with the Warwick compound serving as the de facto planetary capital.
That's going to be a pretty miserable place to live without electricity.
Generators? Someone will have to produce oil, refine it, transport it, etc. Where does the power to do all that come from, with virtually all Armageddon survivors having only a high school education?
Well, it may be a miserable place to live, but at least the windows will be clean.