Vigil: Knight in Cyber Armor by Lewis Knight

In a city where criminals rule … one man rises from the shadows to make a stand.

Jett scrapes out a living in the oppressive city of Neo York: a crumbling ruin of violence and vice ruled by gangs and crimelords. When a masked vigilante dies saving his life, Jett adopts the hero’s mantle and uses his skills as a former soldier to wage a one-man war on the city’s criminal elements. But his enemies won’t go away without a fight, and every one of them wants to be the first to kill the city’s new hero.