When you use a sniper the flinch is verry big whem shot. The recoil is also bigger on snipers then on other weapons. So if you see a sniper just shoot him or run away. Also snipers are only a one hit if its a headshot or the target is weakend. They are not usefull in short range, getting a kill on verry short range is because of luck or because the target is verry bad. And with the addition of high RoF low impact snipers, a bodyshot will only take away 100-120 health. So plenty of time to get away.