i was doing the above episode this morning, when i got to the bridge of the Dewitt, and took out the bridge crew, i found that the captain was bugged. you talk to the capt, and he refuses to give the codes, you are suppose to repeat the process of attacking him and conversing with him untill he divulges his info, well. after the second beating, he is no longer interactive. he stands there and nothing happens, one time even he disappeard from the ready room.
i sometimes wonder if cryptic intentionally breaks the game just to irritate the masses.