[quote=Kyoukari]
Just one bit of clarification, what is the current state of Rapture? Pre-fall? Post-fall? What have I got to work with?
[/quote]

This is something that can be adjusted in the future, but in the past when I did this roleplay we decided to go pre-fall (right at the start of the civil war). So if you wish to keep the Big Sister character, then you can claim her to be the first big sister experiment done by the scientists and factor her in that way.