As I though the lighting went pretty quick, I basically just retouched a stock HDR image making it a bit more blue and then added a soft area light from above and one from below and I think the result is quite pleasing, and I will always be able to fix stuff in comp later on since I will be rending out several passes to build my beauty.
I’m currently shading the models and I plan on being to with that tonight. The Ka-60 will have a quite matte metal finish and I think a semitransparent blinn shader with a dirt map will be sufficient for the windows. The Mi-28 will be slightly more reflective and therefore have higher Reflectivity and BRDF: 0 Degree Reflection values. The windows have a mia_material_x_passes with a tweaked GlassThin preset and dirt map on it.