You have no idea how happy I was when I saw this, I was playing one of these campaign missions on day 1, and it was the second missions. Every elite or enemy we killed, had a chance to drop something it felt soooo good.
I was very happy as that was my favorite event of all time. the only event that i played it after it was already completed.
But after that mission I did not experience i again, is this a modifier? can they make it default to everything? I really really really love.
Thank you @FatsharkQuickpaw for this addition. Please thank whoever added this functionality. and can it be universal on all modes and maps.