Please excuse me if this is a repost, I just joined a few minutes ago.
So, about the mutator, everyone knows what I'm talking about. A mutator that fixes the third person view so that you can actually aim instead of just firing in a straight line. I asked a few players while playing online on the server and they all agreed. I would suggest the Aerial View Mutator (here's a link). There is also a modification that makes the crosshair normal as in first person (link). I've seen the mutator on other servers and it works really well.