I didn't do it, I just replaced the textures in order to remove the extra icons that the author made on the skin, and remove the beard, found on a foreign site. Replacing wmydrug . Good game!
Made Trevor from GTA5, did for GTA5 DYOM missions. I wouldn't say it looks like it, but it's better than nothing. Replaces anyone. P.S my first work with skins. =)