While I do have certain hatred Interchange in MW3, I'd probably have to go with MW2's Rust. If you want to have a bullshit clusterfuck just vote for that map. Also 2Fort in TF2 for the 360. If you got an asshole for host you could bet that your team was going to get spawn camped until either you quit or they got bored.
EDIT: Almost forgot Highrise in MW2.(I think that's what it's called anyway) It was always bullshit when a couple of guys from the enemy team would somehow manage to sneak their asses onto the roof and snip their bastard heads off at your team's expense. Good luck managing to counter that giant load of bullshit.
EDIT: Almost forgot Highrise in MW2.(I think that's what it's called anyway) It was always bullshit when a couple of guys from the enemy team would somehow manage to sneak their asses onto the roof and snip their bastard heads off at your team's expense. Good luck managing to counter that giant load of bullshit.