Avé,
Is it possible to replace, say fr example, flavius Julius' head on the imperial campaign setup's descriptions, with say, your own picture. I have noticed that with various all factions modifications, it simply says: ____ leaderpic.tga.
I would imagine it is possible but thgought I should seek help from the experts rather than mess up my game.

Secondly,
If you take a look at your textures folder (the one you created in your models_unit folder), you will see, if you have downloaded TW centre's Spartan Hoplite model, that the tga and dds files are separate. In modifications I have downloaded rcently, I have seen them in one file, all together. Does this affect gameplay?

On this subject, must you use the Gmax editor and Vercingetorix's tools to modify skins?