Walls of Hope. The Last Bastion, #2

The Gas Station is dead. Long live The Last Bastion. Under Commander Jarek Solborn's leadership, the small shelter is rapidly expanding, with Garrin Brask designing formidable, self-sufficient systems. But true defense requires professional muscle. Jarek begins recruiting heroes from the fractured military: Lieutenant Nash Vettor (Army tactical), Corporal Vira "Boomer" Kael (Marines heavy weapons), and Agent Riven Strade (Air Force special ops).
The growing beacon of hope draws resources, which puts them on a collision course with Marshal Dren Korrik and his ruthless Red Barriers faction-a group that views empathy as a fatal weakness. As Jarek fortifies his base and his team, he learns the painful truth: in the apocalypse, the most lethal enemy is the one who still remembers how to fire a rifle.