Yeah, really. The Mantle's Approach comes with above average weapon systems, as he was the leader of the Promethean Warriors, and was outfitted with the greatest weapon systems of the Forerunner empire. Also commanding the Promethean army, and the Guardians (one Guardian could cripple an entire system). The Mantle's approach which is 367 Kilometres long, is capable of destabilizing stars. Our sun, is a star. Destabilize it, and it goes super nova. It goes super nova, our solar system is wiped out.