So you can't deal with something unless you can charge right in its face, sums up what most of the irritating hordes of Marauders and Juggs are about in Warzones.
Snipers / Gunslingers are stationary turrets, they're supposed to be dishing out huge damage and make it dangerous for other classes to just walk up to a certain area. L2 position yourself, like a sniper must always do, and use LoS to your advantage.
I just los snipers or shoot first them in the back of the head
snipers need all there abilities to stay alive but if they get you in the open well its your fault