Ok guys, this is the most up to date ranking info:
Newbie - 0
Recruit - 3
Apprentice - 5
Private - 10
Corporal - 15
Sergeant - 20
Gunnery Sergeant - 25
Lieutenant - 35
Lieutenant - Grade 2 - 43
Captain - 50
Captain Grade 2 - 60
Major - 69
Major Grade 2 - 80
Commander - 95
Commander Grade 2 - 110
Brigadier - 125
Brigadier Grade 2 - 150
Brigadier Grade 3 - 200
General - 255
General Grade 2 - 315
General Grade 3 - 375
General Grade 4 - 450
1337 - 666