Thrusting flagpoles in areas where the sun don't shine
I always found it strange when the game decides to put me on the axis side. I know it doesn't make me a Nazi or anything but you have to admit it's still kind of odd on some level, like jerking your friend off in the woods behind a movie theater. Sure nobody saw it but you and your buddy know what happened.
In theory DOD: Source is supposed to be a team based shooter but inevitably ends up being an "every man for himself" rampage like any other online shooter. You'll get some enjoyment out of changing classes up and playing around with the source engine, but in the end someone on the other end is going to own you like a black man next to your cute girlfriend.
I've always had a thing for Asian chicks.