If XM360 fails, you can use this PC-based tool to unlock the files before transferring them to your Xbox. 3. Essential: Title Updates (TU)
If the DLC doesn't show up in Aurora or Freestyle Dash, go to Settings > Content Settings > Manage Game Paths and ensure your depth is set high enough (usually 3 or 4) to find the deep subfolders. Call of Duty Black Ops [Jtag/RGH DLC]
This version is notoriously difficult on RGH consoles. It often requires specific "Compatibility Packs" found in the 00000002 folder to reach the main menu. Jtag/RGH Tutorials #5 Installing DLC If XM360 fails, you can use this PC-based