With the recent deathmachine glitch the whole idea is to wait until it runs out. With the wunderwaffe it does not have a time limit so it's not possible , BUT the idea is it switches off the gun and if someone leaves the game while your on wunderwaffe it switches the gun. I thinkit might work the sane way but instead of waiting for it to disappear you get someone to quit. Obviously you'll need ensemble cast. If someone could try that would be cool. (I think instead of infinite ammo you might be able to do this and then you can switch gun / 3 gunn with it) it just a thought not entirely sure I'll try to test tomorrow