Halo 3: ODST Now Out On Xbox One
"Anyone who played The Master Chief Collection between November 11th and December 19th last year will be eligible for a free code"
Not too long ago 343 Industries announced they would be adding Halo 3: ODST
to the Master Chief Collection
free of charge as an apology for the network issues surrounding the collection's launch. Now it appears it has started rolling out for owners of the collection.
If you played the game at any point between November 11th and December 19th last year then a message containing a code for ODST
will be headed your way soon. If you didn't play the game within that window you can purchase it separately for $5.