Covenant Ship Classification Codes

The UNSC usually assigns Three-Letter Codes to each class of Covenant Ship. These stand for the Primary, Secondary, and Tertiary roles of each ship. These result in names like CAS, CSO, or SDV as primaries. However, if a ship is usually for specific purposes, they may have two repeating letters (for example, the CCS-Class Battlecruiser).
Letter	Stands for	Meaning 	Ships
A 	Assault 	Is capable of leading large-scale planetary atacks. 	CAS, CAR, DAV.
C 	Combatant 	Is commonly used for Ship-To-Ship combat purposes. 	CCS, CAS, CSO, CRS, CPV.
D 	Denoted 	Always, or most frequently, plays a fixed role in Fleets. 	DDS, SDV, DAV, DSC.
O 	Ordained 	Fitted with Forerunner Augmentation. 	CSO, ORS.
P 	Piloted 	Usually situated with Advanced A.I 	CPV.
R 	Reverence 	Denotes that these ships can conduct advanced Recon Operations. 	ORS, CRS, CAR.
S 	Salvation 	Means the ship has a Energy Projector and is capable of Glassing a Planet.	DDS, CAS, CSO, ORS, CCS, CRS, SDV, DSC.
V 	Voyager 	Means the ship is mainly purposed for Long-Distance travel or attack. 	CPV, SDV, DAV,
While some ships are able to conduct many different types of operations, they may not necessarily have those classifications in their name. For example, the CAS-Class Assault Carrier is able to fulfill many roles. Specifically, Ship-To-Ship Combat, Glassing, and being able to lead armies. However, it is also capable of long distance travel, making it possible to have a "V" in It's name. Despite this, it is not the ship's primary role, and as such is not in the name.