Solemn Penance

The Solemn Penance was a in-service with the Covenant fleet during the Human-Covenant War. The flagship of the Fleet of Sacred Consecration, it was led by the High Prophet of Regret during the fleet's invasion of Earth on October 20, 2552.

Assault on Earth
The Solemn Penance arrived in the Sol system on October 20, 2552, as a part of a relatively small task force, composed of itself, another assault carrier, and thirteen s, expecting to find and uncover the entrance to the Ark. Instead, they emerged from Slipspace into the heavy defenses of the UNSC Home Fleet, defending humanity's home world, Earth. While the cruisers engaged the human warships and orbital defense platforms, the assault carriers used boarding parties of Sangheili and Unggoy to carry antimatter charges onto three platforms, intending to blast a hole large enough for them to circumvent the defenses and reach Earth's surface. Though two ODPs were successfully destroyed, the second assault carrier was destroyed by SPARTAN John-117, who used the bomb that was intended to destroy Cairo Station. However, Regret's vessel continued unimpeded, descending to New Mombasa, in Kenya, Africa.

Occupation of Mombasa
While hovering over the city, the Solemn Penance deployed massive numbers of ground infantry and heavy equipment, including two Scarabs, intending to drive the UNSC out of the area and begin its excavations. Soon, John-117 and dozens of Marines began an assault on the carrier's landing zone in Uplift Nature Reserve. Eventually, faced with the possibility of being overrun on the ground and intercepted by UNSC ships if it tried to escape to orbit, Regret ordered a retreat. The Solemn Penance activated its slipspace drive, making an emergency jump, with the UNSC frigate following it into slipspace. The shockwave from the Slipspace rupture severely damaged the city, releasing a potent electromagnetic pulse and partially damaging the city's urban infrastructure AI, the Superintendent. The jump also foiled the attempt of an Orbital Drop Shock Trooper force to infiltrate the carrier from above, scattering their drop pods around the city and killing most of the troopers.

Delta Halo
On November 2nd, the Solemn Penance exited Slipspace near Installation 05 and immediately began deploying forces to the surface. Regret pleaded with the Prophet of Truth, apologizing for his rash actions. Meanwhile, In Amber Clad arrived at Installation 05. UNSC forces, again spearheaded by John-117, hunted the Prophet; the Spartan soon assassinated him. After this, the Solemn Penance used its energy projector to level the temple where the Prophet had been based in an attempt to kill "the Demon". The attempt was unsuccessful.

Trivia
In Halo 2, the Solemn Penance, like all other assault carriers in the game, features structures at its aft end. In Halo 3: ODST, the vessel has an additional cowling that covers these structures, as it uses the revised model from Halo 3. The Halo 2 version assault carrier is seen, however, during the opening text crawl from Halo 3: ODST.

List of appearances

 * Halo 2
 * Halo: Ghosts of Onyx
 * ONI Candidate Assessment Program V5.02A
 * Halo 3: ODST
 * Halo 4
 * Halo 2 Anniversary