TRUEFALSE and changed the logic

code/controllers/configuration.dm

@@ -175,7 +175,7 @@
 	var/rename_cyborg = 0
 	var/ooc_during_round = 0
 	var/emojis = 0
-	var/roll_credits_round_end = 0
+	var/no_credits_round_end = FALSE
 
 	//Used for modifying movement speed for mobs.
 	//Unversal modifiers
@@ -576,8 +576,8 @@
 					ooc_during_round			= 1
 				if("emojis")
 					emojis					= 1
-				if("roll_credits_round_end")
-					roll_credits_round_end	= 1
+				if("no_credits_round_end")
+					no_credits_round_end	= TRUE
 				if("run_delay")
 					run_speed				= text2num(value)
 				if("walk_delay")

code/controllers/subsystem/ticker.dm

@@ -461,9 +461,9 @@ SUBSYSTEM_DEF(ticker)
 
 	to_chat(world, "<BR><BR><BR><FONT size=3><B>The round has ended.</B></FONT>")
 
-	var/rollcredits = config.roll_credits_round_end
+	var/nocredits = config.no_credits_round_end
 	for(var/client/C in GLOB.clients)
-		if(!C.credits && rollcredits)
+		if(!C.credits && !nocredits)
 			C.RollCredits()
 		C.playtitlemusic(40)