diff --git a/cvarinfo.txt b/cvarinfo.txt
index 2f13ce2..7ddad09 100644
--- a/cvarinfo.txt
+++ b/cvarinfo.txt
@@ -41,3 +41,4 @@ server bool flak_gibs = false;				// [WIP/UNSTABLE] use doom tournament gibbing
 server bool flak_doomtest = false;			// made toggleable due to loud complaints
 server bool flak_dmsshock = false;			// allow enhanced shock rifle on deathmatch (otherwise they are replaced with udamage)
 server noarchive bool flak_instagib = false;		// instagib mode (only for dm) - this cvar has to be set from the command line
+user float flak_flashstrength = 1.0;			// strength of screen flashes
diff --git a/language.txt b/language.txt
index 24eacd4..b6a0742 100644
--- a/language.txt
+++ b/language.txt
@@ -213,6 +213,7 @@ FLAK_UBLOD = "UT blood";
 FLAK_UGIB = "[WIP] UT gibbing";
 FLAK_UCORPS = "[WIP] Corpses take damage";
 FLAK_DTEST = "Edit Kinsie's test map";
+FLAK_FSTRENGTH = "Screen flash strength";
 
 [es esm esn esg esc esa esd esv eso esr ess esf esl esy esz esb ese esh esi esu]
 /* Obituaries */
@@ -413,6 +414,7 @@ FLAK_UBLOD = "Sangre de UT";
 FLAK_UGIB = "[WIP] Vísceras de UT";
 FLAK_UCORPS = "[WIP] Los cadáveres reciben daño";
 FLAK_DTEST = "Editar mapa de pruebas de Kinsie";
+FLAK_FSTRENGTH = "Intensidad de destellos en pantalla";
 
 [fr]
 
diff --git a/menudef.txt b/menudef.txt
index df0252c..071a28f 100644
--- a/menudef.txt
+++ b/menudef.txt
@@ -29,6 +29,7 @@ OptionMenu "UTOptionMenu"
 	Option "$FLAK_CSSHOCK", "flak_classicsshock", "YesNo"
 	Option "$FLAK_RECOIL", "flak_swingers", "YesNo"
 	Slider "$FLAK_RSTRENGTH", "flak_swingerstrength", 0.0, 1.0, 0.1, 1
+	Slider "$FLAK_FSTRENGTH", "flak_flashstrength", 0.0, 1.0, 0.1, 1
 	StaticText " "
 	StaticText "$FLAK_IOPTS", "Gold"
 	Option "$FLAK_RADBOOTS", "flak_radboots", "YesNo"
diff --git a/zscript/biorifle.zsc b/zscript/biorifle.zsc
index dc291d0..8882902 100644
--- a/zscript/biorifle.zsc
+++ b/zscript/biorifle.zsc
@@ -158,7 +158,7 @@ Class BioXLight : DynamicLight
 	override void Tick()
 	{
 		Super.Tick();
-		if ( globalfreeze || level.frozen ) return;
+		if ( isFrozen() ) return;
 		args[LIGHT_RED] = int(64*lifetime);
 		args[LIGHT_GREEN] = int(255*lifetime);
 		args[LIGHT_BLUE] = int(48*lifetime);
@@ -211,7 +211,7 @@ Class BioGel : Actor
 	override void Tick()
 	{
 		Super.Tick();
-		if ( globalfreeze || level.frozen ) return;
+		if ( isFrozen() ) return;
 		if ( !bNOGRAVITY )
 		{
 			roll += rollvel;
@@ -624,7 +624,7 @@ Class BioGlob : BioGel
 	override void Tick()
 	{
 		Super.Tick();
-		if ( globalfreeze || level.frozen ) return;
+		if ( isFrozen() ) return;
 		Vector3 ofs = (cos(angle)*cos(pitch),sin(angle)*cos(pitch),-sin(pitch));
 		for ( int i=0; i<2; i++ )
 		{
