The footsteps are horrifically loud, the m4 should be in the smg class, on the m13 you can get .300 blackout but an m4 that fires 5.56 (.223 compared to the .300 caliber) that still does more damage than your .300 blackout will. I do not think they thought about anything that has to do with call of duty when making this game, one more thing, the 725 shotgun needs a sniper scope because you can wreck people from 100 yards away.