diff --git a/sql/updates/world/4.3.4/2022_12_29_02_world.sql b/sql/updates/world/4.3.4/2022_12_29_02_world.sql
new file mode 100644
index 0000000000..b5c733b17c
--- /dev/null
+++ b/sql/updates/world/4.3.4/2022_12_29_02_world.sql
@@ -0,0 +1,4 @@
+DELETE FROM `world_state` WHERE `ID` IN (4485,4486);
+INSERT INTO `world_state` (`ID`, `DefaultValue`, `MapIDs`, `ScriptName`, `Comment`) VALUES
+(4485, 0, '-1', '', 'Instances - Generic - Team In Instance - Alliance'),
+(4486, 0, '-1', '', 'Instances - Generic - Team In Instance - Horde');
diff --git a/src/server/game/Maps/Map.cpp b/src/server/game/Maps/Map.cpp
index b7dfa9d9c9..ebe68d0348 100644
--- a/src/server/game/Maps/Map.cpp
+++ b/src/server/game/Maps/Map.cpp
@@ -2585,7 +2585,7 @@ template TC_GAME_API void Map::RemoveFromMap(AreaTrigger*, bool);
 InstanceMap::InstanceMap(uint32 id, time_t expiry, uint32 InstanceId, uint8 SpawnMode, TeamId InstanceTeam)
   : Map(id, expiry, InstanceId, SpawnMode),
     m_resetAfterUnload(false), m_unloadWhenEmpty(false),
-    i_data(nullptr), i_script_id(0), i_script_team(InstanceTeam)
+    i_data(nullptr), i_script_id(0)
 {
     //lets initialize visibility distance for dungeons
     InstanceMap::InitVisibilityDistance();
@@ -2593,6 +2593,9 @@ InstanceMap::InstanceMap(uint32 id, time_t expiry, uint32 InstanceId, uint8 Spaw
     // the timer is started by default, and stopped when the first player joins
     // this make sure it gets unloaded if for some reason no player joins
     m_unloadTimer = std::max(sWorld->getIntConfig(CONFIG_INSTANCE_UNLOAD_DELAY), (uint32)MIN_UNLOAD_DELAY);
+
+    sWorldStateMgr->SetValue(WS_TEAM_IN_INSTANCE_ALLIANCE, InstanceTeam == TEAM_ALLIANCE, false, this);
+    sWorldStateMgr->SetValue(WS_TEAM_IN_INSTANCE_HORDE, InstanceTeam == TEAM_HORDE, false, this);
 }
 
 InstanceMap::~InstanceMap()
@@ -3048,6 +3051,15 @@ uint32 InstanceMap::GetMaxResetDelay() const
     return mapDiff ? mapDiff->resetTime : 0;
 }
 
+TeamId InstanceMap::GetTeamIdInInstance() const
+{
+    if (sWorldStateMgr->GetValue(WS_TEAM_IN_INSTANCE_ALLIANCE, this))
+        return TEAM_ALLIANCE;
+    if (sWorldStateMgr->GetValue(WS_TEAM_IN_INSTANCE_HORDE, this))
+        return TEAM_HORDE;
+    return TEAM_NEUTRAL;
+}
+
 /* ******* Battleground Instance Maps ******* */
 
 BattlegroundMap::BattlegroundMap(uint32 id, time_t expiry, uint32 InstanceId, uint8 spawnMode)
diff --git a/src/server/game/Maps/Map.h b/src/server/game/Maps/Map.h
index 382ab5fc29..f39652b422 100644
--- a/src/server/game/Maps/Map.h
+++ b/src/server/game/Maps/Map.h
@@ -785,8 +785,8 @@ class TC_GAME_API InstanceMap : public Map
         bool HasPermBoundPlayers() const;
         uint32 GetMaxPlayers() const;
         uint32 GetMaxResetDelay() const;
-        TeamId GetTeamIdInInstance() const { return i_script_team; }
-        Team GetTeamInInstance() const { return i_script_team == TEAM_ALLIANCE ? ALLIANCE : HORDE; }
+        TeamId GetTeamIdInInstance() const;
+        Team GetTeamInInstance() const { return GetTeamIdInInstance() == TEAM_ALLIANCE ? ALLIANCE : HORDE; }
 
         virtual void InitVisibilityDistance() override;
     private:
@@ -794,7 +794,6 @@ class TC_GAME_API InstanceMap : public Map
         bool m_unloadWhenEmpty;
         InstanceScript* i_data;
         uint32 i_script_id;
-        TeamId i_script_team;
 };
 
 class TC_GAME_API BattlegroundMap : public Map
diff --git a/src/server/game/Miscellaneous/SharedDefines.h b/src/server/game/Miscellaneous/SharedDefines.h
index 174206c1c2..098d8d1be4 100644
--- a/src/server/game/Miscellaneous/SharedDefines.h
+++ b/src/server/game/Miscellaneous/SharedDefines.h
@@ -4362,6 +4362,9 @@ enum WorldState : uint32
     WS_CURRENT_PVP_SEASON_ID                = 3191,
     WS_PREVIOUS_PVP_SEASON_ID               = 3901,
 
+    WS_TEAM_IN_INSTANCE_ALLIANCE            = 4485,
+    WS_TEAM_IN_INSTANCE_HORDE               = 4486,
+
     WS_BATTLEFIELD_WG_VEHICLE_H             = 3490,
     WS_BATTLEFIELD_WG_MAX_VEHICLE_H         = 3491,
     WS_BATTLEFIELD_WG_VEHICLE_A             = 3680,