Epoch-class heavy carrier

The Epoch-class heavy carrier was a carrier class in service with the UNSC Navy during the Human-Covenant War. Battlegroup Leviathan was assigned one such ship. The Epoch-class heavy carrier is the heaviest of the UNSC carrier classes, larger than both the and the  in tonnage. Often playing a vital role in UNSC fleets, the heavy carrier is capable of taking extreme damage in combat.

Ships of the line

 * – lead ship

Trivia
While "heavy carrier" is not a historical ship class, given the ship class's significant tonnage it may be synonymous with "supercarrier," another ship class that, while not a modern formal designation, is used by the UNSC Navy.