Does somebody know what software Troika used for creating the models for Arcanum? And if they used bone modelling to fit the clothes & armor & weapons on the models, or they re-modeled them (I think that's pretty unlikely), or they used something completely different?
I think they just did it the old fashioned time consuming way. Have you tried looking at the decompressed art files? Models with a wide range of armour require ~1400 images. They also come in 4 different colours. I remember reading something about how the 4 different colours relate to the art format but I can't quite remember what it was.
