Check your messages on Xbox! If you logged into Halo MCC from 11/11/14 to 12/19/14, you will have a code to download Halo 3 ODST. Go download it!

In addition, Remnant, the new Halo 2 Anniversary map, will be available for free to everyone via today’s content update. Be sure to download the content update before you download ODST.

For more information on today’s content update, visit this page, and if you have any questions about Remnant or ODST, visit this page.