It was an Oni Gauss Turret Certification along with 3 Oni Gauss Turrets. Glitch? I thought Silver packs were strictly Rare and down, but hey, I’m not complaining.
This just means you’ve finished silver (almost) there’s a purple emblems and then you’re done.
I thought it was guaranteed at least an uncommon, with just a chance at higher level unlocks.
You hit the chance.