if you pre orderd it you can have him and play as him in firefight like me .....:P
Press the xbox guide button, then press left twice, where you will end up at the marcketplace slide, go to redeem code and enter your code, download, and enjoy endless Sgt. Johnson fun!
I am not exactly sure, but you can most likely check it up on a cheating website, such as gamewinners or cheat code central.
you type it in the xbox live marketplace "redeem a code" section
no only if you preorder
You had to Pre order it to get Johnson.
To obtain the activation code to unlock Sergeant Johnson for use in Firefight, you must of pre-ordered the game.
Play through the campaign levels on normal and you will be able to unlock them. The one firefight character you will not be able to unlock is Sgt. Johnson. In order to unlock him you will need to pre-order Halo 3 ODST.
Unlock Halo 3:ODST's Campaign Complete Achievement. Once you beat the ODST campaign, visit Halo Waypoint on the dashboard to unlock the item.
You unlock the odst armor by unlocking the UNSC SPARTAN achievement
Sorry you will just have to try to get it your self.=(
Yes
get all the skulls easily u can you tube it also u can play multiplayer online to unlock items getting halo ODST u can unlock recon by doing the vidmaster challenges in halo odst and halo 3
You need to preorder Halo 3 ODST and have the code on XBOX Live to get Sgt. Johnson
Halo 3 odst will be coming out September 22 09 iv preordered at ebgames to get sgt Johnson!!
There are many, because everyone who pre-ordered got one (well, most everyone), and if you didn't get a code, you can't play as Johnson.