I have an issue - the screen textures of Uzi and N are missing, and ALL textures of J are similarly missing.
I don't know if I'm just missing things that can be changed if only I knew what I was doing more. J doesn't have any textures, but N and Uzi have only problems with their faces. The faces still have materials (making them shiny looking in the editor), but no textures or UV mapping, the UV map seemingly referencing an image on your computer's Downloads folder. (md-4-factions.png)
I'm not great at Blender, other than basic manipulation of existing models, but there seems to be some stuff missing here.
Plus your images show Uzi's railgun, and that doesn't seem to be in her .blend file. Unless, again, I'm missing stuff.