You only need to enter the first (larger) 25 digit string of numbers and letters listed in the center of the sticker inside the box. Disregard the smaller digit string in the lower corner of the sticker.
The install code is: MM6LP-ASGAF-N4T5A-VJ9TV-MRCTE
* Please note that this key can ONLY be used on the US retail version of the game. This key is not valid for the digital download, or European versions of the game.