User blog comment:144-Patient Appelant/Halo Reach Multiplayer Trailer/@comment-4791664-20100310024429

Err... many users already do write about Marines or Army Infantrymen. Personally, I haven't written a single story from a SPARTAN's view. On the note of playing as a Marine though, you must keep in mind... this is Halo, where almost every Covenant member species is capable of tearing a Marine to shreds without much effort. Gameplay wise, they'd have to make Marines equal to Covenant... which would then screw with canon.