My friend has bitten me up last saturday at this game (Call of Duty: Modern Wafare 2), and I became piss off 'cause his right hand was injured and he won the game -.-'.
Well, I could say that I'm not used to PS Joystick anymore, four years ago was the last time I played a PS game, and since I played with the Wii, I got so used to play those kind of games with the Wii remote - it's most like you're sighting with a gun.