I've been following this guide https://drive.google.com/drive/folders/0B_RXrYUHtKK_bjlieXhxbkZLajA and have everything working for my units except the textures. All the guides I could find explain the process using photoshop and an extension called Super PNG, which I don't have access to. Anyways, when I run the mask.png etc files through my papatran batch file, I get an error stating "--texture-mode incompatable with image input file 1 error" and thus that is where I'm at right now. From what I gather my images are relatively correct, its likely that the exporting is off. If someone has used Gimp in the past to create mask/diffuse/material stuff, I'd love to learn the details.