It seems like Dynasty 8 is starting to come back in action. I was thinking if it would be possible for gangs to purchase property and use it as their own hideout/head quarters. I believe the O'Connors have something like this already implemented, so only their members can access the property.
In addition to gangs owning property to use as their own hideout. I feel like a cool feature to add on top of that would be to add gang safes. They would be located somewhere in the hideout and can only be accessible to members of the gang that are of a certain rank. For example, anyone above a prospect rank. This way gangs can share resources or stash items for later use. The safes would act exactly like the closet system, or something similar.