Night had fallen.

Finally, the wire ropes were tied to the iron posts.

All the positions of the iron pillars and the height of the wire ropes were strictly based on the data provided by Zhou Sen, and no one understood what it meant, but the refugees now have established a certain foundation of trust in Zhou Sen, and they believe that Zhou Sen has a reason to do so.

The entire M23 fortress is surrounded by iron pillars, divided into four circles, each of which is planted at a distance of about 20 to 30 meters, and then the height of the wire rope is about 5 meters at the highest, and the minimum is about 1 meter from the ground.

There are three wire ropes in the farthest circle from M23, one is five meters high, one is three meters high, and one is one meter high, and the inner approach to M23 fortress is two one-meter-high wire ropes, and the last wire rope is also three wire ropes, which are five meters, three meters and one meter.

It is worth mentioning here that the height of the iron pillar itself is more than seven meters, and the depth of planting into the ground is two meters, which is very strong, and the ground is reinforced with special glue in the warehouse.

There is a large amount of special glue in the warehouse, which is in a diluted liquid state like water, but as long as it penetrates into the soil, it will immediately solidify the loose soil into hard as iron in just ten minutes.

Intercept the Iron Cockroach!

When the wire rope was tied to the iron pillar, General Vaal understood the purpose of these iron pillars and wire ropes, and it was obvious that these wire ropes could intercept the ironclad cockroaches, of course, not to completely block the ironclad cockroaches, but to make the ironclad cockroaches unable to charge normally, so that they could not use their speed advantage to form an overwhelming crush on the fortress.

The most terrifying thing about the ironclad cockroach is to gather into a tide, and then charge in the same direction without fear of death, this way of charging is the nightmare of mankind, even the steel mecha weighing nearly 100 tons can not withstand this suicidal charge, under the crazy attack of the layers of ironclad cockroaches, the mecha will easily fall, and once the mecha falls, it is basically difficult to stand up, because, the dense iron cockroaches will gnaw madly, Its corrosive saliva palate gnaws can gnaw through the cockpit's bulkhead in a fraction of the time.

In addition, in addition to the iron pillars and wire ropes on the periphery, the interior of the M23 fortress has also been reinforced, all the broken holes have been welded, and a lot of steel plates have been welded on the steel walls in the courtyard, like a canopy, with a height of about two meters, which is extremely large, and almost all the walls in the courtyard are welded with this kind of steel plate canopy.

The commanding heights of several snipers were also reinforced, but the reinforcement in these places was very special, with some seven-meter-long iron pillars welded around the posts, densely packed like hedgehogs.

Why is the height of the outermost and innermost wire ropes different?

Why are the middle two loops of wire rope only one meter high?

What is the function of the steel plate canopy?

General Vaal's curiosity was at its peak, and for now, he could only guess at the role of the hedgehog-like pillars of iron where the snipers were located, and their existence was supposed to make it impossible for the ironclad cockroaches to kill the snipers in the first place, creating a hunt for the refugees who were armed with overclocked magnetic blades.

Now, night has completely fallen, but high-altitude satellites can still see the activities of ironclad cockroaches on the ground, at this time, the number of ironclad cockroaches around Fort M23 has reached an extremely terrifying value, all over the mountains, even if you look at it on the holographic video, it gives people an incomparably spectacular feeling.

The battle is on!

Just when General Vaal was curious, Fort M23 actually took the lead in attacking, and snipers from several commanding heights began to shoot with hot-line sniper rifles.

The Hotline Sniper Rifle is the most efficient long-range weapon for killing ironclad cockroaches, and as for the king of melee weapons, it is the overclocked Magnetic Swinger.

Above the walls of Fort M23, there are a total of eight sniper positions, seven of which are located above the steel walls and one on the roof of Fort M23.

The deputy leader is a retired colonel with high military qualities, and he has twenty-one snipers for seven sniper positions, that is, three snipers for each sniper position. In addition to the three snipers, there are also three refugees armed with overclocked magnetic blades, who are responsible for clearing the ironclad cockroaches that climb into the sniper position.

The three armed overclocking Magnet Blade refugees also have a number of grenades, which can be of great use when it matters most.

The most important sniper position is the sniper position above Fort M23, which has twelve snipers, who are also military personnel, and are responsible for long-range fire support.

In the M23 fortress, there are more than 30 retired soldiers, and now, these soldiers are responsible for sniping ironclad cockroaches at the commanding heights, while the remaining 100 or so refugees are providing support or medical treatment.

Everyone has to fight, but the division of labor is different.

Whether you can survive or not, tonight is the most important night.

Thirty-three snipers attacked first, and at this time, the ironclad cockroach was still two kilometers away, but it was already within range of the hot wire guns.

