So I've just come back from my first semester of University for Christmas, and I was really looing forward to giving MW2 multiplayer a lot of attention; but alas what I found wasn't the fun and addicting hour consuming experience that was CoD 4, but simply me getting shot in the back or just by people in windows i couldn't see over and over and over and over again. If it wasn't the campers that truly piss me off it's the incredibly overpowered dual shottys, those things have a bigger range than Brian Blessed's bellowing voice. 
I thought after getting to know the maps I'd have a better time with the game, but it hasn't happened so far perhaps because the majority of the maps are horseshit, sure they look pretty but there is just way too much stuff in them and too many hidyholes for campers. The only map I truly enjoy is Terminal.  
So yes I am really dissapointed with the multiplayer, and if I could some up my feelings towards the game it would be simply. 
I like Moderm warfare 2, I just don't like the people who play it.