How many men do you think a unit represents?
I know there's no actual answer to this, and it could vary wildly based on unit and time period.
Still, curious what you guys think in your head when you're playing. If you give it any thought at all that is lol.
Based on the roles your units play, taking and holding land, taking cities, ect, I'd say they probably represent a Division, at least in the modern age.