HaloMods "Classic" Read-only Archive

Ok, to start off, i already know what a uv map is,how to model in 3ds and how to inject the model. But in the tut by trep he says to then inject the bitmap which im thinking is the uv map, and relink um to the model. But when ever i export my model to .obj i dont get and uv map. How do i get this uv map, and if my model is big and has many parts, will it use more then one, and if so, do i just inject all of those and link um?

edit****and one more thing, if you make a model have less transparentcy in 3ds, does it come out the same in halo 2?