I was playing earlier, getting some bounties done and got a legendary engram. I thought "here we go again, another that will turn out to be blue" but it became an awesome legendary rocket launcher. Shortly after I picked up another purple engram from a chest on the moon which turned out to be a legendary auto rifle! Whoop whoop. Also, after 1 more strike tonight, I'll have enough vanguard rep/marks to buy 2 pieces of purple armour. Get in!