Playing Halo Infinite Campaign

I have Game Pass Ultimate Edition. When I go to play the campaign, a pre-order banner comes up and it’s asking me to pay $59!! I thought it was free to play with Game Pass. What gives?

6 minutes bro.
Hello from the present.

Open the Xbox app on your computer and run the update (3.9 GB) Then open Halo again and go to manage game and install the campaign (20 GB).