For some reason, I have this book on my shelf since 1993 and never got around to reading it. Everybody makes a big deal out of the fact that it's more than a comic book, it's got prose text in it. Dark Horse calls it a "Graphic Story Album"... let's face it, it's short story-length and is illustrated. It's not a comic book, it's a short story.
And fitting the format, it's got a limited cast, about 9 characters, 7 of which are part of a special "cleanup" team who specialize in locating and dismantling alien hives. The other two characters are a doctor and a nurse inside TodLab LXI. There are lots of bodies around as the aliens have infested the medical station by the time our protagonists arrive. There's some suspense, some scheming, and some action, and not everyone will make it out alive.
Steve Bissette is well-established horror writer, and his writing skills shine here. It's a very entertaining story, plus the 24 beautiful illustrations by Dave Dorman are worth gazing at. One of his characters is Mobile Offensive ExoWarrior "MOX" 16 nicknamed Shitkicker. This concept of a "Berserker" human pumped up on stimulants and encased in an acid-resistant, multi weapon robot armor will be used in later Aliens comics.
As far as chronological placement, there are not many clues as to when this story takes place, aside than it is in the couple of decades between "Aliens: Female War" and "Aliens: Genocide", and this quote from Lt. Tsuruku Richards: "It took the corporation two decades, three colonies, and many lives to realize the folly of nurturing these creatures."