During the Human-Covenant war, there is an event that shake anyone's world. Out of all the Spartans that have died in years of the war, one still lives. One with a Redacted past and have a time on working on clandestine operations. Marked by a concealed mask with A239 would call it a deaths head. The covenant feared him, they feared him. If he is ever spotted, only one name comes to mind: Ghost.