The Gods of War

We are the masters of war.
We fight to the last man.
We sacrifice all, for all.
We will save you from the combine.
We sacrifice our lives for others, and take all with us.
and We are the Crowbar Rebels.


Ranks -
General
Colonel
Major
Captain
Lieutenant
Master Sergeant
Sergeant
Corporal
Private


Know your Enemy[half-life.wikia.com]
Ranks[forums.bungie.org]