Prestige shop

In MW3, players who prestige will get to use a new feature called the Prestige Shop. In past Call of Duty games, you were awarded an extra custom class slot whenever you hit the prestige button. However, this time around, you will have a selection of goodies to choose from.

Extra Custom Class
This will basically give you an extra custom class slot. As mentioned before; this has been the standard award for prestiging in previous Call of Duty games.

Reset All Stats
This is an interesting award. This basically allows you to reset all of your MW3 statistics. So, if you feel as if your KDR is lacking or that your WLR could be better than it is, this award will reset everything back to zero. It is currently unclear whether or not this will send you back to the level you were when you first started to play the game.

Double XP
This will give you Double XP for 2 hours. This award will be for those who want to get to the top prestige much quicker. However, by using Double XP, the player will be giving up awards such as extra class slots.

Double Weapon XP
Double Weapon XP will give you the ability to unlock attachments and camos on weapons much more quickly for 2 hours. 

Unlock Gear
Unlock Gear allows you to unlock a gun/perk etc from the beginning. For example, Dead Silence is unlocked at Level 56. If you wanted Dead Silence from the beginning of your prestige, you can use a token to unlock it.