Well I think Ive finally started to hit a nice stride with this game. Ive been playing around with a lot of different weapons. Been doing a lot of P90 and other guns where you can run and gun, and I think its really improving my aim/reflexes even when I have slower movers like RPD or M60. I had a couple 25/4 type games, and a lot of 21/10'ish games. The one area Im still not that great at is sniping, but primarily because I dont try it much and am too impatient.
Oh and, the frag 3x perk really makes for fun ; ) Ive been chucking away like a mad man and now get kills like so many others have done to me!