In mission 1, find and access Chief's record. - Halo 4
Change your Emblem in the Spartan ID card. - Halo 4
Change your Service Tag in the Spartan ID card. - Halo 4
126/4,205110/2,00011/86
358/4,352230/1,10019/55
196/4,640110/1,64011/80