Inhales ... Ok, I'll make it clear for you as non programmer. I had such Idea a year ago when I was developing Oxygen, a framework for development of coop missions for FAF. But even now I see it as barely possible to be final product, and that's why:
- Map generations is ok, we have it and this is not a problem.
- Nav mesh developed by @Jip opens us lot's of opportunities for setting up routes for units, but some coding and checks required.
- Bases. This is gonna be a problem. To achieve aesthetics of all faction base setup we'd need very complicated generator that also involves terrain and water. "Use prebuilt ones!" Still required checking for valid terrain and water. And... after 10ish missions you are gonna be bored I swear you.
- Objectives. Protect citizens! Protect the convoy! Attack and destroy that base! Build smd before the launch! Hold before timer expires! What's the point? Are you gonna do all these steps before just for that? It is already kind of possible with mod by @Rama iirc. If you want more complex objectives then oh sorry, even starfield having millions of dollars is lacking side mission variety :Kappa:.
- Who is gonna do all of the steps?
In conclusion, too many effort for too little result.