Lucky Universe (Lucky's Marines, #1)

In a desperate fight against insurmountable odds, mankind’s only hope is a lifer Marine with a violent past he can barely remember and a penchant for picking fights he shouldn’t win. Ambushed behind enemy lines and left for dead along with a handful of privates so green they actually respect his authority, Lance Cpl. Lucky Lee Savage has to master his inner demons, manage the ambitions of his foul-mouthed AI, and figure out what is tearing a hole in the fabric of space-time before everything goes tits up. Lucky wouldn’t bet on the universe. One thing he will bet on: Somewhere, somehow, somebody is going to pay for all this. And he is going to be right there to pull the trigger.