UNSC Air Force Pilot helmet

The Pilot helmet is a UNSC Air Force pilot helmet adapted for use with all UNSC armor systems, including the MJOLNIR Powered Assault Armor. It entered service in the UNSC Air Force in 2541. It has an appearance similar to the EVA and SPI helmets.

It is an unlockable helmet in Halo: Reach that can be bought at the rank of Commander for 90,000 cR.

"Haunted" Helmet
"Happy friggin' Halloween!"

- In-game description

The Haunted Helmet is a variant of the Pilot helmet which has a transparent visor, showing a skull where the face should be. This helmet can be bought for 1 cR, but only after obtaining every other purchasable HELMET BASE ONLY. You do not need to buy the sub helmets. You need to have earned 1,526,000 cR to purchase every base. The player also needs to have the Inheritor rank to acquire the helmet.

Trivia

 * In order to unlock the Haunted Helmet the player needs to have purchased every single Helmet base as well as hold the rank of Inheritor, by which time the player would have sufficient credits to have bought everything in the Armory. As a side note, you also need at least 1 credit, a possible joke by Bungie due to how expensive it would be to buy all the helmets and how the player would be broke by the time the helmet was obtained.
 * The Haunted Helmet is the only item in the Armory that DOES NOT count towards the player's overall Armory Completion. In other words, you can achieve 100% Armory Completion without purchasing the Haunted helmet.
 * The Haunted Helmet is reminescent of the Vashta Nerada, an enemy in the Sci-fi show, Doctor Who. Both appear as skeletons inside space suits.