The level of detail that is included is incredible, and although there is no traditional 'story-line' to keep the reader hooked, Hal doesn't even try to dress it up - it's a very well-written, factual overview of the situation, getting a lot of details across very quickly. I like this style of writing, as there is no drama involved with it, its just very accurate and to the point. The list of 'important' personnel is very interesting, and I have already bookmarked it - I'm sure it'll be very, very useful later on.
However, saying that, I also like the quick snapshot that is included where the reader is given a taste of what was involved in the battle, at the start of Chapter One: Heat of Battle (a snippet of which can be read here), where Hal and Joe skillfully weave factual content in with the shockingly personal stories of the men there (for example, Specialist 4 Arthur Viera's horrifying injuries). This reads a lot quicker, and is very dramatic. I suppose this is done to draw the reader in to the book, but I must saw, it is very effective.