Prey No More by Lee Matthew Goldberg

Based on the novel of the same name, Prey No More follows J.D. Storm, an ex-Army sniper who’s discharged after losing an eye. The only place a one-eyed sniper can find work is with The Desire Card, an unsavory organization that promises any wish fulfilled for the right price. But when those ‘wishes’ become too immoral and J.D. quits, a slew of killers in actor masks come after him and he learns that no one reneges on the boss—a powerful madman known as Clark Gable—and that he must become the hunter if he has any hope of surviving.