diff --git a/src/server/game/Scripting/ScriptMgr.cpp b/src/server/game/Scripting/ScriptMgr.cpp
index 6fce9454a66..6a57513ff52 100644
--- a/src/server/game/Scripting/ScriptMgr.cpp
+++ b/src/server/game/Scripting/ScriptMgr.cpp
@@ -1254,17 +1254,6 @@ void ScriptMgr::OnPacketSend(WorldSession* session, WorldPacket const& packet)
     FOREACH_SCRIPT(ServerScript)->OnPacketSend(session, copy);
 }
 
-void ScriptMgr::OnUnknownPacketReceive(WorldSession* session, WorldPacket const& packet)
-{
-    ASSERT(session);
-
-    if (SCR_REG_LST(ServerScript).empty())
-        return;
-
-    WorldPacket copy(packet);
-    FOREACH_SCRIPT(ServerScript)->OnUnknownPacketReceive(session, copy);
-}
-
 void ScriptMgr::OnOpenStateChange(bool open)
 {
     FOREACH_SCRIPT(WorldScript)->OnOpenStateChange(open);
diff --git a/src/server/game/Scripting/ScriptMgr.h b/src/server/game/Scripting/ScriptMgr.h
index db587527520..f155e0eca93 100644
--- a/src/server/game/Scripting/ScriptMgr.h
+++ b/src/server/game/Scripting/ScriptMgr.h
@@ -223,10 +223,6 @@ class TC_GAME_API ServerScript : public ScriptObject
         // Called when a (valid) packet is received by a client. The packet object is a copy of the original packet, so
         // reading and modifying it is safe. Make sure to check WorldSession pointer before usage, it might be null in case of auth packets
         virtual void OnPacketReceive(WorldSession* /*session*/, WorldPacket& /*packet*/) { }
-
-        // Called when an invalid (unknown opcode) packet is received by a client. The packet is a reference to the orignal
-        // packet; not a copy. This allows you to actually handle unknown packets (for whatever purpose).
-        virtual void OnUnknownPacketReceive(WorldSession* /*session*/, WorldPacket& /*packet*/) { }
 };
 
 class TC_GAME_API WorldScript : public ScriptObject
@@ -906,7 +902,6 @@ class TC_GAME_API ScriptMgr
         void OnSocketClose(std::shared_ptr<WorldSocket> socket);
         void OnPacketReceive(WorldSession* session, WorldPacket const& packet);
         void OnPacketSend(WorldSession* session, WorldPacket const& packet);
-        void OnUnknownPacketReceive(WorldSession* session, WorldPacket const& packet);
 
     public: /* WorldScript */
 
diff --git a/src/server/game/Server/WorldSession.cpp b/src/server/game/Server/WorldSession.cpp
index 281a3c40105..c86ce490d21 100644
--- a/src/server/game/Server/WorldSession.cpp
+++ b/src/server/game/Server/WorldSession.cpp
@@ -321,48 +321,38 @@ bool WorldSession::Update(uint32 diff, PacketFilter& updater)
 
