Yep...given the fact that you respawn randomly every time you die, the game is fast and lends itself to rushers. Because people just rush with out regard, unlike CS. So i can't see how one can dominate with sniper rifle - UNLESS you got another designated team member help you cover. I remember when I used to play CS, sniping was manageable. You can get big scores.....
Recently when I run into snipers, I usually get killed the first or second time because they catch you by surprise. However I usually get them from there after. =)