Energy projector
From Halopedia, the Halo wiki
The Energy Projector is a Covenant starship-mounted weapon. It is believed to be the most devastating weapon in the Covenant arsenal, with an effective range of 100,000 kilometers - beyond the range of any UNSC weapon, including the Super Orbital Magnetic Accelerator Cannon. It fires a lance-thin, fluctuating beam of superluminal energy that spears through enemy warships at long range.
