...that the first three Halo games happened only in three months, with Halo Combat Evolved in September, Halo 2 in October to the middle of November, and Halo 3 from November to December 2552, with its epilogue in early 2553?
Darkness is a Halo 3 advertisement released April 3, 2008 and runs for one minute and eighteen seconds (1:18). The trailer is a preview of the Halo 3Legendary Map Pack, which was released April 15, 2008. In the short film, there are introductions of all three maps in the map pack: Ghost Town, Blackout and Avalanche. The song "Beyond the Infinite" by "Udi Harpaz and the Tel Aviv Symphony Orchestra" plays throughout the trailer.
"I had a dream... But it was not all a dream. The bright sun was extinguished, and the stars did wander darkly in the eternal space. Reignless, pathless, the icy earth swung blind and blackening in the moonless air. Morn came, and went, and came... and brought no day, and men forgot their passions in their dread. All earth was but one thought, and that was death..."