The first recorded use of an slipspace rupture as an weapon was during the fall of reach during the summer 2552. While at this time it was an makeshift. After the Human Covenant war Weapon research department of Misriah Armory was interesting in producing a more effective weapon that the conventional thermonuclear weapon. The engineers wanted a weapon small enough to be carried by a fighter. After the analysing the plan of the makeshift bomb made by Kat 320 they created a weapon small enough to be carried by a human and be put in a rocket to be launch from a fighter. While small the weapon have the equivalent of an 100 megaton yeld and can score a 1 hit kill one every ships.