diff --git a/zscript/enforcer.zsc b/zscript/enforcer.zsc
index e43614e..bead7a8 100644
--- a/zscript/enforcer.zsc
+++ b/zscript/enforcer.zsc
@@ -120,7 +120,7 @@ Class UTCasing : Actor
 	override void Tick()
 	{
 		Super.Tick();
-		if ( level.frozen || globalfreeze ) return;
+		if ( isFrozen() ) return;
 		if ( InStateSequence(CurState,ResolveState("Death")) )
 		{
 			deadtimer++;
diff --git a/zscript/flakcannon.zsc b/zscript/flakcannon.zsc
index 881a12d..e93b66c 100644
--- a/zscript/flakcannon.zsc
+++ b/zscript/flakcannon.zsc
@@ -55,7 +55,7 @@ Class ChunkLight : DynamicLight
 			Destroy();
 			return;
 		}
-		if ( globalfreeze || level.frozen ) return;
+		if ( isFrozen() ) return;
 		args[LIGHT_RED] = int(255*(10-target.frame)*0.1);
 		args[LIGHT_GREEN] = int(224*(10-target.frame)*0.1);
 		args[LIGHT_BLUE] = int(128*(10-target.frame)*0.1);
@@ -84,7 +84,7 @@ Class ChunkTrail : Actor
 	override void Tick()
 	{
 		Super.Tick();
-		if ( globalfreeze || level.frozen ) return;
+		if ( isFrozen() ) return;
 		if ( InStateSequence(CurState,FindState("Death")) ) return;
 		if ( !target )
 		{
@@ -196,7 +196,7 @@ Class FlakChunk : Actor
 	{
 		oldvel = vel;
 		Super.Tick();
-		if ( globalfreeze || level.frozen ) return;
+		if ( isFrozen() ) return;
 		if ( waterlevel > 0 )
 		{
 			vel.xy *= 0.98;
@@ -396,7 +396,7 @@ Class SlugSmoke : Actor
 	override void Tick()
 	{
 		Super.Tick();
-		if ( globalfreeze || level.frozen ) return;
+		if ( isFrozen() ) return;
 		lifetime += lifespeed;
 		let s = Spawn("UTSmoke",pos);
 		s.vel = (FRandom[Flak](-0.5,0.5),FRandom[Flak](-0.5,0.5),FRandom[Flak](-0.5,0.5));
@@ -430,7 +430,7 @@ Class SlugLight : DynamicLight
 	override void Tick()
 	{
 		Super.Tick();
-		if ( globalfreeze || level.frozen ) return;
+		if ( isFrozen() ) return;
 		args[LIGHT_RED] = int(255*lifetime);
 		args[LIGHT_GREEN] = int(224*lifetime);
 		args[LIGHT_BLUE] = int(128*lifetime);
diff --git a/zscript/minigun.zsc b/zscript/minigun.zsc
index 852f2c0..0964f85 100644
--- a/zscript/minigun.zsc
+++ b/zscript/minigun.zsc
@@ -47,7 +47,7 @@ Class MinigunTracer : Actor
 	override void Tick()
 	{
 		Super.Tick();
-		if ( level.frozen || globalfreeze ) return;
+		if ( isFrozen() ) return;
 		Vector3 dir = level.Vec3Diff(pos,dest);
 		if ( dir.length() < 160 )
 		{
diff --git a/zscript/pulsegun.zsc b/zscript/pulsegun.zsc
index dfd278e..22bcb84 100644
--- a/zscript/pulsegun.zsc
+++ b/zscript/pulsegun.zsc
@@ -91,7 +91,7 @@ Class ViewPulseSpark : PulseSpark
 		Vector3 origin = x*ofs.x+y*ofs.y+z*ofs.z+(0,0,target.player.viewz);
 		SetOrigin(target.Vec2OffsetZ(origin.x,origin.y,origin.z),true);
 		bInvisible = (players[consoleplayer].camera != target);
