Mira's Warface SAI GRY and all of its dependencies are REQUIRED. Duh.
Literally all this does is correct the body model on Mira's Warface SAI GRY so that the pattern UVs are within acceptable boundaries. If you're just somebody who uses the mod, you're not going to notice anything as a result of this change. Literally the only reason this exists is so that I don't have to worry about priority order messing with add-on functionality when I release the df_cc textures and thus weapon skins I've rigged together for this gun.
I would just send the .model this adds over to Mira and ask her to press an update containing it, but I didn't want to be too much of a bother because she's honestly pretty chill.