I must thank you for using a Post Apoc setting, i was wondering, if the city would be sort of like Megaton on Fallout 3? it has a big recycled wall made from old plane wings and other veichles.
Setting/year:
Not too distant future, maybe about 50 years from the present, and about 20 years after the moon crashed to the earth.
Cause:
The Moon falls to earth, causing widespread destruction, survivors hid underground to escape it's wrath, and when the resurface they find that the whole planet is left in ruin.
Area:
A small town in a rural area.
Buildings:
Elementary school, turned into a town hall/Public Residence, A few destroyed buildings, A large barn thats used as an armory for the townsfolke, and a country manor located on the outskirts of the town but still inside the town wall.
Features (could take up baseplates, or just be small things you'd like to see) : A large radio mast that is used to call out for other survivors and traders. A shard of whats left of the moon located in the town square untouched as a rememberance to the event.
People:
Rag & Tag band of survivors, traders moving in and out of town, An authority figure (Mayor, Sherrif etc.)
Enemies include Mercenaries hired by other towns, and a Cannibilistic Tribe.
Scenes (interesting scenes you think could be put in somewhere) :
Mayor/Sherrif dictating at town hall, Mercenaries trying to climb the wall, Cannibals Devouring a citizen outside of wall.
;)