I've tried 3D Ripper and Ninja ripper, I've tried the official blender plug ins the devs made...
At the end of the day, Blender refuses to import main.nmf (which contains the detailed model), only randomly spitting out parts of the model. For the ZIL-130, it's the rear wheels. For others, it's the hull (sans wheels).
But the LOD (I assume it's shittier, less detailed version for when it's far for the camera, so as to avoid TEETH version loads and it works with the textures (I had to fill in the windows).
No cargo bed but I can I work with it.


