It's mostly always gonna be "Except for baddies."
I'm working on 'em
in the Playerworld Main Forums, they're just proving difficult - mostly because I can't test anything for serverside, so nothing I do is really pertinent. Massokre said he was gonna hook me up with access, but he's not the first and I doubt he'll be the last so to promise.
And then there's always the problem of Details, like how arrows can't go through walls anymore...unless you're really clever with Move scripts...