Master Chief and Cortana get in the Pillar of Autumn as the rings are activated and start to go through the Ark. While going through, The half of the Pillar of Autumn (POA) that the two are on is more or less "chopped off". Master Chief tells Cortana "Wake me when you need me" and goes into cryosleep.
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On Earth the Arbiter and the UNSC hold a funeral for Master Chief declaring him MIA (Missing In Action).
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Now for the Legendary part, the half of the ship that Master Chief and Cortana are on are seen floating towards a blueish planet with some lights (probably cities) and a star behind the planet.
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As for which planet that is quite a debate. Some said planets are...
Reach
Forerunner world
Covenant homeworld
Flood homeworld
Onyx
Marathon
Harvest
There are many more but these are the most common ones.
Anyone who can add please do.
I don't think that Halo 3: Legendary Edition is a game.
you have to complete halo 3 odst on legendary, have xbox live and complete halo 3 on legendary
In a forerunner planet called Requiem.
It is the planet Onyx from the Halo books. Many severely injured or alive SPARTANS are supoosed to be on this planet.
It does not come with Halo: Combat Evolved or Halo 2.
No you still die at the end.
If you play legendary you have to kill the Easter egg grunt at the end of the game and then jump 3 times and then your in a hornet!
you complete the level halo on four player LIVE, on legendary, with the iron skull on and one of you has to jump into the hanger at the end in a ghost. note that only one vehicle can jump into the hanger at the end.
The halo 3 legendary edition is one of the editions of Halo 3, those being Halo 3 Standard Edition, Halo 3 Limited Edition, and Halo 3 Legendary Edition. The Legendary Edition comes with the game itself, a model of a spartan helmet, (the main character, Master Chief, is a spartan) although it can't be worn. It also comes with a poster, and 2 DVDs which have a lot of content.
Beat the game on legendary
the level: Cortana on legendary
depends on your skill