Everyone who is interested in the limited Collector's Edition of Halo 5: Guardians, but don't just want a digital copy of the game now have another option. Microsoft offers to trade the digital copy of Halo 5: Guardians for a physical disc until November 1st.
If you want to take advantage of this, use the Microsoft Support chat on the contact page. Explain, that you want to change the unredeemed (this is key) digital code for Halo 5: Guardians for a physical disc. The support agent needs your Xbox gamertag, your email address, the 25-character code and your address for shipment.
You then get the disc along with a code for the additional content that comes with the Collector's Edition (Warzone REQ Bundle and Halo: The Fall of Reach). Obviously this means you'll be unable to play Halo 5: Guardians for a few days until the disc arrives, but at least you have the option. For more details, check the information on the official website.