And that there is a game I'll never buy. I hated TF2. I don't play a FPS if it doesn't have iron sights.
I currently play mostly CoD4, but sometimes I switch over to Red Orchestra 2. If only they made RO2 less...chunky. Things don't feel smooth while playing it.
Also, maybe I'm weird, but I love multiplayer more than singleplayer. If I wanted a story, I'd read a book. I play Multiplayer because I like forming teams with friends and being in an environment where I get to test my wits against other human beings.