Gun and Showdowns at Hight Noon

[Cerealkiller]

So the gunslinger is going to be a great class, but what about the flavor of the class. Is their going to rules in the ultimate combat for gun showdowns i.e. (the ok coral or high noon gun duals)? I mean if you are going to have a gunslinger then you have to have some of the unique flavor of the classic archetype.

[Yucale]

As long as the flavor is optional, that sounds great.
I'm not sure there need to be extra rules to make something like that work, actually... magical duels can be done with the Core rules, for an example.

[Maxximilius]

I suggest you to look at this, and at this topic. :)
Flavorwise, the alpha gunslinger already got deeds that evoke this kind of image when you imagine what one would look like.

But the community has put a lot of work to help improve the class, and this take should show you what kind of deeds could help the gunslinger to be really different for every player, and like no other class. So yes, this departs from a pure fighter archetyp, but I believe it would be better for the gunslinger in the end.
I don't think that gun showdowns will get their own rules in Ultimate Combat though, after all, a duel is a simple initiative-check + surprise round if you're lucky.