Anniversary Campaign Trailer
From Halopedia, the Halo wiki
Capt. Keyes: "Unprovoked, it brought our civilization to its knees and forced us into hiding."
Capt. Keyes: "And now, chased into the darkness, we have one chance for survival, one chance that carries the hope of our entire species, and has lead us here."
The UNSC Pillar of Autumn is shown lifting off from Reach and departing. Later the arrival of the Autumn at Installation 04 is shown.
Several cutscenes and gameplay from the campaign along with dialogue from the levels are shown and heard.
A few cutscenes from the terminals are shown and the screen fades out.