diff --git a/.github/nativefuncs.json b/.github/nativefuncs.json
index 0ed7d6140..1312d03c4 100644
--- a/.github/nativefuncs.json
+++ b/.github/nativefuncs.json
@@ -468,6 +468,12 @@
 			"returnTypeString": "void",
 			"argTypes": "string name, string version"
 		},
+		{
+			"name": "NSCancelModDownload",
+			"helpText": "prevents installation of the mod currently being installed",
+			"returnTypeString": "void",
+			"argTypes": ""
+		},
 		{
 			"name": "NSGetModInstallState",
 			"helpText": "get status of the mod currently being installed",
diff --git a/Northstar.Client/mod/resource/northstar_client_localisation_english.txt b/Northstar.Client/mod/resource/northstar_client_localisation_english.txt
index f7c5ee2d1..76e4fce1f 100644
--- a/Northstar.Client/mod/resource/northstar_client_localisation_english.txt
+++ b/Northstar.Client/mod/resource/northstar_client_localisation_english.txt
@@ -312,6 +312,12 @@ Press Yes if you agree to this. This choice can be changed in the mods menu at a
 		// In-game chat
 		"HUD_CHAT_WHISPER_PREFIX" "[WHISPER]"
 		"HUD_CHAT_SERVER_PREFIX" "[SERVER]"
+		
+		// Team Switching
+		"TEAMSWITCH_GAMEMODE"			"Gamemode does not allow Team Switching"
+		"TEAMSWITCH_BUFFER"				"Team Switching is on Cooldown"
+		"TEAMSWITCH_GAMEPLAY"			"Team change not allowed outside playing phase"
+		"TEAMSWITCH_DISABLED"			"Current gamemode doesn't support team change"
 
 		"NO_GAMESERVER_RESPONSE" 		"Couldn't reach game server"
 		"BAD_GAMESERVER_RESPONSE" 		"Game server gave an invalid response"
diff --git a/Northstar.Client/mod/resource/northstar_client_localisation_japanese.txt b/Northstar.Client/mod/resource/northstar_client_localisation_japanese.txt
index 798d603e0..47507c001 100644
--- a/Northstar.Client/mod/resource/northstar_client_localisation_japanese.txt
+++ b/Northstar.Client/mod/resource/northstar_client_localisation_japanese.txt
@@ -404,6 +404,7 @@
 		"PROGRESSION_ANNOUNCEMENT_BODY" 			"^CCCC0000進行システムが開放されました！^\n\nNorthstarはバニラの進行システム、つまり武器、スキン、タイタン等をレベルアップやチャレンジ達成で解除する機能をサポートしています。\n\nこの進行システムは、ロビー画面下のボタンから有効にできます。\n\nこの設定はいつでも変更可能です。"
 		"MOD_NOT_VERIFIED" 			"(Modが検証されていないため、自動ダウンロードできませんでした)"
 		"WRONG_MOD_VERSION" 			"サーバーはMod\"%s1\"v%s2 を要求していますが、あなたのModバージョンは%s3です"
+		"MODE_MENU_PVPVE" 			"PvPvE"
 
