[Raeiphon]

It's hardly an issue whether it's easy to obtain or not.

With my system, the lethality of a sniper is based on three things:

luck, rifle and skill. Luck determines whether the shot is a perfect one, or whether it's a near miss or a non-lethal blow to someone other than your target. Rifle determines said luck, and also the amount of hits and time it takes to kill a single player. And finally, skill determines your ability to find a spot where you can snipe effectively from a distance without being seen, detected or fired upon.