Zhang Yanhang had cleared a whopping 14 square kilometers of area, meaning he had cleared one-third of Raccoon City, but he had only managed to gather a bit over two thousand zombies. Therefore, if he were to estimate the remaining two-thirds of Raccoon City's area, it's quite uncertain whether he could gather six thousand zombies.
Even including the underground areas wouldn't make much difference, after all, their scope isn't that large and can't accommodate that many zombies.
After tallying his Talent, Zhang Yanhang continued to check his equipment. He had obtained a total of 75 pieces of equipment from the Police Zombie treasure boxes: 25 were Waist Bags and the remaining 50 were standard-issue gear from the Raccoon City Police Department Special Tactical Rescue Team.
This time, Zhang Yanhang specifically chose duplicate gear, practically ensuring that he could put together four pieces of each item on his belt for fusion.