Getting pwn'd by the racist homophobe eight year old up the street.
Tea-bagging someone else.
All the fake play'n bots.
Opponents using a super-accurate aim hack.
Paying extra for maps that should have been shipped on the damn disc.
Waiting 10 minutes for a game to start, that ends the moment you enter the arena.
Space Marine? More like Space Sailor with that mouth.
The single player adventure.
Space Marine is a never-nude!!