The End of the World: I, the Grumpy Old Man, Use Gun-Based Plug-Ins to Kill Zombies

Lin Shou traveled through the apocalypse and awakened the omnipotent plug-in assistance system. The "unlimited bullets" function is unlocked at the beginning. Bite! Complete the mission to unlock the "Crosshair" feature. Bite! Complete the mission to unlock the "Auto Aim" function. Bite! Complete the mission to unlock the "recoilless" feature. "I, Lin Shou, guard a city by myself. I can save that occupied area by myself." In the wasteland, Lin Shou's figure appeared. Everyone's eyes were filled with tears: "He is here, we are saved." ... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.