I have seen this theory before... Not calling bs but just pointing out, I'm terrible in the crucible. Like 1 kill and 14 deaths terrible and I have never gotten any loot from crucible matches, the only time I go there is when I have exotic weapon bounties.
With regards to weapon choice, when I first saw this theory I switched from a scout rifle to an auto rifle. To this day I have received 3 legendary engrams and one exotic chest piece from a night fall along with one exotic weapon from the raid.
Again I'm not calling bs just pointing out this theory didn't work for me
I think i have found a total of 5 various legendary and 1 exotic rockets. It really slowed down after the loot patch a couple months ago. I have paid for everything i use in my inventory. You got your faction rank up?
No faction rank, just vanguard .. Also I should clarify my exotic price was an end roll after a night fall completion I've never seen an exotic engram...