Simple solution. In no way can you just slap a scope on any weapon and it be zeroed in. Make scopes seperate from all types of rifles 50 included and put in a zeroing system where you have to find ammo and then properly sight your gun in. Realistic and would keep scrubs from just grabbing a gun and finding a hill side. Also true for other types such as ACOG. Also when better zombies get implemented would be a very dangerous indevour.