You have the option to delete content you may no longer wish to use in Call of Duty: Modern Warfare/Warzone or to install only the content you wish to play. Follow the instructions below to add or remove Campaign, Multiplayer, Special Ops, or Survival content.

From the Internal storage menu, select All items and Game and Add-ons. Under this, you will see multiple packs such as Modern Warfare  Special Ops Pack, Multiplayer & Special Ops Pack etc. Select every pack that you need (ensure that you have enough storage) and then click on Save Changes.