lol! you're gonna steal my mats, which are vue mats to begin with, anyway? ;) naw, we need more whole mountain variants. that kinda looks like a mud bank with some grass...? then sand and grass higher up. i like it. the only thing you need to worry about with mat files being compatible, is if any of them use images. like if you slap on a woodgrain texture, or use a trans map or bump map you painted in something else. then you need to zip those up with the mat file.