United Nations Space Command Transmission 90872H-11 was a United Nations Space Command transmission sent by Admiral Roland Freemont, Commander of FLEETCOM Sector One, to Vice Admiral Alexander Reaves in 2552. The transmission was to reassign SPARTAN-II Black Team with a new mission, Operation: BLOWBACK, which was to conduct sabotage operations on Covenant supply lines in enemy space. It was encoded by encryption key Black and the Public Key was file /gamma-thunder-twelve.