I abandoned the arsenal of oddities quest to try to re-acquire it, since my friends don't have it. I told them to talk to Banshee and Ana to try to get the quest but it didn't show for them. Which is why I abandoned my quest to try to help them out, I went to Banshee and Ana to re-acquire it but they didn't have them, so I went around and talked to everyone on the Tower and the Farm but none of them had it. I restarted my game as well to see if that would help but it didn't would either. I also went to Io to try to find the taken boss that opens the anomaly but it never spawned. I've tried everything I could think of to solve it on my own with no luck, so I'm coming here to see if anyone else or Bungie themselves have a solution. Edit: Nevermind looked through the forums and that quest was for new players, hence why my friends didn't have them, and I waited around for the taken and he spawned.