On the wall of Fengcheng, Guan Feng and the others waited to look at the group of mutant beasts that were slowly approaching not far away. In their binoculars, at the back of the mutant herd, five huge mutant beasts stood like five hills.

"Damn, this is probably the biggest challenge we have encountered since the establishment of our Fengcheng base!" Luo Lie looked at the mutant beasts in the distance and said slowly: "It stands to reason that it shouldn't be, within a hundred kilometers outside Fengcheng, we will clean it almost every other week, and there are basically no high-level mutant beasts, not even a certain size of mutant beasts." ”

"yes!" Li Mingyu frowned and said: "There are scout bees, the entire China region is under our control, all the high-level mutant beasts are basically concentrated in the southern region, these mutant beasts seem to appear out of thin air, I think, there must be something wrong with this!" ”

When Guan Feng heard this, he hurriedly asked, "Is there any movement in New Kyoto recently, and there are several other Lingyan controlled cities, is there any situation happening?" ”

"No, not the slightest discovery!" Luo Lie is in charge of this, he is very sure.

"Is it possible that we didn't notice anything about the other party?" Guan Feng asked again.

"I didn't ...... I can't be sure! Luo Lie wanted to be sure, but after thinking about it, they were facing Ling Yan and these Landis, and the other party's technology was much higher than his side, if there was any sudden incident, it was really uncertain.

"I suspect that all this is the ghost of Ling Yan's gang, the people they sent to the underground ruins have not returned for more than five months, they must have suspected us, this time the mutant beast group besieged Fengcheng, maybe it was a temptation, or maybe it was a one-time attempt to solve us!" Guan Feng judged.

The communication on the walls did not last long. Because the group of mutant beasts that had been approaching each other had finally arrived at a distance of five thousand meters from the city wall. Five thousand meters is still the coverage area of the Fengcheng base's defensive artillery fire, but now the level of mutant beasts is very high, and the artillery fire is so far away. and does not inflict fatal damage on them.

Obviously, these mutant beasts were either very smart and knew the range of Fengcheng's defenses, or someone was in command.

Fengcheng has the existence of Mira who has obtained the inheritance of the starship, and the scientific and technological power is actually very strong, but unfortunately there is only one Mira, and he is not omnipotent. Moreover, although Fengcheng brings together a large number of scientific researchers in China, the emerging technology is still too high-end for these scientific researchers. Compared with the technology they know and the technology in the hands of these Mila, there is a huge gap in the middle, and it is very difficult to understand it!

Therefore, today's Fengcheng base is like holding a gold mountain in your hand, but if you want to exchange the gold mountain for money, you must dig it piece by piece before you can use it for your own use, which takes time!

"Roar!" Finally. A roar came from behind the mutant herd, and the roar came together. The mutant beast herd roared in unison as if they had been stimulated, and the roar was so powerful that Guan Feng and the others on the city wall couldn't help but change color!

After all, these mutant beasts in front of him, the lowest level has reached the appearance of five or six level star warriors. The existence of the seventh or eighth level is the backbone, and the existence of one-twentieth is above and below the ninth level, which is several orders higher than Guan Feng's martial arts level. According to the strength of the same level, mutant beasts are higher than humans. It was simply easy for this group of more than a million mutant beasts to slaughter the entire Fengcheng.

Fortunately, after several years of construction in Fengcheng today, although the strength of the human race itself has improved very slowly, all kinds of hardware defense facilities are not bad.

To the east, this is the front of the attack of the mutant beast herd, and the city wall of more than ten kilometers is already full of people at this moment, and they do not have the so-called guns in their hands, but stand in groups of two at the battlement of a city wall, on which a Gatling machine gun is erected. It's just that the current machine gun has a barrel twice as thick as Gatling's, and it has ten barrels in one circle.

More than ten kilometers of city walls, almost every five or six meters there is such a battlement, each battlement has such a machine gun, just imagine, how many such existences should be on the entire city wall.

This machine gun has a resounding name, it is called the Gatling cannon, the range is 10,000 meters, within 6 kilometers is the effective killing range, ten barrels per second can rotate once, that is, ten bullets per second. And the power of the bullets it fires, within 6 kilometers, can penetrate a five-meter-thick E-grade alloy plate, and then it will explode, which is huge.

In the universe, metal materials are divided into grades, the highest grade is S grade, followed by A, B, C, D, E, F, G and other grades, and G grade is the strongest alloy that can be made before the disaster on the earth, and E grade is the kind of alloy found in the second base of Fengcheng.

This Gatling cannon is just a conventional weapon for the city defense of the Fengcheng base, and there are thousands of giant cannon positions behind each city wall in the base, as well as laser cannon weapons on the towers behind the city walls.

