diff --git a/regamedll/dlls/maprules.cpp b/regamedll/dlls/maprules.cpp
index a2e2911c..5fe4fe8d 100644
--- a/regamedll/dlls/maprules.cpp
+++ b/regamedll/dlls/maprules.cpp
@@ -446,60 +446,6 @@ void CGamePlayerZone::Use(CBaseEntity *pActivator, CBaseEntity *pCaller, USE_TYP
 	{
 		FireTargets(STRING(m_iszOutCount), pActivator, this, USE_SET, playersOutCount);
 	}
-
-/*
-	int playersInCount = 0;
-	int playersOutCount = 0;
-
-	if (!CanFireForActivator(pActivator))
-		return;
-
-	for (int i = 1; i <= gpGlobals->maxClients; i++)
-	{
-		CBaseEntity *pPlayer = UTIL_PlayerByIndex(i);
-
-		if (!pPlayer)
-			continue;
-
-		TraceResult trace;
-		int hullNumber;
-
-		hullNumber = human_hull;
-		if (pPlayer->pev->flags & FL_DUCKING)
-		{
-			hullNumber = head_hull;
-		}
-
-		UTIL_TraceModel(pPlayer->pev->origin, pPlayer->pev->origin, hullNumber, edict(), &trace);
-
-		if (trace.fStartSolid)
-		{
-			playersInCount++;
-			if (!FStringNull(m_iszInTarget))
-			{
-				FireTargets(STRING(m_iszInTarget), pPlayer, pActivator, useType, value);
-			}
-		}
-		else
-		{
-			playersOutCount++;
-			if (!FStringNull(m_iszOutTarget))
-			{
-				FireTargets(STRING(m_iszOutTarget), pPlayer, pActivator, useType, value);
-			}
-		}
-	}
-
-	if (!FStringNull(m_iszInCount))
-	{
-		FireTargets(STRING(m_iszInCount), pActivator, this, USE_SET, playersInCount);
-	}
-
-	if (!FStringNull(m_iszOutCount))
-	{
-		FireTargets(STRING(m_iszOutCount), pActivator, this, USE_SET, playersOutCount);
-	}
-*/
 }
 
 LINK_ENTITY_TO_CLASS(game_player_hurt, CGamePlayerHurt, CCSGamePlayerHurt)
diff --git a/regamedll/dlls/triggers.cpp b/regamedll/dlls/triggers.cpp
index 1acdf868..5e618cb1 100644
--- a/regamedll/dlls/triggers.cpp
+++ b/regamedll/dlls/triggers.cpp
@@ -1246,6 +1246,14 @@ void CChangeLevel::KeyValue(KeyValueData *pkvd)
 		m_changeTargetDelay = Q_atof(pkvd->szValue);
 		pkvd->fHandled = TRUE;
 	}
+#ifdef REGAMEDLL_FIXES
+	else if (FStrEq(pkvd->szKeyName, "percent_of_players"))
+	{
+		m_flPercentOfPlayers = Q_atof(pkvd->szValue);
+		m_flPercentOfPlayers = clamp(m_flPercentOfPlayers, 0.0f, 1.0f);
+		pkvd->fHandled = TRUE;
+	}
+#endif
 	else
 	{
 		CBaseTrigger::KeyValue(pkvd);
@@ -1380,10 +1388,20 @@ void CChangeLevel::ChangeLevelNow(CBaseEntity *pActivator)
 
 void CChangeLevel::TouchChangeLevel(CBaseEntity *pOther)
 {
-	if (!FClassnameIs(pOther->pev, "player"))
-	{
+	if (!pOther->IsPlayer())
 		return;
+
+#ifdef REGAMEDLL_FIXES
+	if (m_flPercentOfPlayers > 0.0f)
+	{
+		int playersInCount = 0;
+		int playersOutCount = 0;
+		int playersCount = UTIL_CountPlayersInBrushVolume(true, this, playersInCount, playersOutCount);
+
+		if (m_flPercentOfPlayers > float(playersInCount / playersCount))
+			return;
 	}
+#endif
 
