Basically, they’d be Sure. Basically, they’d de called the Empire of Khan, based off the good ending for the Khans of Fallout 2. They’d be radhorse-riding warriors, creating a huge kingdom stretching across most of Wyoming, and bits of northern Utah and maybe Colorado. They’d be inspired by the actual Mongols this time, though. They’d accept people of differing religions, heritage, and even species, with ghoul and super mutant soldiers being valued for their utility. They’d have been founded through a union of a few tribes in the Wyoming area, united under the leadership of the Khan leader (a name I had for him is Utan). Chief Utan would’ve been the successor to Papa Khan, and would have goals of uniting much of the Northwestern United States under his banner. Also, they’d have some Followers of the Apocalypse members amongst them, mainly acting as scholars and such. Their capital city, I imagine, could be something like “Death Hand City” along some huge river bank in the region.