While we’re mentioning factions. Couldn’t you just make the rewards like scrip or credit with the faction? Basically you have an account you can go over on the radio and request certain things to be deducted from your account. Then you add I dunno, dead-drop locations for your “purchases” ala Watch_Dogs or GTA. Say you actually purchase supplies and items over a trade interface which are dropped at a location somewhere outside the player’s “reality bubble.” As you do some missions for a particular faction they can grow stronger or expand their radio support coverage and the kinds of support they can offer over time. Help a faction take over garage, their dead-drops and spawned NPC vehicles get better. Help them take over a relatively pristine hospital and they can now do medical supply drops. Take over a CBM-chopshop and you can get the faction doctor to install CBMs you find.
More example missions: Dead-drop courier. You are one link in a supply chain of relatively trusted runners. You’re asked to pick up a dead-drop in a location, and then place it in another location for someone else to get. It would be relatively simple, find an area, discovered or otherwise outside the player’s “reality bubble” and place the delivery drop, a quantum loot container, like “a box of medical supplies”,“crate of military rations”,“static bag of high-end electronics” that drops random loot when opened. To complete, you take the dead-drop item to a specific location as instructed by the mission-giver, leave it and then move away from the drop so it’s no longer in your reality-bubble, which will trigger mission completion. Failure to complete in time will signify mission failure, either because you took too long or you opened the container, stealing the supplies. Basically the quantum loot item is a key item that can be destroyed to steal the supplies yourself.
Variations on this particular mission are plentiful: You could also intercept radio chatter between a faction operator and runner and ambush the runner or steal the dead-drop after it’s left. Alternately you could pick up distress chatter and intercede on the faction’s behalf, completing the dead-drop after their runner is killed in some way or another (car crash, zombie horde, cop-bot murder for jay-walking, etc.) netting the player lots of bonus favor with the faction.