Not sure if this is any help, but on 09/20 cozmo ( the community manager ) had participated in an event that is classified. Even the location is classified. The illustrations for the event looks like it takes place in one of rasputins facilities. May this will be help to solving the equation to our mystery gun. Edit: After further investigating the play history i've noticed that he played cayde-6's stash mission 30 minutes before entering the said event above. During cayde's stash you can find a hidden room where you scan a jack of spades. Cayde refers a few weapon manufacturers to certain suits, and when he gets to hearts he says it was for a girl he new. It peeked ghosts interest as it did mine. Could this girl be the sleeper simulant? Are we to find this secret stash with a heart card somewhere?