I know that most of the rts community is interested in cooperative games. In Empire Earth 2 you can tribute units, I would like a mod that allows you to tribute units except villagers, and if you like it, it may be added to the standard game
The resource tax already has a 30% tax so perhaps that cannot be abused, it would have to be tested
Or the tribute could be decimated for every 10 units delivered 1 is eliminated or something like that
Or the tribute of units has a tax according to the number of units delivered