Ironclad cockroaches were killed.

Zhou Sen sits in the command room, and he is able to monitor his surroundings through the holographic scanning system at the end, and he is also able to direct the snipers to shoot. Now, every target at which everyone shoots must strictly follow Zhou Sen's orders.

What seems like a casual shot actually has a clear goal.

Zhou Sen was disturbing the ironclad cockroaches that had gathered.

The ironclad cockroaches shot by the hot-line guns all gathered in a certain direction, and this kind of shooting caused a commotion in the gathering of ironclad cockroaches.

Zhou Sen gave a death order, not allowed to shoot the ironclad cockroach, but only to shoot and injure the ironclad cockroach, the so-called shooting wound is to shoot the huge body of the ironclad cockroach, not the fatal head.

The commotion of the ironclad cockroach is also because there are too many injured ironclad cockroaches, they are not completely dead, but desperately struggling, the power of this painful dying struggle is huge, and this power interferes with the march of other ironclad cockroaches.

Ironclad cockroaches are not human after all, although they can charge into battle without fear of death, but when they are injured, their bestiality cannot be controlled, and discipline becomes empty talk.

At present, thirty-three snipers shoot and injure one ironclad cockroach every ten seconds, that is, thirty-three ironclad cockroaches can be shot each time, and after each shot, they will adjust the direction and shoot again according to Zhou Sen's instructions.

Shooting and injuring thirty-three ironclad cockroaches at a time will cause local chaos in the ironclad cockroach army, and the significance of changing positions every ten seconds is that this local chaos will continue to increase.

Of course, everything that Fort M23 did was disorganized in the eyes of General Val, because when the human soldiers were fighting against the ironclad cockroaches, they were trying to eliminate the ironclad cockroaches as much as possible, and now Zhou Sen's actions were like child's play.

It's time to charge!

Zhou Sen sat in the command room with a smug smile on the corner of his mouth, his plan was successful, the patience of the ironclad cockroaches had been exhausted, and they rushed towards the M23 fortress like a tide, thousands of troops and horses, like an overwhelming tide, the whole earth was trembling.

General Vaal at the base sighed.

Obviously, Fort M23 is coming to an end, because there are only more than a hundred refugees in the fort at present, and the number of ironclad cockroaches around it is at least more than 100,000.

What is the concept of more than 100,000 ironclad cockroaches?

That is, one person has to kill a thousand ironclad cockroaches, which is simply an impossible task for a poorly equipped refugee.

General Vaal guessed that Fort M23 would not be able to survive the first round of the Ironclad Cockroach's charge.

Thirty-three hot-line sniper rifles began to fire more frequently, and instead of shooting aimlessly as before, they were each responsible for shooting in an area, and the three refugees armed with overclocked magnetic swingers also picked up long-range weapons to shoot. The snipers on the MS23 fort assisted in shooting, mainly at overlooked corners.

At present, there are more than 50 refugees shooting, and they keep annihilating the ironclad cockroaches with all kinds of weapons in their hands, and the ironclad cockroaches are shot one by one, but the ironclad cockroaches behind them are one after another, and they immediately fill the gap and charge forward without fear of death.

The wasteland is surging.

Ironclad Cockroach Tide!

In just ten minutes, the ironclad cockroaches that were originally scattered in the wilderness formed a tide of ironclad cockroaches.

The most feared thing by human beings is that the ironclad cockroaches will become a tide, and after the tide, the ironclad cockroaches will become extremely fierce and not afraid of death, and there will only be one thought in their simple brains - rush forward!

Ay!

Seeing the ironclad cockroaches gathering into a tide, General Val sighed again, he knew very well the horror of the ironclad cockroaches after the tide, they were not only not afraid of death, but also broke through the defense line built by humans in the way of stacking arhats, the steel walls that were more than ten meters high did not mean anything to the ironclad cockroaches, they only needed a charge, they would pour into the fortress like a tide, and then, kill all the active targets in the fortress.

Before General Vaal could sigh, the next scene petrified his expression.

When the ironclad cockroach tide rushed to the first wire rope, it was intercepted by the wire rope, in fact, the gap between the three different heights of the wire rope can easily drill into the ironclad cockroach, but that refers to the way of drilling, not the charge.

Because there are three wire ropes, the trick of causing the ironclad cockroach to quickly stack the Arhat cannot be implemented, after all, the height of the top wire rope reaches five meters, and the height of the lowest wire rope is one meter, both of which hinder the normal running of the ironclad cockroach and stacking the Arhat, and the most ingenious is the wire rope in the middle, the height of this wire rope is just enough to block the jumping ironclad cockroach.

