I'm making a mod to replace creatures and their upgrades with new ones. Models and textures from different mods will be used, but the creatures' stats will be changed. I will also have to work on the upgrades, as many mods don't have them.
The mod will be modular, meaning you can choose which creatures to keep and which to remove. Perhaps, based on the NCF core, it will be possible to obtain these creatures using a fort on a hill, rather than in a castle (similar to the third-tier upgrade in NCF).

Thank you Uriel Septim X for the ideas and support.
Special thanks to zahar0z for giving me the green light to use his work and for the helpful advice.

Currently, I have the following ideas:

Haven:
no changes yet

Inferno:
Ifrits - Ifrit Sultans - Ifrit Viziers (instead of Cave Demons)
Destroyers - Devastators - ??? (instead of Devils)

Necropolis:
Ghouls - Insatiable Ghouls - ??? (instead of Zombies)
Spiders - Black Spiders(?) - Death Spiders(?) (instead of Vampires)
Black Knights - Death Knights - Dark Knights(?) (instead of Undead)

Sylvan:
Dendroids - Dendroid Guardians - Dendroid Soldiers (instead of Ents or Green Dragons)

Dungeon:
Chakram Dancers - ??? - ??? (instead of Beasts)
Cave Manticores - ??? - ??? (instead of Hydras)
Faceless Ones - ??? - ??? (instead of Twilight Witches)

Academy:
Shantiir Golems - ??? - ??? (instead of Iron Golems)

Fortress:
Valkyries - ??? - ??? (instead of Berserkers)

Stronghold
Wolf Riders - ??? - ??? (instead of Orcish Warriors)
Cutters - ??? - ??? (instead of Assassins)[/FONT]

Ideas for creatures, their characteristics, and mods from which they can be taken are welcome!!!

Currently, a spider from zahar0z, imported from the game Dark Messiah of Might and Magic, has been implemented: