In your library, highlight the game, press (Y) , and navigate to "Title Updates." Download and Enable the latest update (e.g., TU 11 for Black Ops 1).
This is a popular homebrew tool used to scan your drive for DLC and XBLA games and "Unlock" them with a single click if they show as locked (blue padlock icon). Call of Duty Black Ops [Jtag/RGH DLC]
Getting DLC to work on a for the Call of Duty: Black Ops series requires specific folder structures and, often, a few extra steps to "unlock" the content so the console recognizes it as licensed. 1. Basic DLC Installation Path In your library, highlight the game, press (Y)