Talking about americas army game? If its the first god bless you if its aa3 you should regret it and be ashamed of yourself. Such a waste of hdd space.
Here's a pdf taht explain in english some of the shader's trick https://www.dropbox.com/s/65cwf6kjuezhwdl/GuilltyGearXrd_shader.pdf?dl=0. MP me for .blend file with the model ;)
The nearest neighbor parts of that texture are interesting. Do you think they did a low-res texture first to check for bleed or something? Or is that some custom compression format?
@EarthQuake Joe, is it currently possible in TB to display stuff blending normals from multiple UV channels? Mixing trimsheets with unique bakes, like Senechal's stuff.