I kinda disagree with all of this. Big abilities that come with in-universe complications are the bread and butter of RPGs. E.G. Connection: Mafia: You know a guy in the mafia you can ask for help, but he might want a favor later…

Or think of things like Wish, etc.

It kinda sounds like you want a wargame with a bit of story connecting the battles. Which is fine, but then just play a wargame I guess?