It was cool seeing Detective Schaefer again after all these years and finally getting a first name, not to mention Ligachev! I knew ahead of time that the former was returning, but I had no idea she'd be back too, so that was a cool surprise since Cold War was one of the first Predator comics I ever read back in the day. I do think that another issue would have been nice as people have said, since I would have liked to have seen more interaction between her and Schaefer and just had the back half of the story fleshed out a little more (I actually checked at one point to see which how many issues I'd read as it felt like there wasn't going to be enough left to finish everything off), but it was cool to see them both back even if they didn't really end in a different place than they began.
Certainly it would have been nice if there had been some update on Dutch now that Hunting Grounds has bought him back and given us the first official post-movie details on him since......ever......but I'm not surprised there wasn't any sort of cross-company coordination going on there. It does make Dutch seem like a bit of an asshole though.
I agree that the ending portion was the weakest, which in part felt like it was because of the subversion of what we'd come to expect from the previous volumes, with one or more of the characters engaging in a big fight with the Predator(s) and ultimately beating them. We got that to start with, but then things got turned on their ear by essentially having the Predators deal with themselves without the main characters having to do all that much.
So yeah while it did feel like a bit anti-climactic as a result, I appreciated that it went in a different direction, since as cool as the first two volumes were I was already thinking to myself "and this is the part where we see the Predator wrecking a bunch of guys and throwing one of their quotes back at them etc." at various points, so I liked that it mixed things up there.
I assume Herrera's actual dialogue was unimportant in terms of the reader fully comprehending what he was saying, so that part didn't bother me too much either. I do think he somewhat disappeared into the background as the story went on so that Schaefer could take centre stage though, and that contributed a bit to the ending not feeling as strong as those of the first couple of volumes.
As for the Predators themselves, I just assumed that one of them was a jerk!
It seemed like "Copper Head" as Hicks called him disliked that he went after that third diver and killed her when she wasn't entirely
within the realms of "legitimate prey". Whether there was tension between them before that or not who knows, but it reminded me of Broken Tusk vs his "student" in the original AVP where one Predator was just an asshole and needed to be put in his place. So I had no problem with that.
I also liked the twist that there were two. In retrospect it was obvious since the masks in the various covers weren't the same, but I just took that as down to artistic license, and I didn't notice the one that jumped out of the water originally being different, which it clearly is in retrospect.
I also liked the artwork, especially any time the Predators showed up or we got an action scene. They got as close to an AVP movie nod as I would have liked them to get. A clear reference but nothing overt. And I dug the "King Willie" homage too.