Modding

The red text indicates that the material is missing textures; this is a minor issue. I can try exporting it myself and recording a video showing the steps I took. If successful, I'll show the result. However, I might not have time because I'm leaving home and won't have access to a computer for a month or so.

The error is in lines 5 and 6, below the materials.
I extracted the skeleton like this: archangel > smd > 3d max > fbx > Autodesk Maya 2017 > ma > Alias Maya 6.0.1. The ma scene needs to be "downgraded" so that Alias Maya can read it, and the dimensions in Maya will be off, but this is a minor issue that can be easily fixed: where Scale X, Z, and Y are set to 2.54, set the parameters to 1, and that's it. When importing the smd into 3d max, the X, Z, and Y coordinates are off; I first rotated it 90 degrees and then set the coordinates to 0.
I was able to solve the problem with the alpha channel for your unit; the standard settings are strange, and there shouldn't be any transparency, or I'm missing something.