Thread for snipers,i need your opinions.

Ok,I've played the game for 4 hours. I'm a sniper,80% of my time in others cod i use snipers,so it's important to me that i do well with them. In WW2 i suck with snipers,i can't hit a shot and often i get hitmarkers. I don't know why. I can deal with no aim assist,BO3 was the same,but WW2...I don't know. Anyone in my situation? Do you have some tips? I think i'm going back to IW meanwhile