Snipers would spawn on random watch towers and they would have sniper rifle , glock , cuffs and tazer sniper rifle damage : 2 shoots in body = kill or 1 shoot in head = kill sniper rifle reloads time = 8 secounds bullets in it = 30 and infinite. You would can get sniper when you get lvl 25 I thinks its good sugestion.
But like still at this point the amount of raids happening and the fact they would have to aim to try to hit you while having like 5 criminals charging the prison it would come as some sort of a defense and as i believe most prisons irl have some type of it.
The M4 is already brutal since it has very little recoil (compared to the AKM at least). People already use it as a sniper. An actual sniper would be either overpowered to used as a shotgun.
If they do add snipers they should make it two bullet and 6 second reload to make it not be op. 4 bullets to the body to kill. Two to the head to kill.
Maybe there would be an aim assist because sometimes a HiComm is coming back from outside the prison and their outfit is pretty orange making you think they are a Criminal it would say Friendly or enemy and it would also track them a little by clicking a key when you are ADS and it would follow them if they are enemy and if you were to shoot it would deal reduced dmg and have a lot of recoil regardless