As a stalwart Twilight 2k, RPG, and military science fan, I have to say I'm of mixed mind on both this book, and all RtA content thusfar.

On the one hand - this book is full of fascinating insight and detail into a variety of topics. A vast amount of information, from a detailed weapon and equipment list, to figures on biological weapons, post-armageddon economics, and more. This is clearly a labor of love, and it shows, with the sheer breadth of subject matter available for a GM.

On the other hand - non-insignificant amounts of this information is either opinion presented as fact (the entire segment on Category-IV mobilization division organization and what equipment they'd have, claims on Soviet vehicular reliability, and claims on the impossibility of the setting as presented in T2K4E) or is simply not correct. Author confuses, or gets wrong, details about firearms in the segment - examples include asserting the FAMAS F1 fired 7.5mm French (it did not), that the M16A4 was fully automatic and used exclusively by USMC (it was neither - he may be confusing the fully automatic M16A3, issued in limited quantities to the Navy and Seabees, and not know that while the -16A4 was issued to the entire USMC, it also featured widespread Army usage), and incorrect information on the proliferation of the AEK-971 and AN-94. While the vast majority of information presented is correct, just enough is gotten wrong that it is difficult to take everything at face value, without double-checking. Some design choices presented in said segment as well can be considered strange - the IAI Desert Eagle is stated, not in .50AE, but in .44 Magnum, the AN-94 has no note of it's unique "double tap" mechanic, etc. The latter is not a major criticism, but it is worth noting. As well, the equipment "cutoff" date is not the standard Twilight date of late 90's, but includes equipment all the way into the present day. Without independent knowledge of the equipment within, it's very easy to fail to see the anachronisms, and use anachronistic equipment.

In addition, the author insists on using many custom elements of mechanical design. For instance, all gear mass is measured in Kilograms instead of 4th Edition "encumbrance units," which renders conversion to 4th ed standards an irritating task. Vehicles are stated up with custom turret armor and top and bottom armor, which requires five additional pages of custom ruling detailing additional hit locations, maintenance, and the intricacies of modern armor. Smallarms ammunition has custom rules for handgun and SMG ammunition. And so forth. While all of these, in a vacuum, could be successfully presented as variant rules for increased intricacy, the author does not offer the choice to use or not, but presumes that, simply, they will be used. This makes the rulebook very self-contained - it's more than a little difficult to use "Road to Armageddon" stats or equipment with other third-party sources, or even with content contained within the core rulebook itself.

As a side note, the author is highly disparaging of 4th edition, and makes no attempt to hide this. While they're of course entitled to their own opinion, it became somewhat irritating to be reminded of the author's displeasure of the current edition every ten pages (metaphorically).

Overall, I would recommend purchasing this if you have the money, have a firm knowledge of what you want out of this book, and have your own independent knowledge of the contents within, so that you can read the opinion presented within with a critical mind, and draw your own opinions. Again, the breadth of knowledge presented in here is fantastic, and, even if you don't take everything in here blindly, the information within can help you shape your own opinions of gear and how to run a Twilight campaign. However, do not purchase this book if you're looking for a quick list of equipment to "slot in" to an existing campaign. All contained within here must either be used exclusively with other RtA content, or converted out of the RtA rules system, and information contained here is best served independently reviewed by any GM.