How much dialog does one need to comprehend how it works? The story sequence wanted to create a bond between you and your father and the people you needed to abandon when escaping. It failed miserably. The few lines you had with the "important" characters wasn't nearly enough to do what it wanted to do. It managed to give an idea of what was going on, but it was like an incomplete scrapbook trying to create a perspective and an affection. Nothing to tell you about your father whom you supposedly got to know for 19 years, and the same with all the other character at the vault. They were still complete strangers when you left. And once out of the vault, there was little more incentive to follow the story than knowing that it won't get completed unless you do complete it. And having said that, I did like concept behind the opening (being born and raised in the vault, and suddenly needing to leave); but the execution of it was horrid.