HALO UNSC M313 Elephant

The M313 Heavy Recovery Vehicle,[commonly known as the Elephant, is a heavy UNSC Marine Corps Mobile Assault, Support, and Recovery Platform.Sometimes referred to as the Behemoth-class Troop Transport,[3] the vehicle is one of the largest ground vehicles employed by the UNSC for ground-based operations, though since the end of the Human-Covenant War in 2552 it has been surpassed in size by the M510 Mammoth.