[quote]I was wondering why the achievement will not be given out when you kill the three classes without dying. If they all have to be together that is really ridiculous. Just want a clarification from a Bungie worker to let me know the real specifics about this achievement/trophy.[/quote] They have to be at the same time. Its not really explained in the description. If u need achievement help goto true achievements.com or true trophies.com.