Is this a big faction or a small faction? Are its members unique actors? If it is not too large, you could perhaps create a quest with a bunch of optional reference aliases set to be filled by actors in the faction, stop and start the quest, then interate through those aliases and count how many are filled, updating a global with that number.
My idea was to increase the amount of member my hunting faction has, based on the number of outposts/locations it has. I was going to use the condition of how many members are in a faction for that.
So say there are 2 outposts, and I put a limit of 5 members for the guild, the player can only recruit members to the max of 5. Then when they build a third outpost, they can recruit a couple more.
The plan was to have it in dialogue also. So members <= 5, no option to recruit. If you get me
