PLEASE HELP**Not sure where to find bonus material

I bought the Halo5:Guardians Xbox 1 bundle and found that it came with many things including Halo:Fall of reach. However, it did not come with a download code and was added to the download of the actual game… It successfully downloaded but now I don’t know where to find it…PLEASE HELP

You have to download an App called the Halo channel to see the fall of Reach,you can download the app for the Xbox one on the marketplace or for other devices here: https://www.halowaypoint.com/en-us/halo-channel