I agree that this is a pretty big problem. I can't speak much to the AR since I stay away from that (the amount of recoil is ridiculous, but that's for another thread). The sniper, however, is too much. I have died too frequently to one shot with 100% health, 100% shield, and a helmet. So even if it was a headshot (and I imagine it was), what is the point of the helmets? Something has to change, either damage needs to be more standardized or armor needs to actually do something since I never notice its effects.