"Get out of the way—" The Heavy roared, and a stream of hot iron poured out of the swirling machine guns, and the Outer Skeletons that had burrowed into the hole flew up in unison like dead leaves swept by the wind, flipped out of the cave.

The air in the bone mound was thin, and the scorching gas from the muzzle of the gun was like a hurricane blowing out of the hole, making it difficult for even the unshot skeleton man to gain a foothold.

The swarming Outer Bone Men poured into the entrance of the cave in a general manner, and the number reached its climax in an instant, and the crowding of the Outer Skeleton almost blocked the entrance to the cave.

The Heavy had to withstand a continuous burst of high-intensity recoil to keep the Gatling gun up to its maximum rate of fire in order to hold the hole, but thousands of rounds were fired in a dozen seconds, and the nails that held the Heavy in place were pulled out of the ground by continuous tearing.

It was not an easy task to hold the hole where the outsiders were frantically attacking with only one machine gun, and several fighters with shooting angles also joined in the shooting, constantly knocking down the outer skeleton in their sight.

"Howitzer-" The battle entered a fever pitch in the shortest possible time, Ye Fei's blood pressure rose vigorously, and he unceremoniously took over the command.

A soldier with a rapid-fire howitzer immediately took two steps forward, the barrel of the outer weapon case stretched out from the box as he secured himself, and the high-explosive anti-personnel grenade poured into the hole at a rate of three rounds per second, and the outer skeleton that had burrowed into the passage was swept away in a continuous explosion like an ant colony that had been swept away by a flood.

Although the firepower of the Gatling gun is strong, it can never get rid of the shackles of straight-line killing, and unless the skeletons are lined up, they can only increase the power by increasing the rate of fire.

The grenade, on the other hand, is an out-and-out face-killing weapon, and it doesn't feel as exciting as Gatling. But the lethality is far superior to that of machine guns.

Hidden in the shadows, the spider robot conducted an alternative live broadcast outside the cave, faithfully recording the whole process of the Outer Skeleton's attack.

From the perspective of the spider cyborg, the entrance to the cave occupied by the commandos is crawling with dense exoskeletons. Looking at the momentum of the Outer Skeleton Man, it seems that the hole where the commandos are hidden is the sewer pipe, and the raging Outer Bone Man is the water that is desperately draining.

Every grenade explodes, a large area of out-of-control exoskeletons will be blown out of the hole, some of them are so mutilated that they can't die anymore, and some of them are still dancing and alive in mid-air, and even turn over after landing and get up and re-enter the battle.

The narrow hole limited the speed at which the Skeleton could pour in, and the Heavy, who had lost his target, immediately lowered the rate of fire from the Gatling gun. Only when you see the outer bones will you fire a few shots. However, Gatling's reaction speed is much slower than that of a rifle, and most of the targets are snatched by other fighters, and the machine gunner, who has just made a splash, is almost an idler.

The howitzer also slowed down his firing, but he was smashed on the helmet by Ye Fei's punch: "There are outer bone mongrels outside." Don't worry about missing out. Keep shooting for me. When are the shells running out, when will they stop! ”

"Yes!" The gunner responded loudly, and the rate of fire of the howitzer was immediately restored, and the sound of tom fire was in a row.

The entrance to the cave is no longer blocked by a large number of exoskeletons. The grenade was fired straight out of the hole, and the dull sound of explosions was incessant.

After the grenade is shot out of the hole, it will fall to the ground in an arc, and can only deal with the enemy who is still on the ground, and the gunner cannot see the landing point of the grenade, so he can only rely on the picture transmitted by the spider robot to indirectly understand the effect of killing, and adjust the angle of the shot according to the explosion point.

What made him depressed was that the gravitational pull of the bone mound was too low, and the grenades flying outside the cave always had to fly a long distance before they landed, and even if the outer bone people did not climb the wall, they were concentrated under the wall, so that a single bombardment could only blow up a few inconspicuous unlucky eggs.

The howitzers were powerless against the Skeletons who had climbed up to the wall, and the number of Skeletons pouring into the hole gradually increased, and the Heavy opened again.

The gunner, who kept shooting, suddenly had an idea, changed the bump fuse to a delayed fuse, and aimed specifically at the outer skeleton man who crawled into the hole, and the grenade did not explode immediately after shooting the outer skeleton man, but knocked the outer skeleton man out of the air, and the grenade blocked by the outer skeleton lost its speed and fell, and smashed directly into the large pile of enemies gathered under the wall.

