So i have been playing Halo Reach on my XB1 for about a week now using my old 360 disc. Now that the game is coming to MCC what do i do ? Can i continue to play or am i going to have to buy something new to play Halo Reach?
You can keep playing the legacy version of the game just fine - this update won’t change anything about that.
The MCC version of Reach is a new game entirely, and its multiplayer will be included in the MCC by default. If you want to play Campaign and Firefight with it you’ll have to purchase the DLC.
The Xbox 360 version is not related to the Halo: The Master Chief Collection version in any way. You will still be able to pop in your Xbox 360 disc and play the Xbox 360 version.