This is Book 2 of the Revelations cycle (Book 1 is by Mark Wandrey - "Cartwrights Cavaliers"). To me, this is very intriguing as it's the first time I've run across what I'll call a "collaborative universe" where several authors have 'agreed' on a universe, characters (and I suspect an over-arching plot) and then each author writes their own book based on that universe. The interesting point is that, while based in the same reality, reflect the different styles of the authors and different 'eyes' on events. I've seen it where authors get to 'play' in the universe created by another, and I've seen where authors collaborate on the same book, but it's different to me having different 'views' into the same universe in full length novels. And of course, multiple authors mean more books quicker which means... more great reading!!!
So, the author blurb is good so not repeating that, and while it's excellent military SF, it's also about rising to the challenge to save the family business and the family name. Of course, the family business just happens to be hired mercenaries and someone or something is plotting to destroy them. Starting from nothing, and knowing even less, the protagonist (Nigel) must find the right people and resources to succeed. He's also very human, and not every plan succeeds the way he wants it to so there's a price to pay.
It's a rollicking good yarn, rolls along in somewhat unexpected ways (and with an interesting plot twist), but sometimes like in the real world things don't go the way you expect. Very human, very interesting, and I look forward to the next book!!!