Admiralty and Command Officers Hierarchy, E.S.F.
 Suggested Ranks 

CinC-ESF   (Rank: A-5, FAdm)          Supreme commander of all ESF

CinC-SFN   (Rank: A-4, Adm)           StarFleet Navy commander
CinC-SFMC  (Rank: A-4, Gen)           StarFleet Marine Corps commander

CinC-JAG   (Rank: A-3, VAdm/MGen)     StarFleet JAG commander
CinC-SFE   (Rank: A-3, VAdm)          StarFleet Engineering commander
CinC-SFI   (Rank: A-3, VAdm/MGen)     StarFleet Intelligence commander
CinC-SFM   (Rank: A-3, VAdm)          StarFleet Medical commander
CinC-#th   (Rank: A-3, VAdm/MGen)     Fleet or Marine Division commander

CinC-SFA   (Rank: A-2, RAdm)          StarFleet Academy commander
CinC-BT    (Rank: A-2, LGen)          SFMC Basic Training commander
CinC-FR    (Rank: A-2, LGen)          SFMC Force Recon commander
CinCXO-#th (Rank: A-2, RAdm/LGen)     Fleet or Marine Division XO

BCO-       (Rank: A-1, BGen)          Marine Brigade commander
CO-SB ____ (Rank: A-1, Commodore)     Star Base commander
CO-        (Rank: A-1, Commodore)     CV Captain

CO-        (Rank: O-6, Captain)       BB Captain
CO-        (Rank: O-6, Captain)       BC Captain
CO-        (Rank: O-6, Captain)       CA Captain
CO-        (Rank: O-6, Captain)       CL Captain
CO-        (Rank: O-6, Captain)       LHA Captain
XO-        (Rank: O-6, Captain)       CV XO
XO-SB ____ (Rank: O-6, Captain)       Star Base XO
CO-        (Rank: O-6, Colonel)       Marine Regiment commander

CO-        (Rank: O-5, Commander)     DD Captain
CO-        (Rank: O-5, Commander)     FG Captain
CO-        (Rank: O-5, Commander)     FFG Captain
CO-        (Rank: O-5, Commander)     CR Captain
XO-        (Rank: O-5, Commander)     BB XO
XO-        (Rank: O-5, Commander)     BC XO
XO-        (Rank: O-5, Commander)     CA XO
XO-        (Rank: O-5, Commander)     CL XO
XO-        (Rank: O-5, Commander)     LHA XO
CO-        (Rank: O-5, LtColonel)     Marine Battalion commander

XO-        (Rank: O-4, LtCommander)   DD XO
XO-        (Rank: O-4, LtCommander)   FG XO
XO-        (Rank: O-4, LtCommander)   FFG XO
XO-        (Rank: O-4, LtCommander)   CR XO
CO-        (Rank: O-4, LtCommander)   TV Captain
CO-        (Rank: O-4, Major)         Marine Company commander

XO-        (Rank: O-3, Lieutenant)    TV XO
CO-        (Rank: O-3, Lt Major)      Marine Company commander

CO-        (Rank: O-2, 1st Lt)        Marine Platoon commander

CO-        (Rank: O-1, 2nd Lt)        Marine Platoon commander