The next prize for a certain amount of hours should be Guard Dogs.(Maybe at 15k hours)
Two Guard dogs will be awarded to the Gang leader.
You can place them anywhere in the base. They attack once every second dealing 8 damage. Each Guard dog has 100 HP. You may NOT heal the Guard dog and once set,it can't enter or be moved into other rooms.
Once a Guard dog dies,it can't be used for another 24 hours.
I think this would be an AMAZING award and it'll seem cool to see in bases.