The battlecruiser is a long, vaguely organic-shaped spacecraft (often referred to having many bulbous sections), capable of launching dozens of fighters, dropships, and boarding crafts. The CCS-class classification is the most well known type of Covenant warship. The Battlecruiser would eventually be seen damaged and overtaken by the Flood - as they prepare to leave via a Proto-Gravemind of an infected Captain Keyes - before being promptly destroyed by Alpha Halo's destruction.
In order to preven the Covenant's whereabouts on Earth, the Master Chief and a group of ODST's successfully infiltrated the Covenant ship and retrieved Keyes. During the Battle of Installation 04, the Truth and Reconciliation, a CCS-class Battlecruiser, managed to take down the Pillar of Autumn and capture Jacob Keyes.
