I found this model of a spaceship on Turbosquid. It works in HitFilm, although I did have to checkmark "Unify Normals" and set it to "Generate Faceted + Auto Smoothing" to get rid of some of the blocky cut out pieces. I don't know what any of that means, so if someone could explain I'd appreciate it.
My main question is this: the model itself is untextured. I know nothing about UV wrapping/texturing models, so I'm wondering what the best approach for this would be? I threw on a simple grunge texture as the Diffuse in HitFilm, but I know that's definitely not the proper way to do things.