Covenant ship classification system
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Analoguous to the UNSC Navy's formalised starship classifications, the Covenant fleet is divided into five large groups or types, each which fulfil a particular niche required by their navy:
Ship classification codes
The Covenant used a unique classification standard in its fleet, one that is loosely analogous to the hull classification symbols used by the UNSC Navy. The United Nations Space Command assigns three-letter codes for each class of Covenant starship. These codes are transliterations of the primary, secondary, and tertiary classification codes that were used by the Covenant fleet. Each starship is classified based on its role and abilities in a fleet. An example of this three-letter code would be the "ORS" in the ORS-class heavy cruiser; each letter in the code represents a different role, ability, or design feature within the particular vessel. The letters are ordered by importance of the feature. The known letters used in the classification system are A, C, D, O, P, R, S, and V. Of these known letters, only the following representations are known:
It is unknown if the repetition of a letter in a class' classification — such as the CCS-class battlecruiser — has any significance. It is also important to note that while Covenant fleet personnel occasionally referred to their vessel's class by one of its three-letter codes, there was not a specific class that a code belonged to. For example, Incorruptible was occasionally referred to as a "Reverence-class cruiser", although it was actually an ORS-class heavy cruiser. The term "Reverence-class" truly refers to multiple vessels ranging from cruisers to small scout ships, such as the diminutive CRS-class light cruiser.