beating off seems to help me

jk but seriously beating off will help ok ok ill stop
Find the gun the fits your gaming style
Try different sensitivity untill you are good with one...I noticed I started out with 3 on MW2...after 5 months I was at 7 8 and 9 sometimes 10.
Same with Black ops I started with 5 to get used to it and im moving up...lvl 5 seems like lvl 3 to me now.
Know your spwn points on every map, remember the hot spots people use, don't always run around corners cause I get myself killed sometimes by running a lot.
And most important of all PRACTICE MAKES PERFECT