C48 Suppressing Them Forcefully

"System! How long to construct the Pillbox?" Unlike the vast distance to a large supermarket, Han Feng could erect a Pillbox within the university, just a kilometer from the temporary base, to quell the zombie outbreak there.

"Commander, building the Pillbox will take five minutes," the system's voice echoed in Han Feng's mind.

Five minutes... With a horde of zombies bearing down