[quote name='redlupine']And I'm confused as to why you call this a sports genre? Sports games are in the sport genre, you can't run around shooting and firing explosives at your friends in real life (well, you can, but I wouldn't recommend it)[/quote]
A sport is a short competitive game that you play over and over in matches, as opposed to a game that you experience once and has progress and an ending. Multiplayer games like Deathmatch and Capture the Flag seriously are sports, despite the lack of exhaustive physical activity (though dexterity is involved). You could play a game like that for a lifetime and have nothing to show for it at the end of the day.
I'm sure it's a fine game; I have every other Valve game, I just find the idea boring, and I dislike the implication that I'm a dunce for being a PC gamer who isn't interested in TF2. There's such little difference between an FPS level and an FPS arena, but it's still a make-it-or-break-it difference for a lot of people.