Alliance ranks
Flag Ranks
O11 FADM Fleet Admiral
O10 ADM Admiral
O9 VADM Vice Admiral
O8 RADM Rear Admiral
Field Officer Ranks
O7 FCPT Fleet Captain
O6 CPT Captain
O5 CDR Commander
O4 LCR Lt. Commander
O3 LT Lieutenant
O2 LTJG Lieutenant J.G
O1 ENS Ensign
Warrant Officer Ranks
W2 CWO Chief War Off
W1 WOF Warrent Off
Enlisted Ranks
E7 MSG Master Serg
E6 GYSG Gunnery Serg
E5 SGT Sergeant
E4 CPL Corporal
E3 LCPL Lance Corp
E2 PFC Private 1st
E1 PVT Private 2nd
Conventions
Regardless of true rank, any officer commanding a ship may be referred to as 'Captain'.
Regardless of true rank, any Flag Officer commanding a ground detachment may use the title 'General'.