Confusion about leader rank in editor

[jp10]

Greetings again,
I am trying to create a specific force in the editor and am bewildered by the system to change rank names. I know by searching and reading the forum post that the rank names are cosmetic and are influenced by the OOB, but my confusion is in the typing in of numbers in the unit leader editor.
I am using the RED force for a non-included nation in the game and need to have UK style ranks. While RED seems to have Eastern European ranks as default, I can type in numbers and get different ranks but there seems to be no order. I even typed in the number '5000' and got a rank. As I type in numbers it seems to change nation but not in numerical order. I have found numbers that give me 'General'(10) and 'Corporal'(1) and have been as high as 133 till I yelled "By Grisby, all is lost!" and came here to post. All I really need is Sergeant, Lieutenant, Captain and General, to make me happy and leave you fine folk alone, (for now).
I am thinking of putting the scenario up on the forum when finished so I do not want to alter my rank files but I am using real life leader names and I am sure somebody will 'sharp shoot' me on it if I use 'Grand Pooh-Bah' instead of Captain.
Can anybody help a dude out?

UPDATE*** Silly me! I apparently just did not type high enough. Almost two hours later I got to 710 and found 710-720 has UK style ranks that will work. (Curse you Grigsby!)!!!
Still, if anyone can explain this system, I would appreciate it. Maybe I'll make a chart or something.