The AC 42 doesn't require any skill and oneshots you almost everytime

It's totally * at anything past medium range due to spread and at closer distances it is easily matched or out done by SMG's. It just happens to have a vertical recoil that finishes with a head shot when you start a burst to the chest at close to medium range. Unless you have armor on any gun will kill you before you can react if you take two to the torso and one to the head.