/Northrend/Naxxramas/boss_faerlina.cpp
index ec273d5f6e8..dcb004cc3a0 100644
--- a/src/server/scripts/Northrend/Naxxramas/boss_faerlina.cpp
+++ b/src/server/scripts/Northrend/Naxxramas/boss_faerlina.cpp
@@ -201,7 +201,7 @@ class npc_faerlina_add : public CreatureScript
             void JustDied(Unit* /*killer*/) override
             {
                 if (_instance && GetDifficulty() == RAID_DIFFICULTY_10MAN_NORMAL)
-                    if (Creature* faerlina = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_FAERLINA)))
+                    if (Creature* faerlina = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_FAERLINA)))
                         DoCast(faerlina, SPELL_WIDOWS_EMBRACE);
             }
 
diff --git a/src/server/scripts/Northrend/Naxxramas/boss_four_horsemen.cpp b/src/server/scripts/Northrend/Naxxramas/boss_four_horsemen.cpp
index a8de1418cc4..c715bd8aad7 100644
--- a/src/server/scripts/Northrend/Naxxramas/boss_four_horsemen.cpp
+++ b/src/server/scripts/Northrend/Naxxramas/boss_four_horsemen.cpp
@@ -106,7 +106,7 @@ public:
 
         void Initialize()
         {
-            uiEventStarterGUID = 0;
+            uiEventStarterGUID.Clear();
             nextWP = 0;
             punishTimer = 2000;
             nextMovementStarted = false;
@@ -118,7 +118,7 @@ public:
         }
 
         Horsemen id;
-        uint64 uiEventStarterGUID;
+        ObjectGuid uiEventStarterGUID;
         uint8 nextWP;
         uint32 punishTimer;
         bool caster;
@@ -143,10 +143,10 @@ public:
 
         bool DoEncounteraction(Unit* who, bool attack, bool reset, bool checkAllDead)
         {
-            Creature* Thane = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_THANE));
-            Creature* Lady = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_LADY));
-            Creature* Baron = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_BARON));
-            Creature* Sir = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SIR));
+            Creature* Thane = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_THANE));
+            Creature* Lady = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_LADY));
+            Creature* Baron = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_BARON));
+            Creature* Sir = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SIR));
 
             if (Thane && Lady && Baron && Sir)
             {
diff --git a/src/server/scripts/Northrend/Naxxramas/boss_gothik.cpp b/src/server/scripts/Northrend/Naxxramas/boss_gothik.cpp
index de9d85db70b..39381f38d67 100644
--- a/src/server/scripts/Northrend/Naxxramas/boss_gothik.cpp
+++ b/src/server/scripts/Northrend/Naxxramas/boss_gothik.cpp
@@ -182,8 +182,8 @@ class boss_gothik : public CreatureScript
             bool phaseTwo;
             bool thirtyPercentReached;
 
-            std::vector<uint64> LiveTriggerGUID;
-            std::vector<uint64> DeadTriggerGUID;
+            GuidVector LiveTriggerGUID;
+            GuidVector DeadTriggerGUID;
 
             void Reset() override
             {
diff --git a/src/server/scripts/Northrend/Naxxramas/boss_heigan.cpp b/src/server/scripts/Northrend/Naxxramas/boss_heigan.cpp
index 2d0e8a6d2b2..aac59761626 100644
--- a/src/server/scripts/Northrend/Naxxramas/boss_heigan.cpp
+++ b/src/server/scripts/Northrend/Naxxramas/boss_heigan.cpp
@@ -135,7 +135,7 @@ public:
                 me->NearTeleportTo(x, y, z, o - (float(M_PI) / 2));
                 me->GetMotionMaster()->Clear();
                 me->GetMotionMaster()->MoveIdle();
-                me->SetTarget(0);
+                me->SetTarget(ObjectGuid::Empty);
                 DoCastAOE(SPELL_PLAGUE_CLOUD);
                 events.ScheduleEvent(EVENT_PHASE, 45000);
                 events.ScheduleEvent(EVENT_ERUPT, 8000);
@@ -204,7 +204,7 @@ class spell_heigan_eruption : public SpellScriptLoader
 
                 if (GetHitDamage() >= int32(GetHitPlayer()->GetHealth()))
                     if (InstanceScript* instance = caster->GetInstanceScript())
-                        if (Creature* Heigan = ObjectAccessor::GetCreature(*caster, instance->GetData64(DATA_HEIGAN)))
+                        if (Creature* Heigan = ObjectAccessor::GetCreature(*caster, instance->GetGuidData(DATA_HEIGAN)))
                             Heigan->AI()->SetData(DATA_SAFETY_DANCE, 0);
             }
 
diff --git a/src/server/scripts/Northrend/Naxxramas/boss_kelthuzad.cpp b/src/server/scripts/Northrend/Naxxramas/boss_kelthuzad.cpp
index 80bf7e39ad3..87466b6bf41 100644
--- a/src/server/scripts/Northrend/Naxxramas/boss_kelthuzad.cpp
+++ b/src/server/scripts/Northrend/Naxxramas/boss_kelthuzad.cpp
@@ -285,13 +285,13 @@ public:
         uint8  nAbomination;
         uint8  nWeaver;
 
-        std::map<uint64, float> chained;
+        std::map<ObjectGuid, float> chained;
 
         SummonList spawns; // adds spawn by the trigger. kept in separated list (i.e. not in summons)
 
         void ResetPlayerScale()
         {
-            std::map<uint64, float>::const_iterator itr;
+            std::map<ObjectGuid, float>::const_iterator itr;
             for (itr = chained.begin(); itr != chained.end(); ++itr)
             {
                 if (Player* charmed = ObjectAccessor::GetPlayer(*me, itr->first))
@@ -313,7 +313,7 @@ public:
 
             instance->SetData(DATA_ABOMINATION_KILLED, 0);
 
-            if (GameObject* trigger = ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_KELTHUZAD_TRIGGER)))
+            if (GameObject* trigger = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_KELTHUZAD_TRIGGER)))
             {
                 trigger->ResetDoorOrButton();
                 trigger->SetLootState(GO_READY);
@@ -321,7 +321,7 @@ public:
 
             for (uint8 i = 0; i <= 3; ++i)
             {
-                if (GameObject* portal = ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_KELTHUZAD_PORTAL01 + i)))
+                if (GameObject* portal = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_KELTHUZAD_PORTAL01 + i)))
                     if (!((portal->getLootState() == GO_READY) || (portal->getLootState() == GO_NOT_READY)))
                         portal->ResetDoorOrButton();
             }
@@ -349,7 +349,7 @@ public:
             _EnterCombat();
             for (uint8 i = 0; i <= 3; ++i)
             {
-                if (GameObject* portal = ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_KELTHUZAD_PORTAL01 + i)))
+                if (GameObject* portal = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_KELTHUZAD_PORTAL01 + i)))
                     portal->ResetDoorOrButton();
             }
             DoCast(me, SPELL_KELTHUZAD_CHANNEL, false);
@@ -399,7 +399,7 @@ public:
                             }
                             break;
                         case EVENT_TRIGGER:
-                            if (GameObject* trigger = ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_KELTHUZAD_TRIGGER)))
+                            if (GameObject* trigger = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_KELTHUZAD_TRIGGER)))
                                 trigger->SetLootState(GO_JUST_DEACTIVATED);
                             break;
                         case EVENT_PHASE:
@@ -439,7 +439,7 @@ public:
 
                         for (uint8 i = 0; i <= 3; ++i)
                         {
-                            if (GameObject* portal = ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_KELTHUZAD_PORTAL01 + i)))
+                            if (GameObject* portal = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_KELTHUZAD_PORTAL01 + i)))
                                 if (portal->getLootState() == GO_READY)
                                     portal->UseDoorOrButton();
                         }
@@ -495,7 +495,7 @@ public:
                         }
                         case EVENT_CHAINED_SPELL:
                         {
-                            std::map<uint64, float>::iterator itr;
+                            std::map<ObjectGuid, float>::iterator itr;
                             for (itr = chained.begin(); itr != chained.end();)
                             {
                                 if (Unit* player = ObjectAccessor::GetPlayer(*me, itr->first))
@@ -503,7 +503,7 @@ public:
                                     if (!player->IsCharmed())
                                     {
                                         player->SetObjectScale(itr->second);
-                                        std::map<uint64, float>::iterator next = itr;
+                                        std::map<ObjectGuid, float>::iterator next = itr;
                                         ++next;
                                         chained.erase(itr);
                                         itr = next;
@@ -639,7 +639,7 @@ public:
         if (!instance || instance->IsEncounterInProgress() || instance->GetBossState(BOSS_KELTHUZAD) == DONE)
             return false;
 
-        Creature* pKelthuzad = ObjectAccessor::GetCreature(*player, instance->GetData64(DATA_KELTHUZAD));
+        Creature* pKelthuzad = ObjectAccessor::GetCreature(*player, instance->GetGuidData(DATA_KELTHUZAD));
         if (!pKelthuzad)
             return false;
 
@@ -648,7 +648,7 @@ public:
             return false;
 
         pKelthuzadAI->AttackStart(player);
-        if (GameObject* trigger = ObjectAccessor::GetGameObject(*player, instance->GetData64(DATA_KELTHUZAD_TRIGGER)))
+        if (GameObject* trigger = ObjectAccessor::GetGameObject(*player, instance->GetGuidData(DATA_KELTHUZAD_TRIGGER)))
         {
             if (trigger->getLootState() == GO_READY)
                 trigger->UseDoorOrButton();
diff --git a/src/server/scripts/Northrend/Naxxramas/boss_maexxna.cpp b/src/server/scripts/Northrend/Naxxramas/boss_maexxna.cpp
index 209e689e615..aa284f1aaee 100644
--- a/src/server/scripts/Northrend/Naxxramas/boss_maexxna.cpp
+++ b/src/server/scripts/Northrend/Naxxramas/boss_maexxna.cpp
@@ -165,11 +165,11 @@ public:
 
     struct npc_webwrapAI : public NullCreatureAI
     {
-        npc_webwrapAI(Creature* creature) : NullCreatureAI(creature), victimGUID(0) { }
+        npc_webwrapAI(Creature* creature) : NullCreatureAI(creature) { }
 
-        uint64 victimGUID;
+        ObjectGuid victimGUID;
 
-        void SetGUID(uint64 guid, int32 /*param*/) override
+        void SetGUID(ObjectGuid guid, int32 /*param*/) override
         {
             victimGUID = guid;
             if (me->m_spells[0] && victimGUID)
diff --git a/src/server/scripts/Northrend/Naxxramas/boss_sapphiron.cpp b/src/server/scripts/Northrend/Naxxramas/boss_sapphiron.cpp
index ce5010c972f..97c7d7c4052 100644
--- a/src/server/scripts/Northrend/Naxxramas/boss_sapphiron.cpp
+++ b/src/server/scripts/Northrend/Naxxramas/boss_sapphiron.cpp
@@ -80,7 +80,7 @@ enum Misc
     MAX_FROST_RESISTANCE    = 100
 };
 
-typedef std::map<uint64, uint64> IceBlockMap;
+typedef std::map<ObjectGuid, ObjectGuid> IceBlockMap;
 
 class boss_sapphiron : public CreatureScript
 {
@@ -320,7 +320,7 @@ class boss_sapphiron : public CreatureScript
                                 {
                                     std::vector<Unit*>::const_iterator itr = targets.begin();
                                     advance(itr, rand32() % targets.size());
-                                    _iceblocks.insert(std::make_pair((*itr)->GetGUID(), 0));
+                                    _iceblocks.insert(std::make_pair((*itr)->GetGUID(), ObjectGuid::Empty));
                                     DoCast(*itr, SPELL_ICEBOLT);
                                     --_iceboltCount;
                                 }
diff --git a/src/server/scripts/Northrend/Naxxramas/boss_thaddius.cpp b/src/server/scripts/Northrend/Naxxramas/boss_thaddius.cpp
index 8ae3b5790db..650777a8815 100644
--- a/src/server/scripts/Northrend/Naxxramas/boss_thaddius.cpp
+++ b/src/server/scripts/Northrend/Naxxramas/boss_thaddius.cpp
@@ -120,11 +120,11 @@ public:
             // Moreover, the adds may not yet be spawn. So just track down the status if mob is spawn
             // and each mob will send its status at reset (meaning that it is alive)
             checkFeugenAlive = false;
-            if (Creature* pFeugen = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_FEUGEN)))
+            if (Creature* pFeugen = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_FEUGEN)))
                 checkFeugenAlive = pFeugen->IsAlive();
 
             checkStalaggAlive = false;
-            if (Creature* pStalagg = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_STALAGG)))
+            if (Creature* pStalagg = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_STALAGG)))
                 checkStalaggAlive = pStalagg->IsAlive();
 
             if (!checkFeugenAlive && !checkStalaggAlive)
@@ -230,12 +230,12 @@ public:
                 {
                     if (!checkStalaggAlive)
                     {
-                        if (Creature* pStalagg = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_STALAGG)))
+                        if (Creature* pStalagg = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_STALAGG)))
                             pStalagg->Respawn();
                     }
                     else
                     {
-                        if (Creature* pFeugen = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_FEUGEN)))
+                        if (Creature* pFeugen = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_FEUGEN)))
                             pFeugen->Respawn();
                     }
                 }
@@ -307,7 +307,7 @@ public:
 
         void Reset() override
         {
-            if (Creature* pThaddius = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_THADDIUS)))
+            if (Creature* pThaddius = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_THADDIUS)))
                 if (pThaddius->AI())
                     pThaddius->AI()->DoAction(ACTION_STALAGG_RESET);
             Initialize();
@@ -328,7 +328,7 @@ public:
         void JustDied(Unit* /*killer*/) override
         {
             Talk(SAY_STAL_DEATH);
-            if (Creature* pThaddius = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_THADDIUS)))
+            if (Creature* pThaddius = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_THADDIUS)))
                 if (pThaddius->AI())
                     pThaddius->AI()->DoAction(ACTION_STALAGG_DIED);
         }
@@ -340,7 +340,7 @@ public:
 
             if (magneticPullTimer <= uiDiff)
             {
-                if (Creature* pFeugen = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_FEUGEN)))
+                if (Creature* pFeugen = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_FEUGEN)))
                 {
                     Unit* pStalaggVictim = me->GetVictim();
                     Unit* pFeugenVictim = pFeugen->GetVictim();
@@ -403,7 +403,7 @@ public:
 
         void Reset() override
         {
-            if (Creature* pThaddius = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_THADDIUS)))
+            if (Creature* pThaddius = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_THADDIUS)))
                 if (pThaddius->AI())
                     pThaddius->AI()->DoAction(ACTION_FEUGEN_RESET);
             Initialize();
@@ -424,7 +424,7 @@ public:
         void JustDied(Unit* /*killer*/) override
         {
             Talk(SAY_FEUG_DEATH);
-            if (Creature* pThaddius = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_THADDIUS)))
+            if (Creature* pThaddius = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_THADDIUS)))
                 if (pThaddius->AI())
                     pThaddius->AI()->DoAction(ACTION_FEUGEN_DIED);
         }
diff --git a/src/server/scripts/Northrend/Naxxramas/instance_naxxramas.cpp b/src/server/scripts/Northrend/Naxxramas/instance_naxxramas.cpp
index 2fc49be0903..4151c4a85a7 100644
--- a/src/server/scripts/Northrend/Naxxramas/instance_naxxramas.cpp
+++ b/src/server/scripts/Northrend/Naxxramas/instance_naxxramas.cpp
@@ -112,27 +112,11 @@ class instance_naxxramas : public InstanceMapScript
                 LoadDoorData(doorData);
                 LoadMinionData(minionData);
 
-                GothikGateGUID          = 0;
-                HorsemenChestGUID       = 0;
-                FaerlinaGUID            = 0;
-                ThaneGUID               = 0;
-                LadyGUID                = 0;
-                BaronGUID               = 0;
-                SirGUID                 = 0;
-                ThaddiusGUID            = 0;
-                HeiganGUID              = 0;
-                FeugenGUID              = 0;
-                StalaggGUID             = 0;
-                SapphironGUID           = 0;
-                KelthuzadGUID           = 0;
-                KelthuzadTriggerGUID    = 0;
                 minHorsemenDiedTime     = 0;
                 maxHorsemenDiedTime     = 0;
                 AbominationCount        = 0;
 
                 playerDied              = 0;
-
-                memset(PortalsGUID, 0, sizeof(PortalsGUID));
             }
 
             void OnCreatureCreate(Creature* creature) override
@@ -309,7 +293,7 @@ class instance_naxxramas : public InstanceMapScript
                 return 0;
             }
 
-            uint64 GetData64(uint32 id) const override
+            ObjectGuid GetGuidData(uint32 id) const override
             {
                 switch (id)
                 {
@@ -345,7 +329,7 @@ class instance_naxxramas : public InstanceMapScript
                         return KelthuzadTriggerGUID;
                 }
 
-                return 0;
+                return ObjectGuid::Empty;
             }
 
             bool SetBossState(uint32 id, EncounterState state) override
@@ -372,7 +356,7 @@ class instance_naxxramas : public InstanceMapScript
                     if (i == section)
                         continue;
 
-                    for (uint64 guid : HeiganEruptionGUID[i])
+                    for (ObjectGuid guid : HeiganEruptionGUID[i])
                     {
                         if (GameObject* heiganEruption = instance->GetGameObject(guid))
                         {
@@ -434,38 +418,38 @@ class instance_naxxramas : public InstanceMapScript
         protected:
             /* The Arachnid Quarter */
             // Grand Widow Faerlina
-            uint64 FaerlinaGUID;
+            ObjectGuid FaerlinaGUID;
 
             /* The Plague Quarter */
             // Heigan the Unclean
-            std::set<uint64> HeiganEruptionGUID[4];
-            uint64 HeiganGUID;
+            GuidSet HeiganEruptionGUID[4];
+            ObjectGuid HeiganGUID;
 
             /* The Military Quarter */
             // Gothik the Harvester
-            uint64 GothikGateGUID;
+            ObjectGuid GothikGateGUID;
             // The Four Horsemen
-            uint64 ThaneGUID;
-            uint64 LadyGUID;
-            uint64 BaronGUID;
-            uint64 SirGUID;
-            uint64 HorsemenChestGUID;
+            ObjectGuid ThaneGUID;
+            ObjectGuid LadyGUID;
+            ObjectGuid BaronGUID;
+            ObjectGuid SirGUID;
+            ObjectGuid HorsemenChestGUID;
             time_t minHorsemenDiedTime;
             time_t maxHorsemenDiedTime;
 
             /* The Construct Quarter */
             // Thaddius
-            uint64 ThaddiusGUID;
-            uint64 FeugenGUID;
-            uint64 StalaggGUID;
+            ObjectGuid ThaddiusGUID;
+            ObjectGuid FeugenGUID;
+            ObjectGuid StalaggGUID;
 
             /* Frostwyrm Lair */
             // Sapphiron
-            uint64 SapphironGUID;
+            ObjectGuid SapphironGUID;
             // Kel'Thuzad
-            uint64 KelthuzadGUID;
-            uint64 KelthuzadTriggerGUID;
-            uint64 PortalsGUID[4];
+            ObjectGuid KelthuzadGUID;
+            ObjectGuid KelthuzadTriggerGUID;
+            ObjectGuid PortalsGUID[4];
             uint8 AbominationCount;
 
             /* The Immortal / The Undying */
diff --git a/src/server/scripts/Northrend/Nexus/EyeOfEternity/boss_malygos.cpp b/src/server/scripts/Northrend/Nexus/EyeOfEternity/boss_malygos.cpp
index 8b694bb6a3e..b1db173804b 100644
--- a/src/server/scripts/Northrend/Nexus/EyeOfEternity/boss_malygos.cpp
+++ b/src/server/scripts/Northrend/Nexus/EyeOfEternity/boss_malygos.cpp
@@ -330,7 +330,7 @@ enum MiscData
 class VehicleCheckPredicate
 {
     public:
-        bool operator()(uint64 guid) { return IS_VEHICLE_GUID(guid); }
+        bool operator()(ObjectGuid guid) { return guid.IsVehicle(); }
 };
 
 class boss_malygos : public CreatureScript
@@ -351,9 +351,10 @@ public:
         {
             _summonDeaths = 0;
             _preparingPulsesChecker = 0;
-            _arcaneOverloadGUID = 0;
-            _lastHitByArcaneBarrageGUID = 0;
-            memset(_surgeTargetGUID, 0, sizeof(_surgeTargetGUID));
+            _arcaneOverloadGUID.Clear();
+            _lastHitByArcaneBarrageGUID.Clear();
+            for (ObjectGuid& guid : _surgeTargetGUID)
+                guid.Clear();
 
             _killSpamFilter = false;
             _canAttack = false;
@@ -423,17 +424,17 @@ public:
             }
         }
 
-        uint64 GetGUID(int32 type) const override
+        ObjectGuid GetGUID(int32 type) const override
         {
             if (type >= DATA_FIRST_SURGE_TARGET_GUID && type < DATA_FIRST_SURGE_TARGET_GUID + NUM_MAX_SURGE_TARGETS)
                 return _surgeTargetGUID[type - DATA_FIRST_SURGE_TARGET_GUID];
             else if (type == DATA_LAST_TARGET_BARRAGE_GUID)
                 return _lastHitByArcaneBarrageGUID;
 
-            return 0;
+            return ObjectGuid::Empty;
         }
 
-        void SetGUID(uint64 guid, int32 type) override
+        void SetGUID(ObjectGuid guid, int32 type) override
         {
             switch (type)
             {
@@ -447,6 +448,7 @@ public:
                     break;
                 case DATA_LAST_TARGET_BARRAGE_GUID:
                     _lastHitByArcaneBarrageGUID = guid;
+                    break;
             }
         }
 
@@ -456,7 +458,7 @@ public:
             {
                 case ACTION_LAND_ENCOUNTER_START:
                     events.CancelEventGroup(1);
-                    if (Creature* alexstraszaBunny = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_ALEXSTRASZA_BUNNY_GUID)))
+                    if (Creature* alexstraszaBunny = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_ALEXSTRASZA_BUNNY_GUID)))
                     {
                         Position pos;
                         pos.m_positionZ = alexstraszaBunny->GetPositionZ();
@@ -670,7 +672,7 @@ public:
                 Talk(SAY_BUFF_SPARK);
             }
             else if (spell->Id == SPELL_MALYGOS_BERSERK)
-                TalkToMap(EMOTE_HIT_BERSERKER_TIMER);
+                Talk(EMOTE_HIT_BERSERKER_TIMER);
         }
 
         void MoveInLineOfSight(Unit* who) override
@@ -720,7 +722,7 @@ public:
                     {
                         _firstCyclicMovementStarted = true;
                         me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
-                        if (Creature* alexstraszaBunny = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_ALEXSTRASZA_BUNNY_GUID)))
+                        if (Creature* alexstraszaBunny = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_ALEXSTRASZA_BUNNY_GUID)))
                             me->SetFacingToObject(alexstraszaBunny);
                         events.ScheduleEvent(EVENT_SUMMON_ARCANE_BOMB, 1*IN_MILLISECONDS, 0, PHASE_TWO);
                     }
@@ -730,7 +732,7 @@ public:
                     break;
                 case POINT_PHASE_ONE_TO_TWO_TRANSITION:
                     me->SetDisableGravity(true);
-                    if (Creature* alexstraszaBunny = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_ALEXSTRASZA_BUNNY_GUID)))
+                    if (Creature* alexstraszaBunny = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_ALEXSTRASZA_BUNNY_GUID)))
                         me->SetFacingToObject(alexstraszaBunny);
                     me->GetMap()->SetZoneOverrideLight(AREA_EYE_OF_ETERNITY, LIGHT_ARCANE_RUNES, 5 * IN_MILLISECONDS);
                     events.ScheduleEvent(EVENT_FLY_OUT_OF_PLATFORM, 18 * IN_MILLISECONDS, 0, PHASE_TWO);
@@ -789,7 +791,7 @@ public:
                         me->CastCustomSpell(SPELL_RANDOM_PORTAL, SPELLVALUE_MAX_TARGETS, 1);
                         break;
                     case EVENT_LAND_START_ENCOUNTER:
-                        if (GameObject* iris = ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_FOCUSING_IRIS_GUID)))
+                        if (GameObject* iris = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_FOCUSING_IRIS_GUID)))
                         {
                             me->SetFacingToObject(iris);
                             iris->Delete(); // this is not the best way.
@@ -846,7 +848,7 @@ public:
                     case EVENT_FLY_OUT_OF_PLATFORM:
                         if (!_performingDestroyPlatform)
                         {
-                            if (Creature* alexstraszaBunny = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_ALEXSTRASZA_BUNNY_GUID)))
+                            if (Creature* alexstraszaBunny = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_ALEXSTRASZA_BUNNY_GUID)))
                             {
                                 Position randomPosOnRadius;
                                 // Hardcodded retail value, reason is Z getters can fail... (TO DO: Change to getter when height calculation works on 100%!)
@@ -1002,7 +1004,7 @@ public:
         {
             _JustDied();
             Talk(SAY_DEATH);
-            if (Creature* alexstraszaGiftBoxBunny = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_GIFT_BOX_BUNNY_GUID)))
+            if (Creature* alexstraszaGiftBoxBunny = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_GIFT_BOX_BUNNY_GUID)))
             {
                 if (GetDifficulty() == RAID_DIFFICULTY_10MAN_NORMAL)
                     alexstraszaGiftBoxBunny->SummonGameObject(GO_HEART_OF_MAGIC_10, HeartOfMagicSpawnPos.GetPositionX(), HeartOfMagicSpawnPos.GetPositionY(),
@@ -1036,9 +1038,9 @@ public:
         uint8 _phase; // Counter for phases used with a getter.
         uint8 _summonDeaths; // Keeps count of arcane trash.
         uint8 _preparingPulsesChecker; // In retail they use 2 preparing pulses with 7 sec CD, after they pass 2 seconds.
-        uint64 _arcaneOverloadGUID; // Last Arcane Overload summoned to know to which should visual be cast to (the purple ball, not bubble).
-        uint64 _lastHitByArcaneBarrageGUID; // Last hit player by Arcane Barrage, will be removed if targets > 1.
-        uint64 _surgeTargetGUID[3]; // All these three are used to keep current tagets to which warning should be sent.
+        ObjectGuid _arcaneOverloadGUID; // Last Arcane Overload summoned to know to which should visual be cast to (the purple ball, not bubble).
+        ObjectGuid _lastHitByArcaneBarrageGUID; // Last hit player by Arcane Barrage, will be removed if targets > 1.
+        ObjectGuid _surgeTargetGUID[3]; // All these three are used to keep current tagets to which warning should be sent.
 
         bool _killSpamFilter; // Prevent text spamming on killed player by helping implement a CD.
         bool _canAttack; // Used to control attacking (Move Chase not being applied after Stop Attack, only few times should act like this).
@@ -1075,7 +1077,7 @@ public:
         {
             if (spell->Id == SPELL_PORTAL_OPENED)
             {
-                if (Creature* malygos = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_MALYGOS)))
+                if (Creature* malygos = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_MALYGOS)))
                 {
                     if (malygos->AI()->GetData(DATA_PHASE) == PHASE_ONE)
                         DoCast(me, SPELL_SUMMON_POWER_PARK, true);
@@ -1089,7 +1091,7 @@ public:
             if (!me->HasAura(SPELL_PORTAL_VISUAL_CLOSED) && !me->HasAura(SPELL_PORTAL_OPENED))
                 DoCast(me, SPELL_PORTAL_VISUAL_CLOSED, true);
 
-            if (Creature* malygos = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_MALYGOS)))
+            if (Creature* malygos = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_MALYGOS)))
             {
                 if (malygos->AI()->GetData(DATA_PHASE) != PHASE_ONE && me->HasAura(SPELL_PORTAL_OPENED))
                 {
@@ -1119,7 +1121,7 @@ public:
         npc_power_sparkAI(Creature* creature) : ScriptedAI(creature)
         {
             _instance = creature->GetInstanceScript();
-            TalkToMap(EMOTE_POWER_SPARK_SUMMONED);
+            Talk(EMOTE_POWER_SPARK_SUMMONED);
             MoveToMalygos();
         }
 
@@ -1127,7 +1129,7 @@ public:
         {
             me->GetMotionMaster()->MoveIdle();
 
-            if (Creature* malygos = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_MALYGOS)))
+            if (Creature* malygos = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_MALYGOS)))
                 me->GetMotionMaster()->MoveFollow(malygos, 0.0f, 0.0f);
         }
 
@@ -1136,7 +1138,7 @@ public:
             if (!_instance)
                 return;
 
-            if (Creature* malygos = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_MALYGOS)))
+            if (Creature* malygos = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_MALYGOS)))
             {
                 if (malygos->AI()->GetData(DATA_PHASE) != PHASE_ONE || _instance->GetBossState(DATA_MALYGOS_EVENT) == FAIL)
                 {
@@ -1421,7 +1423,7 @@ class npc_nexus_lord : public CreatureScript
 
             void JustDied(Unit* /*killer*/) override
             {
-                if (Creature* malygos = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_MALYGOS)))
+                if (Creature* malygos = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_MALYGOS)))
                     malygos->AI()->SetData(DATA_SUMMON_DEATHS, malygos->AI()->GetData(DATA_SUMMON_DEATHS) + 1);
             }
 
@@ -1488,7 +1490,7 @@ class npc_scion_of_eternity : public CreatureScript
 
             void JustDied(Unit* /*killer*/) override
             {
-                if (Creature* malygos = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_MALYGOS)))
+                if (Creature* malygos = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_MALYGOS)))
                     malygos->AI()->SetData(DATA_SUMMON_DEATHS, malygos->AI()->GetData(DATA_SUMMON_DEATHS) + 1);
             }
 
@@ -1528,7 +1530,7 @@ public:
 
         void DoAction(int32 /*action*/) override
         {
-            if (Creature* malygos = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_MALYGOS)))
+            if (Creature* malygos = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_MALYGOS)))
             {
                 if (malygos->AI()->GetData(DATA_PHASE) == PHASE_TWO)
                     me->DespawnOrUnsummon(6*IN_MILLISECONDS);
@@ -1886,7 +1888,7 @@ class spell_malygos_vortex_visual : public SpellScriptLoader
                             if (InstanceScript* instance = caster->GetInstanceScript())
                             {
                                 // Teleport spell - I'm not sure but might be it must be cast by each vehicle when it's passenger leaves it.
-                                if (Creature* trigger = caster->GetMap()->GetCreature(instance->GetData64(DATA_TRIGGER)))
+                                if (Creature* trigger = caster->GetMap()->GetCreature(instance->GetGuidData(DATA_TRIGGER)))
                                     trigger->CastSpell(targetPlayer, SPELL_VORTEX_6, true);
                             }
                         }
@@ -2032,7 +2034,7 @@ class spell_scion_of_eternity_arcane_barrage : public SpellScriptLoader
 
                 Creature* caster = GetCaster()->ToCreature();
                 InstanceScript* instance = caster->GetInstanceScript();
-                Creature* malygos = ObjectAccessor::GetCreature(*caster, instance->GetData64(DATA_MALYGOS));
+                Creature* malygos = ObjectAccessor::GetCreature(*caster, instance->GetGuidData(DATA_MALYGOS));
 
                 // If max possible targets are more than 1 then Scions wouldn't select previosly selected target,
                 // in longer terms this means if spell picks target X then 2nd cast of this spell will pick smth else
@@ -2121,7 +2123,7 @@ class spell_malygos_destroy_platform_channel : public SpellScriptLoader
             {
                 if (Creature* target = GetTarget()->ToCreature())
                     if (InstanceScript* instance = target->GetInstanceScript())
-                        if (Creature* platformTrigger = target->GetMap()->GetCreature(instance->GetData64(DATA_ALEXSTRASZA_BUNNY_GUID)))
+                        if (Creature* platformTrigger = target->GetMap()->GetCreature(instance->GetGuidData(DATA_ALEXSTRASZA_BUNNY_GUID)))
                             platformTrigger->CastSpell(platformTrigger, SPELL_DESTROY_PLATFORM_BOOM_VISUAL);
             }
 
@@ -2195,7 +2197,7 @@ class spell_alexstrasza_bunny_destroy_platform_event : public SpellScriptLoader
             {
                 Creature* caster = GetCaster()->ToCreature();
                 if (InstanceScript* instance = caster->GetInstanceScript())
-                    if (GameObject* platform = caster->GetMap()->GetGameObject(instance->GetData64(DATA_PLATFORM)))
+                    if (GameObject* platform = caster->GetMap()->GetGameObject(instance->GetGuidData(DATA_PLATFORM)))
                         platform->SetFlag(GAMEOBJECT_FLAGS, GO_FLAG_DESTROYED);
             }
 
@@ -2478,7 +2480,7 @@ class spell_alexstrasza_gift_beam_visual : public SpellScriptLoader
                     if (InstanceScript* instance = GetCaster()->GetInstanceScript())
                     {
                         _alexstraszaGift->RemoveFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
-                        if (GameObject* heartMagic = target->GetMap()->GetGameObject(instance->GetData64(DATA_HEART_OF_MAGIC_GUID)))
+                        if (GameObject* heartMagic = target->GetMap()->GetGameObject(instance->GetGuidData(DATA_HEART_OF_MAGIC_GUID)))
                         {
                             heartMagic->RemoveFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
                             // TO DO: This is hack, core doesn't have support for these flags,
diff --git a/src/server/scripts/Northrend/Nexus/EyeOfEternity/instance_eye_of_eternity.cpp b/src/server/scripts/Northrend/Nexus/EyeOfEternity/instance_eye_of_eternity.cpp
index 45439ced242..d8612e1f5dd 100644
--- a/src/server/scripts/Northrend/Nexus/EyeOfEternity/instance_eye_of_eternity.cpp
+++ b/src/server/scripts/Northrend/Nexus/EyeOfEternity/instance_eye_of_eternity.cpp
@@ -37,19 +37,7 @@ public:
         {
             SetHeaders(DataHeader);
             SetBossNumber(MAX_ENCOUNTER);
-
-            vortexTriggers.clear();
-            portalTriggers.clear();
-
-            malygosGUID = 0;
-            irisGUID = 0;
-            lastPortalGUID = 0;
-            platformGUID = 0;
-            exitPortalGUID = 0;
-            alexstraszaBunnyGUID = 0;
-            heartOfMagicGUID = 0;
-            giftBoxBunnyGUID = 0;
-        };
+        }
 
         bool SetBossState(uint32 type, EncounterState state) override
         {
@@ -60,7 +48,7 @@ public:
             {
                 if (state == FAIL)
                 {
-                    for (std::list<uint64>::const_iterator itr_trigger = portalTriggers.begin(); itr_trigger != portalTriggers.end(); ++itr_trigger)
+                    for (GuidList::const_iterator itr_trigger = portalTriggers.begin(); itr_trigger != portalTriggers.end(); ++itr_trigger)
                     {
                         if (Creature* trigger = instance->GetCreature(*itr_trigger))
                         {
@@ -190,7 +178,7 @@ public:
             if (Creature* malygos = instance->GetCreature(malygosGUID))
             {
                 std::list<HostileReference*> m_threatlist = malygos->getThreatManager().getThreatList();
-                for (std::list<uint64>::const_iterator itr_vortex = vortexTriggers.begin(); itr_vortex != vortexTriggers.end(); ++itr_vortex)
+                for (GuidList::const_iterator itr_vortex = vortexTriggers.begin(); itr_vortex != vortexTriggers.end(); ++itr_vortex)
                 {
                     if (m_threatlist.empty())
                         return;
@@ -224,7 +212,7 @@ public:
         {
             bool next = (lastPortalGUID == portalTriggers.back() || !lastPortalGUID ? true : false);
 
-            for (std::list<uint64>::const_iterator itr_trigger = portalTriggers.begin(); itr_trigger != portalTriggers.end(); ++itr_trigger)
+            for (GuidList::const_iterator itr_trigger = portalTriggers.begin(); itr_trigger != portalTriggers.end(); ++itr_trigger)
             {
                 if (next)
                 {
@@ -257,7 +245,7 @@ public:
             }
         }
 
-        uint64 GetData64(uint32 data) const override
+        ObjectGuid GetGuidData(uint32 data) const override
         {
             switch (data)
             {
@@ -277,20 +265,20 @@ public:
                     return giftBoxBunnyGUID;
             }
 
-            return 0;
+            return ObjectGuid::Empty;
         }
 
     private:
-        std::list<uint64> vortexTriggers;
-        std::list<uint64> portalTriggers;
-        uint64 malygosGUID;
-        uint64 irisGUID;
-        uint64 lastPortalGUID;
-        uint64 platformGUID;
-        uint64 exitPortalGUID;
-        uint64 heartOfMagicGUID;
-        uint64 alexstraszaBunnyGUID;
-        uint64 giftBoxBunnyGUID;
+        GuidList vortexTriggers;
+        GuidList portalTriggers;
+        ObjectGuid malygosGUID;
+        ObjectGuid irisGUID;
+        ObjectGuid lastPortalGUID;
+        ObjectGuid platformGUID;
+        ObjectGuid exitPortalGUID;
+        ObjectGuid heartOfMagicGUID;
+        ObjectGuid alexstraszaBunnyGUID;
+        ObjectGuid giftBoxBunnyGUID;
         Position focusingIrisPosition;
         Position exitPortalPosition;
     };
diff --git a/src/server/scripts/Northrend/Nexus/Nexus/boss_anomalus.cpp b/src/server/scripts/Northrend/Nexus/Nexus/boss_anomalus.cpp
index 399f2eb8ac2..ed08296acd8 100644
--- a/src/server/scripts/Northrend/Nexus/Nexus/boss_anomalus.cpp
+++ b/src/server/scripts/Northrend/Nexus/Nexus/boss_anomalus.cpp
@@ -85,7 +85,7 @@ class boss_anomalus : public CreatureScript
             {
                 Phase = 0;
                 uiSparkTimer = 5000;
-                uiChaoticRiftGUID = 0;
+                uiChaoticRiftGUID.Clear();
                 chaosTheory = true;
             }
 
@@ -93,7 +93,7 @@ class boss_anomalus : public CreatureScript
 
             uint8 Phase;
             uint32 uiSparkTimer;
-            uint64 uiChaoticRiftGUID;
+            ObjectGuid uiChaoticRiftGUID;
             bool chaosTheory;
 
             void Reset() override
@@ -151,13 +151,13 @@ class boss_anomalus : public CreatureScript
                         if (Rift && Rift->isDead())
                         {
                             me->RemoveAurasDueToSpell(SPELL_RIFT_SHIELD);
-                            uiChaoticRiftGUID = 0;
+                            uiChaoticRiftGUID.Clear();
                         }
                         return;
                     }
                 }
                 else
-                    uiChaoticRiftGUID = 0;
+                    uiChaoticRiftGUID.Clear();
 
                 if ((Phase == 0) && HealthBelowPct(50))
                 {
@@ -232,7 +232,7 @@ class npc_chaotic_rift : public CreatureScript
 
                 if (uiChaoticEnergyBurstTimer <= diff)
                 {
-                    Creature* Anomalus = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_ANOMALUS));
+                    Creature* Anomalus = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_ANOMALUS));
                     if (Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 0))
                     {
                         if (Anomalus && Anomalus->HasAura(SPELL_RIFT_SHIELD))
@@ -250,7 +250,7 @@ class npc_chaotic_rift : public CreatureScript
                     if (Creature* Wraith = me->SummonCreature(NPC_CRAZED_MANA_WRAITH, me->GetPositionX() + 1, me->GetPositionY() + 1, me->GetPositionZ(), 0, TEMPSUMMON_TIMED_DESPAWN_OUT_OF_COMBAT, 1000))
                         if (Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 0))
                             Wraith->AI()->AttackStart(target);
-                    Creature* Anomalus = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_ANOMALUS));
+                    Creature* Anomalus = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_ANOMALUS));
                     if (Anomalus && Anomalus->HasAura(SPELL_RIFT_SHIELD))
                         uiSummonCrazedManaWraithTimer = 5000;
                     else
diff --git a/src/server/scripts/Northrend/Nexus/Nexus/boss_keristrasza.cpp b/src/server/scripts/Northrend/Nexus/Nexus/boss_keristrasza.cpp
index 7bc4174260b..6b3df5ef665 100644
--- a/src/server/scripts/Northrend/Nexus/Nexus/boss_keristrasza.cpp
+++ b/src/server/scripts/Northrend/Nexus/Nexus/boss_keristrasza.cpp
@@ -84,8 +84,8 @@ public:
 
         InstanceScript* instance;
 
-        std::list<uint64> intenseColdList;
-        uint64 auiContainmentSphereGUIDs[DATA_CONTAINMENT_SPHERES];
+        GuidList intenseColdList;
+        ObjectGuid auiContainmentSphereGUIDs[DATA_CONTAINMENT_SPHERES];
         uint32 uiCrystalfireBreathTimer;
         uint32 uiCrystalChainsCrystalizeTimer;
         uint32 uiTailSweepTimer;
@@ -127,9 +127,9 @@ public:
 
         bool CheckContainmentSpheres(bool remove_prison = false)
         {
-            auiContainmentSphereGUIDs[0] = instance->GetData64(ANOMALUS_CONTAINMET_SPHERE);
-            auiContainmentSphereGUIDs[1] = instance->GetData64(ORMOROKS_CONTAINMET_SPHERE);
-            auiContainmentSphereGUIDs[2] = instance->GetData64(TELESTRAS_CONTAINMET_SPHERE);
+            auiContainmentSphereGUIDs[0] = instance->GetGuidData(ANOMALUS_CONTAINMET_SPHERE);
+            auiContainmentSphereGUIDs[1] = instance->GetGuidData(ORMOROKS_CONTAINMET_SPHERE);
+            auiContainmentSphereGUIDs[2] = instance->GetGuidData(TELESTRAS_CONTAINMET_SPHERE);
 
             GameObject* ContainmentSpheres[DATA_CONTAINMENT_SPHERES];
 
@@ -163,7 +163,7 @@ public:
             }
         }
 
-        void SetGUID(uint64 guid, int32 id/* = 0 */) override
+        void SetGUID(ObjectGuid guid, int32 id/* = 0 */) override
         {
             if (id == DATA_INTENSE_COLD)
                 intenseColdList.push_back(guid);
@@ -219,7 +219,7 @@ public:
     {
         InstanceScript* instance = go->GetInstanceScript();
 
-        Creature* pKeristrasza = ObjectAccessor::GetCreature(*go, instance->GetData64(DATA_KERISTRASZA));
+        Creature* pKeristrasza = ObjectAccessor::GetCreature(*go, instance->GetGuidData(DATA_KERISTRASZA));
         if (pKeristrasza && pKeristrasza->IsAlive())
         {
             // maybe these are hacks :(
@@ -277,9 +277,9 @@ class achievement_intense_cold : public AchievementCriteriaScript
             if (!target)
                 return false;
 
-            std::list<uint64> intenseColdList = ENSURE_AI(boss_keristrasza::boss_keristraszaAI, target->ToCreature()->AI())->intenseColdList;
+            GuidList intenseColdList = ENSURE_AI(boss_keristrasza::boss_keristraszaAI, target->ToCreature()->AI())->intenseColdList;
             if (!intenseColdList.empty())
-                for (std::list<uint64>::iterator itr = intenseColdList.begin(); itr != intenseColdList.end(); ++itr)
+                for (GuidList::iterator itr = intenseColdList.begin(); itr != intenseColdList.end(); ++itr)
                     if (player->GetGUID() == *itr)
                         return false;
 
diff --git a/src/server/scripts/Northrend/Nexus/Nexus/boss_magus_telestra.cpp b/src/server/scripts/Northrend/Nexus/Nexus/boss_magus_telestra.cpp
index c08fd97a76f..8c58a65cdbe 100644
--- a/src/server/scripts/Northrend/Nexus/Nexus/boss_magus_telestra.cpp
+++ b/src/server/scripts/Northrend/Nexus/Nexus/boss_magus_telestra.cpp
@@ -89,9 +89,9 @@ public:
             uiGravityWellTimer = 15 * IN_MILLISECONDS;
             uiCooldown = 0;
 
-            uiFireMagusGUID = 0;
-            uiFrostMagusGUID = 0;
-            uiArcaneMagusGUID = 0;
+            uiFireMagusGUID.Clear();
+            uiFrostMagusGUID.Clear();
+            uiArcaneMagusGUID.Clear();
 
             for (uint8 n = 0; n < 3; ++n)
                 time[n] = 0;
@@ -102,9 +102,9 @@ public:
 
         InstanceScript* instance;
 
-        uint64 uiFireMagusGUID;
-        uint64 uiFrostMagusGUID;
-        uint64 uiArcaneMagusGUID;
+        ObjectGuid uiFireMagusGUID;
+        ObjectGuid uiFrostMagusGUID;
+        ObjectGuid uiArcaneMagusGUID;
 
         bool bFireMagusDead;
         bool bFrostMagusDead;
@@ -173,7 +173,7 @@ public:
             return 0;
         }
 
-        uint64 SplitPersonality(uint32 entry)
+        ObjectGuid SplitPersonality(uint32 entry)
         {
             if (Creature* Summoned = me->SummonCreature(entry, me->GetPositionX(), me->GetPositionY(), me->GetPositionZ(), me->GetOrientation(), TEMPSUMMON_TIMED_DESPAWN_OUT_OF_COMBAT, 1*IN_MILLISECONDS))
             {
@@ -199,7 +199,7 @@ public:
                     Summoned->AI()->AttackStart(target);
                 return Summoned->GetGUID();
             }
-            return 0;
+            return ObjectGuid::Empty;
         }
 
         void SummonedCreatureDespawn(Creature* summon) override
@@ -256,9 +256,9 @@ public:
                         Phase = 2;
                     if (Phase == 3)
                         Phase = 4;
-                    uiFireMagusGUID = 0;
-                    uiFrostMagusGUID = 0;
-                    uiArcaneMagusGUID = 0;
+                    uiFireMagusGUID.Clear();
+                    uiFrostMagusGUID.Clear();
+                    uiArcaneMagusGUID.Clear();
                     bIsWaitingToAppear = true;
                     uiIsWaitingToAppearTimer = 4*IN_MILLISECONDS;
                     Talk(SAY_MERGE);
diff --git a/src/server/scripts/Northrend/Nexus/Nexus/instance_nexus.cpp b/src/server/scripts/Northrend/Nexus/Nexus/instance_nexus.cpp
index 663f4bca6ac..91a40d43f12 100644
--- a/src/server/scripts/Northrend/Nexus/Nexus/instance_nexus.cpp
+++ b/src/server/scripts/Northrend/Nexus/Nexus/instance_nexus.cpp
@@ -44,12 +44,12 @@ public:
 
         uint32 m_auiEncounter[NUMBER_OF_ENCOUNTERS];
 
-        uint64 Anomalus;
-        uint64 Keristrasza;
+        ObjectGuid Anomalus;
+        ObjectGuid Keristrasza;
 
-        uint64 AnomalusContainmentSphere;
-        uint64 OrmoroksContainmentSphere;
-        uint64 TelestrasContainmentSphere;
+        ObjectGuid AnomalusContainmentSphere;
+        ObjectGuid OrmoroksContainmentSphere;
+        ObjectGuid TelestrasContainmentSphere;
 
         std::string strInstData;
 
@@ -57,12 +57,6 @@ public:
         {
             SetHeaders(DataHeader);
             memset(&m_auiEncounter, 0, sizeof(m_auiEncounter));
-
-            Anomalus = 0;
-            Keristrasza = 0;
-            AnomalusContainmentSphere = 0;
-            OrmoroksContainmentSphere = 0;
-            TelestrasContainmentSphere = 0;
         }
 
         void OnCreatureCreate(Creature* creature) override
@@ -222,7 +216,7 @@ public:
             }
         }
 
-        uint64 GetData64(uint32 uiIdentifier) const override
+        ObjectGuid GetGuidData(uint32 uiIdentifier) const override
         {
             switch (uiIdentifier)
             {
@@ -232,7 +226,7 @@ public:
                 case ORMOROKS_CONTAINMET_SPHERE:    return OrmoroksContainmentSphere;
                 case TELESTRAS_CONTAINMET_SPHERE:   return TelestrasContainmentSphere;
             }
-            return 0;
+            return ObjectGuid::Empty;
         }
 
         std::string GetSaveData() override
diff --git a/src/server/scripts/Northrend/Nexus/Oculus/boss_varos.cpp b/src/server/scripts/Northrend/Nexus/Oculus/boss_varos.cpp
index 17508517f44..0119b81796e 100644
--- a/src/server/scripts/Northrend/Nexus/Oculus/boss_varos.cpp
+++ b/src/server/scripts/Northrend/Nexus/Oculus/boss_varos.cpp
@@ -184,7 +184,7 @@ class npc_azure_ring_captain : public CreatureScript
 
             void Initialize()
             {
-                targetGUID = 0;
+                targetGUID.Clear();
             }
 
             void Reset() override
@@ -231,7 +231,7 @@ class npc_azure_ring_captain : public CreatureScript
                 switch (action)
                 {
                    case ACTION_CALL_DRAGON_EVENT:
-                        if (Creature* varos = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_VAROS)))
+                        if (Creature* varos = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_VAROS)))
                         {
                             if (Unit* victim = varos->AI()->SelectTarget(SELECT_TARGET_RANDOM, 0))
                             {
@@ -246,7 +246,7 @@ class npc_azure_ring_captain : public CreatureScript
            }
 
         private:
-            uint64 targetGUID;
+            ObjectGuid targetGUID;
             InstanceScript* instance;
         };
 
diff --git a/src/server/scripts/Northrend/Nexus/Oculus/instance_oculus.cpp b/src/server/scripts/Northrend/Nexus/Oculus/instance_oculus.cpp
index 83093234093..0665bfd240c 100644
--- a/src/server/scripts/Northrend/Nexus/Oculus/instance_oculus.cpp
+++ b/src/server/scripts/Northrend/Nexus/Oculus/instance_oculus.cpp
@@ -44,20 +44,7 @@ class instance_oculus : public InstanceMapScript
                 SetBossNumber(EncounterCount);
                 LoadDoorData(doorData);
 
-                DrakosGUID          = 0;
-                VarosGUID           = 0;
-                UromGUID            = 0;
-                EregosGUID          = 0;
-
                 CentrifugueConstructCounter = 0;
-
-                EregosCacheGUID     = 0;
-
-                GreaterWhelpList.clear();
-
-                BelgaristraszGUID   = 0;
-                EternosGUID         = 0;
-                VerdisaGUID         = 0;
             }
 
             void OnCreatureCreate(Creature* creature) override
@@ -240,7 +227,7 @@ class instance_oculus : public InstanceMapScript
                 return true;
             }
 
-            uint64 GetData64(uint32 type) const override
+            ObjectGuid GetGuidData(uint32 type) const override
             {
                 switch (type)
                 {
@@ -256,7 +243,7 @@ class instance_oculus : public InstanceMapScript
                         break;
                 }
 
-                return 0;
+                return ObjectGuid::Empty;
             }
 
             void FreeDragons()
@@ -282,26 +269,26 @@ class instance_oculus : public InstanceMapScript
 
             void GreaterWhelps()
             {
-                for (uint64 guid : GreaterWhelpList)
+                for (ObjectGuid guid : GreaterWhelpList)
                     if (Creature* gwhelp = instance->GetCreature(guid))
                         gwhelp->SetPhaseMask(1, true);
             }
 
         protected:
-            uint64 DrakosGUID;
-            uint64 VarosGUID;
-            uint64 UromGUID;
-            uint64 EregosGUID;
+            ObjectGuid DrakosGUID;
+            ObjectGuid VarosGUID;
+            ObjectGuid UromGUID;
+            ObjectGuid EregosGUID;
 
-            uint64 BelgaristraszGUID;
-            uint64 EternosGUID;
-            uint64 VerdisaGUID;
+            ObjectGuid BelgaristraszGUID;
+            ObjectGuid EternosGUID;
+            ObjectGuid VerdisaGUID;
 
             uint8 CentrifugueConstructCounter;
 
-            uint64 EregosCacheGUID;
+            ObjectGuid EregosCacheGUID;
 
-            std::list<uint64> GreaterWhelpList;
+            GuidList GreaterWhelpList;
         };
 
         InstanceScript* GetInstanceScript(InstanceMap* map) const override
diff --git a/src/server/scripts/Northrend/Ulduar/HallsOfLightning/boss_bjarngrim.cpp b/src/server/scripts/Northrend/Ulduar/HallsOfLightning/boss_bjarngrim.cpp
index 29de693bf3a..b5079d8cf4f 100644
--- a/src/server/scripts/Northrend/Ulduar/HallsOfLightning/boss_bjarngrim.cpp
+++ b/src/server/scripts/Northrend/Ulduar/HallsOfLightning/boss_bjarngrim.cpp
@@ -109,7 +109,6 @@ public:
             Initialize();
             instance = creature->GetInstanceScript();
             m_uiStance = STANCE_DEFENSIVE;
-            memset(&m_auiStormforgedLieutenantGUID, 0, sizeof(m_auiStormforgedLieutenantGUID));
             canBuff = true;
         }
 
@@ -158,7 +157,7 @@ public:
         uint32 m_uiMortalStrike_Timer;
         uint32 m_uiSlam_Timer;
 
-        uint64 m_auiStormforgedLieutenantGUID[2];
+        ObjectGuid m_auiStormforgedLieutenantGUID[2];
 
         void Reset() override
         {
@@ -170,6 +169,7 @@ public:
 
             for (uint8 i = 0; i < 2; ++i)
             {
+                // Something isn't right here - m_auiStormforgedLieutenantGUID is never assinged to
                 if (Creature* pStormforgedLieutenant = ObjectAccessor::GetCreature(*me, m_auiStormforgedLieutenantGUID[i]))
                     if (!pStormforgedLieutenant->IsAlive())
                         pStormforgedLieutenant->Respawn();
@@ -421,7 +421,7 @@ public:
 
         void EnterCombat(Unit* who) override
         {
-            if (Creature* pBjarngrim = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_BJARNGRIM)))
+            if (Creature* pBjarngrim = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_BJARNGRIM)))
             {
                 if (pBjarngrim->IsAlive() && !pBjarngrim->GetVictim())
                     pBjarngrim->AI()->AttackStart(who);
@@ -444,7 +444,7 @@ public:
 
             if (m_uiRenewSteel_Timer <= uiDiff)
             {
-                if (Creature* pBjarngrim = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_BJARNGRIM)))
+                if (Creature* pBjarngrim = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_BJARNGRIM)))
                 {
                     if (pBjarngrim->IsAlive())
                         DoCast(pBjarngrim, SPELL_RENEW_STEEL_N);
diff --git a/src/server/scripts/Northrend/Ulduar/HallsOfLightning/boss_ionar.cpp b/src/server/scripts/Northrend/Ulduar/HallsOfLightning/boss_ionar.cpp
index ddd88681a05..274fbed0fc9 100644
--- a/src/server/scripts/Northrend/Ulduar/HallsOfLightning/boss_ionar.cpp
+++ b/src/server/scripts/Northrend/Ulduar/HallsOfLightning/boss_ionar.cpp
@@ -168,7 +168,7 @@ public:
 
             Position pos = me->GetPosition();
 
-            for (uint64 guid : lSparkList)
+            for (ObjectGuid guid : lSparkList)
             {
                 if (Creature* pSpark = ObjectAccessor::GetCreature(*me, guid))
                 {
@@ -348,7 +348,7 @@ public:
             // Prevent them to follow players through the whole instance
             if (uiCheckTimer <= uiDiff)
             {
-                Creature* ionar = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_IONAR));
+                Creature* ionar = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_IONAR));
                 if (ionar && ionar->IsAlive())
                 {
                     if (me->GetDistance(ionar) > DATA_MAX_SPARK_DISTANCE)
diff --git a/src/server/scripts/Northrend/Ulduar/HallsOfLightning/boss_volkhan.cpp b/src/server/scripts/Northrend/Ulduar/HallsOfLightning/boss_volkhan.cpp
index 4ca94f69c5b..d63d5e87923 100644
--- a/src/server/scripts/Northrend/Ulduar/HallsOfLightning/boss_volkhan.cpp
+++ b/src/server/scripts/Northrend/Ulduar/HallsOfLightning/boss_volkhan.cpp
@@ -100,7 +100,7 @@ public:
 
         InstanceScript* instance;
 
-        std::list<uint64> m_lGolemGUIDList;
+        GuidList m_lGolemGUIDList;
 
         bool m_bHasTemper;
         bool m_bIsStriking;
@@ -164,7 +164,7 @@ public:
             if (m_lGolemGUIDList.empty())
                 return;
 
-            for (uint64 guid : m_lGolemGUIDList)
+            for (ObjectGuid guid : m_lGolemGUIDList)
             {
                 if (Creature* temp = ObjectAccessor::GetCreature(*me, guid))
                     if (temp->IsAlive())
@@ -179,7 +179,7 @@ public:
             if (m_lGolemGUIDList.empty())
                 return;
 
-            for (uint64 guid : m_lGolemGUIDList)
+            for (ObjectGuid guid : m_lGolemGUIDList)
             {
                 if (Creature* temp = ObjectAccessor::GetCreature(*me, guid))
                 {
diff --git a/src/server/scripts/Northrend/Ulduar/HallsOfLightning/instance_halls_of_lightning.cpp b/src/server/scripts/Northrend/Ulduar/HallsOfLightning/instance_halls_of_lightning.cpp
index 0f44f935d24..0d39a8921e8 100644
--- a/src/server/scripts/Northrend/Ulduar/HallsOfLightning/instance_halls_of_lightning.cpp
+++ b/src/server/scripts/Northrend/Ulduar/HallsOfLightning/instance_halls_of_lightning.cpp
@@ -39,13 +39,6 @@ class instance_halls_of_lightning : public InstanceMapScript
                 SetHeaders(DataHeader);
                 SetBossNumber(EncounterCount);
                 LoadDoorData(doorData);
-
-                GeneralBjarngrimGUID = 0;
-                VolkhanGUID          = 0;
-                IonarGUID            = 0;
-                LokenGUID            = 0;
-
-                LokenGlobeGUID       = 0;
             }
 
             void OnCreatureCreate(Creature* creature) override
@@ -119,7 +112,7 @@ class instance_halls_of_lightning : public InstanceMapScript
                 return true;
             }
 
