Playing the first Bioshock Infinite DLC, Clash in the Clouds. It's like a wave based survival mode. It's sort of annoying at first until you upgrade and unlock stuff. I couldn't actually complete the first arena because the last wave was 2 handymen at the same time and sometimes they were actually spawn killing me upon restarting. It was ridiculous. I had to back out and beat 2 of the other arenas, then go back. Thing that sucks about that though, once you back out of an arena, you have to start at wave 1 again. It's a weird DLC that I don't think really has a place in the Bioshock series.