Or, suppose you are the footslogger, the legionaire, who must obey orders (a pre-defined battleplan). Imagine taking the place of Centurion, leading your century into the melee... The possibilities are endless, and here I'm just taking about Roman military.
I had that idea too.

It would be great be a General, like Hannibal Barca, giving orders in Lake Transimene.Imagine it!