unfourtuneatly there is no answer to this question maybe in a halo book but otherwise no one knows
none, it is a game silly
Go play the game yourself, or search Halo 3 Ending on youtube.com
All of them are dead but the spartan 117. In Halo Reach you go back to a time when there were many Spartans but these Spartans are not as complex as the other ones.
There are 10 weapons in Halo CE. 6 UNSC\Human weapons, and 4 Covenant weapons. There are also 2 grenades, Sticky and Frag.
Human beings - if they survived - would be in a less advanced state than many other animals.
halo,halo 2,halo 3,halo3 ODST,halo wars,halo reach
There are 6 Halo games: Halo, Halo 2, Halo 3, Halo ODST (Orbital Drop Shock Trooper),halo wars, halo reach. you for get halo battle evolution
im not sure how many they ARE going to make but so far there's halo 1,2,3,4 halo wars, halo ODST, halo: Reach, halo anniversary, and more coming
many worlds
The first Halo game, Halo: Combat Evolved or Halo: CE is about 600MB.
As of the time of typing the Halo series has had the following games Halo: Combat Evolved Halo 2 Halo 3 Halo Wars Halo 3 ODST Halo Reach Halo 4
Currently 5 with an upcoming 6th in late 2010 Halo: Combat Evolved Halo 2 Halo 3 Halo Wars Halo 3 ODST Halo Reach