@FreneticPonies Yeah I considered doing it on the top because it makes sense, but on the reference of the one used in the films it did not have it. I might add it myself.
Don't have the time to read the whole thread at the moment, but I did add link and a warning to the wiki here FWIW. http://wiki.polycount.com/CategoryGameIndustry#Education
Did a decent amount of material work in substance designer and painter. Base is there and may add some refinement in color and remove a bit of the noise from the metal.
Value experiment, began with black canvas and did brightest highlights, working my way down, then trying to add texture and then re-worked the light again...