Despite the awful cover art this novelization by Simon Hawke (written, mostly, in a Colorado coffee shop) is a nice extension of the movie. Novelizations usually feature extended scenes which are mostly cut from the script before filming, Predator 2 is one of the rare instances when virtually all of the shooting script was filmed, only important scenes never made it to the movie.
A lot of fans of the first movie reject Predator 2 because they opposed Danny Glover replacing Big Arn as a hero. Before Gary Busey was cast as Peter Keyes, the government agent trying to catch the Predator, the role was actually supposed to be Dutch. But perhaps by having a new set of characters the movie is kept new and fresh. The explanation of what happened to Dutch (and Anna) was revealed by Keyes, but it was cut. It's here in the novel, and apparently Dutch debriefed the military in a hospital where he was dying from radiation sickness before escaping and never being seen again. So that's the official story.
Hawke writes a lot better than Paul Monette (who novelized the first movie before it was massively overhauled) and even squeezes a Lethal Weapon in-joke in there, though he does get a few details wrong (the Pred has 5 fingers, not 3) I did enjoy the narrative frequently cutting to the Predator's point-of-view, giving his take on events and logic.
There are currently lots of Predator books in print, but this one is not. I think it is time for someone like Dark Horse to re-publish it.