@Nightsurge
I have to completely disagree with that "once you've played one you've played them all" like comment.
Going from CoD4 to KZ2 required major adjustments. I was doing fine in CoD4. Rough start but during my last 3 months of playing that game I would always end matches with 1.8:1 or more K/D ratio. Killzone was a completely different game. I couldn't run and gun. I had to stay with others. An assault rifle, pistol, grenades and a purely rambo attitude didn't cut it any more. Also, defending objectives in KZ2 was usually more intense than pretty much anything i've witnessed in the over 3 weeks in total hours I've put into CoD4.
Going from KZ2 to MAG, there experience felt a bit more Arcadey than like CoD4 but again, those that came in expecting cod4 like play never did aswel as everyone else that took the time to adapt to the game.
4 ≈ One