I used 1.5 mm layer height and a 0.4 mm nozzle for everything except for pistons, which I used 0.5 mm layer height and 0.2 mm nozzle.
The author remixed this model.
I got inspired by franklima260's tail extension, and I printed it off from my FDM printer. When I printed it, the cuts I made were pretty crappy, so I made a shell to cover it. I also made a servo turret for another gun at the bottom of the shell, and more missile silos for extra weapons.