-		if ( level.frozen || globalfreeze ) return;
+		if ( isFrozen() ) return;
 		ofs += vvel;
 		vvel *= 0.9;
 		scale *= 0.8;
@@ -149,7 +149,7 @@ Class PulseExplLight : DynamicLight
 	override void Tick()
 	{
 		Super.Tick();
-		if ( globalfreeze || level.frozen ) return;
+		if ( isFrozen() ) return;
 		args[LIGHT_RED] = int(64*lifetime);
 		args[LIGHT_GREEN] = int(255*lifetime);
 		lifetime -= 1./ReactionTime;
@@ -515,7 +515,7 @@ Class StarterBolt : PulseBolt
 	override void Tick()
 	{
 		Super.Tick();
-		if ( globalfreeze || level.frozen ) return;
+		if ( isFrozen() ) return;
 		if ( !target )
 		{
 			Destroy();
diff --git a/zscript/ripper.zsc b/zscript/ripper.zsc
index 2053d9f..1cb0560 100644
--- a/zscript/ripper.zsc
+++ b/zscript/ripper.zsc
@@ -170,7 +170,7 @@ Class Razor2AltLight : DynamicLight
 	override void Tick()
 	{
 		Super.Tick();
-		if ( globalfreeze || level.frozen ) return;
+		if ( isFrozen() ) return;
 		args[LIGHT_RED] = int(255*lifetime);
 		args[LIGHT_GREEN] = int(240*lifetime);
 		args[LIGHT_BLUE] = int(224*lifetime);
diff --git a/zscript/shockrifle.zsc b/zscript/shockrifle.zsc
index 1d24218..dd0dba0 100644
--- a/zscript/shockrifle.zsc
+++ b/zscript/shockrifle.zsc
@@ -72,7 +72,7 @@ Class ShockRifleWave : Actor
 	override void Tick()
 	{
 		Super.Tick();
-		if ( globalfreeze || level.frozen ) return;
+		if ( isFrozen() ) return;
 		alpha -= 1/50.;
 	}
 	States
@@ -99,7 +99,7 @@ Class SuperShockRifleWave : Actor
 	override void Tick()
 	{
 		Super.Tick();
-		if ( globalfreeze || level.frozen ) return;
+		if ( isFrozen() ) return;
 		alpha -= 1/50.;
 	}
 	States
@@ -127,7 +127,7 @@ Class ShockBeamRing : Actor
 	override void Tick()
 	{
 		Super.Tick();
-		if ( globalfreeze || level.frozen ) return;
+		if ( isFrozen() ) return;
 		alpha -= 1./ReactionTime;
 	}
 	States
@@ -154,7 +154,7 @@ Class SuperShockBeamRing : Actor
 	override void Tick()
 	{
 		Super.Tick();
-		if ( globalfreeze || level.frozen ) return;
+		if ( isFrozen() ) return;
 		alpha -= 1./ReactionTime;
 	}
 	States
@@ -295,7 +295,7 @@ Class ShockBeam : Actor
 	override void Tick()
 	{
 		Super.Tick();
-		if ( globalfreeze || level.frozen ) return;
+		if ( isFrozen() ) return;
 		if ( !moving ) return;
 		// step trace
 		tracedir = (cos(angle)*cos(pitch),sin(angle)*cos(pitch),-sin(pitch));
@@ -528,7 +528,7 @@ Class SuperShockBeam : Actor
 	override void Tick()
 	{
 		Super.Tick();
-		if ( globalfreeze || level.frozen ) return;
+		if ( isFrozen() ) return;
 		if ( !moving ) return;
 		// step trace
 		tracedir = (cos(angle)*cos(pitch),sin(angle)*cos(pitch),-sin(pitch));
@@ -780,7 +780,7 @@ Class ShockExplLight : DynamicLight
 	override void Tick()
 	{
 		Super.Tick();
