All weapons had their accuracy reduced. I don't like the rifle nerf, I don't see much change in the SMG. But with the shotgun, the change is so easily seen, that you will be frustrated when you are supposed to get that kill on that person, but then unable to do so. Two shots or even three to kill an enemy up close. An SMG would easily mow you down, a rifle may stand a chance if they can drop that shot up close. The shotgun is supposed to be the best at close range, not the damn SMG. In all the matches that I now play in, I'd rather be using the SMG than the rifle and shotgun as I know it's the most accurate weapon in the game. But with all this spraying it's so boring I'd rather post horror massacre butcher compositions in the Lounge than to be playing Ace of Spades. And that is what I am currently doing these days by the way.
In a less messier explanation.
God tier : SMG
Fail tier : Rifle
Sh*t tier : Shotgun
Two or three shots with the shotgun to kill up close, SMG can do it better. Rifles can't properly shoot damn heads, SMG can do better.
Discuss about sh*t tier shotgun, if you ever even use it.
