Star Wars Zero Company Is Missing The Only Achievement I Wanted

Star Wars Zero Company released late last month, and it became one of my favorite games of the year almost instantly. I recently finished it, and while I was very satisfied with how it all wrapped up, there was one thing--a certain achievement--that was missing, and it filled me with arage I can only satiate by complaining about it online.
You see, like the XCOM series it took so much inspiration from, Star Wars Zero Company features a permadeath mechanic. With the exception of main protagonist