[Demisis_P2P]

At the end of each week turn gang points into money that can be distributed by the gang leader/co-leader. Don't make it automatic. This way if a gang's leaders are inactive people will get upset very quickly, or if somebody is doing most of the gang's work and doesn't think they're getting enough they'll be more likely to leave and/or form their own gang.

Gang bases have a weekly rent, if the gang can't pay they get evicted. A party can rent the base and then becomes a "gang" until they can't afford to pay the rent. Keeps thing fresh and competitive.

Each base has a flag, if another gang has your flag you can't get any points until you get it back. Maybe a point bonus for having other gang's flags? Or having their flag lets you open/close the doors in their base without shooting them down? Makes raiding and counter raiding hold some value.

Discounts at NPC stores as your gang gains more notoriety?

It really is worth experimenting and seeing what works and what doesn't. It's not like if you change something and it doesn't work well you can't just reverse the change. There is no reason not to be continually trying to improve these things.