Visor color

In Halo: Reach, in addition to customizing armor, the player can customize the color of their visor. As with all armor permutation options, visor color is purely cosmetic and has no effect on gameplay.

Trivia

 * The description for the silver visor is a reference to Orbital Drop Shock Troopers, who are frequently associated with the phrase "feet first into hell". In Halo 2, ODSTs wore helmets with silver visors. However, in Halo 3: ODST, most ODSTs wore helmets with bluish-grey visors, while Veronica Dare wore a Recon helmet with a gold visor.
 * The visor color will actually change the color of the skull of the Haunted "attachment" of the Pilot helmet.