If possible, how would I figure out what materials went on a certain model?
Open the file in hlmv. Near the bottom, open the “model” tab. Look at the “VMTs Loaded” box. If the materials loaded correctly, there they are.
How do I open models that aren’t in the standard game in the hlmv?
The fastest way is with mdltexture.
Lists the model paths the mdl uses.
http://nemesis.thewavelength.net/index.php?p=45 I use that tool, install it and open a mdl with it then go on help->console and it lists all the materials in the model and the material paths it’s looking in.
Alternatively you can open the model in a Hex Editor and the material path(s) is at the bottom and the materials are listed above.