The Master Chief is back. So are the Battle Rifle, the Elites, the Grunts, the Jackals, the… wait, what the hell are those things?

There's a new enemy in 343's Halo 4, and we really don't want to ruin the surprise for you. There are also new weapons, and even special visors—the one in the video appears to grant Mr. Chief thermal vision.

So just go ahead and watch the footage, then leave your thoughts in the comments or on Twitter. "An ancient evil awakens" on November 6.