Sorry to revive this post!
I'm playing around with the texture files and I THINK that the purpley/pink M files are specular maps. I just cranked the contrast of that texture nodes in these screenshots (just to check what they actually do), so the "shiniest" parts appear white, and this seems about right.
I'm playing around with the texture files and I THINK that the purpley/pink M files are specular maps. I just cranked the contrast of that texture nodes in these screenshots (just to check what they actually do), so the "shiniest" parts appear white, and this seems about right.