You can't, but if you have internet and a free gold membership trial,you can use the trial to get the recon armor, it does work for Halo Reach too.
you have to get xbox live,(you need to preorder halo reach!)first, go to the halo reach menu ,then press the middle of the controller ,then go to redeem code ,type in the code,when you are done go customize your person and enjoy!
On the inside of your copy of halo reach there should be a card on the inside that has a picture of the recon helmet and it says HALO REACH bonus content Request: helmet upgrade__Type: "RECON".If you don't have xbox live (gold or silver) the card is useless to you. On the back of the card there is a tab you need to tear off, so now there should be a code on the back where the tab was. Then press the xbox guide button (round silver button int the middle of the controller). go to the marketplace tab. select redeem code. enter the code. let it download. then go play halo reach and it will be in the armory.
go to redeem code on the dash board its under marketplace I think you have to have xbox live.
bungie does not host the file. bungie quit halo you have to get it form the live marketplace
Go to game marketplace, go to game add-ons and look for Halo Reach. You need to be with Xbox live if your not.
go to bungie and download the map WHILE YOU ARE SIGNED IN TO BUNGIE.NET and you will get a message after the download on the computer that it will be downloaded when you are connected to xbox live and in halo reach.
YES you do. BUT you can use XBOX live silver which is free or XBOX live gold which you must pay for.
Yes, you need to be connected to the internet (Xbox Live) to enter in your recon code, legendary codes, ect.
No, going on XBOX Live with an illegal copy is easily detectable and will get you banned from live.
No, each code used to unlock something on Xbox live is only one use.
As of now the Halo: Reach beta is gone, your not going to be able to.