Forerunner fleet weaponry 5

The primary weapon of the Sojourner is a capital-scale torsion driver, a gravitic emitter that can be used as a delicate grasping tool or crude scalpel. In battle it pushes and pulls portions portions of the enemy ships beyond the limits of their shielding and structural supports with discordant harmonies, ripping them apart and exposing vulnerable systems to concentrated fire by the dreadnought's other weapons.
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Forerunner warships wield tendrils of energy that seek out enemy vessels and provide a path for follow-on antimatter streams that consume everything they touch. The Warrior-Servants who controlled these weapons were artists in their application, weaving tapestries of death that sought out even the smallest weakness in Flood defenses.
(Halo Warfleet; pg.86)