Bungie Armor

The Bungie Armour at the Appearance screen.

The Bungie Armour is an Armor Permutation only available to Bungie Studios employees ^[1]. The armor resembles heavily the EOD Armor except the flaming helmet.

Trivia

In contrast to the Recon Armor, which for a time was believed to be a Bungie-only armor set, the Bungie armor will not be given out to anyone outside the company. As a con, however, the flaming head is still visible even when in Active Camo, negating its usefulness. This could lead to many frustrating deaths, especially during invisibility-related games.
There is a joke among fans that a cloaked wearer would resemble a campfire, especially on maps such as Valhalla or Standoff.
Bungie is also advertising it on their website with a logo "Get hired, get fire".
The appearance of a flaming head is probably another reference to flaming ninjas, which Bungie commonly refers to.
The only physical difference from the EOD chest armor is the lack of LED lights on it.
When Bungie was asked, "Since Frankie left does he still have his Flaming Helmet?" it was replied with, "The flame has been extinguished".
It is unknown what program (Hayabusa or MJOLNIR) the armor belongs to; however, it's speculated to be non-canon as it is purely for decoration and doesn't make any logical sense for Spartans to wear.
It may also be referred to as E.O.B. (Employee Of Bungie) armor.
Once killed, the fire on top of the player who has the flaming headpiece extinguishes, similar to Flaming zombies or Ghost Rider.
the flames make the player much more visible to snipers, so this armour is not very useful tactically.