muzzle flashes where they shouldn't be

I don't know if anyone else is getting this, but for some reason when someone starts shooting I see muzzle flash on my side of the map. Example) My opponent is shooting their m16 and I'm seeing muzzle flash 6 inches to the right of me while my opponent is camped out on the other side of the map. This is really throwing me off since I use the muzzle flash to detect if someone is behind a corner and it turns out they are no where close to that corner.