Guide on adding a new model, animation, and creature to HoMMV

I tried to describe a method that is as simple as possible for beginners and as optimized as possible (in terms of avoiding unnecessary actions, such as creating a new bone type for each animation, separately in Maya). If there are any reasonable corrections, I will be happy to consider them. I would also be glad if you could explain in simple terms how you export the model without a 90-degree tilt. I might figure it out myself, but right now, all my free time is consumed by this ridiculous guide. I hope it will be useful to someone. I have divided the sections under spoilers. This makes the text look less bulky and intimidating.