Sandbox with a controlled amount of add-ons that would make the server fun, but not bloated with content that would take an hour to download.
That sounds good. Nobody likes downloading a stuffton of stupid playermodels.
If you're using M9K Specialty, disable the Davy Crockett.
Haha, m9k is out of the question. I see it on every gmod server and i'm tired of it, so that's not happening.
get FAS or customizable weaponry
Those are good. I'll probably get those, but I'm a big fan of mad cow's weapons too. Maybe all of them.