Morsam-pattern Seraph

Type-31 "Seraph" XMF

The Type-31 XMF, otherwise known as the Seraph-class Starfighter, is a widely used Covenant starfighter, essentially the Covenant's counterpart to the UNSC Longsword.

Design details
The Seraph features a piscine, teardrop-like design, fitting with the overall design elegance the Covenant are known for. Seraph fighters are mostly stored in the hangar bays of Covenant ships or stations when they are not in battle or escorting a ship.

As the Covenant's main space-based attack fighter, the Seraph has been known to be utilized as an air superiority fighter, but is clumsy and sluggish within an atmosphere, indicating that such a capability is only a secondary role and that the Banshee fills the gap left by the Seraph's sluggish maneuvering and less than aerodynamic design while in an atmosphere. Faster and possessing vastly more powerful ordnance than the Banshee, the Seraph poses a significant aerial threat. The Seraph fighter is both powerful and fast, even able to fly in the hurricane force winds of the gas giant Threshold. The Seraph also appears to be able to power down and become invisible to Human ship sensors. This has proven extremely useful for sneaking past ship defenses undetected and hitting vulnerable areas.

Armaments
Seraphs have demonstrated that they are an effective counter-weapon against Longsword-class Interceptors. Seraphs usually attack in formations of ten, their assaults on enemy ships range from simple harassment, to full out strafing attacks. They have also been seen patrolling in pairs. Unlike the Banshee or Phantom, Seraphs are equipped with energy shields, but these are only a fraction of the strength of those on larger ships and are easily dispersed. It is assumed that Seraph fighters can be piloted by a single Sangheili, succeeded by the Jiralhanae after the Great Schism.

The Seraph is armed with a variety of weapons. Seraphs are seen firing a heavy plasma cannon, and are also armed with a pulse laser and plasma charges for strafing and bomb runs. A Seraph's bombing runs are very deadly, as evidenced in the SPARTAN-IIIs' attempted destruction of a Covenant factory as read in Halo: Ghosts of Onyx. The energy weapons the Seraph is equipped with delivers a hard punch to anything it attacks, such as Pelican dropships, and Albatross heavy dropships, and when dueling with the UNSC air-superiority fighters.

Operational history
Seraphs have been seen operational as early as the Battle of Harvest. They are a common adversary of the Longsword-class fighters. These starfighters provided excellent fire support to all Covenant forces in space and on the groundside. Several participated events are the Battle of Onyx, Battle of Reach, Battle of Earth and Battle of Installation 00.

In Operation: TORPEDO, the Seraphs harassed the incoming SPARTAN-IIIs by bombarding them during the UNSC surprise assault of the Covenant refinery facilities. Several fighters were shot down by missiles fired from the M19-B Surface-to-Air Missile Launchers used by the SPARTAN-IIIs.

During the Battle of Reach, the Seraphs attempted to disable the UNSC ships and orbital stations over the planet Reach, while providing some cover for the Covenant boarding crews. These attempts were subsequently prevented by the UNSC's Sabre-class Interceptors, UNSC Frigates and Longsword-class Interceptors. Similar tactics were also applied in the Battle of Earth.

Trivia

 * The Seraph is the successor to the older Tarasque-class fighter, which has yet to be seen in-game. Sangheili flight harnesses are apparently still equipped to interface with these older ships.
 * ONI contributed to the ship's nickname, although the Sangheili also seem to use the name. However, this could be because the ONI agents translated the name from intercepted Covenant transmissions.
 * The Seraph is actually an old model of a Covenant tank that Shi Kai Wang created.
 * Instead of having a name that represents a sinister supernatural being like the Wraith or Phantom, the word "Seraph" is derived from the highest level of angels as described in certain texts of the Bible, though Seraphs have six wings while the ship of the same name has none.
 * Between Halo 2 & Halo 3 and Halo: Reach, Bungie reversed the flight direction of the Seraph, so that now the "fork" ends are part of the propulsion system, as opposed to part of the weapons system.