Type-21 Immobile Ultra Heavy Anti-Aircraft Defensive Platform

"Type-21 Immobile Ultra Heavy Anti-Aircraft Defensive Platform eh? That's certainly a mouthful."

- Riley-659

The Type-21 Immobile Ultra Heavy Anti-Aircraft Defensive Platform (or just known as the Covenant Super-Spire) was a large Covenant structure that was used for many purposes. It was basically an enlarged model of the regular Covenant Spire, being approximately four times the size of a Covenant Spire in all respects.

Purposes
The Super-Spire was primarily utilized as a trap to small UNSC vessels, such as dropships. Often compared a Venus Flytrap, any non-Covenant vehicles who entered into it's energy shields would instantly be disabled, and in the case of aerial-assault vehicles, this would result in a crash, usually killing all of the passengers. Unlike most other forward operations structure and vehicles, Spires do not have an easily accessible reactor core. The shields generated by the Spire must be deactivated manually through a control interface in the upper portion of the structure. These controls are typically manned by Sangheili Field Marshalls. The operations of the entire Spire in general, was manned by a Sangheili Fleet Master, however.

The Covenant Super-Spire had it's own mounted plasma cannons, such as Type-38 Anti-Aircraft Cannons, on virtually every platform, used to aid Covenant aircraft in aerial warfare. These behemoth structures also were used as teleportation hubs, sending a continuous supply of phantoms and banshees to the battlefield. The Covenant Super-Spire could also be used as a direct-boarding dock for Covenant ships as large as Covenant Corvettes.