 	ChangeLevelNow(pOther);
 }
diff --git a/regamedll/dlls/triggers.h b/regamedll/dlls/triggers.h
index 4ba2ae36..f62e3b1d 100644
--- a/regamedll/dlls/triggers.h
+++ b/regamedll/dlls/triggers.h
@@ -361,6 +361,10 @@ public:
 	char m_szLandmarkName[MAX_MAPNAME_LENGHT];	// landmark on next map
 	int m_changeTarget;
 	float m_changeTargetDelay;
+
+#ifdef REGAMEDLL_FIXES
+	float m_flPercentOfPlayers;
+#endif
 };
 
 class CLadder: public CBaseTrigger
diff --git a/regamedll/dlls/util.h b/regamedll/dlls/util.h
index 43ed24a7..941a595a 100644
--- a/regamedll/dlls/util.h
+++ b/regamedll/dlls/util.h
@@ -331,7 +331,7 @@ public:
 	virtual void PlayerDetected(const bool fInVolume, CBasePlayer *pPlayer) = 0;
 };
 
-int UTIL_CountPlayersInBrushVolume(bool bOnlyAlive, CBaseEntity *pBrushEntity, int &playersInCount, int &playersOutCount, CPlayerInVolumeAdapter *pAdapter);
+int UTIL_CountPlayersInBrushVolume(bool bOnlyAlive, CBaseEntity *pBrushEntity, int &playersInCount, int &playersOutCount, CPlayerInVolumeAdapter *pAdapter = nullptr);
 
 inline float_precision UTIL_FixupAngle(float_precision v)
 {
diff --git a/regamedll/extra/Toolkit/GameDefinitionFile/regamedll-cs.fgd b/regamedll/extra/Toolkit/GameDefinitionFile/regamedll-cs.fgd
index b160bf3d..f2d787b2 100644
--- a/regamedll/extra/Toolkit/GameDefinitionFile/regamedll-cs.fgd
+++ b/regamedll/extra/Toolkit/GameDefinitionFile/regamedll-cs.fgd
@@ -2179,6 +2179,57 @@
 	target(target_destination) : "Target (when bomb blows)"
 ]
 
+@SolidClass base(Targetname) = trigger_cdaudio : "Trigger CD Audio"
+[
+	health(choices) : "Track #" : -1 =
+	[
+		-1 : "Stop"
+		1 : "Track 1"
+		2 : "Track 2"
+		3 : "Track 3"
+		4 : "Track 4"
+		5 : "Track 5"
+		6 : "Track 6"
+		7 : "Track 7"
+		8 : "Track 8"
+		9 : "Track 9"
+		10 : "Track 10"
+		11 : "Track 11"
+		12 : "Track 12"
+		13 : "Track 13"
+		14 : "Track 14"
+		15 : "Track 15"
+		16 : "Track 16"
+		17 : "Track 17"
+		18 : "Track 18"
+		19 : "Track 19"
+		20 : "Track 20"
+		21 : "Track 21"
+		22 : "Track 22"
+		23 : "Track 23"
+		24 : "Track 24"
+		25 : "Track 25"
+		26 : "Track 26"
+		27 : "Track 27"
+		28 : "Track 28"
+		29 : "Track 29"
+		30 : "Track 30"
+	]
+]
+
+@SolidClass base(Targetname) = trigger_changelevel : "Trigger Change level"
+[
+	map(string) : "New map name"
+	landmark(string) : "Landmark name"
+	changetarget(target_destination) : "Change Target"
+	changedelay(string) : "Delay before change target" : "0"
+	percent_of_players(string) : "Percentage of players needed" : 0
+	spawnflags(flags) =
+	[
+		2: "USE Only" : 0
+	]
+]
+
 @SolidClass base(Breakable, RenderFields, ZHLT, TexLightType) = func_breakable : "Breakable Object"
 [
 	spawnflags(flags) =