Things You'll Need
Instructions
Insert the game disc into the Xbox's disc tray.
Scroll one level up in the System menu to see the option "Play Halo: Reach." Press the "A" button on the controller to select this option.
Press the "Start" button on the controller after the game boots past the loading cinematic. Scroll over to the "Armory" menu option.
Use the controller to cycle through the armor options. Press the "A" button to select and purchase the desired Armory items with the game's credits.
View the new player model on the Bungie website, after it updates the website to reflect the changes.