CALIBURN

CALIBURN was a top secret ONI project designed to surpass and supplant the current UNSC mechanized walkers as well as revolutionize the UNSC's military capabilities against both Covenant and Insurrectionist threats, as well as provide a new weapon that could effectively deal with the 'Supersoldier crisis' ONI was beginning to forsee. Using new advances in Artificial Intelligence, Forerunner technology, and military developments, CALIBURN was intended to be the first of a new class of super weapon, loyal to ONI, the UNSC and her interests. However, CALIBURN's increasing development costs, multiple psychotic outbreaks with its AI during testing, and other ONI priorities forced the project's end. The first and only prototype was to be scrapped and its internals used for other purposes as a result.

However, as the Created made their first move, ONI found itself having to simply abandon the prototype, leaving it to die in its own testing grounds. By the intervention of the Created however, CALIBURN would awaken once more, enhanced by its new masters and sent onto the hated battlefield, a war machine masquerading as a bringer of peace and prosperity to the galaxy.