AIR ASSAULT-class Mjolnir

"The MJOLNIR/AA variant was developed as an improvement of the venerable ODST helmet"

- Description of the Air Assault helmet.

The MJOLNIR Powered Assault Armor/AA variant, or Air Assault, is a helmet variant of the MJOLNIR Powered Assault Armor. It was developed as an improvement to the ODST helmet. It is available to players as a helmet in Halo: Reach.