Hmm well when I got this game back in early October I was on a mission on mars maybe it was a strike the one with the flairs or whatever there called there's this purple sign thing that flashes and for some reason maybe lack of sleep or just all around noob lust for my first legendary engram I swore it was a legendary engram and I was spazing out whooping and hollering till my bro comes in and asks what I'm on about to which I replied I finally got a legendary engram to which he says bro that's just a light... To this day I hate that light xD