So, I've taken an interest in the process behind making the golden skins for the guns in each CoD game that supports them. Took a look at the col (Color) and nml (???) maps for each of the gold guns in CoD4 and looked at a few tutorials. To be honest, I've loved the gold camos in Black Ops the most, since they seem to be the most realistic, with CoD4 being second favorite.
But then I saw the gold camos in MW3, and here's what I think of them, and their production value.
Literally, I'm fairly certain that the gold camos involved nothing more than taking the color maps, filling them with a golden color, and coloring the NML maps white to give a huge amount of reflection.
I wish that a lot more effort had been put into the gold camos for MW3, and not the haphazard job that rivals most custom gold camos that I see on YouTube, where people color the gun yellow and stop there. It just doesn't really feel right to have a gun covered in that much gold and shine. Think some Treyarch people should've stepped in and made the guns have a bit more of an intimidating image, maybe some matte black polymer on certain parts like the handguard or pistol grip maybe. So yeah, think the gold camos could've had a ton more effort put into them. Every other camouflage looks awesome though, it's just an entire gun made of 100% gold is kinda awkward to me.