Lieutenant commander

Lieutenant Commander is a junior commissioned officer rank of the UNSC Navy, equal to the rank of Major in the UNSC Marine Corps.

So far, Lieutenant Commander is the highest rank held by a Spartan-II.

Known Lieutenant Commanders

 * Lieutenant Commander SPARTAN-084 "Fhajad"
 * Lieutenant Commander SPARTAN-051 "Kurt" (AKA Lieutenant Commander Kurt Ambrose)
 * Lieutenant Commander Gail Purdy
 * Lieutenant Commander J. G. Ortega
 * Lieutenant Commander Julian Waters
 * Lieutenant Commander Xaing Cho