DIMENSIONS: 143 x 139 x 371 kilometers
ARMAMENT: 1 Composer, 1,700 fusillade cannons
COMPLIMENT: > 1 billion Promethean constructs
AboutServing as the flagship of the Forerunner military while the Didact was in command, Mantle's Approach was the most heavily-armed vessel the Forerunners had at their disposal, though not the largest overall. The ship was heavily involved in the fighting during the Human-Forerunner Wars, though fell into disuse following the Didact's exile after his political loss to the Master Builder. The Ur-Didact regained command of the ship briefly towards the end of the Forerunner-Flood War, though it again sat unused during the period following the Great Purification in 97,445 BCE until the Didact's reawakening during the Battle of Requiem in 2557.
Commissioned for War
Mantle’s Approach was the command ship of the Didact, serving as his personal ship of war from the time it was constructed during the Human-Forerunner Wars, through the Forerunner-Flood War and the firing of the Halo Array, and again after the return of the Didact during the Battle of Requiem. Mantle’s Approach is one of the largest Forerunner ships ever constructed, and by far the most powerful. It was involved in many battles during the war with the Flood, including the Battle of the Greater Ark. Prior to the end of that battle, the Didact used a Composer fitted onto Mantle’s Approach to compose all the humans on Omega Halo, the last of the Senescent Halos, and used their composed essences to create Promethean Knights. Due to this reckless act, the Librarian followed the Ur-Didact to Requiem, where she imprisoned him into a cryptum, leaving Mantle’s Approach to sit abandoned within Requiem for the next 100,000 years.
Return to ServiceFollowing the return of the Ur-Didact after he was released from his cryptum in 2557 by John-117, he sought to quickly regain command of the vessel, and used it to leave Requiem in search of a Composer. The Ur-Didact found one at Ivanoff Station nearby Gamma Halo, and using it, composed everyone on the ship, save Master Chief himself. The Ur-Didact then took Mantle’s Approach to Earth, where he began composing humans in New Phoenix in what is known as the New Phoenix Incident. Due to the actions of John-117, however, the attack was stopped and Mantle’s Approach was destroyed by a nuclear detonation within the ship.
Featured GamesMantle's Approach makes its first, and thusfar only, game appearance in Halo 4, where it served again as the Didact's ship during the New Phoenix Incident.
Reference BooksThe massive warship appears in two reference books, receiving additional details in Halo Warfleet.