So I beat Bioshock last saturday. I then started getting the achivements I'm missing( the 53 tonic, the radio messages ). I went back to the first stage to look for them. But while I was looking around I noticed a locked door that needed a special key from a doctor . I looked all over the place for it (even in the dead corpse of Steinman) and still no key. I want to start it in Hard, but I want to know witch AC points I'm after so I don't waste my time. So I need to know where that key is at.