The jumping ability of the ironclad cockroach is extremely amazing, but the height of three meters happens to be the trajectory of its jump.

The three wire ropes immediately stopped the speed of the ironclad cockroaches advancing like a tide, and they had to drill in from below at full speed, and at this time, many ironclad cockroaches who did not know the truth behind were charging fearlessly, and the ironclad cockroaches in front slowed down again, one slow and one fast, and immediately, the ironclad cockroach army fell into chaos.

The worst thing is that when they slow down and cross the first wire rope, they face the interception of the second wire rope. The height of the second wire rope is only one meter, theoretically, this height can pass with a slight jump, but at this time, the ironclad cockroaches are crowded together, holding each other, and they have lost the space to accelerate and jump, so they can only honestly drill through from below......

……

Hunt Mode Activated!

More and more refugees joined in the shooting, but instead of climbing to the high ground on the city walls, they shot at the M23 fortress.

The lethality of this kind of continuous shooting is extremely terrifying, it can kill a hundred ironclad cockroaches in one second, even if it is not shot, it will be shot and injured, and the ironclad cockroach after the shooting will create obstacles for the ironclad cockroaches behind.

I see.

I see!

General Vaal looked at the wire ropes, and he had a feeling of sudden realization.

Those few wire ropes seem simple, but they can slow down the speed of the army of ironclad giant cockroaches, and even allow them to kill each other.

The function of the outermost circle of wire rope is to make it impossible for the ironclad cockroach to use its bouncing ability to cross the obstacles, because the height of five meters is enough to block the ironclad cockroach in the air, in fact, there have been many scenes of the ironclad cockroach falling after hitting the wire rope in the air.

The second and third lanes no longer need to consider the bounce of the ironclad cockroach, it is purely for the ironclad cockroach to have to drill through from below, and in this case, the speed of the ironclad cockroach is once again delayed.

The fourth line of defense is multi-functional, and the three-layer wire rope makes it impossible for the ironclad cockroaches that break through the first three lines of defense to approach the steel wall at high speed......

……

Genius design!

Genius design!

Val couldn't help but secretly admire that the refugee leader of the M23 fortress was definitely a genius, and he used the simplest materials and the lowest cost to solve the problems that humans had been unable to solve.

Since the outbreak of the ironclad cockroach plague, human beings have not had an effective way to curb the ironclad cockroach tide, and even if there is, it is too expensive to promote.

Iron pillars, wire ropes.

There is no doubt that iron pillars and wire ropes are two materials that are inexpensive and easy to promote, and can be built in a matter of hours if you wish.

At this point, Vaal had already decided that he wanted to spread this experience to Sunshade, believing that with this defense system, the ironclad pythons would lose their speed advantage, and the chances of survival of those fortresses would be greatly increased......

……

The ironclad cockroach, which lost its speed, became a target for humans.

The lethality caused by more than 100 people shooting at the same time is extremely terrifying, because, the dense and overwhelming ironclad cockroaches do not need to aim at all, as long as they shoot at will, they can kill the ironclad cockroaches, even if they are shot wounded, they will cause trouble to the ironclad cockroach army, after all, the injured ironclad cockroaches will struggle madly, which will cause trouble to the same kind of charge.

A single shot can cause casualties to a hundred ironclad cockroaches, while a shot is about two seconds, that is, a thousand ironclad cockroaches can be killed in twenty seconds, and ten thousand can be killed in three minutes. Of course, this is only a literal figure, in fact, the kill data is much smaller, after all, many ironclad cockroaches are only slightly injured.

The wire rope and the non-stop shooting still dealt a blow to the unstoppable arrogance of the ironclad cockroach army, which was huddled together in the wasteland like snails, and finally faced a dense fire attack after drilling through the steel wire fence.

However, the difference in numbers between the two sides is too great, with more than 100,000 ironclad cockroaches and only a hundred refugees, and no weapons of mass destruction.

Under the absolute superiority of numbers, the ironclad cockroaches still approached under the steel city wall, but they had lost their speed, and after losing their speed, it would be a lot more troublesome to use the method of stacking arhats to invade the fortress.

Shooting at close range replaces shooting at long distance.

General Vaal was inexplicably nervous, he had never been nervous about the lives of the refugees, in his eyes, these refugees were cowards who had left their homes, but now, he hoped that these refugees would survive, because they were special.

Now, General Vaal even regrets not providing more advanced weapons earlier, such as mechs and exoskeletons.

It's a pity it's late!

Although these refugees are brave and good at fighting, General Vaal is still not optimistic about them, because, at this moment, under the city wall where the army of ironclad cockroaches has approached, it is impossible for more than a hundred refugees to defeat 100,000 ironclad cockroaches......

……