
Originally Posted by
darthkiwi
As far as I can tell, Ken Levine said that LS were the only source of Adam. So, the only way to get Adam is from a LS. In order to get it, you have to fight a BD.
But, once you've killed the BD, you have a choice of whether to harvest (ie. kill) the LS for a big, juicy chunk of Adam or save her (make her normal again?) for a smaller chunk of Adam but another, less immediate reward. (I think there's talk of extra plasmids or something.)
So, to answer your question, yes you do have to fight the BDs, and the main moral choice in Bx is whether or not you exploit, or help the LS.