Apocalypse: I Have a War System

Chen Feng transmigrates into the apocalypse. When a zombie lunges at him, he obtains a War System.

“Every fear in the world comes from a lack of firepower. But once you've got enough firepower, you won't be the one who's afraid.”, Chen Feng

I'm a new author, so please bear with me.

P.S. This is my first time writing a novel, and I'm still a newbie. Please forgive me if it's not very good.