At this time, the zombie horde had already filled up the South Base. Even the material warehouse in the center was unavoidable. The people who didn't face the zombies at close range had mixed feelings. Because they stood high and could see far, they could see the whole South Base, and they could deeply feel the urgency of the situation.
He Feng and the others looked at Chu Han nervously. The zombie horde had reached the most difficult moment to resist. What trump card did Chu Han have to turn the tables?
Pa!
A light sound.
Chu Han's finger directly flipped the switch of the loud speaker, and this subtle sound also attracted the attention of the people in the room, and they looked at the big guy that Chen invented and specially sent to the front line of the battlefield.
With this thing, they could turn the tables?
Many people began to doubt from the bottom of their hearts, not to mention that Gao Shaohui thought it was useless from the beginning to the end. Chu Han also just got this thing, and no one knew how effective it was.
Just when Chu Han pressed the button, an extremely subtle sound wave came out from the speaker, through the speakers in the command room, this sound wave was transmitted to every corner of the base.
After the sound was infinitely amplified, many people also heard it, but it was strange that this sound was very loud, but they couldn't hear it clearly.
It was a bit like the sound of a dolphin, and also a bit like the cry of a baby, extremely strange!
The few people in the command room were inexplicable, they didn't understand how this extremely strange sound could help them in this battle.
"Can you hear it clearly, but at the same time, you can't hear it clearly?" Chu Han laughed at this time.
He Feng nodded and replied, "It's intermittent."
"Why do I hear a melody?"
At this time, Gao Shaohui was surprised, "It's not intermittent, but continuous, super unpleasant melody!"
"I think it's different from all of you."
Another member of the General Staff said with a horrified expression, "I only hear a scream every once in a while."
Immediately, everyone in the room looked at each other in dismay. Their expressions were incomparably ugly. Everyone heard a different sound. Could it be that they had seen a ghost?
Chu Han was not surprised at all. "That's normal. Most people can hear sounds at a frequency between 20 Hertz and 20000 Hertz, but the range of a new human being will expand, and as the level increases, the range will become wider. Gao Shaohui has a natural advantage. He can hear frequencies that are much wider than ours, so he can hear everything clearly."
After listening to Chu Han's explanation, everyone understood. However, there was still one crucial question that they did not understand.
Jiang Tianqing immediately asked, "Let's not talk about the Hertz frequency first. I don't understand any of it. I just want to know what this has to do with the zombie tide."
Chu Han's eyes were like torches, "You should know that zombies generally have no vision, but their hearing is extremely sharp, right?"
As soon as this was said, the command room suddenly became extremely quiet. The smart people had already come to a conclusion from the known clues. For example, He Feng had already impatiently looked outside. As for those who did not understand, such as Gao Shaohui, they were still scratching their heads and staring at Chu Han.
The range of sound that zombies could hear was obviously different from humans!
"Oh my god!"
At this time, a member of the General Staff shouted excitedly, "He Shang is really a genius!
Quickly look outside! "
Almost all the members of the General Staff Officer Department were extremely intelligent, so they were the first to understand the situation after He Feng. The rest of the people in the command room, on the other hand, subconsciously shifted their attention back to the battle below after hearing the loud shout.
And at this time, a scene that no one could have imagined, and at the same time, it made Chu Han even more surprised, happened in front of them!
There were more than seven million zombies that filled the entire South Base, and nearly five million of them seemed to be frozen by magic. It was even more obvious from above. The squirming black dots just stayed in the same place, like statues.
This sound wave, could actually achieve such an effect!
Although the specific principle was probably only understood by He Shang, it did not affect the few people in the command room to instantly seize the opportunity.
"Everyone attack!
These zombies can't move! "He Feng immediately ordered through the loudspeaker.
And when these five million zombies were unable to move, the members of the Wolf Fang Squad that were almost submerged in the sea of zombies finally reappeared.
Although their numbers had obviously decreased, and everyone's clothes had long been torn by the zombies, and many people's skin was full of zombie scratches, but the moment the opportunity appeared, the crazy counterattack of the Wolf Fang Squad had already begun!
"Kill!
Smash the zombies' heads! "
A squad leader among the recruits shouted. He smashed the heads of the zombies that surrounded him, quickly and fiercely smashing them.
The rest of the people all grabbed their weapons again, and started to kill the surrounding zombies.
Even if there were more zombies that couldn't move, it was no different from whack-a-mole, and it even saved them the time to fight, they only needed to raise their weapons and smash down, and so on.
Therefore, in a very short period of time, the zombies that had rushed into the base fell in large numbers, and became the new carpet of the South Base. The roads that were blocked by the zombies gradually began to have gaps.
After He Feng gave the order, he quickly discovered the situation on the scene, "Not right!
These are all low-level zombies, and there are still two million zombies that are above phase-5, this sound wave is the strongest against low-level zombies that are below phase-5. "
"The situation of the three teams on the high wall has not improved, the battle is still very fierce." Jiang Tianqing immediately added, "Those are all high-level zombies, all of them are above phase-7."
The five million zombies that couldn't move were all below phase-5, and among the remaining two million zombies, there were one million that seemed to be struggling, they were just above phase-5, or later phase-6 zombies, and they were scattered in every corner of the base.
There were still one million zombies that weren't affected much, they were still attacking crazily, it was the group that the three teams were facing, and all of them were above phase-7!
"Shooting team, attack the high-level zombies." He Feng immediately gave the new order.
In fact, he didn't need to say more, at this time, all the members of the shooting team had already started to aim, the targets were the zombies that were moving slowly, no matter from the size or the current situation, they could easily tell that these were the targets.
"That's great!
There are only one million zombies that are above phase-7. "
Jiang Tianqing was overjoyed, but as soon as he said this, his expression suddenly changed, and his face became as white as paper, "There are still one million zombies that are above phase-7?!"