Helldiver, i already answered your question on the previous page. The answer is yes if you tweak the mdl file with the Mdlc program. Its the same process in both FS and CFS2. No where in this thread did we say you couldn't put shine on, i said you have to use a the Mdlc program to do so.
FYI, all the shine and reflectivity you see in Fs world is accomplished first by adding alpha channel directly to the mdl files during design. Next, alpha textures are added to skin the model and the texture alpha simply "activates" or enhances the alpha shine and reflection already in the mdl. If there's no shine or reflection in the mdl, the alpha textures won't help. This whole subject begins and ends with the mdl, not the texturing. And again, with the right tools, the mdl can be tweaked for shine even AFTER its finished.