After all, the Japanese army is considered to be the strongest in Asia, and after the explosion, Kogoro, who was also knocked to the ground by the air wave, shouted loudly and angrily: "Cover me!" Kogoro, who turned over and got up from the ground, took out a * from his waist, shouted to his companions, opened the safety of *, and threw it through the door of the large open conference room. There didn't seem to be any movement in the conference room, and suddenly Kogoro heard something that seemed to have fallen next to him, and when he looked back, he almost lost his soul, and it was the one that he had just thrown into the conference room* that fell next to him.

Kogoro reacted quickly, picked up the * and threw it aside, and before several Japanese soldiers on the side could react, they felt a wave of air push themselves against the wall. Kogoro shook his dizzy head vigorously, the roar in his ears made him unable to hear anything, and his vision seemed to be crooked. In a daze, he saw a pair of black military boots approaching him step by step, and Kogoro, who was dazed, subconsciously wanted to pick up the rifle that had fallen beside him, but it was too late.

Lu Yuan, who was also fully armed and wearing a skull mask on his face, leaned over slightly and looked at Xiao Goro, who was reaching out and grabbing it, looking at the skull mask on the other party's face, Xiao Goro suddenly came to his senses, and his survival instinct made him quickly hold his back elbow and retreat, but he saw that the muzzle of the black hole was already pointed at him. Lu Yuan not only shot and killed Kogoro, but also refilled all the corpses and wounded in the corridor, and then repeated the old trick, blowing up the stairs on both sides between the second floor and the first floor.

Blowing up the stairs on the 2nd floor, Lu Yuan, who was under siege, was once again temporarily safe, and he was absolutely safe until the Japanese troops at the Japanese headquarters tried to attack from the outer wall. Looking up at the stairs that had been blown up, Noma's head was even more chaotic at the moment, he couldn't understand why the other party didn't seize the opportunity to escape from the headquarters, but put on a posture of fighting to the death, could this mysterious attacker really want to die here?

Lu Yuan naturally didn't think that he really wanted to fight the Japanese army to the death here, he just wanted to delay time, and by the way, he wanted to kill more Japanese soldiers, and the intelligence and information he collected were only extra gains. Just like what he did on the 3rd floor before, after blowing up the stairs on both sides of the 2nd floor, Lu Yuan rummaged through all the rooms on the 2nd floor, and the massive amount of information and documents found in them made Lu Yuan happy to close his mouth.

After cleaning all the rooms on the 2nd floor, Lu Yuan, who stayed in a certain room, was a little difficult, it should be the time to go down to the 1st floor, but Lu Yuan did not move for a long time, because the 1st floor was crowded with Japanese soldiers, and Lu Yuan was not sure of winning at all. On the full-view map opened by Lu Yuan, the first floor of the building was full of small red dots, and Lu Yuan had just roughly counted that there were at least more than 60 Japanese troops downstairs.

Whether to fight or escape, Lu Yuan has not yet figured it out, but there is still a lot of ammunition left in the storage space, and he doesn't have to worry about running out of ammunition. There were a lot of Japanese soldiers downstairs, and more Japanese troops gathered around the Japanese headquarters, and when they heard the gunfire that broke out inside the headquarters and the explosion just now, most of the patrols in the city were gathered, but after seeing the tragic situation in the headquarters compound with their own eyes, none of these patrols chose to wait outside the compound.

Noma in the building naturally knew that reinforcements were coming from outside the headquarters, but he sent several people in a row to contact the troops outside the compound, but none of them were shot and killed by Lu Yuan in the courtyard. For the time being, Lu Yuan's noma was helpless, so he had to stop this stupid behavior of constantly sending Lu Yuan's head, and at the same time, he also acquiesced to the reinforcements outside the compound to stay put. Noma, who was already ready on the first floor, was waiting for the attacker to appear, and a large number of Japanese troops waiting outside the compound were also waiting for the opportunity to appear, but Lu Yuan showed no signs of moving.

"Boom... Boom..."Just when the Japanese soldiers on the first floor were relaxing a little from the long wait, two * suddenly fell from the ceiling of the corridor on the first floor, and these two * exploded before they fully hit the ground. After thinking about it for a long time, Lu Yuan finally decided to fight the Japanese army downstairs to the end, and also dug a hole in the floor and then threw it*, but Lu Yuan chose not to dig the hole this time, but directly chose the corridor.

A few breaths later, there was also an explosion at the other end of the corridor on the first floor, and the culprits who caused the Japanese troops on the first floor to pay a heavy casualties were also two*. There were continuous explosions in the building, and the Japanese soldiers waiting outside the compound gradually couldn't sit still, they would never have thought that Lu Yuan, who was surrounded by the Japanese troops in the building, would have such sufficient ammunition. With a full-view map in hand, Lu Yuan knows how many Japanese troops there are downstairs, and there will definitely be no mistakes in the empty space.

