I burned through a copy of WW Z a handful of years ago.

I liked the "war diary" presentation. Didn't really catch on at the stereotyping because I wasn't paying attention and enjoying the stupid story book when all the zombie entertainment was flooding the market.

I did get caught up in how silly the USA's military response was portrayed. Kettling thousands of zombies in a city and then dropping bombs/artillery on top of them would do a pretty good job of shattering skulls and liquefying brains. Shit, just having any tracked armored vehicle with mine rollers on the front could have done a great job dezombiefying a city's worth of zombies just by kettling the Z's and then slowly driving in a straight light down a street. Instead, bombs and artillery were described as having no effect (unless my memory is completely wrong), which... just isn't how explosions work.

There's entire sections of any modern military doctrine about digging holes/trenches for fighting positions and obstacles. Dig a series of narrow/shallow trenches with tanglefoot wire obstacles between trenches, lure a city full of zombies towards them and any zombie that falls down is pulped by the thousands of other zombies walking over them. Your bait team just walks or drives away.

Of all the ways to bash the US military, criticizing its ability in destroying a large population of squishy targets tightly packed together is absolutely not the most believable story device.