-            uint64 GetData64(uint32 type) const override
+            ObjectGuid GetGuidData(uint32 type) const override
             {
                 switch (type)
                 {
@@ -134,16 +127,16 @@ class instance_halls_of_lightning : public InstanceMapScript
                     default:
                         break;
                 }
-                return 0;
+                return ObjectGuid::Empty;
             }
 
         protected:
-            uint64 GeneralBjarngrimGUID;
-            uint64 VolkhanGUID;
-            uint64 IonarGUID;
-            uint64 LokenGUID;
+            ObjectGuid GeneralBjarngrimGUID;
+            ObjectGuid VolkhanGUID;
+            ObjectGuid IonarGUID;
+            ObjectGuid LokenGUID;
 
-            uint64 LokenGlobeGUID;
+            ObjectGuid LokenGlobeGUID;
         };
 
         InstanceScript* GetInstanceScript(InstanceMap* map) const override
diff --git a/src/server/scripts/Northrend/Ulduar/HallsOfStone/boss_sjonnir.cpp b/src/server/scripts/Northrend/Ulduar/HallsOfStone/boss_sjonnir.cpp
index 63000df133e..ac3df1e49aa 100644
--- a/src/server/scripts/Northrend/Ulduar/HallsOfStone/boss_sjonnir.cpp
+++ b/src/server/scripts/Northrend/Ulduar/HallsOfStone/boss_sjonnir.cpp
@@ -281,7 +281,7 @@ class npc_iron_sludge : public CreatureScript
 
             void JustDied(Unit* /*killer*/) override
             {
-                if (Creature* sjonnir = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SJONNIR)))
+                if (Creature* sjonnir = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SJONNIR)))
                     sjonnir->AI()->DoAction(ACTION_OOZE_DEAD);
             }
         };
diff --git a/src/server/scripts/Northrend/Ulduar/HallsOfStone/halls_of_stone.cpp b/src/server/scripts/Northrend/Ulduar/HallsOfStone/halls_of_stone.cpp
index 11f616e8550..f98a6e40a07 100644
--- a/src/server/scripts/Northrend/Ulduar/HallsOfStone/halls_of_stone.cpp
+++ b/src/server/scripts/Northrend/Ulduar/HallsOfStone/halls_of_stone.cpp
@@ -164,16 +164,16 @@ public:
         bool bMarnakActivated;
         bool bAbedneumActivated;
 
-        std::list<uint64> KaddrakGUIDList;
+        GuidList KaddrakGUIDList;
 
         void Reset() override
         {
             Initialize();
 
-            instance->HandleGameObject(instance->GetData64(DATA_GO_KADDRAK), false);
-            instance->HandleGameObject(instance->GetData64(DATA_GO_MARNAK), false);
-            instance->HandleGameObject(instance->GetData64(DATA_GO_ABEDNEUM), false);
-            instance->HandleGameObject(instance->GetData64(DATA_GO_SKY_FLOOR), false);
+            instance->HandleGameObject(instance->GetGuidData(DATA_GO_KADDRAK), false);
+            instance->HandleGameObject(instance->GetGuidData(DATA_GO_MARNAK), false);
+            instance->HandleGameObject(instance->GetGuidData(DATA_GO_ABEDNEUM), false);
+            instance->HandleGameObject(instance->GetGuidData(DATA_GO_SKY_FLOOR), false);
 
             KaddrakGUIDList.clear();
         }
@@ -212,7 +212,7 @@ public:
                 {
                     if (Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 0, 100, true))
                         if (!KaddrakGUIDList.empty())
-                            for (std::list<uint64>::const_iterator itr = KaddrakGUIDList.begin(); itr != KaddrakGUIDList.end(); ++itr)
+                            for (GuidList::const_iterator itr = KaddrakGUIDList.begin(); itr != KaddrakGUIDList.end(); ++itr)
                             {
                                 if (Creature* pKaddrak = ObjectAccessor::GetCreature(*me, *itr))
                                 {
@@ -306,15 +306,15 @@ public:
             bIsBattle = false;
             uiStep = 0;
             uiPhaseTimer = 0;
-            uiControllerGUID = 0;
+            uiControllerGUID.Clear();
             brannSparklinNews = true;
         }
 
         uint32 uiStep;
         uint32 uiPhaseTimer;
 
-        uint64 uiControllerGUID;
-        std::list<uint64> lDwarfGUIDList;
+        ObjectGuid uiControllerGUID;
+        GuidList lDwarfGUIDList;
 
         InstanceScript* instance;
 
@@ -338,9 +338,9 @@ public:
         {
             if (lDwarfGUIDList.empty())
                 return;
-            for (std::list<uint64>::const_iterator itr = lDwarfGUIDList.begin(); itr != lDwarfGUIDList.end(); ++itr)
+            for (GuidList::const_iterator itr = lDwarfGUIDList.begin(); itr != lDwarfGUIDList.end(); ++itr)
             {
-                Creature* temp = ObjectAccessor::GetCreature(*me, instance ? (*itr) : 0);
+                Creature* temp = ObjectAccessor::GetCreature(*me, instance ? (*itr) : ObjectGuid::Empty);
                 if (temp && temp->IsAlive())
                     temp->DespawnOrUnsummon();
             }
@@ -367,7 +367,7 @@ public:
                     break;
                 case 17:
                     Talk(SAY_EVENT_INTRO_2);
-                    instance->HandleGameObject(instance->GetData64(DATA_GO_TRIBUNAL_CONSOLE), true);
+                    instance->HandleGameObject(instance->GetGuidData(DATA_GO_TRIBUNAL_CONSOLE), true);
                     me->SetStandState(UNIT_STAND_STATE_KNEEL);
                     SetEscortPaused(true);
                     JumpToNextStep(8500);
@@ -455,7 +455,7 @@ public:
                         JumpToNextStep(0);
                         break;
                     case 5:
-                        if (Creature* temp = (ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_ABEDNEUM))))
+                        if (Creature* temp = (ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_ABEDNEUM))))
                             temp->AI()->Talk(SAY_EVENT_INTRO_3_ABED);
                         JumpToNextStep(8500);
                         break;
@@ -464,13 +464,13 @@ public:
                         JumpToNextStep(6500);
                         break;
                     case 7:
-                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_KADDRAK)))
+                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_KADDRAK)))
                             temp->AI()->Talk(SAY_EVENT_A_2_KADD);
                         JumpToNextStep(12500);
                         break;
                     case 8:
                         Talk(SAY_EVENT_A_3);
-                        instance->HandleGameObject(instance->GetData64(DATA_GO_KADDRAK), true);
+                        instance->HandleGameObject(instance->GetGuidData(DATA_GO_KADDRAK), true);
                         if (Creature* temp = ObjectAccessor::GetCreature(*me, uiControllerGUID))
                             ENSURE_AI(npc_tribuna_controller::npc_tribuna_controllerAI, temp->AI())->bKaddrakActivated = true;
                         JumpToNextStep(5000);
@@ -485,14 +485,14 @@ public:
                         JumpToNextStep(6000);
                         break;
                     case 11:
-                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_MARNAK)))
+                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_MARNAK)))
                             temp->AI()->Talk(SAY_EVENT_B_2_MARN);
                         SpawnDwarf(1);
                         JumpToNextStep(20000);
                         break;
                     case 12:
                         Talk(SAY_EVENT_B_3);
-                        instance->HandleGameObject(instance->GetData64(DATA_GO_MARNAK), true);
+                        instance->HandleGameObject(instance->GetGuidData(DATA_GO_MARNAK), true);
                         if (Creature* temp = ObjectAccessor::GetCreature(*me, uiControllerGUID))
                             ENSURE_AI(npc_tribuna_controller::npc_tribuna_controllerAI, temp->AI())->bMarnakActivated = true;
                         JumpToNextStep(10000);
@@ -515,14 +515,14 @@ public:
                         JumpToNextStep(20000);
                         break;
                     case 17:
-                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_ABEDNEUM)))
+                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_ABEDNEUM)))
                             temp->AI()->Talk(SAY_EVENT_C_2_ABED);
                         SpawnDwarf(1);
                         JumpToNextStep(20000);
                         break;
                     case 18:
                         Talk(SAY_EVENT_C_3);
-                        instance->HandleGameObject(instance->GetData64(DATA_GO_ABEDNEUM), true);
+                        instance->HandleGameObject(instance->GetGuidData(DATA_GO_ABEDNEUM), true);
                         if (Creature* temp = ObjectAccessor::GetCreature(*me, uiControllerGUID))
                             ENSURE_AI(npc_tribuna_controller::npc_tribuna_controllerAI, temp->AI())->bAbedneumActivated = true;
                         JumpToNextStep(5000);
@@ -541,7 +541,7 @@ public:
                         JumpToNextStep(20000);
                         break;
                     case 22:
-                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_ABEDNEUM)))
+                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_ABEDNEUM)))
                             temp->AI()->Talk(SAY_EVENT_D_2_ABED);
                         SpawnDwarf(1);
                         JumpToNextStep(5000);
@@ -564,7 +564,7 @@ public:
                         JumpToNextStep(10000);
                         break;
                     case 27:
-                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_ABEDNEUM)))
+                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_ABEDNEUM)))
                             temp->AI()->Talk(SAY_EVENT_D_4_ABED);
                         SpawnDwarf(1);
                         JumpToNextStep(10000);
@@ -573,7 +573,7 @@ public:
                         me->SetReactState(REACT_DEFENSIVE);
                         Talk(SAY_EVENT_END_01);
                         me->SetStandState(UNIT_STAND_STATE_STAND);
-                        instance->HandleGameObject(instance->GetData64(DATA_GO_SKY_FLOOR), true);
+                        instance->HandleGameObject(instance->GetGuidData(DATA_GO_SKY_FLOOR), true);
                         if (Creature* temp = ObjectAccessor::GetCreature(*me, uiControllerGUID))
                             temp->DealDamage(temp, temp->GetHealth(), NULL, DIRECT_DAMAGE, SPELL_SCHOOL_MASK_NORMAL, NULL, false);
                         bIsBattle = true;
@@ -587,7 +587,7 @@ public:
                         JumpToNextStep(5500);
                         break;
                     case 30:
-                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_ABEDNEUM)))
+                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_ABEDNEUM)))
                             temp->AI()->Talk(SAY_EVENT_END_03_ABED);
                         JumpToNextStep(8500);
                         break;
@@ -596,7 +596,7 @@ public:
                         JumpToNextStep(11500);
                         break;
                     case 32:
-                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_ABEDNEUM)))
+                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_ABEDNEUM)))
                             temp->AI()->Talk(SAY_EVENT_END_05_ABED);
                         JumpToNextStep(11500);
                         break;
@@ -605,7 +605,7 @@ public:
                         JumpToNextStep(4500);
                         break;
                     case 34:
-                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_ABEDNEUM)))
+                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_ABEDNEUM)))
                             temp->AI()->Talk(SAY_EVENT_END_07_ABED);
                         JumpToNextStep(22500);
                         break;
@@ -614,7 +614,7 @@ public:
                         JumpToNextStep(7500);
                         break;
                     case 36:
-                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_KADDRAK)))
+                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_KADDRAK)))
                             temp->AI()->Talk(SAY_EVENT_END_09_KADD);
                         JumpToNextStep(18500);
                         break;
@@ -623,7 +623,7 @@ public:
                         JumpToNextStep(5500);
                         break;
                     case 38:
-                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_KADDRAK)))
+                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_KADDRAK)))
                             temp->AI()->Talk(SAY_EVENT_END_11_KADD);
                         JumpToNextStep(20500);
                         break;
@@ -632,7 +632,7 @@ public:
                         JumpToNextStep(2500);
                         break;
                     case 40:
-                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_KADDRAK)))
+                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_KADDRAK)))
                             temp->AI()->Talk(SAY_EVENT_END_13_KADD);
                         JumpToNextStep(19500);
                         break;
@@ -641,7 +641,7 @@ public:
                         JumpToNextStep(10500);
                         break;
                     case 42:
-                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_MARNAK)))
+                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_MARNAK)))
                             temp->AI()->Talk(SAY_EVENT_END_15_MARN);
                         JumpToNextStep(6500);
                         break;
@@ -650,7 +650,7 @@ public:
                         JumpToNextStep(6500);
                         break;
                     case 44:
-                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_MARNAK)))
+                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_MARNAK)))
                             temp->AI()->Talk(SAY_EVENT_END_17_MARN);
                         JumpToNextStep(25500);
                         break;
@@ -659,7 +659,7 @@ public:
                         JumpToNextStep(23500);
                         break;
                     case 46:
-                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_MARNAK)))
+                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_MARNAK)))
                             temp->AI()->Talk(SAY_EVENT_END_19_MARN);
                         JumpToNextStep(3500);
                         break;
@@ -668,16 +668,16 @@ public:
                         JumpToNextStep(8500);
                         break;
                     case 48:
-                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_ABEDNEUM)))
+                        if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_ABEDNEUM)))
                             temp->AI()->Talk(SAY_EVENT_END_21_ABED);
                         JumpToNextStep(5500);
                         break;
                     case 49:
                     {
-                        instance->HandleGameObject(instance->GetData64(DATA_GO_KADDRAK), false);
-                        instance->HandleGameObject(instance->GetData64(DATA_GO_MARNAK), false);
-                        instance->HandleGameObject(instance->GetData64(DATA_GO_ABEDNEUM), false);
-                        instance->HandleGameObject(instance->GetData64(DATA_GO_SKY_FLOOR), false);
+                        instance->HandleGameObject(instance->GetGuidData(DATA_GO_KADDRAK), false);
+                        instance->HandleGameObject(instance->GetGuidData(DATA_GO_MARNAK), false);
+                        instance->HandleGameObject(instance->GetGuidData(DATA_GO_ABEDNEUM), false);
+                        instance->HandleGameObject(instance->GetGuidData(DATA_GO_SKY_FLOOR), false);
                         Player* player = GetPlayerForEscort();
                         if (player)
                             player->GroupEventHappens(QUEST_HALLS_OF_STONE, me);
diff --git a/src/server/scripts/Northrend/Ulduar/HallsOfStone/instance_halls_of_stone.cpp b/src/server/scripts/Northrend/Ulduar/HallsOfStone/instance_halls_of_stone.cpp
index b7aa606aeeb..d6c7b18eabd 100644
--- a/src/server/scripts/Northrend/Ulduar/HallsOfStone/instance_halls_of_stone.cpp
+++ b/src/server/scripts/Northrend/Ulduar/HallsOfStone/instance_halls_of_stone.cpp
@@ -39,22 +39,6 @@ class instance_halls_of_stone : public InstanceMapScript
                 SetHeaders(DataHeader);
                 SetBossNumber(EncounterCount);
                 LoadDoorData(doorData);
-
-                KrystallusGUID          = 0;
-                MaidenOfGriefGUID       = 0;
-                SjonnirGUID             = 0;
-
-                KaddrakGUID             = 0;
-                AbedneumGUID            = 0;
-                MarnakGUID              = 0;
-                BrannGUID               = 0;
-
-                TribunalConsoleGUID     = 0;
-                TribunalChestGUID       = 0;
-                TribunalSkyFloorGUID    = 0;
-                KaddrakGoGUID           = 0;
-                AbedneumGoGUID          = 0;
-                MarnakGoGUID            = 0;
             }
 
             void OnCreatureCreate(Creature* creature) override
@@ -132,7 +116,7 @@ class instance_halls_of_stone : public InstanceMapScript
                 }
             }
 
-            uint64 GetData64(uint32 type) const override
+            ObjectGuid GetGuidData(uint32 type) const override
             {
                 switch (type)
                 {
@@ -162,7 +146,7 @@ class instance_halls_of_stone : public InstanceMapScript
                         break;
                 }
 
-                return 0;
+                return ObjectGuid::Empty;
             }
 
             bool SetBossState(uint32 type, EncounterState state) override
@@ -186,7 +170,7 @@ class instance_halls_of_stone : public InstanceMapScript
                 return true;
             }
 
-            bool CheckRequiredBosses(uint32 bossId, Player const* player /*= NULL*/) const override
+            bool CheckRequiredBosses(uint32 bossId, Player const* player = nullptr) const override
             {
                 if (player && player->GetSession()->HasPermission(rbac::RBAC_PERM_SKIP_CHECK_INSTANCE_REQUIRED_BOSSES))
                     return true;
@@ -205,21 +189,21 @@ class instance_halls_of_stone : public InstanceMapScript
             }
 
         protected:
-            uint64 KrystallusGUID;
-            uint64 MaidenOfGriefGUID;
-            uint64 SjonnirGUID;
-
-            uint64 KaddrakGUID;
-            uint64 AbedneumGUID;
-            uint64 MarnakGUID;
-            uint64 BrannGUID;
-
-            uint64 TribunalConsoleGUID;
-            uint64 TribunalChestGUID;
-            uint64 TribunalSkyFloorGUID;
-            uint64 KaddrakGoGUID;
-            uint64 AbedneumGoGUID;
-            uint64 MarnakGoGUID;
+            ObjectGuid KrystallusGUID;
+            ObjectGuid MaidenOfGriefGUID;
+            ObjectGuid SjonnirGUID;
+
+            ObjectGuid KaddrakGUID;
+            ObjectGuid AbedneumGUID;
+            ObjectGuid MarnakGUID;
+            ObjectGuid BrannGUID;
+
+            ObjectGuid TribunalConsoleGUID;
+            ObjectGuid TribunalChestGUID;
+            ObjectGuid TribunalSkyFloorGUID;
+            ObjectGuid KaddrakGoGUID;
+            ObjectGuid AbedneumGoGUID;
+            ObjectGuid MarnakGoGUID;
         };
 
         InstanceScript* GetInstanceScript(InstanceMap* map) const override
diff --git a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_algalon_the_observer.cpp b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_algalon_the_observer.cpp
index 3c073578d49..bd5b61e227f 100644
--- a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_algalon_the_observer.cpp
+++ b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_algalon_the_observer.cpp
@@ -403,7 +403,7 @@ class boss_algalon_the_observer : public CreatureScript
                 {
                     _firstPull = false;
                     Talk(SAY_ALGALON_START_TIMER);
-                    if (Creature* brann = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_BRANN_BRONZEBEARD_ALG)))
+                    if (Creature* brann = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_BRANN_BRONZEBEARD_ALG)))
                         brann->AI()->DoAction(ACTION_FINISH_INTRO);
 
                     me->setActive(true);
@@ -1008,10 +1008,10 @@ class go_celestial_planetarium_access : public GameObjectScript
                 if (InstanceScript* instance = go->GetInstanceScript())
                 {
                     instance->SetData(DATA_ALGALON_SUMMON_STATE, 1);
-                    if (GameObject* sigil = ObjectAccessor::GetGameObject(*go, instance->GetData64(DATA_SIGILDOOR_01)))
+                    if (GameObject* sigil = ObjectAccessor::GetGameObject(*go, instance->GetGuidData(DATA_SIGILDOOR_01)))
                         sigil->SetGoState(GO_STATE_ACTIVE);
 
-                    if (GameObject* sigil = ObjectAccessor::GetGameObject(*go, instance->GetData64(DATA_SIGILDOOR_02)))
+                    if (GameObject* sigil = ObjectAccessor::GetGameObject(*go, instance->GetGuidData(DATA_SIGILDOOR_02)))
                         sigil->SetGoState(GO_STATE_ACTIVE);
                 }
 
diff --git a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_assembly_of_iron.cpp b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_assembly_of_iron.cpp
index 80b3882593c..bb7a8592e04 100644
--- a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_assembly_of_iron.cpp
+++ b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_assembly_of_iron.cpp
@@ -210,11 +210,11 @@ class boss_steelbreaker : public CreatureScript
                     Talk(SAY_STEELBREAKER_DEATH);
                     //DoCastAOE(SPELL_SUPERCHARGE, true);
 
-                    if (Creature* Brundir = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_BRUNDIR)))
+                    if (Creature* Brundir = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_BRUNDIR)))
                         if (Brundir->IsAlive())
                             Brundir->AI()->DoAction(ACTION_SUPERCHARGE);
 
-                    if (Creature* Molgeim = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_MOLGEIM)))
+                    if (Creature* Molgeim = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_MOLGEIM)))
                         if (Molgeim->IsAlive())
                             Molgeim->AI()->DoAction(ACTION_SUPERCHARGE);
                 }
@@ -355,11 +355,11 @@ class boss_runemaster_molgeim : public CreatureScript
                     Talk(SAY_MOLGEIM_DEATH);
                     //DoCastAOE(SPELL_SUPERCHARGE, true);
 
-                    if (Creature* Brundir = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_BRUNDIR)))
+                    if (Creature* Brundir = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_BRUNDIR)))
                         if (Brundir->IsAlive())
                             Brundir->AI()->DoAction(ACTION_SUPERCHARGE);
 
-                    if (Creature* Steelbreaker = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_STEELBREAKER)))
+                    if (Creature* Steelbreaker = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_STEELBREAKER)))
                         if (Steelbreaker->IsAlive())
                             Steelbreaker->AI()->DoAction(ACTION_SUPERCHARGE);
                 }
@@ -396,12 +396,12 @@ class boss_runemaster_molgeim : public CreatureScript
                             switch (urand(0, 2))
                             {
                                 case 1:
-                                    if (Creature* Steelbreaker = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_STEELBREAKER)))
+                                    if (Creature* Steelbreaker = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_STEELBREAKER)))
                                         if (Steelbreaker->IsAlive())
                                             target = Steelbreaker;
                                     break;
                                 case 2:
-                                    if (Creature* Brundir = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_STEELBREAKER)))
+                                    if (Creature* Brundir = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_STEELBREAKER)))
                                         if (Brundir->IsAlive())
                                             target = Brundir;
                                     break;
@@ -528,11 +528,11 @@ class boss_stormcaller_brundir : public CreatureScript
                     Talk(SAY_BRUNDIR_DEATH);
                     //DoCastAOE(SPELL_SUPERCHARGE, true);
 
-                    if (Creature* Molgeim = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_MOLGEIM)))
+                    if (Creature* Molgeim = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_MOLGEIM)))
                         if (Molgeim->IsAlive())
                             Molgeim->AI()->DoAction(ACTION_SUPERCHARGE);
 
-                    if (Creature* Steelbreaker = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_STEELBREAKER)))
+                    if (Creature* Steelbreaker = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_STEELBREAKER)))
                         if (Steelbreaker->IsAlive())
                             Steelbreaker->AI()->DoAction(ACTION_SUPERCHARGE);
                 }
@@ -689,7 +689,7 @@ class spell_assembly_meltdown : public SpellScriptLoader
             void HandleInstaKill(SpellEffIndex /*effIndex*/)
             {
                 if (InstanceScript* instance = GetCaster()->GetInstanceScript())
-                    if (Creature* Steelbreaker = ObjectAccessor::GetCreature(*GetCaster(), instance->GetData64(DATA_STEELBREAKER)))
+                    if (Creature* Steelbreaker = ObjectAccessor::GetCreature(*GetCaster(), instance->GetGuidData(DATA_STEELBREAKER)))
                         Steelbreaker->AI()->DoAction(ACTION_ADD_CHARGE);
             }
 
@@ -724,7 +724,7 @@ class spell_assembly_rune_of_summoning : public SpellScriptLoader
             void HandlePeriodic(AuraEffect const* aurEff)
             {
                 PreventDefaultAction();
-                GetTarget()->CastSpell(GetTarget(), SPELL_RUNE_OF_SUMMONING_SUMMON, true, NULL, aurEff, GetTarget()->IsSummon() ? GetTarget()->ToTempSummon()->GetSummonerGUID() : 0);
+                GetTarget()->CastSpell(GetTarget(), SPELL_RUNE_OF_SUMMONING_SUMMON, true, NULL, aurEff, GetTarget()->IsSummon() ? GetTarget()->ToTempSummon()->GetSummonerGUID() : ObjectGuid::Empty);
             }
 
             void OnRemove(AuraEffect const* /*aurEff*/, AuraEffectHandleModes /*mode*/)
diff --git a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_auriaya.cpp b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_auriaya.cpp
index 8dd72e5d1a6..a00c715fef4 100644
--- a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_auriaya.cpp
+++ b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_auriaya.cpp
@@ -112,7 +112,7 @@ class boss_auriaya : public CreatureScript
 
             void Initialize()
             {
-                DefenderGUID = 0;
+                DefenderGUID.Clear();
                 defenderLives = 8;
                 crazyCatLady = true;
                 nineLives = false;
@@ -279,7 +279,7 @@ class boss_auriaya : public CreatureScript
             }
 
         private:
-            uint64 DefenderGUID;
+            ObjectGuid DefenderGUID;
             uint8 defenderLives;
             bool crazyCatLady;
             bool nineLives;
@@ -385,7 +385,7 @@ class npc_sanctum_sentry : public CreatureScript
 
             void JustDied(Unit* /*killer*/) override
             {
-                if (Creature* Auriaya = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_AURIAYA)))
+                if (Creature* Auriaya = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_AURIAYA)))
                     Auriaya->AI()->DoAction(ACTION_CRAZY_CAT_LADY);
             }
 
@@ -461,7 +461,7 @@ class npc_feral_defender : public CreatureScript
             void JustDied(Unit* /*killer*/) override
             {
                 DoCast(me, SPELL_SUMMON_ESSENCE);
-                if (Creature* Auriaya = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_AURIAYA)))
+                if (Creature* Auriaya = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_AURIAYA)))
                     Auriaya->AI()->DoAction(ACTION_RESPAWN_DEFENDER);
             }
 
diff --git a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_flame_leviathan.cpp b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_flame_leviathan.cpp
index 5f65d0ea89e..ec42ba82f36 100644
--- a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_flame_leviathan.cpp
+++ b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_flame_leviathan.cpp
@@ -227,7 +227,6 @@ class boss_flame_leviathan : public CreatureScript
             boss_flame_leviathanAI(Creature* creature) : BossAI(creature, BOSS_LEVIATHAN), vehicle(creature->GetVehicleKit())
             {
                 Initialize();
-                _pursueTarget = 0;
             }
 
             void Initialize()
@@ -273,7 +272,7 @@ class boss_flame_leviathan : public CreatureScript
                 _Reset();
                 //resets shutdown counter to 0.  2 or 4 depending on raid mode
                 Shutdown = 0;
-                _pursueTarget = 0;
+                _pursueTarget.Clear();
 
                 me->SetReactState(REACT_DEFENSIVE);
             }
@@ -557,7 +556,7 @@ class boss_flame_leviathan : public CreatureScript
                     }
                 }
 
-                uint64 _pursueTarget;
+                ObjectGuid _pursueTarget;
         };
 
         CreatureAI* GetAI(Creature* creature) const override
@@ -1003,7 +1002,7 @@ public:
             npc_escortAI::UpdateAI(diff);
 
             if (!HasEscortState(STATE_ESCORT_ESCORTING))
-                Start(false, true, 0, NULL, false, true);
+                Start(false, true, ObjectGuid::Empty, NULL, false, true);
             else
             {
                 if (infernoTimer <= diff)
@@ -1208,7 +1207,7 @@ class npc_lorekeeper : public CreatureScript
                     player->SEND_GOSSIP_MENU(player->GetGossipTextId(creature), creature->GetGUID());
                     break;
                 case GOSSIP_ACTION_INFO_DEF+2:
-                    if (Creature* leviathan = instance->instance->GetCreature(instance->GetData64(BOSS_LEVIATHAN)))
+                    if (Creature* leviathan = instance->instance->GetCreature(instance->GetGuidData(BOSS_LEVIATHAN)))
                     {
                         leviathan->AI()->DoAction(ACTION_START_HARD_MODE);
                         creature->SetVisible(false);
@@ -1670,7 +1669,7 @@ class FlameLeviathanPursuedTargetSelector
             //! Vehicle must be in use by player
             bool playerFound = false;
             for (SeatMap::const_iterator itr = vehicle->Seats.begin(); itr != vehicle->Seats.end() && !playerFound; ++itr)
-                if (IS_PLAYER_GUID(itr->second.Passenger.Guid))
+                if (itr->second.Passenger.Guid.IsPlayer())
                     playerFound = true;
 
             return !playerFound;
diff --git a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_freya.cpp b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_freya.cpp
index ecebeb8d4e5..93fee8d1964 100644
--- a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_freya.cpp
+++ b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_freya.cpp
@@ -226,7 +226,6 @@ class npc_iron_roots : public CreatureScript
                 me->ApplySpellImmune(0, IMMUNITY_ID, 49560, true); // Death Grip
                 me->setFaction(14);
                 me->SetReactState(REACT_PASSIVE);
-                summonerGUID = 0;
             }
 
             void IsSummonedBy(Unit* summoner) override
@@ -251,7 +250,7 @@ class npc_iron_roots : public CreatureScript
             }
 
         private:
-            uint64 summonerGUID;
+            ObjectGuid summonerGUID;
         };
 
         CreatureAI* GetAI(Creature* creature) const override
@@ -284,7 +283,7 @@ class boss_freya : public CreatureScript
 
                 for (uint8 i = 0; i < 3; ++i)
                     for (uint8 n = 0; n < 2; ++n)
-                        ElementalGUID[i][n] = 0;
+                        ElementalGUID[i][n].Clear();
                 for (uint8 i = 0; i < 6; ++i)
                     for (uint8 n = 0; n < 2; ++n)
                         deforestation[i][n] = 0;
@@ -297,7 +296,7 @@ class boss_freya : public CreatureScript
                     random[n] = false;
             }
 
-            uint64 ElementalGUID[3][2];
+            ObjectGuid ElementalGUID[3][2];
 
             uint32 deforestation[6][2];
             uint32 elementalTimer[2];
@@ -340,7 +339,7 @@ class boss_freya : public CreatureScript
                 Creature* Elder[3];
                 for (uint8 n = 0; n < 3; ++n)
                 {
-                    Elder[n] = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_BRIGHTLEAF + n));
+                    Elder[n] = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_BRIGHTLEAF + n));
                     if (Elder[n] && Elder[n]->IsAlive())
                     {
                         me->AddAura(SPELL_DRAINED_OF_POWER, Elder[n]);
@@ -615,7 +614,7 @@ class boss_freya : public CreatureScript
                 Creature* Elder[3];
                 for (uint8 n = 0; n < 3; ++n)
                 {
-                    Elder[n] = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_BRIGHTLEAF + n));
+                    Elder[n] = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_BRIGHTLEAF + n));
                     if (Elder[n] && Elder[n]->IsAlive())
                     {
                         Elder[n]->RemoveAllAuras();
@@ -715,10 +714,10 @@ class boss_elder_brightleaf : public CreatureScript
 
                 if (killer->GetTypeId() == TYPEID_PLAYER)
                 {
-                    if (Creature* Ironbranch = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_IRONBRANCH)))
+                    if (Creature* Ironbranch = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_IRONBRANCH)))
                         Ironbranch->AI()->DoAction(ACTION_ELDER_DEATH);
 
-                    if (Creature* Stonebark = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_STONEBARK)))
+                    if (Creature* Stonebark = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_STONEBARK)))
                         Stonebark->AI()->DoAction(ACTION_ELDER_DEATH);
                 }
             }
@@ -822,10 +821,10 @@ class boss_elder_stonebark : public CreatureScript
 
                 if (killer->GetTypeId() == TYPEID_PLAYER)
                 {
-                    if (Creature* Ironbranch = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_IRONBRANCH)))
+                    if (Creature* Ironbranch = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_IRONBRANCH)))
                         Ironbranch->AI()->DoAction(ACTION_ELDER_DEATH);
 
-                    if (Creature* Brightleaf = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_BRIGHTLEAF)))
+                    if (Creature* Brightleaf = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_BRIGHTLEAF)))
                         Brightleaf->AI()->DoAction(ACTION_ELDER_DEATH);
                 }
             }
@@ -935,10 +934,10 @@ class boss_elder_ironbranch : public CreatureScript
 
                 if (killer->GetTypeId() == TYPEID_PLAYER)
                 {
-                    if (Creature* Brightleaf = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_BRIGHTLEAF)))
+                    if (Creature* Brightleaf = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_BRIGHTLEAF)))
                         Brightleaf->AI()->DoAction(ACTION_ELDER_DEATH);
 
-                    if (Creature* Stonebark = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_STONEBARK)))
+                    if (Creature* Stonebark = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_STONEBARK)))
                         Stonebark->AI()->DoAction(ACTION_ELDER_DEATH);
                 }
             }
@@ -1076,7 +1075,7 @@ class npc_ancient_water_spirit : public CreatureScript
             {
                 Initialize();
                 instance = me->GetInstanceScript();
-                if (Creature* Freya = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_FREYA)))
+                if (Creature* Freya = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_FREYA)))
                     waveCount = ENSURE_AI(boss_freya::boss_freyaAI, Freya->AI())->trioWaveCount;
                 else
                     waveCount = 0;
@@ -1114,7 +1113,7 @@ class npc_ancient_water_spirit : public CreatureScript
 
             void JustDied(Unit* /*killer*/) override
             {
-                if (Creature* Freya = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_FREYA)))
+                if (Creature* Freya = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_FREYA)))
                 {
                     ENSURE_AI(boss_freya::boss_freyaAI, Freya->AI())->checkElementalAlive[waveCount] = false;
                     ENSURE_AI(boss_freya::boss_freyaAI, Freya->AI())->LasherDead(1);
@@ -1144,7 +1143,7 @@ class npc_storm_lasher : public CreatureScript
             {
                 Initialize();
                 instance = me->GetInstanceScript();
-                if (Creature* Freya = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_FREYA)))
+                if (Creature* Freya = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_FREYA)))
                     waveCount = ENSURE_AI(boss_freya::boss_freyaAI, Freya->AI())->trioWaveCount;
                 else
                     waveCount = 0;
@@ -1188,7 +1187,7 @@ class npc_storm_lasher : public CreatureScript
 
             void JustDied(Unit* /*killer*/) override
             {
-                if (Creature* Freya = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_FREYA)))
+                if (Creature* Freya = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_FREYA)))
                 {
                     ENSURE_AI(boss_freya::boss_freyaAI, Freya->AI())->checkElementalAlive[waveCount] = false;
                     ENSURE_AI(boss_freya::boss_freyaAI, Freya->AI())->LasherDead(2);
@@ -1218,7 +1217,7 @@ class npc_snaplasher : public CreatureScript
             npc_snaplasherAI(Creature* creature) : ScriptedAI(creature)
             {
                 instance = me->GetInstanceScript();
-                if (Creature* Freya = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_FREYA)))
+                if (Creature* Freya = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_FREYA)))
                     waveCount = ENSURE_AI(boss_freya::boss_freyaAI, Freya->AI())->trioWaveCount;
                 else
                     waveCount = 0;
@@ -1237,7 +1236,7 @@ class npc_snaplasher : public CreatureScript
 
             void JustDied(Unit* /*killer*/) override
             {
-                if (Creature* Freya = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_FREYA)))
+                if (Creature* Freya = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_FREYA)))
                 {
                     ENSURE_AI(boss_freya::boss_freyaAI, Freya->AI())->checkElementalAlive[waveCount] = false;
                     ENSURE_AI(boss_freya::boss_freyaAI, Freya->AI())->LasherDead(4);
@@ -1543,17 +1542,17 @@ class spell_freya_attuned_to_nature_dose_reduction : public SpellScriptLoader
                     case SPELL_ATTUNED_TO_NATURE_2_DOSE_REDUCTION:
                         if (target->HasAura(GetEffectValue()))
                             for (uint8 n = 0; n < 2; ++n)
-                                target->RemoveAuraFromStack(GetEffectValue(), 0, AURA_REMOVE_BY_DEFAULT);
+                                target->RemoveAuraFromStack(GetEffectValue());
                         break;
                     case SPELL_ATTUNED_TO_NATURE_10_DOSE_REDUCTION:
                         if (target->HasAura(GetEffectValue()))
                             for (uint8 n = 0; n < 10; ++n)
-                                target->RemoveAuraFromStack(GetEffectValue(), 0, AURA_REMOVE_BY_DEFAULT);
+                                target->RemoveAuraFromStack(GetEffectValue());
                         break;
                     case SPELL_ATTUNED_TO_NATURE_25_DOSE_REDUCTION:
                         if (target->HasAura(GetEffectValue()))
                             for (uint8 n = 0; n < 25; ++n)
-                                target->RemoveAuraFromStack(GetEffectValue(), 0, AURA_REMOVE_BY_DEFAULT);
+                                target->RemoveAuraFromStack(GetEffectValue());
                         break;
                     default:
                         break;
diff --git a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_general_vezax.cpp b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_general_vezax.cpp
index 5d4ddf1865c..9cb5e71b471 100644
--- a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_general_vezax.cpp
+++ b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_general_vezax.cpp
@@ -338,7 +338,7 @@ class boss_saronite_animus : public CreatureScript
 
             void JustDied(Unit* /*killer*/) override
             {
-                if (Creature* Vezax = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_VEZAX)))
+                if (Creature* Vezax = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_VEZAX)))
                     Vezax->AI()->DoAction(ACTION_ANIMUS_DIE);
             }
 
@@ -433,7 +433,7 @@ class npc_saronite_vapors : public CreatureScript
                     DoCast(me, SPELL_SARONITE_VAPORS);
                     me->DespawnOrUnsummon(30000);
 
-                    if (Creature* Vezax = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_VEZAX)))
+                    if (Creature* Vezax = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_VEZAX)))
                         Vezax->AI()->DoAction(ACTION_VAPORS_DIE);
                 }
             }
diff --git a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_hodir.cpp b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_hodir.cpp
index 42c0323a714..f1cfea0e58f 100644
--- a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_hodir.cpp
+++ b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_hodir.cpp
@@ -189,13 +189,13 @@ class npc_flash_freeze : public CreatureScript
 
             void Initialize()
             {
-                targetGUID = 0;
+                targetGUID.Clear();
                 checkDespawnTimer = 1000;
             }
 
             InstanceScript* instance;
 
-            uint64 targetGUID;
+            ObjectGuid targetGUID;
             uint32 checkDespawnTimer;
 
             void Reset() override
@@ -236,7 +236,7 @@ class npc_flash_freeze : public CreatureScript
                     // Prevents to have Ice Block on other place than target is
                     me->NearTeleportTo(target->GetPositionX(), target->GetPositionY(), target->GetPositionZ(), target->GetOrientation());
                     if (target->GetTypeId() == TYPEID_PLAYER)
-                        if (Creature* Hodir = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_HODIR)))
+                        if (Creature* Hodir = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_HODIR)))
                             Hodir->AI()->DoAction(ACTION_CHEESE_THE_FREEZE);
                 }
             }
@@ -260,12 +260,11 @@ class npc_ice_block : public CreatureScript
                 instance = me->GetInstanceScript();
                 me->SetDisplayId(me->GetCreatureTemplate()->Modelid2);
                 me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_DISABLE_MOVE | UNIT_FLAG_STUNNED | UNIT_FLAG_PACIFIED);
-                targetGUID = 0;
             }
 
             InstanceScript* instance;
 
-            uint64 targetGUID;
+            ObjectGuid targetGUID;
 
             void IsSummonedBy(Unit* summoner) override
             {
@@ -288,7 +287,7 @@ class npc_ice_block : public CreatureScript
                 {
                     Helper->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_DISABLE_MOVE | UNIT_FLAG_STUNNED | UNIT_FLAG_PACIFIED);
 
-                    if (Creature* Hodir = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_HODIR)))
+                    if (Creature* Hodir = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_HODIR)))
                     {
                         if (!Hodir->IsInCombat())
                         {
@@ -691,7 +690,7 @@ class npc_hodir_priest : public CreatureScript
 
             void JustDied(Unit* /*killer*/) override
              {
-                if (Creature* Hodir = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_HODIR)))
+                if (Creature* Hodir = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_HODIR)))
                     Hodir->AI()->DoAction(ACTION_I_HAVE_THE_COOLEST_FRIENDS);
               }
 
@@ -753,7 +752,7 @@ class npc_hodir_shaman : public CreatureScript
 
             void JustDied(Unit* /*killer*/) override
              {
-                if (Creature* Hodir = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_HODIR)))
+                if (Creature* Hodir = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_HODIR)))
                     Hodir->AI()->DoAction(ACTION_I_HAVE_THE_COOLEST_FRIENDS);
               }
 
@@ -814,7 +813,7 @@ class npc_hodir_druid : public CreatureScript
 
             void JustDied(Unit* /*killer*/) override
              {
-                if (Creature* Hodir = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_HODIR)))
+                if (Creature* Hodir = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_HODIR)))
                     Hodir->AI()->DoAction(ACTION_I_HAVE_THE_COOLEST_FRIENDS);
               }
 
@@ -894,7 +893,7 @@ class npc_hodir_mage : public CreatureScript
 
             void JustDied(Unit* /*killer*/) override
              {
-                  if (Creature* Hodir = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_HODIR)))
+                  if (Creature* Hodir = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_HODIR)))
                     Hodir->AI()->DoAction(ACTION_I_HAVE_THE_COOLEST_FRIENDS);
               }
 
@@ -990,7 +989,7 @@ class spell_biting_cold : public SpellScriptLoader
             }
 
         private:
-            typedef std::list< std::pair<uint64, uint8> > TargetList;
+            typedef std::list<std::pair<ObjectGuid, uint8>> TargetList;
             TargetList listOfTargets;
         };
 
diff --git a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_ignis.cpp b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_ignis.cpp
index f0f918f7e39..d4fbf959c53 100644
--- a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_ignis.cpp
+++ b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_ignis.cpp
@@ -124,7 +124,7 @@ class boss_ignis : public CreatureScript
 
             void Initialize()
             {
-                _slagPotGUID = 0;
+                _slagPotGUID.Clear();
                 _shattered = false;
                 _firstConstructKill = 0;
             }
@@ -251,7 +251,7 @@ class boss_ignis : public CreatureScript
                             {
                                 slagPotTarget->ExitVehicle();
                                 slagPotTarget = NULL;
-                                _slagPotGUID = 0;
+                                _slagPotGUID.Clear();
                                 events.CancelEvent(EVENT_END_POT);
                             }
                             break;
@@ -282,7 +282,7 @@ class boss_ignis : public CreatureScript
             }
 
         private:
-            uint64 _slagPotGUID;
+            ObjectGuid _slagPotGUID;
             Vehicle* _vehicle;
             time_t _firstConstructKill;
             bool _shattered;
@@ -323,7 +323,7 @@ class npc_iron_construct : public CreatureScript
                 if (me->HasAura(SPELL_BRITTLE) && damage >= 5000)
                 {
                     DoCast(SPELL_SHATTER);
-                    if (Creature* ignis = ObjectAccessor::GetCreature(*me, _instance->GetData64(BOSS_IGNIS)))
+                    if (Creature* ignis = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(BOSS_IGNIS)))
                         if (ignis->AI())
                             ignis->AI()->DoAction(ACTION_REMOVE_BUFF);
 
@@ -385,7 +385,7 @@ class npc_scorch_ground : public CreatureScript
             void Initialize()
             {
                 _heat = false;
-                _constructGUID = 0;
+                _constructGUID.Clear();
                 _heatTimer = 0;
             }
 
@@ -429,7 +429,7 @@ class npc_scorch_ground : public CreatureScript
             }
 
         private:
-            uint64 _constructGUID;
+            ObjectGuid _constructGUID;
             uint32 _heatTimer;
             bool _heat;
         };
diff --git a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_kologarn.cpp b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_kologarn.cpp
index 71a89c0e508..9486d95639f 100644
--- a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_kologarn.cpp
+++ b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_kologarn.cpp
@@ -115,7 +115,7 @@ class boss_kologarn : public CreatureScript
 
             Vehicle* vehicle;
             bool left, right;
-            uint64 eyebeamTarget;
+            ObjectGuid eyebeamTarget;
 
             void EnterCombat(Unit* /*who*/) override
             {
@@ -139,7 +139,7 @@ class boss_kologarn : public CreatureScript
             {
                 _Reset();
                 me->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
-                eyebeamTarget = 0;
+                eyebeamTarget.Clear();
             }
 
             void JustDied(Unit* /*killer*/) override
@@ -339,7 +339,7 @@ class spell_ulduar_rubble_summon : public SpellScriptLoader
                 if (!caster)
                     return;
 
-                uint64 originalCaster = caster->GetInstanceScript() ? caster->GetInstanceScript()->GetData64(BOSS_KOLOGARN) : 0;
+                ObjectGuid originalCaster = caster->GetInstanceScript() ? caster->GetInstanceScript()->GetGuidData(BOSS_KOLOGARN) : ObjectGuid::Empty;
                 uint32 spellId = GetEffectValue();
                 for (uint8 i = 0; i < 5; ++i)
                     caster->CastSpell(caster, spellId, true, NULL, NULL, originalCaster);
diff --git a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_mimiron.cpp b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_mimiron.cpp
index 3a137a8658e..880eeba206b 100644
--- a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_mimiron.cpp
+++ b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_mimiron.cpp
@@ -347,9 +347,9 @@ static bool IsEncounterFinished(Unit* who)
 {
     InstanceScript* instance = who->GetInstanceScript();
 
-    Creature* mkii = ObjectAccessor::GetCreature(*who, instance->GetData64(DATA_LEVIATHAN_MK_II));
-    Creature* vx001 = ObjectAccessor::GetCreature(*who, instance->GetData64(DATA_VX_001));
-    Creature* aerial = ObjectAccessor::GetCreature(*who, instance->GetData64(DATA_AERIAL_COMMAND_UNIT));
+    Creature* mkii = ObjectAccessor::GetCreature(*who, instance->GetGuidData(DATA_LEVIATHAN_MK_II));
+    Creature* vx001 = ObjectAccessor::GetCreature(*who, instance->GetGuidData(DATA_VX_001));
+    Creature* aerial = ObjectAccessor::GetCreature(*who, instance->GetGuidData(DATA_AERIAL_COMMAND_UNIT));
     if (!mkii || !vx001 || !aerial)
         return false;
 
@@ -363,7 +363,7 @@ static bool IsEncounterFinished(Unit* who)
         mkii->DespawnOrUnsummon(120000);
         vx001->DespawnOrUnsummon(120000);
         aerial->DespawnOrUnsummon(120000);
-        if (Creature* mimiron = ObjectAccessor::GetCreature(*who, instance->GetData64(BOSS_MIMIRON)))
+        if (Creature* mimiron = ObjectAccessor::GetCreature(*who, instance->GetGuidData(BOSS_MIMIRON)))
             mimiron->AI()->JustDied(who);
         return true;
     }
@@ -395,7 +395,7 @@ class boss_mimiron : public CreatureScript
                         break;
                     case DO_ACTIVATE_V0L7R0N_1:
                         Talk(SAY_AERIAL_DEATH);
-                        if (Creature* mkii = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_LEVIATHAN_MK_II)))
+                        if (Creature* mkii = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_LEVIATHAN_MK_II)))
                             mkii->GetMotionMaster()->MovePoint(WP_MKII_P4_POS_1, VehicleRelocation[WP_MKII_P4_POS_1]);
                         break;
                     case DO_ACTIVATE_V0L7R0N_2:
@@ -420,7 +420,7 @@ class boss_mimiron : public CreatureScript
                 me->RemoveAurasDueToSpell(SPELL_WELD);
                 DoCast(me->GetVehicleBase(), SPELL_SEAT_6);
 
-                if (GameObject* button = ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_MIMIRON_BUTTON)))
+                if (GameObject* button = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_MIMIRON_BUTTON)))
                     button->SetFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
 
                 if (_fireFighter)
@@ -450,14 +450,14 @@ class boss_mimiron : public CreatureScript
                 _Reset();
                 me->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
 
-                if (GameObject* elevator = ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_MIMIRON_ELEVATOR)))
+                if (GameObject* elevator = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_MIMIRON_ELEVATOR)))
                     elevator->SetGoState(GO_STATE_ACTIVE);
 
                 if (_fireFighter)
-                    if (Creature* computer = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_COMPUTER)))
+                    if (Creature* computer = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_COMPUTER)))
                         computer->AI()->DoAction(DO_DEACTIVATE_COMPUTER);
 
-                if (GameObject* button = ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_MIMIRON_BUTTON)))
+                if (GameObject* button = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_MIMIRON_BUTTON)))
                 {
                     button->SetGoState(GO_STATE_READY);
                     button->RemoveFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
@@ -466,7 +466,7 @@ class boss_mimiron : public CreatureScript
                 _fireFighter = false;
                 DoCast(me, SPELL_WELD);
 
-                if (Unit* mkii = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_LEVIATHAN_MK_II)))
+                if (Unit* mkii = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_LEVIATHAN_MK_II)))
                     DoCast(mkii, SPELL_SEAT_3);
             }
 
@@ -485,7 +485,7 @@ class boss_mimiron : public CreatureScript
                     switch (eventId)
                     {
                         case EVENT_SUMMON_FLAMES:
-                            if (Unit* worldtrigger = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_MIMIRON_WORLD_TRIGGER)))
+                            if (Unit* worldtrigger = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_MIMIRON_WORLD_TRIGGER)))
                                 worldtrigger->CastCustomSpell(SPELL_SCRIPT_EFFECT_SUMMON_FLAMES_INITIAL, SPELLVALUE_MAX_TARGETS, 3, NULL, true, NULL, NULL, me->GetGUID());
                             events.RescheduleEvent(EVENT_SUMMON_FLAMES, 28000);
                             break;
@@ -521,21 +521,21 @@ class boss_mimiron : public CreatureScript
                             events.ScheduleEvent(EVENT_VX001_ACTIVATION_4, 5000);
                             break;
                         case EVENT_VX001_ACTIVATION_4:
-                            if (GameObject* elevator = ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_MIMIRON_ELEVATOR)))
+                            if (GameObject* elevator = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_MIMIRON_ELEVATOR)))
                                 elevator->SetGoState(GO_STATE_READY);
-                            if (Unit* worldtrigger = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_MIMIRON_WORLD_TRIGGER)))
+                            if (Unit* worldtrigger = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_MIMIRON_WORLD_TRIGGER)))
                                 worldtrigger->CastSpell(worldtrigger, SPELL_ELEVATOR_KNOCKBACK);
                             events.ScheduleEvent(EVENT_VX001_ACTIVATION_5, 6000);
                             break;
                         case EVENT_VX001_ACTIVATION_5:
-                            if (GameObject* elevator = ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_MIMIRON_ELEVATOR)))
+                            if (GameObject* elevator = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_MIMIRON_ELEVATOR)))
                                 elevator->SetGoState(GO_STATE_ACTIVE_ALTERNATIVE);
                             if (Creature* vx001 = me->SummonCreature(NPC_VX_001, VX001SummonPos, TEMPSUMMON_CORPSE_TIMED_DESPAWN, 120000))
                                 vx001->CastSpell(vx001, SPELL_FREEZE_ANIM);
                             events.ScheduleEvent(EVENT_VX001_ACTIVATION_6, 19000);
                             break;
                         case EVENT_VX001_ACTIVATION_6:
-                            if (Unit* vx001 = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_VX_001)))
+                            if (Unit* vx001 = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_VX_001)))
                                 DoCast(vx001, SPELL_SEAT_1);
                             events.ScheduleEvent(EVENT_VX001_ACTIVATION_7, 3500);
                             break;
@@ -566,7 +566,7 @@ class boss_mimiron : public CreatureScript
                             events.ScheduleEvent(EVENT_AERIAL_ACTIVATION_4, 5000);
                             break;
                         case EVENT_AERIAL_ACTIVATION_4:
-                            if (Unit* aerial = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_AERIAL_COMMAND_UNIT)))
+                            if (Unit* aerial = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_AERIAL_COMMAND_UNIT)))
                                 me->CastSpell(aerial, SPELL_SEAT_1);
                             events.ScheduleEvent(EVENT_AERIAL_ACTIVATION_5, 2000);
                             break;
@@ -579,14 +579,14 @@ class boss_mimiron : public CreatureScript
                                 acu->AI()->DoAction(_fireFighter? DO_HARDMODE_AERIAL : DO_START_AERIAL);
                             break;
                         case EVENT_VOL7RON_ACTIVATION_1:
-                            if (Creature* mkii = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_LEVIATHAN_MK_II)))
+                            if (Creature* mkii = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_LEVIATHAN_MK_II)))
                                 mkii->SetFacingTo(float(M_PI));
                             events.ScheduleEvent(EVENT_VOL7RON_ACTIVATION_2, 1000);
                             break;
                         case EVENT_VOL7RON_ACTIVATION_2:
-                            if (Creature* mkii = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_LEVIATHAN_MK_II)))
+                            if (Creature* mkii = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_LEVIATHAN_MK_II)))
                             {
-                                if (Creature* vx001 = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_VX_001)))
+                                if (Creature* vx001 = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_VX_001)))
                                 {
                                     vx001->RemoveAurasDueToSpell(SPELL_TORSO_DISABLED);
                                     vx001->CastSpell(mkii, SPELL_MOUNT_MKII);
@@ -595,14 +595,14 @@ class boss_mimiron : public CreatureScript
                             events.ScheduleEvent(EVENT_VOL7RON_ACTIVATION_3, 4500);
                             break;
                         case EVENT_VOL7RON_ACTIVATION_3:
-                            if (Creature* mkii = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_LEVIATHAN_MK_II)))
+                            if (Creature* mkii = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_LEVIATHAN_MK_II)))
                                 mkii->GetMotionMaster()->MovePoint(WP_MKII_P4_POS_4, VehicleRelocation[WP_MKII_P4_POS_4]);
                             events.ScheduleEvent(EVENT_VOL7RON_ACTIVATION_4, 5000);
                             break;
                         case EVENT_VOL7RON_ACTIVATION_4:
-                            if (Creature* vx001 = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_VX_001)))
+                            if (Creature* vx001 = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_VX_001)))
                             {
-                                if (Creature* aerial = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_AERIAL_COMMAND_UNIT)))
+                                if (Creature* aerial = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_AERIAL_COMMAND_UNIT)))
                                 {
                                     aerial->GetMotionMaster()->MoveLand(0, (aerial->GetPositionX(), aerial->GetPositionY(), aerial->GetPositionZMinusOffset()));
                                     aerial->SetUInt32Value(UNIT_FIELD_BYTES_1, 0);
@@ -617,13 +617,13 @@ class boss_mimiron : public CreatureScript
                             events.ScheduleEvent(EVENT_VOL7RON_ACTIVATION_6, 3000);
                             break;
                         case EVENT_VOL7RON_ACTIVATION_6:
-                            if (Creature* vx001 = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_VX_001)))
+                            if (Creature* vx001 = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_VX_001)))
                                 DoCast(vx001, SPELL_SEAT_2);
                             events.ScheduleEvent(EVENT_VOL7RON_ACTIVATION_7, 5000);
                             break;
                         case EVENT_VOL7RON_ACTIVATION_7:
                             for (uint8 data = DATA_LEVIATHAN_MK_II; data <= DATA_AERIAL_COMMAND_UNIT; ++data)
-                                if (Creature* mimironVehicle = ObjectAccessor::GetCreature(*me, instance->GetData64(data)))
+                                if (Creature* mimironVehicle = ObjectAccessor::GetCreature(*me, instance->GetGuidData(data)))
                                     mimironVehicle->AI()->DoAction(DO_ASSEMBLED_COMBAT);
                             break;
                         case EVENT_OUTTRO_1:
@@ -636,7 +636,7 @@ class boss_mimiron : public CreatureScript
                             Talk(SAY_V07TRON_DEATH);
                             if (_fireFighter)
                             {
-                                if (Creature* computer = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_COMPUTER)))
+                                if (Creature* computer = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_COMPUTER)))
                                     computer->AI()->DoAction(DO_DEACTIVATE_COMPUTER);
                                 me->SummonGameObject(RAID_MODE(GO_CACHE_OF_INNOVATION_FIREFIGHTER, GO_CACHE_OF_INNOVATION_FIREFIGHTER_HERO), 2744.040f, 2569.352f, 364.3135f, 3.124123f, 0.f, 0.f, 0.9999619f, 0.008734641f, 604800);
                             }
@@ -772,7 +772,7 @@ class boss_leviathan_mk_ii : public CreatureScript
             void KilledUnit(Unit* victim) override
             {
                 if (victim->GetTypeId() == TYPEID_PLAYER)
-                    if (Creature* mimiron = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_MIMIRON)))
+                    if (Creature* mimiron = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_MIMIRON)))
                         mimiron->AI()->Talk(events.IsInPhase(PHASE_LEVIATHAN_MK_II) ? SAY_MKII_SLAY : SAY_V07TRON_SLAY);
             }
 
@@ -787,7 +787,7 @@ class boss_leviathan_mk_ii : public CreatureScript
                         me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
                         DoCast(me, SPELL_HALF_HEAL);
 
-                        if (Creature* mimiron = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_MIMIRON)))
+                        if (Creature* mimiron = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_MIMIRON)))
                             mimiron->AI()->DoAction(DO_ACTIVATE_VX001);
                         break;
                     case WP_MKII_P4_POS_1:
@@ -797,7 +797,7 @@ class boss_leviathan_mk_ii : public CreatureScript
                         events.ScheduleEvent(EVENT_MOVE_POINT_3, 1);
                         break;
                     case WP_MKII_P4_POS_3:
-                        if (Creature* mimiron = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_MIMIRON)))
+                        if (Creature* mimiron = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_MIMIRON)))
                             mimiron->AI()->DoAction(DO_ACTIVATE_V0L7R0N_2);
                         break;
                     case WP_MKII_P4_POS_4:
@@ -937,7 +937,7 @@ class boss_vx_001 : public CreatureScript
                         me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE); // | UNIT_FLAG_NOT_SELECTABLE);
                         DoCast(me, SPELL_HALF_HEAL); // has no effect, wat
                         DoCast(me, SPELL_TORSO_DISABLED);
-                        if (Creature* mimiron = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_MIMIRON)))
+                        if (Creature* mimiron = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_MIMIRON)))
                             mimiron->AI()->DoAction(DO_ACTIVATE_AERIAL);
                     }
                     else if (events.IsInPhase(PHASE_VOL7RON))
@@ -1008,7 +1008,7 @@ class boss_vx_001 : public CreatureScript
             void KilledUnit(Unit* victim) override
             {
                 if (victim->GetTypeId() == TYPEID_PLAYER)
-                    if (Creature* mimiron = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_MIMIRON)))
+                    if (Creature* mimiron = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_MIMIRON)))
                         mimiron->AI()->Talk(events.IsInPhase(PHASE_VX_001) ? SAY_VX001_SLAY : SAY_V07TRON_SLAY);
             }
 
