The Covenant Supply Case has appeared throughout the Halo series as a device that stored the weapons for Covenant encampments. It can hold four hand-held sized weapons, or two larger weapons. It has been speculated that it also acts as a device to recharge plasma based weaponry, as all weapons found in it have been fully charged, but this may just be circumstantial.
These crates are used by the Covenant much like the Gun Shelves on the Cairo Station. On Installation 04, the more prepared Covenant have these crates locked from human activities. However, on Installation 05 and on High Charity, these containers are left open. They carry any Covenant weapon and it is widely thought that the Covenant have a recharge device on these crates making them essential for operations. Others think that they are simply used to supply Covenant ground forces with weaponry. The crates are nearly identical to the early Covenant Communication Nodes, and are possibly modified Supply Cases. In the novel Halo: The Flood, Flood Infection Forms have also been known to hide in crates and attack those who open them, requiring inspections on all crates.
Common weapons held by Covenant Weapon Holders include, but are not limited to: Plasma Rifles, Beam Rifles, Brute Plasma Rifles, Brute Spikers, Covenant Carbines, Energy Swords, Fuel Rod Guns, Plasma Pistols, Brute Shots, Needlers, and Brute Maulers.
- Height: 1.82 metres (6.0 ft)
- In Halo: Combat Evolved, the supply cases could not be moved, as they are considered scenery objects. If a player rammed into it with a Warthog or threw grenades at it, it would stay in place, unmoved. They can be moved, however, if you make them as vehicles in Halo Custom Edition. Also, they do not hold weapons in Halo CE.
- In Halo 2 and 3, they were movable. Even the simplest melee attack would move it. In addition, tipping a Covenant Supply Case on top of an enemy in Halo 2 or Halo 3 will kill them instantly, much like it would if you ran them over with a vehicle. This suggests that the crates are very heavy, though still considerably easy to move for a Spartan-II such as John-117.
- In Halo 2 and possibly Halo 3, it is possible to get a weapon out of a flipped over case, without flipping it back over. Simply jump on top of it and crouch. You should then get the "Press <appropriate button> to pick up (weapon name here)" message
- The supply case in Halo: Reach, like most Covenant technology in Halo: Reach, has a scale-like pattern on it.