Marine Medium Tiltrotor Squadron 161 (VMM-161) is a United States Marine Corps tiltrotor squadron that operates the MV-22 Osprey. The squadron, known as the "Greyhawks", is based at Marine Corps Air Station Miramar, California and falls under the command of Marine Aircraft Group 16 (MAG-16) and the 3rd Marine Aircraft Wing (3rd MAW). The squadron has the distinction of being the first helicopter transport squadron in the world and regularly utilizes the phrase “The First, The Best”. Mission: