The life as a solder you know Halo is about surviving but to what aliens and the flood or green sloby things, not to much humans to help you. Have you seen the movie Starship Troopers with Casper Van Dien and Denise Richards ,it has almost the same human technology. In Starship Troopers you have many humans fight, but in Halo combat evolved The Master Chief dosent have enought troops. If there is a war both sides must be equal if not its just a matter of time for the war to end and if theres a invasion you must be prepared you cant just send troops knowing its just a matter of time for them to die. Strenght comes in numbers and damm a waste of loyal and healthy solders in Halo Combat evolved.
Why have a high rank if you dont have enought privileges, if you dont have enought solders to die for you?