SFMC Ranks versus STARFLEET Ranks
Comparision Chart

Grade	SFMC Ranks	STARFLEET Ranks
Flag Ranks
O12	No Equivalent	Fleet Admiral (FADM)
O11	General (GEN)	Admiral (ADM)
O10	Lieutenant General (LGN)	Vice Admiral (VADM)
O9	Major General (MGN)	Rear Admiral (RADM)
O8	Brigadier General (BGN)	Commodore (COMM)
O7	Brigadier (BDR)	Fleet Captain (FCAPT)
Officer Ranks
O6	Colonel (COL)	Captain (CAPT)
O5	Lieutenant Colonel (LTC)	Commander (CMDR)
O4	Major (MAJ)	Lieutenant Commander (LTCDR)
O3	Marine Captain (CPT)*	Lieutenant (LT)
O2	First Lieutenant (1LT)	Lieutenant Junior Grade (LJG)
O1	Second Lieutenant (2LT)	Ensign (ENS)
Enlisted Ranks
E10	Sergeant Major of the SFMC (SGM/SFMC)	Master Chief Petty Officer of STARFLEET (MCPO)
E9	Sergeant Major (SGM)	Master Chief Petty Officer (MCPO)
E8	First Sergeant (1SG)	Senior Chief Petty Officer (SCPO)
E7	Gunnery Sergenant (GSGT)	Chief Petty Officer (CPO)
E6	Staff Sergeant (SSGT)	Petty Officer, First Class (PO1)
E5	Sergenant (SGT)	Petty Officer, Second Class (PO2)
E4	Corporal (CPL)	Petty Officer, Third Class (PO3)
E3	Lance Corporal (LCPL)	No Equivalent
E2	Private First Class (PFC)	No Equivalent
E1	No Rank Insigna Private (Private)	No Equivalent

* - Marine Captain is occasionally confused with the fleet rank of Captain, and some marines prefer MCAPT over MCPT.