Where is the best place to do this? Does it have to be done on the Dreadnaught? I tried it on the Cosmodrome and the kills did not register nor on the moon. If it has to be on the Dreadnaught where is the best place to find them or is there a story mission on the Dreadnaught where I can find them. Thanks. EDIT: It worked on the Dreadnaught, do the mission Enemy of my Enemy and go to left after spawn shoot them once or twice to lower health then mele worked like a charm.