@@ -1028,7 +1028,7 @@ class boss_vx_001 : public CreatureScript
                 // Handle rotation during SPELL_SPINNING_UP, SPELL_P3WX2_LASER_BARRAGE, SPELL_RAPID_BURST, and SPELL_HAND_PULSE_LEFT/RIGHT
                 if (me->HasUnitState(UNIT_STATE_CASTING))
                 {
-                    if (Creature* channelTarget = ObjectAccessor::GetCreature(*me, me->GetUInt64Value(UNIT_FIELD_CHANNEL_OBJECT)))
+                    if (Creature* channelTarget = ObjectAccessor::GetCreature(*me, me->GetChannelObjectGuid()))
                         me->SetFacingToObject(channelTarget);
                     return;
                 }
@@ -1183,7 +1183,7 @@ class boss_aerial_command_unit : public CreatureScript
             void KilledUnit(Unit* victim) override
             {
                 if (victim->GetTypeId() == TYPEID_PLAYER)
-                    if (Creature* mimiron = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_MIMIRON)))
+                    if (Creature* mimiron = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_MIMIRON)))
                         mimiron->AI()->Talk(events.IsInPhase(PHASE_AERIAL_COMMAND_UNIT) ? SAY_AERIAL_SLAY : SAY_V07TRON_SLAY);
             }
 
@@ -1193,7 +1193,7 @@ class boss_aerial_command_unit : public CreatureScript
                 {
                     me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
 
-                    if (Creature* mimiron = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_MIMIRON)))
+                    if (Creature* mimiron = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_MIMIRON)))
                         mimiron->AI()->DoAction(DO_ACTIVATE_V0L7R0N_1);
                 }
             }
@@ -1414,7 +1414,7 @@ class npc_mimiron_computer : public CreatureScript
                     {
                         case EVENT_SELF_DESTRUCT_10:
                             Talk(SAY_SELF_DESTRUCT_10);
-                            if (Creature* mimiron = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_MIMIRON)))
+                            if (Creature* mimiron = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_MIMIRON)))
                                 mimiron->AI()->DoAction(DO_ACTIVATE_HARD_MODE);
                             events.ScheduleEvent(EVENT_SELF_DESTRUCT_9, 60000);
                             break;
@@ -1456,7 +1456,7 @@ class npc_mimiron_computer : public CreatureScript
                             break;
                         case EVENT_SELF_DESTRUCT_FINALIZED:
                             Talk(SAY_SELF_DESTRUCT_FINALIZED);
-                            if (Creature* mimiron = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_MIMIRON)))
+                            if (Creature* mimiron = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_MIMIRON)))
                                 mimiron->AI()->DoAction(DO_ACTIVATE_SELF_DESTRUCT);
                             DoCast(me, SPELL_SELF_DESTRUCTION_AURA);
                             DoCast(me, SPELL_SELF_DESTRUCTION_VISUAL);
@@ -1634,7 +1634,7 @@ class go_mimiron_hardmode_button : public GameObjectScript
             if (!instance)
                 return false;
 
-            if (Creature* computer = ObjectAccessor::GetCreature(*go, instance->GetData64(DATA_COMPUTER)))
+            if (Creature* computer = ObjectAccessor::GetCreature(*go, instance->GetGuidData(DATA_COMPUTER)))
                 computer->AI()->DoAction(DO_ACTIVATE_COMPUTER);
             go->SetGoState(GO_STATE_ACTIVE);
             go->SetFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
@@ -1656,7 +1656,7 @@ class spell_mimiron_bomb_bot : public SpellScriptLoader
             {
                 if (GetHitPlayer())
                     if (InstanceScript* instance = GetCaster()->GetInstanceScript())
-                        if (Creature* mkii = ObjectAccessor::GetCreature(*GetCaster(), instance->GetData64(DATA_LEVIATHAN_MK_II)))
+                        if (Creature* mkii = ObjectAccessor::GetCreature(*GetCaster(), instance->GetGuidData(DATA_LEVIATHAN_MK_II)))
                             mkii->AI()->SetData(DATA_SETUP_BOMB, 0);
             }
 
@@ -1953,7 +1953,7 @@ class spell_mimiron_p3wx2_laser_barrage : public SpellScriptLoader
 
             void OnHit(SpellEffIndex /*effIndex*/)
             {
-                GetCaster()->SetUInt64Value(UNIT_FIELD_CHANNEL_OBJECT, GetHitUnit()->GetGUID());
+                GetCaster()->SetChannelObjectGuid(GetHitUnit()->GetGUID());
             }
 
             void Register() override
@@ -2022,7 +2022,7 @@ class spell_mimiron_proximity_explosion : public SpellScriptLoader
             {
                 if (GetHitPlayer())
                     if (InstanceScript* instance = GetCaster()->GetInstanceScript())
-                        if (Creature* mkII = ObjectAccessor::GetCreature(*GetCaster(), instance->GetData64(DATA_LEVIATHAN_MK_II)))
+                        if (Creature* mkII = ObjectAccessor::GetCreature(*GetCaster(), instance->GetGuidData(DATA_LEVIATHAN_MK_II)))
                             mkII->AI()->SetData(DATA_SETUP_MINE, 0);
             }
 
@@ -2239,7 +2239,7 @@ class spell_mimiron_rocket_strike_damage : public SpellScriptLoader
             {
                 if (GetHitPlayer())
                     if (InstanceScript* instance = GetCaster()->GetInstanceScript())
-                        if (Creature* mkii = ObjectAccessor::GetCreature(*GetCaster(), instance->GetData64(DATA_LEVIATHAN_MK_II)))
+                        if (Creature* mkii = ObjectAccessor::GetCreature(*GetCaster(), instance->GetGuidData(DATA_LEVIATHAN_MK_II)))
                             mkii->AI()->SetData(DATA_SETUP_ROCKET, 0);
             }
 
@@ -2298,7 +2298,7 @@ class spell_mimiron_rocket_strike_target_select : public SpellScriptLoader
             void HandleScript(SpellEffIndex /*effIndex*/)
             {
                 if (InstanceScript* instance = GetCaster()->GetInstanceScript())
-                    GetCaster()->CastSpell(GetHitUnit(), SPELL_SUMMON_ROCKET_STRIKE, true, NULL, NULL, instance->GetData64(DATA_VX_001));
+                    GetCaster()->CastSpell(GetHitUnit(), SPELL_SUMMON_ROCKET_STRIKE, true, NULL, NULL, instance->GetGuidData(DATA_VX_001));
                 GetCaster()->SetDisplayId(11686);
             }
 
@@ -2357,7 +2357,7 @@ class spell_mimiron_spinning_up : public SpellScriptLoader
             void OnHit(SpellEffIndex /*effIndex*/)
             {
                 if (GetHitUnit() != GetCaster())
-                    GetCaster()->SetUInt64Value(UNIT_FIELD_CHANNEL_OBJECT, GetHitUnit()->GetGUID());
+                    GetCaster()->SetChannelObjectGuid(GetHitUnit()->GetGUID());
             }
 
             void Register() override
@@ -2394,7 +2394,7 @@ class spell_mimiron_summon_assault_bot : public SpellScriptLoader
                 if (Unit* caster = GetCaster())
                     if (InstanceScript* instance = caster->GetInstanceScript())
                         if (instance->GetBossState(BOSS_MIMIRON) == IN_PROGRESS)
-                            caster->CastSpell(caster, SPELL_SUMMON_ASSAULT_BOT, false, NULL, aurEff, instance->GetData64(DATA_AERIAL_COMMAND_UNIT));
+                            caster->CastSpell(caster, SPELL_SUMMON_ASSAULT_BOT, false, NULL, aurEff, instance->GetGuidData(DATA_AERIAL_COMMAND_UNIT));
             }
 
             void Register() override
@@ -2466,7 +2466,7 @@ class spell_mimiron_summon_fire_bot : public SpellScriptLoader
                 if (Unit* caster = GetCaster())
                     if (InstanceScript* instance = caster->GetInstanceScript())
                         if (instance->GetBossState(BOSS_MIMIRON) == IN_PROGRESS)
-                            caster->CastSpell(caster, SPELL_SUMMON_FIRE_BOT, false, NULL, aurEff, instance->GetData64(DATA_AERIAL_COMMAND_UNIT));
+                            caster->CastSpell(caster, SPELL_SUMMON_FIRE_BOT, false, NULL, aurEff, instance->GetGuidData(DATA_AERIAL_COMMAND_UNIT));
             }
 
             void Register() override
@@ -2662,7 +2662,7 @@ class spell_mimiron_summon_junk_bot : public SpellScriptLoader
                 if (Unit* caster = GetCaster())
                     if (InstanceScript* instance = caster->GetInstanceScript())
                         if (instance->GetBossState(BOSS_MIMIRON) == IN_PROGRESS)
-                            caster->CastSpell(caster, SPELL_SUMMON_JUNK_BOT, false, NULL, aurEff, instance->GetData64(DATA_AERIAL_COMMAND_UNIT));
+                            caster->CastSpell(caster, SPELL_SUMMON_JUNK_BOT, false, NULL, aurEff, instance->GetGuidData(DATA_AERIAL_COMMAND_UNIT));
             }
 
             void Register() override
diff --git a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_razorscale.cpp b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_razorscale.cpp
index d53ac6d91d6..cad6b045120 100644
--- a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_razorscale.cpp
+++ b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_razorscale.cpp
@@ -203,13 +203,13 @@ class boss_razorscale_controller : public CreatureScript
                 switch (spell->Id)
                 {
                     case SPELL_FLAMED:
-                        if (GameObject* Harpoon1 = ObjectAccessor::GetGameObject(*me, instance->GetData64(GO_RAZOR_HARPOON_1)))
+                        if (GameObject* Harpoon1 = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(GO_RAZOR_HARPOON_1)))
                             Harpoon1->RemoveFromWorld();
-                        if (GameObject* Harpoon2 = ObjectAccessor::GetGameObject(*me, instance->GetData64(GO_RAZOR_HARPOON_2)))
+                        if (GameObject* Harpoon2 = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(GO_RAZOR_HARPOON_2)))
                             Harpoon2->RemoveFromWorld();
-                        if (GameObject* Harpoon3 = ObjectAccessor::GetGameObject(*me, instance->GetData64(GO_RAZOR_HARPOON_3)))
+                        if (GameObject* Harpoon3 = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(GO_RAZOR_HARPOON_3)))
                             Harpoon3->RemoveFromWorld();
-                        if (GameObject* Harpoon4 = ObjectAccessor::GetGameObject(*me, instance->GetData64(GO_RAZOR_HARPOON_4)))
+                        if (GameObject* Harpoon4 = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(GO_RAZOR_HARPOON_4)))
                             Harpoon4->RemoveFromWorld();
                         DoAction(ACTION_HARPOON_BUILD);
                         DoAction(ACTION_PLACE_BROKEN_HARPOON);
@@ -312,7 +312,7 @@ class go_razorscale_harpoon : public GameObjectScript
         bool OnGossipHello(Player* /*player*/, GameObject* go) override
         {
             InstanceScript* instance = go->GetInstanceScript();
-            if (ObjectAccessor::GetCreature(*go, instance->GetData64(BOSS_RAZORSCALE)))
+            if (ObjectAccessor::GetCreature(*go, instance->GetGuidData(BOSS_RAZORSCALE)))
                 go->SetFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
             return false;
         }
@@ -357,14 +357,14 @@ class boss_razorscale : public CreatureScript
                 me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
                 me->SetReactState(REACT_PASSIVE);
                 Initialize();
-                if (Creature* commander = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_EXPEDITION_COMMANDER)))
+                if (Creature* commander = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_EXPEDITION_COMMANDER)))
                     commander->AI()->DoAction(ACTION_COMMANDER_RESET);
             }
 
             void EnterCombat(Unit* /*who*/) override
             {
                 _EnterCombat();
-                if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_RAZORSCALE_CONTROL)))
+                if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_RAZORSCALE_CONTROL)))
                     controller->AI()->DoAction(ACTION_HARPOON_BUILD);
                 me->SetSpeed(MOVE_FLIGHT, 3.0f, true);
                 me->SetReactState(REACT_PASSIVE);
@@ -379,7 +379,7 @@ class boss_razorscale : public CreatureScript
             void JustDied(Unit* /*killer*/) override
             {
                 _JustDied();
-                if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_RAZORSCALE_CONTROL)))
+                if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_RAZORSCALE_CONTROL)))
                     controller->AI()->Reset();
             }
 
@@ -455,7 +455,7 @@ class boss_razorscale : public CreatureScript
                                 me->SetCanFly(false);
                                 me->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
                                 me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_STUNNED | UNIT_FLAG_PACIFIED);
-                                if (Creature* commander = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_EXPEDITION_COMMANDER)))
+                                if (Creature* commander = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_EXPEDITION_COMMANDER)))
                                     commander->AI()->DoAction(ACTION_GROUND_PHASE);
                                 events.ScheduleEvent(EVENT_BREATH, 30000, 0, PHASE_GROUND);
                                 events.ScheduleEvent(EVENT_BUFFET, 33000, 0, PHASE_GROUND);
@@ -471,7 +471,7 @@ class boss_razorscale : public CreatureScript
                                 return;
                             case EVENT_BUFFET:
                                 DoCastAOE(SPELL_WINGBUFFET);
-                                if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_RAZORSCALE_CONTROL)))
+                                if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_RAZORSCALE_CONTROL)))
                                     controller->CastSpell(controller, SPELL_FLAMED, true);
                                 events.CancelEvent(EVENT_BUFFET);
                                 return;
@@ -602,12 +602,10 @@ class npc_expedition_commander : public CreatureScript
 
         struct npc_expedition_commanderAI : public ScriptedAI
         {
-            npc_expedition_commanderAI(Creature* creature) : ScriptedAI(creature)
+            npc_expedition_commanderAI(Creature* creature) : ScriptedAI(creature), summons(creature)
             {
                 Initialize();
                 instance = me->GetInstanceScript();
-                memset(Engineer, 0, sizeof(Engineer));
-                memset(Defender, 0, sizeof(Defender));
             }
 
             void Initialize()
@@ -618,18 +616,18 @@ class npc_expedition_commander : public CreatureScript
             }
 
             InstanceScript* instance;
-            std::list<uint64> summons;
+            SummonList summons;
 
             bool Greet;
             uint32 AttackStartTimer;
             uint8  Phase;
-            uint64 Engineer[4];
-            uint64 Defender[4];
+            ObjectGuid Engineer[4];
+            ObjectGuid Defender[4];
 
             void Reset() override
             {
                 Initialize();
-                summons.clear();
+                summons.DespawnAll();
             }
 
             void MoveInLineOfSight(Unit* who) override
@@ -644,7 +642,7 @@ class npc_expedition_commander : public CreatureScript
 
             void JustSummoned(Creature* summoned) override
             {
-                summons.push_back(summoned->GetGUID());
+                summons.Summon(summoned);
             }
 
             void DoAction(int32 action) override
@@ -655,7 +653,7 @@ class npc_expedition_commander : public CreatureScript
                         Talk(SAY_GROUND_PHASE);
                         break;
                     case ACTION_COMMANDER_RESET:
-                        summons.clear();
+                        summons.DespawnAll();
                         me->SetFlag(UNIT_NPC_FLAGS, UNIT_NPC_FLAG_GOSSIP);
                         break;
                 }
@@ -669,7 +667,7 @@ class npc_expedition_commander : public CreatureScript
                     {
                         case 1:
                             instance->SetBossState(BOSS_RAZORSCALE, IN_PROGRESS);
-                            summons.clear();
+                            summons.DespawnAll();
                             AttackStartTimer = 1000;
                             Phase = 2;
                             break;
@@ -715,7 +713,7 @@ class npc_expedition_commander : public CreatureScript
                             Phase = 5;
                             break;
                         case 5:
-                            if (Creature* Razorscale = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_RAZORSCALE)))
+                            if (Creature* Razorscale = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_RAZORSCALE)))
                             {
                                 Razorscale->AI()->DoAction(ACTION_EVENT_START);
                                 me->SetInCombatWith(Razorscale);
diff --git a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_xt002.cpp b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_xt002.cpp
index 18b9a3040fe..2032c7b861d 100644
--- a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_xt002.cpp
+++ b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_xt002.cpp
@@ -460,7 +460,7 @@ class npc_xt002_heart : public CreatureScript
 
             void JustDied(Unit* /*killer*/) override
             {
-                Creature* xt002 = _instance ? ObjectAccessor::GetCreature(*me, _instance->GetData64(BOSS_XT002)) : NULL;
+                Creature* xt002 = _instance ? ObjectAccessor::GetCreature(*me, _instance->GetGuidData(BOSS_XT002)) : NULL;
                 if (!xt002 || !xt002->AI())
                     return;
 
@@ -512,7 +512,7 @@ class npc_scrapbot : public CreatureScript
 
                 Initialize();
 
-                if (Creature* pXT002 = ObjectAccessor::GetCreature(*me, _instance->GetData64(BOSS_XT002)))
+                if (Creature* pXT002 = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(BOSS_XT002)))
                     me->GetMotionMaster()->MoveFollow(pXT002, 0.0f, 0.0f);
             }
 
@@ -520,7 +520,7 @@ class npc_scrapbot : public CreatureScript
             {
                 if (_rangeCheckTimer <= diff)
                 {
-                    if (Creature* xt002 = ObjectAccessor::GetCreature(*me, _instance->GetData64(BOSS_XT002)))
+                    if (Creature* xt002 = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(BOSS_XT002)))
                     {
                         if (me->IsWithinMeleeRange(xt002))
                         {
@@ -575,7 +575,7 @@ class npc_pummeller : public CreatureScript
             {
                 Initialize();
 
-                if (Creature* xt002 = ObjectAccessor::GetCreature(*me, _instance->GetData64(BOSS_XT002)))
+                if (Creature* xt002 = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(BOSS_XT002)))
                 {
                     Position pos = xt002->GetPosition();
                     me->GetMotionMaster()->MovePoint(0, pos);
@@ -689,7 +689,7 @@ class npc_boombot : public CreatureScript
                 me->SetFloatValue(UNIT_FIELD_MAXDAMAGE, 18000.0f);
 
                 /// @todo proper waypoints?
-                if (Creature* pXT002 = ObjectAccessor::GetCreature(*me, _instance->GetData64(BOSS_XT002)))
+                if (Creature* pXT002 = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(BOSS_XT002)))
                     me->GetMotionMaster()->MoveFollow(pXT002, 0.0f, 0.0f);
             }
 
@@ -939,7 +939,7 @@ class spell_xt002_heart_overload_periodic : public SpellScriptLoader
                 {
                     if (InstanceScript* instance = caster->GetInstanceScript())
                     {
-                        if (Unit* toyPile = ObjectAccessor::GetUnit(*caster, instance->GetData64(DATA_TOY_PILE_0 + urand(0, 3))))
+                        if (Unit* toyPile = ObjectAccessor::GetUnit(*caster, instance->GetGuidData(DATA_TOY_PILE_0 + urand(0, 3))))
                         {
                             caster->CastSpell(toyPile, SPELL_ENERGY_ORB, true);
 
@@ -952,7 +952,7 @@ class spell_xt002_heart_overload_periodic : public SpellScriptLoader
                             {
                                 uint8 a = urand(0, 4);
                                 uint32 spellId = spells[a];
-                                toyPile->CastSpell(toyPile, spellId, true, NULL, NULL, instance->GetData64(BOSS_XT002));
+                                toyPile->CastSpell(toyPile, spellId, true, NULL, NULL, instance->GetGuidData(BOSS_XT002));
                             }
                         }
                     }
diff --git a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_yogg_saron.cpp b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_yogg_saron.cpp
index d3012dc99ba..391aebf9229 100644
--- a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_yogg_saron.cpp
+++ b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_yogg_saron.cpp
@@ -451,7 +451,7 @@ class boss_voice_of_yogg_saron : public CreatureScript
                 BossAI::EnterEvadeMode();
 
                 for (uint8 i = DATA_SARA; i <= DATA_MIMIRON_YS; ++i)
-                    if (Creature* creature = ObjectAccessor::GetCreature(*me, instance->GetData64(i)))
+                    if (Creature* creature = ObjectAccessor::GetCreature(*me, instance->GetGuidData(i)))
                         creature->AI()->EnterEvadeMode();
 
                 // not sure, spoken by Sara (sound), regarding to wowwiki Voice whispers it
@@ -490,11 +490,11 @@ class boss_voice_of_yogg_saron : public CreatureScript
 
             void EnterCombat(Unit* /*who*/) override
             {
-                if (Creature* sara = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SARA)))
+                if (Creature* sara = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SARA)))
                     sara->SetInCombatWith(me);
 
                 for (uint8 i = DATA_FREYA_YS; i <= DATA_MIMIRON_YS; ++i)
-                    if (Creature* keeper = ObjectAccessor::GetCreature(*me, instance->GetData64(i)))
+                    if (Creature* keeper = ObjectAccessor::GetCreature(*me, instance->GetGuidData(i)))
                         keeper->SetInCombatWith(me);
 
                 instance->DoStartTimedAchievement(ACHIEVEMENT_TIMED_TYPE_EVENT, ACHIEV_TIMED_START_EVENT);
@@ -510,7 +510,7 @@ class boss_voice_of_yogg_saron : public CreatureScript
             void JustDied(Unit* killer) override
             {
                 // don't despawn Yogg-Saron's corpse, remove him from SummonList!
-                if (Creature* yogg = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_YOGG_SARON)))
+                if (Creature* yogg = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_YOGG_SARON)))
                     summons.Despawn(yogg);
 
                 BossAI::JustDied(killer);
@@ -535,7 +535,7 @@ class boss_voice_of_yogg_saron : public CreatureScript
                             instance->SetBossState(BOSS_YOGG_SARON, IN_PROGRESS);
                             break;
                         case EVENT_EXTINGUISH_ALL_LIFE:
-                            if (Creature* yogg = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_YOGG_SARON)))
+                            if (Creature* yogg = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_YOGG_SARON)))
                             {
                                 yogg->AI()->Talk(EMOTE_YOGG_SARON_EXTINGUISH_ALL_LIFE, me);
                                 yogg->CastSpell((Unit*)NULL, SPELL_EXTINGUISH_ALL_LIFE, true);
@@ -563,7 +563,7 @@ class boss_voice_of_yogg_saron : public CreatureScript
                             break;
                         case EVENT_ILLUSION:
                         {
-                            if (Creature* yogg = ObjectAccessor::GetCreature(*me, instance->GetData64(BOSS_YOGG_SARON)))
+                            if (Creature* yogg = ObjectAccessor::GetCreature(*me, instance->GetGuidData(BOSS_YOGG_SARON)))
                             {
                                 yogg->AI()->Talk(EMOTE_YOGG_SARON_MADNESS);
                                 yogg->AI()->Talk(SAY_YOGG_SARON_MADNESS);
@@ -576,7 +576,7 @@ class boss_voice_of_yogg_saron : public CreatureScript
                             uint8 illusion = urand(CHAMBER_ILLUSION, STORMWIND_ILLUSION);
                             instance->SetData(DATA_ILLUSION, illusion);
 
-                            if (Creature* brain = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_BRAIN_OF_YOGG_SARON)))
+                            if (Creature* brain = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_BRAIN_OF_YOGG_SARON)))
                                 brain->AI()->DoAction(ACTION_INDUCE_MADNESS);
                             events.ScheduleEvent(EVENT_ILLUSION, 80000, 0, PHASE_TWO);  // wowwiki says 80 secs, wowhead says something about 90 secs
                             break;
@@ -602,7 +602,7 @@ class boss_voice_of_yogg_saron : public CreatureScript
                     case ACTION_PHASE_TWO:
                         events.SetPhase(PHASE_TWO);
                         me->SummonCreature(NPC_YOGG_SARON, YoggSaronSpawnPos);
-                        if (Creature* brain = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_BRAIN_OF_YOGG_SARON)))
+                        if (Creature* brain = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_BRAIN_OF_YOGG_SARON)))
                             brain->SetInCombatWithZone();
                         events.ScheduleEvent(EVENT_SUMMON_CORRUPTOR_TENTACLE, 1, EVENT_GROUP_SUMMON_TENTACLES, PHASE_TWO);
                         events.ScheduleEvent(EVENT_SUMMON_CONSTRICTOR_TENTACLE, 1, EVENT_GROUP_SUMMON_TENTACLES, PHASE_TWO);
@@ -672,23 +672,23 @@ class boss_sara : public CreatureScript
         {
             boss_saraAI(Creature* creature) : ScriptedAI(creature), _instance(creature->GetInstanceScript()) { }
 
-            uint64 GetLinkedPlayerGUID(uint64 guid) const
+            ObjectGuid GetLinkedPlayerGUID(ObjectGuid guid) const
             {
-                std::map<uint64, uint64>::const_iterator itr = _linkData.find(guid);
+                std::map<ObjectGuid, ObjectGuid>::const_iterator itr = _linkData.find(guid);
                 if (itr != _linkData.end())
                     return itr->second;
 
-                return 0;
+                return ObjectGuid::Empty;
             }
 
-            void SetLinkBetween(uint64 player1, uint64 player2)
+            void SetLinkBetween(ObjectGuid player1, ObjectGuid player2)
             {
                 _linkData[player1] = player2;
                 _linkData[player2] = player1;
             }
 
             // called once for each target on aura remove
-            void RemoveLinkFrom(uint64 player1)
+            void RemoveLinkFrom(ObjectGuid player1)
             {
                 _linkData.erase(player1);
             }
@@ -699,7 +699,7 @@ class boss_sara : public CreatureScript
                 {
                     damage = 0;
 
-                    if (Creature* voice = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_VOICE_OF_YOGG_SARON)))
+                    if (Creature* voice = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_VOICE_OF_YOGG_SARON)))
                         voice->AI()->DoAction(ACTION_PHASE_TRANSFORM);
 
                     Talk(SAY_SARA_TRANSFORM_1);
@@ -794,14 +794,14 @@ class boss_sara : public CreatureScript
                             Talk(SAY_SARA_TRANSFORM_4);
                             DoCast(me, SPELL_FULL_HEAL);
                             me->setFaction(16);
-                            if (Creature* voice = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_VOICE_OF_YOGG_SARON)))
+                            if (Creature* voice = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_VOICE_OF_YOGG_SARON)))
                                 voice->AI()->DoAction(ACTION_PHASE_TWO);
-                            if (Creature* mimiron = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_MIMIRON_YS)))
+                            if (Creature* mimiron = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_MIMIRON_YS)))
                                 mimiron->AI()->DoAction(ACTION_PHASE_TWO);
                             break;
                         case EVENT_TRANSFORM_4:
                             DoCast(me, SPELL_PHASE_2_TRANSFORM);
-                            if (Creature* yogg = ObjectAccessor::GetCreature(*me, _instance->GetData64(BOSS_YOGG_SARON)))
+                            if (Creature* yogg = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(BOSS_YOGG_SARON)))
                                 DoCast(yogg, SPELL_RIDE_YOGG_SARON_VEHICLE);
                             DoCast(me, SPELL_SHADOWY_BARRIER_SARA);
                             _events.SetPhase(PHASE_TWO);
@@ -857,7 +857,7 @@ class boss_sara : public CreatureScript
                         break;
                 }
 
-                if (Creature* voice = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_VOICE_OF_YOGG_SARON)))
+                if (Creature* voice = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_VOICE_OF_YOGG_SARON)))
                     voice->AI()->JustSummoned(summon);
             }
 
@@ -876,7 +876,7 @@ class boss_sara : public CreatureScript
             private:
                 EventMap _events;
                 InstanceScript* _instance;
-                std::map<uint64, uint64> _linkData;
+                std::map<ObjectGuid, ObjectGuid> _linkData;
         };
 
         CreatureAI* GetAI(Creature* creature) const override
@@ -926,15 +926,15 @@ class boss_yogg_saron : public CreatureScript
             {
                 Talk(SAY_YOGG_SARON_DEATH);
 
-                if (Creature* creature = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_VOICE_OF_YOGG_SARON)))
+                if (Creature* creature = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_VOICE_OF_YOGG_SARON)))
                     me->Kill(creature);
 
                 for (uint8 i = DATA_SARA; i <= DATA_BRAIN_OF_YOGG_SARON; ++i)
-                    if (Creature* creature = ObjectAccessor::GetCreature(*me, _instance->GetData64(i)))
+                    if (Creature* creature = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(i)))
                         creature->DisappearAndDie();
 
                 for (uint8 i = DATA_FREYA_YS; i <= DATA_MIMIRON_YS; ++i)
-                    if (Creature* creature = ObjectAccessor::GetCreature(*me, _instance->GetData64(i)))
+                    if (Creature* creature = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(i)))
                         creature->AI()->EnterEvadeMode();
 
                 Map::PlayerList const& players = me->GetMap()->GetPlayers();
@@ -1043,15 +1043,15 @@ class boss_brain_of_yogg_saron : public CreatureScript
                     DoCast(me, SPELL_BRAIN_HURT_VISUAL, true);
                     me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_IMMUNE_TO_PC | UNIT_FLAG_NOT_SELECTABLE);
 
-                    if (Creature* voice = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_VOICE_OF_YOGG_SARON)))
+                    if (Creature* voice = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_VOICE_OF_YOGG_SARON)))
                         voice->AI()->DoAction(ACTION_PHASE_THREE);
-                    if (Creature* sara = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_SARA)))
+                    if (Creature* sara = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_SARA)))
                         sara->AI()->DoAction(ACTION_PHASE_THREE);
-                    if (Creature* yogg = ObjectAccessor::GetCreature(*me, _instance->GetData64(BOSS_YOGG_SARON)))
+                    if (Creature* yogg = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(BOSS_YOGG_SARON)))
                         yogg->AI()->DoAction(ACTION_PHASE_THREE);
 
                     for (uint8 i = DATA_THORIM_YS; i <= DATA_MIMIRON_YS; ++i)
-                        if (Creature* keeper = ObjectAccessor::GetCreature(*me, _instance->GetData64(i)))
+                        if (Creature* keeper = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(i)))
                             keeper->AI()->DoAction(ACTION_PHASE_THREE);
                 }
             }
@@ -1070,7 +1070,7 @@ class boss_brain_of_yogg_saron : public CreatureScript
 
                         // make sure doors won't be opened
                         for (uint32 i = GO_BRAIN_ROOM_DOOR_1; i <= GO_BRAIN_ROOM_DOOR_3; ++i)
-                            _instance->HandleGameObject(_instance->GetData64(i), false);
+                            _instance->HandleGameObject(_instance->GetGuidData(i), false);
 
                         DoCastAOE(SPELL_INDUCE_MADNESS);
                         break;
@@ -1083,9 +1083,9 @@ class boss_brain_of_yogg_saron : public CreatureScript
                             sCreatureTextMgr->SendChat(me, EMOTE_BRAIN_ILLUSION_SHATTERED, NULL, CHAT_MSG_ADDON, LANG_ADDON, TEXT_RANGE_AREA);
                             _summons.DespawnAll();
                             DoCastAOE(SPELL_SHATTERED_ILLUSION, true);
-                            _instance->HandleGameObject(_instance->GetData64(GO_BRAIN_ROOM_DOOR_1 + illusion), true);
+                            _instance->HandleGameObject(_instance->GetGuidData(GO_BRAIN_ROOM_DOOR_1 + illusion), true);
 
-                            if (Creature* voice = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_VOICE_OF_YOGG_SARON)))
+                            if (Creature* voice = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_VOICE_OF_YOGG_SARON)))
                                 voice->AI()->DoAction(ACTION_TOGGLE_SHATTERED_ILLUSION);
                         }
                         break;
@@ -1211,7 +1211,7 @@ class npc_guardian_of_yogg_saron : public CreatureScript
                     return;
 
                 // Guardian can be summoned both by Voice of Yogg-Saron and by Ominous Cloud
-                if (Creature* voice = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_VOICE_OF_YOGG_SARON)))
+                if (Creature* voice = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_VOICE_OF_YOGG_SARON)))
                     voice->AI()->JustSummoned(me);
             }
 
@@ -1314,7 +1314,7 @@ class npc_constrictor_tentacle : public CreatureScript
 
             void IsSummonedBy(Unit* /*summoner*/) override
             {
-                if (Creature* voice = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_VOICE_OF_YOGG_SARON)))
+                if (Creature* voice = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_VOICE_OF_YOGG_SARON)))
                     voice->AI()->JustSummoned(me);
             }
 
@@ -1405,7 +1405,7 @@ class npc_influence_tentacle : public CreatureScript
 
             void JustDied(Unit* /*killer*/) override
             {
-                if (Creature* brain = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_BRAIN_OF_YOGG_SARON)))
+                if (Creature* brain = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_BRAIN_OF_YOGG_SARON)))
                     brain->AI()->DoAction(ACTION_TENTACLE_KILLED);
             }
 
@@ -2791,7 +2791,7 @@ class spell_yogg_saron_induce_madness : public SpellScriptLoader    // 64059
                 if (Unit* target = GetHitUnit())
                 {
                     target->CastSpell(target, SPELL_TELEPORT_BACK_TO_MAIN_ROOM);
-                    target->RemoveAurasDueToSpell(SPELL_SANITY, 0, 0, AURA_REMOVE_BY_ENEMY_SPELL);
+                    target->RemoveAurasDueToSpell(SPELL_SANITY, ObjectGuid::Empty, 0, AURA_REMOVE_BY_ENEMY_SPELL);
                     target->RemoveAurasDueToSpell(uint32(GetEffectValue()));
                 }
             }
@@ -2801,7 +2801,7 @@ class spell_yogg_saron_induce_madness : public SpellScriptLoader    // 64059
                 GetCaster()->CastSpell((Unit*)NULL, SPELL_SHATTERED_ILLUSION_REMOVE);
 
                 if (InstanceScript* instance = GetCaster()->GetInstanceScript())
-                    if (Creature* voice = ObjectAccessor::GetCreature(*GetCaster(), instance->GetData64(DATA_VOICE_OF_YOGG_SARON)))
+                    if (Creature* voice = ObjectAccessor::GetCreature(*GetCaster(), instance->GetGuidData(DATA_VOICE_OF_YOGG_SARON)))
                         voice->AI()->DoAction(ACTION_TOGGLE_SHATTERED_ILLUSION);
             }
 
@@ -3081,7 +3081,7 @@ class spell_yogg_saron_in_the_maws_of_the_old_god : public SpellScriptLoader
             SpellCastResult CheckRequirement()
             {
                 if (InstanceScript* instance = GetCaster()->GetInstanceScript())
-                    if (Creature* yogg = ObjectAccessor::GetCreature(*GetCaster(), instance->GetData64(BOSS_YOGG_SARON)))
+                    if (Creature* yogg = ObjectAccessor::GetCreature(*GetCaster(), instance->GetGuidData(BOSS_YOGG_SARON)))
                         if (yogg->FindCurrentSpellBySpellId(SPELL_DEAFENING_ROAR))
                         {
                             if (GetCaster()->GetDistance(yogg) > 20.0f)
diff --git a/src/server/scripts/Northrend/Ulduar/Ulduar/instance_ulduar.cpp b/src/server/scripts/Northrend/Ulduar/Ulduar/instance_ulduar.cpp
index 56f5c19c574..016c0bff1e5 100644
--- a/src/server/scripts/Northrend/Ulduar/Ulduar/instance_ulduar.cpp
+++ b/src/server/scripts/Northrend/Ulduar/Ulduar/instance_ulduar.cpp
@@ -63,50 +63,50 @@ class instance_ulduar : public InstanceMapScript
             instance_ulduar_InstanceMapScript(InstanceMap* map) : InstanceScript(map) { }
 
             // Creatures
-            uint64 LeviathanGUID;
-            uint64 IgnisGUID;
-            uint64 RazorscaleGUID;
-            uint64 RazorscaleController;
-            uint64 ExpeditionCommanderGUID;
-            uint64 XT002GUID;
-            uint64 XTToyPileGUIDs[4];
-            uint64 AssemblyGUIDs[3];
-            uint64 KologarnGUID;
-            uint64 AuriayaGUID;
-            uint64 HodirGUID;
-            uint64 ThorimGUID;
-            uint64 FreyaGUID;
-            uint64 ElderGUIDs[3];
-            uint64 MimironGUID;
-            uint64 MimironVehicleGUIDs[3];
-            uint64 MimironComputerGUID;
-            uint64 MimironWorldTriggerGUID;
-            uint64 VezaxGUID;
-            uint64 YoggSaronGUID;
-            uint64 VoiceOfYoggSaronGUID;
-            uint64 SaraGUID;
-            uint64 BrainOfYoggSaronGUID;
-            uint64 KeeperGUIDs[4];
-            uint64 AlgalonGUID;
-            uint64 BrannBronzebeardAlgGUID;
+            ObjectGuid LeviathanGUID;
+            ObjectGuid IgnisGUID;
+            ObjectGuid RazorscaleGUID;
+            ObjectGuid RazorscaleController;
+            ObjectGuid ExpeditionCommanderGUID;
+            ObjectGuid XT002GUID;
+            ObjectGuid XTToyPileGUIDs[4];
+            ObjectGuid AssemblyGUIDs[3];
+            ObjectGuid KologarnGUID;
+            ObjectGuid AuriayaGUID;
+            ObjectGuid HodirGUID;
+            ObjectGuid ThorimGUID;
+            ObjectGuid FreyaGUID;
+            ObjectGuid ElderGUIDs[3];
+            ObjectGuid MimironGUID;
+            ObjectGuid MimironVehicleGUIDs[3];
+            ObjectGuid MimironComputerGUID;
+            ObjectGuid MimironWorldTriggerGUID;
+            ObjectGuid VezaxGUID;
+            ObjectGuid YoggSaronGUID;
+            ObjectGuid VoiceOfYoggSaronGUID;
+            ObjectGuid SaraGUID;
+            ObjectGuid BrainOfYoggSaronGUID;
+            ObjectGuid KeeperGUIDs[4];
+            ObjectGuid AlgalonGUID;
+            ObjectGuid BrannBronzebeardAlgGUID;
 
             // GameObjects
-            uint64 LeviathanGateGUID;
-            uint64 RazorHarpoonGUIDs[4];
-            uint64 KologarnChestGUID;
-            uint64 KologarnBridgeGUID;
-            uint64 ThorimChestGUID;
-            uint64 HodirRareCacheGUID;
-            uint64 HodirChestGUID;
-            uint64 MimironTramGUID;
-            uint64 MimironElevatorGUID;
-            uint64 MimironButtonGUID;
-            uint64 BrainRoomDoorGUIDs[3];
-            uint64 AlgalonSigilDoorGUID[3];
-            uint64 AlgalonFloorGUID[2];
-            uint64 AlgalonUniverseGUID;
-            uint64 AlgalonTrapdoorGUID;
-            uint64 GiftOfTheObserverGUID;
+            ObjectGuid LeviathanGateGUID;
+            ObjectGuid RazorHarpoonGUIDs[4];
+            ObjectGuid KologarnChestGUID;
+            ObjectGuid KologarnBridgeGUID;
+            ObjectGuid ThorimChestGUID;
+            ObjectGuid HodirRareCacheGUID;
+            ObjectGuid HodirChestGUID;
+            ObjectGuid MimironTramGUID;
+            ObjectGuid MimironElevatorGUID;
+            ObjectGuid MimironButtonGUID;
+            ObjectGuid BrainRoomDoorGUIDs[3];
+            ObjectGuid AlgalonSigilDoorGUID[3];
+            ObjectGuid AlgalonFloorGUID[2];
+            ObjectGuid AlgalonUniverseGUID;
+            ObjectGuid AlgalonTrapdoorGUID;
+            ObjectGuid GiftOfTheObserverGUID;
 
             // Miscellaneous
             uint32 TeamInInstance;
@@ -119,47 +119,12 @@ class instance_ulduar : public InstanceMapScript
             bool Unbroken;
             bool IsDriveMeCrazyEligible;
 
-            std::set<uint64> mRubbleSpawns;
-
             void Initialize() override
             {
                 SetHeaders(DataHeader);
                 SetBossNumber(MAX_ENCOUNTER);
                 LoadDoorData(doorData);
                 LoadMinionData(minionData);
-                LeviathanGUID                    = 0;
-                IgnisGUID                        = 0;
-                RazorscaleGUID                   = 0;
-                RazorscaleController             = 0;
-                ExpeditionCommanderGUID          = 0;
-                XT002GUID                        = 0;
-                KologarnGUID                     = 0;
-                AuriayaGUID                      = 0;
-                MimironGUID                      = 0;
-                MimironComputerGUID              = 0;
-                MimironWorldTriggerGUID          = 0;
-                HodirGUID                        = 0;
-                ThorimGUID                       = 0;
-                FreyaGUID                        = 0;
-                VezaxGUID                        = 0;
-                YoggSaronGUID                    = 0;
-                VoiceOfYoggSaronGUID             = 0;
-                SaraGUID                         = 0;
-                BrainOfYoggSaronGUID             = 0;
-                AlgalonGUID                      = 0;
-                KologarnChestGUID                = 0;
-                KologarnBridgeGUID               = 0;
-                ThorimChestGUID                  = 0;
-                HodirRareCacheGUID               = 0;
-                HodirChestGUID                   = 0;
-                MimironTramGUID                  = 0;
-                MimironElevatorGUID              = 0;
-                MimironButtonGUID                = 0;
-                LeviathanGateGUID                = 0;
-                AlgalonUniverseGUID              = 0;
-                AlgalonTrapdoorGUID              = 0;
-                BrannBronzebeardAlgGUID          = 0;
-                GiftOfTheObserverGUID            = 0;
                 _algalonTimer                    = 61;
                 _maxArmorItemLevel               = 0;
                 _maxWeaponItemLevel              = 0;
@@ -175,17 +140,8 @@ class instance_ulduar : public InstanceMapScript
                 _algalonSummoned                 = false;
                 _summonAlgalon                   = false;
 
-                memset(AlgalonSigilDoorGUID, 0, sizeof(AlgalonSigilDoorGUID));
-                memset(AlgalonFloorGUID, 0, sizeof(AlgalonFloorGUID));
-                memset(XTToyPileGUIDs, 0, sizeof(XTToyPileGUIDs));
-                memset(AssemblyGUIDs, 0, sizeof(AssemblyGUIDs));
-                memset(RazorHarpoonGUIDs, 0, sizeof(RazorHarpoonGUIDs));
-                memset(ElderGUIDs, 0, sizeof(ElderGUIDs));
-                memset(MimironVehicleGUIDs, 0, sizeof(MimironVehicleGUIDs));
-                memset(BrainRoomDoorGUIDs, 0, sizeof(BrainRoomDoorGUIDs));
-                memset(KeeperGUIDs, 0, sizeof(KeeperGUIDs));
-                memset(_summonObservationRingKeeper, false, sizeof(_summonObservationRingKeeper));
-                memset(_summonYSKeeper, false, sizeof(_summonYSKeeper));
+                memset(_summonObservationRingKeeper, 0, sizeof(_summonObservationRingKeeper));
+                memset(_summonYSKeeper, 0, sizeof(_summonYSKeeper));
             }
 
             void FillInitialWorldStates(WorldPacket& packet) override
@@ -460,7 +416,7 @@ class instance_ulduar : public InstanceMapScript
                         for (uint8 i = 0; i < 4; ++i)
                             if (XTToyPileGUIDs[i] == creature->GetGUID())
                             {
-                                XTToyPileGUIDs[i] = 0;
+                                XTToyPileGUIDs[i].Clear();
                                 break;
                             }
                         break;
@@ -471,7 +427,7 @@ class instance_ulduar : public InstanceMapScript
                         break;
                     case NPC_BRANN_BRONZBEARD_ALG:
                         if (BrannBronzebeardAlgGUID == creature->GetGUID())
-                            BrannBronzebeardAlgGUID = 0;
+                            BrannBronzebeardAlgGUID.Clear();
                         break;
                     default:
                         break;
@@ -489,7 +445,7 @@ class instance_ulduar : public InstanceMapScript
                     case GO_KOLOGARN_BRIDGE:
                         KologarnBridgeGUID = gameObject->GetGUID();
                         if (GetBossState(BOSS_KOLOGARN) == DONE)
-                            HandleGameObject(0, false, gameObject);
+                            HandleGameObject(ObjectGuid::Empty, false, gameObject);
                         break;
                     case GO_THORIM_CHEST_HERO:
                     case GO_THORIM_CHEST:
@@ -844,11 +800,11 @@ class instance_ulduar : public InstanceMapScript
                 }
             }
 
-            void SetData64(uint32 /*type*/, uint64 /*data*/) override
+            void SetGuidData(uint32 /*type*/, ObjectGuid /*data*/) override
             {
             }
 
-            uint64 GetData64(uint32 data) const override
+            ObjectGuid GetGuidData(uint32 data) const override
             {
                 switch (data)
                 {
@@ -975,7 +931,7 @@ class instance_ulduar : public InstanceMapScript
                         return BrannBronzebeardAlgGUID;
                 }
 
-                return 0;
+                return ObjectGuid::Empty;
             }
 
             uint32 GetData(uint32 type) const override
diff --git a/src/server/scripts/Northrend/UtgardeKeep/UtgardeKeep/boss_ingvar_the_plunderer.cpp b/src/server/scripts/Northrend/UtgardeKeep/UtgardeKeep/boss_ingvar_the_plunderer.cpp
index ee52df58c80..c08e1934552 100644
--- a/src/server/scripts/Northrend/UtgardeKeep/UtgardeKeep/boss_ingvar_the_plunderer.cpp
+++ b/src/server/scripts/Northrend/UtgardeKeep/UtgardeKeep/boss_ingvar_the_plunderer.cpp
@@ -287,7 +287,7 @@ class npc_annhylde_the_caller : public CreatureScript
                 {
                     case 1:
                         Talk(YELL_RESURRECT);
-                        if (Creature* ingvar = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_INGVAR)))
+                        if (Creature* ingvar = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_INGVAR)))
                         {
                             ingvar->RemoveAura(SPELL_SUMMON_BANSHEE);
                             ingvar->CastSpell(ingvar, SPELL_SCOURG_RESURRECTION_DUMMY, true);
@@ -316,7 +316,7 @@ class npc_annhylde_the_caller : public CreatureScript
                     switch (eventId)
                     {
                         case EVENT_RESURRECT_1:
-                            if (Creature* ingvar = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_INGVAR)))
+                            if (Creature* ingvar = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_INGVAR)))
                             {
                                 ingvar->RemoveAura(SPELL_INGVAR_FEIGN_DEATH);
                                 ingvar->CastSpell(ingvar, SPELL_SCOURG_RESURRECTION_HEAL, false);
@@ -324,7 +324,7 @@ class npc_annhylde_the_caller : public CreatureScript
                             _events.ScheduleEvent(EVENT_RESURRECT_2, 3000);
                             break;
                         case EVENT_RESURRECT_2:
-                            if (Creature* ingvar = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_INGVAR)))
+                            if (Creature* ingvar = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_INGVAR)))
                             {
                                 ingvar->RemoveAurasDueToSpell(SPELL_SCOURG_RESURRECTION_DUMMY);
                                 ingvar->AI()->DoAction(ACTION_START_PHASE_2);
diff --git a/src/server/scripts/Northrend/UtgardeKeep/UtgardeKeep/boss_keleseth.cpp b/src/server/scripts/Northrend/UtgardeKeep/UtgardeKeep/boss_keleseth.cpp
index ecc6de96daa..adb544cb25e 100644
--- a/src/server/scripts/Northrend/UtgardeKeep/UtgardeKeep/boss_keleseth.cpp
+++ b/src/server/scripts/Northrend/UtgardeKeep/UtgardeKeep/boss_keleseth.cpp
@@ -94,7 +94,7 @@ class npc_frost_tomb : public CreatureScript
 
             void JustDied(Unit* /*killer*/) override
             {
-                if (Creature* keleseth = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_PRINCE_KELESETH)))
+                if (Creature* keleseth = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_PRINCE_KELESETH)))
                     keleseth->AI()->SetData(DATA_ON_THE_ROCKS, false);
             }
 
diff --git a/src/server/scripts/Northrend/UtgardeKeep/UtgardeKeep/boss_skarvald_dalronn.cpp b/src/server/scripts/Northrend/UtgardeKeep/UtgardeKeep/boss_skarvald_dalronn.cpp
index c6a91e3ff33..bf11e3cca7b 100644
--- a/src/server/scripts/Northrend/UtgardeKeep/UtgardeKeep/boss_skarvald_dalronn.cpp
+++ b/src/server/scripts/Northrend/UtgardeKeep/UtgardeKeep/boss_skarvald_dalronn.cpp
@@ -116,7 +116,7 @@ struct generic_boss_controllerAI : public BossAI
 
     void JustDied(Unit* /*killer*/) override
     {
-        if (Creature* otherBoss = ObjectAccessor::GetCreature(*me, instance->GetData64(OtherBossData)))
+        if (Creature* otherBoss = ObjectAccessor::GetCreature(*me, instance->GetGuidData(OtherBossData)))
         {
             if (otherBoss->IsAlive())
             {
diff --git a/src/server/scripts/Northrend/UtgardeKeep/UtgardeKeep/instance_utgarde_keep.cpp b/src/server/scripts/Northrend/UtgardeKeep/UtgardeKeep/instance_utgarde_keep.cpp
index 78df568d144..360befc02af 100644
--- a/src/server/scripts/Northrend/UtgardeKeep/UtgardeKeep/instance_utgarde_keep.cpp
+++ b/src/server/scripts/Northrend/UtgardeKeep/UtgardeKeep/instance_utgarde_keep.cpp
@@ -45,11 +45,6 @@ class instance_utgarde_keep : public InstanceMapScript
                 SetBossNumber(EncounterCount);
                 LoadDoorData(doorData);
                 LoadMinionData(minionData);
-
-                PrinceKelesethGUID  = 0;
-                SkarvaldGUID        = 0;
-                DalronnGUID         = 0;
-                IngvarGUID          = 0;
             }
 
             void OnCreatureCreate(Creature* creature) override
@@ -94,39 +89,39 @@ class instance_utgarde_keep : public InstanceMapScript
                 {
                     case GO_BELLOW_1:
                         Forges[0].BellowGUID = go->GetGUID();
-                        HandleGameObject(0, Forges[0].Event != NOT_STARTED, go);
+                        HandleGameObject(ObjectGuid::Empty, Forges[0].Event != NOT_STARTED, go);
                         break;
                     case GO_BELLOW_2:
                         Forges[1].BellowGUID = go->GetGUID();
-                        HandleGameObject(0, Forges[1].Event != NOT_STARTED, go);
+                        HandleGameObject(ObjectGuid::Empty, Forges[1].Event != NOT_STARTED, go);
                         break;
                     case GO_BELLOW_3:
                         Forges[2].BellowGUID = go->GetGUID();
-                        HandleGameObject(0, Forges[2].Event != NOT_STARTED, go);
+                        HandleGameObject(ObjectGuid::Empty, Forges[2].Event != NOT_STARTED, go);
                         break;
                     case GO_FORGEFIRE_1:
                         Forges[0].FireGUID = go->GetGUID();
-                        HandleGameObject(0, Forges[0].Event != NOT_STARTED, go);
+                        HandleGameObject(ObjectGuid::Empty, Forges[0].Event != NOT_STARTED, go);
                         break;
                     case GO_FORGEFIRE_2:
                         Forges[1].FireGUID = go->GetGUID();
-                        HandleGameObject(0, Forges[1].Event != NOT_STARTED, go);
+                        HandleGameObject(ObjectGuid::Empty, Forges[1].Event != NOT_STARTED, go);
                         break;
                     case GO_FORGEFIRE_3:
                         Forges[2].FireGUID = go->GetGUID();
-                        HandleGameObject(0, Forges[2].Event != NOT_STARTED, go);
+                        HandleGameObject(ObjectGuid::Empty, Forges[2].Event != NOT_STARTED, go);
                         break;
                     case GO_GLOWING_ANVIL_1:
                         Forges[0].AnvilGUID = go->GetGUID();
-                        HandleGameObject(0, Forges[0].Event != NOT_STARTED, go);
+                        HandleGameObject(ObjectGuid::Empty, Forges[0].Event != NOT_STARTED, go);
                         break;
                     case GO_GLOWING_ANVIL_2:
                         Forges[1].AnvilGUID = go->GetGUID();
-                        HandleGameObject(0, Forges[1].Event != NOT_STARTED, go);
+                        HandleGameObject(ObjectGuid::Empty, Forges[1].Event != NOT_STARTED, go);
                         break;
                     case GO_GLOWING_ANVIL_3:
                         Forges[2].AnvilGUID = go->GetGUID();
-                        HandleGameObject(0, Forges[2].Event != NOT_STARTED, go);
+                        HandleGameObject(ObjectGuid::Empty, Forges[2].Event != NOT_STARTED, go);
                         break;
                     case GO_GIANT_PORTCULLIS_1:
                     case GO_GIANT_PORTCULLIS_2:
@@ -150,7 +145,7 @@ class instance_utgarde_keep : public InstanceMapScript
                 }
             }
 
-            uint64 GetData64(uint32 type) const override
+            ObjectGuid GetGuidData(uint32 type) const override
             {
                 switch (type)
                 {
@@ -166,7 +161,7 @@ class instance_utgarde_keep : public InstanceMapScript
                         break;
                 }
 
-                return 0;
+                return ObjectGuid::Empty;
             }
 
             void SetData(uint32 type, uint32 data) override
@@ -207,10 +202,10 @@ class instance_utgarde_keep : public InstanceMapScript
         protected:
             ForgeInfo Forges[3];
 
-            uint64 PrinceKelesethGUID;
-            uint64 SkarvaldGUID;
-            uint64 DalronnGUID;
-            uint64 IngvarGUID;
+            ObjectGuid PrinceKelesethGUID;
+            ObjectGuid SkarvaldGUID;
+            ObjectGuid DalronnGUID;
+            ObjectGuid IngvarGUID;
         };
 
         InstanceScript* GetInstanceScript(InstanceMap* map) const override
diff --git a/src/server/scripts/Northrend/UtgardeKeep/UtgardeKeep/utgarde_keep.h b/src/server/scripts/Northrend/UtgardeKeep/UtgardeKeep/utgarde_keep.h
index 751239755cf..5b52072b07f 100644
--- a/src/server/scripts/Northrend/UtgardeKeep/UtgardeKeep/utgarde_keep.h
+++ b/src/server/scripts/Northrend/UtgardeKeep/UtgardeKeep/utgarde_keep.h
@@ -76,11 +76,11 @@ enum GameObjectIds
 
 struct ForgeInfo
 {
-    ForgeInfo() : AnvilGUID(0), BellowGUID(0), FireGUID(0), Event(NOT_STARTED) { };
+    ForgeInfo() : Event(NOT_STARTED) { };
 
-    uint64 AnvilGUID;
-    uint64 BellowGUID;
-    uint64 FireGUID;
+    ObjectGuid AnvilGUID;
+    ObjectGuid BellowGUID;
+    ObjectGuid FireGUID;
 
     uint32 Event;
 };
diff --git a/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_palehoof.cpp b/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_palehoof.cpp
index b3285bd492e..061499f2025 100644
--- a/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_palehoof.cpp
+++ b/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_palehoof.cpp
@@ -129,11 +129,11 @@ public:
             me->GetMotionMaster()->MoveTargetedHome();
 
             for (uint8 i = DATA_FRENZIED_WORGEN; i <= DATA_FEROCIOUS_RHINO; ++i)
-                if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetData64(i)))
+                if (Creature* temp = ObjectAccessor::GetCreature(*me, instance->GetGuidData(i)))
                     if (!temp->IsAlive())
                         temp->Respawn();
 
-            if (GameObject* go = ObjectAccessor::GetGameObject(*me, instance->GetData64(DATA_GORTOK_PALEHOOF_SPHERE)))
+            if (GameObject* go = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_GORTOK_PALEHOOF_SPHERE)))
             {
                 go->SetGoState(GO_STATE_READY);
                 go->RemoveFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
@@ -224,7 +224,7 @@ public:
                 move = Sequence[AddCount++];
 
             // send orb to summon spot
-            if (Creature* orb = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_GORTOK_ORB)))
+            if (Creature* orb = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_GORTOK_ORB)))
                 if (orb->IsAlive())
                     orb->GetMotionMaster()->MovePoint(move, moveLocs[move]);
 
@@ -293,7 +293,7 @@ public:
 
             if (instance->GetBossState(DATA_GORTOK_PALEHOOF) == IN_PROGRESS)
             {
-                Creature* palehoof = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_GORTOK_PALEHOOF));
+                Creature* palehoof = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_GORTOK_PALEHOOF));
                 if (palehoof && palehoof->IsAlive())
                     palehoof->AI()->Reset();
             }
@@ -345,7 +345,7 @@ public:
 
         void JustDied(Unit* /*killer*/) override
         {
-            if (Creature* palehoof = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_GORTOK_PALEHOOF)))
+            if (Creature* palehoof = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_GORTOK_PALEHOOF)))
                 palehoof->AI()->DoAction(ACTION_NEXT_PHASE);
         }
 
@@ -407,7 +407,7 @@ public:
 
             if (instance->GetBossState(DATA_GORTOK_PALEHOOF) == IN_PROGRESS)
             {
-                Creature* palehoof = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_GORTOK_PALEHOOF));
+                Creature* palehoof = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_GORTOK_PALEHOOF));
                 if (palehoof && palehoof->IsAlive())
                     palehoof->AI()->Reset();
             }
@@ -460,7 +460,7 @@ public:
 
         void JustDied(Unit* /*killer*/) override
         {
-            if (Creature* palehoof = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_GORTOK_PALEHOOF)))
+            if (Creature* palehoof = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_GORTOK_PALEHOOF)))
                 palehoof->AI()->DoAction(ACTION_NEXT_PHASE);
         }
 
@@ -523,7 +523,7 @@ public:
 
             if (instance->GetBossState(DATA_GORTOK_PALEHOOF) == IN_PROGRESS)
             {
-                Creature* palehoof = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_GORTOK_PALEHOOF));
+                Creature* palehoof = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_GORTOK_PALEHOOF));
                 if (palehoof && palehoof->IsAlive())
                     palehoof->AI()->Reset();
             }
@@ -576,7 +576,7 @@ public:
 
         void JustDied(Unit* /*killer*/) override
         {
-            if (Creature* palehoof = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_GORTOK_PALEHOOF)))
+            if (Creature* palehoof = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_GORTOK_PALEHOOF)))
                 palehoof->AI()->DoAction(ACTION_NEXT_PHASE);
         }
 
@@ -644,7 +644,7 @@ public:
 
             if (instance->GetBossState(DATA_GORTOK_PALEHOOF) == IN_PROGRESS)
             {
-                Creature* palehoof = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_GORTOK_PALEHOOF));
+                Creature* palehoof = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_GORTOK_PALEHOOF));
                 if (palehoof && palehoof->IsAlive())
                     palehoof->AI()->Reset();
             }
@@ -698,7 +698,7 @@ public:
 
         void JustDied(Unit* /*killer*/) override
         {
-            if (Creature* palehoof = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_GORTOK_PALEHOOF)))
+            if (Creature* palehoof = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_GORTOK_PALEHOOF)))
                 palehoof->AI()->DoAction(ACTION_NEXT_PHASE);
         }
 
