Mod requests (orders).

Hello, dear fans of Heroes 5. We often play long games with friends, level up, and then fight. I know it's strange, but we enjoy it. I'm interested in a mod for diplomacy. I've searched online, but I haven't found anything. I want to increase the chance of joining units specifically from the castle faction you are playing as. It's really unpleasant when you're playing with diplomacy, and units from evil factions readily join you, while when you're good, the opposite happens, and your units send them away. Perhaps this can be implemented through the Leadership Crown or through the diplomacy perk itself. Since the games are long, Inferno, Dark Elves, and Mages take a backseat. Are there any mods that strengthen these factions in a long game? A good solution exists in 5.5 where choosing a hero class gives more attack and damage to the hero as they level up. But overall, we didn't like that mod, although it's interesting. By a long game, I mean level 25+ and a completely cleared map. Thank you.