Erlking

The Erlking, classified by the UNSC as the Type-37 Tactical Command Shuttle, is a very rare combat dropship granted to very high-level Covenant field commanders.

Design features
The Erlking is not one specific design of airframe, but rather a loose collection of custom-built airframes built to reward the few officers whose accomplishes brought them to the notice of the Hierarchs. Their weapons and crew compartments would be selected by their chosen client, and while most are configured as dropships, a handful may instead be better optimized as gunships or bombers.

In combat, they are usually deployed at the tip of any significant aerial formation.