@@ -778,7 +778,7 @@ public:
                         return;
                 }
 
-                if (Creature* nextBoss = ObjectAccessor::GetCreature(*me, instance->GetData64(nextBossId)))
+                if (Creature* nextBoss = ObjectAccessor::GetCreature(*me, instance->GetGuidData(nextBossId)))
                 {
                     nextBoss->RemoveAurasDueToSpell(SPELL_FREEZE);
                     nextBoss->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE | UNIT_FLAG_NON_ATTACKABLE | UNIT_FLAG_NOT_ATTACKABLE_1 | UNIT_FLAG_IMMUNE_TO_PC);
@@ -822,7 +822,7 @@ public:
                     return;
             }
 
-            if (Creature* nextBoss = ObjectAccessor::GetCreature(*me, instance->GetData64(nextBossId)))
+            if (Creature* nextBoss = ObjectAccessor::GetCreature(*me, instance->GetGuidData(nextBossId)))
                 DoCast(nextBoss, SPELL_ORB_CHANNEL, false);
 
             currentPhase = Phase(id);
@@ -843,7 +843,7 @@ class go_palehoof_sphere : public GameObjectScript
             if (!instance)
                 return false;
 
-            Creature* palehoof = ObjectAccessor::GetCreature(*go, instance->GetData64(DATA_GORTOK_PALEHOOF));
+            Creature* palehoof = ObjectAccessor::GetCreature(*go, instance->GetGuidData(DATA_GORTOK_PALEHOOF));
             if (palehoof && palehoof->IsAlive())
             {
                 go->SetFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
diff --git a/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_skadi.cpp b/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_skadi.cpp
index af5dc4a4e03..5d6a2416d73 100644
--- a/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_skadi.cpp
+++ b/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_skadi.cpp
@@ -171,7 +171,6 @@ public:
         {
             Initialize();
             instance = creature->GetInstanceScript();
-            m_uiGraufGUID = 0;
             m_uiMovementTimer = 0;
             m_uiSummonTimer = 0;
         }
@@ -191,8 +190,7 @@ public:
 
         InstanceScript* instance;
         SummonList Summons;
-        uint64 m_uiGraufGUID;
-        std::vector<uint64> triggersGUID;
+        ObjectGuid m_uiGraufGUID;
 
         uint32 m_uiCrushTimer;
         uint32 m_uiPoisonedSpearTimer;
@@ -208,8 +206,6 @@ public:
 
         void Reset() override
         {
-            triggersGUID.clear();
-
             Initialize();
 
             Summons.DespawnAll();
@@ -274,7 +270,7 @@ public:
         void SummonedCreatureDespawn(Creature* summoned) override
         {
             if (summoned->GetEntry() == NPC_GRAUF)
-                m_uiGraufGUID = 0;
+                m_uiGraufGUID.Clear();
             Summons.Despawn(summoned);
         }
 
@@ -477,7 +473,7 @@ public:
         if (!instance)
             return false;
 
-        if (Creature* pSkadi = ObjectAccessor::GetCreature(*go, instance->GetData64(DATA_SKADI_THE_RUTHLESS)))
+        if (Creature* pSkadi = ObjectAccessor::GetCreature(*go, instance->GetGuidData(DATA_SKADI_THE_RUTHLESS)))
             player->CastSpell(pSkadi, SPELL_RAPID_FIRE, true);
 
         return false;
diff --git a/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_svala.cpp b/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_svala.cpp
index a31aff259d1..bf9d9eaa43b 100644
--- a/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_svala.cpp
+++ b/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_svala.cpp
@@ -143,7 +143,7 @@ class boss_svala : public CreatureScript
 
             void Initialize()
             {
-                _arthasGUID = 0;
+                _arthasGUID.Clear();
                 _sacrificed = false;
             }
 
@@ -162,7 +162,7 @@ class boss_svala : public CreatureScript
 
                 Initialize();
 
-                instance->SetData64(DATA_SACRIFICED_PLAYER, 0);
+                instance->SetGuidData(DATA_SACRIFICED_PLAYER, ObjectGuid::Empty);
             }
 
             void EnterCombat(Unit* /*who*/) override
@@ -188,7 +188,7 @@ class boss_svala : public CreatureScript
                     events.SetPhase(INTRO);
                     me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
 
-                    if (GameObject* mirror = ObjectAccessor::GetGameObject(*me, DATA_UTGARDE_MIRROR))
+                    if (GameObject* mirror = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_UTGARDE_MIRROR)))
                         mirror->SetGoState(GO_STATE_READY);
 
                     if (Creature* arthas = me->SummonCreature(NPC_ARTHAS, ArthasPos, TEMPSUMMON_MANUAL_DESPAWN))
@@ -331,12 +331,12 @@ class boss_svala : public CreatureScript
                             break;
                         }
                         case EVENT_INTRO_DESPAWN_ARTHAS:
-                            if (GameObject* mirror = ObjectAccessor::GetGameObject(*me, DATA_UTGARDE_MIRROR))
+                            if (GameObject* mirror = ObjectAccessor::GetGameObject(*me, instance->GetGuidData(DATA_UTGARDE_MIRROR)))
                                 mirror->SetGoState(GO_STATE_ACTIVE);
                             me->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
                             if (Creature* arthas = ObjectAccessor::GetCreature(*me, _arthasGUID))
                                 arthas->DespawnOrUnsummon();
-                            _arthasGUID = 0;
+                            _arthasGUID.Clear();
                             events.SetPhase(NORMAL);
                             _introCompleted = true;
                             events.ScheduleEvent(EVENT_SINISTER_STRIKE, 7 * IN_MILLISECONDS, 0, NORMAL);
@@ -354,7 +354,7 @@ class boss_svala : public CreatureScript
                         case EVENT_RITUAL_PREPARATION:
                             if (Unit* sacrificeTarget = SelectTarget(SELECT_TARGET_RANDOM, 0, 80.0f, true))
                             {
-                                instance->SetData64(DATA_SACRIFICED_PLAYER, sacrificeTarget->GetGUID());
+                                instance->SetGuidData(DATA_SACRIFICED_PLAYER, sacrificeTarget->GetGUID());
                                 Talk(SAY_SACRIFICE_PLAYER);
                                 DoCast(sacrificeTarget, SPELL_RITUAL_PREPARATION);
                                 SetCombatMovement(false);
@@ -385,7 +385,7 @@ class boss_svala : public CreatureScript
             }
 
         private:
-            uint64 _arthasGUID;
+            ObjectGuid _arthasGUID;
             bool _sacrificed;
             bool _introCompleted;
         };
@@ -434,7 +434,7 @@ class npc_ritual_channeler : public CreatureScript
 
                 if (paralyzeTimer <= diff)
                 {
-                    if (Unit* victim = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_SACRIFICED_PLAYER)))
+                    if (Unit* victim = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_SACRIFICED_PLAYER)))
                         DoCast(victim, SPELL_PARALYZE, false);
 
                     paralyzeTimer = 200;
@@ -487,7 +487,7 @@ class RitualTargetCheck
         bool operator() (WorldObject* obj) const
         {
             if (InstanceScript* instance = obj->GetInstanceScript())
-                if (instance->GetData64(DATA_SACRIFICED_PLAYER) == obj->GetGUID())
+                if (instance->GetGuidData(DATA_SACRIFICED_PLAYER) == obj->GetGUID())
                     return false;
 
             return true;
diff --git a/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_ymiron.cpp b/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_ymiron.cpp
index 1d3fcba09de..c4312e08704 100644
--- a/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_ymiron.cpp
+++ b/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_ymiron.cpp
@@ -124,8 +124,8 @@ public:
             ActivedNumber = 0;
             HealthAmountModifier = 1;
             HealthAmountMultipler = DUNGEON_MODE(20, 25);
-            ActiveAncestorGUID = 0;
-            SpiritFountGUID = 0;
+            ActiveAncestorGUID.Clear();
+            SpiritFountGUID.Clear();
         }
 
         void Reset() override
@@ -283,14 +283,14 @@ public:
                 Talk(SAY_SLAY);
         }
 
-        void DespawnBoatGhosts(uint64& CreatureGUID)
+        void DespawnBoatGhosts(ObjectGuid& CreatureGUID)
         {
             // @todo: fire visual after ancestor despawns.
             if (CreatureGUID)
                 if (Creature* temp = ObjectAccessor::GetCreature(*me, CreatureGUID))
                     temp->DisappearAndDie();
 
-            CreatureGUID = 0;
+            CreatureGUID.Clear();
         }
 
     private:
@@ -299,8 +299,8 @@ public:
         uint8 ActivedNumber;
         uint32 HealthAmountModifier;
         uint32 HealthAmountMultipler;
-        uint64 ActiveAncestorGUID;
-        uint64 SpiritFountGUID;
+        ObjectGuid ActiveAncestorGUID;
+        ObjectGuid SpiritFountGUID;
     };
 
     CreatureAI* GetAI(Creature* creature) const override
diff --git a/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/instance_utgarde_pinnacle.cpp b/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/instance_utgarde_pinnacle.cpp
index 1bc3f20c3fe..519cc3b7202 100644
--- a/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/instance_utgarde_pinnacle.cpp
+++ b/src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/instance_utgarde_pinnacle.cpp
@@ -38,23 +38,6 @@ class instance_utgarde_pinnacle : public InstanceMapScript
                 SetHeaders(DataHeader);
                 SetBossNumber(EncounterCount);
                 LoadDoorData(doorData);
-
-                SvalaSorrowgraveGUID        = 0;
-                GortokPalehoofGUID          = 0;
-                SkadiTheRuthlessGUID        = 0;
-                KingYmironGUID              = 0;
-
-                UtgardeMirrorGUID           = 0;
-                GortokPalehoofSphereGUID    = 0;
-
-                FrenziedWorgenGUID          = 0;
-                RavenousFurbolgGUID         = 0;
-                FerociousRhinoGUID          = 0;
-                MassiveJormungarGUID        = 0;
-                PalehoofOrbGUID             = 0;
-
-                SvalaGUID                   = 0;
-                SacrificedPlayerGUID        = 0;
             }
 
             void OnCreatureCreate(Creature* creature) override
@@ -107,7 +90,7 @@ class instance_utgarde_pinnacle : public InstanceMapScript
                         GortokPalehoofSphereGUID = go->GetGUID();
                         if (GetBossState(DATA_GORTOK_PALEHOOF) == DONE)
                         {
-                            HandleGameObject(0, true, go);
+                            HandleGameObject(ObjectGuid::Empty, true, go);
                             go->SetFlag(GAMEOBJECT_FLAGS, GO_FLAG_NOT_SELECTABLE);
                         }
                         break;
@@ -133,7 +116,7 @@ class instance_utgarde_pinnacle : public InstanceMapScript
                 }
             }
 
-            void SetData64(uint32 type, uint64 data) override
+            void SetGuidData(uint32 type, ObjectGuid data) override
             {
                 switch (type)
                 {
@@ -145,7 +128,7 @@ class instance_utgarde_pinnacle : public InstanceMapScript
                 }
             }
 
-            uint64 GetData64(uint32 type) const override
+            ObjectGuid GetGuidData(uint32 type) const override
             {
                 switch (type)
                 {
@@ -179,27 +162,27 @@ class instance_utgarde_pinnacle : public InstanceMapScript
                         break;
                 }
 
-                return 0;
+                return ObjectGuid::Empty;
             }
 
         protected:
-            uint64 SvalaSorrowgraveGUID;
-            uint64 GortokPalehoofGUID;
-            uint64 SkadiTheRuthlessGUID;
-            uint64 KingYmironGUID;
+            ObjectGuid SvalaSorrowgraveGUID;
+            ObjectGuid GortokPalehoofGUID;
+            ObjectGuid SkadiTheRuthlessGUID;
+            ObjectGuid KingYmironGUID;
 
-            uint64 UtgardeMirrorGUID;
-            uint64 GortokPalehoofSphereGUID;
+            ObjectGuid UtgardeMirrorGUID;
+            ObjectGuid GortokPalehoofSphereGUID;
 
-            uint64 FrenziedWorgenGUID;
-            uint64 RavenousFurbolgGUID;
-            uint64 FerociousRhinoGUID;
-            uint64 MassiveJormungarGUID;
+            ObjectGuid FrenziedWorgenGUID;
+            ObjectGuid RavenousFurbolgGUID;
+            ObjectGuid FerociousRhinoGUID;
+            ObjectGuid MassiveJormungarGUID;
 
-            uint64 PalehoofOrbGUID;
+            ObjectGuid PalehoofOrbGUID;
 
-            uint64 SvalaGUID;
-            uint64 SacrificedPlayerGUID;
+            ObjectGuid SvalaGUID;
+            ObjectGuid SacrificedPlayerGUID;
         };
 
         InstanceScript* GetInstanceScript(InstanceMap* map) const override
diff --git a/src/server/scripts/Northrend/VaultOfArchavon/boss_emalon.cpp b/src/server/scripts/Northrend/VaultOfArchavon/boss_emalon.cpp
index 8a88abb9d06..bacb63b73bc 100644
--- a/src/server/scripts/Northrend/VaultOfArchavon/boss_emalon.cpp
+++ b/src/server/scripts/Northrend/VaultOfArchavon/boss_emalon.cpp
@@ -101,7 +101,7 @@ class boss_emalon : public CreatureScript
             {
                 if (!summons.empty())
                 {
-                    for (std::list<uint64>::const_iterator itr = summons.begin(); itr != summons.end(); ++itr)
+                    for (SummonList::const_iterator itr = summons.begin(); itr != summons.end(); ++itr)
                     {
                         Creature* minion = ObjectAccessor::GetCreature(*me, *itr);
                         if (minion && minion->IsAlive() && !minion->GetVictim() && minion->AI())
@@ -201,7 +201,7 @@ class npc_tempest_minion : public CreatureScript
 
             void JustDied(Unit* /*killer*/) override
             {
-                if (Creature* emalon = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_EMALON)))
+                if (Creature* emalon = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_EMALON)))
                 {
                     if (emalon->IsAlive())
                     {
@@ -216,7 +216,7 @@ class npc_tempest_minion : public CreatureScript
                 DoZoneInCombat();
                 events.ScheduleEvent(EVENT_SHOCK, 20000);
 
-                if (Creature* pEmalon = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_EMALON)))
+                if (Creature* pEmalon = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_EMALON)))
                 {
                     if (!pEmalon->GetVictim() && pEmalon->AI())
                         pEmalon->AI()->AttackStart(who);
diff --git a/src/server/scripts/Northrend/VaultOfArchavon/boss_toravon.cpp b/src/server/scripts/Northrend/VaultOfArchavon/boss_toravon.cpp
index 36c952d14a1..a7895b8d506 100644
--- a/src/server/scripts/Northrend/VaultOfArchavon/boss_toravon.cpp
+++ b/src/server/scripts/Northrend/VaultOfArchavon/boss_toravon.cpp
@@ -262,7 +262,7 @@ class npc_frozen_orb_stalker : public CreatureScript
                     return;
 
                 spawned = true;
-                Unit* toravon = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_TORAVON));
+                Unit* toravon = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_TORAVON));
                 if (!toravon)
                     return;
 
diff --git a/src/server/scripts/Northrend/VaultOfArchavon/instance_vault_of_archavon.cpp b/src/server/scripts/Northrend/VaultOfArchavon/instance_vault_of_archavon.cpp
index 959c8b7724d..846ecc1226a 100644
--- a/src/server/scripts/Northrend/VaultOfArchavon/instance_vault_of_archavon.cpp
+++ b/src/server/scripts/Northrend/VaultOfArchavon/instance_vault_of_archavon.cpp
@@ -38,8 +38,6 @@ class instance_vault_of_archavon : public InstanceMapScript
                 SetHeaders(DataHeader);
                 SetBossNumber(EncounterCount);
 
-                EmalonGUID      = 0;
-                ToravonGUID     = 0;
                 ArchavonDeath   = 0;
                 EmalonDeath     = 0;
                 KoralonDeath    = 0;
@@ -60,7 +58,7 @@ class instance_vault_of_archavon : public InstanceMapScript
                 }
             }
 
-            uint64 GetData64(uint32 identifier) const override
+            ObjectGuid GetGuidData(uint32 identifier) const override
             {
                 switch (identifier)
                 {
@@ -72,7 +70,7 @@ class instance_vault_of_archavon : public InstanceMapScript
                         break;
                 }
 
-                return 0;
+                return ObjectGuid::Empty;
             }
 
             bool SetBossState(uint32 type, EncounterState state) override
@@ -127,8 +125,8 @@ class instance_vault_of_archavon : public InstanceMapScript
             }
 
         private:
-            uint64 EmalonGUID;
-            uint64 ToravonGUID;
+            ObjectGuid EmalonGUID;
+            ObjectGuid ToravonGUID;
             time_t ArchavonDeath;
             time_t EmalonDeath;
             time_t KoralonDeath;
diff --git a/src/server/scripts/Northrend/VioletHold/boss_erekem.cpp b/src/server/scripts/Northrend/VioletHold/boss_erekem.cpp
index 6cc90bcd4ed..bbb8c758bb1 100644
--- a/src/server/scripts/Northrend/VioletHold/boss_erekem.cpp
+++ b/src/server/scripts/Northrend/VioletHold/boss_erekem.cpp
@@ -85,12 +85,12 @@ public:
             else if (instance->GetData(DATA_WAVE_COUNT) == 12)
                 instance->SetData(DATA_2ND_BOSS_EVENT, NOT_STARTED);
 
-            if (Creature* pGuard1 = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_EREKEM_GUARD_1)))
+            if (Creature* pGuard1 = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_EREKEM_GUARD_1)))
             {
                 if (!pGuard1->IsAlive())
                     pGuard1->Respawn();
             }
-            if (Creature* pGuard2 = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_EREKEM_GUARD_2)))
+            if (Creature* pGuard2 = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_EREKEM_GUARD_2)))
             {
                 if (!pGuard2->IsAlive())
                     pGuard2->Respawn();
@@ -109,13 +109,13 @@ public:
                 who->SetInCombatWith(me);
                 DoStartMovement(who);
 
-                if (Creature* pGuard1 = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_EREKEM_GUARD_1)))
+                if (Creature* pGuard1 = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_EREKEM_GUARD_1)))
                 {
                     pGuard1->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_IMMUNE_TO_PC | UNIT_FLAG_NON_ATTACKABLE);
                     if (!pGuard1->GetVictim() && pGuard1->AI())
                         pGuard1->AI()->AttackStart(who);
                 }
-                if (Creature* pGuard2 = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_EREKEM_GUARD_2)))
+                if (Creature* pGuard2 = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_EREKEM_GUARD_2)))
                 {
                     pGuard2->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_IMMUNE_TO_PC | UNIT_FLAG_NON_ATTACKABLE);
                     if (!pGuard2->GetVictim() && pGuard2->AI())
@@ -129,7 +129,7 @@ public:
             Talk(SAY_AGGRO);
             DoCast(me, SPELL_EARTH_SHIELD);
 
-            if (GameObject* pDoor = instance->instance->GetGameObject(instance->GetData64(DATA_EREKEM_CELL)))
+            if (GameObject* pDoor = instance->instance->GetGameObject(instance->GetGuidData(DATA_EREKEM_CELL)))
                 if (pDoor->GetGoState() == GO_STATE_READY)
                 {
                     EnterEvadeMode();
@@ -154,9 +154,9 @@ public:
             //spam stormstrike in hc mode if spawns are dead
             if (IsHeroic())
             {
-                if (Creature* pGuard1 = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_EREKEM_GUARD_1)))
+                if (Creature* pGuard1 = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_EREKEM_GUARD_1)))
                 {
-                    if (Creature* pGuard2 = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_EREKEM_GUARD_2)))
+                    if (Creature* pGuard2 = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_EREKEM_GUARD_2)))
                     {
                         if (!pGuard1->IsAlive() && !pGuard2->IsAlive())
                             DoCastVictim(SPELL_STORMSTRIKE);
@@ -172,14 +172,14 @@ public:
 
             if (uiChainHealTimer <= diff)
             {
-                if (uint64 TargetGUID = GetChainHealTargetGUID())
+                if (ObjectGuid TargetGUID = GetChainHealTargetGUID())
                 {
                     if (Creature* target = ObjectAccessor::GetCreature(*me, TargetGUID))
                         DoCast(target, SPELL_CHAIN_HEAL);
 
                     //If one of the adds is dead spawn heals faster
-                    Creature* pGuard1 = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_EREKEM_GUARD_1));
-                    Creature* pGuard2 = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_EREKEM_GUARD_2));
+                    Creature* pGuard1 = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_EREKEM_GUARD_1));
+                    Creature* pGuard2 = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_EREKEM_GUARD_2));
                     uiChainHealTimer = ((pGuard1 && !pGuard1->IsAlive()) || (pGuard2 && !pGuard2->IsAlive()) ? 3000 : 8000) + rand32() % 3000;
                 }
             } else uiChainHealTimer -= diff;
@@ -230,20 +230,20 @@ public:
             Talk(SAY_SLAY);
         }
 
-        uint64 GetChainHealTargetGUID()
+        ObjectGuid GetChainHealTargetGUID()
         {
             if (HealthBelowPct(85))
                 return me->GetGUID();
 
-            Creature* pGuard1 = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_EREKEM_GUARD_1));
+            Creature* pGuard1 = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_EREKEM_GUARD_1));
             if (pGuard1 && pGuard1->IsAlive() && !pGuard1->HealthAbovePct(75))
                 return pGuard1->GetGUID();
 
-            Creature* pGuard2 = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_EREKEM_GUARD_2));
+            Creature* pGuard2 = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_EREKEM_GUARD_2));
             if (pGuard2 && pGuard2->IsAlive() && !pGuard2->HealthAbovePct(75))
                 return pGuard2->GetGUID();
 
-            return 0;
+            return ObjectGuid::Empty;
         }
     };
 
diff --git a/src/server/scripts/Northrend/VioletHold/boss_ichoron.cpp b/src/server/scripts/Northrend/VioletHold/boss_ichoron.cpp
index ba72f6f52ca..50a65920876 100644
--- a/src/server/scripts/Northrend/VioletHold/boss_ichoron.cpp
+++ b/src/server/scripts/Northrend/VioletHold/boss_ichoron.cpp
@@ -128,7 +128,7 @@ public:
 
             DoCast(me, SPELL_PROTECTIVE_BUBBLE);
 
-            if (GameObject* pDoor = instance->instance->GetGameObject(instance->GetData64(DATA_ICHORON_CELL)))
+            if (GameObject* pDoor = instance->instance->GetGameObject(instance->GetGuidData(DATA_ICHORON_CELL)))
                 if (pDoor->GetGoState() == GO_STATE_READY)
                 {
                     EnterEvadeMode();
@@ -227,7 +227,7 @@ public:
                 {
                     if (!bIsExploded)
                     {
-                        if (!me->HasAura(SPELL_PROTECTIVE_BUBBLE, 0))
+                        if (!me->HasAura(SPELL_PROTECTIVE_BUBBLE))
                         {
                             Talk(SAY_SHATTER);
                             DoCast(me, SPELL_WATER_BLAST);
@@ -247,7 +247,7 @@ public:
                         bool bIsWaterElementsAlive = false;
                         if (!m_waterElements.empty())
                         {
-                            for (std::list<uint64>::const_iterator itr = m_waterElements.begin(); itr != m_waterElements.end(); ++itr)
+                            for (SummonList::const_iterator itr = m_waterElements.begin(); itr != m_waterElements.end(); ++itr)
                                 if (Creature* temp = ObjectAccessor::GetCreature(*me, *itr))
                                     if (temp->IsAlive())
                                     {
@@ -308,7 +308,7 @@ public:
                 summoned->SetSpeed(MOVE_RUN, 0.3f);
                 summoned->GetMotionMaster()->MoveFollow(me, 0, 0);
                 m_waterElements.Summon(summoned);
-                instance->SetData64(DATA_ADD_TRASH_MOB, summoned->GetGUID());
+                instance->SetGuidData(DATA_ADD_TRASH_MOB, summoned->GetGUID());
             }
         }
 
@@ -317,7 +317,7 @@ public:
             if (summoned)
             {
                 m_waterElements.Despawn(summoned);
-                instance->SetData64(DATA_DEL_TRASH_MOB, summoned->GetGUID());
+                instance->SetGuidData(DATA_DEL_TRASH_MOB, summoned->GetGUID());
             }
         }
 
@@ -374,7 +374,7 @@ public:
         {
             if (uiRangeCheck_Timer < uiDiff)
             {
-                if (Creature* pIchoron = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_ICHORON)))
+                if (Creature* pIchoron = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_ICHORON)))
                 {
                     if (me->IsWithinDist(pIchoron, 2.0f, false))
                     {
@@ -391,7 +391,7 @@ public:
         void JustDied(Unit* /*killer*/) override
         {
             DoCast(me, SPELL_SPLASH);
-            if (Creature* pIchoron = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_ICHORON)))
+            if (Creature* pIchoron = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_ICHORON)))
                 if (pIchoron->AI())
                     pIchoron->AI()->DoAction(ACTION_WATER_ELEMENT_KILLED);
         }
diff --git a/src/server/scripts/Northrend/VioletHold/boss_lavanthor.cpp b/src/server/scripts/Northrend/VioletHold/boss_lavanthor.cpp
index 3a08a4510ca..5d8756bcffc 100644
--- a/src/server/scripts/Northrend/VioletHold/boss_lavanthor.cpp
+++ b/src/server/scripts/Northrend/VioletHold/boss_lavanthor.cpp
@@ -68,7 +68,7 @@ public:
 
         void EnterCombat(Unit* /*who*/) override
         {
-            if (GameObject* pDoor = instance->instance->GetGameObject(instance->GetData64(DATA_LAVANTHOR_CELL)))
+            if (GameObject* pDoor = instance->instance->GetGameObject(instance->GetGuidData(DATA_LAVANTHOR_CELL)))
                     if (pDoor->GetGoState() == GO_STATE_READY)
                     {
                         EnterEvadeMode();
diff --git a/src/server/scripts/Northrend/VioletHold/boss_moragg.cpp b/src/server/scripts/Northrend/VioletHold/boss_moragg.cpp
index 12ace1b1c38..67d71cad24c 100644
--- a/src/server/scripts/Northrend/VioletHold/boss_moragg.cpp
+++ b/src/server/scripts/Northrend/VioletHold/boss_moragg.cpp
@@ -61,7 +61,7 @@ public:
 
         void EnterCombat(Unit* /*who*/) override
         {
-            if (GameObject* pDoor = instance->instance->GetGameObject(instance->GetData64(DATA_MORAGG_CELL)))
+            if (GameObject* pDoor = instance->instance->GetGameObject(instance->GetGuidData(DATA_MORAGG_CELL)))
                 if (pDoor->GetGoState() == GO_STATE_READY)
                 {
                     EnterEvadeMode();
diff --git a/src/server/scripts/Northrend/VioletHold/boss_xevozz.cpp b/src/server/scripts/Northrend/VioletHold/boss_xevozz.cpp
index 734c20000eb..79c535979d7 100644
--- a/src/server/scripts/Northrend/VioletHold/boss_xevozz.cpp
+++ b/src/server/scripts/Northrend/VioletHold/boss_xevozz.cpp
@@ -134,7 +134,7 @@ public:
         void EnterCombat(Unit* /*who*/) override
         {
             Talk(SAY_AGGRO);
-            if (GameObject* pDoor = instance->instance->GetGameObject(instance->GetData64(DATA_XEVOZZ_CELL)))
+            if (GameObject* pDoor = instance->instance->GetGameObject(instance->GetGuidData(DATA_XEVOZZ_CELL)))
                 if (pDoor->GetGoState() == GO_STATE_READY)
                 {
                     EnterEvadeMode();
@@ -254,7 +254,7 @@ public:
 
             if (uiRangeCheck_Timer < uiDiff)
             {
-                if (Creature* pXevozz = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_XEVOZZ)))
+                if (Creature* pXevozz = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_XEVOZZ)))
                 {
                     float fDistance = me->GetDistance2d(pXevozz);
                     if (fDistance <= 3)
diff --git a/src/server/scripts/Northrend/VioletHold/boss_zuramat.cpp b/src/server/scripts/Northrend/VioletHold/boss_zuramat.cpp
index 753d4ebea01..d24d005926c 100644
--- a/src/server/scripts/Northrend/VioletHold/boss_zuramat.cpp
+++ b/src/server/scripts/Northrend/VioletHold/boss_zuramat.cpp
@@ -105,7 +105,7 @@ public:
         void EnterCombat(Unit* /*who*/) override
         {
             Talk(SAY_AGGRO);
-            if (GameObject* pDoor = instance->instance->GetGameObject(instance->GetData64(DATA_ZURAMAT_CELL)))
+            if (GameObject* pDoor = instance->instance->GetGameObject(instance->GetGuidData(DATA_ZURAMAT_CELL)))
                 if (pDoor->GetGoState() == GO_STATE_READY)
                 {
                     EnterEvadeMode();
diff --git a/src/server/scripts/Northrend/VioletHold/instance_violet_hold.cpp b/src/server/scripts/Northrend/VioletHold/instance_violet_hold.cpp
index 9c81e664fd4..cddf6ce3c25 100644
--- a/src/server/scripts/Northrend/VioletHold/instance_violet_hold.cpp
+++ b/src/server/scripts/Northrend/VioletHold/instance_violet_hold.cpp
@@ -114,35 +114,35 @@ public:
     {
         instance_violet_hold_InstanceMapScript(Map* map) : InstanceScript(map) { }
 
-        uint64 uiMoragg;
-        uint64 uiErekem;
-        uint64 uiErekemGuard[2];
-        uint64 uiIchoron;
-        uint64 uiLavanthor;
-        uint64 uiXevozz;
-        uint64 uiZuramat;
-        uint64 uiCyanigosa;
-        uint64 uiSinclari;
-
-        uint64 uiMoraggCell;
-        uint64 uiErekemCell;
-        uint64 uiErekemLeftGuardCell;
-        uint64 uiErekemRightGuardCell;
-        uint64 uiIchoronCell;
-        uint64 uiLavanthorCell;
-        uint64 uiXevozzCell;
-        uint64 uiZuramatCell;
-        uint64 uiMainDoor;
-        uint64 uiTeleportationPortal;
-        uint64 uiSaboteurPortal;
-
-        uint64 uiActivationCrystal[4];
+        ObjectGuid uiMoragg;
+        ObjectGuid uiErekem;
+        ObjectGuid uiErekemGuard[2];
+        ObjectGuid uiIchoron;
+        ObjectGuid uiLavanthor;
+        ObjectGuid uiXevozz;
+        ObjectGuid uiZuramat;
+        ObjectGuid uiCyanigosa;
+        ObjectGuid uiSinclari;
+
+        ObjectGuid uiMoraggCell;
+        ObjectGuid uiErekemCell;
+        ObjectGuid uiErekemLeftGuardCell;
+        ObjectGuid uiErekemRightGuardCell;
+        ObjectGuid uiIchoronCell;
+        ObjectGuid uiLavanthorCell;
+        ObjectGuid uiXevozzCell;
+        ObjectGuid uiZuramatCell;
+        ObjectGuid uiMainDoor;
+        ObjectGuid uiTeleportationPortal;
+        ObjectGuid uiSaboteurPortal;
+
+        ObjectGuid uiActivationCrystal[4];
 
         uint32 uiActivationTimer;
         uint32 uiCyanigosaEventTimer;
         uint32 uiDoorSpellTimer;
 
-        std::set<uint64> trashMobs; // to kill with crystal
+        GuidSet trashMobs; // to kill with crystal
 
         uint8 uiWaveCount;
         uint8 uiLocation;
@@ -171,28 +171,6 @@ public:
         void Initialize() override
         {
             SetHeaders(DataHeader);
-            uiMoragg = 0;
-            uiErekem = 0;
-            uiIchoron = 0;
-            uiLavanthor = 0;
-            uiXevozz = 0;
-            uiZuramat = 0;
-            uiCyanigosa = 0;
-            uiSinclari = 0;
-
-            uiMoraggCell = 0;
-            uiErekemCell = 0;
-            uiErekemGuard[0] = 0;
-            uiErekemGuard[1] = 0;
-            uiIchoronCell = 0;
-            uiLavanthorCell = 0;
-            uiXevozzCell = 0;
-            uiZuramatCell = 0;
-            uiMainDoor = 0;
-            uiTeleportationPortal = 0;
-            uiSaboteurPortal = 0;
-
-            trashMobs.clear();
 
             uiRemoveNpc = 0;
 
@@ -266,11 +244,14 @@ public:
                     break;
             }
 
+            /*
+            BEWARE - SHIT.
             if (creature->GetGUID() == uiFirstBoss || creature->GetGUID() == uiSecondBoss)
             {
                 creature->AllLootRemovedFromCorpse();
                 creature->RemoveLootMode(1);
             }
+            */
         }
 
         void OnGameObjectCreate(GameObject* go) override
@@ -407,7 +388,7 @@ public:
             }
         }
 
-        void SetData64(uint32 type, uint64 data) override
+        void SetGuidData(uint32 type, ObjectGuid data) override
         {
             switch (type)
             {
@@ -441,7 +422,7 @@ public:
             return 0;
         }
 
-        uint64 GetData64(uint32 identifier) const override
+        ObjectGuid GetGuidData(uint32 identifier) const override
         {
             switch (identifier)
             {
@@ -468,7 +449,7 @@ public:
                 case DATA_SABOTEUR_PORTAL:          return uiSaboteurPortal;
             }
 
-            return 0;
+            return ObjectGuid::Empty;
         }
 
         void SpawnPortal()
@@ -813,8 +794,8 @@ public:
             // visuals
             trigger->CastSpell(trigger, spellInfoLightning, true, 0, 0, trigger->GetGUID());
 
-            // Kill all mobs registered with SetData64(ADD_TRASH_MOB)
-            for (std::set<uint64>::const_iterator itr = trashMobs.begin(); itr != trashMobs.end(); ++itr)
+            // Kill all mobs registered with SetGuidData(ADD_TRASH_MOB)
+            for (GuidSet::const_iterator itr = trashMobs.begin(); itr != trashMobs.end(); ++itr)
             {
                 Creature* creature = instance->GetCreature(*itr);
                 if (creature && creature->IsAlive())
diff --git a/src/server/scripts/Northrend/VioletHold/violet_hold.cpp b/src/server/scripts/Northrend/VioletHold/violet_hold.cpp
index 1c106f399de..76a7b701717 100644
--- a/src/server/scripts/Northrend/VioletHold/violet_hold.cpp
+++ b/src/server/scripts/Northrend/VioletHold/violet_hold.cpp
@@ -526,7 +526,7 @@ public:
         {
             me->CastSpell(me, SABOTEUR_SHIELD_DISRUPTION, false);
             me->DisappearAndDie();
-            Creature* pSaboPort = ObjectAccessor::GetCreature((*me), instance->GetData64(DATA_SABOTEUR_PORTAL));
+            Creature* pSaboPort = ObjectAccessor::GetCreature((*me), instance->GetGuidData(DATA_SABOTEUR_PORTAL));
             if (pSaboPort)
                 pSaboPort->DisappearAndDie();
             instance->SetData(DATA_START_BOSS_ENCOUNTER, 1);
@@ -653,13 +653,13 @@ public:
         void JustSummoned(Creature* summoned) override
         {
             listOfMobs.Summon(summoned);
-            instance->SetData64(DATA_ADD_TRASH_MOB, summoned->GetGUID());
+            instance->SetGuidData(DATA_ADD_TRASH_MOB, summoned->GetGUID());
         }
 
         void SummonedCreatureDies(Creature* summoned, Unit* /*killer*/) override
         {
             listOfMobs.Despawn(summoned);
-            instance->SetData64(DATA_DEL_TRASH_MOB, summoned->GetGUID());
+            instance->SetGuidData(DATA_DEL_TRASH_MOB, summoned->GetGUID());
         }
     };
 
diff --git a/src/server/scripts/Northrend/zone_borean_tundra.cpp b/src/server/scripts/Northrend/zone_borean_tundra.cpp
index a83f4feb70a..1aad8079e07 100644
--- a/src/server/scripts/Northrend/zone_borean_tundra.cpp
+++ b/src/server/scripts/Northrend/zone_borean_tundra.cpp
@@ -71,13 +71,13 @@ public:
 
         uint32 phaseTimer;
         uint8  phase;
-        uint64 casterGuid;
+        ObjectGuid casterGuid;
 
         void Reset() override
         {
             phaseTimer = 500;
             phase = 0;
-            casterGuid = 0;
+            casterGuid.Clear();
         }
 
         void SpellHit(Unit* caster, const SpellInfo* spell) override
@@ -391,7 +391,7 @@ public:
                 if (uiRand < 25)
                 {
                     player->CastSpell(me, SPELL_FREED_WARSONG_PEON, true);
-                    player->KilledMonsterCredit(NPC_WARSONG_PEON, 0);
+                    player->KilledMonsterCredit(NPC_WARSONG_PEON);
                 }
                 else if (uiRand < 75)
                     player->CastSpell(me, nerubarVictims[urand(0, 2)], true);
@@ -449,7 +449,7 @@ public:
     {
         npc_nesingwary_trapperAI(Creature* creature) : ScriptedAI(creature) { creature->SetVisible(false); }
 
-        uint64 go_caribouGUID;
+        ObjectGuid go_caribouGUID;
         uint8  phase;
         uint32 phaseTimer;
 
@@ -458,7 +458,7 @@ public:
             me->SetVisible(false);
             phaseTimer = 2500;
             phase = 1;
-            go_caribouGUID = 0;
+            go_caribouGUID.Clear();
         }
 
         void EnterCombat(Unit* /*who*/) override { }
@@ -474,7 +474,7 @@ public:
                 if (summon->IsSummon())
                     if (Unit* temp = summon->GetSummoner())
                         if (Player* player = temp->ToPlayer())
-                            player->KilledMonsterCredit(me->GetEntry(), 0);
+                            player->KilledMonsterCredit(me->GetEntry());
 
             if (GameObject* go_caribou = me->GetMap()->GetGameObject(go_caribouGUID))
                 go_caribou->SetGoState(GO_STATE_READY);
@@ -723,10 +723,9 @@ public:
     {
         npc_nexus_drake_hatchlingAI(Creature* creature) : FollowerAI(creature)
         {
-            HarpoonerGUID = 0;
         }
 
-        uint64 HarpoonerGUID;
+        ObjectGuid HarpoonerGUID;
         bool WithRedDragonBlood;
 
         void Reset() override
@@ -764,10 +763,10 @@ public:
                 {
                     if (Player* pHarpooner = ObjectAccessor::GetPlayer(*me, HarpoonerGUID))
                     {
-                        pHarpooner->KilledMonsterCredit(26175, 0);
+                        pHarpooner->KilledMonsterCredit(26175);
                         pHarpooner->RemoveAura(SPELL_DRAKE_HATCHLING_SUBDUED);
                         SetFollowComplete();
-                        HarpoonerGUID = 0;
+                        HarpoonerGUID.Clear();
                         me->DisappearAndDie();
                     }
                 }
@@ -793,7 +792,7 @@ public:
 
             if ((me->getFaction() == 35) && (!me->HasAura(SPELL_SUBDUED)))
             {
-                HarpoonerGUID = 0;
+                HarpoonerGUID.Clear();
                 me->DisappearAndDie();
             }
 
@@ -865,10 +864,10 @@ public:
     {
         npc_thassarianAI(Creature* creature) : npc_escortAI(creature) { }
 
-        uint64 arthasGUID;
-        uint64 talbotGUID;
-        uint64 leryssaGUID;
-        uint64 arlosGUID;
+        ObjectGuid arthasGUID;
+        ObjectGuid talbotGUID;
+        ObjectGuid leryssaGUID;
+        ObjectGuid arlosGUID;
 
         bool arthasInPosition;
         bool arlosInPosition;
@@ -883,10 +882,10 @@ public:
             me->RestoreFaction();
             me->RemoveStandFlags(UNIT_STAND_STATE_SIT);
 
-            arthasGUID = 0;
-            talbotGUID = 0;
-            leryssaGUID = 0;
-            arlosGUID = 0;
+            arthasGUID.Clear();
+            talbotGUID.Clear();
+            leryssaGUID.Clear();
+            arlosGUID.Clear();
 
             arthasInPosition = false;
             arlosInPosition = false;
@@ -1242,8 +1241,8 @@ public:
     {
         npc_counselor_talbotAI(Creature* creature) : ScriptedAI(creature) { }
 
-        uint64 leryssaGUID;
-        uint64 arlosGUID;
+        ObjectGuid leryssaGUID;
+        ObjectGuid arlosGUID;
 
         bool bCheck;
 
@@ -1253,8 +1252,8 @@ public:
 
         void Reset() override
         {
-            leryssaGUID         = 0;
-            arlosGUID           = 0;
+            leryssaGUID.Clear();
+            arlosGUID.Clear();
             bCheck              = false;
             shadowBoltTimer   = urand(5000, 12000);
             deflectionTimer   = urand(20000, 25000);
@@ -1609,15 +1608,11 @@ public:
         void SpellHit(Unit* unit, const SpellInfo* spell) override
         {
             if (spell->Id == SPELL_NEURAL_NEEDLE && unit->GetTypeId() == TYPEID_PLAYER)
-            {
                 if (Player* player = unit->ToPlayer())
-                {
                     GotStinged(player->GetGUID());
-                }
-            }
         }
 
-        void GotStinged(uint64 casterGUID)
+        void GotStinged(ObjectGuid casterGUID)
         {
             if (Player* caster = ObjectAccessor::GetPlayer(*me, casterGUID))
             {
@@ -1644,7 +1639,7 @@ public:
                         break;
                     case 7:
                         Talk(SAY_IMPRISIONED_BERYL_7);
-                        caster->KilledMonsterCredit(NPC_IMPRISONED_BERYL_SORCERER, 0);
+                        caster->KilledMonsterCredit(NPC_IMPRISONED_BERYL_SORCERER);
                         break;
                 }
             }
@@ -1980,7 +1975,7 @@ public:
             {
                 Quest const* qInfo = sObjectMgr->GetQuestTemplate(QUEST_YOU_RE_NOT_SO_BIG_NOW);
                 if (qInfo)
-                    player->KilledMonsterCredit(qInfo->RequiredNpcOrGo[0], 0);
+                    player->KilledMonsterCredit(qInfo->RequiredNpcOrGo[0]);
             }
         }
     };
@@ -2195,7 +2190,7 @@ public:
         uint32 uiEventTimer;
         uint8 uiEventPhase;
 
-        uint64 uiPlayerGUID;
+        ObjectGuid uiPlayerGUID;
 
         void Reset() override
         {
@@ -2208,7 +2203,7 @@ public:
             uiEventTimer = 0;
             uiEventPhase = 0;
 
-            uiPlayerGUID = 0;
+            uiPlayerGUID.Clear();
 
             DoCast(SPELL_SHROUD_OF_THE_DEATH_CULTIST);
 
@@ -2225,7 +2220,7 @@ public:
             uiEventPhase = 1;
         }
 
-        void SetGUID(uint64 uiGuid, int32 /*iId*/) override
+        void SetGUID(ObjectGuid uiGuid, int32 /*iId*/) override
         {
             uiPlayerGUID = uiGuid;
         }
diff --git a/src/server/scripts/Northrend/zone_crystalsong_forest.cpp b/src/server/scripts/Northrend/zone_crystalsong_forest.cpp
index 7d680ecd071..9cad60f8766 100644
--- a/src/server/scripts/Northrend/zone_crystalsong_forest.cpp
+++ b/src/server/scripts/Northrend/zone_crystalsong_forest.cpp
@@ -56,11 +56,11 @@ public:
             SetCombatMovement(false);
         }
 
-        uint64 targetGUID;
+        ObjectGuid targetGUID;
 
         void Reset() override
         {
-            targetGUID = 0;
+            targetGUID.Clear();
         }
 
         void UpdateAI(uint32 /*diff*/) override
diff --git a/src/server/scripts/Northrend/zone_dragonblight.cpp b/src/server/scripts/Northrend/zone_dragonblight.cpp
index 80e496a6e13..68c0ce3acc4 100644
--- a/src/server/scripts/Northrend/zone_dragonblight.cpp
+++ b/src/server/scripts/Northrend/zone_dragonblight.cpp
@@ -158,8 +158,12 @@ class npc_commander_eligor_dawnbringer : public CreatureScript
             void Reset() override
             {
                 talkWing = 0;
-                memset(audienceList, 0, sizeof(audienceList));
-                memset(imageList, 0, sizeof(imageList));
+                for (ObjectGuid& guid : audienceList)
+                    guid.Clear();
+
+                for (ObjectGuid& guid : imageList)
+                    guid.Clear();
+
                 _events.ScheduleEvent(EVENT_GET_TARGETS, 5000);
                 _events.ScheduleEvent(EVENT_START_RANDOM, 20000);
             }
@@ -351,8 +355,8 @@ class npc_commander_eligor_dawnbringer : public CreatureScript
             }
             private:
                 EventMap _events;
-                uint64   audienceList[10];
-                uint64   imageList[5];
+                ObjectGuid audienceList[10];
+                ObjectGuid imageList[5];
                 uint8    talkWing;
         };
 
@@ -652,13 +656,12 @@ class npc_torturer_lecraft : public CreatureScript
             npc_torturer_lecraftAI(Creature* creature) : ScriptedAI(creature)
             {
                 _textCounter = 1;
-                _playerGUID = 0;
             }
 
             void Reset() override
             {
                 _textCounter = 1;
-                _playerGUID  = 0;
+                _playerGUID.Clear();
             }
 
             void EnterCombat(Unit* who) override
@@ -686,7 +689,7 @@ class npc_torturer_lecraft : public CreatureScript
                     Talk(_textCounter, player);
 
                     if (_textCounter == 5)
-                        player->KilledMonsterCredit(NPC_TORTURER_LECRAFT, 0);
+                        player->KilledMonsterCredit(NPC_TORTURER_LECRAFT);
 
                     ++_textCounter;
 
@@ -723,7 +726,7 @@ class npc_torturer_lecraft : public CreatureScript
             private:
                 EventMap _events;
                 uint8    _textCounter;
-                uint64   _playerGUID;
+                ObjectGuid _playerGUID;
         };
 
         CreatureAI* GetAI(Creature* creature) const
diff --git a/src/server/scripts/Northrend/zone_grizzly_hills.cpp b/src/server/scripts/Northrend/zone_grizzly_hills.cpp
index 6d41a2e9b21..e06bf32d7d8 100644
--- a/src/server/scripts/Northrend/zone_grizzly_hills.cpp
+++ b/src/server/scripts/Northrend/zone_grizzly_hills.cpp
@@ -116,7 +116,7 @@ public:
                 case 19:
                     if (Creature* Mrfloppy = ObjectAccessor::GetCreature(*me, _mrfloppyGUID))
                     {
-                        if (Mrfloppy->HasAura(SPELL_MRFLOPPY, 0))
+                        if (Mrfloppy->HasAura(SPELL_MRFLOPPY))
                         {
                             if (Creature* RWORG = ObjectAccessor::GetCreature(*me, _RavenousworgGUID))
                                 Mrfloppy->EnterVehicle(RWORG);
@@ -180,13 +180,13 @@ public:
 
         void Reset() override
         {
-            _mrfloppyGUID     = 0;
-            _RavenousworgGUID = 0;
+            _mrfloppyGUID.Clear();
+            _RavenousworgGUID.Clear();
         }
 
         private:
-            uint64   _RavenousworgGUID;
-            uint64   _mrfloppyGUID;
+            ObjectGuid   _RavenousworgGUID;
+            ObjectGuid   _mrfloppyGUID;
     };
 
     bool OnQuestAccept(Player* player, Creature* creature, Quest const* quest) override
@@ -542,7 +542,7 @@ public:
 
         void Reset() override
         {
-            _playerGUID   = 0;
+            _playerGUID.Clear();
 
             me->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE | UNIT_FLAG_IMMUNE_TO_PC);
             me->SetReactState(REACT_AGGRESSIVE);
@@ -604,7 +604,7 @@ public:
 
         private:
             EventMap _events;
-            uint64 _playerGUID;
+            ObjectGuid _playerGUID;
         };
 
         CreatureAI* GetAI(Creature* creature) const override
diff --git a/src/server/scripts/Northrend/zone_howling_fjord.cpp b/src/server/scripts/Northrend/zone_howling_fjord.cpp
index 96fdcbfe990..53dc2a62f90 100644
--- a/src/server/scripts/Northrend/zone_howling_fjord.cpp
+++ b/src/server/scripts/Northrend/zone_howling_fjord.cpp
@@ -179,7 +179,7 @@ public:
 
         void Reset() override
         {
-            uint64 summonerGUID = 0;
+            ObjectGuid summonerGUID;
 
             if (me->IsSummon())
                 if (Unit* summoner = me->ToTempSummon()->GetSummoner())
@@ -321,15 +321,15 @@ public:
         npc_daegarnAI(Creature* creature) : ScriptedAI(creature) { }
 
         bool bEventInProgress;
-        uint64 uiPlayerGUID;
+        ObjectGuid uiPlayerGUID;
 
         void Reset() override
         {
             bEventInProgress = false;
-            uiPlayerGUID = 0;
+            uiPlayerGUID.Clear();
         }
 
-        void StartEvent(uint64 uiGUID)
+        void StartEvent(ObjectGuid uiGUID)
         {
             if (bEventInProgress)
                 return;
diff --git a/src/server/scripts/Northrend/zone_icecrown.cpp b/src/server/scripts/Northrend/zone_icecrown.cpp
index 32b9805470e..a43df0dc3f0 100644
--- a/src/server/scripts/Northrend/zone_icecrown.cpp
+++ b/src/server/scripts/Northrend/zone_icecrown.cpp
@@ -234,7 +234,7 @@ public:
                 {
                     if (who->HasAura(SPELL_SUBDUED_LITHE_STALKER))
                         {
-                            owner->ToPlayer()->KilledMonsterCredit(NPC_GEIST_RETURN_BUNNY_KC, 0);
+                            owner->ToPlayer()->KilledMonsterCredit(NPC_GEIST_RETURN_BUNNY_KC);
                             who->ToCreature()->DisappearAndDie();
 
                     }
@@ -505,7 +505,6 @@ public:
         {
             HalofSpawned = false;
             PhaseCount = 0;
-            Summons.DespawnAll();
 
             SetCombatMovement(false);
         }
@@ -518,10 +517,10 @@ public:
 
         SummonList Summons;
 
-        uint64 guidDalfors;
-        uint64 guidPriest[3];
-        uint64 guidMason[3];
-        uint64 guidHalof;
+        ObjectGuid guidDalfors;
+        ObjectGuid guidPriest[3];
+        ObjectGuid guidMason[3];
+        ObjectGuid guidHalof;
 
         void Reset() override
         {
@@ -912,7 +911,7 @@ class npc_margrave_dhakar : public CreatureScript
 
         struct npc_margrave_dhakarAI : public ScriptedAI
         {
-            npc_margrave_dhakarAI(Creature* creature) : ScriptedAI(creature) , _summons(me), _lichKingGuid(0) { }
+            npc_margrave_dhakarAI(Creature* creature) : ScriptedAI(creature) , _summons(me) { }
 
             void Reset() override
             {
@@ -1026,7 +1025,7 @@ class npc_margrave_dhakar : public CreatureScript
         private:
             EventMap _events;
             SummonList _summons;
-            uint64 _lichKingGuid;
+            ObjectGuid _lichKingGuid;
     };
 
     CreatureAI* GetAI(Creature* creature) const override
diff --git a/src/server/scripts/Northrend/zone_sholazar_basin.cpp b/src/server/scripts/Northrend/zone_sholazar_basin.cpp
index 3f35fc0e172..53fe1500624 100644
--- a/src/server/scripts/Northrend/zone_sholazar_basin.cpp
+++ b/src/server/scripts/Northrend/zone_sholazar_basin.cpp
@@ -374,8 +374,8 @@ public:
             sayStep = 0;
             timer = 0;
             phase = 0;
-            playerGUID = 0;
-            orphanGUID = 0;
+            playerGUID.Clear();
+            orphanGUID.Clear();
         }
 
         void MoveInLineOfSight(Unit* who) override
@@ -489,7 +489,7 @@ public:
                 if (itr->second.CreatureOrGOCount[i] != 0)
                     continue;
 
-                player->KilledMonsterCredit(me->GetEntry(), 0);
+                player->KilledMonsterCredit(me->GetEntry());
                 player->Say(SAY_OFFER, LANG_UNIVERSAL);
                 sayStep = 1;
                 break;
@@ -501,8 +501,8 @@ public:
             uint8 sayStep;
             uint32 timer;
             int8 phase;
-            uint64 playerGUID;
-            uint64 orphanGUID;
+            ObjectGuid playerGUID;
+            ObjectGuid orphanGUID;
     };
 
     CreatureAI* GetAI(Creature* creature) const override
@@ -783,7 +783,7 @@ public:
                     apple->CastSpell(apple, SPELL_APPLE_FALL);
                     wilhelm->AI()->Talk(SAY_WILHELM_HIT);
                     if (Player* player = shooter->ToPlayer())
-                        player->KilledMonsterCredit(NPC_APPLE, 0);
+                        player->KilledMonsterCredit(NPC_APPLE);
                     apple->DespawnOrUnsummon();
 
                     break;
diff --git a/src/server/scripts/Northrend/zone_storm_peaks.cpp b/src/server/scripts/Northrend/zone_storm_peaks.cpp
index cfee2e0f187..a183d0997d4 100644
--- a/src/server/scripts/Northrend/zone_storm_peaks.cpp
+++ b/src/server/scripts/Northrend/zone_storm_peaks.cpp
@@ -454,17 +454,16 @@ public:
     {
         npc_brann_bronzebeard_keystoneAI(Creature* creature) : ScriptedAI(creature)
         {
-            memset(&objectGUID, 0, sizeof(objectGUID));
-            playerGUID = 0;
-            voiceGUID = 0;
             objectCounter = 0;
         }
 
         void Reset() override
         {
-            memset(&objectGUID, 0, sizeof(objectGUID));
-            playerGUID = 0;
-            voiceGUID  = 0;
+            for (ObjectGuid& guid : objectGUID)
+                guid.Clear();
+
+            playerGUID.Clear();
+            voiceGUID.Clear();
             objectCounter = 0;
         }
 
@@ -583,9 +582,9 @@ public:
 
     private:
         EventMap events;
-        uint64 playerGUID;
-        uint64 objectGUID[5];
-        uint64 voiceGUID;
+        ObjectGuid playerGUID;
+        ObjectGuid objectGUID[5];
+        ObjectGuid voiceGUID;
         uint8 objectCounter;
     };
 
@@ -643,13 +642,12 @@ public:
     {
         npc_king_jokkum_vehicleAI(Creature* creature) : VehicleAI(creature)
         {
-            playerGUID = 0;
             pathEnd = false;
         }
 
         void Reset() override
         {
-            playerGUID = 0;
+            playerGUID.Clear();
             pathEnd    = false;
         }
 
@@ -715,7 +713,7 @@ public:
 
     private:
         EventMap events;
-        uint64 playerGUID;
+        ObjectGuid playerGUID;
         bool pathEnd;
 
     };
diff --git a/src/server/scripts/Northrend/zone_wintergrasp.cpp b/src/server/scripts/Northrend/zone_wintergrasp.cpp
index fe74997bb39..b0059de7e27 100644
--- a/src/server/scripts/Northrend/zone_wintergrasp.cpp
+++ b/src/server/scripts/Northrend/zone_wintergrasp.cpp
@@ -198,7 +198,7 @@ class npc_wg_spirit_guide : public CreatureScript
             GraveyardVect graveyard = wintergrasp->GetGraveyardVector();
             for (uint8 i = 0; i < graveyard.size(); i++)
                 if (graveyard[i]->GetControlTeamId() == player->GetTeamId())
-                    player->ADD_GOSSIP_ITEM(GOSSIP_ICON_CHAT, sObjectMgr->GetTrinityStringForDBCLocale(((BfGraveyardWG*)graveyard[i])->GetTextId()), GOSSIP_SENDER_MAIN, GOSSIP_ACTION_INFO_DEF + i);
+                    player->ADD_GOSSIP_ITEM(GOSSIP_ICON_CHAT, player->GetSession()->GetTrinityString(((BfGraveyardWG*)graveyard[i])->GetTextId()), GOSSIP_SENDER_MAIN, GOSSIP_ACTION_INFO_DEF + i);
 
             player->SEND_GOSSIP_MENU(player->GetGossipTextId(creature), creature->GetGUID());
             return true;
@@ -292,7 +292,7 @@ class npc_wg_queue : public CreatureScript
 
             if (wintergrasp->IsWarTime())
             {
-                player->ADD_GOSSIP_ITEM(GOSSIP_ICON_CHAT, sObjectMgr->GetTrinityStringForDBCLocale(WG_NPCQUEUE_TEXTOPTION_JOIN), GOSSIP_SENDER_MAIN, GOSSIP_ACTION_INFO_DEF);
+                player->ADD_GOSSIP_ITEM(GOSSIP_ICON_CHAT, player->GetSession()->GetTrinityString(WG_NPCQUEUE_TEXTOPTION_JOIN), GOSSIP_SENDER_MAIN, GOSSIP_ACTION_INFO_DEF);
                 player->SEND_GOSSIP_MENU(wintergrasp->GetDefenderTeam() ? WG_NPCQUEUE_TEXT_H_WAR : WG_NPCQUEUE_TEXT_A_WAR, creature->GetGUID());
             }
             else
@@ -301,7 +301,7 @@ class npc_wg_queue : public CreatureScript
                 player->SendUpdateWorldState(4354, time(NULL) + timer);
                 if (timer < 15 * MINUTE)
                 {
-                    player->ADD_GOSSIP_ITEM(GOSSIP_ICON_CHAT, sObjectMgr->GetTrinityStringForDBCLocale(WG_NPCQUEUE_TEXTOPTION_JOIN), GOSSIP_SENDER_MAIN, GOSSIP_ACTION_INFO_DEF);
+                    player->ADD_GOSSIP_ITEM(GOSSIP_ICON_CHAT, player->GetSession()->GetTrinityString(WG_NPCQUEUE_TEXTOPTION_JOIN), GOSSIP_SENDER_MAIN, GOSSIP_ACTION_INFO_DEF);
                     player->SEND_GOSSIP_MENU(wintergrasp->GetDefenderTeam() ? WG_NPCQUEUE_TEXT_H_QUEUE : WG_NPCQUEUE_TEXT_A_QUEUE, creature->GetGUID());
                 }
                 else
diff --git a/src/server/scripts/Northrend/zone_zuldrak.cpp b/src/server/scripts/Northrend/zone_zuldrak.cpp
index 2e75b10c0e8..44f559bfa79 100644
--- a/src/server/scripts/Northrend/zone_zuldrak.cpp
+++ b/src/server/scripts/Northrend/zone_zuldrak.cpp
@@ -51,7 +51,7 @@ public:
 
         void Reset() override
         {
-            _rageclawGUID = 0;
+            _rageclawGUID.Clear();
             me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
 
             float x, y, z;
@@ -104,7 +104,7 @@ public:
         }
 
         private:
-            uint64 _rageclawGUID;
+            ObjectGuid _rageclawGUID;
     };
 
