Unless you overload the map of course, you can have a perma overload if you stack a loud of **** inside a weapon holder but then half your map dissapeers, your in no luck mate, I was going to make a map outside of the boundaries with the gardians still on but with the annoying sound im in no luck ;l
That wouldn't work. When you overload the map, it'll be back to normal when you start a new game. Sadly enough, no there is no way to work around this problem but I understand how this is annoying.