On May 30, 2015, the Halo 3: ODST campaign was added as add-on DLC for $4.99. The Campaign system features Mission Playlists, which contain mixes of missions within the same campaign or mixes of missions spanning multiple Campaigns.
Halo: Combat Evolved Anniversary and Halo 2: Anniversary supports a maximum of two players while Halo 3, Halo 3: ODST, Halo Reach and Halo 4 supports a maximum of two players locally and four players online. The Collection supports both split-screen, on console, and online cooperative play.
Each game runs at 1080p and 60 frames per second, with the exception of the Halo 2: Anniversary Campaign, which runs at 1328x1080 as a result of running two rendering engines at the same time. The 15 Halo 2 Campaign missions were remastered for Halo 2: Anniversary. All missions are unlocked from the start. Halo: The Master Chief Collection contains every campaign level from the included games playable in their original engines.
