Once, I answered in the Modding topic, but I'll answer again:
archangel>smd>3d max 2017>fbx>autodesk maya 2009>ma>alias maya 6.0.1.
Is 2017 mandatory?!
Added 3 minutes later
I can write a detailed instruction if needed, taking into account all possible pitfalls.
It's very much needed! By the way, if there is a model with a set of animations, and it was originally saved by a respected comrade in the Autodesk FBX format, is there a way to export it in the Alias Maya format, in order to then export it in the format required for the game?!

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Неудачное планирование ведёт к неудаче ...
NCF - мод, добавляющий дополнительных существ в HeroesV 3.1