I somehow managed to get a quest about raiding the armory before I had the DLC, so I go in there for the final mission and low and behold, the quest I picked up activates (the super-marcus sweep one). So it blew up without letting me hit the button. Now I'm locked out, what the forget. I need someone to tell me how to break in, or if someone is on the final mission for the Secret Armory DLC, to let me join so I can complete that last part.
forget this was supposed to be in games.