A new update heading to Halo: The Master Chief Collection lets you download and install the bits of the game you want.
The Intelligent Install system lets you choose to download the components of the game you want and ditch the rest.
In the case of Xbox One shooter Halo: The Master Chief Collection, you can choose from campaign and multiplayer in each of the bundled games: Halo: Combat Evolved, Halo 2: Anniversary, Halo 3 and Halo 4, as well as the campaign for Halo 3: ODST.
343 Industries' community chief Brian Jarrard shared a work-in-progress image of how this will look in-game on Twitter:
Sal my friend, we have you covered. Here's a little work-in-progress glimpse of how the new MCC Intelligent Delivery feature is coming together: pic.twitter.com/If6DRatnV9— Brian Jarrard (@ske7ch) May 21, 2018
Of note: you can raise and lower the priority of a game when it comes to downloads. You can also see the total installation size and how it'll change depending on your selection.
In a follow-up tweet, Jarrard said Halo: The Master Chief Collection's playlist setup is being changed so it'll operate on a per game, rather than cross-game basis. "If you don't have the correct content to play Halo 3, it'll let you know and prompt you to install it / you won't be able to join matchmaking for Halo 3," he said.
Digital Foundry reported on Microsoft's Intelligent Delivery back in September 2017. The idea is to reduce download times and save hard-drive space. It's pretty cool!