I want to make a video showing how to import models from www.mixamo.com into Heroes 5. I've tested it, and it works. Currently, I'm working on figuring out the simplest and most effective method.

What this will give us:
It will provide a working process for adding new heroes and creatures with individual meshes and animations – in the example, I'll add 51 animations.
By modifying the skeleton and mesh and running it through Mixamo, we can increase or decrease the size of creatures without manually creating animations for them.
We'll understand how to add animations of creatures from other games into the game.

I think this will provide a way to create a pretty good mod.