Tactics for the Swamp (Fortress).

Let's discuss, gentlemen!

My opinion: The Swamp faction can only compete with the other factions on the late stages of the game.

Please try to convince me otherwise. Because I lost by 200% :(

I won't try to convince you, I'll just confirm your words.
Choosing the Swamp faction (along with Barbarians and Inferno) when playing against Humans, especially on large, computer-generated maps with 200% difficulty, is SUICIDE.
There are enough drawbacks to this Castle to make you forget about it forever:
1. The Castle is surrounded by swamps (moving quickly in the early stages of the game will be problematic)
2. The lack of a decent ranged unit in the army is also a big disadvantage.
3. Three-level magic (unpromising)
4. Out of the two flying units, only the Wyverns are somewhat decent; the Dragonflies are cannon fodder (combined with the lack of good ranged units and three-level magic), so how to capture enemy cities in the early stages of the game (roughly the first two months) remains a mystery...???
Frankly, it's an unpromising and weak Castle, and you can't compensate for this with cheap units and buildings... there are too many tactical disadvantages:(