Ultimately, the optimal number of combat units in Heroes is what we have now. It would be great if each faction had its own unique design for combat units. :)

I really like this idea! It would definitely be better!
A tent for restoring mana to recruits is also a good idea, but I think it would be more rational to create some kind of artifact for that...

What annoys me is when everyone rushes to the gates. I would build a cauldron with boiling resin above them - let's say it takes one full turn for the resin to boil, and if someone is standing under the gates, it pours down on their head, and it continues until the gates are destroyed :)

Well, you've come up with some great ideas - I was laughing for a whole hour :D! AWESOME!!!
We could easily create an entire faction consisting only of combat units!:D

Okay... everyone has a really amazing imagination! Now I'll be dreaming of cows and carts with manure :D :D :D