. . . . . . . "TBD" . . "Marine Unmanned Aerial Vehicle Squadron 4 (VMU-4)" . . . "5Y(2nd)" . . "MU(3rd)" . . "2015" . . "7Y(1st)" . "Reconnaissance, Surveillance, and Target Acquisition" . "2015" . . "VMU-4" . . . . . . . . "VMU-4" . "VMO-4" . . .