Insert the disc. The "Call of Duty" (HQ) launcher will automatically download if not already present. Once installed, launch the HQ, go to the "All Games" tab, and select Modern Warfare III to trigger the specific content download. Xbox Series X Go to product viewer dialog for this item.
Go to the Game Library under "Your Collection," select the game, and press Download . Disc: cod-mw3-installment-tutorials
Note: Total installation size can reach over 200GB depending on the content packs selected. Insert the disc