However, the existence of all this is still a little inadequate in the face of the current situation, after all, the number of mutant beasts this time is too large, and the mutant beasts that attacked Fengcheng this time are generally of high level, and there are even five general-level mutant beasts.

Based on the experience of countless previous battles with mutant beasts, the best weapon to deal with these mutant beasts is a physical attack weapon like gunpowder. Those laser weapons, only if they are powerful enough to inflict lethal damage on high-level mutant beasts. And the range of the attack is very small. Therefore, in the face of a large number of mutant beasts with high levels, laser weapons are indeed not enough. It is really the skin of the outer layer of the body of a high-level mutant beast, and with evolution, it already has a certain ability to counteract light energy weapons.

"Li Mingyu, Lei Zheng, the next battle will be handed over to you, we will arrive at the predetermined location through the underground passage, and you can send us a signal at any time if necessary!" Seeing that the mutant beast began to move after the roar stopped, Guan Feng turned around and left directly, and said to Li Mingyu and Lei Zheng, who were still standing at the battlement, as he walked.

"There you go! Here we are! Li Mingyu and Lei Zheng said in unison.

Li Mingyu and Lei Zheng are the commanders of the city defense, and this is their post, while Guan Feng, these high-level and powerful warriors, are the sharp knife troops, and their task is still the same as before, entering the enemy's rear through various facilities leading to the outside of the city, and conducting harassment warfare, or local annihilation warfare.

"Artillery array preparation, angle adjustment, 28, 30, 27...... Launch! Three minutes later, the attack formation of the mutant beast was finally set up, and at the moment when the opponent was ready to charge, Lei Zheng immediately gave an order, and a series of data were reported, and a thousand giant cannons behind the eastern city wall quickly began to adjust the firing angle.

As the sound of the launch from Lei Zheng's mouth shouted, boom, boom, and inside the base behind the city wall, a huge roar sounded. Then I saw cannonballs with burning flames flying over the city wall and flying directly towards the mutant herd. A thousand shells, flying into the sky at the same time, that scene is also quite spectacular. It's like the launch of the trebuchet array during the siege of the Eastern Crusade, but the giant cannon array on the side of Fengcheng looks more powerful and more spectacular than that.

"Boom!" The shells of a thousand giant cannons fell to the ground, as if the sky was falling apart, the sound of artillery fire shook the sky, and the mutant beast group that was hit by the cannonballs suddenly lay down, and a huge crater with a diameter of more than 30 meters appeared in the center of the cannonballs.

The power of the giant cannon shells is huge, but the threat to these mutant beasts is still not enough, only the mutant beasts in the center range have been hit hard, but the mutant beasts on the periphery have only fallen because of the shock wave, and then they quickly got up and joined the charging lineup again.

Boom Boom! This time, it wasn't the sound of cannonballs fired from the defensive cannons, but the sound of the mutant beasts stepping on the ground as they gradually accelerated. The outer city wall of Fengcheng is full of tall buildings within a kilometer range, and these buildings are deliberately reserved and reinforced when the base is expanded, and used to create obstacles for mutant beasts. But now, these buildings have collapsed as mutant beasts swarm and run at high speed. Only a few of the buildings that were extra reinforced when they were built can still stand there.

In general, the buildings that were originally used to cause trouble for the mutant beasts did not show their usefulness at this time, and some of the buildings were in front of some huge mutant beasts, and they could not even hinder their steps, and were knocked down in the process of their charge, and then trampled by the mutant beasts that followed them, and finally became flat ground.

"Damn, the level of the mutant beasts this time is too high, and the powerful cannon bombardment can't make their charge stop at all!" On the city wall, Li Mingyu couldn't help but curse loudly when he saw the effect of the giant cannon being fired, it was really too bad, and it didn't even reach one-tenth of what was expected, so he could only enter a short-distance contact battle!

Of course, the outer city wall that is 500 meters high and 100 meters thick is still an insurmountable barrier for these mutant beasts in front of them, as long as the five general-level mutant beasts behind the mutant beast group do not move, they still have to spend a lot of effort if they want to break through the city wall!

"Pay attention to the artillery array, the angle firing adjustment is reduced by 3, and then each round of firing is reduced by 5, and after five rounds, it is locked and continues to fire!" Although the cannon seems to have little effect, the long-term bombardment can still cause a lot of trouble for the mutant beasts. After Lei Zheng issued an order to the artillery array, he immediately issued another order to the city wall: "Attention to all the wolf warriors of the city wall defense line, prepare for the countdown in ten seconds, cover five hundred meters away with vitality, and fire freely!" (To be continued......)