     CreatureAI* GetAI(Creature* creature) const override
@@ -455,13 +455,12 @@ public:
         {
             npc_alchemist_finklesteinAI(Creature* creature) : ScriptedAI(creature)
             {
-                _playerGUID = 0;
                 _getingredienttry = 0;
             }
 
             void Reset() override
             {
-                _playerGUID = 0;
+                _playerGUID.Clear();
                 _getingredienttry = 0;
                 _events.ScheduleEvent(EVENT_TURN_TO_POT, urand(15000, 26000));
             }
@@ -556,7 +555,7 @@ public:
 
         private:
             EventMap _events;
-            uint64   _playerGUID;
+            ObjectGuid _playerGUID;
             uint8    _getingredienttry;
         };
 
diff --git a/src/server/scripts/OutdoorPvP/OutdoorPvPHP.cpp b/src/server/scripts/OutdoorPvP/OutdoorPvPHP.cpp
index b3492b8334b..252a2cc8e85 100644
--- a/src/server/scripts/OutdoorPvP/OutdoorPvPHP.cpp
+++ b/src/server/scripts/OutdoorPvP/OutdoorPvPHP.cpp
@@ -255,7 +255,7 @@ void OPvPCapturePointHP::ChangeState()
 
     // complete quest objective
     if (m_State == OBJECTIVESTATE_ALLIANCE || m_State == OBJECTIVESTATE_HORDE)
-        SendObjectiveComplete(HP_CREDITMARKER[m_TowerType], 0);
+        SendObjectiveComplete(HP_CREDITMARKER[m_TowerType], ObjectGuid::Empty);
 }
 
 void OPvPCapturePointHP::FillInitialWorldStates(WorldPacket &data)
diff --git a/src/server/scripts/OutdoorPvP/OutdoorPvPNA.cpp b/src/server/scripts/OutdoorPvP/OutdoorPvPNA.cpp
index 1b4828dec51..b16ced348ec 100644
--- a/src/server/scripts/OutdoorPvP/OutdoorPvPNA.cpp
+++ b/src/server/scripts/OutdoorPvP/OutdoorPvPNA.cpp
@@ -32,7 +32,7 @@ void OutdoorPvPNA::HandleKillImpl(Player* player, Unit* killed)
 {
     if (killed->GetTypeId() == TYPEID_PLAYER && player->GetTeam() != killed->ToPlayer()->GetTeam())
     {
-        player->KilledMonsterCredit(NA_CREDIT_MARKER, 0); // 0 guid, btw it isn't even used in killedmonster function :S
+        player->KilledMonsterCredit(NA_CREDIT_MARKER); // 0 guid, btw it isn't even used in killedmonster function :S
         if (player->GetTeam() == ALLIANCE)
             player->CastSpell(player, NA_KILL_TOKEN_ALLIANCE, true);
         else
@@ -43,7 +43,7 @@ void OutdoorPvPNA::HandleKillImpl(Player* player, Unit* killed)
 uint32 OPvPCapturePointNA::GetAliveGuardsCount()
 {
     uint32 cnt = 0;
-    for (std::map<uint32, uint64>::iterator itr = m_Creatures.begin(); itr != m_Creatures.end(); ++itr)
+    for (std::map<uint32, ObjectGuid>::iterator itr = m_Creatures.begin(); itr != m_Creatures.end(); ++itr)
     {
         switch (itr->first)
         {
@@ -372,7 +372,7 @@ bool OPvPCapturePointNA::HandleCustomSpell(Player* player, uint32 spellId, GameO
     return false;
 }
 
-int32 OPvPCapturePointNA::HandleOpenGo(Player* player, uint64 guid)
+int32 OPvPCapturePointNA::HandleOpenGo(Player* player, ObjectGuid guid)
 {
     int32 retval = OPvPCapturePoint::HandleOpenGo(player, guid);
     if (retval >= 0)
diff --git a/src/server/scripts/OutdoorPvP/OutdoorPvPNA.h b/src/server/scripts/OutdoorPvP/OutdoorPvPNA.h
index aa52c8135e7..8d327da4b0f 100644
--- a/src/server/scripts/OutdoorPvP/OutdoorPvPNA.h
+++ b/src/server/scripts/OutdoorPvP/OutdoorPvPNA.h
@@ -269,7 +269,7 @@ class OPvPCapturePointNA : public OPvPCapturePoint
 
         bool HandleCustomSpell(Player* player, uint32 spellId, GameObject* go);
 
-        int32 HandleOpenGo(Player* player, uint64 guid);
+        int32 HandleOpenGo(Player* player, ObjectGuid guid) override;
 
         uint32 GetAliveGuardsCount();
         uint32 GetControllingFaction() const;
diff --git a/src/server/scripts/OutdoorPvP/OutdoorPvPSI.cpp b/src/server/scripts/OutdoorPvP/OutdoorPvPSI.cpp
index 62108feaeeb..49250c9d638 100644
--- a/src/server/scripts/OutdoorPvP/OutdoorPvPSI.cpp
+++ b/src/server/scripts/OutdoorPvP/OutdoorPvPSI.cpp
@@ -109,7 +109,7 @@ bool OutdoorPvPSI::HandleAreaTrigger(Player* player, uint32 trigger)
             // add 20 cenarion circle repu
             player->GetReputationMgr().ModifyReputation(sFactionStore.LookupEntry(609), 20);
             // complete quest
-            player->KilledMonsterCredit(SI_TURNIN_QUEST_CM_A, 0);
+            player->KilledMonsterCredit(SI_TURNIN_QUEST_CM_A);
         }
         return true;
     case SI_AREATRIGGER_H:
@@ -135,7 +135,7 @@ bool OutdoorPvPSI::HandleAreaTrigger(Player* player, uint32 trigger)
             // add 20 cenarion circle repu
             player->GetReputationMgr().ModifyReputation(sFactionStore.LookupEntry(609), 20);
             // complete quest
-            player->KilledMonsterCredit(SI_TURNIN_QUEST_CM_H, 0);
+            player->KilledMonsterCredit(SI_TURNIN_QUEST_CM_H);
         }
         return true;
     }
diff --git a/src/server/scripts/OutdoorPvP/OutdoorPvPTF.cpp b/src/server/scripts/OutdoorPvP/OutdoorPvPTF.cpp
index e089dfdb7d5..476abe012ce 100644
--- a/src/server/scripts/OutdoorPvP/OutdoorPvPTF.cpp
+++ b/src/server/scripts/OutdoorPvP/OutdoorPvPTF.cpp
@@ -281,7 +281,7 @@ void OPvPCapturePointTF::ChangeState()
 
         m_PvP->SendDefenseMessage(OutdoorPvPTFBuffZones[0], TEXT_SPIRIT_TOWER_TAKEN_ALLIANCE);
 
-        for (PlayerSet::iterator itr = m_activePlayers[0].begin(); itr != m_activePlayers[0].end(); ++itr)
+        for (GuidSet::iterator itr = m_activePlayers[0].begin(); itr != m_activePlayers[0].end(); ++itr)
             if (Player* player = ObjectAccessor::FindPlayer(*itr))
                 player->AreaExploredOrEventHappens(TF_ALLY_QUEST);
         break;
@@ -296,7 +296,7 @@ void OPvPCapturePointTF::ChangeState()
 
         m_PvP->SendDefenseMessage(OutdoorPvPTFBuffZones[0], TEXT_SPIRIT_TOWER_TAKEN_HORDE);
 
-        for (PlayerSet::iterator itr = m_activePlayers[1].begin(); itr != m_activePlayers[1].end(); ++itr)
+        for (GuidSet::iterator itr = m_activePlayers[1].begin(); itr != m_activePlayers[1].end(); ++itr)
             if (Player* player = ObjectAccessor::FindPlayer(*itr))
                 player->AreaExploredOrEventHappens(TF_HORDE_QUEST);
         break;
diff --git a/src/server/scripts/OutdoorPvP/OutdoorPvPZM.cpp b/src/server/scripts/OutdoorPvP/OutdoorPvPZM.cpp
index d6ee91ff2a9..89012b56b82 100644
--- a/src/server/scripts/OutdoorPvP/OutdoorPvPZM.cpp
+++ b/src/server/scripts/OutdoorPvP/OutdoorPvPZM.cpp
@@ -181,7 +181,7 @@ bool OPvPCapturePointZM_GraveYard::Update(uint32 /*diff*/)
     return retval;
 }
 
-int32 OPvPCapturePointZM_GraveYard::HandleOpenGo(Player* player, uint64 guid)
+int32 OPvPCapturePointZM_GraveYard::HandleOpenGo(Player* player, ObjectGuid guid)
 {
     int32 retval = OPvPCapturePoint::HandleOpenGo(player, guid);
     if (retval >= 0)
@@ -218,7 +218,7 @@ OPvPCapturePointZM_GraveYard::OPvPCapturePointZM_GraveYard(OutdoorPvP* pvp)
 {
     m_BothControllingFaction = 0;
     m_GraveYardState = ZM_GRAVEYARD_N;
-    m_FlagCarrierGUID = 0;
+    m_FlagCarrierGUID.Clear();
     // add field scouts here
     AddCreature(ZM_ALLIANCE_FIELD_SCOUT, ZM_AllianceFieldScout.entry, ZM_AllianceFieldScout.map, ZM_AllianceFieldScout.x, ZM_AllianceFieldScout.y, ZM_AllianceFieldScout.z, ZM_AllianceFieldScout.o);
     AddCreature(ZM_HORDE_FIELD_SCOUT, ZM_HordeFieldScout.entry, ZM_HordeFieldScout.map, ZM_HordeFieldScout.x, ZM_HordeFieldScout.y, ZM_HordeFieldScout.z, ZM_HordeFieldScout.o);
@@ -286,7 +286,7 @@ void OPvPCapturePointZM_GraveYard::SetBeaconState(uint32 controlling_faction)
                    p->RemoveAurasDueToSpell(ZM_BATTLE_STANDARD_A);
                    p->RemoveAurasDueToSpell(ZM_BATTLE_STANDARD_H);
                 }
-                m_FlagCarrierGUID = 0;
+                m_FlagCarrierGUID.Clear();
             }
         }
         break;
@@ -297,8 +297,8 @@ void OPvPCapturePointZM_GraveYard::SetBeaconState(uint32 controlling_faction)
 
 bool OPvPCapturePointZM_GraveYard::CanTalkTo(Player* player, Creature* c, GossipMenuItems const& /*gso*/)
 {
-    uint64 guid = c->GetGUID();
-    std::map<uint64, uint32>::iterator itr = m_CreatureTypes.find(guid);
+    ObjectGuid guid = c->GetGUID();
+    std::map<ObjectGuid, uint32>::iterator itr = m_CreatureTypes.find(guid);
     if (itr != m_CreatureTypes.end())
     {
         if (itr->second == ZM_ALLIANCE_FIELD_SCOUT && player->GetTeam() == ALLIANCE && m_BothControllingFaction == ALLIANCE && !m_FlagCarrierGUID && m_GraveYardState != ZM_GRAVEYARD_A)
@@ -309,9 +309,9 @@ bool OPvPCapturePointZM_GraveYard::CanTalkTo(Player* player, Creature* c, Gossip
     return false;
 }
 
-bool OPvPCapturePointZM_GraveYard::HandleGossipOption(Player* player, uint64 guid, uint32 /*gossipid*/)
+bool OPvPCapturePointZM_GraveYard::HandleGossipOption(Player* player, ObjectGuid guid, uint32 /*gossipid*/)
 {
-    std::map<uint64, uint32>::iterator itr = m_CreatureTypes.find(guid);
+    std::map<ObjectGuid, uint32>::iterator itr = m_CreatureTypes.find(guid);
     if (itr != m_CreatureTypes.end())
     {
         Creature* cr = HashMapHolder<Creature>::Find(guid);
@@ -342,10 +342,10 @@ bool OPvPCapturePointZM_GraveYard::HandleDropFlag(Player* /*player*/, uint32 spe
     switch (spellId)
     {
     case ZM_BATTLE_STANDARD_A:
-        m_FlagCarrierGUID = 0;
+        m_FlagCarrierGUID.Clear();
         return true;
     case ZM_BATTLE_STANDARD_H:
-        m_FlagCarrierGUID = 0;
+        m_FlagCarrierGUID.Clear();
         return true;
     }
     return false;
diff --git a/src/server/scripts/OutdoorPvP/OutdoorPvPZM.h b/src/server/scripts/OutdoorPvP/OutdoorPvPZM.h
index eef1ff9cc3b..5910a88f476 100644
--- a/src/server/scripts/OutdoorPvP/OutdoorPvPZM.h
+++ b/src/server/scripts/OutdoorPvP/OutdoorPvPZM.h
@@ -192,11 +192,11 @@ class OPvPCapturePointZM_GraveYard : public OPvPCapturePoint
 
         void UpdateTowerState();
 
-        int32 HandleOpenGo(Player* player, uint64 guid);
+        int32 HandleOpenGo(Player* player, ObjectGuid guid) override;
 
         void SetBeaconState(uint32 controlling_team); // not good atm
 
-        bool HandleGossipOption(Player* player, uint64 guid, uint32 gossipid);
+        bool HandleGossipOption(Player* player, ObjectGuid guid, uint32 gossipid);
 
         bool HandleDropFlag(Player* player, uint32 spellId);
 
@@ -210,7 +210,7 @@ class OPvPCapturePointZM_GraveYard : public OPvPCapturePoint
     protected:
         uint32 m_BothControllingFaction;
 
-        uint64 m_FlagCarrierGUID;
+        ObjectGuid m_FlagCarrierGUID;
 };
 
 class OutdoorPvPZM : public OutdoorPvP
diff --git a/src/server/scripts/Outland/Auchindoun/AuchenaiCrypts/boss_exarch_maladaar.cpp b/src/server/scripts/Outland/Auchindoun/AuchenaiCrypts/boss_exarch_maladaar.cpp
index 7ba0a452941..1cfd7a23f39 100644
--- a/src/server/scripts/Outland/Auchindoun/AuchenaiCrypts/boss_exarch_maladaar.cpp
+++ b/src/server/scripts/Outland/Auchindoun/AuchenaiCrypts/boss_exarch_maladaar.cpp
@@ -174,7 +174,7 @@ public:
         }
 
         uint32 soulmodel;
-        uint64 soulholder;
+        ObjectGuid soulholder;
         uint8 soulclass;
 
         uint32 Fear_timer;
@@ -187,7 +187,7 @@ public:
         void Reset() override
         {
             soulmodel = 0;
-            soulholder = 0;
+            soulholder.Clear();
             soulclass = 0;
 
             Fear_timer = 15000 + rand32() % 5000;
diff --git a/src/server/scripts/Outland/Auchindoun/AuchenaiCrypts/boss_shirrak_the_dead_watcher.cpp b/src/server/scripts/Outland/Auchindoun/AuchenaiCrypts/boss_shirrak_the_dead_watcher.cpp
index 683b253d8a1..9a94096c2de 100644
--- a/src/server/scripts/Outland/Auchindoun/AuchenaiCrypts/boss_shirrak_the_dead_watcher.cpp
+++ b/src/server/scripts/Outland/Auchindoun/AuchenaiCrypts/boss_shirrak_the_dead_watcher.cpp
@@ -69,7 +69,7 @@ public:
         uint32 Carnivorousbite_Timer;
         uint32 FocusFire_Timer;
 
-        uint64 FocusedTargetGUID;
+        ObjectGuid FocusedTargetGUID;
 
         void Reset() override
         {
@@ -77,7 +77,7 @@ public:
             Attractmagic_Timer = 28000;
             Carnivorousbite_Timer = 10000;
             FocusFire_Timer = 17000;
-            FocusedTargetGUID = 0;
+            FocusedTargetGUID.Clear();
         }
 
         void EnterCombat(Unit* /*who*/) override
diff --git a/src/server/scripts/Outland/Auchindoun/ShadowLabyrinth/boss_ambassador_hellmaw.cpp b/src/server/scripts/Outland/Auchindoun/ShadowLabyrinth/boss_ambassador_hellmaw.cpp
index a48f5245273..6ff92bcdb0b 100644
--- a/src/server/scripts/Outland/Auchindoun/ShadowLabyrinth/boss_ambassador_hellmaw.cpp
+++ b/src/server/scripts/Outland/Auchindoun/ShadowLabyrinth/boss_ambassador_hellmaw.cpp
@@ -115,7 +115,7 @@ class boss_ambassador_hellmaw : public CreatureScript
                     me->RemoveAurasDueToSpell(SPELL_BANISH);
 
                 Talk(SAY_INTRO);
-                Start(true, false, 0, NULL, false, true);
+                Start(true, false, ObjectGuid::Empty, NULL, false, true);
             }
 
             void EnterCombat(Unit* /*who*/) override
diff --git a/src/server/scripts/Outland/Auchindoun/ShadowLabyrinth/boss_grandmaster_vorpil.cpp b/src/server/scripts/Outland/Auchindoun/ShadowLabyrinth/boss_grandmaster_vorpil.cpp
index 905fe67af97..b3aac6becc4 100644
--- a/src/server/scripts/Outland/Auchindoun/ShadowLabyrinth/boss_grandmaster_vorpil.cpp
+++ b/src/server/scripts/Outland/Auchindoun/ShadowLabyrinth/boss_grandmaster_vorpil.cpp
@@ -238,7 +238,7 @@ class npc_voidtraveler : public CreatureScript
             {
                 if (_moveTimer <= diff)
                 {
-                    Creature* Vorpil = ObjectAccessor::GetCreature(*me, _instance->GetData64(DATA_GRANDMASTER_VORPIL));
+                    Creature* Vorpil = ObjectAccessor::GetCreature(*me, _instance->GetGuidData(DATA_GRANDMASTER_VORPIL));
                     if (!Vorpil)
                         return;
 
diff --git a/src/server/scripts/Outland/Auchindoun/ShadowLabyrinth/instance_shadow_labyrinth.cpp b/src/server/scripts/Outland/Auchindoun/ShadowLabyrinth/instance_shadow_labyrinth.cpp
index 9bd985130a9..6fea892abea 100644
--- a/src/server/scripts/Outland/Auchindoun/ShadowLabyrinth/instance_shadow_labyrinth.cpp
+++ b/src/server/scripts/Outland/Auchindoun/ShadowLabyrinth/instance_shadow_labyrinth.cpp
@@ -40,8 +40,6 @@ class instance_shadow_labyrinth : public InstanceMapScript
                 SetBossNumber(EncounterCount);
                 LoadDoorData(doorData);
 
-                AmbassadorHellmawGUID = 0;
-                GrandmasterVorpilGUID = 0;
                 FelOverseerCount      = 0;
             }
 
@@ -123,7 +121,7 @@ class instance_shadow_labyrinth : public InstanceMapScript
                 return 0;
             }
 
-            uint64 GetData64(uint32 type) const override
+            ObjectGuid GetGuidData(uint32 type) const override
             {
                 switch (type)
                 {
@@ -132,12 +130,12 @@ class instance_shadow_labyrinth : public InstanceMapScript
                     default:
                         break;
                 }
-                return 0;
+                return ObjectGuid::Empty;
             }
 
         protected:
-            uint64 AmbassadorHellmawGUID;
-            uint64 GrandmasterVorpilGUID;
+            ObjectGuid AmbassadorHellmawGUID;
+            ObjectGuid GrandmasterVorpilGUID;
             uint32 FelOverseerCount;
         };
 
diff --git a/src/server/scripts/Outland/BlackTemple/black_temple.cpp b/src/server/scripts/Outland/BlackTemple/black_temple.cpp
index 3a33561e998..5302aa34a29 100644
--- a/src/server/scripts/Outland/BlackTemple/black_temple.cpp
+++ b/src/server/scripts/Outland/BlackTemple/black_temple.cpp
@@ -156,11 +156,11 @@ public:
                         }
                         case EVENT_SET_CHANNELERS:
                         {
-                            for (uint64 guid : _bloodmageList)
+                            for (ObjectGuid guid : _bloodmageList)
                                 if (Creature* bloodmage = ObjectAccessor::GetCreature(*me, guid))
                                     bloodmage->CastSpell((Unit*)NULL, SPELL_SUMMON_CHANNEL);
 
-                            for (uint64 guid : _deathshaperList)
+                            for (ObjectGuid guid : _deathshaperList)
                                 if (Creature* deathshaper = ObjectAccessor::GetCreature(*me, guid))
                                     deathshaper->CastSpell((Unit*)NULL, SPELL_SUMMON_CHANNEL);
 
@@ -202,8 +202,8 @@ public:
         private:
             InstanceScript* _instance;
             EventMap _events;
-            std::list<uint64> _bloodmageList;
-            std::list<uint64> _deathshaperList;
+            GuidList _bloodmageList;
+            GuidList _deathshaperList;
             bool _enteredCombat;
         };
 
diff --git a/src/server/scripts/Outland/BlackTemple/boss_gurtogg_bloodboil.cpp b/src/server/scripts/Outland/BlackTemple/boss_gurtogg_bloodboil.cpp
index f03caa37cb2..b41e7e77452 100644
--- a/src/server/scripts/Outland/BlackTemple/boss_gurtogg_bloodboil.cpp
+++ b/src/server/scripts/Outland/BlackTemple/boss_gurtogg_bloodboil.cpp
@@ -73,7 +73,7 @@ public:
 
         InstanceScript* instance;
 
-        uint64 TargetGUID;
+        ObjectGuid TargetGUID;
 
         float TargetThreat;
 
@@ -94,7 +94,7 @@ public:
         {
             instance->SetBossState(DATA_GURTOGG_BLOODBOIL, NOT_STARTED);
 
-            TargetGUID = 0;
+            TargetGUID.Clear();
 
             TargetThreat = 0;
 
@@ -134,7 +134,7 @@ public:
             Talk(SAY_DEATH);
         }
 
-        void RevertThreatOnTarget(uint64 guid)
+        void RevertThreatOnTarget(ObjectGuid guid)
         {
             if (Unit* unit = ObjectAccessor::GetUnit(*me, guid))
             {
@@ -258,7 +258,7 @@ public:
                 {
                     if (TargetGUID)
                         RevertThreatOnTarget(TargetGUID);
-                    TargetGUID = 0;
+                    TargetGUID.Clear();
                     Phase1 = true;
                     BloodboilTimer = 10000;
                     BloodboilCount = 0;
diff --git a/src/server/scripts/Outland/BlackTemple/boss_illidan.cpp b/src/server/scripts/Outland/BlackTemple/boss_illidan.cpp
index 22cd886d99b..4ec6aed9655 100644
--- a/src/server/scripts/Outland/BlackTemple/boss_illidan.cpp
+++ b/src/server/scripts/Outland/BlackTemple/boss_illidan.cpp
@@ -381,7 +381,7 @@ public:
         {
             FlameBlastTimer = 15000;
             CheckTimer = 5000;
-            GlaiveGUID = 0;
+            GlaiveGUID.Clear();
         }
 
         void EnterCombat(Unit* /*who*/) override
@@ -424,7 +424,7 @@ public:
             }
         }
 
-        void SetGlaiveGUID(uint64 guid)
+        void SetGlaiveGUID(ObjectGuid guid)
         {
             GlaiveGUID = guid;
         }
@@ -455,7 +455,7 @@ public:
     private:
         uint32 FlameBlastTimer;
         uint32 CheckTimer;
-        uint64 GlaiveGUID;
+        ObjectGuid GlaiveGUID;
     };
 
     CreatureAI* GetAI(Creature* creature) const override
@@ -476,7 +476,6 @@ public:
         {
             instance = creature->GetInstanceScript();
             DoCast(me, SPELL_DUAL_WIELD, true);
-            AkamaGUID = 0;
         }
 
         void Reset() override;
@@ -489,7 +488,7 @@ public:
             {
                 for (uint8 i = 0; i < 2; ++i)
                     if (summon->GetGUID() == FlameGUID[i])
-                        FlameGUID[i] = 0;
+                        FlameGUID[i].Clear();
 
                 if (!FlameGUID[0] && !FlameGUID[1] && Phase != PHASE_ILLIDAN_NULL)
                 {
@@ -542,7 +541,7 @@ public:
             instance->SetBossState(DATA_ILLIDAN_STORMRAGE, DONE);
 
             for (uint8 i = DATA_GO_ILLIDAN_DOOR_R; i < DATA_GO_ILLIDAN_DOOR_L + 1; ++i)
-                instance->HandleGameObject(instance->GetData64(i), true);
+                instance->HandleGameObject(instance->GetGuidData(i), true);
         }
 
         void KilledUnit(Unit* victim) override
@@ -573,7 +572,7 @@ public:
             }
         }
 
-        void DeleteFromThreatList(uint64 TargetGUID)
+        void DeleteFromThreatList(ObjectGuid TargetGUID)
         {
             ThreatContainer::StorageType threatlist = me->getThreatManager().getThreatList();
             for (ThreatContainer::StorageType::const_iterator itr = threatlist.begin(); itr != threatlist.end(); ++itr)
@@ -849,7 +848,7 @@ public:
                         if (Creature* glaive = ObjectAccessor::GetCreature(*me, GlaiveGUID[i]))
                             glaive->DespawnOrUnsummon();
 
-                        GlaiveGUID[i] = 0;
+                        GlaiveGUID[i].Clear();
                     }
                 }
                 Timer[EVENT_FLIGHT_SEQUENCE] = 2000;
@@ -1102,7 +1101,7 @@ public:
         }
 
     public:
-        uint64 AkamaGUID;
+        ObjectGuid AkamaGUID;
         uint32 Timer[EVENT_ENRAGE + 1];
         PhaseIllidan Phase;
     private:
@@ -1112,9 +1111,9 @@ public:
         uint32 TransformCount;
         uint32 FlightCount;
         uint32 HoverPoint;
-        uint64 MaievGUID;
-        uint64 FlameGUID[2];
-        uint64 GlaiveGUID[2];
+        ObjectGuid MaievGUID;
+        ObjectGuid FlameGUID[2];
+        ObjectGuid GlaiveGUID[2];
         SummonList Summons;
     };
 
@@ -1140,7 +1139,7 @@ public:
         {
             MaxTimer = 0;
             Phase = PHASE_NORMAL_MAIEV;
-            IllidanGUID = 0;
+            IllidanGUID.Clear();
             Timer[EVENT_MAIEV_STEALTH] = 0;
             Timer[EVENT_MAIEV_TAUNT] = urand(22, 43) * 1000;
             Timer[EVENT_MAIEV_SHADOW_STRIKE] = 30000;
@@ -1153,7 +1152,7 @@ public:
 
         void EnterEvadeMode() override { }
 
-        void GetIllidanGUID(uint64 guid)
+        void GetIllidanGUID(ObjectGuid guid)
         {
             IllidanGUID = guid;
         }
@@ -1333,7 +1332,7 @@ public:
         }
 
     private:
-        uint64 IllidanGUID;
+        ObjectGuid IllidanGUID;
         PhaseIllidan Phase;
         EventMaiev Event;
         uint32 Timer[5];
@@ -1364,10 +1363,10 @@ public:
             WalkCount = 0;
             instance->SetBossState(DATA_ILLIDAN_STORMRAGE, NOT_STARTED);
 
-            IllidanGUID = instance->GetData64(DATA_ILLIDAN_STORMRAGE);
-            GateGUID = instance->GetData64(DATA_GO_ILLIDAN_GATE);
-            DoorGUID[0] = instance->GetData64(DATA_GO_ILLIDAN_DOOR_R);
-            DoorGUID[1] = instance->GetData64(DATA_GO_ILLIDAN_DOOR_L);
+            IllidanGUID = instance->GetGuidData(DATA_ILLIDAN_STORMRAGE);
+            GateGUID = instance->GetGuidData(DATA_GO_ILLIDAN_GATE);
+            DoorGUID[0] = instance->GetGuidData(DATA_GO_ILLIDAN_DOOR_R);
+            DoorGUID[1] = instance->GetGuidData(DATA_GO_ILLIDAN_DOOR_L);
 
             if (JustCreated) // close all doors at create
             {
@@ -1385,9 +1384,9 @@ public:
                     instance->HandleGameObject(DoorGUID[i], true);
             }
 
-            ChannelGUID   = 0;
-            SpiritGUID[0] = 0;
-            SpiritGUID[1] = 0;
+            ChannelGUID.Clear();
+            SpiritGUID[0].Clear();
+            SpiritGUID[1].Clear();
 
             Phase         = PHASE_AKAMA_NULL;
             Timer         = 0;
@@ -1758,11 +1757,11 @@ public:
         PhaseAkama Phase;
         bool Event;
         uint32 Timer;
-        uint64 IllidanGUID;
-        uint64 ChannelGUID;
-        uint64 SpiritGUID[2];
-        uint64 GateGUID;
-        uint64 DoorGUID[2];
+        ObjectGuid IllidanGUID;
+        ObjectGuid ChannelGUID;
+        ObjectGuid SpiritGUID[2];
+        ObjectGuid GateGUID;
+        ObjectGuid DoorGUID[2];
         uint32 ChannelCount;
         uint32 WalkCount;
         uint32 TalkCount;
@@ -1787,11 +1786,11 @@ void boss_illidan_stormrage::boss_illidan_stormrageAI::Reset()
             akama->AI()->EnterEvadeMode();
     }
 
-    MaievGUID = 0;
+    MaievGUID.Clear();
     for (uint8 i = 0; i < 2; ++i)
     {
-        FlameGUID[i] = 0;
-        GlaiveGUID[i] = 0;
+        FlameGUID[i].Clear();
+        GlaiveGUID[i].Clear();
     }
 
     Phase = PHASE_ILLIDAN_NULL;
@@ -1956,7 +1955,7 @@ public:
 
         void Reset() override
         {
-            IllidanGUID = 0;
+            IllidanGUID.Clear();
 
             Active = false;
             SummonedBeams = false;
@@ -1985,7 +1984,7 @@ public:
                         DespawnTimer = 5000;
                         if (who->HasAura(SPELL_ENRAGE))
                             who->RemoveAurasDueToSpell(SPELL_ENRAGE); // Dispel his enrage
-                        // if (GameObject* CageTrap = instance->instance->GetGameObject(instance->GetData64(CageTrapGUID)))
+                        // if (GameObject* CageTrap = instance->instance->GetGameObject(instance->GetGuidData(CageTrapGUID)))
 
                         //    CageTrap->SetLootState(GO_JUST_DEACTIVATED);
                     }
@@ -2014,7 +2013,7 @@ public:
     public:
         bool Active;
     private:
-        uint64 IllidanGUID;
+        ObjectGuid IllidanGUID;
         uint32 DespawnTimer;
         bool SummonedBeams;
     };
@@ -2059,7 +2058,7 @@ public:
 
         void Reset() override
         {
-            TargetGUID = 0;
+            TargetGUID.Clear();
             DoCast(me, SPELL_SHADOW_DEMON_PASSIVE, true);
         }
 
@@ -2090,7 +2089,7 @@ public:
         }
 
     private:
-        uint64 TargetGUID;
+        ObjectGuid TargetGUID;
     };
 
     CreatureAI* GetAI(Creature* creature) const override
@@ -2136,7 +2135,7 @@ public:
 
         void Reset() override
         {
-            IllidanGUID = instance->GetData64(DATA_ILLIDAN_STORMRAGE);
+            IllidanGUID = instance->GetGuidData(DATA_ILLIDAN_STORMRAGE);
 
             CheckTimer = 5000;
             DoCast(me, SPELL_SHADOWFIEND_PASSIVE, true);
@@ -2195,7 +2194,7 @@ public:
 
     private:
         InstanceScript* instance;
-        uint64 IllidanGUID;
+        ObjectGuid IllidanGUID;
         uint32 CheckTimer;
     };
 
diff --git a/src/server/scripts/Outland/BlackTemple/boss_mother_shahraz.cpp b/src/server/scripts/Outland/BlackTemple/boss_mother_shahraz.cpp
index 60162188f7e..39aac706acc 100644
--- a/src/server/scripts/Outland/BlackTemple/boss_mother_shahraz.cpp
+++ b/src/server/scripts/Outland/BlackTemple/boss_mother_shahraz.cpp
@@ -112,8 +112,8 @@ public:
 
         void Initialize()
         {
-            for (uint8 i = 0; i<3; ++i)
-                TargetGUID[i] = 0;
+            for (uint8 i = 0; i < 3; ++i)
+                TargetGUID[i].Clear();
 
             BeamCount = 0;
             CurrentBeam = SINISTER_BEAM;   // 0 - Sinister, 1 - Vile, 2 - Wicked, 3 - Sinful
@@ -236,7 +236,7 @@ public:
                             {
                                 if (Unit* unit = ObjectAccessor::GetUnit(*me, TargetGUID[i]))
                                     unit->CastSpell(unit, SPELL_ATTRACTION, true);
-                                TargetGUID[i] = 0;
+                                TargetGUID[i].Clear();
                             }
                         }
                         ++ExplosionCount;
@@ -267,7 +267,7 @@ public:
         }
 
     private:
-        uint64 TargetGUID[3];
+        ObjectGuid TargetGUID[3];
         uint32 BeamCount;
         uint32 CurrentBeam;
         uint32 ExplosionCount;
diff --git a/src/server/scripts/Outland/BlackTemple/boss_reliquary_of_souls.cpp b/src/server/scripts/Outland/BlackTemple/boss_reliquary_of_souls.cpp
index f3c8af50328..c5989f4df64 100644
--- a/src/server/scripts/Outland/BlackTemple/boss_reliquary_of_souls.cpp
+++ b/src/server/scripts/Outland/BlackTemple/boss_reliquary_of_souls.cpp
@@ -113,9 +113,12 @@ public:
     {
         npc_enslaved_soulAI(Creature* creature) : ScriptedAI(creature) { }
 
-        uint64 ReliquaryGUID;
+        ObjectGuid ReliquaryGUID;
 
-        void Reset() override { ReliquaryGUID = 0; }
+        void Reset() override
+        {
+            ReliquaryGUID.Clear(); 
+        }
 
         void EnterCombat(Unit* /*who*/) override
         {
@@ -142,12 +145,11 @@ public:
         boss_reliquary_of_soulsAI(Creature* creature) : ScriptedAI(creature)
         {
             instance = creature->GetInstanceScript();
-            EssenceGUID = 0;
         }
 
         InstanceScript* instance;
 
-        uint64 EssenceGUID;
+        ObjectGuid EssenceGUID;
 
         uint32 Phase;
         uint32 Counter;
@@ -165,7 +167,7 @@ public:
                 if (Creature* essence = ObjectAccessor::GetCreature(*me, EssenceGUID))
                     essence->DespawnOrUnsummon();
 
-                EssenceGUID = 0;
+                EssenceGUID.Clear();
             }
 
             Phase = 0;
@@ -334,17 +336,15 @@ public:
                     if (Essence)
                     {
                         if (Phase == 1)
-                        {
                             Essence->AI()->Talk(SUFF_SAY_AFTER);
-                        }
                         else
-                        {
                             Essence->AI()->Talk(DESI_SAY_AFTER);
-                        }
+
                         Essence->DespawnOrUnsummon();
                     }
+
                     me->SetUInt32Value(UNIT_NPC_EMOTESTATE, 0);
-                    EssenceGUID = 0;
+                    EssenceGUID.Clear();
                     SoulCount = 0;
                     SoulDeathCount = 0;
                     Timer = 3000;
@@ -624,7 +624,7 @@ public:
     {
         boss_essence_of_angerAI(Creature* creature) : ScriptedAI(creature) { }
 
-        uint64 AggroTargetGUID;
+        ObjectGuid AggroTargetGUID;
 
         uint32 CheckTankTimer;
         uint32 SoulScreamTimer;
@@ -636,7 +636,7 @@ public:
 
         void Reset() override
         {
-            AggroTargetGUID = 0;
+            AggroTargetGUID.Clear();
 
             CheckTankTimer = 5000;
             SoulScreamTimer = 10000;
diff --git a/src/server/scripts/Outland/BlackTemple/boss_shade_of_akama.cpp b/src/server/scripts/Outland/BlackTemple/boss_shade_of_akama.cpp
index f1e170c0705..6b337e42087 100644
--- a/src/server/scripts/Outland/BlackTemple/boss_shade_of_akama.cpp
+++ b/src/server/scripts/Outland/BlackTemple/boss_shade_of_akama.cpp
@@ -175,11 +175,11 @@ public:
         {
             if (!HasKilledAkamaAndReseting)
             {
-                for (std::list<uint64>::const_iterator itr = Channelers.begin(); itr != Channelers.end(); ++itr)
+                for (GuidList::const_iterator itr = Channelers.begin(); itr != Channelers.end(); ++itr)
                     if (Creature* Channeler = ObjectAccessor::GetCreature(*me, *itr))
                         Channeler->DespawnOrUnsummon();
 
-                for (std::list<uint64>::const_iterator itr = Spawners.begin(); itr != Spawners.end(); ++itr)
+                for (GuidList::const_iterator itr = Spawners.begin(); itr != Spawners.end(); ++itr)
                     if (Creature* Spawner = ObjectAccessor::GetCreature(*me, *itr))
                         Spawner->AI()->SetData(SETDATA_DATA, SETDATA_DESPAWN_ALL_SPAWNS);
 
@@ -207,7 +207,7 @@ public:
         {
             if (me->HasFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE))
             {
-                if (Creature* Akama = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_AKAMA_SHADE)))
+                if (Creature* Akama = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_AKAMA_SHADE)))
                     if (Akama->IsAlive())
                         ScriptedAI::AttackStart(Akama);
             }
@@ -231,7 +231,7 @@ public:
                 events.ScheduleEvent(EVENT_START_ATTACK_AKAMA, 500);
                 events.ScheduleEvent(EVENT_SET_CHANNELERS_SPAWNERS, 1000);
                 me->SetUInt32Value(UNIT_NPC_EMOTESTATE, EMOTE_STATE_NONE);
-                if (Creature* Akama = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_AKAMA_SHADE)))
+                if (Creature* Akama = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_AKAMA_SHADE)))
                     me->AddThreat(Akama, 10000000.0f);
             }
             else if (spell->Id == SPELL_SHADE_SOUL_CHANNEL_2)
@@ -267,7 +267,7 @@ public:
                     switch (eventId)
                     {
                         case EVENT_RESET_ENCOUNTER:
-                            if (Creature* Akama = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_AKAMA_SHADE)))
+                            if (Creature* Akama = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_AKAMA_SHADE)))
                                 if (!Akama->IsAlive())
                                     Akama->Respawn();
                             break;
@@ -307,17 +307,13 @@ public:
                     {
                         case EVENT_SET_CHANNELERS_SPAWNERS:
                         {
-                            for (std::list<uint64>::const_iterator itr = Channelers.begin(); itr != Channelers.end(); ++itr)
-                            {
+                            for (GuidList::const_iterator itr = Channelers.begin(); itr != Channelers.end(); ++itr)
                                 if (Creature* Channeler = ObjectAccessor::GetCreature(*me, *itr))
                                     Channeler->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
-                            }
 
-                            for (std::list<uint64>::const_iterator itr = Spawners.begin(); itr != Spawners.end(); ++itr)
-                            {
+                            for (GuidList::const_iterator itr = Spawners.begin(); itr != Spawners.end(); ++itr)
                                 if (Creature* Spawner = ObjectAccessor::GetCreature(*me, *itr))
                                     Spawner->AI()->SetData(SETDATA_DATA, SETDATA_START_SPAWNING);
-                            }
                             break;
                         }
                         case EVENT_START_ATTACK_AKAMA:
@@ -347,14 +343,14 @@ public:
                         me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_IMMUNE_TO_PC);
                         combatStarted = false;
 
-                        if (Creature* Akama = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_AKAMA_SHADE)))
+                        if (Creature* Akama = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_AKAMA_SHADE)))
                             Akama->DespawnOrUnsummon();
 
-                        for (std::list<uint64>::const_iterator itr = Channelers.begin(); itr != Channelers.end(); ++itr)
+                        for (GuidList::const_iterator itr = Channelers.begin(); itr != Channelers.end(); ++itr)
                             if (Creature* Channeler = ObjectAccessor::GetCreature(*me, *itr))
                                 Channeler->DespawnOrUnsummon();
 
-                        for (std::list<uint64>::const_iterator itr = Spawners.begin(); itr != Spawners.end(); ++itr)
+                        for (GuidList::const_iterator itr = Spawners.begin(); itr != Spawners.end(); ++itr)
                             if (Creature* Spawner = ObjectAccessor::GetCreature(*me, *itr))
                                 Spawner->AI()->SetData(SETDATA_DATA, SETDATA_DESPAWN_ALL_SPAWNS);
 
@@ -365,7 +361,7 @@ public:
 
                 if (!akamaReached)
                 {
-                    if (Creature* Akama = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_AKAMA_SHADE)))
+                    if (Creature* Akama = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_AKAMA_SHADE)))
                     {
                         if (me->IsWithinDist(Akama, 2.0f, false))
                         {
@@ -379,7 +375,7 @@ public:
                             events.CancelEvent(EVENT_START_ATTACK_AKAMA);
                             events.ScheduleEvent(EVENT_ADD_THREAT, 100);
 
-                            for (std::list<uint64>::const_iterator itr = Spawners.begin(); itr != Spawners.end(); ++itr)
+                            for (GuidList::const_iterator itr = Spawners.begin(); itr != Spawners.end(); ++itr)
                                 if (Creature* Spawner = ObjectAccessor::GetCreature(*me, *itr))
                                     Spawner->AI()->SetData(SETDATA_DATA, SETDATA_STOP_SPAWNING);
                         }
@@ -395,8 +391,8 @@ public:
         private:
             InstanceScript* instance;
             EventMap events;
-            std::list<uint64> Channelers;
-            std::list<uint64> Spawners;
+            GuidList Channelers;
+            GuidList Spawners;
             bool akamaReached;
             bool combatStarted;
             bool HasKilledAkamaAndReseting;
@@ -437,7 +433,7 @@ public:
 
         void JustDied(Unit* /*killer*/) override
         {
-            if (Creature* Shade = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SHADE_OF_AKAMA)))
+            if (Creature* Shade = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SHADE_OF_AKAMA)))
                 if (Shade->IsAlive())
                     ENSURE_AI(boss_shade_of_akama::boss_shade_of_akamaAI, Shade->AI())->HasKilledAkama = true;
             me->GetMotionMaster()->Clear(true);
@@ -451,7 +447,7 @@ public:
                 me->ClearUnitState(UNIT_STATE_ROOT);
                 me->RemoveAura(SPELL_AKAMA_SOUL_CHANNEL);
                 me->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_STUNNED);
-                if (Creature* Shade = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SHADE_OF_AKAMA)))
+                if (Creature* Shade = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SHADE_OF_AKAMA)))
                     Shade->RemoveAura(SPELL_AKAMA_SOUL_CHANNEL);
                 StartCombat = true;
             }
@@ -577,7 +573,7 @@ public:
 
         void JustDied(Unit* /*killer*/) override
         {
-            if (Creature* Shade = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SHADE_OF_AKAMA)))
+            if (Creature* Shade = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SHADE_OF_AKAMA)))
                 Shade->AI()->SetData(SETDATA_DATA, SETDATA_CHANNELER_DIED);
         }
 
@@ -593,7 +589,7 @@ public:
                 switch (eventId)
                 {
                     case EVENT_CHANNEL:
-                        if (Creature* Shade = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SHADE_OF_AKAMA)))
+                        if (Creature* Shade = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SHADE_OF_AKAMA)))
                         {
                             if (Shade->HasFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE))
                                 DoCast(me, SPELL_SHADE_SOUL_CHANNEL);
@@ -751,26 +747,26 @@ public:
         {
             if (!startedBanishing)
             {
-                if (Creature* Shade = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SHADE_OF_AKAMA)))
+                if (Creature* Shade = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SHADE_OF_AKAMA)))
                 {
                     if (Shade->HasFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE))
                         me->GetMotionMaster()->MovePoint(0, Shade->GetPositionX(), Shade->GetPositionY(), Shade->GetPositionZ(), false);
                     else
                     {
-                        if (Unit* target = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_AKAMA_SHADE)))
+                        if (Unit* target = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_AKAMA_SHADE)))
                             AttackStart(target);
                     }
                 }
             }
 
-            summonerGuid     = 0;
+            summonerGuid.Clear();
             startedBanishing = false;
             switchToCombat   = false;
         }
 
         void JustDied(Unit* /*killer*/) override
         {
-            if (Creature* Shade = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SHADE_OF_AKAMA)))
+            if (Creature* Shade = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SHADE_OF_AKAMA)))
                 Shade->AI()->SetData(SETDATA_DATA, SETDATA_CHANNELER_DIED);
             me->DespawnOrUnsummon(5000);
         }
@@ -799,7 +795,7 @@ public:
                 switch (eventId)
                 {
                     case EVENT_SORCERER_CHANNEL:
-                        if (Creature* Shade = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SHADE_OF_AKAMA)))
+                        if (Creature* Shade = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SHADE_OF_AKAMA)))
                         {
                             if (Shade->HasFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE))
                             {
@@ -812,7 +808,7 @@ public:
                                 me->InterruptSpell(CURRENT_CHANNELED_SPELL);
                                 Shade->AI()->SetData(SETDATA_DATA, SETDATA_CHANNELER_DIED);
                                 switchToCombat = true;
-                                if (Unit* target = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_AKAMA_SHADE)))
+                                if (Unit* target = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_AKAMA_SHADE)))
                                     AttackStart(target);
                             }
                         }
@@ -824,7 +820,7 @@ public:
 
             if (!startedBanishing)
             {
-                Creature* Shade = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SHADE_OF_AKAMA));
+                Creature* Shade = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SHADE_OF_AKAMA));
                 if (me->IsWithinDist(Shade, 20.0f, false))
                 {
                     me->StopMoving();
@@ -841,7 +837,7 @@ public:
         private:
             InstanceScript* instance;
             EventMap events;
-            uint64 summonerGuid;
+            ObjectGuid summonerGuid;
             bool startedBanishing;
             bool switchToCombat;
     };
@@ -870,9 +866,9 @@ public:
 
         void Reset() override
         {
-            summonerGuid     = 0;
+            summonerGuid.Clear();
 
-            if (Unit* target = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_AKAMA_SHADE)))
+            if (Unit* target = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_AKAMA_SHADE)))
                 AttackStart(target);
         }
 
@@ -933,7 +929,7 @@ public:
         private:
             InstanceScript* instance;
             EventMap events;
-            uint64 summonerGuid;
+            ObjectGuid summonerGuid;
     };
 
     CreatureAI* GetAI(Creature* creature) const override
@@ -960,9 +956,9 @@ public:
 
         void Reset() override
         {
-            summonerGuid     = 0;
+            summonerGuid.Clear();
 
-            if (Unit* target = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_AKAMA_SHADE)))
+            if (Unit* target = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_AKAMA_SHADE)))
                 AttackStart(target);
         }
 
@@ -1013,7 +1009,7 @@ public:
         private:
             InstanceScript* instance;
             EventMap events;
-            uint64 summonerGuid;
+            ObjectGuid summonerGuid;
     };
 
     CreatureAI* GetAI(Creature* creature) const override
@@ -1040,9 +1036,9 @@ public:
 
         void Reset() override
         {
-            summonerGuid     = 0;
+            summonerGuid.Clear();
 
-            if (Unit* target = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_AKAMA_SHADE)))
+            if (Unit* target = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_AKAMA_SHADE)))
                 AttackStart(target);
         }
 
@@ -1093,7 +1089,7 @@ public:
         private:
             InstanceScript* instance;
             EventMap events;
-            uint64 summonerGuid;
+            ObjectGuid summonerGuid;
     };
 
     CreatureAI* GetAI(Creature* creature) const override
@@ -1122,9 +1118,9 @@ public:
         {
             spiritMend = false;
             chainHeal  = false;
-            summonerGuid = 0;
+            summonerGuid.Clear();
 
-            if (Unit* target = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_AKAMA_SHADE)))
+            if (Unit* target = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_AKAMA_SHADE)))
                 AttackStart(target);
         }
 
@@ -1188,7 +1184,7 @@ public:
         private:
             InstanceScript* instance;
             EventMap events;
-            uint64 summonerGuid;
+            ObjectGuid summonerGuid;
             bool spiritMend;
             bool chainHeal;
     };
diff --git a/src/server/scripts/Outland/BlackTemple/boss_teron_gorefiend.cpp b/src/server/scripts/Outland/BlackTemple/boss_teron_gorefiend.cpp
index 0bbf2cb2a96..081dbc079a7 100644
--- a/src/server/scripts/Outland/BlackTemple/boss_teron_gorefiend.cpp
+++ b/src/server/scripts/Outland/BlackTemple/boss_teron_gorefiend.cpp
@@ -67,13 +67,13 @@ public:
 
         uint32 CheckTeronTimer;
         uint32 ShadowBoltTimer;
-        uint64 TeronGUID;
+        ObjectGuid TeronGUID;
 
         void Reset() override
         {
             CheckTeronTimer = 5000;
             ShadowBoltTimer = 12000;
-            TeronGUID = 0;
+            TeronGUID.Clear();
         }
 
         void EnterCombat(Unit* /*who*/) override { }
@@ -113,7 +113,7 @@ public:
             return;
         }
 
-        void SetTeronGUID(uint64 guid)
+        void SetTeronGUID(ObjectGuid guid)
         {
             TeronGUID = guid;
         }
@@ -134,16 +134,16 @@ public:
     {
         npc_shadowy_constructAI(Creature* creature) : ScriptedAI(creature) { }
 
-        uint64 GhostGUID;
-        uint64 TeronGUID;
+        ObjectGuid GhostGUID;
+        ObjectGuid TeronGUID;
 
         uint32 CheckPlayerTimer;
         uint32 CheckTeronTimer;
 
         void Reset() override
         {
-            GhostGUID = 0;
-            TeronGUID = 0;
+            GhostGUID.Clear();
+            TeronGUID.Clear();
 
             CheckPlayerTimer = 2000;
             CheckTeronTimer = 5000;
@@ -238,8 +238,8 @@ public:
         uint32 RandomYellTimer;
         uint32 AggroTimer;
 
-        uint64 AggroTargetGUID;
-        uint64 GhostGUID;                                       // Player that gets killed by Shadow of Death and gets turned into a ghost
+        ObjectGuid AggroTargetGUID;
+        ObjectGuid GhostGUID;                                       // Player that gets killed by Shadow of Death and gets turned into a ghost
 
         bool Intro;
         bool Done;
@@ -260,7 +260,7 @@ public:
             me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
 
             AggroTimer = 20000;
-            AggroTargetGUID = 0;
+            AggroTargetGUID.Clear();
             Intro = false;
             Done = false;
         }
diff --git a/src/server/scripts/Outland/BlackTemple/boss_warlord_najentus.cpp b/src/server/scripts/Outland/BlackTemple/boss_warlord_najentus.cpp
index c998bfed2dc..0f80e541261 100644
--- a/src/server/scripts/Outland/BlackTemple/boss_warlord_najentus.cpp
+++ b/src/server/scripts/Outland/BlackTemple/boss_warlord_najentus.cpp
@@ -1,145 +1,144 @@
-/*
- * Copyright (C) 2008-2014 TrinityCore <http://www.trinitycore.org/>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "ScriptMgr.h"
-#include "ScriptedCreature.h"
-#include "black_temple.h"
-#include "Player.h"
-#include "SpellInfo.h"
-
-enum Texts
-{
-    SAY_AGGRO                       = 0,
-    SAY_NEEDLE                      = 1,
-    SAY_SLAY                        = 2,
-    SAY_SPECIAL                     = 3,
-    SAY_ENRAGE                      = 4,
-    SAY_DEATH                       = 5
-};
-
-enum Spells
-{
-    SPELL_NEEDLE_SPINE              = 39992,
-    SPELL_TIDAL_BURST               = 39878,
-    SPELL_TIDAL_SHIELD              = 39872,
-    SPELL_IMPALING_SPINE            = 39837,
-    SPELL_CREATE_NAJENTUS_SPINE     = 39956,
-    SPELL_HURL_SPINE                = 39948,
-    SPELL_BERSERK                   = 26662
-
-};
-
-enum Events
-{
-    EVENT_BERSERK                   = 1,
-    EVENT_YELL                      = 2,
-    EVENT_NEEDLE                    = 3,
-    EVENT_SPINE                     = 4,
-    EVENT_SHIELD                    = 5
-};
-
-enum EventGroups
-{
-    GCD_CAST                        = 1,
-    GCD_YELL                        = 2
-};
-
-class boss_najentus : public CreatureScript
-{
-public:
-    boss_najentus() : CreatureScript("boss_najentus") { }
-
-    struct boss_najentusAI : public BossAI
-    {
-        boss_najentusAI(Creature* creature) : BossAI(creature, DATA_HIGH_WARLORD_NAJENTUS)
-        {
-            SpineTargetGUID = 0;
-        }
-
-        void Reset() override
-        {
-            _Reset();
-            SpineTargetGUID = 0;
-        }
-
-        void KilledUnit(Unit* /*victim*/) override
-        {
-            Talk(SAY_SLAY);
-            events.DelayEvents(5000, GCD_YELL);
-        }
-
-        void JustDied(Unit* /*killer*/) override
-        {
-            _JustDied();
-            Talk(SAY_DEATH);
-        }
-
-        void SpellHit(Unit* /*caster*/, const SpellInfo* spell) override
-        {
-            if (spell->Id == SPELL_HURL_SPINE && me->HasAura(SPELL_TIDAL_SHIELD))
-            {
-                me->RemoveAurasDueToSpell(SPELL_TIDAL_SHIELD);
-                DoCast(me, SPELL_TIDAL_BURST, true);
-                ResetTimer();
-            }
-        }
-
-        void EnterCombat(Unit* /*who*/) override
-        {
-            _EnterCombat();
-            Talk(SAY_AGGRO);
-            events.ScheduleEvent(EVENT_BERSERK, 480000, GCD_CAST);
-            events.ScheduleEvent(EVENT_YELL, 45000 + (rand32() % 76) * 1000, GCD_YELL);
-            ResetTimer();
-        }
-
-        bool RemoveImpalingSpine()
-        {
-            if (!SpineTargetGUID)
-                return false;
-
-            Unit* target = ObjectAccessor::GetUnit(*me, SpineTargetGUID);
-            if (target && target->HasAura(SPELL_IMPALING_SPINE))
-                target->RemoveAurasDueToSpell(SPELL_IMPALING_SPINE);
-            SpineTargetGUID=0;
-            return true;
-        }
-
-        void ResetTimer(uint32 inc = 0)
-        {
-            events.RescheduleEvent(EVENT_NEEDLE, 10000 + inc, GCD_CAST);
-            events.RescheduleEvent(EVENT_SPINE, 20000 + inc, GCD_CAST);
-            events.RescheduleEvent(EVENT_SHIELD, 60000 + inc);
-        }
-
-        void ExecuteEvent(uint32 eventId) override
-        {
-            switch (eventId)
-            {
-                case EVENT_SHIELD:
-                    DoCast(me, SPELL_TIDAL_SHIELD, true);
-                    ResetTimer(45000);
-                    break;
-                case EVENT_BERSERK:
-                    Talk(SAY_ENRAGE);
-                    DoCast(me, SPELL_BERSERK, true);
-                    events.DelayEvents(15000, GCD_YELL);
-                    break;
-                case EVENT_SPINE:
+/*

+ * Copyright (C) 2008-2014 TrinityCore <http://www.trinitycore.org/>

+ *

+ * This program is free software; you can redistribute it and/or modify it

+ * under the terms of the GNU General Public License as published by the

+ * Free Software Foundation; either version 2 of the License, or (at your

+ * option) any later version.

+ *

+ * This program is distributed in the hope that it will be useful, but WITHOUT

+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for

+ * more details.

+ *

+ * You should have received a copy of the GNU General Public License along

+ * with this program. If not, see <http://www.gnu.org/licenses/>.

