More than 1 skin with a model.

Is this possible? I heard that I might be able to overwrite the some useless creep with the model I wanted to make copies of, would this work, and how could I do it?

yes it is possible, what you have to do is download the mdx to mdl file converter, extract the model you want 2 skins on from the mpq file using winmpq then convert the mdx file to an mdl open it in word then change the texture paths to a different name for example if you wanted 2 skins on the arthas model you could change the blp from textures\arthas.blp to textures\arthas1.blp then just import the files in to your map with the new texture paths, there should be a proper tutorial on this search the forums

Just to clarify what ismokeweed said, make a copy of the model, say Arthas.mdx and Arthas1.mdx, convert Arthas1.mdx to .mdl using some convertion tool. (check the download section if you don't have one already) And find the pointer to the skin, which would be Textures\Arthas.blp, rename that to Arthas1.blp. Now convert back to mdx.

Now when you save another arthas skin, just name it Arthas1.blp.

Ahhh... thank you. (I am making a Civ map and need upgrades for my guys, thus the different skins...)