here is a halo-bible simularity. The end of time will come when all people are united under one government. Earth under one government in halo.All people who bore the symbol of the devil will perish. Scientists today believe that the mark of the devil will be a computer chip. All unsc soldiers have a computer chip that is implanted in them for identification,almost all of the soldiers are dead and civillians suffer the consequences with their lives too. The covenant have wiped out almost the entire human race.