     while (m_Socket && _recvQueue.next(packet, updater))
     {
-        if (packet->GetOpcode() >= NUM_OPCODE_HANDLERS)
+        OpcodeHandler const* opHandle = opcodeTable[packet->GetOpcode()];
+        try
         {
-            TC_LOG_ERROR("network.opcode", "Received non-existed opcode %s from %s", GetOpcodeNameForLogging(packet->GetOpcode()).c_str()
-                            , GetPlayerInfo().c_str());
-            sScriptMgr->OnUnknownPacketReceive(this, *packet);
-        }
-        else
-        {
-            OpcodeHandler const* opHandle = opcodeTable[packet->GetOpcode()];
-            try
-            {
             switch (opHandle->Status)
-                {
-                    case STATUS_LOGGEDIN:
-                        if (!_player)
+            {
+                case STATUS_LOGGEDIN:
+                    if (!_player)
+                    {
+                        // skip STATUS_LOGGEDIN opcode unexpected errors if player logout sometime ago - this can be network lag delayed packets
+                        //! If player didn't log out a while ago, it means packets are being sent while the server does not recognize
+                        //! the client to be in world yet. We will re-add the packets to the bottom of the queue and process them later.
+                        if (!m_playerRecentlyLogout)
                         {
-                            // skip STATUS_LOGGEDIN opcode unexpected errors if player logout sometime ago - this can be network lag delayed packets
-                            //! If player didn't log out a while ago, it means packets are being sent while the server does not recognize
-                            //! the client to be in world yet. We will re-add the packets to the bottom of the queue and process them later.
-                            if (!m_playerRecentlyLogout)
-                            {
-                                requeuePackets.push_back(packet);
-                                deletePacket = false;
-                                QueuePacket(packet);
-                                //! Log
-                                TC_LOG_DEBUG("network", "Re-enqueueing packet with opcode %s with with status STATUS_LOGGEDIN. "
-                                    "Player is currently not in world yet.", GetOpcodeNameForLogging(packet->GetOpcode()).c_str());
+                            requeuePackets.push_back(packet);
+                            deletePacket = false;
+                            TC_LOG_DEBUG("network", "Re-enqueueing packet with opcode %s with with status STATUS_LOGGEDIN. "
+                                "Player is currently not in world yet.", GetOpcodeNameForLogging(packet->GetOpcode()).c_str());
                         }
                     }
-                        else if (_player->IsInWorld() && AntiDOS.EvaluateOpcode(*packet, currentTime))
-                        {
-                            sScriptMgr->OnPacketReceive(this, *packet);
-                            (this->*opHandle->Handler)(*packet);
-                            LogUnprocessedTail(packet);
-                        }
-                        // lag can cause STATUS_LOGGEDIN opcodes to arrive after the player started a transfer
-                        break;
-                    case STATUS_LOGGEDIN_OR_RECENTLY_LOGGOUT:
-                        if (!_player && !m_playerRecentlyLogout && !m_playerLogout) // There's a short delay between _player = null and m_playerRecentlyLogout = true during logout
-                            LogUnexpectedOpcode(packet, "STATUS_LOGGEDIN_OR_RECENTLY_LOGGOUT",
-                                "the player has not logged in yet and not recently logout");
-                        else if (AntiDOS.EvaluateOpcode(*packet, currentTime))
+                    else if (_player->IsInWorld() && AntiDOS.EvaluateOpcode(*packet, currentTime))
+                    {
+                        sScriptMgr->OnPacketReceive(this, *packet);
+                        (this->*opHandle->Handler)(*packet);
+                        LogUnprocessedTail(packet);
+                    }
+                    // lag can cause STATUS_LOGGEDIN opcodes to arrive after the player started a transfer
+                    break;
+                case STATUS_LOGGEDIN_OR_RECENTLY_LOGGOUT:
+                    if (!_player && !m_playerRecentlyLogout && !m_playerLogout) // There's a short delay between _player = null and m_playerRecentlyLogout = true during logout
+                        LogUnexpectedOpcode(packet, "STATUS_LOGGEDIN_OR_RECENTLY_LOGGOUT",
+                            "the player has not logged in yet and not recently logout");
+                    else if (AntiDOS.EvaluateOpcode(*packet, currentTime))
                     {
                         // not expected _player or must checked in packet hanlder
                         sScriptMgr->OnPacketReceive(this, *packet);
@@ -375,7 +365,7 @@ bool WorldSession::Update(uint32 diff, PacketFilter& updater)
                         LogUnexpectedOpcode(packet, "STATUS_TRANSFER", "the player has not logged in yet");
                     else if (_player->IsInWorld())
                         LogUnexpectedOpcode(packet, "STATUS_TRANSFER", "the player is still in world");
-                        else if (AntiDOS.EvaluateOpcode(*packet, currentTime))
+                    else if(AntiDOS.EvaluateOpcode(*packet, currentTime))
                     {
                         sScriptMgr->OnPacketReceive(this, *packet);
                         (this->*opHandle->Handler)(*packet);
@@ -395,30 +385,29 @@ bool WorldSession::Update(uint32 diff, PacketFilter& updater)
                     if (packet->GetOpcode() == CMSG_CHAR_ENUM)
                         m_playerRecentlyLogout = false;
 
-                        if (AntiDOS.EvaluateOpcode(*packet, currentTime))
-                        {
-                            sScriptMgr->OnPacketReceive(this, *packet);
-                            (this->*opHandle->Handler)(*packet);
-                            LogUnprocessedTail(packet);
-                        }
+                    if (AntiDOS.EvaluateOpcode(*packet, currentTime))
+                    {
+                        sScriptMgr->OnPacketReceive(this, *packet);
+                        (this->*opHandle->Handler)(*packet);
+                        LogUnprocessedTail(packet);
+                    }
                     break;
                 case STATUS_NEVER:
-                        TC_LOG_ERROR("network.opcode", "Received not allowed opcode %s from %s", GetOpcodeNameForLogging(packet->GetOpcode()).c_str()
-                            , GetPlayerInfo().c_str());
-                        break;
-                    case STATUS_UNHANDLED:
-                        TC_LOG_DEBUG("network.opcode", "Received not handled opcode %s from %s", GetOpcodeNameForLogging(packet->GetOpcode()).c_str()
-                            , GetPlayerInfo().c_str());
-                        break;
-                }
-            }
-            catch (ByteBufferException const&)
-            {
-                TC_LOG_ERROR("misc", "WorldSession::Update ByteBufferException occured while parsing a packet (opcode: %u) from client %s, accountid=%i. Skipped packet.",
-                        packet->GetOpcode(), GetRemoteAddress().c_str(), GetAccountId());
-                packet->hexlike();
+                    TC_LOG_ERROR("network.opcode", "Received not allowed opcode %s from %s", GetOpcodeNameForLogging(packet->GetOpcode()).c_str()
+                        , GetPlayerInfo().c_str());
+                    break;
+                case STATUS_UNHANDLED:
+                    TC_LOG_ERROR("network.opcode", "Received not handled opcode %s from %s", GetOpcodeNameForLogging(packet->GetOpcode()).c_str()
+                        , GetPlayerInfo().c_str());
+                    break;
             }
         }
+        catch (ByteBufferException const&)
+        {
+            TC_LOG_ERROR("network", "WorldSession::Update ByteBufferException occured while parsing a packet (opcode: %u) from client %s, accountid=%i. Skipped packet.",
+                    packet->GetOpcode(), GetRemoteAddress().c_str(), GetAccountId());
+            packet->hexlike();
+        }
 
         if (deletePacket)
             delete packet;