I don't think tactical camping is in itself a bad thing. I mean come on, as a sniper, what the hell else are you supposed to do? No one is going to run-n-gun with an RSASS. The best players, IMO of course, are those who do a combination of tactical sniping (camping) and are constantly changing positions. Its what I try and emulate in my gameplay. Ghillie suit + sniper rifle + 2-3 kills in one spot = get your ass up and move to a different spot. Grab a few more kills in that one and then keep moving.