+ */

+

+#include "ScriptMgr.h"

+#include "ScriptedCreature.h"

+#include "black_temple.h"

+#include "Player.h"

+#include "SpellInfo.h"

+

+enum Texts

+{

+    SAY_AGGRO                       = 0,

+    SAY_NEEDLE                      = 1,

+    SAY_SLAY                        = 2,

+    SAY_SPECIAL                     = 3,

+    SAY_ENRAGE                      = 4,

+    SAY_DEATH                       = 5

+};

+

+enum Spells

+{

+    SPELL_NEEDLE_SPINE              = 39992,

+    SPELL_TIDAL_BURST               = 39878,

+    SPELL_TIDAL_SHIELD              = 39872,

+    SPELL_IMPALING_SPINE            = 39837,

+    SPELL_CREATE_NAJENTUS_SPINE     = 39956,

+    SPELL_HURL_SPINE                = 39948,

+    SPELL_BERSERK                   = 26662

+

+};

+

+enum Events

+{

+    EVENT_BERSERK                   = 1,

+    EVENT_YELL                      = 2,

+    EVENT_NEEDLE                    = 3,

+    EVENT_SPINE                     = 4,

+    EVENT_SHIELD                    = 5

+};

+

+enum EventGroups

+{

+    GCD_CAST                        = 1,

+    GCD_YELL                        = 2

+};

+

+class boss_najentus : public CreatureScript

+{

+public:

+    boss_najentus() : CreatureScript("boss_najentus") { }

+

+    struct boss_najentusAI : public BossAI

+    {

+        boss_najentusAI(Creature* creature) : BossAI(creature, DATA_HIGH_WARLORD_NAJENTUS)

+        {

+        }

+

+        void Reset() override

+        {

+            _Reset();

+            SpineTargetGUID.Clear();

+        }

+

+        void KilledUnit(Unit* /*victim*/) override

+        {

+            Talk(SAY_SLAY);

+            events.DelayEvents(5000, GCD_YELL);

+        }

+

+        void JustDied(Unit* /*killer*/) override

+        {

+            _JustDied();

+            Talk(SAY_DEATH);

+        }

+

+        void SpellHit(Unit* /*caster*/, const SpellInfo* spell) override

+        {

+            if (spell->Id == SPELL_HURL_SPINE && me->HasAura(SPELL_TIDAL_SHIELD))

+            {

+                me->RemoveAurasDueToSpell(SPELL_TIDAL_SHIELD);

+                DoCast(me, SPELL_TIDAL_BURST, true);

+                ResetTimer();

+            }

+        }

+

+        void EnterCombat(Unit* /*who*/) override

+        {

+            _EnterCombat();

+            Talk(SAY_AGGRO);

+            events.ScheduleEvent(EVENT_BERSERK, 480000, GCD_CAST);

+            events.ScheduleEvent(EVENT_YELL, 45000 + (rand32() % 76) * 1000, GCD_YELL);

+            ResetTimer();

+        }

+

+        bool RemoveImpalingSpine()

+        {

+            if (!SpineTargetGUID)

+                return false;

+

+            Unit* target = ObjectAccessor::GetUnit(*me, SpineTargetGUID);

+            if (target && target->HasAura(SPELL_IMPALING_SPINE))

+                target->RemoveAurasDueToSpell(SPELL_IMPALING_SPINE);

+            SpineTargetGUID.Clear();

+            return true;

+        }

+

+        void ResetTimer(uint32 inc = 0)

+        {

+            events.RescheduleEvent(EVENT_NEEDLE, 10000 + inc, GCD_CAST);

+            events.RescheduleEvent(EVENT_SPINE, 20000 + inc, GCD_CAST);

+            events.RescheduleEvent(EVENT_SHIELD, 60000 + inc);

+        }

+

+        void ExecuteEvent(uint32 eventId) override

+        {

+            switch (eventId)

+            {

+                case EVENT_SHIELD:

+                    DoCast(me, SPELL_TIDAL_SHIELD, true);

+                    ResetTimer(45000);

+                    break;

+                case EVENT_BERSERK:

+                    Talk(SAY_ENRAGE);

+                    DoCast(me, SPELL_BERSERK, true);

+                    events.DelayEvents(15000, GCD_YELL);

+                    break;

+                case EVENT_SPINE:

                 {

                     Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 1);

 

@@ -158,59 +157,59 @@ public:
                     }

                     events.ScheduleEvent(EVENT_SPINE, 21000, GCD_CAST);

                     return;

-                }
-                case EVENT_NEEDLE:
-                    {
-                        //DoCast(me, SPELL_NEEDLE_SPINE, true);
-                        std::list<Unit*> targets;
-                        SelectTargetList(targets, 3, SELECT_TARGET_RANDOM, 80, true);
-                        for (std::list<Unit*>::const_iterator i = targets.begin(); i != targets.end(); ++i)
-                            DoCast(*i, 39835, true);
-                        events.ScheduleEvent(EVENT_NEEDLE, urand(15000, 25000), GCD_CAST);
-                        events.DelayEvents(1500, GCD_CAST);
-                        return;
-                    }
-                case EVENT_YELL:
-                    Talk(SAY_SPECIAL);
-                    events.ScheduleEvent(EVENT_YELL, urand(25000, 100000), GCD_YELL);
-                    events.DelayEvents(15000, GCD_YELL);
-                    break;
-                default:
-                    break;
-            }
-        }
-
-    private:
-        uint64 SpineTargetGUID;
-    };
-
-    CreatureAI* GetAI(Creature* creature) const override
-    {
-        return GetBlackTempleAI<boss_najentusAI>(creature);
-    }
-};
-
-class go_najentus_spine : public GameObjectScript
-{
-public:
-    go_najentus_spine() : GameObjectScript("go_najentus_spine") { }
-
-    bool OnGossipHello(Player* player, GameObject* go) override
-    {
-        if (InstanceScript* instance = go->GetInstanceScript())
-            if (Creature* Najentus = ObjectAccessor::GetCreature(*go, instance->GetData64(DATA_HIGH_WARLORD_NAJENTUS)))
-                if (ENSURE_AI(boss_najentus::boss_najentusAI, Najentus->AI())->RemoveImpalingSpine())
-                {
-                    player->CastSpell(player, SPELL_CREATE_NAJENTUS_SPINE, true);
-                    go->Delete();
-                }
-        return true;
-    }
-
-};
-
-void AddSC_boss_najentus()
-{
-    new boss_najentus();
-    new go_najentus_spine();
-}
+                }

+                case EVENT_NEEDLE:

+                    {

+                        //DoCast(me, SPELL_NEEDLE_SPINE, true);

+                        std::list<Unit*> targets;

+                        SelectTargetList(targets, 3, SELECT_TARGET_RANDOM, 80, true);

+                        for (std::list<Unit*>::const_iterator i = targets.begin(); i != targets.end(); ++i)

+                            DoCast(*i, 39835, true);

+                        events.ScheduleEvent(EVENT_NEEDLE, urand(15000, 25000), GCD_CAST);

+                        events.DelayEvents(1500, GCD_CAST);

+                        return;

+                    }

+                case EVENT_YELL:

+                    Talk(SAY_SPECIAL);

+                    events.ScheduleEvent(EVENT_YELL, urand(25000, 100000), GCD_YELL);

+                    events.DelayEvents(15000, GCD_YELL);

+                    break;

+                default:

+                    break;

+            }

+        }

+

+    private:

+        ObjectGuid SpineTargetGUID;

+    };

+

+    CreatureAI* GetAI(Creature* creature) const override

+    {

+        return GetBlackTempleAI<boss_najentusAI>(creature);

+    }

+};

+

+class go_najentus_spine : public GameObjectScript

+{

+public:

+    go_najentus_spine() : GameObjectScript("go_najentus_spine") { }

+

+    bool OnGossipHello(Player* player, GameObject* go) override

+    {

+        if (InstanceScript* instance = go->GetInstanceScript())

+            if (Creature* Najentus = ObjectAccessor::GetCreature(*go, instance->GetGuidData(DATA_HIGH_WARLORD_NAJENTUS)))

+                if (ENSURE_AI(boss_najentus::boss_najentusAI, Najentus->AI())->RemoveImpalingSpine())

+                {

+                    player->CastSpell(player, SPELL_CREATE_NAJENTUS_SPINE, true);

+                    go->Delete();

+                }

+        return true;

+    }

+

+};

+

+void AddSC_boss_najentus()

+{

+    new boss_najentus();

+    new go_najentus_spine();

+}

diff --git a/src/server/scripts/Outland/BlackTemple/illidari_council.cpp b/src/server/scripts/Outland/BlackTemple/illidari_council.cpp
index 2c6bac4c9d9..a14a4c576cb 100644
--- a/src/server/scripts/Outland/BlackTemple/illidari_council.cpp
+++ b/src/server/scripts/Outland/BlackTemple/illidari_council.cpp
@@ -129,11 +129,9 @@ public:
     {
         npc_blood_elf_council_voice_triggerAI(Creature* creature) : ScriptedAI(creature)
         {
-            for (uint8 i = 0; i < 4; ++i)
-                Council[i] = 0;
         }
 
-        uint64 Council[4];
+        ObjectGuid Council[4];
 
         uint32 EnrageTimer;
         uint32 AggroYellTimer;
@@ -157,10 +155,10 @@ public:
         {
             if (InstanceScript* instance = me->GetInstanceScript())
             {
-                Council[0] = instance->GetData64(DATA_GATHIOS_THE_SHATTERER);
-                Council[1] = instance->GetData64(DATA_VERAS_DARKSHADOW);
-                Council[2] = instance->GetData64(DATA_LADY_MALANDE);
-                Council[3] = instance->GetData64(DATA_HIGH_NETHERMANCER_ZEREVOR);
+                Council[0] = instance->GetGuidData(DATA_GATHIOS_THE_SHATTERER);
+                Council[1] = instance->GetGuidData(DATA_VERAS_DARKSHADOW);
+                Council[2] = instance->GetGuidData(DATA_LADY_MALANDE);
+                Council[3] = instance->GetGuidData(DATA_HIGH_NETHERMANCER_ZEREVOR);
             } else TC_LOG_ERROR("scripts", ERROR_INST_DATA);
         }
 
@@ -226,13 +224,11 @@ public:
         npc_illidari_councilAI(Creature* creature) : ScriptedAI(creature)
         {
             instance = creature->GetInstanceScript();
-            for (uint8 i = 0; i < 4; ++i)
-                Council[i] = 0;
         }
 
         InstanceScript* instance;
 
-        uint64 Council[4];
+        ObjectGuid Council[4];
 
         uint32 CheckTimer;
         uint32 EndEventTimer;
@@ -264,7 +260,7 @@ public:
             }
 
             instance->SetBossState(DATA_ILLIDARI_COUNCIL, NOT_STARTED);
-            if (Creature* VoiceTrigger = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_BLOOD_ELF_COUNCIL_VOICE)))
+            if (Creature* VoiceTrigger = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_BLOOD_ELF_COUNCIL_VOICE)))
                 VoiceTrigger->AI()->EnterEvadeMode();
 
             EventBegun = false;
@@ -283,13 +279,13 @@ public:
         {
             if (target && target->IsAlive())
             {
-                Council[0] = instance->GetData64(DATA_GATHIOS_THE_SHATTERER);
-                Council[1] = instance->GetData64(DATA_HIGH_NETHERMANCER_ZEREVOR);
-                Council[2] = instance->GetData64(DATA_LADY_MALANDE);
-                Council[3] = instance->GetData64(DATA_VERAS_DARKSHADOW);
+                Council[0] = instance->GetGuidData(DATA_GATHIOS_THE_SHATTERER);
+                Council[1] = instance->GetGuidData(DATA_HIGH_NETHERMANCER_ZEREVOR);
+                Council[2] = instance->GetGuidData(DATA_LADY_MALANDE);
+                Council[3] = instance->GetGuidData(DATA_VERAS_DARKSHADOW);
 
                 // Start the event for the Voice Trigger
-                if (Creature* VoiceTrigger = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_BLOOD_ELF_COUNCIL_VOICE)))
+                if (Creature* VoiceTrigger = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_BLOOD_ELF_COUNCIL_VOICE)))
                 {
                     ENSURE_AI(npc_blood_elf_council_voice_trigger::npc_blood_elf_council_voice_triggerAI, VoiceTrigger->AI())->LoadCouncilGUIDs();
                     ENSURE_AI(npc_blood_elf_council_voice_trigger::npc_blood_elf_council_voice_triggerAI, VoiceTrigger->AI())->EventStarted = true;
@@ -322,7 +318,7 @@ public:
                 {
                     if (DeathCount > 3)
                     {
-                        if (Creature* VoiceTrigger = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_BLOOD_ELF_COUNCIL_VOICE)))
+                        if (Creature* VoiceTrigger = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_BLOOD_ELF_COUNCIL_VOICE)))
                             VoiceTrigger->DealDamage(VoiceTrigger, VoiceTrigger->GetHealth(), NULL, DIRECT_DAMAGE, SPELL_SCHOOL_MASK_NORMAL, NULL, false);
                         instance->SetBossState(DATA_ILLIDARI_COUNCIL, DONE);
                         //me->SummonCreature(AKAMAID, 746.466980f, 304.394989f, 311.90208f, 6.272870f, TEMPSUMMON_DEAD_DESPAWN, 0);
@@ -379,12 +375,10 @@ struct boss_illidari_councilAI : public ScriptedAI
     boss_illidari_councilAI(Creature* creature) : ScriptedAI(creature)
     {
         instance = creature->GetInstanceScript();
-        for (uint8 i = 0; i < 4; ++i)
-            Council[i] = 0;
         LoadedGUIDs = false;
     }
 
-    uint64 Council[4];
+    ObjectGuid Council[4];
 
     InstanceScript* instance;
 
@@ -392,7 +386,7 @@ struct boss_illidari_councilAI : public ScriptedAI
 
     void EnterCombat(Unit* who) override
     {
-        if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_ILLIDARI_COUNCIL)))
+        if (Creature* controller = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_ILLIDARI_COUNCIL)))
             ENSURE_AI(npc_illidari_council::npc_illidari_councilAI, controller->AI())->StartEvent(who);
         DoZoneInCombat();
         // Load GUIDs on first aggro because the Creature guids are only set as the creatures are created in world-
@@ -436,10 +430,10 @@ struct boss_illidari_councilAI : public ScriptedAI
 
     void LoadGUIDs()
     {
-        Council[0] = instance->GetData64(DATA_LADY_MALANDE);
-        Council[1] = instance->GetData64(DATA_HIGH_NETHERMANCER_ZEREVOR);
-        Council[2] = instance->GetData64(DATA_GATHIOS_THE_SHATTERER);
-        Council[3] = instance->GetData64(DATA_VERAS_DARKSHADOW);
+        Council[0] = instance->GetGuidData(DATA_LADY_MALANDE);
+        Council[1] = instance->GetGuidData(DATA_HIGH_NETHERMANCER_ZEREVOR);
+        Council[2] = instance->GetGuidData(DATA_GATHIOS_THE_SHATTERER);
+        Council[3] = instance->GetGuidData(DATA_VERAS_DARKSHADOW);
 
         LoadedGUIDs = true;
     }
diff --git a/src/server/scripts/Outland/BlackTemple/instance_black_temple.cpp b/src/server/scripts/Outland/BlackTemple/instance_black_temple.cpp
index 55ad45597ea..7067ca659d3 100644
--- a/src/server/scripts/Outland/BlackTemple/instance_black_temple.cpp
+++ b/src/server/scripts/Outland/BlackTemple/instance_black_temple.cpp
@@ -47,23 +47,6 @@ class instance_black_temple : public InstanceMapScript
                 SetHeaders(DataHeader);
                 SetBossNumber(EncounterCount);
                 LoadDoorData(doorData);
-
-                NajentusGUID                = 0;
-                SupremusGUID                = 0;
-                ShadeOfAkamaGUID            = 0;
-                AkamaShadeGUID              = 0;
-                AkamaGUID                   = 0;
-                GathiosTheShattererGUID     = 0;
-                HighNethermancerZerevorGUID = 0;
-                LadyMalandeGUID             = 0;
-                VerasDarkshadowGUID         = 0;
-                IllidariCouncilGUID         = 0;
-                BloodElfCouncilVoiceGUID    = 0;
-                IllidanStormrageGUID        = 0;
-
-                IllidanGateGUID             = 0;
-
-                memset(IllidanDoorGUIDs, 0, 2 * sizeof(uint64));
             }
 
             void OnCreatureCreate(Creature* creature) override
@@ -162,7 +145,7 @@ class instance_black_temple : public InstanceMapScript
                 }
             }
 
-            uint64 GetData64(uint32 type) const override
+            ObjectGuid GetGuidData(uint32 type) const override
             {
                 switch (type)
                 {
@@ -200,28 +183,28 @@ class instance_black_temple : public InstanceMapScript
                         break;
                 }
 
-                return 0;
+                return ObjectGuid::Empty;
             }
 
         protected:
-            uint64 NajentusGUID;
-            uint64 SupremusGUID;
-            uint64 ShadeOfAkamaGUID;
-            uint64 AkamaShadeGUID;
-            uint64 AkamaGUID;
+            ObjectGuid NajentusGUID;
+            ObjectGuid SupremusGUID;
+            ObjectGuid ShadeOfAkamaGUID;
+            ObjectGuid AkamaShadeGUID;
+            ObjectGuid AkamaGUID;
 
-            uint64 GathiosTheShattererGUID;
-            uint64 HighNethermancerZerevorGUID;
-            uint64 LadyMalandeGUID;
-            uint64 VerasDarkshadowGUID;
+            ObjectGuid GathiosTheShattererGUID;
+            ObjectGuid HighNethermancerZerevorGUID;
+            ObjectGuid LadyMalandeGUID;
+            ObjectGuid VerasDarkshadowGUID;
 
-            uint64 IllidariCouncilGUID;
-            uint64 BloodElfCouncilVoiceGUID;
+            ObjectGuid IllidariCouncilGUID;
+            ObjectGuid BloodElfCouncilVoiceGUID;
 
-            uint64 IllidanStormrageGUID;
+            ObjectGuid IllidanStormrageGUID;
 
-            uint64 IllidanGateGUID;
-            uint64 IllidanDoorGUIDs[2];
+            ObjectGuid IllidanGateGUID;
+            ObjectGuid IllidanDoorGUIDs[2];
         };
 
         InstanceScript* GetInstanceScript(InstanceMap* map) const override
diff --git a/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_fathomlord_karathress.cpp b/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_fathomlord_karathress.cpp
index 683efcdbcf0..05db2c12b90 100644
--- a/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_fathomlord_karathress.cpp
+++ b/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_fathomlord_karathress.cpp
@@ -112,9 +112,6 @@ public:
         boss_fathomlord_karathressAI(Creature* creature) : ScriptedAI(creature)
         {
             instance = creature->GetInstanceScript();
-            Advisors[0] = 0;
-            Advisors[1] = 0;
-            Advisors[2] = 0;
         }
 
         InstanceScript* instance;
@@ -125,7 +122,7 @@ public:
 
         bool BlessingOfTides;
 
-        uint64 Advisors[MAX_ADVISORS];
+        ObjectGuid Advisors[MAX_ADVISORS];
 
         void Reset() override
         {
@@ -135,10 +132,10 @@ public:
 
             BlessingOfTides = false;
 
-            uint64 RAdvisors[MAX_ADVISORS];
-            RAdvisors[0] = instance->GetData64(DATA_SHARKKIS);
-            RAdvisors[1] = instance->GetData64(DATA_TIDALVESS);
-            RAdvisors[2] = instance->GetData64(DATA_CARIBDIS);
+            ObjectGuid RAdvisors[MAX_ADVISORS];
+            RAdvisors[0] = instance->GetGuidData(DATA_SHARKKIS);
+            RAdvisors[1] = instance->GetGuidData(DATA_TIDALVESS);
+            RAdvisors[2] = instance->GetGuidData(DATA_CARIBDIS);
             // Respawn of the 3 Advisors
             for (uint8 i = 0; i < MAX_ADVISORS; ++i)
                 if (RAdvisors[i])
@@ -175,9 +172,9 @@ public:
 
         void GetAdvisors()
         {
-            Advisors[0] = instance->GetData64(DATA_SHARKKIS);
-            Advisors[1] = instance->GetData64(DATA_TIDALVESS);
-            Advisors[2] = instance->GetData64(DATA_CARIBDIS);
+            Advisors[0] = instance->GetGuidData(DATA_SHARKKIS);
+            Advisors[1] = instance->GetGuidData(DATA_TIDALVESS);
+            Advisors[2] = instance->GetGuidData(DATA_CARIBDIS);
         }
 
         void StartEvent(Unit* who)
@@ -187,7 +184,7 @@ public:
             Talk(SAY_AGGRO);
             DoZoneInCombat();
 
-            instance->SetData64(DATA_KARATHRESSEVENT_STARTER, who->GetGUID());
+            instance->SetGuidData(DATA_KARATHRESSEVENT_STARTER, who->GetGUID());
             instance->SetData(DATA_KARATHRESSEVENT, IN_PROGRESS);
         }
 
@@ -216,7 +213,7 @@ public:
             //Only if not incombat check if the event is started
             if (!me->IsInCombat() && instance->GetData(DATA_KARATHRESSEVENT))
             {
-                if (Unit* target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_KARATHRESSEVENT_STARTER)))
+                if (Unit* target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_KARATHRESSEVENT_STARTER)))
                 {
                     AttackStart(target);
                     GetAdvisors();
@@ -308,7 +305,6 @@ public:
         boss_fathomguard_sharkkisAI(Creature* creature) : ScriptedAI(creature)
         {
             instance = creature->GetInstanceScript();
-            SummonedPet = 0;
         }
 
         InstanceScript* instance;
@@ -320,7 +316,7 @@ public:
 
         bool pet;
 
-        uint64 SummonedPet;
+        ObjectGuid SummonedPet;
 
         void Reset() override
         {
@@ -335,20 +331,20 @@ public:
             if (Pet && Pet->IsAlive())
                 Pet->DealDamage(Pet, Pet->GetHealth(), NULL, DIRECT_DAMAGE, SPELL_SCHOOL_MASK_NORMAL, NULL, false);
 
-            SummonedPet = 0;
+            SummonedPet.Clear();
 
             instance->SetData(DATA_KARATHRESSEVENT, NOT_STARTED);
         }
 
         void JustDied(Unit* /*killer*/) override
         {
-            if (Creature* Karathress = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_KARATHRESS)))
+            if (Creature* Karathress = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_KARATHRESS)))
                 ENSURE_AI(boss_fathomlord_karathress::boss_fathomlord_karathressAI, Karathress->AI())->EventSharkkisDeath();
         }
 
         void EnterCombat(Unit* who) override
         {
-            instance->SetData64(DATA_KARATHRESSEVENT_STARTER, who->GetGUID());
+            instance->SetGuidData(DATA_KARATHRESSEVENT_STARTER, who->GetGUID());
             instance->SetData(DATA_KARATHRESSEVENT, IN_PROGRESS);
         }
 
@@ -357,7 +353,7 @@ public:
             //Only if not incombat check if the event is started
             if (!me->IsInCombat() && instance->GetData(DATA_KARATHRESSEVENT))
             {
-                if (Unit* target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_KARATHRESSEVENT_STARTER)))
+                if (Unit* target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_KARATHRESSEVENT_STARTER)))
                     AttackStart(target);
             }
 
@@ -468,13 +464,13 @@ public:
 
         void JustDied(Unit* /*killer*/) override
         {
-            if (Creature* Karathress = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_KARATHRESS)))
+            if (Creature* Karathress = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_KARATHRESS)))
                 ENSURE_AI(boss_fathomlord_karathress::boss_fathomlord_karathressAI, Karathress->AI())->EventTidalvessDeath();
         }
 
         void EnterCombat(Unit* who) override
         {
-            instance->SetData64(DATA_KARATHRESSEVENT_STARTER, who->GetGUID());
+            instance->SetGuidData(DATA_KARATHRESSEVENT_STARTER, who->GetGUID());
             instance->SetData(DATA_KARATHRESSEVENT, IN_PROGRESS);
             DoCast(me, SPELL_WINDFURY_WEAPON);
         }
@@ -484,7 +480,7 @@ public:
             //Only if not incombat check if the event is started
             if (!me->IsInCombat() && instance->GetData(DATA_KARATHRESSEVENT))
             {
-                if (Unit* target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_KARATHRESSEVENT_STARTER)))
+                if (Unit* target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_KARATHRESSEVENT_STARTER)))
                     AttackStart(target);
             }
 
@@ -515,7 +511,7 @@ public:
             if (Spitfire_Timer <= diff)
             {
                 DoCast(me, SPELL_SPITFIRE_TOTEM);
-                if (Unit* SpitfireTotem = ObjectAccessor::GetUnit(*me, CREATURE_SPITFIRE_TOTEM))
+                if (Unit* SpitfireTotem = me->FindNearestCreature(CREATURE_SPITFIRE_TOTEM, 100.0f))
                     SpitfireTotem->ToCreature()->AI()->AttackStart(me->GetVictim());
 
                 Spitfire_Timer = 60000;
@@ -584,13 +580,13 @@ public:
 
         void JustDied(Unit* /*killer*/) override
         {
-            if (Creature* Karathress = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_KARATHRESS)))
+            if (Creature* Karathress = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_KARATHRESS)))
                 ENSURE_AI(boss_fathomlord_karathress::boss_fathomlord_karathressAI, Karathress->AI())->EventCaribdisDeath();
         }
 
         void EnterCombat(Unit* who) override
         {
-            instance->SetData64(DATA_KARATHRESSEVENT_STARTER, who->GetGUID());
+            instance->SetGuidData(DATA_KARATHRESSEVENT_STARTER, who->GetGUID());
             instance->SetData(DATA_KARATHRESSEVENT, IN_PROGRESS);
         }
 
@@ -599,7 +595,7 @@ public:
             //Only if not incombat check if the event is started
             if (!me->IsInCombat() && instance->GetData(DATA_KARATHRESSEVENT))
             {
-                if (Unit* target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_KARATHRESSEVENT_STARTER)))
+                if (Unit* target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_KARATHRESSEVENT_STARTER)))
                     AttackStart(target);
             }
 
@@ -675,13 +671,13 @@ public:
             switch (rand32() % 4)
             {
             case 0:
-                unit = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_KARATHRESS));
+                unit = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_KARATHRESS));
                 break;
             case 1:
-                unit = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_SHARKKIS));
+                unit = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_SHARKKIS));
                 break;
             case 2:
-                unit = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_TIDALVESS));
+                unit = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_TIDALVESS));
                 break;
             case 3:
                 unit = me;
diff --git a/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_hydross_the_unstable.cpp b/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_hydross_the_unstable.cpp
index bcde75584fb..cea6a1854a1 100644
--- a/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_hydross_the_unstable.cpp
+++ b/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_hydross_the_unstable.cpp
@@ -94,13 +94,11 @@ public:
         boss_hydross_the_unstableAI(Creature* creature) : ScriptedAI(creature), Summons(me)
         {
             instance = creature->GetInstanceScript();
-            beams[0] = 0;
-            beams[1] = 0;
         }
 
         InstanceScript* instance;
 
-        uint64 beams[2];
+        ObjectGuid beams[2];
         uint32 PosCheck_Timer;
         uint32 MarkOfHydross_Timer;
         uint32 MarkOfCorruption_Timer;
@@ -116,8 +114,8 @@ public:
         void Reset() override
         {
             DeSummonBeams();
-            beams[0] = 0;
-            beams[1] = 0;
+            beams[0].Clear();
+            beams[1].Clear();
             PosCheck_Timer = 2500;
             MarkOfHydross_Timer = 15000;
             MarkOfCorruption_Timer = 15000;
@@ -147,7 +145,7 @@ public:
                 beamer->CastSpell(me, SPELL_BLUE_BEAM, true);
                 beamer->SetDisplayId(11686);  //invisible
                 beamer->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
-                beams[0]=beamer->GetGUID();
+                beams[0] = beamer->GetGUID();
             }
             beamer = me->SummonCreature(ENTRY_BEAM_DUMMY, -219.918f, -371.308f, 22.0042f, 2.73072f, TEMPSUMMON_CORPSE_DESPAWN, 0);
             if (beamer)
@@ -155,7 +153,7 @@ public:
                 beamer->CastSpell(me, SPELL_BLUE_BEAM, true);
                 beamer->SetDisplayId(11686);  //invisible
                 beamer->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
-                beams[1]=beamer->GetGUID();
+                beams[1] = beamer->GetGUID();
             }
         }
         void DeSummonBeams()
diff --git a/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_lady_vashj.cpp b/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_lady_vashj.cpp
index a241f2bea37..4630620c585 100644
--- a/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_lady_vashj.cpp
+++ b/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_lady_vashj.cpp
@@ -151,13 +151,11 @@ public:
             Intro = false;
             JustCreated = true;
             creature->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE); // set it only once on Creature create (no need do intro if wiped)
-            for (uint8 i = 0; i < 4; ++i)
-                ShieldGeneratorChannel[i] = 0;
         }
 
         InstanceScript* instance;
 
-        uint64 ShieldGeneratorChannel[4];
+        ObjectGuid ShieldGeneratorChannel[4];
 
         uint32 AggroTimer;
         uint32 ShockBlastTimer;
@@ -210,7 +208,7 @@ public:
                     if (Unit* remo = ObjectAccessor::GetUnit(*me, ShieldGeneratorChannel[i]))
                     {
                         remo->setDeathState(JUST_DIED);
-                        ShieldGeneratorChannel[i] = 0;
+                        ShieldGeneratorChannel[i].Clear();
                     }
                 }
             }
@@ -565,7 +563,7 @@ public:
         uint32 Phase;
         float X, Y, Z;
 
-        uint64 VashjGUID;
+        ObjectGuid VashjGUID;
 
         void Reset() override
         {
@@ -589,7 +587,7 @@ public:
                 }
             }
 
-            VashjGUID = instance->GetData64(DATA_LADYVASHJ);
+            VashjGUID = instance->GetGuidData(DATA_LADYVASHJ);
         }
 
         void EnterCombat(Unit* /*who*/) override { }
@@ -662,7 +660,7 @@ public:
 
         void JustDied(Unit* /*killer*/) override
         {
-            if (Creature* vashj = ObjectAccessor::GetCreature((*me), instance->GetData64(DATA_LADYVASHJ)))
+            if (Creature* vashj = ObjectAccessor::GetCreature((*me), instance->GetGuidData(DATA_LADYVASHJ)))
                 ENSURE_AI(boss_lady_vashj::boss_lady_vashjAI, vashj->AI())->EventTaintedElementalDeath();
         }
 
@@ -778,7 +776,7 @@ public:
             if (CheckTimer <= diff)
             {
                 // check if vashj is death
-                Unit* Vashj = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_LADYVASHJ));
+                Unit* Vashj = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_LADYVASHJ));
                 if (!Vashj || !Vashj->IsAlive() || ENSURE_AI(boss_lady_vashj::boss_lady_vashjAI, Vashj->ToCreature()->AI())->Phase != 3)
                 {
                     // remove
@@ -833,7 +831,7 @@ public:
         {
             if (CheckTimer <= diff)
             {
-                Unit* vashj = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_LADYVASHJ));
+                Unit* vashj = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_LADYVASHJ));
 
                 if (vashj && vashj->IsAlive())
                 {
@@ -865,7 +863,7 @@ public:
             return true;
         }
 
-        Creature* vashj = ObjectAccessor::GetCreature((*player), instance->GetData64(DATA_LADYVASHJ));
+        Creature* vashj = ObjectAccessor::GetCreature((*player), instance->GetGuidData(DATA_LADYVASHJ));
         if (vashj && (ENSURE_AI(boss_lady_vashj::boss_lady_vashjAI, vashj->AI())->Phase == 2))
         {
             if (GameObject* gObj = targets.GetGOTarget())
diff --git a/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_leotheras_the_blind.cpp b/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_leotheras_the_blind.cpp
index fb5b4579942..9f51155b334 100644
--- a/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_leotheras_the_blind.cpp
+++ b/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_leotheras_the_blind.cpp
@@ -83,13 +83,12 @@ public:
     {
         npc_inner_demonAI(Creature* creature) : ScriptedAI(creature)
         {
-            victimGUID = 0;
         }
 
         uint32 ShadowBolt_Timer;
 
         uint32 Link_Timer;
-        uint64 victimGUID;
+        ObjectGuid victimGUID;
 
         void Reset() override
         {
@@ -97,17 +96,17 @@ public:
             Link_Timer = 1000;
         }
 
-        void SetGUID(uint64 guid, int32 id/* = 0 */) override
+        void SetGUID(ObjectGuid guid, int32 id/* = 0 */) override
         {
             if (id == INNER_DEMON_VICTIM)
                 victimGUID = guid;
         }
 
-        uint64 GetGUID(int32 id/* = 0 */) const override
+        ObjectGuid GetGUID(int32 id/* = 0 */) const override
         {
             if (id == INNER_DEMON_VICTIM)
                 return victimGUID;
-            return 0;
+            return ObjectGuid::Empty;
         }
 
         void JustDied(Unit* /*killer*/) override
@@ -190,10 +189,6 @@ public:
         {
             creature->GetPosition(x, y, z);
             instance = creature->GetInstanceScript();
-            Demon = 0;
-
-            for (uint8 i = 0; i < 3; ++i)//clear guids
-                SpellBinderGUID[i] = 0;
         }
 
         InstanceScript* instance;
@@ -213,10 +208,10 @@ public:
         bool EnrageUsed;
         float x, y, z;
 
-        uint64 InnderDemon[5];
+        ObjectGuid InnderDemon[5];
         uint32 InnerDemon_Count;
-        uint64 Demon;
-        uint64 SpellBinderGUID[3];
+        ObjectGuid Demon;
+        ObjectGuid SpellBinderGUID[3];
 
         void Reset() override
         {
@@ -317,10 +312,10 @@ public:
                 // and reseting equipment
                 me->LoadEquipment();
 
-                if (instance->GetData64(DATA_LEOTHERAS_EVENT_STARTER))
+                if (instance->GetGuidData(DATA_LEOTHERAS_EVENT_STARTER))
                 {
                     Unit* victim = NULL;
-                    victim = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_LEOTHERAS_EVENT_STARTER));
+                    victim = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_LEOTHERAS_EVENT_STARTER));
                     if (victim)
                         me->getThreatManager().addThreat(victim, 1);
                     StartEvent();
@@ -349,13 +344,12 @@ public:
             {
                 if (InnderDemon[i])
                 {
-                        //delete creature
-                        Creature* creature = ObjectAccessor::GetCreature((*me), InnderDemon[i]);
-                        if (creature && creature->IsAlive())
-                        {
-                            creature->DespawnOrUnsummon();
-                        }
-                        InnderDemon[i] = 0;
+                    //delete creature
+                    Creature* creature = ObjectAccessor::GetCreature((*me), InnderDemon[i]);
+                    if (creature && creature->IsAlive())
+                        creature->DespawnOrUnsummon();
+
+                    InnderDemon[i].Clear();
                 }
             }
 
@@ -364,9 +358,9 @@ public:
 
         void CastConsumingMadness() //remove this once SPELL_INSIDIOUS_WHISPER is supported by core
         {
-            for (uint8 i=0; i<5; ++i)
+            for (uint8 i = 0; i < 5; ++i)
             {
-                if (InnderDemon[i] > 0)
+                if (InnderDemon[i])
                 {
                     Creature* unit = ObjectAccessor::GetCreature((*me), InnderDemon[i]);
                     if (unit && unit->IsAlive())
@@ -481,7 +475,7 @@ public:
                     if (SwitchToDemon_Timer <= diff)
                     {
                         //switch to demon form
-                        me->RemoveAurasDueToSpell(SPELL_WHIRLWIND, 0);
+                        me->RemoveAurasDueToSpell(SPELL_WHIRLWIND);
                         me->SetDisplayId(MODEL_DEMON);
                         Talk(SAY_SWITCH_TO_DEMON);
                         me->SetUInt32Value(UNIT_VIRTUAL_ITEM_SLOT_ID  , 0);
@@ -576,8 +570,8 @@ public:
                 Creature* Copy = NULL;
                 Copy = DoSpawnCreature(DEMON_FORM, 0, 0, 0, 0, TEMPSUMMON_TIMED_DESPAWN_OUT_OF_COMBAT, 6000);
                 if (Copy)
-                 {
-                     Demon = Copy->GetGUID();
+                {
+                    Demon = Copy->GetGUID();
                     if (me->GetVictim())
                         Copy->AI()->AttackStart(me->GetVictim());
                 }
@@ -682,13 +676,12 @@ public:
         npc_greyheart_spellbinderAI(Creature* creature) : ScriptedAI(creature)
         {
             instance = creature->GetInstanceScript();
-            leotherasGUID = 0;
             AddedBanish = false;
         }
 
         InstanceScript* instance;
 
-        uint64 leotherasGUID;
+        ObjectGuid leotherasGUID;
 
         uint32 Mindblast_Timer;
         uint32 Earthshock_Timer;
@@ -700,7 +693,7 @@ public:
             Mindblast_Timer  = urand(3000, 8000);
             Earthshock_Timer = urand(5000, 10000);
 
-            instance->SetData64(DATA_LEOTHERAS_EVENT_STARTER, 0);
+            instance->SetGuidData(DATA_LEOTHERAS_EVENT_STARTER, ObjectGuid::Empty);
             Creature* leotheras = ObjectAccessor::GetCreature(*me, leotherasGUID);
             if (leotheras && leotheras->IsAlive())
                 ENSURE_AI(boss_leotheras_the_blind::boss_leotheras_the_blindAI, leotheras->AI())->CheckChannelers(/*false*/);
@@ -709,7 +702,7 @@ public:
         void EnterCombat(Unit* who) override
         {
             me->InterruptNonMeleeSpells(false);
-            instance->SetData64(DATA_LEOTHERAS_EVENT_STARTER, who->GetGUID());
+            instance->SetGuidData(DATA_LEOTHERAS_EVENT_STARTER, who->GetGUID());
         }
 
         void JustRespawned() override
@@ -734,12 +727,12 @@ public:
         void UpdateAI(uint32 diff) override
         {
             if (!leotherasGUID)
-                leotherasGUID = instance->GetData64(DATA_LEOTHERAS);
+                leotherasGUID = instance->GetGuidData(DATA_LEOTHERAS);
 
-            if (!me->IsInCombat() && instance->GetData64(DATA_LEOTHERAS_EVENT_STARTER))
+            if (!me->IsInCombat() && instance->GetGuidData(DATA_LEOTHERAS_EVENT_STARTER))
             {
                 Unit* victim = NULL;
-                victim = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_LEOTHERAS_EVENT_STARTER));
+                victim = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_LEOTHERAS_EVENT_STARTER));
                 if (victim)
                     AttackStart(victim);
             }
@@ -750,7 +743,7 @@ public:
                 return;
             }
 
-            if (!instance->GetData64(DATA_LEOTHERAS_EVENT_STARTER))
+            if (!instance->GetGuidData(DATA_LEOTHERAS_EVENT_STARTER))
             {
                 EnterEvadeMode();
                 return;
diff --git a/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_morogrim_tidewalker.cpp b/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_morogrim_tidewalker.cpp
index d501b919614..0a538ac0c39 100644
--- a/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_morogrim_tidewalker.cpp
+++ b/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_morogrim_tidewalker.cpp
@@ -215,8 +215,8 @@ public:
                 {
                     //Teleport 4 players under the waterfalls
                     Unit* target;
-                    std::set<uint64> list;
-                    std::set<uint64>::const_iterator itr;
+                    GuidSet targets;
+                    GuidSet::const_iterator itr;
                     for (uint8 i = 0; i < 4; ++i)
                     {
                         counter = 0;
@@ -226,13 +226,13 @@ public:
                             if (counter < Playercount)
                                 break;
                             if (target)
-                                itr = list.find(target->GetGUID());
+                                itr = targets.find(target->GetGUID());
                             ++counter;
-                        } while (itr != list.end());
+                        } while (itr != targets.end());
 
                         if (target)
                         {
-                            list.insert(target->GetGUID());
+                            targets.insert(target->GetGUID());
                             ApplyWateryGrave(target, i);
                         }
                     }
@@ -253,8 +253,8 @@ public:
                 if (WateryGlobules_Timer <= diff)
                 {
                     Unit* pGlobuleTarget;
-                    std::set<uint64> globulelist;
-                    std::set<uint64>::const_iterator itr;
+                    GuidSet globules;
+                    GuidSet::const_iterator itr;
                     for (uint8 g = 0; g < 4; g++)  //one unit can't cast more than one spell per update, so some players have to cast for us XD
                     {
                         counter = 0;
@@ -262,14 +262,14 @@ public:
                         {
                             pGlobuleTarget = SelectTarget(SELECT_TARGET_RANDOM, 0, 50, true);
                             if (pGlobuleTarget)
-                                itr = globulelist.find(pGlobuleTarget->GetGUID());
+                                itr = globules.find(pGlobuleTarget->GetGUID());
                             if (counter > Playercount)
                                 break;
                             ++counter;
-                        } while (itr != globulelist.end());
+                        } while (itr != globules.end());
                         if (pGlobuleTarget)
                         {
-                            globulelist.insert(pGlobuleTarget->GetGUID());
+                            globules.insert(pGlobuleTarget->GetGUID());
                             pGlobuleTarget->CastSpell(pGlobuleTarget, globulespell[g], true);
                         }
                     }
diff --git a/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/instance_serpent_shrine.cpp b/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/instance_serpent_shrine.cpp
index a3577f40d68..3fb090ab94c 100644
--- a/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/instance_serpent_shrine.cpp
+++ b/src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/instance_serpent_shrine.cpp
@@ -94,20 +94,6 @@ class instance_serpent_shrine : public InstanceMapScript
             {
                 memset(&m_auiEncounter, 0, sizeof(m_auiEncounter));
 
-                LurkerBelow = 0;
-                Sharkkis = 0;
-                Tidalvess = 0;
-                Caribdis = 0;
-                LadyVashj = 0;
-                Karathress = 0;
-                KarathressEvent_Starter = 0;
-                LeotherasTheBlind = 0;
-                LeotherasEventStarter = 0;
-
-                ControlConsole = 0;
-                BridgePart[0] = 0;
-                BridgePart[1] = 0;
-                BridgePart[2] = 0;
                 StrangePool = 0;
                 Water = WATERSTATE_FRENZY;
 
@@ -247,7 +233,7 @@ class instance_serpent_shrine : public InstanceMapScript
                 }
             }
 
-            void SetData64(uint32 type, uint64 data) override
+            void SetGuidData(uint32 type, ObjectGuid data) override
             {
                 if (type == DATA_KARATHRESSEVENT_STARTER)
                     KarathressEvent_Starter = data;
@@ -255,7 +241,7 @@ class instance_serpent_shrine : public InstanceMapScript
                     LeotherasEventStarter = data;
             }
 
-            uint64 GetData64(uint32 identifier) const override
+            ObjectGuid GetGuidData(uint32 identifier) const override
             {
                 switch (identifier)
                 {
@@ -280,7 +266,7 @@ class instance_serpent_shrine : public InstanceMapScript
                     default:
                         break;
                 }
-                return 0;
+                return ObjectGuid::Empty;
             }
 
             void SetData(uint32 type, uint32 data) override
@@ -297,7 +283,6 @@ class instance_serpent_shrine : public InstanceMapScript
                             HandleGameObject(BridgePart[0], true);
                             HandleGameObject(BridgePart[0], true);
                         }
-                        ControlConsole = data;
                         break;
                     case DATA_TRASH:
                         if (data == 1 && TrashCount < MIN_KILLS)
@@ -424,18 +409,18 @@ class instance_serpent_shrine : public InstanceMapScript
             }
 
         private:
-            uint64 LurkerBelow;
-            uint64 Sharkkis;
-            uint64 Tidalvess;
-            uint64 Caribdis;
-            uint64 LadyVashj;
-            uint64 Karathress;
-            uint64 KarathressEvent_Starter;
-            uint64 LeotherasTheBlind;
-            uint64 LeotherasEventStarter;
-
-            uint64 ControlConsole;
-            uint64 BridgePart[3];
+            ObjectGuid LurkerBelow;
+            ObjectGuid Sharkkis;
+            ObjectGuid Tidalvess;
+            ObjectGuid Caribdis;
+            ObjectGuid LadyVashj;
+            ObjectGuid Karathress;
+            ObjectGuid KarathressEvent_Starter;
+            ObjectGuid LeotherasTheBlind;
+            ObjectGuid LeotherasEventStarter;
+
+            ObjectGuid ControlConsole;
+            ObjectGuid BridgePart[3];
             uint32 StrangePool;
             uint32 FishingTimer;
             uint32 WaterCheckTimer;
diff --git a/src/server/scripts/Outland/CoilfangReservoir/SteamVault/boss_mekgineer_steamrigger.cpp b/src/server/scripts/Outland/CoilfangReservoir/SteamVault/boss_mekgineer_steamrigger.cpp
index 78a14539e25..3207727b5d1 100644
--- a/src/server/scripts/Outland/CoilfangReservoir/SteamVault/boss_mekgineer_steamrigger.cpp
+++ b/src/server/scripts/Outland/CoilfangReservoir/SteamVault/boss_mekgineer_steamrigger.cpp
@@ -226,7 +226,7 @@ public:
             {
                 if (instance->GetBossState(DATA_MEKGINEER_STEAMRIGGER) == IN_PROGRESS)
                 {
-                    if (Creature* mekgineer = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_MEKGINEER_STEAMRIGGER)))
+                    if (Creature* mekgineer = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_MEKGINEER_STEAMRIGGER)))
                     {
                         if (me->IsWithinDistInMap(mekgineer, MAX_REPAIR_RANGE))
                         {
diff --git a/src/server/scripts/Outland/CoilfangReservoir/SteamVault/instance_steam_vault.cpp b/src/server/scripts/Outland/CoilfangReservoir/SteamVault/instance_steam_vault.cpp
index 40bc8dd69d7..f0884e83baa 100644
--- a/src/server/scripts/Outland/CoilfangReservoir/SteamVault/instance_steam_vault.cpp
+++ b/src/server/scripts/Outland/CoilfangReservoir/SteamVault/instance_steam_vault.cpp
@@ -58,11 +58,6 @@ class instance_steam_vault : public InstanceMapScript
                 SetHeaders(DataHeader);
                 SetBossNumber(EncounterCount);
 
-                ThespiaGUID          = 0;
-                MekgineerGUID        = 0;
-                KalithreshGUID       = 0;
-
-                MainChambersDoorGUID = 0;
                 DistillerState       = 0;
             }
 
@@ -96,7 +91,7 @@ class instance_steam_vault : public InstanceMapScript
                 }
             }
 
-            uint64 GetData64(uint32 type) const override
+            ObjectGuid GetGuidData(uint32 type) const override
             {
                 switch (type)
                 {
@@ -109,7 +104,7 @@ class instance_steam_vault : public InstanceMapScript
                     default:
                         break;
                 }
-                return 0;
+                return ObjectGuid::Empty;
             }
 
             void SetData(uint32 type, uint32 data) override
@@ -158,11 +153,11 @@ class instance_steam_vault : public InstanceMapScript
             }
 
         protected:
-            uint64 ThespiaGUID;
-            uint64 MekgineerGUID;
-            uint64 KalithreshGUID;
+            ObjectGuid ThespiaGUID;
+            ObjectGuid MekgineerGUID;
+            ObjectGuid KalithreshGUID;
 
-            uint64 MainChambersDoorGUID;
+            ObjectGuid MainChambersDoorGUID;
             uint8 DistillerState;
         };
 
diff --git a/src/server/scripts/Outland/CoilfangReservoir/TheUnderbog/boss_the_black_stalker.cpp b/src/server/scripts/Outland/CoilfangReservoir/TheUnderbog/boss_the_black_stalker.cpp
index 7090a693876..d3b11d481fb 100644
--- a/src/server/scripts/Outland/CoilfangReservoir/TheUnderbog/boss_the_black_stalker.cpp
+++ b/src/server/scripts/Outland/CoilfangReservoir/TheUnderbog/boss_the_black_stalker.cpp
@@ -54,7 +54,7 @@ public:
 
     struct boss_the_black_stalkerAI : public ScriptedAI
     {
-        boss_the_black_stalkerAI(Creature* creature) : ScriptedAI(creature)
+        boss_the_black_stalkerAI(Creature* creature) : ScriptedAI(creature), Striders(creature)
         {
         }
 
@@ -62,11 +62,11 @@ public:
         uint32 Levitate_Timer;
         uint32 ChainLightning_Timer;
         uint32 StaticCharge_Timer;
-        uint64 LevitatedTarget;
+        ObjectGuid LevitatedTarget;
         uint32 LevitatedTarget_Timer;
         bool InAir;
         uint32 check_Timer;
-        std::list<uint64> Striders;
+        SummonList Striders;
 
         void Reset() override
         {
@@ -75,9 +75,9 @@ public:
             StaticCharge_Timer = 10000;
             SporeStriders_Timer = 10000 + rand32() % 5000;
             check_Timer = 5000;
-            LevitatedTarget = 0;
+            LevitatedTarget.Clear();
             LevitatedTarget_Timer = 0;
-            Striders.clear();
+            Striders.DespawnAll();
         }
 
         void EnterCombat(Unit* /*who*/) override { }
@@ -86,7 +86,7 @@ public:
         {
             if (summon && summon->GetEntry() == ENTRY_SPORE_STRIDER)
             {
-                Striders.push_back(summon->GetGUID());
+                Striders.Summon(summon);
                 if (Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 1))
                     summon->AI()->AttackStart(target);
                 else
@@ -97,9 +97,7 @@ public:
 
         void JustDied(Unit* /*killer*/) override
         {
-            for (std::list<uint64>::const_iterator i = Striders.begin(); i != Striders.end(); ++i)
-                if (Creature* strider = ObjectAccessor::GetCreature(*me, *i))
-                    strider->DisappearAndDie();
+            Striders.DespawnAll();
         }
 
         void UpdateAI(uint32 diff) override
@@ -136,13 +134,13 @@ public:
                     {
                         if (!target->HasAura(SPELL_LEVITATE))
                         {
-                            LevitatedTarget = 0;
+                            LevitatedTarget.Clear();
                             return;
                         }
                         if (InAir)
                         {
                             target->AddAura(SPELL_SUSPENSION, target);
-                            LevitatedTarget = 0;
+                            LevitatedTarget.Clear();
                         }
                         else
                         {
@@ -152,7 +150,7 @@ public:
                         }
                     }
                     else
-                        LevitatedTarget = 0;
+                        LevitatedTarget.Clear();
                 } else LevitatedTarget_Timer -= diff;
             }
             if (Levitate_Timer <= diff)
diff --git a/src/server/scripts/Outland/GruulsLair/boss_high_king_maulgar.cpp b/src/server/scripts/Outland/GruulsLair/boss_high_king_maulgar.cpp
index 3b7bb0c4312..0fcc7310d07 100644
--- a/src/server/scripts/Outland/GruulsLair/boss_high_king_maulgar.cpp
+++ b/src/server/scripts/Outland/GruulsLair/boss_high_king_maulgar.cpp
@@ -250,7 +250,7 @@ public:
 
         void JustDied(Unit* /*killer*/) override
         {
-            if (Creature* maulgar = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_MAULGAR)))
+            if (Creature* maulgar = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_MAULGAR)))
                 maulgar->AI()->DoAction(ACTION_ADD_DEATH);
 
             instance->SetBossState(DATA_MAULGAR, DONE);
@@ -333,7 +333,7 @@ public:
 
         void JustDied(Unit* /*killer*/) override
         {
-            if (Creature* maulgar = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_MAULGAR)))
+            if (Creature* maulgar = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_MAULGAR)))
                 maulgar->AI()->DoAction(ACTION_ADD_DEATH);
 
             instance->SetBossState(DATA_MAULGAR, DONE);
@@ -419,7 +419,7 @@ public:
 
         void JustDied(Unit* /*killer*/) override
         {
-            if (Creature* maulgar = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_MAULGAR)))
+            if (Creature* maulgar = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_MAULGAR)))
                 maulgar->AI()->DoAction(ACTION_ADD_DEATH);
 
             instance->SetBossState(DATA_MAULGAR, DONE);
@@ -496,7 +496,7 @@ public:
 
         void JustDied(Unit* /*killer*/) override
         {
-            if (Creature* maulgar = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_MAULGAR)))
+            if (Creature* maulgar = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_MAULGAR)))
                 maulgar->AI()->DoAction(ACTION_ADD_DEATH);
 
             instance->SetBossState(DATA_MAULGAR, DONE);
diff --git a/src/server/scripts/Outland/GruulsLair/instance_gruuls_lair.cpp b/src/server/scripts/Outland/GruulsLair/instance_gruuls_lair.cpp
index 3337ce47fd6..5f8bafc736b 100644
--- a/src/server/scripts/Outland/GruulsLair/instance_gruuls_lair.cpp
+++ b/src/server/scripts/Outland/GruulsLair/instance_gruuls_lair.cpp
@@ -48,8 +48,6 @@ class instance_gruuls_lair : public InstanceMapScript
                 SetBossNumber(EncounterCount);
                 LoadDoorData(doorData);
                 LoadMinionData(minionData);
-
-                MaulgarGUID = 0;
             }
 
             void OnCreatureCreate(Creature* creature) override
@@ -112,7 +110,7 @@ class instance_gruuls_lair : public InstanceMapScript
                 }
             }
 
-            uint64 GetData64(uint32 type) const override
+            ObjectGuid GetGuidData(uint32 type) const override
             {
                 switch (type)
                 {
@@ -121,11 +119,11 @@ class instance_gruuls_lair : public InstanceMapScript
                     default:
                         break;
                 }
-                return 0;
+                return ObjectGuid::Empty;
             }
 
         protected:
-            uint64 MaulgarGUID;
+            ObjectGuid MaulgarGUID;
         };
 
         InstanceScript* GetInstanceScript(InstanceMap* map) const override
diff --git a/src/server/scripts/Outland/HellfireCitadel/BloodFurnace/boss_broggok.cpp b/src/server/scripts/Outland/HellfireCitadel/BloodFurnace/boss_broggok.cpp
index 15c660b4ad7..a0673d4aced 100644
--- a/src/server/scripts/Outland/HellfireCitadel/BloodFurnace/boss_broggok.cpp
+++ b/src/server/scripts/Outland/HellfireCitadel/BloodFurnace/boss_broggok.cpp
@@ -133,7 +133,7 @@ class go_broggok_lever : public GameObjectScript
                 if (instance->GetBossState(DATA_BROGGOK) != DONE && instance->GetBossState(DATA_BROGGOK) != IN_PROGRESS)
                 {
                     instance->SetBossState(DATA_BROGGOK, IN_PROGRESS);
-                    if (Creature* broggok = ObjectAccessor::GetCreature(*go, instance->GetData64(DATA_BROGGOK)))
+                    if (Creature* broggok = ObjectAccessor::GetCreature(*go, instance->GetGuidData(DATA_BROGGOK)))
                         broggok->AI()->DoAction(ACTION_PREPARE_BROGGOK);
                 }
 
diff --git a/src/server/scripts/Outland/HellfireCitadel/BloodFurnace/boss_kelidan_the_breaker.cpp b/src/server/scripts/Outland/HellfireCitadel/BloodFurnace/boss_kelidan_the_breaker.cpp
index b2f199008d0..da7074b131f 100644
--- a/src/server/scripts/Outland/HellfireCitadel/BloodFurnace/boss_kelidan_the_breaker.cpp
+++ b/src/server/scripts/Outland/HellfireCitadel/BloodFurnace/boss_kelidan_the_breaker.cpp
@@ -65,8 +65,6 @@ class boss_kelidan_the_breaker : public CreatureScript
         {
             boss_kelidan_the_breakerAI(Creature* creature) : BossAI(creature, DATA_KELIDAN_THE_BREAKER)
             {
-                for (uint8 i = 0; i < 5; ++i)
-                    Channelers[i] = 0;
             }
 
             uint32 ShadowVolley_Timer;
@@ -76,7 +74,7 @@ class boss_kelidan_the_breaker : public CreatureScript
             uint32 check_Timer;
             bool Firenova;
             bool addYell;
-            uint64 Channelers[5];
+            ObjectGuid Channelers[5];
 
             void Reset() override
             {
@@ -116,7 +114,7 @@ class boss_kelidan_the_breaker : public CreatureScript
                     addYell = true;
                     Talk(SAY_ADD_AGGRO);
                 }
-                for (uint8 i=0; i<5; ++i)
+                for (uint8 i = 0; i<5; ++i)
                 {
                     Creature* channeler = ObjectAccessor::GetCreature(*me, Channelers[i]);
                     if (who && channeler && !channeler->IsInCombat())
@@ -126,7 +124,7 @@ class boss_kelidan_the_breaker : public CreatureScript
 
             void ChannelerDied(Unit* killer)
             {
-                for (uint8 i=0; i<5; ++i)
+                for (uint8 i = 0; i < 5; ++i)
                 {
                     Creature* channeler = ObjectAccessor::GetCreature(*me, Channelers[i]);
                     if (channeler && channeler->IsAlive())
@@ -138,25 +136,25 @@ class boss_kelidan_the_breaker : public CreatureScript
                     AttackStart(killer);
             }
 
-            uint64 GetChanneled(Creature* channeler1)
+            ObjectGuid GetChanneled(Creature* channeler1)
             {
                 SummonChannelers();
                 if (!channeler1)
-                    return 0;
+                    return ObjectGuid::Empty;
 
                 uint8 i;
-                for (i=0; i<5; ++i)
+                for (i = 0; i < 5; ++i)
                 {
                     Creature* channeler = ObjectAccessor::GetCreature(*me, Channelers[i]);
                     if (channeler && channeler->GetGUID() == channeler1->GetGUID())
                         break;
                 }
-                return Channelers[(i+2)%5];
+                return Channelers[(i + 2) % 5];
             }
 
             void SummonChannelers()
             {
-                for (uint8 i=0; i<5; ++i)
+                for (uint8 i = 0; i < 5; ++i)
                 {
                     Creature* channeler = ObjectAccessor::GetCreature(*me, Channelers[i]);
                     if (!channeler || channeler->isDead())
@@ -164,7 +162,7 @@ class boss_kelidan_the_breaker : public CreatureScript
                     if (channeler)
                         Channelers[i] = channeler->GetGUID();
                     else
-                        Channelers[i] = 0;
+                        Channelers[i].Clear();
                 }
             }
 
@@ -310,16 +308,19 @@ class npc_shadowmoon_channeler : public CreatureScript
                     if (check_Timer <= diff)
                     {
                         if (!me->IsNonMeleeSpellCast(false))
+                        {
                             if (Creature* Kelidan = me->FindNearestCreature(ENTRY_KELIDAN, 100))
                             {
-                                uint64 channeler = ENSURE_AI(boss_kelidan_the_breaker::boss_kelidan_the_breakerAI, Kelidan->AI())->GetChanneled(me);
+                                ObjectGuid channeler = ENSURE_AI(boss_kelidan_the_breaker::boss_kelidan_the_breakerAI, Kelidan->AI())->GetChanneled(me);
                                 if (Unit* channeled = ObjectAccessor::GetUnit(*me, channeler))
                                     DoCast(channeled, SPELL_CHANNELING);
                             }
+                        }
                         check_Timer = 5000;
                     }
                     else
                         check_Timer -= diff;
+
                     return;
                 }
 
diff --git a/src/server/scripts/Outland/HellfireCitadel/BloodFurnace/instance_blood_furnace.cpp b/src/server/scripts/Outland/HellfireCitadel/BloodFurnace/instance_blood_furnace.cpp
index d88594d9c1e..8e9018a99c9 100644
--- a/src/server/scripts/Outland/HellfireCitadel/BloodFurnace/instance_blood_furnace.cpp
+++ b/src/server/scripts/Outland/HellfireCitadel/BloodFurnace/instance_blood_furnace.cpp
@@ -44,20 +44,6 @@ class instance_blood_furnace : public InstanceMapScript
                 SetBossNumber(EncounterCount);
                 LoadDoorData(doorData);
 
-                TheMakerGUID            = 0;
-                BroggokGUID             = 0;
-                KelidanTheBreakerGUID   = 0;
-
-                BroggokLeverGUID        = 0;
-                PrisonDoor4GUID         = 0;
-
-                memset(PrisonCellGUIDs, 0, 8 * sizeof(uint64));
-
-                PrisonersCell5.clear();
-                PrisonersCell6.clear();
-                PrisonersCell7.clear();
-                PrisonersCell8.clear();
-
                 PrisonerCounter5        = 0;
                 PrisonerCounter6        = 0;
                 PrisonerCounter7        = 0;
@@ -154,7 +140,7 @@ class instance_blood_furnace : public InstanceMapScript
                 }
             }
 
-            uint64 GetData64(uint32 type) const override
+            ObjectGuid GetGuidData(uint32 type) const override
             {
                 switch (type)
                 {
@@ -168,7 +154,7 @@ class instance_blood_furnace : public InstanceMapScript
                         return BroggokLeverGUID;
                 }
 
