Currently, a few rounds into death run, the boss who's out and the players switch sides, so the boss is running while the players are pressing buttons. It leads to a bunch of confusion, tomfoolery, and lack of cooperation. This began recently, with the whole map fiasco thingy. It's a fun mode, hate to see it broken.
Edit: Realized a few seconds later it'd probably be better to put this in server support, but who the looks there anyways?