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

You still haven't understood my point; it's four). And I'm not really keen on spending another half a week explaining to you how to edit animations or sounds; that's five. Are you so smart? Prove it and figure out this simple problem yourself. Because there's a lot of arrogance, but very few real skills, and I'm already tired of it.

if you know how to fix this, please tell me

There's such a thing as Google, if you need it, and I personally don't owe you anything. Especially considering that, due to your arrogant behavior, you don't exactly inspire sympathy in me. Especially considering how "willingly" you share information.

Added 2 minutes ago

I just pointed out the mistakes that need to be fixed

Yes, but how did you do it?

the polygon smoothing is poorly configured, but that's okay, I guess I'm the only one who spent a lot of time making sure everything was perfect in that regard.

Added 3 minutes ago

regarding auto-smoothing, I've been convinced many times that it's not a great option,

If you don't know how to use auto-smoothing correctly, then yes, it's not a great option. And then it's better to spend "a lot of time" (by the way, how much is that? Half an hour? Or even a whole hour? Wow, so much!) setting it up manually.