At the end of the first Halo, the heroic and iconic Master Chief John 117 took off his helmet just as the camera panned away into space. With that, Bungie cemented seeing the Chief's face as a "thing"—something that would forever be teased, and likely never revealed.
But guess what? Bungie ain't in charge anymore. And beating Halo 4 on the highest difficulty (Legendary) finally reveals a glimpse of John's grizzled mug—even if it's just those steely eyes.
We didn't include an image of it, since some people might want to earn it for themselves. But suffice to say: it's…a face.