[PrinceofLowLight]

I really don't like the idea of increasing uniy costs for more-built units. Instead of creating an artificial handicap for units, just make under-used things more effective. There are plenty of suggestions in the thread to make Light Infantry and Cavalry more useful.

I have to echo the request for disbanding troops.

Either make unit AI better or increase scripting options. The desire for more control stems from silly things like your archers wiping out the back ranks of your army one too many times. Maybe certain commanders could unlock better strategies for units?

Multiple fort designs is a good idea too.