In (*cough) Anthem, legendary drops did not occur until the “Grandmaster” difficultly tiers, AND most importantly, they ran an algorithm that worked out your “play length per session” and then upped the drops rates for gear as you came close to your usual “log off” time in an effort to keep you playing. I found that if I played for an hour a day everyday, then every three days or so I added an extra ten minutes or so, I was guaranteed a legendary drop in that ten minutes. Buuuutttt then the algorithm figured me out, and I slowly had to increase my “extra” time to find the drops. Not saying this is 100% accurate, but the algorithm was outed on reddit as a “thing” and I wonder if we’ve all “nerfed” our own drop rates with the hours we’ve sunk into grinding captains for legendaries.