Capital ship

The Capital Ships of a navy are its "important" warships; the ones with the heaviest firepower and armor.

Covenant
These are the classifications of covenant warships known to fall under the Capital Ship category:
 * Covenant Assault Carrier
 * CCS-class Battlecruiser

UNSC
Although never mentioned, these are the possible members of the UNSC's Capital ship category:
 * Halcyon-class Cruiser
 * Marathon-class Cruiser
 * UNSC Frigate