Stronghold – “The Barbarian Seven” [Campaign 6, Mission 3]

I'll ask the same question: "Mother Earth" or "Father Sky" in the hero's attributes? I understand that someone has completed this mission after all. How? )))))

You need two heroes with strong armies - one searches for veterans and conquers forts + searches for veterans
the second stays in the city where you need to build both teleports, and periodically teleporting to the fort where the enemy hero has approached, eliminates the armies of the nagas.