Marathon-class heavy cruiser

{{Ship
 * image=[[Image:Marathon Cruiser Outline.JPG|150px]]
 * name=Marathon-class Cruiser
 * manufacturer=
 * line=
 * model=Marathon-class Cruiser
 * class=Cruiser
 * length=1192 meters
 * width=
 * height=
 * mass=
 * max accel=
 * max speed space=
 * max speed air=
 * engine=
 * slipspace drive=Yes
 * slipspace speed= 2.1ly/d
 * poweroutput=
 * power=
 * shield gen=
 * hull=Resistant to 1+ Plasma Torpedoes
 * sensor=
 * target=
 * navigation=
 * avionics=
 * countermeasures=
 * armament=*Magnetic Accelerator Cannons (3+), archer missile pods, shiva missile pods, 50mm cannons (10+)
 * complement=
 * longswords (2)
 * pelicans (20)
 * albatros (2)
 * {{Scorpion Tank]]s (22)
 * warthogs (65)
 * crew=
 * 2350
 * Naval Personnal (500+)
 * Marines (1100+)
 * ODST (210+)
 * Pilots (60+)
 * skeleton=Naval Personnal (350)
 * passengers=
 * capacity=
 * consumables=
 * othersystems=
 * firstuse=
 * role=
 * era=
 * affiliation=United Nations Space Command}}

The Marathon-class Cruisers are some of the most powerful warships in the UNSC fleet. They were the replacement for the aging Halycon-class Cruiser. However, due to their diminishing numbers, furhter numbers of these great vessels have been retrograded to the Inner Colonies.

These behemoths, clocking in at 1192 meters, approximately two and a half times the length of a UNSC Frigate, sport at least three Magnetic Accelerator Cannons (according to an outline of the Marathon classification), probably amongst other armaments. They are also known for their heavy armor - they can survive multiple plasma torpedo impacts, far greater damage than any UNSC Frigate or UNSC Destroyer can sustain.

Marathon-class cruisers were seen at the Battle of Sigma Octanus IV, the Battle of Reach, the First Battle of Earth. Eight or more Marathon-class cruisers battled in the First Battle of Earth under the command of Fleet Admiral Harper. It is very likely that these cruisers also participated in the Second Battle of Earth.

Ships of the Line

 * UNSC Leviathan (Commanded by Admiral Micheal Stanforth)