Our first tip here is do not simply press 'install all' when you find the Call of Duty Hub on Xbox. Instead, make sure you hit 'manage game' and only select what you want to try out. You'll always need the big chunk of data called 'base game', but the rest of it totally depends on what you're wanting to play.
Here's how you'd install MW3 Multiplayer, for example:
- Search 'Call of Duty' on your Xbox console
- Select the app titled 'Call of Duty' (which currently has Black Ops 6 artwork)
- Hit 'Manage Game'
- Tick the install boxes next to: Base Game, MWIII Multiplayer, and all of the small MW3 'Content Packs'
- Once installed, you'll be able to boot 'Call of Duty' and play MW3 multiplayer.
In this 'manage game' area you'll also see 'MWIII Campaign' and 'MWIII Warzone/Zombies' packs, so if those are what you want to play, you'll have to install those packs instead/as well as the Multiplayer pack. Got it? Okay, phew.
If you're wondering why there are also Modern Warfare 2 packs in your 'manage game' area, that's because 2022's Call of Duty game is also housed within this app - for now at least. Those packs are available to install, but you won't be able to play them unless you own MW2 or it comes to Xbox Game Pass in future.
We're seeing reports that players are simply hitting the install button on the Call of Duty app - therefore downloading everything available for MW2, MW3 and Warzone. Remember, if you're simply wanting to try MW3 on Game Pass, make sure you hit 'manage game' and only pick the MW3 packs you need to install!