The last wave is so obnoxiously bad that when we saw everything spawn, my friends and I all started laughing and quit out of the game. If your team throws on a couple different item combinations then beating the dopplegangers can be literally impossible or take hours.
Last Stand is fucking terrible, you basically have to balance your entire item loadout around the doppleganger rounds and if you screw up at all then you spend 5 minutes kiting mobs around the map so you can run back and rez someone.
