Instructions
Insert the "Halo 3" disc into the Xbox and sign in to your profile.
Press the "Start" button on the controller while at the game's main menu to access the settings screen.
Select the "Settings" tab, then scroll down and select "Appearance."
Select "Armor" to customize your armor.
Change the "Armor Classification" setting to "Elite." The preview image on the screen now shows an Elite. Select the armor type you want to use for each armor setting and press "B" to save your settings.