Yeah, I could never really get into the multiplayer on MW 2. I'd have a good game where I'd get a dozen or so kills and then turn right around and have one where I'd just get slaughtered. There's people out there that are really good.
Plus there's silly crap about the game that bugs me, like there was one match where the same guy killed me about 5 times by just running past me and knifing me. I was sooooo pissed. I kept looking for him to get him back and he'd just run up and knife me again. Gimme a break, I'm shooting bullets into this guy but he doesn't break stride and kills me with one swipe from a knife. Lame.