They should have made a Halo game where play as a normal marine, fighting with normal marines.
That would be boring and hard as stuff, the Marines are simply not powerful enough to effectively take on the covenant unless they vastly outnumber them (the ODST had trouble engaging too). Imagine playing Halo 3, except you can't jump, you move slower, you die almost instantly, can only use small arms and carbines (no Covenant weapons training mind you), you're around 3 feet shorter, no shields, and half of your teammates get obliterated in the first 5 minutes of the first chapter. It ain't CoD where it's humans fighting humans, you're fighting a vastly superior alien race hell-bent on your destruction, and even as a marine, your only hope is that 8-foot metal-plated killing machine.
