Go to your console’s home screen, hover over Modern Warfare and press the Options button. Select Manage game and add-ons from the drop-down menu. In the next menu, click on Call of Duty: Modern Warfare. A list of different game packs opens, click on the Modern Warfare – Multiplayer & Special Ops pack checkbox to select it.
For Xbox: Press the Xbox button on the controller to open the Guide menu. Select My games & apps > Hit See all > Choose Games. Choose the Ready to install tab. Select Queue > Choose the Modern Warfare 3 game. Now, press the Menu button on your controller. Select Manage game & add-ons or Manage app.
- In-game XRK Weapons Pack - In-game Tactical Knife Experience a visceral Campaign or assemble your team in the ultimate online playground with multiple Special Ops challenges and a mix of Multiplayer maps and modes. You also get access to Warzone™, the free-to-play experience from Modern Warfare®.