List of Halo Reach Ranks!

Recruit
Private
Corporal
Corporal grade 1
Sergeant
Sergeant grade 1
Sergeant grade 2
Warrant officer
Warrant officer grade 1
Warrant officer grade 2
Warrant officer grade 3
Captain
Captain grade 1
Captain grade 2
Captain grade 3
Major
Major grade 1
Major grade 2
Major grade 3
Lt. Colonel
Lt Colonel Grade 1
Lt. Colonel Grade 2
Lt. Colonel Grade 3
Commander
Commander grade 1
Commander grade 2
Commander grade 3
Colonel
Colonel grade 1
Colonel grade 2
Colonel grade 3
Brigadier
Brigadier grade 1
Brigadier grade 2
Brigadier grade 3
General
General grade 2
General grade 3
General grade 4
Halo reach secret ranks
Field Marshall
Hero
Legend
Mythic
Noble
Forerunner
Reclaimer
And the highest rank
Inheritor