-"Wake me when you need me"-
Master Chief to Cortana
My guess is it will either be released in an update around halo 4's release, is hidden in the coding under a different name and folder as a disguise and is unlockable with methods such as killing all bobs at all spawn locations on every map in reach, meleeing all GRD dolls (some could be hidden still) possibly in a certain order, entering a code on the waypoint terminal system, maybe something to do with the capitolized letters and secret messages in the data pads, OR could just be a 343i exclusive that will be released much much later (depending on how popular Reach and CEA stay over the years and 343i's participation in it)like Bungie's eternal flame armor effect. What we need is more hackers to help the cause and more loyal halo fans to keep on searching for information and possible methods for unlocking said helmet. Wow that was longer than I thought it would be!