Trussingdoor is pretty kewl. He fires lasers and doesn't afraid of anything.
Posted by: RotaryCookie
First off, I would imagine tens of millions of soldiers took part in the Battle of Earth, not just 100,000 or so.
Secondly, the ships that hadn't been destroyed already were next to useless against Truth's fleet. While I agree that the UNSC could have deployed more corvettes and frigates to support the ground forces.
That said, Forward Unto Dawn couldn't of carried all the equipment that you see when your on the Ark meaning that UNSC ground forces were either deployed aboard Elite ships, or more forces were deployed behind the scenes.
It also seems as though the UNSC Marine Corp and UNSC Navy are running very thin as of 2552. While UNSC Army ranks seem full, throughout the games we see the same Marines repeatedly (Johnson, Stacker, Buck) it is likely that all the availible Marines, i.e. the offensive branch, were deployed to the Ark.
I think they just kept Stacker and Jhonson because they're funny as hell... the writers did, I mean. Cannonically you have a point.