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Thank you very much, I was actually looking for this mod, but all the links to it have expired, no matter where I click.
As for the balance, I can say that I mainly play for fun and entertainment, and I don't pay much attention to it. For example, if I set up a game against two enemies, it would be fair to choose a stronger hero. This mod is perfect for such artificially created situations.
P.S.
I didn't quite understand the part about the maps... It seems that it already works on all maps, and I don't even use the map generator.