From the perspective of the spider robot, the grenades that fell into the enemy group exploded dozens of exoskeletons with a single shot, and the number of kills and injuries increased by more than ten times at once.

"Well done!" Ye Fei praised without hesitation, "All pay attention, don't kill all the enemies, leave a few for the gunners." ”

"Yes!" The fighters responded enthusiastically.

The rapid-fire howitzer had only one hundred and forty shells, and a quick shot had already consumed the shells, and the fighters who could not intervene in the battle simply helped to get some shells and played the role of logistics soldiers.

The frontal battle was fought vividly, and the warriors guarding the rear of the passage also caught fire with the Outer Skeleton Man who came in a roundabout way, and more than two dozen commandos were blocked in this passage by the Outer Skeleton Man, but none of the fighters felt hopeless, and even a few nervous people could not be found.

The narrow passage at the exit is the most suitable terrain for defense, and there are enough exoskeletons, but if they want to attack, they can only rely on the number to fill in. And the more than twenty fighters on the commando side only need seven or eight people to guard the two ends, and they can even take turns to rest in three shifts!

Moreover, there is enough ammunition in the centipede cart, and with the current offensive intensity of the Outer Bone Man, there is no problem in guarding it for three days and three nights.

In less than three days and three nights, the bone dogs hovering on the outer layer will attack and the back road blocked by the boundary can be reopened, and in fact, only the frontal enemy will have to be dealt with.

However, what Ye Fei was thinking about was not to wait for help, but how to attack!

The battle entered the stalemate stage, Ye Fei established communication with the other scattered troops through the transfer of the spider robot, their experience was similar to that of the first squadron, and the position was similar to that of the first squadron, all of them were near the dividing line between the outer layer and the middle level, and there was no one who really entered the middle layer so far.

Ye Fei didn't say a word of nonsense, and directly sent the picture of the black bone man eating human flesh to everyone, and marked the location of the black bone man on the digital model: "Don't say that I'm unreasonable, I don't care what you think." I want this black bone man, a living black bone man, no matter which unit catches it, the soldier is promoted to the captain of the detachment, the captain of the detachment is promoted to the captain of the squadron, the squadron leader is promoted to the captain, and the captain is directly promoted to the commander of the regiment, officially. In order to capture the black bone man alive, he has reached the point of unscrupulous means, and he does not hesitate to sacrifice the dregs of feudalism that is promoted to become rich.

He shouted it out on the public channel, and there was silence in the communication after the voice fell. The warriors were stunned by the meaning of the words.

What is it? This is naked temptation!

China's armed forces have always been a post-war meritorious service. When will you be able to make a pre-war appointment? But then again, as a nobleman among the Outer Bone People, the White Bone Man is not even qualified to stand in front of the Black Bone Man, even if he no longer understands the social structure of the Outer Bone Man. I can also guess how high the status of the Black Bone Man is.

The Black Bone Man is not far off, if not the lord of the Outer Bone Clan. Capture a skeleton alive. After the war, there is the possibility of being promoted to the next level, and if the black bone man is really captured alive, it is not even much to be promoted to the third level. Ye Fei only promised to be conservative when he was promoted to the next level.

"Boss, that's what you said!" The saber was like chicken blood, as if the whole body was burning, and the whole person sharpened the knife, and he couldn't wait to rush directly into the core of the bone mound now.

"The army has no jokes!" Ye Fei also let go, isn't he just a regiment leader? Great, he went directly to Nie Jianrong.

Finding the Minister of Defense for the position of a regiment commander, Ye Fei is unprecedented, but he is definitely the only one in this era.

Sensei said that the position of a regiment commander, even if he is a colonel, is not as troublesome as the Minister of Defense, okay?

One sentence ignited everyone's blood, and there was more than a saber for the horses?

The monkey quietly became more energetic in his actions, and had been hesitating whether to leave the wolf cub who had left the bone dog and advanced alone, and without saying a word, ordered the troops to speed up.

"Listen to me, it's true that I want to capture the black bone man alive, but it's not the soldier's life in exchange, do you understand?" Ye Fei sternly vaccinated the officers who were overwhelmed by blood, he didn't want the soldiers to take unnecessary risks in order to capture the black bone man alive, let alone unnecessary casualties.