 		// Translation done by Zetryox and CYakigasi
 	}
diff --git a/Northstar.Client/mod/scripts/vscripts/ui/menu_ingame.nut b/Northstar.Client/mod/scripts/vscripts/ui/menu_ingame.nut
index 35c9e9bae..ac617a9c7 100644
--- a/Northstar.Client/mod/scripts/vscripts/ui/menu_ingame.nut
+++ b/Northstar.Client/mod/scripts/vscripts/ui/menu_ingame.nut
@@ -85,6 +85,9 @@ void function InitInGameMPMenu()
 	var gameHeader = AddComboButtonHeader( comboStruct, headerIndex, "#MENU_HEADER_GAME" )
 	var leaveButton = AddComboButton( comboStruct, headerIndex, buttonIndex++, "#LEAVE_MATCH" )
 	Hud_AddEventHandler( leaveButton, UIE_CLICK, OnLeaveButton_Activate )
+	var teamChangeButton = AddComboButton( comboStruct, headerIndex, buttonIndex++, "#SWITCH_TEAMS" )
+	Hud_AddEventHandler( teamChangeButton, UIE_CLICK, OnRequestTeamSwitch )
+	thread UpdateTeamSwitchButton_Threaded( teamChangeButton )
 	#if DEV
 		var devButton = AddComboButton( comboStruct, headerIndex, buttonIndex++, "Dev" )
 		Hud_AddEventHandler( devButton, UIE_CLICK, AdvanceMenuEventHandler( GetMenu( "DevMenu" ) ) )
@@ -700,3 +703,21 @@ void function SetTitanSelectButtonVisibleState( bool state )
 		Hud_Hide( file.titanSelectButton )
 	}
 }
+
+void function UpdateTeamSwitchButton_Threaded( var button )
+{
+	while ( true )
+	{
+		Hud_SetLocked( button, !GetConVarBool( "ns_allow_team_change" ) )
+		wait 0.5
+	}
+}
+
+void function OnRequestTeamSwitch( var button )
+{
+	if ( !Hud_IsLocked( button ) )
+	{
+		ClientCommand( "changeteam" )
+		CloseAllMenus()
+	}
+}
diff --git a/Northstar.Client/mod/scripts/vscripts/ui/menu_ns_moddownload.nut b/Northstar.Client/mod/scripts/vscripts/ui/menu_ns_moddownload.nut
index 4968714c7..09001f57b 100644
--- a/Northstar.Client/mod/scripts/vscripts/ui/menu_ns_moddownload.nut
+++ b/Northstar.Client/mod/scripts/vscripts/ui/menu_ns_moddownload.nut
@@ -9,6 +9,7 @@ global enum eModInstallStatus
     CHECKSUMING,
     EXTRACTING,
     DONE,
+    ABORTED,
     FAILED,
     FAILED_READING_ARCHIVE,
     FAILED_WRITING_TO_DISK,
@@ -57,6 +58,11 @@ bool function DownloadMod( RequiredModInfo mod )
 	dialogData.message = Localize( "#DOWNLOADING_MOD_TEXT", mod.name, mod.version )
 	dialogData.showSpinner = true;
 
+	// Prevent download button
+	AddDialogButton( dialogData, "#CANCEL", void function() {
+		NSCancelModDownload()
+	})
+
 	// Prevent user from closing dialog
 	dialogData.forceChoice = true;
 	OpenDialog( dialogData )
@@ -77,6 +83,13 @@ bool function DownloadMod( RequiredModInfo mod )
 		WaitFrame()
 	}
 
+	// If download was aborted, don't close UI since it was closed by clicking cancel button
+	if ( state.status == eModInstallStatus.ABORTED )
+	{
+		print("Mod download was cancelled by the user.")
+		return false;
+	}
+
 	printt( "Mod status:", state.status )
 
 	// Close loading dialog
@@ -114,6 +127,12 @@ void function DisplayModDownloadErrorDialog( string modName )
 {
 	ModInstallState state = NSGetModInstallState()
 
