did you try reinstalling game and video card drivers? I noticed with one of the last updates the bombing zone makes a crackling sound and I get laggy. maybe its a audio driver issue for you.Also sniper with suppressor and 8x is possible to assemble and then it is 1 shot kill from nowhereSquads cannot identify the shooter location till they are all dead. BTW I stopped playing the game because it is crashing on me every single game now.