Bogatyr, I've been observing you for some time. I kept thinking, "never mind," but I'll say it now. Before writing tactics or strategies against a human player, it's logical to play against a human player yourself. And not against someone at your level, but against other players, preferably stronger than you. Then there will be more benefit from it. Here you write:

Tactic 3: Gnolls - cannon fodder, distracting and taking the brunt of the enemy attack

But who among reasonable people would target your gnolls? Or, about starting heroes: "Korbach"? Why did Korbach give up? This is like saying the obvious:

everything follows a standard and convenient scheme; it makes sense to use Gorgons, Wyverns, Basilisks, and others to attack one unit at a time and eliminate them from the game.

But who will let you eliminate their main attacking stack right away? If a person isn't an idiot or a bot, they won't send their units to die like that. Or this, from your other posts:

Water magic is the only useful magic for the Swamp.

- Earth magic is useful for all races! Remember that!

In a fast-paced game, especially on medium and small maps, when you can't level up the hero to 20 or higher (more precisely, 23-24, where all the hero's skills become expert), it makes sense for the Swamp to focus on rapid development and a rush, but only not against a good mage hero from the Tower or Dungeon with a set of powerful spells.

Wow, you're really into tempo. 23-24 levels. In all my years of playing, I've only had a hero reach above level 24 a few times. Is that what you call a "fast game"? ))) The only thing you said correctly is:

it depends on the opponent.

That's the key.