-		if ( globalfreeze || level.frozen ) return;
+		if ( isFrozen() ) return;
 		args[LIGHT_RED] = int(160*lifetime);
 		args[LIGHT_GREEN] = int(128*lifetime);
 		args[LIGHT_BLUE] = int(255*lifetime);
@@ -806,7 +806,7 @@ Class SuperShockExplLight : DynamicLight
 	override void Tick()
 	{
 		Super.Tick();
-		if ( globalfreeze || level.frozen ) return;
+		if ( isFrozen() ) return;
 		args[LIGHT_RED] = int(255*lifetime);
 		args[LIGHT_GREEN] = int(160*lifetime);
 		args[LIGHT_BLUE] = int(128*lifetime);
@@ -997,7 +997,7 @@ Class ViewShockSpark : ShockSpark
 		Vector3 origin = x*ofs.x+y*ofs.y+z*ofs.z+(0,0,target.player.viewz);
 		SetOrigin(target.Vec2OffsetZ(origin.x,origin.y,origin.z),true);
 		bInvisible = (players[consoleplayer].camera != target);
-		if ( level.frozen || globalfreeze ) return;
+		if ( isFrozen() ) return;
 		ofs += vvel;
 		vvel *= 0.9;
 		scale *= 0.8;
diff --git a/zscript/utcommon.zsc b/zscript/utcommon.zsc
index fc6a0e3..01d31a0 100644
--- a/zscript/utcommon.zsc
+++ b/zscript/utcommon.zsc
@@ -957,7 +957,7 @@ Class UTViewSpark : UTSpark
 		Vector3 origin = x*ofs.x+y*ofs.y+z*ofs.z+(0,0,target.player.viewz);
 		SetOrigin(target.Vec2OffsetZ(origin.x,origin.y,origin.z),true);
 		bInvisible = (players[consoleplayer].camera != target);
-		if ( level.frozen || globalfreeze ) return;
+		if ( isFrozen() ) return;
 		ofs += vvel;
 		vvel.z -= 0.1;
 		scale *= 0.8;
@@ -999,7 +999,7 @@ Class UTChip : Actor
 	override void Tick()
 	{
 		Super.Tick();
-		if ( level.frozen || globalfreeze ) return;
+		if ( isFrozen() ) return;
 		if ( InStateSequence(CurState,ResolveState("Death")) )
 		{
 			deadtimer++;
@@ -1062,7 +1062,7 @@ Class UTBubble : Actor
 	override void Tick()
 	{
 		Super.Tick();
-		if ( level.frozen || globalfreeze ) return;
+		if ( isFrozen() ) return;
 		vel *= 0.96;
 		vel.z += 0.05;
 		if ( (waterlevel <= 0) || !Random[Puff](0,100) ) Destroy();
@@ -1110,7 +1110,7 @@ Class UTSmoke : Actor
 	override void Tick()
 	{
 		Super.Tick();
-		if ( level.frozen || globalfreeze ) return;
+		if ( isFrozen() ) return;
 		vel *= 0.96;
 		vel.z += 0.01;
 		A_FadeOut(1/32.);
@@ -1202,7 +1202,7 @@ Class UTViewSmoke : UTSmoke
 		Vector3 origin = x*ofs.x+y*ofs.y+z*ofs.z+(0,0,target.player.viewz);
 		SetOrigin(target.Vec2OffsetZ(origin.x,origin.y,origin.z),true);
 		bInvisible = (players[consoleplayer].camera != target);
-		if ( level.frozen || globalfreeze ) return;
+		if ( isFrozen() ) return;
 		ofs += vvel;
 		vvel *= 0.96;
 		vvel.z += 0.01;
@@ -1434,6 +1434,7 @@ Class GenericFlash : HUDMessageBase
 	int duration;
 	double alpha;
 	Actor cam;
+	transient CVar str;
 	GenericFlash Setup( Actor camera, Color c, int d )
 	{
 		alpha = 1.0;
