[Wicher]

I've recently read some deliberations on that here:

https://acoup.blog/category/collections/total-generalship/

Many pre-modern armies couldn't really be commanded around the battlefield much or at all, and indeed if they could (to limited extent, eg the Roman armies) then there'd be severe limits on command propagation (horseback rider reaching a centurion who then needs to get some trumpets sounded, but there's only so many trumpet sounds you can make and train troops for), plus the general (and everyone else) have an extremely limited view of what's going on to start with. The author states that it wouldn't be a very enjoyable game if all such dynamics would be simulated.

But I myself would like to see some studio take a stab at something like you suggest, and see what comes out!