Yu Fei didn't really want to help outsiders deal with him, so it seemed that he was living in a blind corner with his own people. In fact, he had to quickly solve the problem of this blind corner.

He had already prepared for this. He had studied it before coming and made preparations. He wanted to dig two passages inside, one leading to the second floor and one on the third floor to dig out other exits.

In this way, you won't really be caught in a trap. This plan is quick and cannot be discovered.

Before Yu Fei left, he secretly went out to purchase strong acid aqua regia, a cutting machine, a shovel and other tools.

Even on the second floor, thanks to the good sound insulation, a gap was made in advance.

After moving in, Yu Fei asked Scar and Ma Laodao who lived outside to be responsible for preventing anyone from accidentally breaking in and discovering it, and he and others began to dig up the great cause.

Before starting work, the diaphragm equipment was made first, and the selected rooms were covered with sound-insulating cotton, and the doors were made of thicker sound-insulating cotton.

Then use the strong acid aqua regia and a cutting machine to destroy and open the outermost metal layer, which is also the thickest and most difficult to break through.

The next floor is concrete. When we reached this floor, someone from the researcher came back and the cutting machine could no longer be used.

You can only use aqua regia, and then cooperate with their internal strength to tap into it. Everyone takes turns to get the certificate and take turns to rest.

Ten people took turns to do it, and someone was digging almost non-stop. They worked hard and slowly for two days, and finally opened the way to the second floor.

A large amount of garbage was piled up in an unoccupied room where no one would find it.

It is easy to open the passage on the third floor. Yu Fei has already observed that there is only one wall between one of their rooms and a room in another area that is used as a utility room.

After breaking through this wall and a battle breaks out, you can quickly pass through this area and reach another area to circle back and stab the opponent in the back.

This wall can only be corroded a little bit with aqua regia, because it is too close to other people's rooms, and the slightest movement may be discovered.

However, if there are enough manpower, it is not a big problem, just take turns.

In four days, both channels were opened. Because they live with the researcher, they basically don’t go out these days. Occasionally, one or two come out and bring food back to eat together. One of them is a traitor. They don’t like to go out.

, it is easy to get the impression of catching a turtle in a urn.

At this point, all the false news Yu Fei wanted to release was released, and he was waiting for someone to come and block him here.

The bandit country's operation has already begun, but Yu Fei and the others only need to guard this place and carry out their own booby-trapping missions, so they cannot obtain intelligence sharing from the outside world, and it is useless if they know it.

But Yu Fei knew that the bandit country's actions against them could come at any time. Yu Fei analyzed it himself and found that the bandit country was not looking at their own territory after all. Their main mission was to achieve their goals and obtain secrets.

So Yu Fei thinks that those people can lurk in secretly, so they won't choose to show off. They don't have to fight or don't want to fight. After all, how many people have nothing to do and like to seek death?

Although the traitor researchers here do not know the identities of Yu Fei and the others, the people in the bandit country knew that a group of people like Yu Fei who came here with cold weapons would immediately know that they are a group of masters who are good at close combat.

Therefore, Yu Fei can guess the opponent's tactics. It is most likely that they will find a way to deceive the guards on the first and second floors, and then enter the fifth underground floor and find a way to get the research results. Once discovered, they will most likely be on the third floor.

Layer defense, block the guards on the first and second floors, and block Yu Fei and others in this blind corner, so that you only need to guard two entrances to see.

When they get what they need, they only need to fight off the guards on the first and second floors before returning to the ground and leaving.

No matter what the plan is, it must be at least a big framework, and then some refinement and some subtle

Adjustment.

Yu Fei is not a pedantic person, so he passed the passage to the second floor and asked for a batch of weapons from the hands of Guozixian. This way, he would not suffer any loss in fighting. Otherwise, the ten people on his side would not be able to use flesh and blood.

His body collided with someone else's gun.

However, their martial arts are not useless. As long as they are close to the opponent, in close combat, the firearms will become a burden and they can exert their advantage.

On the third day after Yu Fei was ready, the lean expert in charge of them finally contacted Yu Fei. The 3D projection equipment projected the opponent on the wall of Yu Fei's room. It looked like the opponent was really standing on the wall of Yu Fei's room.

Normal in front of me.

"Your experimental base has been targeted. It is estimated that the other party will take action soon. I have also heard about the conflict between you and the defenders of the base. At this time, I hope you will put the overall situation first!"

The lean master said straight to the point. Because it was a 3D projection, Yu Fei saw the fatigue in his expression and knew that he must have been very busy these days, and he might have even joined the battle.

"Can I trust you?"

Yu Fei bit his lip and asked.

"Director Chen said, if you doubt me, I will tell you just one sentence to gain your trust!"

The lean master was already prepared to say.

"tell me the story!"

Yu Fei nodded, this should be the secret code Chen Dong wanted to pass to him, saying something that only two people knew. The purpose was to tell himself that the lean master could be trusted.

"Director Chen said that I am as trustworthy as Dahuang!"

The lean master clenched his fists in humiliation and said.

"Well, don't feel that you are insulted. This is the highest reward he can give you. Dahuang is not a dog!"