"Yes!" There was a neat answer from the communication, and I don't know how many people shouted at the same time.

After arranging the next strategy, Ye Fei clenched his fists hatefully and secretly thought: Dog's outer bone mongrel, no need for a battleship, Lao Tzu will still penetrate your kennel!

Suddenly, the bull's eye of the black bear's resentment appeared in front of Ye Fei's eyes: "Boss, you have killed me." ”

Ye Feiden was stunned: "What did I do to you?" ”

The black bear Zhenzhen said: "Don't you pit me, you go with me, how can I get ahead of them?" Besides, if my first squadron catches the Black Bone Man, will you catch it or I will catch it? ”

With Ye Fei here, the supreme command of the first squadron is not in the hands of the black bear, he just wants to rush in, and he has to see what Ye Fei means first, which greatly restricts the black bear's play, seeing that the position of the regiment commander is about to be missed, how can he not be in a hurry?

Ye Fei understood what the black bear meant, but he was unwilling to return the command of the first squadron to the black bear himself, so he couldn't watch the excitement on the side, and after thinking about it, he said: "You can command the second squadron or the third squadron, if they catch the target, it will be yours." ”

The black bear rolled his eyes: "Then I might as well find a way to change to those two squadrons." ”

"Whatever you want." Ye Fei didn't want to make much effort on this topic, "You have the final say in your troops, I will try not to interfere." ”

The black bear was waiting for this sentence, and roared excitedly when he heard it: "Did you hear it?" It's up to you how you live the rest of your life - all the howitzers are concentrated in the front, and the passage will be blown up for me in the back! "He, the acting head of the regiment, has been working for a long time, if he is successfully taken to the position by someone else, where will his old face go?

He had reached the point where he had fought on his back, and he didn't want to leave a way out for himself at all. Anyway, the passages in the bone mound lead in all directions, and there is no need to take this road when returning.

"Damn, slow down!" Ye Fei hurriedly stopped.

"Boss, didn't you say you wouldn't interfere?" The black bear almost didn't cry.

"Don't bother, the bone dog is still behind, if you want me not to interfere, don't give unreasonable orders." Ye Fei quickly found a spider robot close to the outer meat gate on the digital model, and after sending a recording, he ordered the robot to pass through the meat gate and leave the inside of the bone mound to contact the Aquila.

The black bear gritted his teeth and agreed: "The howitzer is firing at full speed, blast me out a way!" ”

One howitzer can only ensure that the outer skeleton cannot attack, and three howitzers are put together. A full-scale counteroffensive was immediately launched.

The method of slowing down the grenade with the body of the outer skeleton was used by the three gunners, and it was almost impossible for others to fill the leak, and all the outer skeleton people who rushed in were knocked out of the curd.

It's not that the Dao is not the luck of the black bear, the enemies gathered outside the cave are always the ones at the beginning, and the battle for such a long time has not attracted any enemy reinforcements, which is not a small anomaly.

Most of the outer skeleton men in front of him were killed by a wild and indiscriminate bombardment, and the black bear felt that the time was ripe, and immediately ordered: "Full speed forward, the third squadron of incendiary bombs is finished!" ”

Since this mission was mainly to deal with the Exoskeletons, most of the surface kill weapons were high-explosive anti-personnel grenades. Other than that, only a small number of incendiary bombs were brought. The fighters of the third detachment immediately threw several incendiary grenades to stop the enemy from trailing.

After a few small explosions, the blue-white flames completely sealed the tail of the cave, and several outer skeleton figures who could not dodge were swept away by the flames, and they were instantly charred and charred at a speed visible to the naked eye.

It is true that the attacking exoskeleton man is cannon fodder. But they are also living creatures. There is a natural fear of flames in high temperatures. Involuntarily retreated.

Moreover, the high temperature of the combustion also decomposes the nearby odor particles, which indirectly causes the communication barrier of the Outer Skeleton Man, and he can't even smell the command if he doesn't retreat.

A squadron suddenly rushed out of the cave at the command of the black bear. Everyone turned on the flight system and flew in mid-air, hitting all the outer skeletons by surprise, the soldiers were full of firepower, quickly swept down all the enemies in sight, in order to eliminate the enemy as soon as possible, the soldiers did not hesitate to use their own powerful weapons, rockets, lasers and electromagnetic cannons fired at the same time, and fought a hearty war of annihilation.

