I usually don't like shooters, but this one was so funny I didn't care. To me, the funniest part is the music for the scoreboards. That was hilarious.
P.S. I'm Catholic, but I know it's just a game, so I don't worry about it.
P.P.S. To all those who don't like the music: Every computer has a volume control, so a mute button is actually kinda pointless. And anyway, it DOES have a mute button, just press M until you see "Music: Off" (about 2 presses should do it).