Merge pull request #12153 from duncathan/destroyfixes

Destroy() fixes

code/controllers/master_controller.dm

@@ -19,13 +19,17 @@ var/global/datum/controller/game_controller/master_controller = new()
 	if(master_controller != src)
 		if(istype(master_controller))
 			Recover()
-			master_controller.Del()
+			qdel(master_controller)
 		else
 			init_subtypes(/datum/subsystem, subsystems)
 
 		master_controller = src
 	calculateGCD()
 
+/datum/controller/game_controller/Destroy()
+	..()
+	return QDEL_HINT_HARDDEL_NOW
+
 
 /*
 calculate the longest number of ticks the MC can wait between each cycle without causing subsystems to not fire on schedule