Just got MW2 on PS3....and getting used to play FPS on a controller (rather than a mouse on PC) has taken a while...but does work with practice!
Awesome game...Just starting to get the hang of playing multiplayer...really tough at first...just being killed constantly, so I get where Griff is coming from, I mostly suck right now too!
But as you learn the maps, and find the best weapon combos it does get easier...realising that with higher ranks you get better weapons and other power ups also helps out...no wonder the higher ranked players are better at it...they have all sorts of extras! F'ing gunships for starters!!! And radars & heart monitors also help!
Only got as far as rank/level 18 so far, but some of the extra's are already dead handy...now starting to kill as often as I die...sometimes...need more practice!
PS3 ID: blue_pinky