Man, I could see the next Total Annihilation / Supreme Commander-like game where rough orders/instructions are given to commanders and they carry out those commands.

The scale of those games was already nuts, but that would 10x things.

BAR (https://www.beyondallreason.info/) is an open source TA clone that proposes massive scale and that is totally open. After the recent disappointment over a series of failures to bring a new big RTS game in the last 2 years, the RTS community talks a lot about this one.

The mechanics are old school, as with basically all RTS, but the openness allows for far more experiments than one would assume in a proprietary game.

I'm reminded of an obscure Gamecube game called Odama (https://en.wikipedia.org/wiki/Odama) which was kind of a bizarre blend between pinball + RTS, where you commanded feudal Japanese troops using the Gamecube Microphone. Of course, this was 2006, so it only accepted a short list of vocal commands like "Company halt!" and "Charge!"