What if while you were looting a house when you hear a plane/helicopter fly over when you hear a parashoot. And some where in that general area you could find a crate either full of medicine, weapons, or food that was dropped from it. Maybe while you were looting or wandering through a street. When you see a survivor limping or holding his stomach and you could try to save him or shoot him to take his stuff. That Npc can be wearing a certain set of clothing that designates what he drops like if hes military looking he could drop a gun or something. Or a random event like a group of survivors holding out in a building getting over run and you could leave them to die(come back later and take their stuff) or help them and they will give you something in return? Yeah, that's it.
