Where do i put the code in for halo 3 odst?

[Clarence Magpantay]

I pre ordered Halo 3 ODST and i got the Srg Johnson thing but i have no idea where you put in the code please some one help

 

[Mean Bean 92]

U put it in in the same place that u put the xbox live codes just push the center button and go all the way to the left and click redeem code. then just put in the code