jet pack in haloi reach is an armour ability piick one up or spawn with it.
No you are thinking of Halo Reach.
No, this is only a feature for Halo : Reach
The noble map pack.
No, your game has a glitch.
You buy the map pack at marketplace or buy halo anniversary
there are three
You can't. Legally, anyway.
Ebay
Defiant Map Pack
March 2011
No, I'm sorry but you cannot spawn computers or laptops in halo reach. You may be able to on some of the Noble Map pack or Defiant map pack maps as I have not played them, but I doubt it as well
Two multi-player map packs. Noble Map Pack and Defiant Map Pack