Mission: fist of Crota. I´m on the very beginning, taking headshots to progress to the 100-precision bounty from the Vanguard and the one from Eris. Aiming down the sights of my Scout rifle, I see a purple ball shining at my left. I think "OH SWEET! A LEGENDARY ENGRAM!". I take the sights off and run towards the Engram. It wasn´t an Engram. It was an energy shot from the Fallen Servitor that appears over a platform, I practically ate it. I´m sure all the Fallen dropped their guns while they ROFL´d on the ground and Omnigul was probably shouting "HAHAHA N00B" from over the hill.