Could it be possible to fix the issues the Tavion, mercenary and saboteur models have? Some of their textures are transparent depending on whether you look at them at the front or the back.
I guess he's referring to Tavion's feathers and the merc and saboteur lower jacket. The only fix to me seems to be a "cull disable" or "cull twosided" in the shader code for those specific textures.
Rare
