Cheng Yanqiu didn't rush to attack, more than ten hours have passed since he entered Vault 909, even if Cheng Su was defenseless before this, then the entire castle must be ready now, and attacking rashly will only give the other party a good opportunity to wait for work.

Whether it is Cheng Su or Cheng Yanqiu, they all know very well that this battle must be the last battle between the two Although they have the same blood flowing in their veins, but in many cases, the bloodline does not necessarily represent love and family affection, selfishness, **, greed, jealousy and even hatred, these things will not only be diluted because of blood relationship, but will also intensify.

The vacant military camp gave Cheng Yanqiu a temporary foothold, and hundreds of soldiers were temporarily stationed two kilometers away from Cheng's home.

There was food in the barracks, but the safety of this food was not guaranteed at all, and no one knew whether Cheng Su's personal guards would put poison in these foods when they retreated, so the soldiers could only eat the dry food they carried in their backpacks.

There were no guns or shouts in the vast underground space, and it was as quiet as a huge tomb, but everyone knew that it was just the last quiet before the storm.

This battle will be fought to the death.

The boxes of bullets were dismantled, the soldiers chewed cold and dry food in their mouths, and their hands were constantly pressing bullets into the empty magazines one by one, but fortunately, the private army of the Cheng consortium also used a large number of assault rifles that used ten-millimeter caliber full-power bullets, otherwise, the soldiers brought by Cheng Yanqiu would probably have to abandon their weapons and use the firearms of the surrendered private soldiers.

Although the 10mmx55mm steel core bullets are used, the firearms used by the soldiers of the "organization" are completely different from the firearms used by the private soldiers of the program consortium, whether it is the range, shooting accuracy or the quality of the guns themselves, the ten-millimeter caliber rifles produced by the organization are far stronger than the guns equipped by the Cheng consortium for private soldiers, after all, in terms of cost alone, the resource points required to produce a rifle used by the "organization" soldiers are almost able to equip three private soldiers of the Cheng consortium.

Note that instead of three rifles, this equipment includes uniforms, helmets, boots, gear, body armor, etc.

Even the weapons used by the Cheng family's internal security forces are several grades worse than those of the "organized" soldiers.

As for the "Viper" special forces under Cheng Yanqiu, there is no unified requirement for the weapons they use, and the team members all choose their favorite equipment, of course, and they need to solve logistical problems such as ammunition themselves.

……

"We found four 57mm anti-aircraft guns in the camp that the retreating Cheng private army had no time to take away, as well as hundreds of shells, and after inspection, none of these things have been moved, I think we can use them." Ghost Face walked into the room and said to Cheng Yanqiu, who was wiping his pistol.

Cheng Yanqiu also knew that these anti-aircraft guns were brought down from the ground at the beginning, although there was no need for anti-aircraft firepower in the underground space, but after the anti-aircraft guns were flattened and used as large-caliber machine guns, the huge power was enough to inflict a devastating blow on infantry or any lightly protected targets.

It's just that the power of the 57mm anti-aircraft gun is still a little too small when facing the city wall of the Cheng family's main house.

"Leave a group of people to operate these four anti-aircraft guns, which can be used as fire support to suppress the enemy on the city when we attack, as for wanting to directly blast the city wall open, there is basically no possibility." Cheng Yanqiu has lived in the Cheng family's main mansion for several years, and he is naturally very clear about the defense capability of this castle.

"That's what I mean, besides, do you think about how this battle is going to be fought? If we had attacked the city in the usual way, we would have to have at least several times the strength of the other side to take down the castle, but now the situation seems to be reversed. Ghostface asked.

"Therefore, the method of using soldiers, ten is to surround it, five is to attack it, and if it is doubled, it will be fought, and the enemy can divide it, and if it is less, it can be defended, and if it is not, it can be avoided." This is the original words from "The Art of War", although Sun Wu lived in the era of cold weapons, but in the battles that could not use the powerful strategic weapons of the old era, this sentence still has great reference value.

Cheng Yanqiu now has five hundred people in his hands who can be put into battle, to be precise, counting himself and the ghost face, a total of five hundred and sixty-one people, and now in the castle opposite, Cheng Su's subordinates also have more than a thousand soldiers.

Although in terms of combat effectiveness, equipment and morale, Cheng Yanqiu's soldiers are much stronger than Cheng Su's side, but the strong city walls and various city defense equipment are a factor that cannot be ignored.

In the Hellens Line, the players of the alliance relied on the strong and tall walls to block the Kuroshio Tide that was 100 times their size, and the role of the city wall is self-evident.

"Look, this is the structural diagram of the Cheng family's main house." Cheng Yanqiu took the tactical tablet on the table and opened a drawing file.

"The general shape of the Cheng family's main house is hexagonal, the six fortresses are neatly divided on six points on the periphery of the main house, the distance between each fortress is two hundred and twenty meters, and it is connected by a wall four meters thick and eight meters high.

"From the very beginning, the road of assault was not going to work." Ghostface nodded, "Is it possible to dig a tunnel and sneak in?" ”

Cheng Yanqiu shook his head and said: "The rock formation in the area where the Cheng family's main house is located is very hard, and in order to excavate such a huge underground space, the Cheng consortium's working capital chain was almost exhausted, and tens of millions of tons of cement were used in order to pour the foundation directly below the main house. ”

"......" Ghost Face frowned, "Then what are you going to do, I'm just a soldier, war is my profession, but commanding operations is not." ”

"From above." Cheng Yanqiu suddenly smiled and pointed to the top of his head with his finger.

Above the heads of the two of them is the ceiling of the room, through the ceiling, and three hundred meters upward, is the dome of this underground space.

"What do you mean...... We climbed over from above? ”

"Yes, then, falling from the sky" 2kReading.com