There is one thing on my mind about Walker rescue mission now.
When introducing ourselves to Amanda she interrupts us and asks about Harris. Obviously, she would know who was the engineer assigned to the mission, but would she care specifically? Her abruptness makes me think...wasn't her reaction akin to someone whose plan just got a complication? She didn't ask about anything else.
Why was Amanda in such a rush to get back? Why not try and track the ophions that ran off? For a first contact encounter she didn't seem all that thrilled to follow up on it. Could it be that it actually wasn't first encounter? What was she doing in that old station anyway?