I don't hang around these forums much, I apologize if this has been suggested before.
As a companion to the deadly radstorms mod (making them fatal),
I would like to see a mod that makes NPC's aware of and fear rad storms. They should be running indoors and NPC's who stay out should be incapacitated (instead of killed).
It's just very immersion-breaking to be at any populated area and be tooled-up for or freaking out about a radstorm while every NPC is walking around casual clothing and acting like it's a regular day.