-                return 0;
+                return ObjectGuid::Empty;
             }
 
             bool SetBossState(uint32 type, EncounterState state) override
@@ -219,9 +205,9 @@ class instance_blood_furnace : public InstanceMapScript
                 HandleGameObject(PrisonCellGUIDs[DATA_PRISON_CELL8 - DATA_PRISON_CELL1], false);
             }
 
-            void ResetPrisoners(const std::set<uint64>& prisoners)
+            void ResetPrisoners(GuidSet const& prisoners)
             {
-                for (std::set<uint64>::const_iterator i = prisoners.begin(); i != prisoners.end(); ++i)
+                for (GuidSet::const_iterator i = prisoners.begin(); i != prisoners.end(); ++i)
                     if (Creature* prisoner = instance->GetCreature(*i))
                         ResetPrisoner(prisoner);
             }
@@ -273,7 +259,7 @@ class instance_blood_furnace : public InstanceMapScript
                 ResetPrisoner(creature);
             }
 
-            void PrisonerDied(uint64 guid)
+            void PrisonerDied(ObjectGuid guid)
             {
                 if (PrisonersCell5.find(guid) != PrisonersCell5.end() && --PrisonerCounter5 <= 0)
                     ActivateCell(DATA_PRISON_CELL6);
@@ -313,9 +299,9 @@ class instance_blood_furnace : public InstanceMapScript
                 }
             }
 
-            void ActivatePrisoners(std::set<uint64> const& prisoners)
+            void ActivatePrisoners(GuidSet const& prisoners)
             {
-                for (std::set<uint64>::const_iterator i = prisoners.begin(); i != prisoners.end(); ++i)
+                for (GuidSet::const_iterator i = prisoners.begin(); i != prisoners.end(); ++i)
                     if (Creature* prisoner = instance->GetCreature(*i))
                     {
                         prisoner->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_IMMUNE_TO_PC | UNIT_FLAG_IMMUNE_TO_NPC | UNIT_FLAG_NON_ATTACKABLE);
@@ -324,19 +310,19 @@ class instance_blood_furnace : public InstanceMapScript
             }
 
         protected:
-            uint64 TheMakerGUID;
-            uint64 BroggokGUID;
-            uint64 KelidanTheBreakerGUID;
+            ObjectGuid TheMakerGUID;
+            ObjectGuid BroggokGUID;
+            ObjectGuid KelidanTheBreakerGUID;
 
-            uint64 BroggokLeverGUID;
-            uint64 PrisonDoor4GUID;
+            ObjectGuid BroggokLeverGUID;
+            ObjectGuid PrisonDoor4GUID;
 
-            uint64 PrisonCellGUIDs[8];
+            ObjectGuid PrisonCellGUIDs[8];
 
-            std::set<uint64>PrisonersCell5;
-            std::set<uint64>PrisonersCell6;
-            std::set<uint64>PrisonersCell7;
-            std::set<uint64>PrisonersCell8;
+            GuidSet PrisonersCell5;
+            GuidSet PrisonersCell6;
+            GuidSet PrisonersCell7;
+            GuidSet PrisonersCell8;
 
             uint8 PrisonerCounter5;
             uint8 PrisonerCounter6;
diff --git a/src/server/scripts/Outland/HellfireCitadel/HellfireRamparts/boss_omor_the_unscarred.cpp b/src/server/scripts/Outland/HellfireCitadel/HellfireRamparts/boss_omor_the_unscarred.cpp
index 237aa506589..061d6a6a9a8 100644
--- a/src/server/scripts/Outland/HellfireCitadel/HellfireRamparts/boss_omor_the_unscarred.cpp
+++ b/src/server/scripts/Outland/HellfireCitadel/HellfireRamparts/boss_omor_the_unscarred.cpp
@@ -74,7 +74,7 @@ class boss_omor_the_unscarred : public CreatureScript
                 Shadowbolt_Timer = 2000;
                 Summon_Timer = 10000;
                 SummonedCount = 0;
-                PlayerGUID = 0;
+                PlayerGUID.Clear();
                 CanPullBack = false;
 
                 _Reset();
@@ -141,7 +141,7 @@ class boss_omor_the_unscarred : public CreatureScript
                                 DoCast(temp, SPELL_SHADOW_WHIP);
                             }
                         }
-                        PlayerGUID = 0;
+                        PlayerGUID.Clear();
                         ShadowWhip_Timer = 2000;
                         CanPullBack = false;
                     }
@@ -218,7 +218,7 @@ class boss_omor_the_unscarred : public CreatureScript
                 uint32 Shadowbolt_Timer;
                 uint32 Summon_Timer;
                 uint32 SummonedCount;
-                uint64 PlayerGUID;
+                ObjectGuid PlayerGUID;
                 bool CanPullBack;
         };
 
diff --git a/src/server/scripts/Outland/HellfireCitadel/HellfireRamparts/boss_vazruden_the_herald.cpp b/src/server/scripts/Outland/HellfireCitadel/HellfireRamparts/boss_vazruden_the_herald.cpp
index d2a93caf7a3..44c93dc77c9 100644
--- a/src/server/scripts/Outland/HellfireCitadel/HellfireRamparts/boss_vazruden_the_herald.cpp
+++ b/src/server/scripts/Outland/HellfireCitadel/HellfireRamparts/boss_vazruden_the_herald.cpp
@@ -70,7 +70,6 @@ class boss_nazan : public CreatureScript
         {
             boss_nazanAI(Creature* creature) : BossAI(creature, DATA_NAZAN)
             {
-                VazrudenGUID = 0;
                 flight = true;
             }
 
@@ -183,7 +182,7 @@ class boss_nazan : public CreatureScript
                 uint32 Fly_Timer;
                 uint32 Turn_Timer;
                 bool flight;
-                uint64 VazrudenGUID;
+                ObjectGuid VazrudenGUID;
         };
 
         CreatureAI* GetAI(Creature* creature) const override
@@ -282,8 +281,6 @@ class boss_vazruden_the_herald : public CreatureScript
                 summoned = false;
                 sentryDown = false;
                 lootSpawned = false;
-                NazanGUID = 0;
-                VazrudenGUID = 0;
             }
 
             void Reset() override
@@ -304,7 +301,7 @@ class boss_vazruden_the_herald : public CreatureScript
                     if (Nazan)
                     {
                         Nazan->DisappearAndDie();
-                        NazanGUID = 0;
+                        NazanGUID.Clear();
                     }
 
                     Creature* Vazruden = ObjectAccessor::GetCreature(*me, VazrudenGUID);
@@ -313,7 +310,7 @@ class boss_vazruden_the_herald : public CreatureScript
                     if (Vazruden)
                     {
                         Vazruden->DisappearAndDie();
-                        VazrudenGUID = 0;
+                        VazrudenGUID.Clear();
                     }
                     summoned = false;
                     me->ClearUnitState(UNIT_STATE_ROOT);
@@ -435,8 +432,8 @@ class boss_vazruden_the_herald : public CreatureScript
                 uint32 waypoint;
                 uint32 check;
                 bool sentryDown;
-                uint64 NazanGUID;
-                uint64 VazrudenGUID;
+                ObjectGuid NazanGUID;
+                ObjectGuid VazrudenGUID;
                 bool summoned;
                 bool lootSpawned;
         };
diff --git a/src/server/scripts/Outland/HellfireCitadel/HellfireRamparts/instance_hellfire_ramparts.cpp b/src/server/scripts/Outland/HellfireCitadel/HellfireRamparts/instance_hellfire_ramparts.cpp
index c8ffc7d495a..1c3eb6d8c34 100644
--- a/src/server/scripts/Outland/HellfireCitadel/HellfireRamparts/instance_hellfire_ramparts.cpp
+++ b/src/server/scripts/Outland/HellfireCitadel/HellfireRamparts/instance_hellfire_ramparts.cpp
@@ -40,7 +40,6 @@ class instance_ramparts : public InstanceMapScript
             {
                 SetHeaders(DataHeader);
                 SetBossNumber(EncounterCount);
-                felIronChestGUID = 0;
             }
 
             void OnGameObjectCreate(GameObject* go) override
@@ -74,7 +73,7 @@ class instance_ramparts : public InstanceMapScript
             }
 
         protected:
-            uint64 felIronChestGUID;
+            ObjectGuid felIronChestGUID;
             bool spawned;
         };
 
diff --git a/src/server/scripts/Outland/HellfireCitadel/MagtheridonsLair/boss_magtheridon.cpp b/src/server/scripts/Outland/HellfireCitadel/MagtheridonsLair/boss_magtheridon.cpp
index 8a5d6e41780..50cdcfe121b 100644
--- a/src/server/scripts/Outland/HellfireCitadel/MagtheridonsLair/boss_magtheridon.cpp
+++ b/src/server/scripts/Outland/HellfireCitadel/MagtheridonsLair/boss_magtheridon.cpp
@@ -85,7 +85,7 @@ enum Spells
 //count of clickers needed to interrupt blast nova
 #define CLICKERS_COUNT              5
 
-typedef std::map<uint64, uint64> CubeMap;
+typedef std::map<ObjectGuid, ObjectGuid> CubeMap;
 
 class npc_abyssal : public CreatureScript
 {
@@ -253,10 +253,10 @@ class boss_magtheridon : public CreatureScript
                 instance->SetData(DATA_COLLAPSE, false);
             }
 
-            void SetClicker(uint64 cubeGUID, uint64 clickerGUID)
+            void SetClicker(ObjectGuid cubeGUID, ObjectGuid clickerGUID)
             {
                 // to avoid multiclicks from 1 cube
-                if (uint64 guid = Cube[cubeGUID])
+                if (ObjectGuid guid = Cube[cubeGUID])
                     DebuffClicker(ObjectAccessor::GetUnit(*me, guid));
                 Cube[cubeGUID] = clickerGUID;
                 NeedCheckCube = true;
@@ -284,7 +284,7 @@ class boss_magtheridon : public CreatureScript
                     if (!clicker || !clicker->HasAura(SPELL_SHADOW_GRASP))
                     {
                         DebuffClicker(clicker);
-                        (*i).second = 0;
+                        (*i).second.Clear();
                     }
                     else
                         ++ClickerNum;
@@ -588,7 +588,7 @@ public:
 
         if (instance->GetData(DATA_MAGTHERIDON_EVENT) != IN_PROGRESS)
             return true;
-        Creature* Magtheridon =ObjectAccessor::GetCreature(*go, instance->GetData64(DATA_MAGTHERIDON));
+        Creature* Magtheridon =ObjectAccessor::GetCreature(*go, instance->GetGuidData(DATA_MAGTHERIDON));
         if (!Magtheridon || !Magtheridon->IsAlive())
             return true;
 
diff --git a/src/server/scripts/Outland/HellfireCitadel/MagtheridonsLair/instance_magtheridons_lair.cpp b/src/server/scripts/Outland/HellfireCitadel/MagtheridonsLair/instance_magtheridons_lair.cpp
index 45262f9109c..db0159d1a2d 100644
--- a/src/server/scripts/Outland/HellfireCitadel/MagtheridonsLair/instance_magtheridons_lair.cpp
+++ b/src/server/scripts/Outland/HellfireCitadel/MagtheridonsLair/instance_magtheridons_lair.cpp
@@ -58,10 +58,10 @@ class instance_magtheridons_lair : public InstanceMapScript
 
             uint32 m_auiEncounter[MAX_ENCOUNTER];
 
-            uint64 MagtheridonGUID;
-            std::set<uint64> ChannelerGUID;
-            uint64 DoorGUID;
-            std::set<uint64> ColumnGUID;
+            ObjectGuid MagtheridonGUID;
+            GuidSet ChannelerGUID;
+            ObjectGuid DoorGUID;
+            GuidSet ColumnGUID;
 
             uint32 CageTimer;
             uint32 RespawnTimer;
@@ -71,11 +71,6 @@ class instance_magtheridons_lair : public InstanceMapScript
                 SetHeaders(DataHeader);
                 memset(&m_auiEncounter, 0, sizeof(m_auiEncounter));
 
-                MagtheridonGUID = 0;
-                ChannelerGUID.clear();
-                DoorGUID = 0;
-                ColumnGUID.clear();
-
                 CageTimer = 0;
                 RespawnTimer = 0;
             }
@@ -124,14 +119,14 @@ class instance_magtheridons_lair : public InstanceMapScript
                 }
             }
 
-            uint64 GetData64(uint32 type) const override
+            ObjectGuid GetGuidData(uint32 type) const override
             {
                 switch (type)
                 {
                 case DATA_MAGTHERIDON:
                     return MagtheridonGUID;
                 }
-                return 0;
+                return ObjectGuid::Empty;
             }
 
             void SetData(uint32 type, uint32 data) override
@@ -152,7 +147,7 @@ class instance_magtheridons_lair : public InstanceMapScript
                         if (m_auiEncounter[1] != NOT_STARTED)
                         {
                             m_auiEncounter[1] = NOT_STARTED;
-                            for (std::set<uint64>::const_iterator i = ChannelerGUID.begin(); i != ChannelerGUID.end(); ++i)
+                            for (GuidSet::const_iterator i = ChannelerGUID.begin(); i != ChannelerGUID.end(); ++i)
                             {
                                 if (Creature* Channeler = instance->GetCreature(*i))
                                 {
@@ -171,7 +166,7 @@ class instance_magtheridons_lair : public InstanceMapScript
                         {
                             m_auiEncounter[1] = IN_PROGRESS;
                             // Let all five channelers aggro.
-                            for (std::set<uint64>::const_iterator i = ChannelerGUID.begin(); i != ChannelerGUID.end(); ++i)
+                            for (GuidSet::const_iterator i = ChannelerGUID.begin(); i != ChannelerGUID.end(); ++i)
                             {
                                 Creature* Channeler = instance->GetCreature(*i);
                                 if (Channeler && Channeler->IsAlive())
@@ -188,7 +183,7 @@ class instance_magtheridons_lair : public InstanceMapScript
                         }
                         break;
                     case DONE: // Add buff and check if all channelers are dead.
-                        for (std::set<uint64>::const_iterator i = ChannelerGUID.begin(); i != ChannelerGUID.end(); ++i)
+                        for (GuidSet::const_iterator i = ChannelerGUID.begin(); i != ChannelerGUID.end(); ++i)
                         {
                             Creature* Channeler = instance->GetCreature(*i);
                             if (Channeler && Channeler->IsAlive())
@@ -204,7 +199,7 @@ class instance_magtheridons_lair : public InstanceMapScript
                     break;
                 case DATA_COLLAPSE:
                     // true - collapse / false - reset
-                    for (std::set<uint64>::const_iterator i = ColumnGUID.begin(); i != ColumnGUID.end(); ++i)
+                    for (GuidSet::const_iterator i = ColumnGUID.begin(); i != ColumnGUID.end(); ++i)
                         DoUseDoorOrButton(*i);
                     break;
                 default:
@@ -239,7 +234,7 @@ class instance_magtheridons_lair : public InstanceMapScript
                 {
                     if (RespawnTimer <= diff)
                     {
-                        for (std::set<uint64>::const_iterator i = ChannelerGUID.begin(); i != ChannelerGUID.end(); ++i)
+                        for (GuidSet::const_iterator i = ChannelerGUID.begin(); i != ChannelerGUID.end(); ++i)
                         {
                             if (Creature* Channeler = instance->GetCreature(*i))
                             {
diff --git a/src/server/scripts/Outland/HellfireCitadel/ShatteredHalls/boss_nethekurse.cpp b/src/server/scripts/Outland/HellfireCitadel/ShatteredHalls/boss_nethekurse.cpp
index 9a8f83fa1c2..741d5b78285 100644
--- a/src/server/scripts/Outland/HellfireCitadel/ShatteredHalls/boss_nethekurse.cpp
+++ b/src/server/scripts/Outland/HellfireCitadel/ShatteredHalls/boss_nethekurse.cpp
@@ -323,7 +323,7 @@ class npc_fel_orc_convert : public CreatureScript
             {
                 events.ScheduleEvent(EVENT_HEMORRHAGE, 3000);
 
-                if (Creature* Kurse = ObjectAccessor::GetCreature(*me, instance->GetData64(NPC_GRAND_WARLOCK_NETHEKURSE)))
+                if (Creature* Kurse = ObjectAccessor::GetCreature(*me, instance->GetGuidData(NPC_GRAND_WARLOCK_NETHEKURSE)))
                     if (me->IsWithinDist(Kurse, 45.0f))
                         Kurse->AI()->SetData(SETDATA_DATA, SETDATA_PEON_AGGRO);
             }
@@ -333,7 +333,7 @@ class npc_fel_orc_convert : public CreatureScript
                 if (instance->GetBossState(DATA_NETHEKURSE) != IN_PROGRESS)
                     return;
 
-                if (Creature* Kurse = ObjectAccessor::GetCreature(*me, instance->GetData64(NPC_GRAND_WARLOCK_NETHEKURSE)))
+                if (Creature* Kurse = ObjectAccessor::GetCreature(*me, instance->GetGuidData(NPC_GRAND_WARLOCK_NETHEKURSE)))
                     Kurse->AI()->SetData(SETDATA_DATA, SETDATA_PEON_DEATH);
             }
 
diff --git a/src/server/scripts/Outland/HellfireCitadel/ShatteredHalls/boss_warbringer_omrogg.cpp b/src/server/scripts/Outland/HellfireCitadel/ShatteredHalls/boss_warbringer_omrogg.cpp
index d61c40f8e3b..f60c65b0b7a 100644
--- a/src/server/scripts/Outland/HellfireCitadel/ShatteredHalls/boss_warbringer_omrogg.cpp
+++ b/src/server/scripts/Outland/HellfireCitadel/ShatteredHalls/boss_warbringer_omrogg.cpp
@@ -136,8 +136,6 @@ class boss_warbringer_omrogg : public CreatureScript
         {
             boss_warbringer_omroggAI(Creature* creature) : BossAI(creature, DATA_OMROGG)
             {
-                LeftHeadGUID  = 0;
-                RightHeadGUID = 0;
             }
 
             void Reset() override
@@ -145,13 +143,13 @@ class boss_warbringer_omrogg : public CreatureScript
                 if (Unit* LeftHead  = ObjectAccessor::GetUnit(*me, LeftHeadGUID))
                 {
                     LeftHead->setDeathState(JUST_DIED);
-                    LeftHeadGUID = 0;
+                    LeftHeadGUID.Clear();
                 }
 
                 if (Unit* RightHead  = ObjectAccessor::GetUnit(*me, RightHeadGUID))
                 {
                     RightHead->setDeathState(JUST_DIED);
-                    RightHeadGUID = 0;
+                    RightHeadGUID.Clear();
                 }
 
                 AggroYell = false;
@@ -363,8 +361,8 @@ class boss_warbringer_omrogg : public CreatureScript
             }
 
             private:
-                uint64 LeftHeadGUID;
-                uint64 RightHeadGUID;
+                ObjectGuid LeftHeadGUID;
+                ObjectGuid RightHeadGUID;
                 int iaggro;
                 int ithreat;
                 int ikilling;
diff --git a/src/server/scripts/Outland/HellfireCitadel/ShatteredHalls/boss_warchief_kargath_bladefist.cpp b/src/server/scripts/Outland/HellfireCitadel/ShatteredHalls/boss_warchief_kargath_bladefist.cpp
index f1dfcc2b391..7145ebfd7aa 100644
--- a/src/server/scripts/Outland/HellfireCitadel/ShatteredHalls/boss_warchief_kargath_bladefist.cpp
+++ b/src/server/scripts/Outland/HellfireCitadel/ShatteredHalls/boss_warchief_kargath_bladefist.cpp
@@ -143,7 +143,7 @@ class boss_warchief_kargath_bladefist : public CreatureScript
 
             void removeAdds()
             {
-                for (std::vector<uint64>::const_iterator itr = adds.begin(); itr!= adds.end(); ++itr)
+                for (GuidVector::const_iterator itr = adds.begin(); itr!= adds.end(); ++itr)
                 {
                     Creature* creature = ObjectAccessor::GetCreature(*me, *itr);
                     if (creature && creature->IsAlive())
@@ -155,7 +155,7 @@ class boss_warchief_kargath_bladefist : public CreatureScript
                 }
                 adds.clear();
 
-                for (std::vector<uint64>::const_iterator itr = assassins.begin(); itr!= assassins.end(); ++itr)
+                for (GuidVector::const_iterator itr = assassins.begin(); itr!= assassins.end(); ++itr)
                 {
                     Creature* creature = ObjectAccessor::GetCreature(*me, *itr);
                     if (creature && creature->IsAlive())
@@ -295,8 +295,8 @@ class boss_warchief_kargath_bladefist : public CreatureScript
             }
 
             private:
-                std::vector<uint64> adds;
-                std::vector<uint64> assassins;
+                GuidVector adds;
+                GuidVector assassins;
                 uint32 Charge_timer;
                 uint32 Blade_Dance_Timer;
                 uint32 Summon_Assistant_Timer;
diff --git a/src/server/scripts/Outland/HellfireCitadel/ShatteredHalls/instance_shattered_halls.cpp b/src/server/scripts/Outland/HellfireCitadel/ShatteredHalls/instance_shattered_halls.cpp
index 8ee63ff03a2..838297aa21f 100644
--- a/src/server/scripts/Outland/HellfireCitadel/ShatteredHalls/instance_shattered_halls.cpp
+++ b/src/server/scripts/Outland/HellfireCitadel/ShatteredHalls/instance_shattered_halls.cpp
@@ -45,9 +45,6 @@ class instance_shattered_halls : public InstanceMapScript
             {
                 SetHeaders(DataHeader);
                 SetBossNumber(EncounterCount);
-                nethekurseGUID      = 0;
-                nethekurseDoor1GUID = 0;
-                nethekurseDoor2GUID = 0;
             }
 
             void OnGameObjectCreate(GameObject* go) override
@@ -98,7 +95,7 @@ class instance_shattered_halls : public InstanceMapScript
                 return true;
             }
 
-            uint64 GetData64(uint32 data) const override
+            ObjectGuid GetGuidData(uint32 data) const override
             {
                 switch (data)
                 {
@@ -112,13 +109,13 @@ class instance_shattered_halls : public InstanceMapScript
                         return nethekurseDoor2GUID;
                         break;
                 }
-                return 0;
+                return ObjectGuid::Empty;
             }
 
         protected:
-            uint64 nethekurseGUID;
-            uint64 nethekurseDoor1GUID;
-            uint64 nethekurseDoor2GUID;
+            ObjectGuid nethekurseGUID;
+            ObjectGuid nethekurseDoor1GUID;
+            ObjectGuid nethekurseDoor2GUID;
         };
 };
 
diff --git a/src/server/scripts/Outland/TempestKeep/Eye/boss_alar.cpp b/src/server/scripts/Outland/TempestKeep/Eye/boss_alar.cpp
index 09cb72f1a47..8dd1aad5d4d 100644
--- a/src/server/scripts/Outland/TempestKeep/Eye/boss_alar.cpp
+++ b/src/server/scripts/Outland/TempestKeep/Eye/boss_alar.cpp
@@ -178,7 +178,7 @@ class boss_alar : public CreatureScript
                         me->RemoveAllAuras();
                         me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
                         me->AttackStop();
-                        me->SetTarget(0);
+                        me->SetTarget(ObjectGuid::Empty);
                         me->SetSpeed(MOVE_RUN, 5.0f);
                         me->GetMotionMaster()->Clear();
                         me->GetMotionMaster()->MovePoint(0, waypoint[5][0], waypoint[5][1], waypoint[5][2]);
@@ -494,7 +494,7 @@ class npc_ember_of_alar : public CreatureScript
                     me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
                     if (instance->GetData(DATA_ALAREVENT) == 2)
                     {
-                        if (Unit* Alar = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_ALAR)))
+                        if (Unit* Alar = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_ALAR)))
                         {
                             int32 AlarHealth = int32(Alar->GetHealth()) - int32(Alar->CountPctFromMaxHealth(3));
                             if (AlarHealth > 0)
diff --git a/src/server/scripts/Outland/TempestKeep/Eye/boss_astromancer.cpp b/src/server/scripts/Outland/TempestKeep/Eye/boss_astromancer.cpp
index 63c01540af2..0a9e5665ec8 100644
--- a/src/server/scripts/Outland/TempestKeep/Eye/boss_astromancer.cpp
+++ b/src/server/scripts/Outland/TempestKeep/Eye/boss_astromancer.cpp
@@ -464,7 +464,7 @@ class npc_solarium_priest : public CreatureScript
                     switch (urand(0, 1))
                     {
                         case 0:
-                            target = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_ASTROMANCER));
+                            target = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_ASTROMANCER));
                             break;
                         case 1:
                             target = me;
diff --git a/src/server/scripts/Outland/TempestKeep/Eye/boss_kaelthas.cpp b/src/server/scripts/Outland/TempestKeep/Eye/boss_kaelthas.cpp
index 64deebce8b8..8b23ee172af 100644
--- a/src/server/scripts/Outland/TempestKeep/Eye/boss_kaelthas.cpp
+++ b/src/server/scripts/Outland/TempestKeep/Eye/boss_kaelthas.cpp
@@ -163,7 +163,7 @@ struct advisorbase_ai : public ScriptedAI
     bool FakeDeath;
     bool m_bDoubled_Health;
     uint32 DelayRes_Timer;
-    uint64 DelayRes_Target;
+    ObjectGuid DelayRes_Target;
 
     void Reset() override
     {
@@ -175,7 +175,7 @@ struct advisorbase_ai : public ScriptedAI
 
         FakeDeath = false;
         DelayRes_Timer = 0;
-        DelayRes_Target = 0;
+        DelayRes_Target.Clear();
 
         me->SetStandState(UNIT_STAND_STATE_STAND);
         me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
@@ -183,7 +183,7 @@ struct advisorbase_ai : public ScriptedAI
 
         //reset encounter
         if (instance->GetData(DATA_KAELTHASEVENT) == 1 || instance->GetData(DATA_KAELTHASEVENT) == 3)
-            if (Creature* Kaelthas = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_KAELTHAS)))
+            if (Creature* Kaelthas = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_KAELTHAS)))
                 Kaelthas->AI()->EnterEvadeMode();
     }
 
@@ -245,7 +245,7 @@ struct advisorbase_ai : public ScriptedAI
             me->ModifyAuraState(AURA_STATE_HEALTHLESS_35_PERCENT, false);
             me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE);
             me->ClearAllReactives();
-            me->SetTarget(0);
+            me->SetTarget(ObjectGuid::Empty);
             me->GetMotionMaster()->Clear();
             me->GetMotionMaster()->MoveIdle();
             me->SetStandState(UNIT_STAND_STATE_DEAD);
@@ -290,7 +290,6 @@ class boss_kaelthas : public CreatureScript
             boss_kaelthasAI(Creature* creature) : ScriptedAI(creature), summons(me)
             {
                 instance = creature->GetInstanceScript();
-                memset(&m_auiAdvisorGuid, 0, sizeof(m_auiAdvisorGuid));
             }
 
             InstanceScript* instance;
@@ -316,7 +315,7 @@ class boss_kaelthas : public CreatureScript
 
             SummonList summons;
 
-            uint64 m_auiAdvisorGuid[MAX_ADVISORS];
+            ObjectGuid m_auiAdvisorGuid[MAX_ADVISORS];
 
             void Reset() override
             {
@@ -363,10 +362,10 @@ class boss_kaelthas : public CreatureScript
 
             void StartEvent()
             {
-                m_auiAdvisorGuid[0] = instance->GetData64(DATA_THALADREDTHEDARKENER);
-                m_auiAdvisorGuid[1] = instance->GetData64(DATA_LORDSANGUINAR);
-                m_auiAdvisorGuid[2] = instance->GetData64(DATA_GRANDASTROMANCERCAPERNIAN);
-                m_auiAdvisorGuid[3] = instance->GetData64(DATA_MASTERENGINEERTELONICUS);
+                m_auiAdvisorGuid[0] = instance->GetGuidData(DATA_THALADREDTHEDARKENER);
+                m_auiAdvisorGuid[1] = instance->GetGuidData(DATA_LORDSANGUINAR);
+                m_auiAdvisorGuid[2] = instance->GetGuidData(DATA_GRANDASTROMANCERCAPERNIAN);
+                m_auiAdvisorGuid[3] = instance->GetGuidData(DATA_MASTERENGINEERTELONICUS);
 
                 if (!m_auiAdvisorGuid[0] || !m_auiAdvisorGuid[1] || !m_auiAdvisorGuid[2] || !m_auiAdvisorGuid[3])
                 {
@@ -927,7 +926,7 @@ class boss_kaelthas : public CreatureScript
 
                                                 //Using packet workaround
                                                 WorldPacket data(SMSG_MOVE_SET_CAN_FLY, 12);
-                                                data.append(unit->GetPackGUID());
+                                                data << unit->GetPackGUID();
                                                 data << uint32(0);
                                                 unit->SendMessageToSet(&data, true);
                                             }
@@ -953,7 +952,7 @@ class boss_kaelthas : public CreatureScript
                                             {
                                                 //Using packet workaround
                                                 WorldPacket data(SMSG_MOVE_UNSET_CAN_FLY, 12);
-                                                data.append(unit->GetPackGUID());
+                                                data << unit->GetPackGUID();
                                                 data << uint32(0);
                                                 unit->SendMessageToSet(&data, true);
                                             }
diff --git a/src/server/scripts/Outland/TempestKeep/Eye/boss_void_reaver.cpp b/src/server/scripts/Outland/TempestKeep/Eye/boss_void_reaver.cpp
index 6b78706b437..b518eb1cb8b 100644
--- a/src/server/scripts/Outland/TempestKeep/Eye/boss_void_reaver.cpp
+++ b/src/server/scripts/Outland/TempestKeep/Eye/boss_void_reaver.cpp
@@ -137,7 +137,7 @@ class boss_void_reaver : public CreatureScript
                         target = me->GetVictim();
 
                     if (target)
-                        me->CastSpell(target, SPELL_ARCANE_ORB, false, NULL, NULL, 0);
+                        me->CastSpell(target, SPELL_ARCANE_ORB, false, NULL, NULL);
                     ArcaneOrb_Timer = 3000;
                 }
                 else
diff --git a/src/server/scripts/Outland/TempestKeep/Eye/instance_the_eye.cpp b/src/server/scripts/Outland/TempestKeep/Eye/instance_the_eye.cpp
index 07cbd68f741..2234547c76a 100644
--- a/src/server/scripts/Outland/TempestKeep/Eye/instance_the_eye.cpp
+++ b/src/server/scripts/Outland/TempestKeep/Eye/instance_the_eye.cpp
@@ -48,13 +48,13 @@ class instance_the_eye : public InstanceMapScript
         {
             instance_the_eye_InstanceMapScript(Map* map) : InstanceScript(map) { }
 
-            uint64 ThaladredTheDarkener;
-            uint64 LordSanguinar;
-            uint64 GrandAstromancerCapernian;
-            uint64 MasterEngineerTelonicus;
-            uint64 Kaelthas;
-            uint64 Astromancer;
-            uint64 Alar;
+            ObjectGuid ThaladredTheDarkener;
+            ObjectGuid LordSanguinar;
+            ObjectGuid GrandAstromancerCapernian;
+            ObjectGuid MasterEngineerTelonicus;
+            ObjectGuid Kaelthas;
+            ObjectGuid Astromancer;
+            ObjectGuid Alar;
             uint8 KaelthasEventPhase;
             uint8 AlarEventPhase;
 
@@ -65,14 +65,6 @@ class instance_the_eye : public InstanceMapScript
                 SetHeaders(DataHeader);
                 memset(&m_auiEncounter, 0, sizeof(m_auiEncounter));
 
-                ThaladredTheDarkener = 0;
-                LordSanguinar = 0;
-                GrandAstromancerCapernian = 0;
-                MasterEngineerTelonicus = 0;
-                Kaelthas = 0;
-                Astromancer = 0;
-                Alar = 0;
-
                 KaelthasEventPhase = 0;
                 AlarEventPhase = 0;
             }
@@ -114,7 +106,7 @@ class instance_the_eye : public InstanceMapScript
                 }
             }
 
-            uint64 GetData64(uint32 identifier) const override
+            ObjectGuid GetGuidData(uint32 identifier) const override
             {
                 switch (identifier)
                 {
@@ -126,7 +118,7 @@ class instance_the_eye : public InstanceMapScript
                 case DATA_ASTROMANCER:                  return Astromancer;
                 case DATA_ALAR:                         return Alar;
                 }
-                return 0;
+                return ObjectGuid::Empty;
             }
 
             void SetData(uint32 type, uint32 data) override
diff --git a/src/server/scripts/Outland/TempestKeep/arcatraz/arcatraz.cpp b/src/server/scripts/Outland/TempestKeep/arcatraz/arcatraz.cpp
index 3befc3742ff..1a8658c8fbc 100644
--- a/src/server/scripts/Outland/TempestKeep/arcatraz/arcatraz.cpp
+++ b/src/server/scripts/Outland/TempestKeep/arcatraz/arcatraz.cpp
@@ -322,7 +322,7 @@ class npc_warden_mellichar : public CreatureScript
                 DoCast(me, SPELL_BUBBLE_VISUAL);
 
                 instance->SetBossState(DATA_HARBINGER_SKYRISS, IN_PROGRESS);
-                instance->HandleGameObject(instance->GetData64(DATA_WARDENS_SHIELD), false);
+                instance->HandleGameObject(instance->GetGuidData(DATA_WARDENS_SHIELD), false);
                 IsRunning = true;
             }
 
@@ -356,7 +356,7 @@ class npc_warden_mellichar : public CreatureScript
                     case 2:
                         DoCast(me, SPELL_TARGET_ALPHA);
                         instance->SetData(DATA_WARDEN_1, IN_PROGRESS);
-                        instance->HandleGameObject(instance->GetData64(DATA_WARDENS_SHIELD), false);
+                        instance->HandleGameObject(instance->GetGuidData(DATA_WARDENS_SHIELD), false);
                         break;
                     case 3:
                         DoCast(me, SPELL_TARGET_BETA);
diff --git a/src/server/scripts/Outland/TempestKeep/arcatraz/boss_dalliah_the_doomsayer.cpp b/src/server/scripts/Outland/TempestKeep/arcatraz/boss_dalliah_the_doomsayer.cpp
index 41bc93cfdfe..71e23a65d66 100644
--- a/src/server/scripts/Outland/TempestKeep/arcatraz/boss_dalliah_the_doomsayer.cpp
+++ b/src/server/scripts/Outland/TempestKeep/arcatraz/boss_dalliah_the_doomsayer.cpp
@@ -77,7 +77,7 @@ class boss_dalliah_the_doomsayer : public CreatureScript
                 _JustDied();
                 Talk(SAY_DEATH);
 
-                if (Creature* soccothrates = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SOCCOTHRATES)))
+                if (Creature* soccothrates = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SOCCOTHRATES)))
                     if (soccothrates->IsAlive() && !soccothrates->IsInCombat())
                         soccothrates->AI()->SetData(1, 1);
             }
@@ -163,7 +163,7 @@ class boss_dalliah_the_doomsayer : public CreatureScript
                             events.ScheduleEvent(EVENT_SHADOW_WAVE, urand(11000, 16000));
                             break;
                         case EVENT_ME_FIRST:
-                            if (Creature* soccothrates = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SOCCOTHRATES)))
+                            if (Creature* soccothrates = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SOCCOTHRATES)))
                                 if (soccothrates->IsAlive() && !soccothrates->IsInCombat())
                                     soccothrates->AI()->Talk(SAY_AGGRO_DALLIAH_FIRST);
                             break;
@@ -174,7 +174,7 @@ class boss_dalliah_the_doomsayer : public CreatureScript
 
                 if (HealthBelowPct(25) && !soccothratesTaunt)
                 {
-                    if (Creature* soccothrates = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_SOCCOTHRATES)))
+                    if (Creature* soccothrates = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_SOCCOTHRATES)))
                         soccothrates->AI()->Talk(SAY_DALLIAH_25_PERCENT);
                     soccothratesTaunt = true;
                 }
diff --git a/src/server/scripts/Outland/TempestKeep/arcatraz/boss_harbinger_skyriss.cpp b/src/server/scripts/Outland/TempestKeep/arcatraz/boss_harbinger_skyriss.cpp
index 7563ecb40db..ec22baf2d4e 100644
--- a/src/server/scripts/Outland/TempestKeep/arcatraz/boss_harbinger_skyriss.cpp
+++ b/src/server/scripts/Outland/TempestKeep/arcatraz/boss_harbinger_skyriss.cpp
@@ -158,18 +158,18 @@ class boss_harbinger_skyriss : public CreatureScript
                         {
                         case 1:
                             Talk(SAY_INTRO);
-                            instance->HandleGameObject(instance->GetData64(DATA_WARDENS_SHIELD), true);
+                            instance->HandleGameObject(instance->GetGuidData(DATA_WARDENS_SHIELD), true);
                             ++Intro_Phase;
                             Intro_Timer = 25000;
                             break;
                         case 2:
                             Talk(SAY_AGGRO);
-                            if (Unit* mellic = ObjectAccessor::GetUnit(*me, instance->GetData64(DATA_MELLICHAR)))
+                            if (Unit* mellic = ObjectAccessor::GetUnit(*me, instance->GetGuidData(DATA_MELLICHAR)))
                             {
                                 //should have a better way to do this. possibly spell exist.
                                 mellic->setDeathState(JUST_DIED);
                                 mellic->SetHealth(0);
-                                instance->HandleGameObject(instance->GetData64(DATA_WARDENS_SHIELD), false);
+                                instance->HandleGameObject(instance->GetGuidData(DATA_WARDENS_SHIELD), false);
                             }
                             ++Intro_Phase;
                             Intro_Timer = 3000;
diff --git a/src/server/scripts/Outland/TempestKeep/arcatraz/boss_wrath_scryer_soccothrates.cpp b/src/server/scripts/Outland/TempestKeep/arcatraz/boss_wrath_scryer_soccothrates.cpp
index a519ec7207c..27de2786243 100644
--- a/src/server/scripts/Outland/TempestKeep/arcatraz/boss_wrath_scryer_soccothrates.cpp
+++ b/src/server/scripts/Outland/TempestKeep/arcatraz/boss_wrath_scryer_soccothrates.cpp
@@ -103,7 +103,7 @@ class boss_wrath_scryer_soccothrates : public CreatureScript
                 _JustDied();
                 Talk(SAY_DEATH);
 
-                if (Creature* dalliah = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_DALLIAH)))
+                if (Creature* dalliah = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_DALLIAH)))
                     if (dalliah->IsAlive() && !dalliah->IsInCombat())
                         dalliah->AI()->SetData(1, 1);
             }
@@ -161,7 +161,7 @@ class boss_wrath_scryer_soccothrates : public CreatureScript
                             switch (eventId)
                             {
                                 case EVENT_PREFIGHT_1:
-                                    if (Creature* dalliah = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_DALLIAH)))
+                                    if (Creature* dalliah = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_DALLIAH)))
                                         dalliah->AI()->Talk(SAY_DALLIAH_CONVO_1);
                                     events.ScheduleEvent(EVENT_PREFIGHT_2, 3000);
                                     break;
@@ -170,7 +170,7 @@ class boss_wrath_scryer_soccothrates : public CreatureScript
                                     events.ScheduleEvent(EVENT_PREFIGHT_3, 3000);
                                     break;
                                 case EVENT_PREFIGHT_3:
-                                    if (Creature* dalliah = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_DALLIAH)))
+                                    if (Creature* dalliah = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_DALLIAH)))
                                         dalliah->AI()->Talk(SAY_DALLIAH_CONVO_2);
                                     events.ScheduleEvent(EVENT_PREFIGHT_4, 6000);
                                     break;
@@ -179,7 +179,7 @@ class boss_wrath_scryer_soccothrates : public CreatureScript
                                     events.ScheduleEvent(EVENT_PREFIGHT_5, 2000);
                                     break;
                                 case EVENT_PREFIGHT_5:
-                                    if (Creature* dalliah = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_DALLIAH)))
+                                    if (Creature* dalliah = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_DALLIAH)))
                                         dalliah->AI()->Talk(SAY_DALLIAH_CONVO_3);
                                     events.ScheduleEvent(EVENT_PREFIGHT_6, 3000);
                                     break;
@@ -188,7 +188,7 @@ class boss_wrath_scryer_soccothrates : public CreatureScript
                                     events.ScheduleEvent(EVENT_PREFIGHT_7, 2000);
                                     break;
                                 case EVENT_PREFIGHT_7:
-                                    if (Creature* dalliah = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_DALLIAH)))
+                                    if (Creature* dalliah = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_DALLIAH)))
                                         dalliah->GetMotionMaster()->MovePoint(0, 118.6048f, 96.84852f, 22.44115f);
                                     events.ScheduleEvent(EVENT_PREFIGHT_8, 4000);
                                     break;
@@ -197,7 +197,7 @@ class boss_wrath_scryer_soccothrates : public CreatureScript
                                     events.ScheduleEvent(EVENT_PREFIGHT_9, 4000);
                                     break;
                                 case EVENT_PREFIGHT_9:
-                                    if (Creature* dalliah = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_DALLIAH)))
+                                    if (Creature* dalliah = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_DALLIAH)))
                                     {
                                         dalliah->SetFacingToObject(me);
                                         me->SetFacingToObject(dalliah);
@@ -251,7 +251,7 @@ class boss_wrath_scryer_soccothrates : public CreatureScript
                             events.ScheduleEvent(EVENT_KNOCK_AWAY, urand(11000, 12000));
                             break;
                         case EVENT_ME_FIRST:
-                            if (Creature* dalliah = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_DALLIAH)))
+                            if (Creature* dalliah = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_DALLIAH)))
                                 if (dalliah->IsAlive() && !dalliah->IsInCombat())
                                     dalliah->AI()->Talk(SAY_AGGRO_SOCCOTHRATES_FIRST);
                             break;
@@ -262,7 +262,7 @@ class boss_wrath_scryer_soccothrates : public CreatureScript
 
                 if (HealthBelowPct(25) && !dalliahTaunt)
                 {
-                    if (Creature* dalliah = ObjectAccessor::GetCreature(*me, instance->GetData64(DATA_DALLIAH)))
+                    if (Creature* dalliah = ObjectAccessor::GetCreature(*me, instance->GetGuidData(DATA_DALLIAH)))
                         dalliah->AI()->Talk(SAY_SOCCOTHRATES_25_PERCENT);
                     dalliahTaunt = true;
                 }
diff --git a/src/server/scripts/Outland/TempestKeep/arcatraz/instance_arcatraz.cpp b/src/server/scripts/Outland/TempestKeep/arcatraz/instance_arcatraz.cpp
index b092243637b..984af86e645 100644
--- a/src/server/scripts/Outland/TempestKeep/arcatraz/instance_arcatraz.cpp
+++ b/src/server/scripts/Outland/TempestKeep/arcatraz/instance_arcatraz.cpp
@@ -39,14 +39,8 @@ class instance_arcatraz : public InstanceMapScript
                 SetBossNumber(EncounterCount);
                 LoadDoorData(doorData);
 
-                DalliahGUID       = 0;
-                SoccothratesGUID  = 0;
-                MellicharGUID     = 0;
-                WardensShieldGUID = 0;
-
                 ConversationState = NOT_STARTED;
 
-                memset(StasisPodGUIDs, 0, 5 * sizeof(uint64));
                 memset(StasisPodStates, NOT_STARTED, 5 * sizeof(uint8));
             }
 
@@ -151,7 +145,7 @@ class instance_arcatraz : public InstanceMapScript
                 return 0;
             }
 
-            uint64 GetData64(uint32 data) const override
+            ObjectGuid GetGuidData(uint32 data) const override
             {
                 switch (data)
                 {
@@ -166,7 +160,7 @@ class instance_arcatraz : public InstanceMapScript
                     default:
                         break;
                 }
-                return 0;
+                return ObjectGuid::Empty;
             }
 
             bool SetBossState(uint32 type, EncounterState state) override
@@ -193,11 +187,11 @@ class instance_arcatraz : public InstanceMapScript
             }
 
         protected:
-            uint64 DalliahGUID;
-            uint64 SoccothratesGUID;
-            uint64 StasisPodGUIDs[5];
-            uint64 MellicharGUID;
-            uint64 WardensShieldGUID;
+            ObjectGuid DalliahGUID;
+            ObjectGuid SoccothratesGUID;
+            ObjectGuid StasisPodGUIDs[5];
+            ObjectGuid MellicharGUID;
+            ObjectGuid WardensShieldGUID;
 
             uint8 ConversationState;
             uint8 StasisPodStates[5];
diff --git a/src/server/scripts/Outland/TempestKeep/botanica/boss_high_botanist_freywinn.cpp b/src/server/scripts/Outland/TempestKeep/botanica/boss_high_botanist_freywinn.cpp
index 0c322877808..c0591f7b874 100644
--- a/src/server/scripts/Outland/TempestKeep/botanica/boss_high_botanist_freywinn.cpp
+++ b/src/server/scripts/Outland/TempestKeep/botanica/boss_high_botanist_freywinn.cpp
@@ -66,8 +66,6 @@ class boss_high_botanist_freywinn : public CreatureScript
         {
             boss_high_botanist_freywinnAI(Creature* creature) : BossAI(creature, DATA_HIGH_BOTANIST_FREYWINN) { }
 
-            std::list<uint64> Adds_List;
-
             uint32 SummonSeedling_Timer;
             uint32 TreeForm_Timer;
             uint32 MoveCheck_Timer;
@@ -76,7 +74,7 @@ class boss_high_botanist_freywinn : public CreatureScript
 
             void Reset() override
             {
-                Adds_List.clear();
+                summons.DespawnAll();
 
                 SummonSeedling_Timer = 6000;
                 TreeForm_Timer = 30000;
@@ -93,7 +91,12 @@ class boss_high_botanist_freywinn : public CreatureScript
             void JustSummoned(Creature* summoned) override
             {
                 if (summoned->GetEntry() == NPC_FRAYER)
-                    Adds_List.push_back(summoned->GetGUID());
+                    summons.Summon(summoned);
+            }
+
+            void SummonedCreatureDespawn(Creature* summon) override
+            {
+                summons.Despawn(summon);
             }
 
             void DoSummonSeedling()
@@ -147,18 +150,15 @@ class boss_high_botanist_freywinn : public CreatureScript
                 {
                     if (MoveCheck_Timer <= diff)
                     {
-                        if (!Adds_List.empty())
+                        for (SummonList::iterator itr = summons.begin(); itr != summons.end(); ++itr)
                         {
-                            for (std::list<uint64>::iterator itr = Adds_List.begin(); itr != Adds_List.end(); ++itr)
+                            if (Unit* temp = ObjectAccessor::GetUnit(*me, *itr))
                             {
-                                if (Unit* temp = ObjectAccessor::GetUnit(*me, *itr))
+                                if (!temp->IsAlive())
                                 {
-                                    if (!temp->IsAlive())
-                                    {
-                                        Adds_List.erase(itr);
-                                        ++DeadAddsCount;
-                                        break;
-                                    }
+                                    summons.erase(itr);
+                                    ++DeadAddsCount;
+                                    break;
                                 }
                             }
                         }
@@ -168,7 +168,7 @@ class boss_high_botanist_freywinn : public CreatureScript
 
                         if (DeadAddsCount >= 3)
                         {
-                            Adds_List.clear();
+                            summons.DespawnAll();
                             DeadAddsCount = 0;
 
                             me->InterruptNonMeleeSpells(true);
diff --git a/src/server/scripts/Outland/TempestKeep/botanica/boss_warp_splinter.cpp b/src/server/scripts/Outland/TempestKeep/botanica/boss_warp_splinter.cpp
index 8bc9d0982e3..56c62bbf50f 100644
--- a/src/server/scripts/Outland/TempestKeep/botanica/boss_warp_splinter.cpp
+++ b/src/server/scripts/Outland/TempestKeep/botanica/boss_warp_splinter.cpp
@@ -74,10 +74,9 @@ class npc_warp_splinter_treant : public CreatureScript
         {
             npc_warp_splinter_treantAI(Creature* creature) : ScriptedAI(creature)
             {
-                WarpGuid = 0;
             }
 
-            uint64 WarpGuid;
+            ObjectGuid WarpGuid;
             uint32 check_Timer;
 
             void Reset() override
diff --git a/src/server/scripts/Outland/TempestKeep/botanica/instance_the_botanica.cpp b/src/server/scripts/Outland/TempestKeep/botanica/instance_the_botanica.cpp
index eb46211fa59..19453bd3925 100644
--- a/src/server/scripts/Outland/TempestKeep/botanica/instance_the_botanica.cpp
+++ b/src/server/scripts/Outland/TempestKeep/botanica/instance_the_botanica.cpp
@@ -29,11 +29,6 @@ class instance_the_botanica : public InstanceMapScript
             instance_the_botanica_InstanceMapScript(Map* map) : InstanceScript(map)
             {
                 SetHeaders(DataHeader);
-                CommanderSarannisGUID       = 0;
-                HighBotanistFreywinnGUID    = 0;
-                ThorngrinTheTenderGUID      = 0;
-                LajGUID                     = 0;
-                WarpSplinterGUID            = 0;
             }
 
             void OnCreatureCreate(Creature* creature) override
@@ -60,7 +55,7 @@ class instance_the_botanica : public InstanceMapScript
                 }
             }
 
-            uint64 GetData64(uint32 type) const override
+            ObjectGuid GetGuidData(uint32 type) const override
             {
                 switch (type)
                 {
@@ -78,7 +73,7 @@ class instance_the_botanica : public InstanceMapScript
                         break;
                 }
 
-                return 0;
+                return ObjectGuid::Empty;
             }
 
             bool SetBossState(uint32 type, EncounterState state) override
@@ -102,11 +97,11 @@ class instance_the_botanica : public InstanceMapScript
             }
 
         protected:
-            uint64 CommanderSarannisGUID;
-            uint64 HighBotanistFreywinnGUID;
-            uint64 ThorngrinTheTenderGUID;
-            uint64 LajGUID;
-            uint64 WarpSplinterGUID;
+            ObjectGuid CommanderSarannisGUID;
+            ObjectGuid HighBotanistFreywinnGUID;
+            ObjectGuid ThorngrinTheTenderGUID;
+            ObjectGuid LajGUID;
+            ObjectGuid WarpSplinterGUID;
         };
 
         InstanceScript* GetInstanceScript(InstanceMap* map) const override
diff --git a/src/server/scripts/Outland/boss_doomwalker.cpp b/src/server/scripts/Outland/boss_doomwalker.cpp
index a193e8ff880..7b72da0b02e 100644
--- a/src/server/scripts/Outland/boss_doomwalker.cpp
+++ b/src/server/scripts/Outland/boss_doomwalker.cpp
@@ -94,7 +94,7 @@ class boss_doomwalker : public CreatureScript
 
             {
                 if (who && who->GetTypeId() == TYPEID_PLAYER && me->IsValidAttackTarget(who))
-                    if (who->HasAura(SPELL_MARK_DEATH, 0))
+                    if (who->HasAura(SPELL_MARK_DEATH))
                         who->CastSpell(who, SPELL_AURA_DEATH, 1);
             }
 
diff --git a/src/server/scripts/Outland/zone_blades_edge_mountains.cpp b/src/server/scripts/Outland/zone_blades_edge_mountains.cpp
index 03b8e7e69c8..b5e54fe85f0 100644
--- a/src/server/scripts/Outland/zone_blades_edge_mountains.cpp
+++ b/src/server/scripts/Outland/zone_blades_edge_mountains.cpp
@@ -115,13 +115,12 @@ public:
     {
         npc_bloodmaul_bruteAI(Creature* creature) : ScriptedAI(creature)
         {
-            PlayerGUID = 0;
             hp30 = false;
         }
 
         void Reset() override
         {
-            PlayerGUID = 0;
+            PlayerGUID.Clear();
             hp30 = false;
         }
 
@@ -207,7 +206,7 @@ public:
 
         private:
             EventMap events;
-            uint64 PlayerGUID;
+            ObjectGuid PlayerGUID;
             bool hp30;
     };
 
@@ -617,7 +616,7 @@ class npc_simon_bunny : public CreatureScript
             uint8 gameLevel;
             uint8 fails;
             uint8 gameTicks;
-            uint64 playerGUID;
+            ObjectGuid playerGUID;
             uint32 clusterIds[SIMON_MAX_COLORS];
             float zCoordCorrection;
             float searchDistance;
@@ -727,7 +726,7 @@ class npc_simon_bunny : public CreatureScript
             }
 
             // Used for getting involved player guid. Parameter id is used for defining if is a large(Monument) or small(Relic) node
-            void SetGUID(uint64 guid, int32 id) override
+            void SetGUID(ObjectGuid guid, int32 id) override
             {
                 me->SetCanFly(true);
 
@@ -1131,7 +1130,6 @@ public:
     {
         npc_oscillating_frequency_scanner_master_bunnyAI(Creature* creature) : ScriptedAI(creature)
         {
-            playerGuid = 0;
             timer = 500;
         }
 
@@ -1170,7 +1168,7 @@ public:
         }
 
         private:
-            uint64 playerGuid;
+            ObjectGuid playerGuid;
             uint32 timer;
     };
 
diff --git a/src/server/scripts/Outland/zone_hellfire_peninsula.cpp b/src/server/scripts/Outland/zone_hellfire_peninsula.cpp
index 0da70207a04..01ad2ce334f 100644
--- a/src/server/scripts/Outland/zone_hellfire_peninsula.cpp
+++ b/src/server/scripts/Outland/zone_hellfire_peninsula.cpp
@@ -310,7 +310,7 @@ public:
         void Reset() override
         {
             checkTimer = 5000; //check for creature every 5 sec
-            helboarGUID = 0;
+            helboarGUID.Clear();
         }
 
         void MovementInform(uint32 type, uint32 id) override
@@ -352,7 +352,7 @@ public:
 
     private:
         uint32 checkTimer;
-        uint64 helboarGUID;
+        ObjectGuid helboarGUID;
     };
 
     CreatureAI* GetAI(Creature* creature) const override
diff --git a/src/server/scripts/Outland/zone_nagrand.cpp b/src/server/scripts/Outland/zone_nagrand.cpp
index a8a99d757e7..b8dd1393600 100644
--- a/src/server/scripts/Outland/zone_nagrand.cpp
+++ b/src/server/scripts/Outland/zone_nagrand.cpp
@@ -299,7 +299,7 @@ public:
           {
               corki->GetMotionMaster()->MovePoint(1, go->GetPositionX()+5, go->GetPositionY(), go->GetPositionZ());
               if (player)
-                  player->KilledMonsterCredit(NPC_CORKI_CREDIT_1, 0);
+                  player->KilledMonsterCredit(NPC_CORKI_CREDIT_1);
           }
       }
 
@@ -309,7 +309,7 @@ public:
           {
               corki->GetMotionMaster()->MovePoint(1, go->GetPositionX()-5, go->GetPositionY(), go->GetPositionZ());
               if (player)
-                  player->KilledMonsterCredit(NPC_CORKI_2, 0);
+                  player->KilledMonsterCredit(NPC_CORKI_2);
           }
       }
 
@@ -319,7 +319,7 @@ public:
           {
               corki->GetMotionMaster()->MovePoint(1, go->GetPositionX()+4, go->GetPositionY(), go->GetPositionZ());
               if (player)
-                  player->KilledMonsterCredit(NPC_CORKI_CREDIT_3, 0);
+                  player->KilledMonsterCredit(NPC_CORKI_CREDIT_3);
           }
       }
       return true;
@@ -594,7 +594,7 @@ class go_warmaul_prison : public GameObjectScript
 
             if (Creature* prisoner = go->FindNearestCreature(NPC_MAGHAR_PRISONER, 5.0f))
             {
-                player->KilledMonsterCredit(NPC_MAGHAR_PRISONER, 0);
+                player->KilledMonsterCredit(NPC_MAGHAR_PRISONER);
 
                 prisoner->AI()->Talk(SAY_FREE, player);
                 prisoner->DespawnOrUnsummon(6000);
diff --git a/src/server/scripts/Outland/zone_netherstorm.cpp b/src/server/scripts/Outland/zone_netherstorm.cpp
index f82c1f5fb58..eb2fae03202 100644
--- a/src/server/scripts/Outland/zone_netherstorm.cpp
+++ b/src/server/scripts/Outland/zone_netherstorm.cpp
@@ -83,9 +83,9 @@ public:
     {
         npc_commander_dawnforgeAI(Creature* creature) : ScriptedAI(creature) { }
 
-        uint64 PlayerGUID;
-        uint64 ardonisGUID;
-        uint64 pathaleonGUID;
+        ObjectGuid PlayerGUID;
+        ObjectGuid ardonisGUID;
+        ObjectGuid pathaleonGUID;
 
         uint32 Phase;
         uint32 PhaseSubphase;
@@ -94,9 +94,9 @@ public:
 
         void Reset() override
         {
-            PlayerGUID = 0;
-            ardonisGUID = 0;
-            pathaleonGUID = 0;
+            PlayerGUID.Clear();
+            ardonisGUID.Clear();
+            pathaleonGUID.Clear();
 
             Phase = 1;
             PhaseSubphase = 0;
@@ -415,7 +415,6 @@ public:
             Materialize = false;
             Drained = false;
             WeakPercent = 25;
-            PlayerGUID = 0;
             ManaBurnTimer = 5000;
         }
 
@@ -424,7 +423,7 @@ public:
         bool Drained;
         uint8 WeakPercent;
 
-        uint64 PlayerGUID;
+        ObjectGuid PlayerGUID;
 
         uint32 ManaBurnTimer;
 
@@ -435,7 +434,7 @@ public:
             Drained = false;
             WeakPercent = 25 + (rand32() % 16); // 25-40
 
-            PlayerGUID = 0;
+            PlayerGUID.Clear();
 
             ManaBurnTimer = 5000 + (rand32() % 3 * 1000); // 5-8 sec cd
 
@@ -725,7 +724,7 @@ class go_captain_tyralius_prison : public GameObjectScript
             go->UseDoorOrButton();
             if (Creature* tyralius = go->FindNearestCreature(NPC_CAPTAIN_TYRALIUS, 1.0f))
             {
-                player->KilledMonsterCredit(NPC_CAPTAIN_TYRALIUS, 0);
+                player->KilledMonsterCredit(NPC_CAPTAIN_TYRALIUS);
                 tyralius->AI()->Talk(SAY_FREE);
                 tyralius->DespawnOrUnsummon(8000);
             }
diff --git a/src/server/scripts/Outland/zone_shadowmoon_valley.cpp b/src/server/scripts/Outland/zone_shadowmoon_valley.cpp
index db34665e641..54a7455d3f8 100644
--- a/src/server/scripts/Outland/zone_shadowmoon_valley.cpp
+++ b/src/server/scripts/Outland/zone_shadowmoon_valley.cpp
@@ -80,7 +80,7 @@ public:
     {
         npc_mature_netherwing_drakeAI(Creature* creature) : ScriptedAI(creature) { }
 
