By gaining XP
it comes with halo 3 ODST
No. You have to play on ranked, or social matchmaking.
get a new halo 3 disc
You have to get achievements when you playing with a Live account.
The first one
no no
No. You can not be "Halo" in the Halo Series. You play Master Chief in Halo: CE - Halo 3. You play as Noble in Halo: Reach.
level up to an officer ranlk in any playlist, its not unlocked by global rank.
Cortana =]
Snowbound.
Sorry to tell you but... She got shot with a Spiker at the end of the Halo 3 Level, "The Covenant."
In Halo 2 you super jump by going on the space level and going up to the edge of the pillar and jump and it should work its only worked for me twice its hard to do I can also tell you how to do it on halo 3