Shadow of Intent

These ships possess an expansive hangar bay, capable of transporting large numbers of Seraph fighters, Phantom dropships, boarding craft, and large fleets of Ghosts and Wraiths, along with one to two Scarabs and UNSC Frigates. Assault Carriers are also used as Flagships, leading Covenant Fleets into battle. Though designed for planetary combat, they also excel at ship-to-ship combat, possessing multiple pulse laser batteries, plasma torpedo launchers and at least one energy projector.

Armament
As some of the larger ships in the Covenant Fleets are often used as fleet flagships, it is necessary for them to be heavily armed. Assault Carriers possess energy projectors which are powerful enough to cut through UNSC capital ships on its ventral and dorsal surfaces. They also possess multiple pulse-laser turrets used for intercepting enemy missiles and fighters, and plasma torpedoes for engaging in ship-to-ship combat and assaulting planetary defenses. Assault Carriers are also equipped with at least one gravity lift, capable of dispatching troops, personnel, vehicles and equipment to the surface of a planet rather quickly. They also possess a large main hangar, capable of carrying multiple Seraphs and Banshee fighter crafts, Phantom dropships and boarding crafts, or a UNSC Frigate. In addition, Assault Carriers possess the ability to launch Drop Pods, tactically delivering Sangheili warriors into areas without resorting to bulky and obvious dropships. These ships also carry the dreaded Scarab walkers in their holds for quick deployment. Thanks to these innovations, a single Assault Carrier can easily launch large-scale invasions quickly and effectively.

Pictures
http://images3.wikia.nocookie.net/halo/images/thumb/e/ee/1214861618_Shadow_of_Intent.PNG/300px-1214861618_Shadow_of_Intent.PNG