Then it is a mistake since the guide (at least the collectors version) explicitly has both 'become a reaper' and 'control' as separate possibilities. I've been trying to figure to figure this out, but it's almost like no one even noticed. Thanks for the prompt answer.
^ You're talking about the Prima guide, right? I've got it, and in the breakdown of the different endings it's pretty clear that "become a Reaper" means "pick the Control ending", since the only other choice available is to destroy the Reapers or create synthesis; the Refusal ending isn't taken into account for obvious reasons. And you're welcome :D Terminator-HIX (talk)
Too bad, I was looking forward to saying 'screw organics, I'm gonna be a Reaper!'. Then Earth goes extra crispy, the end. :P