[quote=@CaptainSully]
One person designated as “general” for each side with everyone acting as infantry etc. The non-generals receive instructions that they have to follow. For the general it’d look like a tabletop game while the troops would experience it like an FPS.
[/quote]

There's a game exactly like this that I've forgotten the name of. Most players are in a third person perspective, spawning in as whatever classes are available and trying to assault the other team's base, while one player in playing an RTS, building the base, gathering resources and researching upgrades and new classes for the others.