Yes back and rear are the same thing. Man catchers gimmick stun is with running attacks only. So run and make the very light tab on the mouse button for a running attack. The stun doesn't last long tho. Don't use man catcher tho its not a very good weapon. Maces are for clanging. So you should always make sure it has a clanging mod in it, and mancatcher cant have a clanging mod so it kinda defeats the purpose of taking a mace type weapon in my opinion.