This is a plugin that allows you to import GldSrc .mdl model files into godot.
Simply enable the plugin and drag and drop the .mdl files into your project directory.
Note that some model files have external dependencies such as textures that are stored in a different .mdl file these must be present in your project directory first before import.
For example suit.mdl has textures stored in suitt.mdl and scientist.mdl has various data stored accross scientistt.mdl, scientist01.mdl, scientist02.mdl, etc...