Well, the point of a gun duel is that you build up to it, and it occurs in an environment where it's a marginally acceptable way to resolve a dispute, but a straight-up attack isn't. Even if you're on the frontier, if you just go around killing folks, the law will run you down.
But if someone's offended your good name, or has wronged you, you can challenge him publicly and force a duel. If other people interrupt, they lose face.
I know.

It's about striking a balance between gamism and simulationism, as these things always are. Your approach seems overly long and fiddly to me and uses too many non-core concepts. I'd rather see something which achieves the same goal but is a bit easier to manage.
