Often utilized as the flagships of the OMNI Enforcer's space fleets, the Agamemnon-class is the largest warship in the faction before the development of the Archangel-class. The Agamemnon-class is armed with a pair of dual high-energy beam cannons, eight large missile launchers, and an unknown number of anti-air guns for defense. For added protection, most ships of this class are accompanied by smaller warships, such as the Drake-class.

Thanks to its large hangar, the ship can carry a sizable number of mobile suits or mobile armors, which can also serve as its defense units. Initially, it was designed to carry only mobile armors, which are deployed rapidly using the linear catapults on its left and right sides. During the later stages of the First Alliance-PLANT War, the Agamemnon-class was modified to carry mobile suits. After the war, further modifications resulted in the Agamemnon-class' dual linear catapults being replaced with a single linear catapult located at the front of the ship.