Red Alert Base in the Apocalypse

[In the bloody fog of the wasteland, the red police base vehicle ran over the spine of a zombie! The moment programmer Chen Mo was pushed into the pile of zombies, a scarlet interface suddenly popped up on his retina - "Red alert system activated, current level 1: can summon 5 mobilization soldiers, unlock mines and barracks!" He kicked away the advancing corpses and looked at the holographic map that appeared on his left wrist: Three kilometers away, mutated zombies were devouring the same kind alive. The bone blade exploded from the back, and the level directly jumped to B level! "Ore cart! Go to the east ruins to mine crystal mines!" Chen Mo gritted his teeth and typed the command. The newly summoned conscripts rushed into the zombies with AKs in their hands. When the bullet penetrated the zombie's temple, the system prompt sounded: "Resources +500! System level +1, unlock the Rhino tank!" As the earth shook, the dark green tank ran over the mutant's bone blade. Chen Mo stood on the roof of the newly built base and looked at the kneeling survivors below - the female sniper wiped the blood stains and handed over the military spike, the mechanic raised the wrench and shouted "Head Wolf", even the rescued scientific research lady had red eyes: "Team Chen, I can decipher the laws of zombie evolution." (Wasteland Survival + Red Alert Explosive Soldiers + Brotherly Counterattack + Interstellar Expansion, click to see how programmers use the Red Alert system to kill from the pile of zombies to become the master of the universe! Ps: Magic Red Alert)