attack city

The underground world of the wasteland world is very large. Some are independent blocks, and many blocks are connected to form some extremely large underground networks.

Of course, because it is so large and complex, no one can fully detect it.

The same goes for the underground world in Langling. No one knows how big it is, and Liuli City has no way of fully detecting it.

There are several entrances and exits from the Liuli Trading Ground to the underground world, all inside Wolf Ridge. The nearest one is also the one where the mine tunnel is located, and you need to enter through a large river flowing through the canyon.

There are more than a dozen mine tunnels, some of which are the same ore veins, and many are different, most of which are far apart.

The characteristics of mineral veins in the wasteland world, especially metal mines, usually have multiple veins crisscrossing each other. There are often a large number of different types of metal veins mixed in near the veins of the same type of metal.

This is not just a matter of certain types of metal ores being doped with other metal elements, but rather the juxtaposition or intersection of completely different veins.

This is also the reason why most metals can be mined from the metal mines controlled by Liulicheng, as well as from the Xishan Mine.

Of course, iron, copper and aluminum are still the most abundant.

However, in terms of rare metals, Langling is quite rich in resources, much more than those at the Xishan Mine.

At least three cities should be stationed in each mine tunnel. Due to the current shortage of assisting defense cities, generally only the minimum number of three cities and occasionally four cities can be arranged in each round.

The shift changed at noon and set off in the morning. Along with Shenlong City were two other county-level cities, Qingcao City by the River and Changling City.

They guard No. 6 mine tunnel in three cities, and the time is one week, which is a standard shift time.

The shift time of each mine tunnel will be staggered as much as possible, and shifts will not be carried out at the same time.

Not only are a large number of cities taking over at the same time, which is prone to gaps in defense, but underground tunnels are also difficult to enter and exit a large number of cities at the same time.

Therefore, at this time, there are only three cities starting from them.

"Shenlong City is actually a county-level city. It's really unlucky."

Qingcao City by the river is also a female city owner. When scheduling, they only knew the name of the city but not its scale. They didn't see Shenlong City until they set off because Shenlong City was new.

"Ah, partner with a county-level city."

"There are too few cities to assist in defense now. It would be good to have a county level defense. There were times before when only two cities went together."

"I hope it's okay this time."

The same goes for Changling City. They have been here for a long time, and they used to rely on assisting defense and were promoted from the county level to the county level.

But if they really want to cooperate with the county level, they start to worry.

Of course, even if they have any ideas, it is useless. Whether they are worried that Shenlong City will not be able to handle it, there will be an accident, or they simply don't like a county-level city, it is the same. They still have to cooperate when they should cooperate.

Because this is the result of the schedule at Liulicheng.

Besides, there are always some cities that have to cooperate with county-level cities, so they just complained privately and could only line up together and head into the mountains.

Shenlong City stayed at the back, and Changling City was the oldest and most experienced, so they served as the team leaders and walked at the front.

The three cities were each separated by one kilometer, and moved forward at the same speed on the gravel beach beside the canyon river.

You can see a large number of urban crawler tracks on the ground nearby, as well as a smooth gravel road laid beside the river, almost parallel to the crawler tracks.

It was specially pressed out to drive transport vehicles.

When the city passes by, this road cannot be crushed.

Half an hour later, a large number of transport trucks came from the front and passed by on the gravel road. This was the ore dug out two days ago and shipped out this morning.

These transport vehicles have been modified, with larger compartments, and they basically do not transport people. They are specially used to transport ore and coal. The transport vehicles seen in coal mines before are also of this type.

The three cities did not stop, and each side moved forward along its own path.

The transport convoy passed quickly.

Finally, on the map, the target is getting closer and closer.

"Green Grass City by the River, Shenlong City, please note that we are three kilometers ahead to the entrance of the underground world. We will enter the underground world soon."

The Lord of Changling City reminded: "Once again, after entering the underground world, there will be radio interference, and we will not be able to communicate with Liuli City on the ground."

"Everything depends on ourselves."

"Our three cities must ensure that they can at least achieve triangular contact. Please pay attention to your location and distance from other cities at all times."

