All the suggestions in the original post are great except maybe the reward system can be reworked. I'd like to have a better reason to control a town, besides having control over the militia and looting a magic box. It still feels too much like an arcade game. It may be a bit too ambitious, but I'd like to see town control actually have an impact on the wasteland and the economy in some way. For example, having the option to control uranium refinement prices in Broken Hills, or cutting off the supply entirely. Obviously this isn't a fully fleshed out suggestion, but I'm just throwing it out there.