Can you export the wireframe UV maps also pls? I will try to touch-up the original textures and the wireframes will help

Do you mean the wireframe for the textures so you can use them as guides for new textures? Totally, I'm gonna need help in that department so the UV wire frame is gonna be a must have. 

Heyya @Anarch16sync and @Kva3imoda this is related to tattoos - I have a question about non-symmetrical features like scars

I am missing the part where you tell the mesh which part of the UV map to pick up for the scar feature.  Can I just edit the .MESH.XML file, or do I need to do something in Blender (Nooooooooooooooooooooooo!)

For something assimetrical you are going to need to use blender or 3ds max. The outlander eye scar is actually an extra plane over the eye, that is pointed to one tiny spot in the texture map. I tried to recreated it and make something like a scar over the chest, but couldn't get it to work like I wanted, move on to the tattoes. Maybe I should revisit that idea and make it work later.

Transferring UV images from one model to another based on different UV layouts.  As long as the models are somewhat close.

Yeah, this looks promising. Thanks Vkoslak.