Oh been meaning to comment on something you said earlier VM. Sniping effectively takes more skill and practice then arguably any other type of play in this game. You have to keep players at bay so you can pick them off, long range is of course easy to deal with (barring crack shots with an assault rifle) and short range with a shotgun, the biggest problem is people closing in from midrange which means you are screwed if you cant hipfire your rifle as you dont have time to switch to a shotgun before you get mowed down also quick scoping takes an insane amount of practice. Hitting people while they are running at a long distance is very difficult but perhaps the most difficult and most nerve racking is when yo and an enemy sniper see each other at the same time, you have to be first to get your crosshairs on him or your head just met a bullet. I am happy to say I can do everything I listed rather effectively. Also forgot to mention effective placement of claymores and use of smoke (if you use anything else as a sniper, I dont understand you) If you can put up a good streak without getting killed your pretty lucky or pretty skilled. There have been times I got rushed by 3 people and managed to live (popped a smoke, had one walk over my claymore, fired my shotgun and got another and hit the floor and got the last as the smoke cleared and I could see him, takes skill, patience and nerves of steel sometimes
Not downplaying other classes but I prefer precision to spraying bullets