Yu Fei understood it after hearing it and immediately explained it to the lean master.

"Not a dog? That's good!"

The lean master breathed a sigh of relief. It seemed that he had been concerned about comparing himself with Dahuang before, but he just held back and didn't say anything. When Yu Fei said this, his knot was relieved.

"Then I will tell you directly, we discovered the traitor from inside, so I deliberately staged a drama of internal strife with the defenders, and I quietly opened up the base on the second and third floors, and I also opened up on the third floor.

The other passages are different from the information you have that can be blocked with a machine gun!"

Yu Fei knew that the other party could be trusted, so he shared his situation.

"I know that you are definitely not that kind of idiot, let alone someone who just waits to die. I'm relieved. I wish you good luck!"

The lean expert was obviously here to be a peacemaker, but he didn't expect that the information he got was wrong, so he was relieved.

"Are you contacting me just to be a peacemaker? Didn't you share any information? Didn't you intend to do a favor or something like that?"

Yu Fei asked in surprise when he saw that the other party was about to hang up.

"The information you want to know is confidential and has nothing to do with you, so there is no meaning of sharing, and you have no right to know. As for helping, our manpower is also very tight. After all, we are on the defensive side, and there are too many places that need to be protected.

Much more, if it weren’t for the fact that the place you’re defending is so important, I wouldn’t even bother with this kind of thing!”

The lean master said very straightforwardly.

"I'll fuck your grandma!"

Yu Fei's famous saying is finally the turn of the lean master. In the past, it was specially given to Chen Dong.

"Hahaha, Director Chen said that as long as you nod, your authority will be the same as his, and you can know everything you want to know, but you don't want to!"

The lean master didn't care at all, as if he had been praised by Yu Fei, and even responded to Yu Fei by telling him what Chen Dong had said to him in private.

"I'll fuck your two grandma's legs!"

Yu Fei's attack was a group damage attack this time.

The lean master directly hung up the contact this time, knowing that he would be scolded again, but he was very happy when he was scolded. Yu Fei scolded him like this, which meant that Yu Fei began to trust him. Only Chen Dong could do this scolding before.

suffer.

Because he is absolutely trustworthy, Lean Master is considered one of Chen Dong's confidants. Although his authority is lower than that of Chen Dong, he knows that he probably knows some of Yu Fei's deeds, so he is full of respect for Yu Fei.

So he was happy to be friends with Yu Fei, because he felt that one day, maybe we would be the best brothers.

After the contact ended, although the lean master didn't say anything, Yu Fei knew that the fighting outside must be fierce. Since other places had taken action, they should be here for a day or two.

Yu Fei went out and gathered ten people together and told them to stay in top condition and prepare for battle at all times.

Their research results here have been transferred, but they are still used as key defensive targets, which means that the research here must be very important, and maybe they have been targeted a long time ago, so a battle is bound to happen, and they will also be regarded as key targets by the opponent.

Then the battle will not be easy, but Yu Fei really doesn't want to see people with yellow skin and dark eyes like himself coming here. It's really chilling!

However, contrary to expectations, another day of researchers' rest time is coming. These people are bored staying underground, so basically everyone will go out for a walk on the rest days and then rush back before the evening rest time.

Yu Fei also had a premonition that something was going to happen that day, so the ten of them distributed weapons into their hands.

Wang Dachui is definitely a good gunner, so a heavy machine gun was prepared for him, and all the others had automatic rifles. Of course, everyone also had a pistol, a bulletproof vest, and ten grenades.

Heavy weapons with more powerful firepower are no longer suitable for use underground. No one dares to use them, because this is an underground building. If you take out rockets, it will be a common death. Everyone thinks

I will be the winner, so I probably won’t choose this way.

When night came, the researchers began to return, and the guards on the first and second floors were busy doing checks to prevent anyone from sneaking in weapons and other things.

But they ignored one thing, that is, they forgot about the defense personnel. If these people used special methods to change their faces, they would be like Yu Fei who was on a mission outside the country. The real power and danger is Yu Fei, not Yu Fei's weapons.

.

Yu Fei's goal was not to defend this place, but to let people in and annihilate them, so they waited on the third floor to give the opponent a chance.

The two researchers Yu Fei discovered belonged to different laboratories when they were working underground, so they were not familiar with each other or even knew each other well, but they came back together tonight.

It was impossible for the defenders to check these people once on the first floor and again on the second floor, so they all lined up at the entrance from the second floor to the third floor to check. Just when they checked the two researchers, the battle suddenly started.

.

The two researchers suddenly took action. The two people who Yu Fei was sure did not know martial arts before turned into martial arts masters today. At close range, with only a dagger in their hands, the two people almost defeated each other in a few seconds.

Inside, all seven guards near the door were killed instantly. The seven ordinary guards had no time to open the safety guards on their weapons.

After capturing seven people, the two men quickly collected the weapons of the seven people and blocked the other guards who came for reinforcements according to the terrain on the spot.

Not only were these two men good at martial arts, but they were also accurate in marksmanship. They quickly pushed back the supporting defenders and even wounded several more.
Chapter completed!