Update: Xbox One players who pre-ordered Call of Duty: Modern Warfare 2 Campaign Remastered can now equip their UDT Classic Ghost Bundle items available in Call of Duty: Modern Warfare and Call of Duty: Warzone. Be sure the game is updated with the latest patch to get access to your bundle items.
Still don't see the bundle items? Try restarting your console or clearing your cache. Learn how to clear your cache on Xbox One.