About 4 months after Modern Warfare 2 released, I sold it to a friend of mine. This was about half the time I owned Call of Duty 4, and I simply sold that game for its age. I was sick and tired of the constant killstreaks in the air. Sure I can shoot them down with stinger missiles, but playing pick up with strangers and watching them act as kill fodder doesn't help things.
I was tired of chopper gunners, noob tubers, knife monkeys, and quick scopers.
Then I got Bad Company 2 as a reward for taking part in a play test for an EA game.