New secret BioShock achievement

New secret BioShock achievement that was recently revealed, but now GamerTag Radio is claiming to have found more details on just what you’ll have to do to unlock it. According to them, after much forum scouring, the secret achievement goes like this:
Bullet proof - Complete the game on Hard difficulty without using a Vita-Chamber.
BioShock isn’t exactly the most difficult game ever, but not dying once? Little trickier. And there are a lot easier ways to get 100 extra Gamerscore points. Well, I suppose it could be done a bit easier if you just re-load the game every time you die. Of course, this could all just be fuel from the internet fire trying to dupe people out there into trying it. It certainly wouldn’t be the first time.