Triangular contact means that in the underground world, when a city can only communicate with one city, it can also ensure that all three cities can be contacted by transmitting information to each other.

For example, when a turning tunnel appears, a city is at the turning point of two tunnels.

The other two cities are in different tunnels. There is radio interference between the two cities and there is no way to communicate.

Then, they can achieve the purpose of knowing each other's respective situations by relaying information in the city at the turning point.

At this time, the city at the turning point is the key information relay city, which is usually held by the team leader. However, the underground world is too complex and there are many emergencies, so it is impossible to guarantee a unified formation every time.

"Dragon City, received."

"Green Grass City by the River, received."

"The entrance to the underground world is two hundred meters away. We are entering. Be careful to turn on the xenon lamp." Changling City was at the front, followed closely by the two cities behind.

Different from the underground world area that Shenlong City has entered before, the underground world here has very little light. Only a few rock walls and large caves emit light, so the interior is very dark.

You can see it, but it's not clear.

In such a dangerous place, relying on such light is tantamount to suicide.

In the wasteland world, power supply in the wild is a problem, so whether it is a city, a transport vehicle, or someone who is out for mining operations, they all have their own light source.

When we finally entered Shenlong City, we also turned on the front xenon lights, and the front was brightly illuminated.

The entrance tunnel is more than 400 meters high, allowing three county-level cities to enter side by side. A four-lane passage is also carved along the left rock wall for the exclusive use of transport vehicles.

Of course there is no such thing as a cable car. Mining in the wasteland world will use transport vehicles as much as possible to transport the mines. If this is not possible, they will lay rails and use cable cars, usually in deep mines.

They quickly entered the tunnel leading to Mine Lane No. 6 and passed through several large caves and many tunnels before reaching their destination.

A super giant irregular cave with a very rugged ground, including an underground mountain range more than ten kilometers long and a small river that is only more than ten meters wide at its widest point.

There is a large plain, some depressions and two small lakes, and the rest are small uneven hills.

There are four natural tunnels in the entire cave, but only three of them can be entered by the city, and of these three, only one is located on the mountainside of the crater, and can be detoured to the flat ground, which is the way they came in.

There are two rock walls in mid-air, which require floating in the city to enter.

Another tunnel is only about three meters high in most parts, and the narrowest part is only half a meter. It is only suitable for people to pass through, and it is also on the rock wall.

The mine tunnel is at the foot of the mountain. Because the tunnel dug out is crooked, it will go directly deep into the underground part of the cave wall.

The other three cities for the shift are already waiting there.

Seeing the three cities of Shenlong City, they said hello, confirmed each other, and began to gather from the garrison point, enter the crater, file out of the tunnel, and return to the Liuli Trading Ground.

"Qingcao City by the river is stationed under the No. 1 Rock Wall Tunnel, Shenlong City is stationed under the No. 2 Rock Wall Tunnel, and our Changling City is stationed at the Ring Mountain Tunnel."

The rock wall tunnels are two tunnels on the rock wall in mid-air, and the crater tunnel is the tunnel they came from. This is the internal geographical name.

These three tunnels are exactly at three locations, forming a triangle. They are also passages for underground biological activities, so they are also key locations for assisting in city defense.

After the Changling City Lord made arrangements, he continued: "If you have any different opinions, you can raise them now."

"Okay, let's go to the hillside below Tunnel No. 2." Xiang Yang replied cheerfully.

The risks of the two rock wall tunnels are the same. Probably the only advantage of the crater tunnel is that the escape advantage is more obvious.

The problem is that if they need to escape, their mission will fail.

Once the mission fails, whether you can escape underground is also a problem. This is not the regular underground tunnels Xiang Yang encountered before.

Not to mention that you have to climb a mountain to enter the tunnel, the geography inside the tunnel is also complicated.

This is something only losers would care about.

Therefore, it doesn't make much difference which tunnel you guard.

"No problem, let's go to Tunnel No. 1." The Lord of Qingcao City by the river was the same, and he didn't have much opinion.

The three cities quickly assigned tasks and each stayed at strategic locations and were alert for any movement in the surrounding area at any time.

