Chaos isn't bad, it's good; it's the way the world works.
Other than that, Junktown is guarded, you shouldn't be bringing anything you can't afford to lose into town, suicide bombers are hilarious, and--
most importantly--if you're the kind of person who would, given the power, perma someone who kills a character in a guarded town, I'd say this game probably isn't for you.
Also, Dark Angels ftw.