Well, holding the center view key, home by default gets aim for headshots with sniper real easy. Thats not really autoaming, so yes, they are that good. and those super human playes have really low ping, or are just that good, the former is usually the case. Theres no cheating but a problem with weapon spawning comes up every now and then.
HINT: put mouse sensetivity down it helps, I got much better with that.
If your so hooked you might like this: http://www.eclipticalrealms.com/warg....asp?gameid=13
I'll check back if you have any questions.