Noma and the others on the first floor, who were abused by Lu Yuan*, would have thought that the other party would have such a means, and the thick floor slab did not seem to be a little difficult for Lu Yuan. After another series of continuous explosions, Noma and the others, who couldn't bear it anymore, finally set up a wooden ladder under the outer wall of the building, tried to climb into the room on the second floor, and attacked Lu Yuan. The open window on the exterior wall of the second floor looked like the big mouth of a monster, and several Japanese soldiers climbed into the room on ladders in succession, but they all immediately stopped moving.

I'm going crazy, I'm really going crazy, Noma, who was almost blinded in one eye by a *shrapnel, is going crazy, and he's never met such a difficult opponent to deal with. The gunshots rang out one after another, mixed with explosions, and seeing that there were fewer and fewer soldiers on his side, Noma, who had been fearless, was finally afraid. Noma wasn't really afraid of death, he just didn't want to consume the lives of his soldiers in this way, and if he continued like this, maybe in the end, there would be only a few people left, including himself.

"Boom..."There was a tremor on the ground, and the clever Japanese troops on the periphery not only drove armored vehicles, but also brought several light and heavy machine guns. The small bean chariot lived up to expectations, firing the first shell at the headquarters building from afar, and accurately hit a window on the second floor, and then a salvo of light and heavy machine guns blocked all the windows on the second floor facing the compound. These Japanese troops on the periphery were not stupid enough to think that this wave of suppressive firepower would be able to kill the attackers, all they wanted was to suppress the other party and provide convenience for Noma and the others in the building.

Noma and the others in the building were preparing to evacuate, and after the reinforcements on the periphery provided fire cover, Noma and the others rushed out of the building, and soon crossed the burning military trucks and appeared in the courtyard of the headquarters. Noma, who left the building, originally thought that on the way to evacuate, he would definitely encounter another attack by the attackers, so he chose to walk in the middle of the front, and even the rank mark on his collar and the command knife on his waist were removed.

Noma, who took off his rank badge and command knife, looked no different from ordinary soldiers, but contrary to his expectations, Noma, who was mixed with ordinary soldiers, withdrew from the headquarters compound all the time, and was not attacked again by the attackers. Noma was very surprised, but after the bean chariot in the courtyard fired again, it was hit by a gunshot from the third floor, and Noma only knew that the attacker had moved back from the second floor to the third floor.

Lu Yuan used tables, chairs and benches to build a high platform in a large room on the second floor, as long as he stepped on this high platform, Lu Yuan could return to the third floor at any time. Noma, who had already withdrawn from the headquarters compound, naturally didn't know about this, he just needed to make sure that the attacker was still in the building, and Noma even thought that he should stop the attack at this moment, and just surround the place and wait for dawn before making a decision.

But among the Japanese troops on the periphery of the compound, not everyone was as calm as Noma, and there were many people with higher ranks than Noma, so his proposal was immediately ignored. In the attack on the headquarters, first of all, most of the officers, including the commander Lieutenant General Kaga, had been confirmed dead, and secondly, the soldiers guarding the headquarters building had also suffered a large number of casualties, so no matter what, the Japanese troops outside the compound could not swallow this breath at this moment.

The noma, which had been gathered on the first floor, had been safely evacuated, and only the attacker was left in the headquarters building. Several officers with higher rank than Noma discussed privately for a while, and decided to continue the attack on the headquarters building, and if they could not solve the problem before dawn, they might open fire and destroy the headquarters building.

Noma was excluded from the decision-making level, but those Japanese officers did not, deliberately blocking the news and their decision from Noma, and when Noma learned that the Japanese army might destroy the entire building, Huang Yong, who was known as Keijiro Hashimoto, was a little secretly panicked. Huang Yong is the first time to meet a person like Lu Yuan, a master who can cause such trouble and losses to the Japanese army, but he has to fall into death like a moth to a fire, Huang Yong doesn't understand what Lu Yuan thinks, but he definitely doesn't want to see Lu Yuan die here.

Huang Yong thought that Lu Yuan, who was still in the headquarters building, was in a dead situation, and these Japanese soldiers outside the compound naturally thought the same way, but they didn't know that after Lu Yuan returned to the third floor and fired at the bean chariot in the courtyard with a heavy sniper rifle, he returned the same way and quietly went down to the first floor. The building has basements that were originally used as temporary prisons, but are now empty.

What can a vacant basement be used for? Here in Lu Yuan, it can be used to pile up dirt, and pile up the dirt he collects with the storage space. The Japanese army outside the courtyard was still countermeasures, and Lu Yuan had already dug a tunnel from the basement, and the excavated soil not only filled almost the space in the basement, but Lu Yuan also piled up the excess soil into the room on the first floor.