+	// If user cancelled download, no need to display an error message
+	if ( state.status == eModInstallStatus.ABORTED )
+	{
+		return
+	}
+
 	DialogData dialogData
 	dialogData.header = Localize( "#FAILED_DOWNLOADING", modName )
 	dialogData.image = $"ui/menu/common/dialog_error"
diff --git a/Northstar.Custom/mod/scripts/vscripts/gamemodes/_gamemode_hidden.nut b/Northstar.Custom/mod/scripts/vscripts/gamemodes/_gamemode_hidden.nut
index 6729ff975..c3bdd4849 100644
--- a/Northstar.Custom/mod/scripts/vscripts/gamemodes/_gamemode_hidden.nut
+++ b/Northstar.Custom/mod/scripts/vscripts/gamemodes/_gamemode_hidden.nut
@@ -11,6 +11,7 @@ void function GamemodeHidden_Init()
 	SetLoadoutGracePeriodEnabled( false ) // prevent modifying loadouts with grace period
 	SetWeaponDropsEnabled( false )
 	SetRespawnsEnabled( false )
+	SetGamemodeAllowsTeamSwitch( false )
 	Riff_ForceTitanAvailability( eTitanAvailability.Never )
 	Riff_ForceBoostAvailability( eBoostAvailability.Disabled )
 	Riff_ForceSetEliminationMode( eEliminationMode.Pilots )
diff --git a/Northstar.Custom/mod/scripts/vscripts/gamemodes/_gamemode_inf.gnut b/Northstar.Custom/mod/scripts/vscripts/gamemodes/_gamemode_inf.gnut
index 02f0799a1..e03f01adf 100644
--- a/Northstar.Custom/mod/scripts/vscripts/gamemodes/_gamemode_inf.gnut
+++ b/Northstar.Custom/mod/scripts/vscripts/gamemodes/_gamemode_inf.gnut
@@ -11,6 +11,7 @@ void function GamemodeInfection_Init()
 	SetSpawnpointGamemodeOverride( FFA )
 	SetLoadoutGracePeriodEnabled( false ) // prevent modifying loadouts with grace period
 	SetWeaponDropsEnabled( false )
+	SetGamemodeAllowsTeamSwitch( false )
 	SetShouldUseRoundWinningKillReplay( true )
 	Riff_ForceTitanAvailability( eTitanAvailability.Never )
 	Riff_ForceBoostAvailability( eBoostAvailability.Disabled )
diff --git a/Northstar.Custom/mod/scripts/vscripts/sh_message_utils.gnut b/Northstar.Custom/mod/scripts/vscripts/sh_message_utils.gnut
index 4cfdc6fba..6bc1718a9 100644
--- a/Northstar.Custom/mod/scripts/vscripts/sh_message_utils.gnut
+++ b/Northstar.Custom/mod/scripts/vscripts/sh_message_utils.gnut
@@ -185,13 +185,14 @@ void function NSSendPopUpMessageToPlayer( entity player, string text )
 	ServerToClientStringCommand( player, "ServerHUDMessageShow " + eMessageType.POPUP )
 }
 
-void function NSSendAnnouncementMessageToPlayer( entity player, string title, string description, vector color, int priority, int style )
+void function NSSendAnnouncementMessageToPlayer( entity player, string title, string description, vector color, int priority, int style, string image = "" )
 {
 	ServerToClientStringCommand( player, "ServerHUDMessagePut " + eDataType.TITLE + " " + title )
 	ServerToClientStringCommand( player, "ServerHUDMessagePut " + eDataType.DESC + " " + description )
 	ServerToClientStringCommand( player, "ServerHUDMessagePut " + eDataType.COLOR + " " + color.x + " " + color.y + " " + color.z )
 	ServerToClientStringCommand( player, "ServerHUDMessagePut " + eDataType.PRIORITY + " " + priority )
 	ServerToClientStringCommand( player, "ServerHUDMessagePut " + eDataType.STYLE + " " + style )
+	ServerToClientStringCommand( player, "ServerHUDMessagePut " + eDataType.ASSET + " " + image )
 	
 	ServerToClientStringCommand( player, "ServerHUDMessageShow " + eMessageType.ANNOUNCEMENT )
 }
@@ -453,6 +454,7 @@ void function AnnouncementMessageHandler_Threaded()
 		Announcement_SetPriority( announcement, client.announcementQueue[0].priority )
 		Announcement_SetSoundAlias( announcement, SFX_HUD_ANNOUNCE_QUICK )
 		Announcement_SetStyle( announcement, client.announcementQueue[0].style )
+		Announcement_SetIcon( announcement, StringToAsset( strip( client.announcementQueue[0].image ) ) )
 		AnnouncementFromClass( GetLocalViewPlayer(), announcement )
 
