Valerichek
Auto-translated
Here's the capture of the green outpost, and also the destruction of 2000 black dragons blocking the third path.
I watched the video of the victory over Haven – it's impressive! But it's too straightforward; I call it "cracking a nut with a hammer."
Most likely, all available creatures (from captured castles, generators, and those obtained for completing quests) were transformed into undead.