These are the current United States Marine Corps and United States Navy ranks. We follow the same ranking system that the USMC and USN has adopted. Please take note of all the ranks posted here.

Enlisted
E-1 Private (Pvt)
E-2 Private First Class (PFC)
E-3 Lance Corporal (LCpl)
E-4 Corporal (Cpl)
E-5 Sergeant (Sgt)
E-6 Staff Sergeant (SSgt)
E-7 Gunnery Sergeant (GySgt)
E-8 Master Sergeant (MSgt)
E-8 First Sergeant (1stSgt)
E-9 Master Gunnery Sergeant (MGySgt)
E-9 Sergeant Major (SgtMaj)
E-9 Sergeant Major of the Marine Corps (SgtMajMC)

Commissioned Officer
O-1 Second Lieutenant (2ndLt)
O-2 First Lieutenant (1stLt)
O-3 Captain (Capt)
O-4 Major (Maj)
O-5 Lieutenant Colonel (LtCol)
O-6 Colonel (Col)
O-7 Brigadier General (BGen)
O-8 Major General (MajGen)
O-9 Lieutenant General (LtGen)
O-10 General (Gen)

Navy Enlisted
E-1 Seaman Recruit (SR)
E-2 Seaman Apprentice (SA)
E-3 Seaman (SN)
E-4 Petty Officer Third Class (PO3)
E-5 Petty Officer Second Class (PO2)
E-6 Petty Officer First Class (PO1)
E-7 Chief Petty Officer (CPO)
E-8 Senior Chief Petty Officer (SCPO)
E-9 Master Chief Petty Officer (MCPO)
E-9 Command Master Chief Petty Officer (CMCPO)
E-9 Master Chief Petty Officer of the Navy (MCPON)

Navy Commissioned Officer
O-1 Ensign (ENS)
O-2 Lieutenant Junior Grade (LTJG)
O-3 Lieutenant (LT)
O-4 Lieutenant Commander (LTCMDR)
O-5 Commander (CMDR)
O-6 Captain (CAPT)
O-7 Rear Admiral Lower Half (RADMLH)
O-8 Rear Admiral Upper Half (RADMUH)
O-9 Vice Admiral (VADM)
O-10 Admiral (ADM)
O-10 Fleet Admiral (FADM)

NOTE - The Sergeant Major of the Marine Corps is also appointed only by the Commandant of the Marine Corps. Regular NCOs cannot be promoted to Sergeant Major of the Marine Corps unless appointed so by the Commandant.

Also note that the Warrant Officer ranks were not listed as they are typically used in Aviation and our main purpose is infantry based combat. If our Aviation department increases, then we will post the Warrant Officer ranks, but until then, they will remain off the website.

NOTE - The Master Chief Petty Officer of the Navy can only be appointed by the Chief of Naval Operations. Regular SNCOs cannot be promoted to Master Chief Petty Officer of the Navy unless appointed so by the Chief of Naval Operations.

Also note that the rank of Fleet Admiral is only available for promotion during the time of declared war. It is a five star rank and is held at high esteem and anyone under consideration for promotion to Fleet Admiral must have congressional approval before attaining the rank.
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At the rank of gunnery sergeant, after passing the standard promotion exam, the gunnery sergeant is presented with two different career paths. They may choose to be a master sergeant, who shall soon be a master gunnery sergeant or choose to become a first sergeant and be on the promotion track to a sergeant major. The distinguishable difference between the master gunnery sergeant promotion track and sergeant major promotion track is in their responsibilities with command.

The specific job of a master sergeant is a more technical one. They provide technical leadership to those under their direct command. Unlike a first sergeant, they are not in command of the whole of the enlisted men in their unit. They're only in command of those that share their job and responsibilities. This means that a master sergeant or master gunnery sergeant will be in command of a much smaller, more centralized group of Marines.

The job of a first sergeant/sergeant major is more command-oriented. They have command over the whole group of enlisted Marines in their company or battalion and must look towards their welfare 24/7. They must lead and inspire these men and advise their COs on how best to treat issues that are related to the enlisted men in his/her unit. Because of this, their job is seen as more stressful and more prestigious in that sense. However, in truth, either job is a prestigious one and each one comes with their own let downs, stresses, and high moments. In the end it is up to the individual Marine to decide which side of the totem pole they wish to take.