From the home screen, go to your Game Library and select Your Collection .
Select Download . If prompted, or if you are already in the COD launcher, navigate to the Settings or Manage Files menu. Download Call of Duty Modern Warfare 2 Campaign...
Locate and select Call of Duty: Modern Warfare II . From the home screen, go to your Game
Ensure Campaign Pack 1 and Campaign Pack 2 are checked. You can uncheck Warzone or Multiplayer to save space. From the home screen
Complete the download and wait for both packs to finish before launching the campaign. Xbox Series X|S & Xbox One Modern Warfare 2 Campaign On Xbox Game Pass