
Originally Posted by
Yarrum
The only two methods I can think of where you could 'fake' an upgrade would be as follows:
1: Just give the low tier units the models of the higher tier units as armor upgrades, and perhaps buff their stats slightly
2: Not sure if this is possible, but after the first barracks event, have a regularly firing script that detects gondor militia, etc and asks if you want to spend a certain amount of money to 'retrain' them, deleting the units and replacing them with their professional counterparts.
Good luck