Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download SciFi Spaceships Fleet Free.
SciFi Spaceships Fleet v3
2013 Models, No PBR materials ready. Set of two Spaceships “Cruiser and Escort” (two FBX models), those models comes with two diffuse maps each ones, so you can create two different space fleet. (see previews)
Ready to be implemented into your upcoming game! Perfect for iOS, Android. Low-res models.
Included the Photoshop files in layers, you can customize colors, add your own logos etc. Normal map, Lights/Emissive map are also included. Images format: jpeg. Included: diffuse, bump, lights and Normal maps.