Lesser military themed campaigns

[guncrazy]

Hey everyone, as a previous thread stated we are starting a campaign in Texas, year is 2025 (raised from 2020) and going with the basic timeline with some revisions. Anyway, the group has made it somewhat clear they would like to play more of a "Postman" style RP. Although the military will be involved. So I was going to have the PCs start in a small town on the verge of anarchy due to dwindling resources and lack of security. To get them started I was thinking of having the town raided by a large militia that essentially controls the region. Maybe extoring the town, kidnapping a resident who knows?

Any other ideas on how something like this could play out in the larger picture? The group is used to D&D and Warhammer stuff so I imagine "nation building" or something of the kind will be involved later.