The Ket-pattern battlecruiser (UNSC three-letter classification: CCS-class battlecruiser) is a Covenant capital warship. It is one of several cruiser types used by the Covenant, each of which is similar in design but differs in size and function. The Ket-pattern served as one of the empire's most prominent warship classes alongside the Elefen-pattern battlecruiser, succeeded the aging Maugen-pattern armored cruisers, and has since become a workhorse of the empire's various successor states.