Well ideally there would be no human to control such an ai but one that acts as a benevolent or even God-like force influencing behind the scenes but never truly seen. And why is this my opinion? It is my opinion because I want humanity to succeed and I want a better future for all of us, however, I do NOT believe humans are capable of a better future. I think humanity is capable to achieve this ourselves but only as a collective species not as individuals (read nations or alliances as well as individual people). I never see such a reality coming true on it's own; asides from some existential threat that connects us all, but even then, there are plenty of those already such as: nuclear weapons, climate change and the list goes on. And we are still not rallied in common cause to fix these issues and move to the next step. That is why I see us, all of us, requiring ai to solve these issues for us, whether overtly like: destroying the opposing team (destroying entire nations or groups) and moving on without them or something more covert like an ai subtely influencing the world for the better through media manipulation, economic, etc. For now ai does exist as far as we know, so pretty much all I wrote is just my BS opinion, unless it's already in the works covertly and none of us being the wiser.