This is a leveling system for all units which I worked on about 1-1.5 years ago.
This is a special melee map that allows your normal units to level in addition to heroes. This is same as ordinary melee map, but here you can train your army, as they get more fighting experience, they get stronger and better when they survive longer...
Having an army of experienced and strong units is better than just an army with fresh recruits. In this map, in addition to normal melee, your units in addition to your hero is very essential for your strategy. Keeping your high level units alive , is very difficult, but you will be highly rewarded for that.
Footmen, can be promoted to captains, when they are promoted, they can level.
This is just a altered melee map. This is the first map I ever submitted here...