he trailer opens with a powerful orchestrial piece, showing a desolate and dry desert area. The area that one sees is the remaining rubble of New Mombasa, which was destroyed in Halo 2, with part of the broken space elevator as well as the obliterated new mombassan bridge in the background. Through the smoke and rubble of a ruined building Mast Chief emerges, obscured occasionally by overlaid transmission images of Cortona who utters somewhat distorted messages:
"I have defied gods and demons."
"I am your shield, I am your sword."
"I know you; your past, your future."
"This is the way the world ends."
Cortana's line use a constant syllable count (all lines have eight syllables except the last; it has 7). Fans have speculated that the voice of Gravemindcan also be heard, mirroring Cortana's words, leading many to believe Gravemind plays a part in Cortana's speech, possibly even speaking through Cortana to the Master Chief. Another possible explanation is that the transmission started off with heavy distortion and corruption. This is evidenced as the transmission improved drastically with each attempt of communication.
Notably, the Master Chief is seen holding what appears to be an MA5B Assault Rifle from the original Halo, which was not included in Halo 2 The rifle also appears to have received some minor visual modifications and perhaps a complete rehaul from the original. A Bungie employee has stated that, "It doesn't look like an assualt rifle, what makes you think it is one?" hinting at a whole new weapon. He is also wearing new gloves which may be part of new Mark VII MJOLNIR armor (The armor also appeared slightly different).
Overhead, a massive Covenant armada (the excavation fleet as said by Bungie) holds position over an enormous crater where the Chief is currently overlooking. The crater contains an expansive metallic structure, over 3 miles in diameter, stated by Bungie to be a Forerunner related structure. Whether this is the Ark or a ship similiar to the one the Prophet Truth took to Earth at the end of Halo 2 is unclear, although it bears a striking resemblance to the ship's interior.
Above the crater, there is a massive maelstrom in the sky caused by "massive, never before seen subatomic forces" proabably eminating from the gigantic domed structure. Banshees and Covenant warships fly by, but pay no attention to the Master Chief. The camera then switches from the crater to the cliffs as a part of them fall and then zooms in onto the Master Chief's visor.
The camera turns from a glowing reflection on the Chief's visor and zooms out, revealing a grandiose scene as the mysterious structure is awakened. The structure begins to unfold, similar to a blooming flower, and rises above the ground as Covenant ships reverse direction and speed away from it. The device emits an energy pulse into the funneling skies as the trailer ends with Cortana stating the last line, "This is the way the world ends." This refers to the first letter from "Cortana's Letters", which preceded the announcement of the first Halo 2.You may also notice an accent on the "this" as if she is rejecting T.S Elliots famous quote from his poem, The Hollow Men.
This is the way the world endsNot with a bang but a whimper.
The trailer was produced entirely using the Xbox 360 hardware in real-time. After the E³ showing, Bungie demonstrated the real-time nature of the demo by moving the camera around and moving Master Chief to demonstrate the game's visual effects.
The music in the trailer utilized a 60 piece orchestra and a 24 piece choir. On Bungie's site, composer Marty O'Donnell states his goals for the trailer's music.
"I want them to feel pride and longing the moment Master Chief walks out of the smoke, I want them to get excited and perhaps even froth at the mouth when they see the Covenant Capital ship and then the incredible buried artifact. I want them to be left with that, 'I can hardly wait to play this game' feeling by the end with a slight, 'I wonder what she meant by that' aftertaste."
Confirmed Facts
* According to Bungie's statements about Halo 3, Master Chief and Cortana are still separated from each other. This is evident in the teaser trailer.
* According to the Bungie website, scenes in the trailer are mixtures of different scenes and animations from the actual game, which include the space elevator wreckage that Master Chief walks through at the beginning of the trailer.
* The Bungie website also alluded to "a devastated and Covenant controlled Earth", and the fact that something buried underneath the surface of Earth will play a major part of the story. This most likely refers to the Forerunner object shown rising out of the valley in the trailer, presumably the Ark
* Master Chief carries a graphically updated version of the original Halo: Combat Evolved video game's MA5B Assault Rifle.
* Bungie revealed that the game would have a new "materials system" so advanced that "you could see light reflect off the ground and onto his armor. A new materials system shows the difference between his armor and the rubber undersuit. It's so detailed that if you bring the camera close to the Master Chief's visor, you see everything in front of him reflected in it, right down to the ammo counter in his rifle" . In addition, there would be new advanced texturing to reflect permanent, persistent damage.
* In the trailer, Master Chief's Mark VI armor is battle-worn and laser-scored. Developer Marcus Letho's response: "The Chief is shown as warrior who has seen horrific battle – and it shows. The Earth is dry, barren, ravaged by the Covenant."
* Halo 3, as Bungie has stated, will be the last game of the Halo series. "Bungie announces Halo 3, the third and final game in the Halo Trilogy". However, it should be noted that in a FAQ on the official Bungie website it says, "Q: Is this the last ever Halo game? A: It is the conclusion to this story arc." This leaves open the possibility of future Halo games.
* With the release of the trailer Bungie has declared publicly that Gravemind, who originally appeared midway through Halo 2, is an intelligence of Flood origin.
* Bungie refused to deny or confirm whether the Elites and their followers (Grunts & Hunters) are allied with the Humans now, due to the rift developed between the Prophets and the Elites in Halo 2.
* Bungie has confirmed the following basic plot points from what the teaser trailer revealed: Master Chief is back on a throughly conquered and controlled Convenant Earth. Cortana is still a prisoner of the Gravemind. Finally, the Covenant ships are hovering over an excavation site only a couple miles from Mount Kilimajaro
* Bungie has also stated that the rising structure seen in the trailer should be familiar to Halo fans.
* The Master Chief from Halo and Halo 2 is confirmed to be the Spartan in the Halo 3 trailer. With many people claiming it isn't, Bungie has stated it is in fact Spartan 117, and have yet to release any information on the whereabouts of Will, Fred, Linda, or Kelly.
* The surface the trailer takes place is in fact Earth (more sprcifically, Africa).
* Halo 3 and the Halo Movie will not come out at the same time. "The two will not affect each other in terms of release dates."