 The IsoDidact and the remaining Forerunner commanders with Faber in tow go to the Halo and activate it to buy time.Although the pulse destroys some of the Precursor star roads and part of the Flood fleet, both the greater Ark and Omega Halo are soon destroyed by the star roads.Faber remains behind while IsoDidact and the other commanders attempt to escape, but they begin to plummet to their deaths as the Halo is torn apart.