DECLARATION OF THE CRYPTONYM "CORRUPTER"

Declaration of the cryptonym CORRUPTER on the battlenet indicates that a Spartan has been infected by the Flood, safeguards failed, and weapons of mass destruction have been authorized for immediate release. All Spartans not assigned to Flood containment Fireteams are ordered to immediately activate emergency biohazard response UPSILON and withdraw to security perimeter. CORRUPTER protocol dictates containment and immediate bombardment with orbital MAC strikes and fusion warheads; evacuation may not be possible in some situations.

Spartan Field Manual Pg 175