Halo 4 Any way to get early Specializations?

If there any Way to get early code for the 6 Specializations on Halo 4 because i reach my limiting on all 3 Specialization on Wet-work and Operator on Halo 4 by playing Multilayer and Spartan op and Love the game by the way, but 343 if you have early Code plz send them to me Thank you, I’m Appreciate.