In the torrential rain, zombies receive a significant enhancement.
So.
Survivors sometimes fear dark clouds because they sometimes herald rain.
This rain has lasted for more than a week.
From the initial drizzle to the later moderate rain pouring down, and now a downpour.
In the heavy rain, zombies, like crazy, tireless beasts, constantly assault the base's walls.
These zombies madly use their hands to claw at the concrete walls.
Under the erosion of the rainwater, some wall surfaces have even been clawed open a small gap by the zombies.
But after all, it's made of reinforced concrete.
The gap is a few dozen centimeters wide, but only one or two centimeters deep.
After clawing their way in, it becomes increasingly difficult for zombies to breach further because the interior is filled with a large amount of steel reinforcement and stones.
It is an effect that these zombies can only achieve after continuous, round-the-clock effort over more than a week.