Like I said, I haven't read the book and have just flicked through so I may be mistaken on some details, but it seems massively different from what I was expecting. Considering we've had so many stories about the Company trying to find a xenomorph specimen over a span of 300 years, within the opening chapter the marines have a dead Predator for study, and the way they reference it so casually implies this is not the first time they have had such a body.
The Predators are referred to as Yautja all throughout the book. Never once are they called Predators, or Hunters, always just Yautja. As I said; the humans have a translator that help them understand their language, so be prepared to see lots of Predator chat in this one. For example; "I am Hishori of the Widow Clan." I just can't take it seriously, and I mean no disrespect to those that like the Yautja concept, but I just don't want to see Predators talking and demystifying themselves. They should be silent, honorable and carry that air of mystery, just like the films.
The cold war aspect I referred to is essentially an uneasy truce between the human sphere and Yautja controlled space. Humans monitor Yautja communications and likewise the Yautja watch the humans.
Spoiler
The weaponised Aliens are all marked and are very reminiscent of General Spears and Nightmare Asylum. They seem to be controlled by a faction of Androids that are related to 'The Founders' and the way Liliya steals the research in the opening chapter is a foreshadowing of this. As far as I can tell, the Dog Aliens from Out of the Shadows have no involvement.