Old Woes

Hey there everyone. I’ve been a long time player of reach. Pre-ordered it way back when and I’ve been itching to give it a whirl on the Xbox One.
One thing being is that I still have all my old DLC, Anniversary, Defiant, Noble. One thing, however, that doesn’t show up is that old Recon pre-order Helmet. I know redeemed codes and DLC are always tied to an account once activated, used, etc. However, after going through quite a few hoops and a few pages here, there doesn’t seem to be some solid way to get myself back that Helmet. Went through the online store and all the pre-order bonuses were there, however, it always read “item is unavailable”. Also tried reinstalling Reach itself but still only come so up with the game and the main map DLC’s.
Hopefully im not beating a dead horse here by asking but, would it be better to maybe call a support line, or anything? I’m willing to just let bygones be bygones and play the game for what’s it is. But just an honest question.

Thanks to anyone for any help or answers given. I appreciate it greatly to you all.

I made a post/thread that is stuck to the forum about how to unlock the Waypoint Armors that includes the Pre-Order stuff and what not. That might have some information that could help. The only thing I have seen about that is you can only get those armors/pre-order stuff on Xbox One is if you have activated them/gotten them on your Xbox 360 version of the game. Then you have to look in the Xbox Store on Xbox One for Reach and look under the extra content or what have you and simply download the extra content like armors and such. That is how I managed to get my UA Recon (3) helmet and Elite Officer Armor on my account on Xbox One.