Tactics for the Swamp (Fortress).

Inferno... I don't like it. The troops are too weak. Only the ifrits are decent.

Castle is for true pros. But that doesn't mean it's weak. For example, in this thread, some forum users are vehemently arguing that Fortress is a weak castle and that a player using Fortress on easy and normal difficulty maps can be easily defeated. I disagree. For example, I recently played on an easy map, and the first neutral castle I found was Barbarian. I simply formed an army of dragonflies, wyverns, and thunderbirds, to which pegasi later joined. It's true that I had to use one leadership slot. But I had a great, fast army with significant damage. They put up an elven army with golden dragons against me. The result pleased me. =)
Continuing the topic of Inferno's weakness, I'll tell you this: have you ever heard of thousands of demons on easy and normal difficulty maps?

You won't be able to pull off that trick. Guess why.

Maybe because dragonflies have more speed and move last on the battlefield? :)

I've gone through almost the entire thread about the Swamp.
There are such heated debates here; it really touches your heart. I've repeatedly seen posts arguing that the Swamp's magic isn't great and that the castle is weak against archers, and that in defense, the lizards are taken out first, and the rest are shot down.
On this subject, I want to add my two cents. As has been repeatedly written in the thread, the castle leans towards water magic and is limited to 3 levels of guild building. So, if, theoretically, you level up Gervulf in water magic (or any other hero), and preferably bring the magic to the expert level, then the castle's defense against numerous archer units is significantly simplified. I'm talking about the spell "Forgetfulness," which is somehow not mentioned in this thread.
And in general, it's a very useful spell. With it, having only one dragonfly in a unit, you can break through any (except liches and titans) archer units, even with gnolls, with almost no losses.