Ed Brisson 
Cluster #1 [EPUB ebook] 

In the distant future, as mankind discovers life on other planets, it needs soldiers to defend its colonies and outposts across the stars. In order to increase the number of boots on the ground, criminals are offered the opportunity to serve in the place of incarceration. But as wars wage on and more soldiers are needed, small-time crimes are given long-term punishments. When a group of prisoners serving their time as soldiers become stranded and abandoned on a war-torn planet, they’ll need to work together to survive and uncover the truth behind Earth’s role in deep space.