Chu Jungui grabbed Lin Xi, threw him behind the front cover, and shouted: "Hide, the next wave will fight back!" He himself flew to the cover behind the side.

The thorn-backed beasts were in a commotion, and then divided into two waves, one wave continued to attack Lin Xi, and the other wave closed the distance and pursued Chu Jungui.

Lin Xi shrank behind the bunker and didn't move, and after a sharp whistling, the bunker shook violently, and it was instantly full of thorns. However, the bunker where Lin Xi was hiding was the only one reinforced with scrap bricks. Although the thorns are powerful, after continuously penetrating the mortar and bone fragments, there is no need to scrap bricks.

Lin Xi immediately probed, took a gun and aimed at the thorny beast that had narrowed the distance because of the pursuit of Chu Jungui, and directly pulled the trigger.

The rate of fire of the biomass rifle is not fast, so Lin Xi has no idea of showing off his skills, and honestly gathers fire. The long-range attack of the thornback beast was terrifying, but its defense was not very good, and it was beaten to a blur of flesh and blood by Lin Xi in a round of strafing, and fell down with a scream.

Lin Xi was just about to pursue the second thorn-backed beast, when he suddenly saw the group of thorn-backed beasts in the distance erect their backstabs again, so they immediately retracted behind the bunker.

In an instant, the sound of rain hitting bananas sounded on the bunker again, but this time the vibration that Lin Xi felt was much smaller. The power of the spikes seems to be much smaller than the previous round.

Lin Xi was overjoyed in his heart, leaned in again for a round of rapid fire, and put down a thornback beast. On the other side, Chu Jungui's pressure was greatly reduced, and he also began to counterattack, and the two formed a crossfire, and in the blink of an eye, they wiped out all the advancing thorn-backed beasts. The group of spinybacks in the distance shot the largest thorns on their backs and began to move closer.

As soon as they moved slightly, they entered the best range of the biomass rifle, and Chu Jungui would certainly not be polite to them, and sent several spinyback beasts to the western sky with a single round of strafing.

After annihilating all the thornback beasts, Lin Xi suddenly broke out in a cold sweat. Although there are not many spiny beasts, they are more dangerous than the previous beasts. If it weren't for Chu Jungui's alertness, the two would have been shot into a sieve on the roof of the cockpit.

"What is this?" Lin Xi palpitated.

"I don't know, the only hope is that they don't have a common leader. Chu Jungui said casually. Otherwise, the herd will have both high-speed melee and ranged attacks, and the difficulty will not increase even a little.

As soon as the words came out, Lin Xi and Chu Jungui were stunned and glanced at each other. Intuition told them that Chu Jungui was probably right.

Chu Jungui picked up a thorn and checked it. The thorns are moderately light and heavy, roughly about the same as iron, and the sashimi has spiral-shaped lines, and when fired at high speeds, they spin at high speeds, greatly increasing accuracy and destructive power.

Chu Jungui pondered for a moment and asked, "How long can our oxygen and water last?"

"There are too many battles, and the oxygen consumption is a bit large. We also have two oxygen rods that can last for 24 hours. As for the water, if the full cycle mode is adopted, it can last for two days. If you use the half-cycle mode......"

"Just use the full loop mode. Chu Jun said directly.

Lin Xi was stunned for a moment, speechless for a while. The so-called full-cycle mode means that the survival armor will collect all the water, filter, purify and remake, and then turn it into drinking water. In other words, whether it is sweat or urine, the armor will turn it into water again.

However, after all, Lin Xi had experienced extreme survival training at the age of ten, gritted his teeth, and said, "Okay." ”

In fact, the two of them also have hydrogen and oxygen rods, and it is not difficult to synthesize water at all, but it takes some time and energy. But now both are in short supply.

Obviously, Chu Jungui planned to enter the extreme survival state, and used all the raw materials and electricity to improve the defense. If it is only based on the current attack, the current defense facilities seem to be sufficient, but Chu Jungui does not seem to be satisfied, and is ready to do a big job.

At this moment, Chu Jungui had already specially divided more than half of the processing units in his heart, and made every effort to calculate the risks that he might encounter. He preset a series of scenarios, divided into seven difficulties according to the number and quality of incoming enemies, and was only in the second difficulty team.

In the final difficulty scenario, not only air units appear, but also long-range heavy fire attacks in the air, and the number is overwhelming. In the first wave of long-range firepower coverage, the current Chu Jungui and Lin Xi were not spared.

The second difficulty is the appearance of a small number of ranged troops. The third difficulty is the mixing of long-range troops and rapid assault units.

"Bullets and range. Chu Jungui quickly identified the key point of response.

He beckoned to Lin Xi: "Come and help." ”

Lin Xi ran over, lifted the two strange beasts with Chu Jungui alone, hung them on the disposal rack, and began to deal with them like Chu Jungui. Her movements were a little jerky at first, but she quickly became proficient, and in a few minutes, a strange beast turned into skin, bones, viscera, muscles, and blood, which were sorted and neatly arranged.

At this time, the organic matter detector contains the acid glands of the lizardbeast, and the next thing waiting to be tested are various teeth, spines, internal organs, and skin.

The organic matter separator is running at full speed, one furnace of animal blood and one furnace of animal meat, alternating. After adding the report given by the detector, most of the animal blood was separated from the purple thick liquid, and a small amount of liquid like water. Purple liquor can be used as a raw material for biomass explosives, and the water is rich in nutrients and can be used as food.

At such a pace, it is possible to guarantee that the workbench will be able to produce bullets without interruption.

Chu Jungui divided several processors and used the powerful performance of the fourth-level agent chip to redesign the large-capacity magazine of the biomass rifle. This one is easy to do and you get the results in a few minutes. Then Chu Jungui searched for the sniper rifle version of the Birth Element rifle. But this time, instead of producing it directly, he redesigned it according to the materials on hand.

This is a lot of work, even if it is an improved design on the basis of the existing one, the level 4 chip will take a full four hours. The main reason for this time-consuming is that the composition of the material is unknown.

After arranging the research work, Chu Jungui climbed to the roof of the cockpit, looked in all directions, and then used the auxiliary construction function to design a guard post on the roof of the cockpit.

Lin Xi below had already finished dealing with the ten alien beasts, and after a short break, she remembered something and said, "When the alien beasts want to attack us, they all have to pass through that high slope first. Shall we bury mines there?"

"Good idea!" Chu Jungui praised.

The two of them now have no shortage of explosives in their hands, and the bone fragments of alien beasts are also a good source of killing, and there is no shortage of raw materials.

As for the design drawings of mines, there are thousands of them in Lin Xi's chip alone. Although there are only a few hundred more design drawings in Chu Jungui's chip, they are all special things, such as anti-aircraft mines for low-altitude aircraft.

It is said that the design of the first agent also includes a mine that bounces off the surface of the planet and is designed to blow up the orbital fleet. Since the Special Operations Department called this kind of thing a landmine, Chu Jungui couldn't object to it.

The two discussed for a while, and jointly selected a few simple, cheap, durable, and vicious mines, and prepared to make this batch of bullets after they were finished.

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