Looking at his father-in-law's hard-working posture, Chu Yifei had the urge to laugh, and hurriedly looked down at his feet, so as not to be seen by the old man The corners of his grinning mouth were raised.

Fortunately, Carpenter Xie was all focused on the mountain road, so he didn't notice Chu Yifei's snickering, otherwise he would definitely give Chu Yifei a flying leg and kick his ass!

Just as the two of them were talking and laughing and waiting, a dull explosion suddenly sounded on a mountain peak behind them, followed by a small mushroom cloud of smoke rising up and rising straight into the sky, the sound was quite terrifying.

But Carpenter Xie and Chu Yifei just turned their heads to look at it, and then they turned their heads calmly, with a commonplace look!

They knew that this must be the Mo Yanran engineer experimenting with a new weapon, this kind of explosion would sound ten or eight times a day, at first they were still frightened to listen to it, but after a long time, people got used to it and no longer felt panicked.

At this time, there was a car horn on the mountain road, which reached Carpenter Xie's ears from afar!

Although the voice was still relatively weak, Carpenter Xie still heard it, and he shouted in surprise, "Here, the convoy is back!" ”

Chu Yifei interjected on the side, "Godfather, you are fifty or sixty years old, can you stabilize the point?" ”

Carpenter Xie glared at him angrily, "Get out of here, old man, I'm so happy, old man, get out of the way!" ”

Chu Yifei rolled his eyes when he said this, he had nothing to do about Carpenter Xie, so he had to move a few steps to the side helplessly, otherwise he might be hit by a flying leg sometime!

Luo Xiao's convoy was moving fast, the mountain road was relatively wide and flat, and some places had been widened and corrected by them, so it was very smooth to walk.

When the long convoy appeared on the mountain road, Carpenter Xie looked at the towering goods on the car, and grinned happily, "Hehe, it seems that it is another bumper harvest, good, good, good!" ”

The convoy approached the first checkpoint, then slowed down slowly, and finally stopped near the first checkpoint.

Luo Xiao pushed the car door, jumped out of the truck, and then looked up, and couldn't help but be surprised!

He didn't expect that in the more than one month since he left, the Tiger Roaring Ridge base had changed greatly, and even the original three checkpoints were different from the original.

The original checkpoint was nothing more than a stone wall with a wooden fence gate on it, and two simple lookouts were built on the hillside on either side of the stone wall.

And now the first checkpoint, the original thin stone wall has been demolished, replaced by a stone platform with a height of seven or eight zhang and a thickness of three or four zhang, blocking the entire mountain road.

The outer layer of the stone platform is made of one-meter square bluestone, and is divided into two layers, the inner and outer layers, the middle is filled with compacted soil, and the inner layer is made of concrete.

On the outside of the stone platform, a passage was built in the middle of the stone platform, three zhang high and two zhang wide, and a solid iron gate was installed, and if you want to pass through, you can only pass through this iron gate.

On the stone platforms on both sides of the iron gate, a group of five pillboxes arranged in a row was built, and each pillbox had eight holes, which could fire light and heavy weapons at the same time, and the entire mountain road was completely covered by crossfire, and there was no dead angle at all

Even in the passage behind the iron gate, the walls on both sides are covered with bullet holes, and enemies entering the passage will be greeted by a storm of bullets.

On top of the stone platform, there are four lookout bunkers, each of which is equipped with four high-precision infrared military cameras, which are connected to the monitoring room located in the stone platform through the line, where there are people on duty 24 hours a day.

In addition, two miniature radars are also installed in the lookout bunker, so that it can be monitored day and night, 24 hours a day, and the devils cannot escape these vigilant "eyes" whether they come from the ground or from the sky.

Luo Xiao looked at the sentry post that had almost been built into an invincible fortress, and was a little speechless: with such tight equipment, it is almost possible to catch up with the base facilities of the original era, it seems that the fun of the wild goose north wind has not changed!

"Luo Xiao, look at how this facility is, it's okay" Sure enough, as soon as he thought of this, Yan Beifeng opened his mouth on the side, "It's a pity that the power plant hasn't been built yet, otherwise I would have installed the wire-controlled automatic machine guns in the warehouse to ensure that the devils will be honeycombs when they come!" ”

"Automatic machine gun?!"

Luo Xiao could only smile bitterly, he had long expected that Yan Beifeng would not let go of that powerful weapon!

The automatic machine gun, which is automatically controlled by a built-in computer chip and has very sensitive sensors, will be attacked by any enemy target that appears within 150 meters of the surrounding area, and the best way to get rid of it is to destroy it.

The wire-controlled automatic machine gun is one of the newly successfully developed weapons in the arsenal, which is divided into two types: manual wire control and chip automatic control, and the models are mainly divided into three types: Arrow Rain 1, Arrow Rain 2, and Arrow Rain 3, of which the lowest rate of fire has reached 1500 rounds per minute, which is more than double the rate of fire of the Makqin heavy machine gun, which can be described as a storm!

In the ammunition depot inside the stone platform, tens of thousands of automatic machine gun bullets are stored in advance, which are connected by a special transmission device, which can achieve uninterrupted shooting, which is very terrifying!

It is conceivable that when this kind of rain of bullets instantly covers one hundred and fifty meters in front of the stone platform, it will definitely be a nightmare for the enemy.

Luo Xiao didn't have to think about it to know that this kind of perverted thing must have been invented by Mo Yanran, the genius of weapon making!

Although the metal storm invented by the Australians could theoretically reach tens of thousands of rounds per second, it later proved to be extremely flawed and was eventually eliminated!

Mo Yanran's invention of the Rain of Arrows type automatic machine gun is already one of the most advanced automatic machine guns in the world!

Although he was helpless about the bad taste of the wild goose north wind, Luo Xiao still didn't say anything, but commanded the soldiers to drive the truck into the first checkpoint.

Behind the first checkpoint, there were two more checkpoints, and when Luo Xiao saw that each checkpoint was similar to the first checkpoint, and even a few surface-to-air miniature missiles were installed on the third checkpoint, he was completely speechless!

With such a tightly protected Tiger Roaring Ridge base, not to mention the devils of this era, even if it develops in the next fifty years, it may not be able to defeat it!

But this is fine, at least it relieves Luo Xiao's worries and allows him to do it freely!

The convoy traveled all the way, passing three checkpoints and coming to a hidden parking lot located inside the third checkpoint.

Before the car was stable, Carpenter Xie ran over with Chu Yifei.

…………

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