Not trying to start an argument here because I'm not versed on the games myself, but: didn't Halo take a lot of cues from Marathon, Bungie's previous series?
Sci-fi FPS does seem to be their speciality, though. Not that I'm complaining, I'll happily take a multi-plat game similar to Halo. Surprisingly, there's very few other games on the market that get close to the feel that series has, imo.







