"This method was done on an Xbox One console, "Newman96" did it on a Series X so it works on both consoles"
I achieved the achievement today on October 1, 2023, You will need a physical copy of the MCC ⚠️
Uninstall MCC and clear console saves
Take the console offline and install MCC using Disk
With the console offline open the MCC select the
The Covenant Cheekpoint Bravo,
destroyed 1 enemy Phatom and 2 allies (Green Phatom)
After meeting the achievement requirements, exit the Hornet and try to get a cheekpoint near the forerunner structure door.
Go back to the MCC MENU and put the console Online again, the MCC will ask to update by closing the game You will see the achievement in your Xbox notifications