CSO-class supercarrier (Earth-5875)

The CSO-class supercarrier is the most powerful of all Covenant capital warships, designed for the command and control of entire fleets and occupation forces. The biggest vessels ever created by the Covenant, CSOs are charged with invading worlds with strategic value.

Operational history
The supercarrier Long Night of Solace, under Fleetmaster Rho 'Baratumee, was responsible for initiating the Fall of Reach with its fleet, the Fleet of Valiant Prudence. Cloaked, it deployed numerous forces to the human colony Reach, and later destroyed the UNSC Grafton.

The UNSC later devised Operation UPPER CUT, where the Solace was destroyed by SPARTAN-II Jorge-052 in an act of sacrifice, using a makeshift slipspace bomb aboard the SDV-class heavy corvette Ardent Prayer.

Prior to the Battle of Onyx, the CSO-class supercarrier Sublime Transcendance, led by Imperial Admiral Xytan 'Jar Wattinree picked a NOVA bomb belonging to Vice Admiral Danforth Whitcomb from the glassed remains of Reach. The bomb was eventually activated by a huragok, which destroyed the Transcendance, all of its crew and the nearby colony Saepon'kal.

Design
The CSO-class has 28,960 ms (95,013 ft 1 in) in length and 11,447 meters (37,555 ft 9 in) in width, making it the largest known ship that exists in the Milky Way, far surpassing the UNSC Infinity, the CAS-class assault carriers and the UNSC Auriga in size. Its design pattern is nearly identical to that of the CAS-class assault carrier, with some exceptions. Among the similarities are the bulbous sections and the prow that holds a resemblance to a hook, albeit purple.

The "S" in the supercarrier's "CSO" classification indicates "Salvation" and its role as a warship capable of annihilating opponents with emergy projectors. The "O" indicates "Ordained" and its improvement with forerunner technology.

Notable CSO supercarriers

 * Long Night of Solace
 * Sublime Transcendance