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

and what should be done with it?

Added 33 minutes later
I liked the idea of having a bestiary where the abilities of all creatures are listed, like in The Witcher.

This is for modders; you can find a skeleton from Heroes of Might and Magic VII in Hannik's VK group and apply a texture to it. Otherwise, I don't want to explain what to do; as it says on the model dump, "those who are worthy will figure it out themselves!"

A bestiary for convenience – I myself don't always remember what abilities creatures have, and it's generally difficult for players to figure out new units.