Find the game in or the Store and select Install .
Once installed, use the in the top right menu to optimize your experience. Call of Duty: Modern Warfare III Installation and Setup call-of-duty-modern-warfare-3-setup
Select . You can choose to install only specific packs (Campaign, Multiplayer, or Zombies) to save space. PlayStation (PS4/PS5) : Navigate to the Library and select the game tile. Find the game in or the Store and select Install
Launch your preferred app and search for "Modern Warfare III". call-of-duty-modern-warfare-3-setup