I am attempting to do the catalyst run for Buried Bloodline. I have the weapon. My fireteam consisted of two others...one has the gun/catalyst, one doesn't have the gun or the quest completed. Once we got released from cells after first boss, the thing that you shoot to start the catalyst wasn't there. We tried resetting several times and couldn't figure out why it wasn't showing up. We tried doing it with just me and the person who has the gun/catalyst and it wouldn't show up. We tried doing it with just me and the person who didn't have the gun/catalyst and it didn't show up. How do I do the catalyst run? The thing to shoot just isn't showing up.