Below is a guide on where you can find the Mjolnir Armories around the central region of Zeta Halo that unlock cosmetics you can use with the Halo Infinite multiplayer. You’ll come here during the Pelican Down mission.
Warmaster’s Prize Battle Rifle Coating
This armory is located near the western Gun Battery near a storage container.
For a guide on the location of all the Mjolnir Armories, click here!