The Unlikely Defenders — Scott Haworth

From the author of the popular Dark Moonlighting series:

What do a womanizer, terrorist, disgraced naval officer and convicted sex offender have in common? They are not typically thought of as the good guys. The Unlikely Defenders follows a large cast of characters as they struggle against both an alien invasion and their personal demons.

Through their stories a greater tale is told about an attack on Earth by a species known as the Kessiams. The insects swarm over the entire planet and affect the lives of every human being. Heroes are not enough to defeat the enemy. If humanity is to survive it will need the help of society's outcasts as well.