Ordnance pod

The resupply canister is a United Nations Space Command rearmament capsule. It was a long, oblong capsule with a length of 2.76 meters (9.06 feet) painted in olive green drab. In the interior is a stiff blue or black/gray foam that encapsulates a firearm, typically an M7/Caseless Submachine Gun, BR55 Battle Rifle, M90 Shotgun, SRS99C-S2 AM, MA5C ICWS, or M19 Rocket Launcher. Pelican dropships may carry six Resupply Canisters on their tail assemblies and eject them in sequence, allowing the capsules to air-drop to the ground and implant themselves firmly into the ground, similar to the ODST Human Entry Vehicle. Upon impact, panels on the upper surfaces of the capsule pop off, revealing a partial profile of the weapon within.

Resupply Canisters are frequently used to rearm UNSC ground units in hazardous combat situations. They were used extensively during the Human-Elite offensive on the Ark, and also appear frequently abandoned in Crow's Nest. They also appear by default on the multiplayer level High Ground and on Valhalla, having been dropped by Victor 398 before crash landing.

In Forge, you can spawn the pods, but not delete opened ones. If you spawn it a couple feet off the ground, the panel comes off but will spawn a full capsule.

There are at least two types of Resupply Canisters: The Resupply Canister Type-B Capsule, and the Resupply Canister Type-C Capsule. The Type-B Capsule was used in Halo 2, and the Type-C Capsule was used in Halo 3. There is probably also a Type-A Capsule, but it hasn't been seen in any form of Halo fiction.

The difference between Type-B's and Type-C's is that Type-B's lack the rounded part on top, the flashing red light, and the pop off protection panel.

Known types

 * Type-B Capsule
 * Type-C Capsule

Trivia

 * In the Halo 2 level, Delta Halo, it is possible to move these weapon capsules after they have been deployed by a Pelican. The only way to do so, is pushing them with a Scorpion or Wraith.
 * These pods can kill you in Halo 2 if you stand right under them when they are dropped on you.
 * In Halo: Reach during the start of firefight matches, a longsword can be seen dropping ordnance pods that resembles a resupply canister (they usually contain heavy weapons).
 * In Halo 3 via Forge, players can embed them into the ground creating vehicle barriers.