@SkateZilla, with the Opacity/14 channel, how does the renderer handle that? Does the model need to be flagged as allowing that to be used on a part before it will actually render things transparent?
A few of us on the DCS: Livery Art Group Discord have experimented with trying to use alpha channels to hide the extra antenna bumps on the C model Hornet to more closely represent an F/A-18A or A+ but without luck.
Tried adding a .lua entry for channel OPACITY in slot 1. Cut those areas out in both the diffuse and roughmet textures but it renders black rather than transparent. I was hoping it would render the bump transparent so we could see the base fuselage part underneath since the bump is a separate part of the model with its own part of the texture.