User blog comment:Garhdo/Omega: First thoughts/@comment-4220180-20121128152304/@comment-1440333-20121128202711

No Wrex and Aria was never confirmed, unlike some other implied connections. As for Nyreen and Aria, it is clear they have history and both friends and adversaries, know each other very well, were once very close, and Aria does seem affected by Nyreen's death. I felt it was enough.

It would have been good if the Adjutants had turned into the main threat, I agree. The mechs were very different to Dragoons though. As for Nyreen's fear of the Adjutants compared to Shepard and Aria, she explains that they went rampant and attacked a great many people. She is probably not as strong as Aria (less life experience perhaps) and has lost a lot of friends to the Adjutants. She has been exposed to them for months, after all, so more fear would make sense.