I can't unlock anymore items

Hello 343 my GT is DARK SHOT 113 and my email is terrywchasejr@yahoo.com. I just wanted to contact you because in Halo 5 all I need is to unlock two more helmets and armors, but all I get from gold packs now is just 6000 req points and weapons I’m not sure if this is supposed to happen ,but I have been unlocking an insane amount of req packs I’d say I unlocked twenty so far and this has been happening. I feel like it’s bugged and I can’t unlock anymore items is there a way to fix this. I even bought the twenty dollar bundle and still nothing. Please help!!