|Air Force||Army||Coast Guard||Marine Corps||Navy|
|9||45||O-11||General of the Armies||||||Admiral of the Navy|
|General of the Air Force||General of the Army||Fleet Admiral|
|8||42||O-10||General (Air Force Chief of Staff)||General||Admiral (Commandant of the Coast Guard)||General||Admiral (Chief of Naval Operations)|
|40||O-9||Lieutenant General||Lieutenant General||Vice Admiral||Lieutenant General||Vice Admiral|
|7||37||O-8||Major General||Major General||Rear Admiral (Upper Half)||Major General||Rear Admiral (Upper Half)|
|35||O-7||Brigadier General||Brigadier General||Rear Admiral (Lower Half)||Brigadier General||Rear Admiral (Lower Half)|
|5||25||O-5||Lieutenant Colonel||Lieutenant Colonel||Commander||Lieutenant Colonel||Commander|
|4||22||O-4||Major||Major||Lieutenant Commander||Major||Lieutenant Commander|
|3||17||O-2||First Lieutenant||First Lieutenant||Lieutenant Junior Grade||First Lieutenant||Lieutenant Junior Grade|
|15||O-1||Second Lieutenant||Second Lieutenant||Ensign||Second Lieutenant||Ensign|
|4||22||W-5||||Chief Warrant Officer 5||N/A||Chief Warrant Officer 5||Chief Warrant Officer 5|
|20||W-4||Chief Warrant Officer 4||Chief Warrant Officer 4||Chief Warrant Officer 4||Chief Warrant Officer 4|
|3||18||W-3||Chief Warrant Officer 3||Chief Warrant Officer 3||Chief Warrant Officer 3||Chief Warrant Officer 3|
|16||W-2||Chief Warrant Officer 2||Chief Warrant Officer 2||Chief Warrant Officer 2||Chief Warrant Officer 2|
|15||W-1||Warrant Officer 1||Warrant Officer 1||Warrant Officer 1||Warrant Officer 1|
|4||20||E-9||Chief Master Sergeant of the Air Force||Sergeant Major of the Army||Master Chief Petty Officer of the Coast Guard||Sergeant Major of the Marine Corps||Master Chief Petty Officer of the Navy|
|3||17||E-9||Command Chief Master Sergeant||Command Sergeant Major||Command Master Chief Petty Officer||Sergeant Major||Command Master Chief Petty Officer|
|15||E-9||Chief Master Sergeant||First Sergeant||Master Chief Petty Officer||Mastery Gunnery Sergeant||Master Chief Petty Officer|
|2||12||E-8||Senior Master Sergeant||Master Sergeant||Senior Chief Petty Officer||First Sergeant||Senior Chief Petty Officer|
|10||E-7||Master Sergeant||Sergeant First Class||Chief Petty Officer||Gunnery Sergeant||Chief Petty Officer|
|1||7||E-6||Technical Sergeant||Staff Sergeant||Petty Officer 1st Class||Staff Sergeant||Petty Officer 1st Class|
|5||E-5||Staff Sergeant||Sergeant||Petty Officer 2nd Class||Sergeant||Petty Officer 2nd Class|
|0||3||E-4||Senior Airman||Corporal||Petty Officer 3rd Class||Corporal||Petty Officer 3rd Class|
|2||E-3||Airman First Class||Private 1st Class||Airman
|1||E-2||Airman||Private 2||Seaman Apprentice
|Private 1st Class||Seaman Apprentice|
|0||E-1||Airman Basic||Private||Seaman Recruit||Private||Seaman Recruit|
 O-11 grades are reserved for wartime and as such are fairly rare
appointments. Since the Marine Corps and Coast Guard
fall under Naval command they have no O-11 grade. You may want to treat O-11 as
Rank 8 or as Rank 9, depending on your personal preference. Rank 9 is somewhat appropriate,
though, as it's a grade that can only be earned in wartime so has a certain
prestige to it.
General of the Armies and Admiral of the Navy are special ranks, collectively held by only three men - Gen. John J. Pershing was awarded General of the Armies in 1919 for his service in WWI; Gen. George Washington was posthumously awarded General of the Armies by Congress in the 1976 U.S. Bicentennial celebration for his service during the Revolutionary War; and Adm. George Dewey was awarded Admiral of the Navy in 1903, retroactive to 1899, for his victory in Manila Bay in 1898 during the Spanish-American War.
 The Air Force stopped appointing Warrant Officers in 1959. While a small number existed for the next 21 years, and the ranks still technically exist today, they are no longer in use.
 Warrant Officer 1 was discontinued in the Navy and Marine Corps in 1975. While it still exists in the Coast Guard it's no longer used.
 There is only one E-9 of this pay grade for each service, representing the highest ranking NCO in their respective services.
 The Air Force maintains two ranks at each pay grade E-7 to E-9 with the same title but different rank insignias and different pay scales.
 A case can be made that the highest E-9 and W-4 to W-5 grades should be GURPS Rank 3 or 4, though technically they may both be only Rank 3. Even so, the highest E-9 ranked NCO reports directly to the O-10 Admiral/General of his service, which is pull that even O-7 grade officers do not have.
The alternate cost represents a system of "partial rank" to fill in the gaps where the regular Rank advantage doesn't cover. These partial ranks include some extra responsibility, and extra pay, so have a slight bonus to them. They would also give a +1 reaction bonus from anyone of the same GURPS Rank who serves under you.