Advanced Packs become supply packs after everything reached level X

Just want to point out that if you're trying to make it faster to get (ultra-) rare items, then don't do it by my way. I've unlocked every bronze and silver weapons, characters and mods. I thought, hey maybe I can replace the expert packs with the advanced packs, but I was mistaken. After you unlock all the silver and bronze items, then they just become supply packs (most of them, but it's still a waste of creds). "Small chance on rare" 😞 😞 😞

Welp, now a hundred and fifty ultra rare items to unlock in a proper way ☹️

(At least I have eliminated every common and uncommon items hehe)