He actually is incorrect. Now that you get a guaranteed reward of 2-3 engrams...The 10% chance on killing 20 mobs with a 1% chance of a legendary, probably less actually, isn't worth the time. - It actually isn't. I received 2 legendary engrams as rewards for completion last night...Many blues. Only had 1 blue drop in all 4 strikes from a mob. It's random chance vs a guarantee. Statistics don't lie. That guarantee is > a random chance, every single time. Just sayin.