Three days have passed in the blink of an eye, and the Shadow of Doom Fortress has completely changed.

The original Doomsday Shadow Fortress is a typical federal fortress, with simple lines and gorgeous lines, and a staggered appearance. The walls are predominantly silver-gray tones, smooth and clean, and the main building is decorated with a dome with the logo of the lancer carved on it. From a distance, it looks like a minimalist work of art full of modernity.

And the Doomsday Shadow Fortress that fell into Chu Jungui's hands has completely changed, with many barbs on the surface, and it is still increasing.

These barbs are all large and small weapon stations, some are controlled by the warriors, and some are directly controlled by Chu Jungui, who can take over the control of any weapon station if necessary.

The roof of the main command building was originally arranged as a viewing platform, and troops could also be deployed in wartime. But now there are more than a dozen weapons stations of all kinds installed here by Chu Jun, and it has become an air stronghold and a long-range fire support point, and the beauty is gone.

Originally, the anti-aircraft defense zone and the long-range strike zone were sleek and mirror-like buildings, and the armor protection plates would only be opened in wartime. Now that all the armor protection plates are locked, Chu Jungui has built a series of weapon stations on them, and has also turned this area into a firepower point.

Whether it is Chu Jungui or Lin Xi, the weapons designed are more than practical, but not beautiful. As a result of the extensive use of biocomposites, these weapons look like limbs or organs of a living being, with natural textures that are imbued with primitive savagery and chill.

The factory area of the fortress is already stuffed with equipment, and Lin Xi's planning level in military production is quite high, if the large area is well divided, basically the materials will enter from this side, and the finished products will come out from the gate from that side.

Now 80% of the entire fortress's production capacity is used to produce weapons and ammunition, 10% is used for repairs and reinforcements, and only 5% is used for maintenance of life.

Chu Jungui had no needles and umbrellas in his hands, and no rapid-fire cannons, so he could only make up for it by manufacturing a large number of weapon stations. Fortunately, a large number of weapons stations using biocomposite materials are built in large quantities and quickly, and the supply of raw materials is sufficient, and hundreds of them can be built a day, but the only drawback is that the accuracy is a little poor.

But on Planet 4, it is basically a close battle within a few kilometers, and the slightest flaw in accuracy can be endured. The accuracy of a rapid-fire cannon like a fortress that can shoot a shell into a bathtub 10 kilometers away is useless.

In the past few days, Chu Jungui did not wait for a new beast tide, but waited for several good news in a row.

First of all, the two clones separated by Xiao Kai have grown very rapidly, and the volume has doubled in three days, and the growth rate is much faster than Xiao Kai. Under the Le Mans test, as they grow, the computing power has increased exponentially, and it has increased more than ten times compared to the original state. The current two doppelgangers already have the computing power equivalent to a first-generation biochip.

If it goes on like this, it won't take long to surpass the Cambrian.

The other piece of good news is that Le Mans is suddenly inspired again.

One night, Le Mans was chewing on a nourishing paste made from purple leaf grass, perhaps because it was too unpalatable, and suddenly he was inspired. He found that even if the purple leaf grass was made into a nutritional paste by the organic matter synthesizer, it was difficult to swallow, and it would have a slight tingling feeling, indicating that the power stored inside had never been exhausted.

With his academic excellence and keen intuition, Le Mans believes that there are unsolved secrets in the structure of purple leafy grass. After overnight research, he finally discovered that there is a magical microstructure inside the purple leaf grass. This structure is like an inclined grille that allows only electrons to pass in one direction.

The greatest application of this biological structure is to withstand the terrifying lightning of the ion storm layer. After a whole night of calculations, Le Mans finally found a way to magnify the microstructure. He used the Alien version of the Organic Editor to design a new type of material, which was printed as an extremely thin film and covered with a purified substance from purple leaf grass. Such a film and a layer of purple leaf grass create a completely new composite material.

Testing the material is as simple as setting up a drone, putting a layer on the outer bread, and then sending it straight to the storm clouds.

The trial was conducted privately by Le Mans. When the drone was in the air, no one in the entire fortress paid attention to such a small thing.

The drone quickly climbed high and flew all the way into the storm clouds.

Le Mans clenched his fists and was about to jump and cheer, when he saw a flash of thunder in the clouds, the drone burned and fell out of the clouds, splitting apart, and the wreckage burned in the air.

Le Mans's cheers suddenly stuck in his throat.

He looked left and right, and when no one was looking, he hurried to the entrance, trying to sneak back to the lab. At this moment, Chu Jungui's voice suddenly sounded in the communication channel: "What did you release just now?"

Le Mans trembled, "No! I didn't put it!"

Chu Jungui was surprised, "Didn't you put that drone?"

Le Mans knew that he could no longer deny it, so he simply stopped talking.

Chu Jungui continued to ask: "What kind of material is that drone made of? Is it a new material you are researching?"

Le Mans let out a long sigh and said wiltingly, "...... Yes. ”

"Why don't you tell me?"

Le Mans smiled bitterly, "I saw that you were busy, so I didn't say anything." ”

"How can you hide such a great discovery?

"Significant...... Discover? Significant?" Le Mans was a little confused.

"You want to research materials that protect against ion storms, right?"

“...... Yes. ”

"That's already worked. ”

"How, how is that possible?" Le Mans stuttered in surprise. He saw just now that the drone was about to burn to the point of slag.

"Wait a minute, I'll be right here. ”

A moment later, Chu Jungui had already arrived at Le Mans's laboratory, taking a closer look at the composite material that had just been made. The research report on this material is already in Chu Jungui's mind, and it is being handed over to the chip for research together.

Looking at a formed research report, and there was a physical object in his hand, it took Chu Jungui and the chip nearly half an hour to thoroughly understand the principle of this material. And Le Mans found the pattern overnight and produced a finished product, which is difficult to describe as genius. It can only be said that his wisdom is indeed inversely proportional to the hair on his head.

Le Mans stood next to him, a little nervous, rubbing his hands together and asking, "This thing...... Can it really work?"

Chu Jungui glanced at him in some surprise and said, "Of course it can be used." ”

"However, the drone just now was destroyed. ”

Chu Jungui understood why Le Mans had such a reaction, and said vaguely: "This is normal. It's already much better than the material of the Federation. ”

Le Mans breathed a sigh of relief.

Of course, Chu Jungui couldn't tell him that he saw that the drone was destroyed after at least a dozen thunderbolts in the clouds. That's not what humans should see.