I prefer the M39 EMR Desert. It's a really accurate gun. Full auto, 40 rounds (2 20 round mags), 98 out of 100 accuracy, and a 2 shot kill. Really awesome sniper. The best one however would be the DSR-1 Tactical. I've used it once and it was awesome. But, the best sniper that you could get permanently would be the M39 EMR Desert. That's my opinion anyway!