There's a lot you can do with visors! If this is a one of project, I've always loved matching the secondary color to the visor. Gold is also never a bad choice. The Halo 3:ODST color shade is like a darker blue/black, while Reach I still haven't quite figured out. But keep in mind, if this is for a full suit you plan to deploy and get your SWEET TRADING CARD, you will also want to make sure the visor color you choose is a Canon variant! That means the latter options I mentioned would work. (But remember you only need that for the deployment photos
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