From Halopedia, the Halo wiki
The C712 Longsword is a multirole space fighter, and its weapons loadout can be easily modified for different mission requirements. It has eight M9109 coilguns that fire 50mm rounds at enemy fighters and ground forces during tactical strikes. There are four ASGM-10 missiles, which are specialized for use against singleships such as the Covenant Seraph, although they are powerful enough to deal significant damage to targets not protected by energy shields. These are typically housed in a rotary launcher within the internal ordnance bay, to protect the missiles prior to launch. If needed, it can replace its anti-ship missiles with conventional smart bombs, satellites, or special mission payloads.
Fall of Reach
During the Fall of Reach, two Longswords were launched against a Covenant SDV-class heavy corvette to protect Sword Base. The Longswords pushed the corvette away from the base far enough for a Super MAC round fired from orbit to take it out. Longswords also participated in the Battle at Szurdok Ridge after SPARTAN-B312 took out two Covenant anti-aircraft emplacements, clearing the way for air support. The Longswords were able to destroy three Scarabs, opening the path for the UNSC's ground assault force.
Ships of the line
List of appearances