What would you change in Heroes of Might and Magic IV?

I usually go for two units at a time. But I like to get a rogue right away. Then I'll only get a mage after 7 days. It's better to get a mage right away, of course, but where's the variety then? And the simultaneous attack system actually reduces the variety of tactical options.
Let's count. My squad attacks. They destroy almost everyone (or everyone). The remaining enemies are insignificant, and their counterattack can kill at most one of my units.
Or. My squad attacks... But who attacks whom? The squad destroys almost everyone, but at the same time, it is reduced by half, and 2-3 more such squads of the enemy are approaching.
That's all the tactics. Slow down and throw everything you have. No infantry maneuvers. Otherwise, it will start dying.
On the highest difficulty, you can't do without a mage at all because of the guards in unclear numbers. Thanks for nerfing the barbarians and the nomads, who used to attack effectively. And the harpies, who don't get a response.
Maybe I'm just not very good at playing the 4th game, but in any case, I will defend my point of view. Because I think that this reduces the tactical possibilities of the game, rather than adding to them. The same goes for archers.