Still talking about the illuminated windows, I have seen that you have set their material as 'emissive', similar to what Anvar made with GWX neutral ships.
This is indeed an effective and easy way to make an object to look luminous in game, but such a lights are always "on".
If you are looking for a more polished method to make ship lights to shine only at night, you can experiment with the CityLights controller. I have been looking into game files for its usage, and I think I have understood the way it works and how to set up objects/materials for it. If you are interested, I can explain here