-        uint64 uiPlayerGUID;
+        ObjectGuid uiPlayerGUID;
 
         bool bCanEat;
         bool bIsEating;
@@ -90,7 +90,7 @@ public:
 
         void Reset() override
         {
-            uiPlayerGUID = 0;
+            uiPlayerGUID.Clear();
 
             bCanEat = false;
             bIsEating = false;
@@ -154,7 +154,7 @@ public:
 
                         if (Player* player = ObjectAccessor::GetPlayer(*me, uiPlayerGUID))
                         {
-                            player->KilledMonsterCredit(NPC_EVENT_PINGER, 0);
+                            player->KilledMonsterCredit(NPC_EVENT_PINGER);
 
                             if (GameObject* go = player->FindNearestGameObject(GO_CARCASS, 10))
                                 go->Delete();
@@ -218,12 +218,11 @@ public:
     {
         npc_enslaved_netherwing_drakeAI(Creature* creature) : ScriptedAI(creature)
         {
-            PlayerGUID = 0;
             Tapped = false;
             Reset();
         }
 
-        uint64 PlayerGUID;
+        ObjectGuid PlayerGUID;
         uint32 FlyTimer;
         bool Tapped;
 
@@ -276,7 +275,7 @@ public:
                     if (player)
                         DoCast(player, SPELL_FORCE_OF_NELTHARAKU, true);
 
-                    PlayerGUID = 0;
+                    PlayerGUID.Clear();
                 }
                 me->SetVisible(false);
                 me->SetDisableGravity(false);
@@ -349,13 +348,13 @@ public:
     {
         npc_dragonmaw_peonAI(Creature* creature) : ScriptedAI(creature) { }
 
-        uint64 PlayerGUID;
+        ObjectGuid PlayerGUID;
         bool Tapped;
         uint32 PoisonTimer;
 
         void Reset() override
         {
-            PlayerGUID = 0;
+            PlayerGUID.Clear();
             Tapped = false;
             PoisonTimer = 0;
         }
@@ -400,7 +399,7 @@ public:
                     {
                         Player* player = ObjectAccessor::GetPlayer(*me, PlayerGUID);
                         if (player && player->GetQuestStatus(11020) == QUEST_STATUS_INCOMPLETE)
-                            player->KilledMonsterCredit(23209, 0);
+                            player->KilledMonsterCredit(23209);
                     }
                     PoisonTimer = 0;
                     me->DealDamage(me, me->GetHealth(), NULL, DIRECT_DAMAGE, SPELL_SCHOOL_MASK_NORMAL, NULL, false);
@@ -460,7 +459,7 @@ public:
             uint8 msg = player->CanStoreNewItem(NULL_BAG, NULL_SLOT, dest, 30658, 1, NULL);
             if (msg == EQUIP_ERR_OK)
             {
-                player->StoreNewItem(dest, 30658, 1, true);
+                player->StoreNewItem(dest, 30658, true);
                 player->PlayerTalkClass->ClearMenus();
             }
         }
@@ -470,7 +469,7 @@ public:
             uint8 msg = player->CanStoreNewItem(NULL_BAG, NULL_SLOT, dest, 30659, 1, NULL);
             if (msg == EQUIP_ERR_OK)
             {
-                player->StoreNewItem(dest, 30659, 1, true);
+                player->StoreNewItem(dest, 30659, true);
                 player->PlayerTalkClass->ClearMenus();
             }
         }
@@ -583,8 +582,8 @@ public:
     {
         npc_overlord_morghorAI(Creature* creature) : ScriptedAI(creature) { }
 
-        uint64 PlayerGUID;
-        uint64 IllidanGUID;
+        ObjectGuid PlayerGUID;
+        ObjectGuid IllidanGUID;
 
         uint32 ConversationTimer;
         uint32 Step;
@@ -593,8 +592,8 @@ public:
 
         void Reset() override
         {
-            PlayerGUID = 0;
-            IllidanGUID = 0;
+            PlayerGUID.Clear();
+            IllidanGUID.Clear();
 
             ConversationTimer = 0;
             Step = 0;
@@ -798,7 +797,7 @@ public:
                 case 30:
                     {
                         if (Creature* Yarzill = me->FindNearestCreature(C_YARZILL, 50.0f))
-                            Yarzill->SetTarget(0);
+                            Yarzill->SetTarget(ObjectGuid::Empty);
                         return 5000;
                     }
                     break;
@@ -814,7 +813,7 @@ public:
                     return 5000;
                     break;
                 case 33:
-                    me->SetTarget(0);
+                    me->SetTarget(ObjectGuid::Empty);
                     Reset();
                     return 100;
                     break;
@@ -1123,8 +1122,8 @@ public:
 
         uint8 AnimationCount;
 
-        uint64 LordIllidanGUID;
-        uint64 AggroTargetGUID;
+        ObjectGuid LordIllidanGUID;
+        ObjectGuid AggroTargetGUID;
 
         bool Timers;
 
@@ -1132,13 +1131,13 @@ public:
         {
             AnimationTimer = 4000;
             AnimationCount = 0;
-            LordIllidanGUID = 0;
-            AggroTargetGUID = 0;
+            LordIllidanGUID.Clear();
+            AggroTargetGUID.Clear();
             Timers = false;
 
             me->AddUnitState(UNIT_STATE_ROOT);
             me->SetFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NON_ATTACKABLE);
-            me->SetTarget(0);
+            me->SetTarget(ObjectGuid::Empty);
         }
 
         void EnterCombat(Unit* /*who*/) override { }
@@ -1274,7 +1273,7 @@ public:
     {
         npc_lord_illidan_stormrageAI(Creature* creature) : ScriptedAI(creature) { }
 
-        uint64 PlayerGUID;
+        ObjectGuid PlayerGUID;
 
         uint32 WaveTimer;
         uint32 AnnounceTimer;
@@ -1288,7 +1287,7 @@ public:
 
         void Reset() override
         {
-            PlayerGUID = 0;
+            PlayerGUID.Clear();
 
             WaveTimer = 10000;
             AnnounceTimer = 7000;
@@ -1416,13 +1415,13 @@ public:
     {
         npc_illidari_spawnAI(Creature* creature) : ScriptedAI(creature) { }
 
-        uint64 LordIllidanGUID;
+        ObjectGuid LordIllidanGUID;
         uint32 SpellTimer1, SpellTimer2, SpellTimer3;
         bool Timers;
 
         void Reset() override
         {
-            LordIllidanGUID = 0;
+            LordIllidanGUID.Clear();
             Timers = false;
         }
 
@@ -1727,7 +1726,7 @@ public:
 
                      if (Unit* owner = totemOspirits->GetOwner())
                          if (Player* player = owner->ToPlayer())
-                             player->KilledMonsterCredit(credit, 0);
+                             player->KilledMonsterCredit(credit);
                      DoCast(totemOspirits, SPELL_SOUL_CAPTURED);
                  }
             }
diff --git a/src/server/scripts/Outland/zone_terokkar_forest.cpp b/src/server/scripts/Outland/zone_terokkar_forest.cpp
index da7ae03a8ee..223a144e33b 100644
--- a/src/server/scripts/Outland/zone_terokkar_forest.cpp
+++ b/src/server/scripts/Outland/zone_terokkar_forest.cpp
@@ -323,7 +323,7 @@ public:
                 if (rand32() % 100 < 25)
                 {
                     me->SummonCreature(QUEST_TARGET, 0.0f, 0.0f, 0.0f, 0.0f, TEMPSUMMON_TIMED_DESPAWN_OUT_OF_COMBAT, 60000);
-                    player->KilledMonsterCredit(QUEST_TARGET, 0);
+                    player->KilledMonsterCredit(QUEST_TARGET);
                 }
                 else
                     me->SummonCreature(netherwebVictims[rand32() % 6], 0.0f, 0.0f, 0.0f, 0.0f, TEMPSUMMON_TIMED_DESPAWN_OUT_OF_COMBAT, 60000);
diff --git a/src/server/scripts/Pet/pet_dk.cpp b/src/server/scripts/Pet/pet_dk.cpp
index b24336cb33c..edbec51f4b1 100644
--- a/src/server/scripts/Pet/pet_dk.cpp
+++ b/src/server/scripts/Pet/pet_dk.cpp
@@ -59,7 +59,7 @@ class npc_pet_dk_ebon_gargoyle : public CreatureScript
                 Initialize();
 
                 CasterAI::InitializeAI();
-                uint64 ownerGuid = me->GetOwnerGUID();
+                ObjectGuid ownerGuid = me->GetOwnerGUID();
                 if (!ownerGuid)
                     return;
 
@@ -69,7 +69,7 @@ class npc_pet_dk_ebon_gargoyle : public CreatureScript
                 Trinity::UnitListSearcher<Trinity::AnyUnfriendlyUnitInObjectRangeCheck> searcher(me, targets, u_check);
                 me->VisitNearbyObject(30.0f, searcher);
                 for (std::list<Unit*>::const_iterator iter = targets.begin(); iter != targets.end(); ++iter)
-                    if ((*iter)->GetAura(SPELL_DK_SUMMON_GARGOYLE_1, ownerGuid))
+                    if ((*iter)->HasAura(SPELL_DK_SUMMON_GARGOYLE_1, ownerGuid))
                     {
                         me->Attack((*iter), false);
                         break;
diff --git a/src/server/scripts/Pet/pet_generic.cpp b/src/server/scripts/Pet/pet_generic.cpp
index d0e950dec32..538dca8e4b9 100644
--- a/src/server/scripts/Pet/pet_generic.cpp
+++ b/src/server/scripts/Pet/pet_generic.cpp
@@ -41,17 +41,11 @@ class npc_pet_gen_mojo : public CreatureScript
         {
             npc_pet_gen_mojoAI(Creature* creature) : ScriptedAI(creature)
             {
-                Initialize();
-            }
-
-            void Initialize()
-            {
-                _victimGUID = 0;
             }
 
             void Reset() override
             {
-                Initialize();
+                _victimGUID.Clear();
 
                 if (Unit* owner = me->GetOwner())
                     me->GetMotionMaster()->MoveFollow(owner, 0.0f, 0.0f);
@@ -84,7 +78,7 @@ class npc_pet_gen_mojo : public CreatureScript
             }
 
         private:
-            uint64 _victimGUID;
+            ObjectGuid _victimGUID;
         };
 
         CreatureAI* GetAI(Creature* creature) const override
diff --git a/src/server/scripts/Spells/spell_generic.cpp b/src/server/scripts/Spells/spell_generic.cpp
index 94d2a95f618..db8a9a5ace2 100644
--- a/src/server/scripts/Spells/spell_generic.cpp
+++ b/src/server/scripts/Spells/spell_generic.cpp
@@ -278,7 +278,7 @@ class spell_gen_animal_blood : public SpellScriptLoader
             void OnApply(AuraEffect const* /*aurEff*/, AuraEffectHandleModes /*mode*/)
             {
                 // Remove all auras with spell id 46221, except the one currently being applied
-                while (Aura* aur = GetUnitOwner()->GetOwnedAura(SPELL_ANIMAL_BLOOD, 0, 0, 0, GetAura()))
+                while (Aura* aur = GetUnitOwner()->GetOwnedAura(SPELL_ANIMAL_BLOOD, ObjectGuid::Empty, ObjectGuid::Empty, 0, GetAura()))
                     GetUnitOwner()->RemoveOwnedAura(aur);
             }
 
diff --git a/src/server/scripts/Spells/spell_mage.cpp b/src/server/scripts/Spells/spell_mage.cpp
index f72f6435b0c..d72c6d5c775 100644
--- a/src/server/scripts/Spells/spell_mage.cpp
+++ b/src/server/scripts/Spells/spell_mage.cpp
@@ -670,7 +670,7 @@ class spell_mage_glyph_of_icy_veins : public SpellScriptLoader
             {
                 PreventDefaultAction();
 
-                GetTarget()->RemoveAurasByType(SPELL_AURA_HASTE_SPELLS, 0, 0, true, false);
+                GetTarget()->RemoveAurasByType(SPELL_AURA_HASTE_SPELLS, ObjectGuid::Empty, 0, true, false);
                 GetTarget()->RemoveAurasByType(SPELL_AURA_MOD_DECREASE_SPEED);
             }
 
@@ -708,7 +708,7 @@ class spell_mage_glyph_of_polymorph : public SpellScriptLoader
                 PreventDefaultAction();
                 Unit* target = eventInfo.GetProcTarget();
 
-                target->RemoveAurasByType(SPELL_AURA_PERIODIC_DAMAGE, 0, target->GetAura(SPELL_PRIEST_SHADOW_WORD_DEATH)); // SW:D shall not be removed.
+                target->RemoveAurasByType(SPELL_AURA_PERIODIC_DAMAGE, ObjectGuid::Empty, target->GetAura(SPELL_PRIEST_SHADOW_WORD_DEATH)); // SW:D shall not be removed.
                 target->RemoveAurasByType(SPELL_AURA_PERIODIC_DAMAGE_PERCENT);
                 target->RemoveAurasByType(SPELL_AURA_PERIODIC_LEECH);
             }
diff --git a/src/server/scripts/Spells/spell_priest.cpp b/src/server/scripts/Spells/spell_priest.cpp
index 3bd61ddf465..0f78790bcee 100644
--- a/src/server/scripts/Spells/spell_priest.cpp
+++ b/src/server/scripts/Spells/spell_priest.cpp
@@ -710,7 +710,7 @@ class spell_pri_mind_sear : public SpellScriptLoader
 
             void FilterTargets(std::list<WorldObject*>& unitList)
             {
-                unitList.remove_if(Trinity::ObjectGUIDCheck(GetCaster()->GetUInt64Value(UNIT_FIELD_CHANNEL_OBJECT)));
+                unitList.remove_if(Trinity::ObjectGUIDCheck(GetCaster()->GetChannelObjectGuid()));
             }
 
             void Register() override
diff --git a/src/server/scripts/Spells/spell_quest.cpp b/src/server/scripts/Spells/spell_quest.cpp
index 92eeef5e8a8..9c65567fe7f 100644
--- a/src/server/scripts/Spells/spell_quest.cpp
+++ b/src/server/scripts/Spells/spell_quest.cpp
@@ -754,7 +754,7 @@ class spell_q12937_relief_for_the_fallen : public SpellScriptLoader
                 if (Creature* target = GetHitCreature())
                 {
                     caster->CastSpell(caster, SPELL_TRIGGER_AID_OF_THE_EARTHEN, true, NULL);
-                    caster->KilledMonsterCredit(NPC_FALLEN_EARTHEN_DEFENDER, 0);
+                    caster->KilledMonsterCredit(NPC_FALLEN_EARTHEN_DEFENDER);
                     target->DespawnOrUnsummon();
                 }
             }
@@ -885,7 +885,7 @@ class spell_q12659_ahunaes_knife : public SpellScriptLoader
                 if (Creature* target = GetHitCreature())
                 {
                     target->DespawnOrUnsummon();
-                    caster->KilledMonsterCredit(NPC_SCALPS_KC_BUNNY, 0);
+                    caster->KilledMonsterCredit(NPC_SCALPS_KC_BUNNY);
                 }
             }
 
@@ -929,7 +929,7 @@ class spell_q9874_liquid_fire : public SpellScriptLoader
                 if (Creature* target = GetHitCreature())
                     if (target && !target->HasAura(SPELL_FLAMES))
                     {
-                        caster->KilledMonsterCredit(NPC_VILLAGER_KILL_CREDIT, 0);
+                        caster->KilledMonsterCredit(NPC_VILLAGER_KILL_CREDIT);
                         target->CastSpell(target, SPELL_FLAMES, true);
                         target->DespawnOrUnsummon(60000);
                     }
@@ -973,7 +973,7 @@ class spell_q12805_lifeblood_dummy : public SpellScriptLoader
                 Player* caster = GetCaster()->ToPlayer();
                 if (Creature* target = GetHitCreature())
                 {
-                    caster->KilledMonsterCredit(NPC_SHARD_KILL_CREDIT, 0);
+                    caster->KilledMonsterCredit(NPC_SHARD_KILL_CREDIT);
                     target->CastSpell(target, uint32(GetEffectValue()), true);
                     target->DespawnOrUnsummon(2000);
                 }
@@ -1016,7 +1016,7 @@ class spell_q13280_13283_plant_battle_standard: public SpellScriptLoader
                 Unit* caster = GetCaster();
                 if (caster->IsVehicle())
                     if (Unit* player = caster->GetVehicleKit()->GetPassenger(0))
-                         player->ToPlayer()->KilledMonsterCredit(NPC_KING_OF_THE_MOUNTAINT_KC, 0);
+                         player->ToPlayer()->KilledMonsterCredit(NPC_KING_OF_THE_MOUNTAINT_KC);
             }
 
             void Register() override
@@ -1356,7 +1356,7 @@ class spell_q12372_destabilize_azure_dragonshrine_dummy : public SpellScriptLoad
                         if (Vehicle* vehicle = caster->GetVehicleKit())
                             if (Unit* passenger = vehicle->GetPassenger(0))
                                 if (Player* player = passenger->ToPlayer())
-                                    player->KilledMonsterCredit(NPC_WYRMREST_TEMPLE_CREDIT, 0);
+                                    player->KilledMonsterCredit(NPC_WYRMREST_TEMPLE_CREDIT);
             }
 
             void Register() override
@@ -2348,6 +2348,52 @@ class spell_q14100_q14111_make_player_destroy_totems : public SpellScriptLoader
         }
 };
 
+enum Fumping
+{
+    SPELL_SUMMON_SAND_GNOME  = 39240,
+    SPELL_SUMMON_BONE_SLICER = 39241
+};
+
+// 39238 - Fumping
+class spell_q10929_fumping : SpellScriptLoader
+{
+    public:
+        spell_q10929_fumping() : SpellScriptLoader("spell_q10929_fumping") { }
+
+        class spell_q10929_fumpingAuraScript : public AuraScript
+        {
+            PrepareAuraScript(spell_q10929_fumpingAuraScript);
+
+            bool Validate(SpellInfo const* /*spell*/) override
+            {
+                if (!sSpellMgr->GetSpellInfo(SPELL_SUMMON_SAND_GNOME))
+                    return false;
+                if (!sSpellMgr->GetSpellInfo(SPELL_SUMMON_BONE_SLICER))
+                    return false;
+                return true;
+            }
+
+            void HandleEffectRemove(AuraEffect const* /*aurEff*/, AuraEffectHandleModes /*mode*/)
+            {
+                if (GetTargetApplication()->GetRemoveMode() != AURA_REMOVE_BY_EXPIRE)
+                    return;
+
+                if (Unit* caster = GetCaster())
+                    caster->CastSpell(caster, urand(SPELL_SUMMON_SAND_GNOME, SPELL_SUMMON_BONE_SLICER), true);
+            }
+
+        void Register() override
+        {
+            OnEffectRemove += AuraEffectRemoveFn(spell_q10929_fumpingAuraScript::HandleEffectRemove, EFFECT_0, SPELL_AURA_DUMMY, AURA_EFFECT_HANDLE_REAL);
+        }
+    };
+
+    AuraScript* GetAuraScript() const override
+    {
+        return new spell_q10929_fumpingAuraScript();
+    }
+};
+
 void AddSC_quest_spell_scripts()
 {
     new spell_q55_sacred_cleansing();
@@ -2405,4 +2451,5 @@ void AddSC_quest_spell_scripts()
     new spell_q12919_gymers_throw();
     new spell_q13400_illidan_kill_master();
     new spell_q14100_q14111_make_player_destroy_totems();
+    new spell_q10929_fumping();
 }
diff --git a/src/server/scripts/Spells/spell_rogue.cpp b/src/server/scripts/Spells/spell_rogue.cpp
index e8546c4214e..175a3c4f361 100644
--- a/src/server/scripts/Spells/spell_rogue.cpp
+++ b/src/server/scripts/Spells/spell_rogue.cpp
@@ -400,7 +400,7 @@ class spell_rog_killing_spree : public SpellScriptLoader
             {
                 while (!_targets.empty())
                 {
-                    uint64 guid = Trinity::Containers::SelectRandomContainerElement(_targets);
+                    ObjectGuid guid = Trinity::Containers::SelectRandomContainerElement(_targets);
                     if (Unit* target = ObjectAccessor::GetUnit(*GetTarget(), guid))
                     {
                         GetTarget()->CastSpell(target, SPELL_ROGUE_KILLING_SPREE_TELEPORT, true);
@@ -431,7 +431,7 @@ class spell_rog_killing_spree : public SpellScriptLoader
             }
 
         private:
-            std::list<uint64> _targets;
+            GuidList _targets;
         };
 
         AuraScript* GetAuraScript() const override
diff --git a/src/server/scripts/Spells/spell_warlock.cpp b/src/server/scripts/Spells/spell_warlock.cpp
index 4c6e2b942da..42acb474169 100644
--- a/src/server/scripts/Spells/spell_warlock.cpp
+++ b/src/server/scripts/Spells/spell_warlock.cpp
@@ -1001,7 +1001,7 @@ class spell_warl_seduction : public SpellScriptLoader
                 {
                     if (caster->GetOwner() && caster->GetOwner()->HasAura(SPELL_WARLOCK_GLYPH_OF_SUCCUBUS))
                     {
-                        target->RemoveAurasByType(SPELL_AURA_PERIODIC_DAMAGE, 0, target->GetAura(SPELL_PRIEST_SHADOW_WORD_DEATH)); // SW:D shall not be removed.
+                        target->RemoveAurasByType(SPELL_AURA_PERIODIC_DAMAGE, ObjectGuid::Empty, target->GetAura(SPELL_PRIEST_SHADOW_WORD_DEATH)); // SW:D shall not be removed.
                         target->RemoveAurasByType(SPELL_AURA_PERIODIC_DAMAGE_PERCENT);
                         target->RemoveAurasByType(SPELL_AURA_PERIODIC_LEECH);
                     }
diff --git a/src/server/scripts/Spells/spell_warrior.cpp b/src/server/scripts/Spells/spell_warrior.cpp
index ecbc6ca1bdc..4bf57d116fe 100644
--- a/src/server/scripts/Spells/spell_warrior.cpp
+++ b/src/server/scripts/Spells/spell_warrior.cpp
@@ -245,13 +245,13 @@ class spell_warr_deep_wounds : public SpellScriptLoader
                     ApplyPct(damage, 16 * GetSpellInfo()->GetRank());
 
                     SpellInfo const* spellInfo = sSpellMgr->EnsureSpellInfo(SPELL_WARRIOR_DEEP_WOUNDS_PERIODIC);
-                    uint32 ticks = spellInfo->GetDuration() / spellInfo->Effects[EFFECT_0].Amplitude;
+                    uint32 ticks = uint32(spellInfo->GetDuration()) / spellInfo->Effects[EFFECT_0].Amplitude;
 
                     // Add remaining ticks to damage done
                     if (AuraEffect const* aurEff = target->GetAuraEffect(SPELL_WARRIOR_DEEP_WOUNDS_PERIODIC, EFFECT_0, caster->GetGUID()))
-                        damage += aurEff->GetDamage() * (ticks - aurEff->GetTickNumber());
+                        damage += aurEff->GetDamage() * int32(ticks - aurEff->GetTickNumber());
 
-                    damage /= ticks;
+                    damage /= int32(ticks);
 
                     caster->CastCustomSpell(target, SPELL_WARRIOR_DEEP_WOUNDS_PERIODIC, &damage, NULL, NULL, true);
                 }
diff --git a/src/server/scripts/World/action_ip_logger.cpp b/src/server/scripts/World/action_ip_logger.cpp
index 057f3d6ee36..2977f4e974a 100644
--- a/src/server/scripts/World/action_ip_logger.cpp
+++ b/src/server/scripts/World/action_ip_logger.cpp
@@ -252,24 +252,24 @@ public:
     CharacterDeleteActionIpLogger() : PlayerScript("CharacterDeleteActionIpLogger") { }
 
     // CHARACTER_DELETE = 10
-    void OnDelete(uint64 guid, uint32 accountId) override
+    void OnDelete(ObjectGuid guid, uint32 accountId) override
     {
         DeleteIPLogAction(guid, accountId, CHARACTER_DELETE);
     }
 
     // CHARACTER_FAILED_DELETE = 11
-    void OnFailedDelete(uint64 guid, uint32 accountId) override
+    void OnFailedDelete(ObjectGuid guid, uint32 accountId) override
     {
         DeleteIPLogAction(guid, accountId, CHARACTER_FAILED_DELETE);
     }
 
-    void DeleteIPLogAction(uint64 guid, uint32 playerGuid, IPLoggingTypes aType)
+    void DeleteIPLogAction(ObjectGuid guid, uint32 playerGuid, IPLoggingTypes aType)
     {
         // Action IP Logger is only intialized if config is set up
         // Else, this script isn't loaded in the first place: We require no config check.
 
         // We declare all the required variables
-        uint32 characterGuid = GUID_LOPART(guid); // We have no access to any member function of Player* or WorldSession*. So use old-fashioned way.
+        uint32 characterGuid = guid.GetCounter(); // We have no access to any member function of Player* or WorldSession*. So use old-fashioned way.
         // Query playerGuid/accountId, as we only have characterGuid
         std::string systemNote = "ERROR"; // "ERROR" is a placeholder here. We change it later.
 
diff --git a/src/server/scripts/World/areatrigger_scripts.cpp b/src/server/scripts/World/areatrigger_scripts.cpp
index dcba4cf9573..a1e328ebaf0 100644
--- a/src/server/scripts/World/areatrigger_scripts.cpp
+++ b/src/server/scripts/World/areatrigger_scripts.cpp
@@ -431,8 +431,8 @@ class AreaTrigger_at_frostgrips_hollow : public AreaTriggerScript
 public:
     AreaTrigger_at_frostgrips_hollow() : AreaTriggerScript("at_frostgrips_hollow")
     {
-        stormforgedMonitorGUID = 0;
-        stormforgedEradictorGUID = 0;
+        stormforgedMonitorGUID.Clear();
+        stormforgedEradictorGUID.Clear();
     }
 
     bool OnTrigger(Player* player, AreaTriggerEntry const* /* trigger */) override
@@ -469,8 +469,8 @@ public:
     }
 
 private:
-    uint64 stormforgedMonitorGUID;
-    uint64 stormforgedEradictorGUID;
+    ObjectGuid stormforgedMonitorGUID;
+    ObjectGuid stormforgedEradictorGUID;
 };
 
 void AddSC_areatrigger_scripts()
diff --git a/src/server/scripts/World/boss_emerald_dragons.cpp b/src/server/scripts/World/boss_emerald_dragons.cpp
index a00c9465a05..01d36783d20 100644
--- a/src/server/scripts/World/boss_emerald_dragons.cpp
+++ b/src/server/scripts/World/boss_emerald_dragons.cpp
@@ -418,7 +418,7 @@ class npc_spirit_shade : public CreatureScript
 
         struct npc_spirit_shadeAI : public PassiveAI
         {
-            npc_spirit_shadeAI(Creature* creature) : PassiveAI(creature), _summonerGuid(0)
+            npc_spirit_shadeAI(Creature* creature) : PassiveAI(creature), _summonerGuid()
             {
             }
 
@@ -430,7 +430,7 @@ class npc_spirit_shade : public CreatureScript
 
             void MovementInform(uint32 moveType, uint32 data) override
             {
-                if (moveType == FOLLOW_MOTION_TYPE && data == _summonerGuid)
+                if (moveType == FOLLOW_MOTION_TYPE && data == _summonerGuid.GetCounter())
                 {
                     me->CastSpell((Unit*)NULL, SPELL_DARK_OFFERING, false);
                     me->DespawnOrUnsummon(1000);
@@ -438,7 +438,7 @@ class npc_spirit_shade : public CreatureScript
             }
 
         private:
-            uint64 _summonerGuid;
+            ObjectGuid _summonerGuid;
         };
 
         CreatureAI* GetAI(Creature* creature) const override
diff --git a/src/server/scripts/World/go_scripts.cpp b/src/server/scripts/World/go_scripts.cpp
index 1fdd314a9ed..65cb2c2abce 100644
--- a/src/server/scripts/World/go_scripts.cpp
+++ b/src/server/scripts/World/go_scripts.cpp
@@ -770,7 +770,7 @@ public:
             return false;
 
         pPrisoner->DisappearAndDie();
-        player->KilledMonsterCredit(NPC_EBON_BLADE_PRISONER_HUMAN, 0);
+        player->KilledMonsterCredit(NPC_EBON_BLADE_PRISONER_HUMAN);
         switch (pPrisoner->GetEntry())
         {
             case NPC_EBON_BLADE_PRISONER_HUMAN:
@@ -917,7 +917,7 @@ public:
         if (qInfo)
         {
             /// @todo prisoner should help player for a short period of time
-            player->KilledMonsterCredit(qInfo->RequiredNpcOrGo[0], 0);
+            player->KilledMonsterCredit(qInfo->RequiredNpcOrGo[0]);
             pPrisoner->DisappearAndDie();
         }
         return true;
@@ -949,7 +949,7 @@ public:
             if (pTadpole)
             {
                 pTadpole->DisappearAndDie();
-                player->KilledMonsterCredit(NPC_WINTERFIN_TADPOLE, 0);
+                player->KilledMonsterCredit(NPC_WINTERFIN_TADPOLE);
                 //FIX: Summon minion tadpole
             }
         }
@@ -1083,7 +1083,7 @@ class go_gjalerbron_cage : public GameObjectScript
             {
                 if (Creature* prisoner = go->FindNearestCreature(NPC_GJALERBRON_PRISONER, 5.0f))
                 {
-                    player->KilledMonsterCredit(NPC_GJALERBRON_PRISONER, 0);
+                    player->KilledMonsterCredit(NPC_GJALERBRON_PRISONER);
 
                     prisoner->AI()->Talk(SAY_FREE);
                     prisoner->DespawnOrUnsummon(6000);
diff --git a/src/server/scripts/World/guards.cpp b/src/server/scripts/World/guards.cpp
index bd953a285ab..13d811f3ff1 100644
--- a/src/server/scripts/World/guards.cpp
+++ b/src/server/scripts/World/guards.cpp
@@ -280,7 +280,7 @@ public:
         {
             banishTimer = 5000;
             exileTimer = 8500;
-            playerGUID = 0;
+            playerGUID.Clear();
             canTeleport = false;
         }
 
@@ -303,7 +303,7 @@ public:
                         temp->CastSpell(temp, SPELL_EXILE, true);
                         temp->CastSpell(temp, SPELL_BANISH_TELEPORT, true);
                     }
-                    playerGUID = 0;
+                    playerGUID.Clear();
                     exileTimer = 8500;
                     canTeleport = false;
                 } else exileTimer -= diff;
@@ -327,7 +327,7 @@ public:
     private:
         uint32 exileTimer;
         uint32 banishTimer;
-        uint64 playerGUID;
+        ObjectGuid playerGUID;
         bool canTeleport;
     };
 
@@ -353,7 +353,7 @@ public:
         {
             banishTimer = 5000;
             exileTimer = 8500;
-            playerGUID = 0;
+            playerGUID.Clear();
             canTeleport = false;
         }
 
@@ -376,7 +376,7 @@ public:
                         temp->CastSpell(temp, SPELL_EXILE, true);
                         temp->CastSpell(temp, SPELL_BANISH_TELEPORT, true);
                     }
-                    playerGUID = 0;
+                    playerGUID.Clear();
                     exileTimer = 8500;
                     canTeleport = false;
                 } else exileTimer -= diff;
@@ -399,7 +399,7 @@ public:
     private:
         uint32 exileTimer;
         uint32 banishTimer;
-        uint64 playerGUID;
+        ObjectGuid playerGUID;
         bool canTeleport;
     };
 
diff --git a/src/server/scripts/World/item_scripts.cpp b/src/server/scripts/World/item_scripts.cpp
index 45886fd4361..f9cd44ca88c 100644
--- a/src/server/scripts/World/item_scripts.cpp
+++ b/src/server/scripts/World/item_scripts.cpp
@@ -349,7 +349,7 @@ public:
             {
                 pMammoth->AI()->DoAction(1);
                 pTrap->SetGoState(GO_STATE_READY);
-                player->KilledMonsterCredit(NPC_TRAPPED_MAMMOTH_CALF, 0);
+                player->KilledMonsterCredit(NPC_TRAPPED_MAMMOTH_CALF);
                 return true;
             }
         }
diff --git a/src/server/scripts/World/npcs_special.cpp b/src/server/scripts/World/npcs_special.cpp
index d04b25147c7..e733f5581f9 100644
--- a/src/server/scripts/World/npcs_special.cpp
+++ b/src/server/scripts/World/npcs_special.cpp
@@ -124,7 +124,7 @@ public:
         npc_air_force_botsAI(Creature* creature) : ScriptedAI(creature)
         {
             SpawnAssoc = NULL;
-            SpawnedGUID = 0;
+            SpawnedGUID.Clear();
 
             // find the correct spawnhandling
             static uint32 entryCount = sizeof(spawnAssociations) / sizeof(SpawnAssociation);
@@ -154,7 +154,7 @@ public:
         }
 
         SpawnAssociation* SpawnAssoc;
-        uint64 SpawnedGUID;
+        ObjectGuid SpawnedGUID;
 
         void Reset() override { }
 
@@ -196,11 +196,11 @@ public:
                 if (!playerTarget)
                     return;
 
-                Creature* lastSpawnedGuard = SpawnedGUID == 0 ? NULL : GetSummonedGuard();
+                Creature* lastSpawnedGuard = SpawnedGUID.IsEmpty() ? NULL : GetSummonedGuard();
 
                 // prevent calling Unit::GetUnit at next MoveInLineOfSight call - speedup
                 if (!lastSpawnedGuard)
-                    SpawnedGUID = 0;
+                    SpawnedGUID.Clear();
 
                 switch (SpawnAssoc->spawnType)
                 {
@@ -591,7 +591,7 @@ public:
 
         void Initialize()
         {
-            PlayerGUID = 0;
+            PlayerGUID.Clear();
 
             SummonPatientTimer = 10000;
             SummonPatientCount = 0;
@@ -604,7 +604,7 @@ public:
             Event = false;
         }
 
-        uint64 PlayerGUID;
+        ObjectGuid PlayerGUID;
 
         uint32 SummonPatientTimer;
         uint32 SummonPatientCount;
@@ -613,7 +613,7 @@ public:
 
         bool Event;
 
-        std::list<uint64> Patients;
+        GuidList Patients;
         std::vector<Location*> Coordinates;
 
         void Reset() override
@@ -684,10 +684,9 @@ public:
                     {
                         if (!Patients.empty())
                         {
-                            std::list<uint64>::const_iterator itr;
-                            for (itr = Patients.begin(); itr != Patients.end(); ++itr)
+                            for (GuidList::const_iterator itr = Patients.begin(); itr != Patients.end(); ++itr)
                             {
-                                if (Creature* patient = ObjectAccessor::GetCreature((*me), *itr))
+                                if (Creature* patient = ObjectAccessor::GetCreature(*me, *itr))
                                     patient->setDeathState(JUST_DIED);
                             }
                         }
@@ -743,11 +742,11 @@ public:
 
         void Initialize()
         {
-            DoctorGUID = 0;
+            DoctorGUID.Clear();
             Coord = NULL;
         }
 
-        uint64 DoctorGUID;
+        ObjectGuid DoctorGUID;
         Location* Coord;
 
         void Reset() override
@@ -944,7 +943,7 @@ public:
             Reset();
         }
 
-        uint64 CasterGUID;
+        ObjectGuid CasterGUID;
 
         bool IsHealed;
         bool CanRun;
@@ -953,7 +952,7 @@ public:
 
         void Reset() override
         {
-            CasterGUID = 0;
+            CasterGUID.Clear();
 
             IsHealed = false;
             CanRun = false;
@@ -1101,7 +1100,7 @@ public:
                                 break;
                         }
 
-                        Start(false, true, true);
+                        Start(false, true);
                     }
                     else
                         EnterEvadeMode();                       //something went wrong
@@ -1473,7 +1472,7 @@ public:
         }
 
         EventMap _events;
-        std::unordered_map<uint64, time_t> _damageTimes;
+        std::unordered_map<ObjectGuid, time_t> _damageTimes;
 
         void Reset() override
         {
@@ -1520,7 +1519,7 @@ public:
                     case EVENT_TD_CHECK_COMBAT:
                     {
                         time_t now = time(NULL);
-                        for (std::unordered_map<uint64, time_t>::iterator itr = _damageTimes.begin(); itr != _damageTimes.end();)
+                        for (std::unordered_map<ObjectGuid, time_t>::iterator itr = _damageTimes.begin(); itr != _damageTimes.end();)
                         {
                             // If unit has not dealt damage to training dummy for 5 seconds, remove him from combat
                             if (itr->second < now - 5)
@@ -2256,7 +2255,7 @@ public:
         void Initialize()
         {
             inLove = false;
-            rabbitGUID = 0;
+            rabbitGUID.Clear();
             jumpTimer = urand(5000, 10000);
             bunnyTimer = urand(10000, 20000);
             searchTimer = urand(5000, 10000);
@@ -2266,7 +2265,7 @@ public:
         uint32 jumpTimer;
         uint32 bunnyTimer;
         uint32 searchTimer;
-        uint64 rabbitGUID;
+        ObjectGuid rabbitGUID;
 
         void Reset() override
         {
@@ -2341,7 +2340,7 @@ public:
     {
         npc_imp_in_a_ballAI(Creature* creature) : ScriptedAI(creature)
         {
-            summonerGUID = 0;
+            summonerGUID.Clear();
         }
 
         void IsSummonedBy(Unit* summoner) override
@@ -2369,7 +2368,7 @@ public:
 
     private:
         EventMap events;
-        uint64 summonerGUID;
+        ObjectGuid summonerGUID;
     };
 
     CreatureAI* GetAI(Creature* creature) const override
diff --git a/src/server/shared/DataStores/DBCFileLoader.cpp b/src/server/shared/DataStores/DBCFileLoader.cpp
index f8c8693216d..ea9bf23d383 100644
--- a/src/server/shared/DataStores/DBCFileLoader.cpp
+++ b/src/server/shared/DataStores/DBCFileLoader.cpp
@@ -114,11 +114,9 @@ bool DBCFileLoader::Load(const char* filename, const char* fmt)
 
 DBCFileLoader::~DBCFileLoader()
 {
-    if (data)
-        delete [] data;
+    delete[] data;
 
-    if (fieldsOffset)
-        delete [] fieldsOffset;
+    delete[] fieldsOffset;
 }
 
 DBCFileLoader::Record DBCFileLoader::getRecord(size_t id)
diff --git a/src/server/shared/Database/DatabaseWorkerPool.h b/src/server/shared/Database/DatabaseWorkerPool.h
index 5548e44c925..61385d92437 100644
--- a/src/server/shared/Database/DatabaseWorkerPool.h
+++ b/src/server/shared/Database/DatabaseWorkerPool.h
@@ -76,13 +76,12 @@ class DatabaseWorkerPool
 
         bool Open(const std::string& infoString, uint8 async_threads, uint8 synch_threads)
         {
-            bool res = true;
             _connectionInfo = new MySQLConnectionInfo(infoString);
 
             TC_LOG_INFO("sql.driver", "Opening DatabasePool '%s'. Asynchronous connections: %u, synchronous connections: %u.",
                 GetDatabaseName(), async_threads, synch_threads);
 
-            res = OpenConnections(IDX_ASYNC, async_threads);
+            bool res = OpenConnections(IDX_ASYNC, async_threads);
 
             if (!res)
                 return res;
diff --git a/src/server/shared/Database/Implementation/CharacterDatabase.cpp b/src/server/shared/Database/Implementation/CharacterDatabase.cpp
index 073b1fe3f89..061415ae607 100644
--- a/src/server/shared/Database/Implementation/CharacterDatabase.cpp
+++ b/src/server/shared/Database/Implementation/CharacterDatabase.cpp
@@ -34,7 +34,7 @@ void CharacterDatabaseConnection::DoPrepareStatements()
     PrepareStatement(CHAR_INS_CHARACTER_BAN, "INSERT INTO character_banned VALUES (?, UNIX_TIMESTAMP(), UNIX_TIMESTAMP()+?, ?, ?, 1)", CONNECTION_ASYNC);
     PrepareStatement(CHAR_UPD_CHARACTER_BAN, "UPDATE character_banned SET active = 0 WHERE guid = ? AND active != 0", CONNECTION_ASYNC);
     PrepareStatement(CHAR_DEL_CHARACTER_BAN, "DELETE cb FROM character_banned cb INNER JOIN characters c ON c.guid = cb.guid WHERE c.account = ?", CONNECTION_ASYNC);
-    PrepareStatement(CHAR_SEL_BANINFO, "SELECT FROM_UNIXTIME(bandate), unbandate-bandate, active, unbandate, banreason, bannedby FROM character_banned WHERE guid = ? ORDER BY bandate ASC", CONNECTION_SYNCH);
+    PrepareStatement(CHAR_SEL_BANINFO, "SELECT bandate, unbandate-bandate, active, unbandate, banreason, bannedby FROM character_banned WHERE guid = ? ORDER BY bandate ASC", CONNECTION_SYNCH);
     PrepareStatement(CHAR_SEL_GUID_BY_NAME_FILTER, "SELECT guid, name FROM characters WHERE name LIKE CONCAT('%%', ?, '%%')", CONNECTION_SYNCH);
     PrepareStatement(CHAR_SEL_BANINFO_LIST, "SELECT bandate, unbandate, bannedby, banreason FROM character_banned WHERE guid = ? ORDER BY unbandate", CONNECTION_SYNCH);
     PrepareStatement(CHAR_SEL_BANNED_NAME, "SELECT characters.name FROM characters, character_banned WHERE character_banned.guid = ? AND character_banned.guid = characters.guid", CONNECTION_SYNCH);
diff --git a/src/server/shared/Database/Implementation/WorldDatabase.cpp b/src/server/shared/Database/Implementation/WorldDatabase.cpp
index 1245187e7c2..ecbd0e9244c 100644
--- a/src/server/shared/Database/Implementation/WorldDatabase.cpp
+++ b/src/server/shared/Database/Implementation/WorldDatabase.cpp
@@ -25,7 +25,7 @@ void WorldDatabaseConnection::DoPrepareStatements()
     PrepareStatement(WORLD_SEL_QUEST_POOLS, "SELECT entry, pool_entry FROM pool_quest", CONNECTION_SYNCH);
     PrepareStatement(WORLD_DEL_CRELINKED_RESPAWN, "DELETE FROM linked_respawn WHERE guid = ?", CONNECTION_ASYNC);
     PrepareStatement(WORLD_REP_CREATURE_LINKED_RESPAWN, "REPLACE INTO linked_respawn (guid, linkedGuid) VALUES (?, ?)", CONNECTION_ASYNC);
-    PrepareStatement(WORLD_SEL_CREATURE_TEXT, "SELECT entry, groupid, id, text, type, language, probability, emote, duration, sound, BroadcastTextID FROM creature_text", CONNECTION_SYNCH);
+    PrepareStatement(WORLD_SEL_CREATURE_TEXT, "SELECT entry, groupid, id, text, type, language, probability, emote, duration, sound, BroadcastTextId, TextRange FROM creature_text", CONNECTION_SYNCH);
     PrepareStatement(WORLD_SEL_SMART_SCRIPTS, "SELECT entryorguid, source_type, id, link, event_type, event_phase_mask, event_chance, event_flags, event_param1, event_param2, event_param3, event_param4, action_type, action_param1, action_param2, action_param3, action_param4, action_param5, action_param6, target_type, target_param1, target_param2, target_param3, target_x, target_y, target_z, target_o FROM smart_scripts ORDER BY entryorguid, source_type, id, link", CONNECTION_SYNCH);
     PrepareStatement(WORLD_SEL_SMARTAI_WP, "SELECT entry, pointid, position_x, position_y, position_z FROM waypoints ORDER BY entry, pointid", CONNECTION_SYNCH);
     PrepareStatement(WORLD_DEL_GAMEOBJECT, "DELETE FROM gameobject WHERE guid = ?", CONNECTION_ASYNC);
diff --git a/src/server/shared/Database/MySQLConnection.cpp b/src/server/shared/Database/MySQLConnection.cpp
index abdf2a2cc3c..24290009625 100644
--- a/src/server/shared/Database/MySQLConnection.cpp
+++ b/src/server/shared/Database/MySQLConnection.cpp
@@ -57,8 +57,7 @@ m_connectionFlags(CONNECTION_ASYNC)
 
 MySQLConnection::~MySQLConnection()
 {
-    if (m_worker)
-        delete m_worker;
+    delete m_worker;
 
     for (size_t i = 0; i < m_stmts.size(); ++i)
         delete m_stmts[i];
diff --git a/src/server/shared/Debugging/WheatyExceptionReport.cpp b/src/server/shared/Debugging/WheatyExceptionReport.cpp
index 2eb456ddd02..e9f4f9ca9ac 100644
--- a/src/server/shared/Debugging/WheatyExceptionReport.cpp
+++ b/src/server/shared/Debugging/WheatyExceptionReport.cpp
@@ -1043,7 +1043,7 @@ bool logChildren)
                     offset, bHandled, Name, "", false, false);
 
                 // Set Value back to an empty string since the Array object itself has no value, only its elements have
-                symbolDetails.top().Value = "";
+                symbolDetails.top().Value.clear();
 
                 DWORD elementsCount;
                 if (SymGetTypeInfo(m_hProcess, modBase, dwTypeIndex, TI_GET_COUNT, &elementsCount))
diff --git a/src/server/shared/Define.h b/src/server/shared/Define.h
index d1501b0c149..5d5da7e600e 100644
--- a/src/server/shared/Define.h
+++ b/src/server/shared/Define.h
@@ -88,6 +88,8 @@
 #define SI64FMTD "%" PRId64
 #define SI64LIT(N) INT64_C(N)
 
+#define SZFMTD "%" PRIuPTR
+
 typedef int64_t int64;
 typedef int32_t int32;
 typedef int16_t int16;
diff --git a/src/server/shared/Networking/Socket.h b/src/server/shared/Networking/Socket.h
index dfff60a380b..d3e29ceaaea 100644
--- a/src/server/shared/Networking/Socket.h
+++ b/src/server/shared/Networking/Socket.h
@@ -34,6 +34,7 @@
 using boost::asio::ip::tcp;
 
 #define READ_BLOCK_SIZE 4096
+#define TC_SOCKET_USE_IOCP BOOST_ASIO_HAS_IOCP
 
 template<class T>
 class Socket : public std::enable_shared_from_this<T>
@@ -58,11 +59,15 @@ public:
         if (!IsOpen())
             return false;
 
-#ifndef BOOST_ASIO_HAS_IOCP
+#ifndef TC_SOCKET_USE_IOCP
+        std::unique_lock<std::mutex> guard(_writeLock, std::try_to_lock);
+        if (!guard)
+            return true;
+
         if (_isWritingAsync || (!_writeBuffer.GetActiveSize() && _writeQueue.empty()))
             return true;
 
-        for (; WriteHandler(boost::system::error_code(), 0);)
+        for (; WriteHandler(guard);)
             ;
 #endif
 
@@ -113,7 +118,7 @@ public:
     {
         _writeQueue.push(std::move(buffer));
 
-#ifdef BOOST_ASIO_HAS_IOCP
+#ifdef TC_SOCKET_USE_IOCP
         AsyncProcessQueue(guard);
 #else
         (void)guard;
@@ -145,24 +150,25 @@ protected:
     bool AsyncProcessQueue(std::unique_lock<std::mutex>&)
     {
         if (_isWritingAsync)
-            return true;
+            return false;
 
         _isWritingAsync = true;
 
-#ifdef BOOST_ASIO_HAS_IOCP
+#ifdef TC_SOCKET_USE_IOCP
         MessageBuffer& buffer = _writeQueue.front();
         _socket.async_write_some(boost::asio::buffer(buffer.GetReadPointer(), buffer.GetActiveSize()), std::bind(&Socket<T>::WriteHandler,
             this->shared_from_this(), std::placeholders::_1, std::placeholders::_2));
 #else
-        _socket.async_write_some(boost::asio::null_buffers(), std::bind(&Socket<T>::WriteHandler, this->shared_from_this(), std::placeholders::_1, std::placeholders::_2));
+        _socket.async_write_some(boost::asio::null_buffers(), std::bind(&Socket<T>::WriteHandlerWrapper,
+            this->shared_from_this(), std::placeholders::_1, std::placeholders::_2));
 #endif
 
-        return true;
+        return false;
     }
 
     std::mutex _writeLock;
     std::queue<MessageBuffer> _writeQueue;
-#ifndef BOOST_ASIO_HAS_IOCP
+#ifndef TC_SOCKET_USE_IOCP
     MessageBuffer _writeBuffer;
 #endif
 
@@ -179,7 +185,7 @@ private:
         ReadHandler();
     }
 
-#ifdef BOOST_ASIO_HAS_IOCP
+#ifdef TC_SOCKET_USE_IOCP
 
     void WriteHandler(boost::system::error_code error, std::size_t transferedBytes)
     {
@@ -203,12 +209,15 @@ private:
 
 #else
 
-    bool WriteHandler(boost::system::error_code /*error*/, std::size_t /*transferedBytes*/)
+    void WriteHandlerWrapper(boost::system::error_code /*error*/, std::size_t /*transferedBytes*/)
     {
-        std::unique_lock<std::mutex> guard(_writeLock, std::try_to_lock);
-        if (!guard)
-            return false;
+        std::unique_lock<std::mutex> guard(_writeLock);
+        _isWritingAsync = false;
+        WriteHandler(guard);
+    }
 
+    bool WriteHandler(std::unique_lock<std::mutex>& guard)
+    {
         if (!IsOpen())
             return false;
 
@@ -229,7 +238,7 @@ private:
         }
         else if (bytesWritten == 0)
             return false;
-        else if (bytesWritten < bytesToSend) //now n > 0
+        else if (bytesWritten < bytesToSend)
         {
             _writeBuffer.ReadCompleted(bytesWritten);
             _writeBuffer.Normalize();
@@ -245,10 +254,7 @@ private:
     bool HandleQueue(std::unique_lock<std::mutex>& guard)
     {
         if (_writeQueue.empty())
-        {
-            _isWritingAsync = false;
             return false;
-        }
 
         MessageBuffer& queuedMessage = _writeQueue.front();
 
@@ -277,13 +283,7 @@ private:
         }
 
         _writeQueue.pop();
-        if (_writeQueue.empty())
-        {
-            _isWritingAsync = false;
-            return false;
-        }
-
-        return true;
+        return !_writeQueue.empty();
     }
 
 #endif
diff --git a/src/server/shared/Packets/ByteBuffer.h b/src/server/shared/Packets/ByteBuffer.h
index f90f4814f2a..f7d27697f24 100644
--- a/src/server/shared/Packets/ByteBuffer.h
+++ b/src/server/shared/Packets/ByteBuffer.h
@@ -32,6 +32,7 @@
 #include <cstring>
 #include <time.h>
 #include <cmath>
+#include <type_traits>
 #include <boost/asio/buffer.hpp>
 
 class MessageBuffer;
@@ -116,6 +117,7 @@ class ByteBuffer
 
         template <typename T> void append(T value)
         {
+            static_assert(std::is_fundamental<T>::value, "append(compound)");
             FlushBits();
             EndianConvert(value);
             append((uint8 *)&value, sizeof(value));
@@ -190,6 +192,7 @@ class ByteBuffer
 
         template <typename T> void put(size_t pos, T value)
         {
+            static_assert(std::is_fundamental<T>::value, "append(compound)");
             EndianConvert(value);
             put(pos, (uint8 *)&value, sizeof(value));
         }
diff --git a/src/server/shared/Threading/ProcessPriority.h b/src/server/shared/Threading/ProcessPriority.h
index 23238c94ace..6446820e32d 100644
--- a/src/server/shared/Threading/ProcessPriority.h
+++ b/src/server/shared/Threading/ProcessPriority.h
@@ -26,7 +26,7 @@
 #define PROCESS_HIGH_PRIORITY -15 // [-20, 19], default is 0
 #endif
 
-void SetProcessPriority(const std::string logChannel)
+void SetProcessPriority(const std::string& logChannel)
 {
 // Suppresses Mac OS X Warning since logChannel isn't used.
 #if PLATFORM_APPLE
diff --git a/src/server/shared/Utilities/ServiceWin32.cpp b/src/server/shared/Utilities/ServiceWin32.cpp
index ecf403423f7..6e5309d70d7 100644
--- a/src/server/shared/Utilities/ServiceWin32.cpp
+++ b/src/server/shared/Utilities/ServiceWin32.cpp
@@ -204,7 +204,8 @@ void WINAPI ServiceMain(DWORD argc, char *argv[])
 
         GetModuleFileName(0, path, sizeof(path)/sizeof(path[0]));
 
-        for (i = 0; i < std::strlen(path); i++)
+        size_t pathLen = std::strlen(path);
+        for (i = 0; i < pathLen; i++)
         {
             if (path[i] == '\\') last_slash = i;
         }
diff --git a/src/server/shared/Utilities/Util.cpp b/src/server/shared/Utilities/Util.cpp
index 0bdc1fb714c..c4049ae6315 100644
--- a/src/server/shared/Utilities/Util.cpp
+++ b/src/server/shared/Utilities/Util.cpp
@@ -294,7 +294,7 @@ size_t utf8length(std::string& utf8str)
     }
     catch(std::exception)
     {
-        utf8str = "";
+        utf8str.clear();
         return 0;
     }
 }
@@ -316,7 +316,7 @@ void utf8truncate(std::string& utf8str, size_t len)
     }
     catch(std::exception)
     {
-        utf8str = "";
+        utf8str.clear();
     }
 }
 
@@ -360,7 +360,7 @@ bool Utf8toWStr(const std::string& utf8str, std::wstring& wstr)
     }
     catch(std::exception)
     {
-        wstr = L"";
+        wstr.clear();
         return false;
     }
 
@@ -383,14 +383,14 @@ bool WStrToUtf8(wchar_t* wstr, size_t size, std::string& utf8str)
     }
     catch(std::exception)
     {
-        utf8str = "";
+        utf8str.clear();
         return false;
     }
 
     return true;
 }
 
-bool WStrToUtf8(std::wstring wstr, std::string& utf8str)
+bool WStrToUtf8(std::wstring const& wstr, std::string& utf8str)
 {
     try
     {
@@ -406,7 +406,7 @@ bool WStrToUtf8(std::wstring wstr, std::string& utf8str)
     }
     catch(std::exception)
     {
-        utf8str = "";
+        utf8str.clear();
         return false;
     }
 
@@ -415,7 +415,7 @@ bool WStrToUtf8(std::wstring wstr, std::string& utf8str)
 
 typedef wchar_t const* const* wstrlist;
 
-std::wstring GetMainPartOfName(std::wstring wname, uint32 declension)
+std::wstring GetMainPartOfName(std::wstring const& wname, uint32 declension)
 {
     // supported only Cyrillic cases
     if (wname.size() < 1 || !isCyrillicCharacter(wname[0]) || declension > 5)
@@ -492,7 +492,7 @@ bool consoleToUtf8(const std::string& conStr, std::string& utf8str)
 #endif
 }
 
-bool Utf8FitTo(const std::string& str, std::wstring search)
+bool Utf8FitTo(const std::string& str, std::wstring const& search)
 {
     std::wstring temp;
 
diff --git a/src/server/shared/Utilities/Util.h b/src/server/shared/Utilities/Util.h
index d674acae09f..73ee37eb079 100644
--- a/src/server/shared/Utilities/Util.h
+++ b/src/server/shared/Utilities/Util.h
@@ -147,7 +147,7 @@ inline bool Utf8toWStr(const std::string& utf8str, wchar_t* wstr, size_t& wsize)
     return Utf8toWStr(utf8str.c_str(), utf8str.size(), wstr, wsize);
 }
 
-bool WStrToUtf8(std::wstring wstr, std::string& utf8str);
+bool WStrToUtf8(std::wstring const& wstr, std::string& utf8str);
 // size==real string size
 bool WStrToUtf8(wchar_t* wstr, size_t size, std::string& utf8str);
 
@@ -331,11 +331,11 @@ inline void wstrToLower(std::wstring& str)
     std::transform( str.begin(), str.end(), str.begin(), wcharToLower );
 }
 
-std::wstring GetMainPartOfName(std::wstring wname, uint32 declension);
+std::wstring GetMainPartOfName(std::wstring const& wname, uint32 declension);
 
 bool utf8ToConsole(const std::string& utf8str, std::string& conStr);
 bool consoleToUtf8(const std::string& conStr, std::string& utf8str);
-bool Utf8FitTo(const std::string& str, std::wstring search);
+bool Utf8FitTo(const std::string& str, std::wstring const& search);
 void utf8printf(FILE* out, const char *str, ...);
 void vutf8printf(FILE* out, const char *str, va_list* ap);
 bool Utf8ToUpperOnlyLatin(std::string& utf8String);
@@ -878,7 +878,6 @@ class EventMap
         */
         EventStore _eventMap;
 
-
         /**
         * @name _lastEvent
         * @brief Stores information on the most recently executed event
diff --git a/src/server/worldserver/Main.cpp b/src/server/worldserver/Main.cpp
index 191e44b3e93..07101e61eb6 100644
--- a/src/server/worldserver/Main.cpp
+++ b/src/server/worldserver/Main.cpp
@@ -268,8 +268,7 @@ extern int main(int argc, char** argv)
         delete soapThread;
     }
 
-    if (raAcceptor != nullptr)
-        delete raAcceptor;
+    delete raAcceptor;
 
     ///- Clean database before leaving
     ClearOnlineAccounts();
diff --git a/src/server/worldserver/RemoteAccess/RASession.cpp b/src/server/worldserver/RemoteAccess/RASession.cpp
index 18217d4e882..c2b89cc0076 100644
--- a/src/server/worldserver/RemoteAccess/RASession.cpp
+++ b/src/server/worldserver/RemoteAccess/RASession.cpp
@@ -190,9 +190,7 @@ bool RASession::ProcessCommand(std::string& command)
     }
 
     // Obtain a new promise per command
-    if (_commandExecuting != nullptr)
-        delete _commandExecuting;
-
+    delete _commandExecuting;
     _commandExecuting = new std::promise<void>();
 
     CliCommandHolder* cmd = new CliCommandHolder(this, command.c_str(), &RASession::CommandPrint, &RASession::CommandFinished);