 		wait 5
diff --git a/Northstar.CustomServers/mod.json b/Northstar.CustomServers/mod.json
index fa51f4d41..6735306e6 100644
--- a/Northstar.CustomServers/mod.json
+++ b/Northstar.CustomServers/mod.json
@@ -49,6 +49,11 @@
 			"Name": "ns_progression_enabled",
 			"DefaultValue": "0",
 			"Flags": "ARCHIVE_PLAYERPROFILE"
+		},
+		{
+			"Name": "ns_allow_team_change",
+			"DefaultValue": "1",
+			"Flags": "REPLICATED"
 		}
 	],
 	"Scripts": [
diff --git a/Northstar.CustomServers/mod/scripts/vscripts/mp/_base_gametype_mp.gnut b/Northstar.CustomServers/mod/scripts/vscripts/mp/_base_gametype_mp.gnut
index b77a37b2a..6b4e82d68 100644
--- a/Northstar.CustomServers/mod/scripts/vscripts/mp/_base_gametype_mp.gnut
+++ b/Northstar.CustomServers/mod/scripts/vscripts/mp/_base_gametype_mp.gnut
@@ -18,6 +18,7 @@ global function TrackTitanDamageInPlayerGameStat
 global function ShouldEntTakeDamage_SPMP
 global function GetTitanBuildTime
 global function TitanPlayerHotDropsIntoLevel
+global function SetGamemodeAllowsTeamSwitch
 
 global function SetRecalculateRespawnAsTitanStartPointCallback
 
@@ -30,10 +31,13 @@ struct {
 	array<entity> specCams 
 	
 	entity functionref( entity player, entity basePoint ) recalculateRespawnAsTitanStartPointCallback
+	table<entity, float> playerChangeTeamTimeBuffer
+	bool gamemodeTeamSwitchEnabled = true
 } file
 
 void function BaseGametype_Init_MPSP()
 {
+	AddClientCommandCallback( "changeteam", ClientCommandCallbackChangeTeam )
 	AddSpawnCallback( "info_intermission", SetIntermissionCamera )
 	
 	AddPostDamageCallback( "player", AddToTitanDamageStat )
@@ -630,6 +634,51 @@ void function SetRecalculateRespawnAsTitanStartPointCallback( entity functionref
 	file.recalculateRespawnAsTitanStartPointCallback = callbackFunc
 }
 
+void function SetGamemodeAllowsTeamSwitch( bool enabled )
+{
+	file.gamemodeTeamSwitchEnabled = enabled
+}
+
+bool function ClientCommandCallbackChangeTeam( entity player, array<string> args )
+{
+	if ( !GetConVarBool( "ns_allow_team_change" ) || IsPrivateMatchSpectator( player ) )
+		return true
+	
+	if ( !file.gamemodeTeamSwitchEnabled )
+	{
+		SendHudMessage( player, "#TEAMSWITCH_GAMEMODE", -1, 0.4, 255, 255, 255, 255, 0.15, 3.0, 0.5 )
+		return true
+	}
+	
+	if ( !( player in file.playerChangeTeamTimeBuffer ) )
+	{
+		file.playerChangeTeamTimeBuffer[ player ] <- Time() + 5.0
+	}
+	else
+	{
+		if ( file.playerChangeTeamTimeBuffer[ player ] > Time() )
+		{
+			SendHudMessage( player, "#TEAMSWITCH_BUFFER", -1, 0.4, 255, 255, 255, 255, 0.15, 3.0, 0.5 )
+			return true
+		}
+	}
+	
+	if ( player in file.playerChangeTeamTimeBuffer && file.playerChangeTeamTimeBuffer[ player ] < Time() )
+		file.playerChangeTeamTimeBuffer[ player ] = Time() + 5.0
+	
+	if ( !GamePlaying() )
+	{
+		SendHudMessage( player, "#TEAMSWITCH_GAMEPLAY", -1, 0.4, 255, 255, 255, 255, 0.15, 3.0, 0.5 )
+		return true
+	}
+	if ( GetCurrentPlaylistVarInt( "max_teams", 0 ) > 1 && !IsFFAGame() )
+		SetTeam( player, GetOtherTeam( player.GetTeam() ) )
+	else
+		SendHudMessage( player, "#TEAMSWITCH_DISABLED", -1, 0.4, 255, 255, 255, 255, 0.15, 3.0, 0.5 )
+	
+	return true
+}
+
 // stuff to change later
 
 bool function ShouldEntTakeDamage_SPMP( entity ent, var damageInfo )