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

look, I might be a bit annoying))) but I'm a complete beginner in modding Heroes 5, so I have to clarify – if I understand correctly, the animation file in Heroes is just a skeleton with movements, meaning the animation file doesn't need a model, right?

Added after 59 minutes
and can you send me the exported animation files? If I understand correctly, the export was done, but when viewed in the editor, the model glitches in most of the animations?