I've done the Tree of Probabilities Strike almost 100 times over the last few times it's been the nightfall but i never got the D.F.A so far. What's up with that? [spoiler]Moderator edit: This thread has been moved to #Feedback forum so that other Destiny players can weigh in.  [url=https://www.bungie.net/en/Forum/Post/139533839/0/0] See Cozmo's thread here[/url] for more information about the #Feedback tag and its uses. Feel free to private message the moderator who moved your post, link to topic for further clarification about why this topic was moved.[/spoiler]