I looked but didn't find a discussion covering this, but I'm sure there is one somewhere and I didn't look through enough pages.
I would like to see an AI setting. An example would be allowing me to set them to my play-style so they better fit with me when I playing solo. Lets say I want to go in guns blazing and hot and start lighting people up, I would set the AI to lets say "AGGRESSIVE" and they in turn would be more apt to look for a fight and take the action to the cartel as I am.
Lets say I want to play stealth, I would set them to lets say "PASSIVE" where they aren't looking to go into a fight and are more reserved and sneak around more than run around.
There should probably be a middle of the road setting as well, something like "REACTIVE" and when a fight in in progress they enter quickly and start fighting along side you.
I would also like to see the ability to tell all of them where to go individually. It could unlock as you unlock sync shot. You could place them with the "go to" button on the wheel, but instead of all 3 of them going there, label them 1, 2 and 3. This would allow you to surround a camp and shoot from all sides. Having all 3 of them go to the same place is not as good of teamwork as there could be. Since you can sync shots, it should be an easy addition to sync placement and be able to spread your AI teammates out.