Global Cataclysm: I Summon an Infinite Legion to Sweep All Before Me

(Apocalypse + legions + System + overpowered protagonist + no saintly do-gooders) The apocalypse erupts, zombies run rampant, and monsters descend. To survive, you have to keep killing monsters. Guan Li obtains the Infinite Legion System and commands all kinds of powerful legions. “You can fight, huh? So what if you can fight!” “When you’re out in the world, what matters is strength. Dragon Legion, crush them!” “You’re a swordsmanship legend from the Sun Country? I have a Sword Immortal Legion that can teach you a lesson!” “Holy Knights? I have an entire legion of knights at that level!” “Sorry! When you have enough people, you really can do whatever you want!”