Of those who were mining in the mine tunnel, only the person in charge came out, climbed to a high place and made sure that the city that was changing shifts to assist with defense was in place, and then continued to enter the mine tunnel to give instructions.

The entire work process is almost the same every day. The more dangerous the work, the more they must follow the set work procedures, so they have also formed a huge inertia.

On the first day, everything was calm.

In the evening of that day, the Lord of Changling City specifically reminded the other two cities not to make any attempt to relax.

Of course, the work and rest schedules of creatures in the underground world are basically the same as those on the surface, and the biological clock will not be disrupted due to the lack of sunlight here.

So there are more nocturnal creatures underground.

But the night was very calm, there was no danger, and the sun continued to rise the next day.

"It's a pity that the sun can't be seen underground."

Luo Xiaoya was the first to get up to exercise, and then ran to the top of the city. This was also a kind of inertia. Since she started training, she would run to the top of the city every morning to watch the sun rise.

The whole morning was also very peaceful.

At two o'clock in the afternoon, there was a sudden "dong-dong-dong" sound.

"That county-level building is on your side. Be careful. There is a tunnel in mid-air. This is the sound of underground creatures moving. It is very fast. It will be there soon."

The Lord of Changling City reminded loudly that the radios in the three cities were always on, and independent communication lines were set up for the three cities.

Because he was anxious and afraid that something would go wrong in Shenlong City, he directly told them all the names they privately called Shenlong City.

The tunnel where Shenlong City was stationed was hundreds of meters higher than Shenlong City. Less than a minute after Changling City Lord finished speaking, there was a loud rumbling sound, and three giant creatures with a giant horn on their head rushed out of it.

come out.

"The underground rhino beast, a county-level energy behemoth."

Of the three underground rhino beasts, one rushed towards Shenlong City and fell directly to the top of Shenlong City. The other two jumped in the air and jumped to the ground.

Boom, the anti-aircraft city cannon on the top of Shenlong City opened fire, hitting the belly of the underground rhino beast that was planning to jump to the top of the city.

This was an absolute weakness. It directly broke open the belly of the underground rhino beast, and the shell exploded inside the body.

With a bang, this behemoth hit the egg-shaped defensive armor of Shenlong City and rolled to the ground, only twitching.

The other two have just landed successfully.

With a snap, a giant flail ball came from the air and hit one on the back. He was immediately seriously injured and fell to the ground.

This energy behemoth got up quickly, but the injury was too serious and it wanted to escape to the side, but its speed and reaction when injured were no longer the same as at the beginning.

The second blow of the city's fury hit it so hard that it lay there unable to get up.

Only one energy behemoth escaped, made a sharp turn, and slammed into Shenlong City with its sharp horn, causing damage to the city's defense armor.

But Shenlong City's second city's fury attack ended, and it went directly behind, making its second impact miss.

Boom, after Shenlong City retreated and distanced itself from the energy behemoth, Changling City took the opportunity to fire, hitting the energy behemoth's thigh.

After losing most of its mobility, this energy behemoth is basically waiting for death.

In less than ten minutes, all three county-level underground rhinoceros beasts that rushed out were killed, with only two shelling supports from Changling City.

"It's so strong. The continuous attack just now was really smooth. I killed two counties in an instant." Changling City and Qingcao City by the river were both silent.

The rhythm and method of Shenlong City's attack shocked them greatly.

Faced with such a sudden crisis and the siege of three county-level energy giants, ordinary cities cannot make tactical arrangements so easily and quickly.

Serious injuries are inevitable, but the defensive armor of Shenlong City was only hit once and hit by a collision, so the collision was a little more serious.

The single horn of the Underground Rhinoceros is still very strong.

"I guess he is a veteran who has been stuck at the county level for a long time, otherwise he would not have such strong fighting skills."

Changling City and Riverside Green Grass City could only think of this explanation. If they knew that Shenlong City would be promoted to the county level in just ten months, they would probably vomit blood.

They don't know that Shenlong City has fought many fierce battles. The core team members are also extremely experienced and their daily training is extremely strict.

Otherwise, where would such a strong fighting power come from?

Please remember the first domain name of this book: ._