I stated this before in another thread, but i'll post it again.
You could set up a warehouse that can be controlled by any gang for a set amount of time, (like 2 hours) and for that time, the gang can build weapons/ammo/etc for cash. They don't get to use any of this equipment, its just for pure profit.
Another idea is putting in Control Points around the era map (CPs) Whichever gang has the most control on the CPs will get damage buffs, speed increase, etc.
Lastly, a quest hub for gangs only would be the most obvious way to increase gang activity. Whichever gang has control of the quest area, can do the daily quests for a set amount of time before it is contestable again.
Would be nice to see the mass messages filled with "DANGIT BLACK HOLST, LET US FREAKING QUEST ALREADY!"
