For some reason I can't even get mouse aiming to work. I turn it on, and it doesn't accept any input from my mouse at all.

EDIT: NVM, turns out I needed to enable it in the server tab.

I have a suggestion for mouse aiming though, I think your character should face left or right depending on which way you're aiming. (So you're not shooting out of your butt.) If you're moving and shooting in a particular direction, make the running animation face that direction as well. (And maybe reverse the animation so it looks less like moonwalking)