When you first see the Awoken - with their muscular physiques, perfectly styled and colored hair, and flamboyant attitudes, one thing comes to mind: these Guardians are going to defend Earth at all costs. That's it. What else would you possibly think?
Oh, okay, that makes sense - they're basically Spartans, the Darkness is basically the Covenant, and the whole game is basically Almost-Halo-But-With-a-Magic-Loot-Cave.
Poor Master Chief.