@Ghostelar For example if I want to add that "ahegao" I need learn how to use a 3D program after that I have to extract the 3d models of the guns from the game and use a texturing/painting program like ZBrush or Substance Painter to re-color the diffuse textures or add new diffuse textures and don't get me started on specular and normal textures then open Photoshop merge the 10-20+ files into 1 layer of each texture type etc etc. It's a long and stupid process and I can't be bothered really.
I'm happy with the default textures anyway I just wanted to add a little something to it. I made this personally for myself, all I'm doing is sharing it with others but other than that, thank you