Ghost Fleet is a kind of modern update to Red Storm Rising, where a couple of strategic types write up their vision of a future war. In this case, it's China and the US in the Pacific, with cyberwar, spacewar, and drones against good old fashioned American military professionalism. Unfortunately, it fails to live up to its vision, and the workman-like writing isn't enough to compensate.
Let's talk about the tech first, since that's what we're here for. This book is basically one giant sloppy blowjob for the Zumwalt-class destroyer and the naval railgun. I'd estimate a solid third of the book is just talking about the difficulties in getting the railgun operational, and then marveling when it blows up every military target in Hawaii with hypersonic rounds. Space and cyber get a lot of detail as well, as the first real crippling blow is a Chinese space station using a laser cannon to take out American surveillance and communications satellites. Cyber attacks further jam networks in those first critical hours, and hardware vulnerabilities built into chips turn the F-35 into a beacon for radar guided missiles. The Littoral Combat Ship sucks in combat, and the Chinese develop a hard counter for American strategic power with a ballistic missile that homes in on Cherenkov radiation from submarine and aircraft carrier nuclear reactors. Soldiers are hopped to the gills on stim pills and some have cybernetic implants.
But there's also a lot to dislike in the depictions of the tech in this book. The hacking is just warmed over Gibsonian cyberspace. True, real hacking is dull, but more could've been done with deception in cyberspace, and the difference in effectiveness between having a network and up and not having one. Same with the drones, which have some nice terrorizing moments with Chinese quadcopter swarms, but don't do anything particularly interesting. In fact, for a book which is supposed to showcase a generational shift in war, it really ducks away from issues in autonomy, swarming, supply chains, and technological-economic warfare, aside from the hacked Chinese supplied microchips. The Hawaiian insurgency, and the whole "Red Dawn++ scenario" of how heavily armed and networked Americans might coordinate against invaders is just wasted. The authors want to give the sense that the book is accurate by throwing up model numbers for missiles and planes, but there's little sense of how it fits together. An ironic failure for a book who's strongest selling point is "a vision of future war."
On literary merits, this book just barely hits serviceable. A constant problem in the short choppy chapters are characters reacting with surprise to things we already know as readers. The first chunk of the book is supposed to be "business as normal" to amplify the shock of the Chinese sneak attack, but the very first scene has Russian astronauts murdering the sole American on the ISS for no reason (Was he going to call down fleet movements by eye from the observation window?), robbing the book of essential tension. The human heart of the story, the development of Jamie Simmons as Captain of the USS Zumwalt while dealing with his daddy issues with his father Senior Chief Mike Simmons, was just filler. The only really unique character is the serial killer taking out Chinese officers in Hawaii, and the Russian detective stalking her, who seem like they're lifted from a cheesier universe, but are at least a different point-of-view from the all the military types. The pacing is both staccato and too slow, major sins for a technothriller.
There are a few moments that made me smile as the book embraced the ridiculousness of the premise: The Hawaiian resistance calling itself the North Shore Mujaheddin as an ironic homage to the foe of Afghanistan, Yemen, and Kenya; an eccentric Australian-British billionaire demanding a letter of marque for space piracy; The F-35B actually using it's VTOL capabilities in combat. But this book isn't nearly as good as the press suggests.