Make the new DB system able to drop on an area within the city. The faction targeted get hit but also the surrounding are get radiation poisoning. Territory warfare at is best :)
-exact area that is hit is lost to the owning faction. Can only be re-claim after 7 days (at that timr the area is open to any other faction closest to it), waiting for radiation fall out to disapear.
-immediate surounding area are heavily affected, factions affected can put people on the hill but risk the chance of becoming ill with radiation poisoning. Effect last for 5 days.
This would bring an awesome twist to the game.