I know alot of you guys have been asking about the Specialization codes you were supposed to of recived. I bought the Limited edition of Halo 4 so to everyone who bought the Limited Edition you already have the Specializations. There are 8 (including) Spartan IV. Now for the people that bought the Standard Edition, you will recive a code in your email with the code for the specializations before November 30th. Now remember I myself don't know if this is confirmed, but it's what I've been hearing.
I hope this helped you guys, If this was posted before I will not take any credit for it.
ySmokey