An RTS where you could only swap between FPV views of each of your units would be fun. Or at least different. Savage II but there is only 1 player per team, and no overhead view. And you can wrench control from a bot at any time.
Sacrifice is a brilliant RTS where the commander (a summoner mage of sorts) participates at the ground level.
It was the dream but any game that tried was always disappointing.
Battlezone and battlezone 2 [0] were great for this. Many hours lost, even if bz2 was a buggy mess on release. It was also one of the first faves to really have a missing community.
[0] https://en.wikipedia.org/wiki/Battlezone_(1998_video_game)