Nutty
Deity
I imagine you don't need the rocket artillery unit for your mod; couldn't you just add the 2 dds files into VFS with the original names?
If you want to use new filenames and preserve the existing unit, then there's no need to convert to fbx. You just need to resave the gr2 with a different name after changing the textures to the new files (in which case, yes, it's required). Similarly with the .fxsxml.
If you want to use new filenames and preserve the existing unit, then there's no need to convert to fbx. You just need to resave the gr2 with a different name after changing the textures to the new files (in which case, yes, it's required). Similarly with the .fxsxml.