Well, it's a rifle. If it was named a SNIPER rifle then that's when they would need to lower the fire rate unless it's a semi auto sniper rifle but still. Honestly, it should be a bolt action rifle and turned into a FULL sniper rifle because the rifle is technically a slower assault rifle which is why it's accuracy is amazing at great ranges and even close combat.
All together I think AoS should add bullet drop. That messes with aimbotters and it will force the player to use skill.
Like after every 20 blocks or so, your bullet drops a bit and it constantly does that after every 20 blocks because the rifle with some mods and your shots are just dead on (except if you get bad mods :P). (Bullet drop will only effect rifles though. Shotguns will get more spread and SMG will be range nerf)
SMG, that should definitely get a distance nerf because of how you can basically go sniping with it and because of it's outrageous DPC (Damage per Clip), you can just start mowing down groups of enemies with EASE.