Spartan Assault Achievemnts not recognized

I am trying to unlock “FOTUS” armor in Halo 4. I have Spartan Assault and Halo 4 on my Xbox 360. On my Dashboard it shows I have the “powered by MJOLNIR”, “prodigy” and “recruit” achievements on Spartan Assault. The problem is when I put the codes into Waypoint on my 360 it says I need these achievements. I already have them so now what. I’m just stuck.

Hi, Cspeedball. FOTUS came with the Halo 4: Limited Edition Console Bundle and cannot currently be unlocked any other way.