@@ -1451,7 +1452,8 @@ Class GenericFlash : HUDMessageBase
 	{
 		if ( automapactive || (visibility != BaseStatusBar.HUDMSGLayer_UnderHUD) ) return;
 		if ( cam && (players[consoleplayer].camera != cam) ) return;
-		Screen.Dim(col,(col.a/255.)*alpha,0,0,Screen.GetWidth(),Screen.GetHeight());
+		if ( !str ) str = CVar.GetCVar('flak_flashstrength',players[consoleplayer]);
+		Screen.Dim(col,(col.a/255.)*alpha*str.GetFloat(),0,0,Screen.GetWidth(),Screen.GetHeight());
 	}
 }
 
@@ -1671,7 +1673,7 @@ Class UTMainHandler : EventHandler
 		{
 			if ( (level.GetChecksum() ~== "FBC3B6622A8B74AE06DE01E70007AC33") || (level.GetChecksum() ~== "D8206A3414DA967F2159473B5791139E") )
 			{
-				TexMan.ReplaceTextures("-noflat-","DefTex",0);
+				Level.ReplaceTextures("-noflat-","DefTex",0);
 				TextureID skytx = TexMan.CheckForTexture("BlueSky",TexMan.Type_Any);
 				level.ChangeSky(skytx,skytx);
 			}
diff --git a/zscript/utgore.zsc b/zscript/utgore.zsc
index 048d2ce..6fb73ed 100644
--- a/zscript/utgore.zsc
+++ b/zscript/utgore.zsc
@@ -156,7 +156,7 @@ Class UTBloodTrail : Actor
 	override void Tick()
 	{
 		Super.Tick();
-		if ( level.frozen || globalfreeze ) return;
+		if ( isFrozen() ) return;
 		if ( !target ) return;
 		SetOrigin(target.pos,true);
 		double ang, pt;
diff --git a/zscript/warheadlauncher.zsc b/zscript/warheadlauncher.zsc
index 206c2d3..89992c3 100644
--- a/zscript/warheadlauncher.zsc
+++ b/zscript/warheadlauncher.zsc
@@ -48,7 +48,7 @@ Class ShockWave : Actor
 	override void Tick()
 	{
 		Super.Tick();
-		if ( globalfreeze || level.frozen ) return;
+		if ( isFrozen() ) return;
 		if ( alpha <= 0 ) return;
 		if ( !t ) t = ThinkerIterator.Create("Actor");
 		icount++;
@@ -164,7 +164,7 @@ Class WarheadExplodLight : DynamicLight
 	override void Tick()
 	{
 		Super.Tick();
-		if ( globalfreeze || level.frozen ) return;
+		if ( isFrozen() ) return;
 		args[LIGHT_RED] = int(255*lifetime);
 		args[LIGHT_GREEN] = int(192*lifetime);
 		args[LIGHT_BLUE] = int(128*lifetime);
@@ -224,7 +224,7 @@ Class WarheadTrail : Actor
 	override void Tick()
 	{
 		Super.Tick();
-		if ( level.frozen || globalfreeze ) return;
+		if ( isFrozen() ) return;
 		vel *= 0.99;
 		A_FadeOut(0.1);
 	}
@@ -275,7 +275,7 @@ Class WarShell : Actor
 	override void Tick()
 	{
 		Super.Tick();
-		if ( globalfreeze || level.frozen ) return;
+		if ( isFrozen() ) return;
 		if ( !bMISSILE ) return;
 		if ( vel.length() > 0 )
 		{
@@ -375,7 +375,7 @@ Class GuidedWarShell : WarShell
 			justleft = false;
 			bHITOWNER = true;
 		}
-		if ( globalfreeze || level.frozen ) return;
+		if ( isFrozen() ) return;
 		if ( !bMISSILE ) return;
 		if ( !target || !target.player || (target.Health <= 0) )
 		{