Good ideas to be found here but unfortunately three things aren't.

Non-firearm ranged weapons. Javelins are here, but only as melee weapons. You can't throw them. Bows aren't even mentioned.

The mentioned "advanced reference card" isn't here. Didn't appear in the patch either. Maybe soon.

and last, (and the reason I'm writing this here) is there is absolutely no contact info given for contacting the designers to get these matters addressed. A hint there for any PDF sellers...

I own every installment in the Big Bang series and plan to continue this trend. But unless these issues are addressed in a patch (and not an additional product) I will give very serious thought before buying any other products, including the "companion" program promised for this system from this seller.

A pity too. They do good stuff usually.

Very useful for a D20 campaign, even if you do not intend to run a military campaign. (Some of those NPCs are going to be elite military, right?)

A marine friend and I have found a few things we disagree with, but on the whole this is a good addition to my D20 Modern collection.

What can be added to the previous comments. I was a history major in college and so have more than the average knowledge of the subject this book covers. This is the best single source I have seen and I believe the best single source in existance for building realistic medieval worlds for your factasy RPG games...

I can only echo anoher reviewer's comment.

BUY THIS BOOK. It is 130+pages of pure value for any good DM.

I only hope this is the start of a series of books, a series I will buy on sight.

A good list of imaginative additional spell effects. While there are no new spells, the additions will definately surprise your players when your Villians start using them. Then let the players research a bit and they can use them too perhaps, maintaining balance.

These are useful ideas and I look forward to future products like this (I also own the other "101" books and recomend them as well to add good variety to your treasures "on the fly").

A very useful product for adding surprises for your players, and we all like that kind of thinghs, right?

Dan