I think some good scenarios that have some outfits ideas that come with them, are:
-Bank Heist (There're so many banks with no good loot, so you would have coppers and robbers place with a few guns and money around, maybe a few dead bodies, damn those headshots)
-Near the mall should have a small rock concert, so you should have your fair share of metalheads.
-A small party with a few trucks close to the trailer park area, filled with cigarettes and booze.
-Maybe a motel Serial killer (The world never was a pretty place).
-a Hacker dude, with a kitchen filled with microwave food and soda.
-Illegal car race, Kentucky fast and furious style with crashed cars around after a few zombies came up
- some old veteran that saw what was happening and went full Vietnam style and fought till his last bullet
Well, I think that is all for now.