I haven't been playing competitive FPS games for a long time, but they used to be a dime a dozen. There must be some kind of alternative multiplayer FPS that you could just play instead if you're not happy with Call of Duty.
I have a friend like this, well, he was like this for years and years, and I get it. You want to follow the hype and excitement of the greater gaming public when a game is new, but it's just so fleeting when you could go play nearly anything similar with an active playerbase basically... forever.