The windmill in front of Gu Han and others was not a wooden windmill that looked like it, but a windmill made of steel. However, after being painted by experts, it looked like a wooden windmill. Moreover, the steel used to build the windmill is not ordinary steel. It is made of a high-grade special steel that is resistant to corrosion and rust, otherwise it would not continue to rotate for 700 years.

So the question is, why does a small windmill here require steel or special steel to build it? Is the original owner of this field so much that he can't spend it?

Gu Han led everyone into the windmill, patted Miaobi's shoulder and smiled, "Please let Chengying cut the steel plate under our feet. We have the best material here, and the sharpest one is your Chengying, so I can only trouble her."

"Okay." Miaobi nodded and liberated Chengying. Chengying was not long-winded, but was a neat circle facing the ground. A circular hole appeared on the ground instantly. A circular steel plate at least fifty centimeters thick fell down. It took three or four seconds before I heard the loud noise of falling to the ground. Judging from time, Gu Han and others had at least a huge space with a depth of more than 60 meters under their feet.

"Let's go down!" After Gu Han said that, he was the first to jump from the hole. What else could the rest of the people say, and they could only jump down with Gu Han... Fortunately, they each held their own sword girl in their hands, otherwise they would have jumped down at a height of 60 meters, and normal people would have fallen into a ball of meat sauce.

"System prompt: Player Admiral, your team has triggered the Hidden Map: XXX Base, the original mission seven failed, the Hidden Mission: "One Step In Place" takes effect. Please lead your team directly back to Yanjing Base City."

"This triggers the hidden map, it looks so good!" Gangling screamed, but no one paid attention to him.

The space under the windmill has been dusty for unknown periods, and the whole space is filled with a strange smell, just like the smell of a thousand-year-old tomb.

Miaobi and others turned on the flashlight and found that it was an underground facility that looked very advanced and sci-fi. The walls on all sides were filled with warnings and confidential words, and it felt like they had arrived at a very underground base.

"Artoria, how long will it take for the Nazi king to arrive here?" Gu Han asked the last Altoria who jumped down.

"About fifteen minutes left," Artoria frowned, "Why are we coming here? What we need to do is to escape to a safe area controlled by your humans, rather than waiting for death in this underground cage."

"This is not an underground cage. This is the most secret scientific research base and nuclear base of the Chinese government before the Great Destruction. There are hundreds of nuclear bombs and rockets here, and there are three new fighter jets under development. The most elite dark blade special forces are stationed here for many years to defend. It is not an underground cage, but a real security fortress. In addition to the people in these bases, there are no more than a hundred people in China who know that this base exists!" Gu Han explained.

"How did you know this place is so secretive, admiral?" Gang asked in confusion.

"It was only when Renhe and Sword Emperor and Dugu Baitian fought here that the base was exposed. However, at that time, this base was basically destroyed by various battle aftermaths of Renhe and Sword Emperor and Dugu Baitian. Fortunately, a host that preserved the information of the entire base was not destroyed, so later people restored the building structure of the entire base and various secrets inside."

"I found all the information about this base through some special channels, but I didn't confirm whether BAT was fully presented in the game and dungeon world. So after the meeting with you yesterday, I went back to the dungeon and came here specially. I found that the dungeon world really reappeared the base. I have to admit that BAT is really a great intelligent program."

"Although I don't understand what you are saying, I must tell you that your conversation just now has wasted three minutes, and we only have twelve minutes left. No matter how strong the defense of this base is, it is impossible to block the attack of the Nazi King's Third Reich." Seeing these humans constantly discussing some irrelevant words, Artoria couldn't help but urged him quickly.

"It's okay, it's okay, we have enough time!" Gu Han patted Artoria's shoulder with a look of reassurance for me to do things. "According to the information, this base is experimenting with three top-secret military aircraft, including an air gunboat in the formal top-secret design."

"Simply put, an air gunboat is a heavy fighter with rapid-fire guns and howitzers on the plane. It can use the heavy artillery on one side of the fuselage to launch a long-term and continuous artillery suppression on the enemy's front positions. Because it is firing in the air, it can bombard the enemy's dead corners from various traditional artillery angles from the impossible angles. When one's own side gains air supremacy, the air gunboat can cause the most deadly artillery bombardment to the enemy."

"Before the Great Destruction, only the United States equipped the mature air gunboat AC-130. So China started the development of its own air gunboat based on the AC-130, code-named Pioneer. When the Great Destruction happened, this research was coming to an end, and even the prototype was created, waiting for one day to rush into the sky for a test flight."

