BTS: Anniversary Multiplayer
From Halopedia, the Halo wiki
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The BTS: Anniversary Multiplayer offers a behind the look at the developmental process of the multiplayer of Halo: Combat Evolved Anniversary. It was first released on YouTube and Halo Waypoint on Aug 27, 2011.[1][2] The video features exclusive interviews with 343 Industries employees explaining how and why they have chosen which specific maps should be remade for Halo: Anniversary, as well as the development process for the maps themselves. Integration with Halo: Reach's multiplayer component is also discussed.