In the next few days, the zombie siege gradually increased, and later mutated zombies appeared.

For hunters who are adept at climbing and jumping, the towering walls of the base are useless, and if they rush to the bottom of the city, they can climb to the top of the city in an instant. With their powerful strength, razor-sharp minions, and long-range attacks that spew strong acid, ordinary warriors are powerless in front of them, and even less powerful evolutionaries and warriors are difficult to match in a head-to-head situation.

And the stalker, who is good at diving and has a protective scale armor, is even more difficult to guard. Although there are many evolutionaries in the base, there are very few who have Zheng Yafeng's detection-like ability. Even Zheng Yafeng, who has been cultivated by Hui'an, has a limited range of monitoring, and it is difficult to take care of even a city wall.

In order to deal with the occasional raiders who burst onto the walls and the lurkers who often appear behind the walls and even in the hinterland of the base, several mobile units are exhausted, and casualties are gradually increasing.

On this day, Hui'an stood at the head of the West City and looked into the distance, looking at the still boundless sea of zombies slowly approaching the city wall, with a grim look on his face. In the sea of corpses, more than a dozen saboteurs with a height of five to seven meters were extremely eye-catching. For the first time since the first day, he had seen another saboteur appear, and he had a hunch that today's battle might be different, or that it might finally be time for a decisive battle.

The rumbling sound of cannon came from behind him, followed by bursts of fire in the dense zombie horde, tearing the hordes of zombies to pieces and inviting out the clearing.

But the zombies who didn't know what they were afraid of didn't stop for a moment, and in an instant, zombies from behind rushed up to fill the empty space again.

"How did those saboteurs learn to be smart?" Han Yu put down the sniper rifle on the wall with a depressed expression.

She set up her gun when she saw the saboteurs appear, but just as she was about to take aim, the saboteurs seemed to have a sense of urgency at the same time, removing an oversized and rudimentary shield from their backs, hiding most of their bodies behind the giant shield.

Han Yu tried to fire a few shots, but the effect was not very good. The shields appeared to be made of layers of thick steel plates, and although they were crude, they were extremely strong. The special bullets that Han Yu bought at a high price could barely penetrate, but then they became the end of the crossbow, and it was difficult to damage the saboteurs.

Hui An smiled and rubbed her mushroom head: "Although those saboteurs have no brains, the commanders behind them are cunning and wise, so it is not surprising that they can think of this idea." But don't worry, wait for them to get closer, and your abilities will come in handy. ”

The saboteurs didn't get too close before they stopped at the same time, grabbing their backs with their backs, each grabbing a hunter, and then throwing their arms at the wall.

"Again?" Han Yu was taken aback slightly, as early as when he was in Jiayin County, the saboteurs had used this siege method.

When she exclaimed, her hand was not satisfied at all, and she pulled out a large revolver from her waist like lightning, and raised her hand to fire three shots in a row. Three bullets, also specially made, flew out of the long barrel of the gun, accurately headocating the three hunters flying in her direction.

Almost at the same time as the gunshot, a string of bowstrings rang out from not far away, but it was Zheng Yafeng, who had already entered the house with archery skills, who performed the "Shadowless Arrow" stunt taught by Hui An, and fired four arrows in a row in an instant, shooting the four hunters in the air.

But neither of them could take care of the entire city wall, and the few remaining hunters still managed to land on the wall, and in an instant, it set off a bloody storm among ordinary warriors.

When the masters of the mobile unit hurriedly stepped forward to surround and kill, those saboteurs had already thrown ten rounds in a row without stopping, and although Han Yu, Zheng Yafeng, and other strong men with long-range attack ability tried their best to intercept and kill, there were still nearly seventy hunters who landed on the wall.

As a result, the city was in chaos, and most of the warriors could no longer afford to shoot at the city in order to resist or hide from the hunters.

Hui An's body flew along the wall like lightning, and everywhere he passed, every hunter who had not yet been picked up by other masters was killed by his thunderous Zen staff.

He shouted and ordered everyone to continue shooting at the city to stop the corpse tide from approaching, and on the other hand, he looked carefully outside the city. He felt that the zombie attack would not be so simple, but he had not found anything unusual.

Just when he was puzzled and became more and more uneasy, among the corpses that were gradually approaching the city wall under the city, there were ten zombies that were evenly scattered, with slender limbs and bulging chests and abdomen, and suddenly stopped. They pursed their lips sharply and inhaled, and their already swollen chest and abdomen swelled sharply several times as round as a ball, and then suddenly opened the huge mouth of the blood basin that split all the way to the base of the ear, and let out an extremely sharp and long roar.

The whistling sound pierced the ears of everyone on the city wall like a sharp needle, and almost everyone felt a sharp pain in their ear drums, and then their bodies lost their balance and staggered, and they couldn't get up for a long time.

The howls of the ten strange zombies under the city became higher and higher-pitched, and in the end, they still maintained the posture of opening their mouths and howling, but there was no sound coming out of their mouths, and the people in the city had nausea, headaches, difficulty breathing, and even bleeding from the mouth and nose.

The remnants of the dozen or so hunters in the city were not affected by the whistling sound in the slightest. They took the opportunity to kill wildly, and in the blink of an eye, hundreds of soldiers were killed, and most of them were mobile force masters who were still fighting with them a moment ago. Among them were three evolutionaries from the Eagle Hall under the One Yuan Alliance and more than twenty Young Warriors from the Dragon Hall.

Hui An finally understood that this new type of zombie that had not been seen before and could launch a sonic attack was the killer weapon that the commander was preparing to use to break the city. He looked around and saw that except for a few people such as Meng Hegong, Hu Yang, and Han Yu, who had each used their abilities or skills to protect themselves and were not affected for the time being, there was no one who could stand on the entire city wall.

"Nan no Amitabha!" He was so steep that he raised his breath in his chest, and recited a Buddha horn with the "lion's roar", although it was only a short six words, but it was like a flood of bells, shrouding the space within a radius of several miles, and the repeated roar echoed for a long time. The majestic sound dissipated the invisible sound waves emitted by those strange zombies, and then reached the ears of everyone on the city wall, causing most of the disgust in their hearts to dissipate. However, because of the physical and mental damage caused by the sound wave, most of them were still weak and unable to get up for a while.

"In today's world, is there anyone who has practiced Shaolin martial arts to such a pure state?" In a place where everyone in the city could not see, the mysterious figure who had made the commanders bow down to their ears stood with his hands in his hands, and a slight look of surprise appeared on his face. Immediately, he shook his head again and smiled, "In any case, the overall situation has been decided today, what can that person change by himself?" ”