My Call Of Duty Ghost camo is gone

If you preordered Call of Duty Ghosts and redeemed your Ghosts camo, the calling card and the reticles were made available with the last patch. If you do not have the Ghosts camo, only way to obtain one at this point is to be on the lookout for people on
Youtube and Twitter giving those away.

I can still use the maps from the DLC but not to two wepeans or the ghost mask or gun camo for call of duty ghost

It's also still listed with the bundle pack for xbox one and Call of duty ghosts shown here:

www.xbox.com/.../home

And it's also on the cached version on the Microsoft store shown here:
webcache.googleusercontent.com/search

and the charlie intel picture of the advertisement on xbox 360:www.charlieintel.com/.../preorder-ghosts-from-microsoft-store-and-get-in-game-camo

I just checked the web. You are right - preorder at microsoft store seems to include "exclusive weapon camo, reticle and player patch" and free fall map (source examiner:

www.examiner.com/.../last-minute-call-of-duty-ghosts-pre-order-round-up )

Microsoft made the offer not activision - so you must try to clarify it with microsoft in my opinion.

The code comes from the Microsoft store. I received my code a few days ago. I redeemed it online, but the content never showed up in the game. I contacted microsoft store and they said to contact xbox.

If and when you receive your code, I would suggest redeeming it in-game. Following the instructions that xame with the email didn't work for me.