RTF is a global modification that replaces all towns in the game.

Hello, is it possible to create a mod for an Alternative Undead faction, where the Academy Castle is redesigned into a dark alternative? The heroes would be Death Knights.
Creature upgrades:
1. Ghoul - Warg - Vampire
2. Skeleton - Corpse - Death Whisper (Spiders, I noticed that there are no spiders in the game, although Giant Spiders exist in Fantasy)
3. Gargoyle - Amethyst Gargoyle - Lapis Lazuli Gargoyle
4. Witch - Sorceress - Banshee
5. Initiate - Necromancer - Dark Magister
6. Butcher - Ogre - Fat Ogre
7. Bone Dragon - Ice Dragon - Ice Serpent.

Is it possible to bring this mod to life?