The sentence below is a lie.
The sentence above is true.
Creating an un-ending paradox, Slapstick, eh?

And if two heavies slide-tackle each other, and no one is around to hear it, do they make a sound? :tongue:
It'l work, yes, but it's only a matter of time before someone finds where you are and shoots back, endangering you (and possibly killing you). But if you spend that much time just shooting, trying to annoy the other team like that, you're not helping too much.
Back on topic, you do have a point. However a good sniper in a high perch can be a great demoralizer for the enemy team. Even better, a highly mobile sniper that follows his squad around from a series of vantage points can be invaluable under the right circumstances.