Add some code to have NPCs react to being shot from afar. As it stands, they just hold in place and get shot. If they start bleeding, they just bleed out on the spot. My suggestion would be certain types of NPCs try to hunt down the shooter, while other scream things like "FUCK! SNIPER! RUN" and head off in a given direction to escape being the victim of another round.
Maybe combat savvy NPCs even head to the nearest Doc if they are bleeding out on their feet and out of combat to get patched up?
In a game I used to play (Lensmoor), when you shot your bow into an NPC from an adjacent room they all automatically came into your room and aggro'd on you. I think there's definitely more room for nuance here in SD though.
