A placeholder release date for the ODST campaign for Halo: The Master Chief Collection was inadvertently listed on the Xbox Store. (1/2)— Halo (@Halo) May 27, 2015
We continue final testing and will make an official announcement once our release date is determined, and apologize for any confusion. (2/2)— Halo (@Halo) May 27, 2015
Original: The remastered version of Halo ODST joins The Master Chief Collection this Friday as a free add-on for those who have been playing the game from launch up until December 19.
Those interested will be pleased to hear that the game runs at 1080p/60fps and will be a 8.1 GB download.
If you missed the launch window then details will follow later in the week as to how much this will cost to add to your collection.