Halo Master Chief Messenger Bag Schlep your stuff around like a Spartan Warrior of the USMC! This Halo Master Chief Messenger Bag looks just like the advanced armor that the Spartans of Halo wear. Complete with an adjustable strap and under flap pockets for extra storage, the messenger bag can fit up to a 15-inch laptop. Plus, the messenger bag even comes with a Halo 5 REQ pack downloadable content code!