In Steam, right-click MCC -> Properties -> DLC -> Check "Halo 4".
: Halo 4 is included with PC Game Pass or available for individual purchase. Halo 4 Download PC Game
In-game, go to -> Gameplay -> Change Installed Games . In Steam, right-click MCC -> Properties -> DLC
You can purchase and download Halo 4 through several digital storefronts. It is available as a standalone purchase or as part of the full Master Chief Collection . Halo 4 Download PC Game
: You can find the standalone version on the Halo 4 Steam page or buy the complete Master Chief Collection [19].
: The story spans 8 main missions (Dawn, Requiem, Forerunner, Infinity, Reclaimer, Shutdown, Composer, and Midnight) [9].
: If you own the full collection, you may need to manually select Halo 4 for download: