Fellow Citizens in Bunkers, I Lead the Resistance

Military technician Lin Yuan opens his eyes to find himself on a battlefield. His comrades lie dead, enemy bayonets drip with blood, and his leg is torn by shrapnel. As a bayonet is about to strike, the [Defense System] activates! An underground steel bunker rises, auto-turrets guard the entrance, hot food flows from conveyor belts, and medical pods heal wounds. He no longer waits to die, leading survivors to carve out a safe space deep underground. Enemy searches never cease; every tunnel is a life-and-death struggle. From a lone man to sheltering hundreds, from passive hiding to standing firm on scorched earth. To live is the strongest resistance. In the darkest times, he guards the last hope. — Description from novelcodex.org