"Our goal is this Pioneer aerial gunboat. When I came to check yesterday, I found that thanks to the good sealing environment of this underground base, this Pioneer aerial gunboat is very well protected. The fuel in the fuel tank is even full. As long as it is activated, it can soar straight into the sky. This is what I am bringing you here. With the speed of 450 kilometers per hour of the Pioneer aerial gunboat, we can definitely escape the pursuit of the Nazi King and reach the next safe point."

Everyone was stunned when they heard Gu Han's words. Can this copy still play like this? Even the air gunboat was tidied out. What exactly was the admiral's head? Such a place and such things could be thought of by him, and then used it on the copy guide... Comrade Admiral, please allow us to offer our knees.

"Okay, don't be dazed. Time is running out. We must rush to the launch pad where the Pioneer's air gunboat is located." Gu Han urged.

"But the Admiral... it was pitch black here, and there were all kinds of bends everywhere, like a maze. When we walked to the launch pad in a dark way, the Nazi kings were probably coming." Gang Liang looked at the dense passages in front of him, and felt a headache.

"Who told you to walk over!" Gu Han pulled out his King of Yue Sword, walked to the edge of a wall, and waved it hard. This 10 cm thick wall made of special alloy was instantly cut by Gu Han.

"Let's take a shortcut!" After saying that, Gu Han took the lead in entering the next room through this opening. The others looked at each other, but his head still couldn't keep up with the admiral's brain. He was still thinking about how to make it from the maze, so he pushed down the wall of the maze and broke directly into the exit.

Because Gu Han had already arrived in advance, everything went very smoothly. Gu Han cut open seven walls and finally arrived at the room where the Pioneer Airship was stored. A giant 30 meters long and 12 meters high appeared in front of everyone. This was a real fighter plane! Seeing the steel horn of this plane couldn't help rubbing his palms, he couldn't wait to drive the plane.

By the way, who is the pilot of this plane? Gang Lie suddenly thought that his ability to drive an off-road vehicle does not mean that he can drive an airplane... or at this combat level, who is the pilot of this plane?

"Hey, who can fly a plane?" Gangling asked Miaobi and others, but the rest looked at each other. Everyone was a sword holder. Nowadays, planes and suspended speeds are fully autonomous. Who would drive such an old antique from a thousand years ago?

"I'll drive this thing if you think of something useless!" Gu Han patted Gang's head with a slap. "I've studied the driving instructions of this pioneer yesterday, and I successfully drove it to the sky. Don't worry!"

"Artolia, how long will the Nazi King have to come?" Now time is money for Gu Han.

"Seven minutes left! I can already smell the bad smell on the Nazi King."

"Is there seven minutes left?" Gu Han pondered for a moment, "Everyone came with me, cleaned up all the debris around me, and then cut the iron door at the launch port to clear out the space where the plane was gliding... We only have seven minutes, fast! fast! fast!"

Gu Han said three quick words in a row. When the rest heard it, they seemed like a dog biting behind the butt. They began to crazily clear up all kinds of things that blocked the plane's gliding obstacles. Whether they could escape the Nazi King's magic grab and win the competition depends on these seven minutes.

——————————

Just as all of his teammates, including Artoria, were crazily clearing the runway, a figure suddenly sneaked back to the plane.

"I understand, for the brilliant waves! for Eugenogeno!"

He lowered his head and carefully glanced around him. After confirming that people could see him, he quickly took out his famous sword and cut a small hole at a fuel tank-like thing next to him. The precious aviation fuel dripped quickly along the gap in the fuel tank.

"Hurry, get on the plane, the plane will get up soon." At the same time, Gu Han from the team channel shouted like this.

"Here you come!" Someone who poked the fuel tank and said a sword immediately responded, and pretended to be nothing and came out from the plane.

As a result, as soon as the man came out of the plane, he saw Gu Han looking at him with a smiling face.

"Admiral, let's get on the plane now!" The man pretended to be nothing and prepared to get on the plane very calmly.

"Wait!" Gu Han pressed the man's shoulder "Do you still have to pretend?"

"I don't understand what you are saying..." The man took a step back, but was blocked by another person.

"You bumped into me!" A female voice sounded silently, and Hongyu's figure gradually emerged from the air. Hongyu actually stayed invisible and stayed here, which meant that she had taken all the process into her eyes.

"Huh! Actually, I knew I would be discovered sooner or later. You put a lot of pressure on me! Admiral, I will be convinced by you alone in my life."
Chapter completed!