Only three Heavy were depressed, and they carried bullet boxes, which were inferior to Gatling's effectiveness in accurately firing rifles at low enemy densities.

The black bear simply arranged for the three of them to take care of the centipede cart, and only after all the enemies were cleared did the centipede cart drive out of the passage.

Fortunately, the centipede cart is a multi-purpose transport device, and its main role is to accompany the commandos and provide necessary supplies. Therefore, the commandos have the ability to centipede carts, even if they can run on the ground or fly in the sky, otherwise the twenty or thirty meters high drop from the hole to the ground alone is enough for everyone to be busy for a while.

The warriors took the initiative to surround the centipede cart in the center, and the black bear took the lead in rushing into a passage.

He had chosen a target to enter the middle of the bone mound long before he rushed out, and the warriors followed the black bear, leaving only a large corpse of the outer skeleton behind him.

A few minutes later, the flames blocking the passage ran out of fuel and gradually extinguished, and the Exoskeleton who was responsible for cutting off the back road couldn't wait to rush into the passage, but the passage was almost melted by the flames, and it only took a few Exoskeletons who rushed in front to become crispy roasted grasshoppers in a short instant.

The Outer Skeleton didn't know what creepy was, but their simple consciousness also knew that they couldn't rush in, so they waited until the heat in the passage dissipated before they passed through the passage and returned to the assembly cavity - from the beginning to the end, the officers of the Outer Skeleton didn't think that they could go back from the other passages.

However, there was only a piece of stump and broken arm left in the hollow, and the enemy did not even leave a shadow, and what was even more helpless was that there were too many passages here, and the outer bone man couldn't figure out which passage the enemy had drilled into, and he didn't know where to chase if he wanted to, so it was in vain that the black bear laid several tricks in the passage.

Time is victory, the black bear leads the team to move forward quickly, and the outer skeleton people encountered on the way are all killed with the most fierce firepower, which is an efficiency.

After passing through the dividing line between the outer and middle layers, there is no longer a traffic point similar to the assembly space, and there are countless options for the path to the bone mound, and the thick and thin black bear deliberately avoids the large hollows where there may be a large number of enemies, and picks small hollows to walk.

No matter how many Outer Bone People there are in the passage, there can't be many, and even if the small hole is full of Outer Bone People, it can't withstand the fierce attack of the first squadron. The black bear led the team to march forward, and in the blink of an eye, it went dozens of kilometers deep into the bone mound again, and even Ye Fei didn't expect the speed of advancement to be so fast.

The bone mound is the lair of the outer bone people, not the efficient underground base of humans, and the passages here are all oblique passages at a certain angle, rather than vertical elevator shafts.

Every time he descends a kilometer of vertical distance, he needs to walk more than a dozen kilometers, and the black bear, who is constantly moving in circles, can't help but complain: "I knew that the road was the most difficult and had to be attacked strongly, so it was better to make a hole in the bone mound directly." ”

Ye Fei secretly smiled and didn't speak, in fact, he was already doing this.

The spider robot that returned to the surface of the bone mound, and the order given to the Aquila was to immediately start digging a shaft on the surface of the bone mound that went straight to the core area!

Before entering the bone mound, Ye Fei was worried that the shaft that pierced the surface of the bone mound would destroy the environment inside the bone mound, and if the abnormal death of the captured people was caused by robbery, it would be broken.

However, after entering the bone mound, it was found that the air composition here was similar to that in the biological warship, and the oxygen content was even smaller, only 14 percent.

The limit of the oxygen content that humans can withstand is 12%, and human beings will breathe and pulse faster in an environment where the oxygen content is only 14%, but this refers to the fact that under normal circumstances, the air pressure in the bone mound is only two-thirds of the standard air pressure, that is to say, although the oxygen content in the air of the bone mound is 14%, due to the lack of air pressure, the oxygen content here is less than 10% below the standard air pressure!

Humans in such an environment can experience nausea and vomiting, lose consciousness and eventually die. It is simply impossible to survive for a long time, and if the captives are still alive, then they must still be wearing protective gear, and those who do not wear protective equipment will certainly not survive now. (To be continued......)

PS: Personally, I think it's a good day to be in shape.