I'm not so sure about having a game based around just one element that can be found on nearly every other game in it's genre. All though having said that, sniper is my favourite class in first person shooters.
Big news for those who were dissapointed with its exclusivity, its coming to PS3 next year!!!!! Dont get too excited though lo. Theres a preview thread up for this now so you can discuss it away in there if you wish, or stay here if you like Its being improved from the 360 version so it shouldnt be as bad, maybe, just maybe.