S01 walked over to the console and said, "The vault is in a state of first-level combat readiness, the power supply is fully turned on, and the defense system is turned on. ”

Suddenly, the control center went dark, and in front of S01, a holographic image appeared.

Chen Xu recognized at a glance that it was the structural diagram of the shelter, and not far away, a group of flashing red dots were approaching this side.

"In forty minutes, the acid antbeast will reach the first line of defense." S01 said, and on the hologram, one of the circular circles lit up, which was the location of the fence.

"There are one hundred and sixty miniature electromagnetic cannons arranged on it."

With the introduction of S01, the circle lit up with small dots on the circle.

Chen Xu asked, "Can you remotely control these electromagnetic cannons?" ”

S01 replied, "No, these electromagnetic cannons must be controlled by human hands. ”

It seems that there really is no hole in this game. There are certainly no weapons of large-scale destruction.

Chen Xu could only give up his illusions and think about it honestly.

He looked at the hologram, shook his head, and said, "The wall is too long, even if you and 2003 are added, there are only four of us, each operating one, and we can't hold such a big place." As long as the beasts are scattered, it is easy to go around behind us and surround us in turn. ”

With four against five hundred, the only way is to defend against the danger. Fence there, not a good choice.

His gaze fell on the hundreds of dots within the fence and asked, "What are these?" ”

"This is the second line of defense, and there are three hundred and sixty weapon platforms arranged with weapons in them are high-energy laser guns." S01 said, and the hologram rotated and zoomed in, revealing the specific structure of the dots.

Chen Xu suddenly realized that those square metal boxes were all weapon platforms. People can hide inside and shoot, and the outside is a metal shell, and the protection is in place.

No wonder this refuge can hold on for so many years under the attack of alien beasts. Even if the alien beast breaks through the wall, it will only be slaughtered in this defensive net.

He noticed that the weapon platforms were connected to the vault through a passage at the bottom.

There was no such passage on the PDA, and it seemed to be the top secret of the Vault.

"We're going to snipe them in the second line of defense." ”

S01 did not raise objections and the decision was passed.

While there was still some time, they discussed the details of the operation.

During this period, 2003 also went to cook two bowls of noodles, and after filling his stomach, he could sit and rest for a while.

…………

"The beast has five minutes to reach the first line of defense."

Chen Xu heard the reminder of 2003 in his ears and said to Yang Jinxia, "Then, I'll go first." ”

"Wait."

Yang Jinxia took his hand, looked him in the eyes, and said, "Be careful." ”

Chen Xu saw the concern and attachment in her eyes, and a warm current surged in her heart, and said with a smile, "Don't worry, I haven't rolled the sheets with you yet, I won't die so easily." ”

Yang Jinxia's long eyelashes moved, and he whispered, "I'll wait for you." ”

Chen Xu let go of his hand and turned around and walked towards the passage.

Yang Jinxia watched his back disappear into the passage, and the surrounding lights dimmed. It seems to be buzzing in my ears again.

A soft voice came from behind him, "Jinxia, I didn't expect you to be planted in the hands of such a man." ”

In her sight, a white shirt flickered, and Xiao Ya appeared in front of her, with that unpleasant smile floating on her face again, "Such a self-righteous, machismo, face-loving man, tough on the surface, sensitive and fragile on the inside." Isn't that exactly what you hated the most? ”

"Actually, you don't like him, do you?"

"You just can't live without him."

"Hee-hee-hee......"

Yang Jinxia listened to the voice quietly.

"Sister Xia, you should be in place."

The sound of 2003 came from the headphones, and the buzzing came to an abrupt halt.

Her hand slapped against the wall, revealing an entrance above her head, from which a ladder was automatically lowered.

She climbed up the ladder, which was quite small and had only one seat. She sat down, followed the prompts, opened the scope, held the handles on both sides, and waited patiently.

…………

On the other side, Chen Xu was already in place, sat on the seat of the weapon table, and took advantage of the fact that the strange beast had not yet arrived, and seized the time to familiarize himself with the operation of the weapon.

The seat underneath is flexible and can rotate 360 degrees. The field of view in the scope is also very wide. You can clearly see what is going on around you.

"I'm done here." He said.

"In place." S01 said.

"I'm in place." This is Yang Jinxia.

Then, 2003 in the control center, "One more minute." ”

According to their plan, 2003, which was not loaded with combat procedures, remained in the control center and was responsible for delivering messages to them.

And S01 is at the front, close to the wall, taking advantage of the fact that the alien beast has just entered the wall and is not clear about the situation, giving the other party a head-on blow.

Yang Jinxia is in a lower position, mainly responsible for picking up leaks.

And Chen Xu sat at the back and was responsible for the security of the gate, which he took the initiative to ask for, because his marksmanship was the best.

Again, the danger is greatest here.

The target of the alien beast should be a refuge, and if it encounters S01 and Yang Jinxia in front, it can be bypassed.

However, once they are blocked by the gate, when the time comes, no matter how stupid they are, they will not be able to just take a beating and not fight back, and they will definitely regard him as the main target.

When the time comes, it will be up to him to see if he can support S01 to rush over.

The plan was that when all the beasts rushed in, S01 would abandon the weapon table in front of him and rush over to support as quickly as possible.

Whether he can stop these five hundred strange beasts, he doesn't know in his heart.

But he knew he had no other choice. With the road conditions outside, he drove a transport truck and couldn't escape far. Moreover, there is a high probability that those alien beasts will chase and kill, and when the time comes, without the protection of the cover, they will die faster.

"Here we are."

In my ears, the voice of 2003 was heard. He took a deep breath and quickly unwrapped a piece of chocolate with both hands, stuffed it into his mouth, chewing it, feeling the slightly bitter taste and concentrating.

Bang bang bang......

In the distance, a dense sound was heard, and it was S01 that had fired.

Bang, bang......

Immediately after a dozen seconds, another, clearer voice sounded.

"That's a lot of speed." His heart tightened slightly, Yang Jinxia's position was nearly two hundred meters away from S01, which meant that the speed of the alien beast was much faster than that of humans.

After another dozen seconds, a dark shadow finally appeared in his sight.

He couldn't help but gasp when he saw the appearance of the strange beast, "This thing is called a sour ant beast?" This TM is an alien. ”