Metal umbrellas bloom over the base, intercepting all biomissiles. William still had time to shoot down several black-winged aerial beasts in the air with anti-aircraft cannons.

These huge air beasts, which are only a few kilometers high and fly very slowly, are live targets for the anti-aircraft guns of the fortress, even if they maneuver to evade, the shells are also terminally guided, and they can pursue themselves to ensure that they explode within a certain range of the target.

Seeing that the four umbrella air defense systems were fully fired, completely protecting the fortress in the air, William finally handed over the command to his deputy, and he boarded the mecha, lifted a single-barreled cannon of several meters long from the weapon rack, and inserted a magazine marked with a special eye-catching mark, and came to the city wall, waiting for something.

Joseph had risen from the ground and climbed the walls again.

The empty space outside the city, which had been blasted out by small nuclear bombs, had now been mostly refilled by war beasts.

However, Joseph was not surprised, and the beast tide outside the city was hit by this, and the thornback beast herd was almost wiped out, and a lot of lizardbeasts were reimbursed. This small creature that can become invisible likes to accompany the spinyback beast in its actions, and will often wait until the alien beast group is almost dead or injured before making a move.

It's just that the same conspiracy has been used too much, and even the stupidest people will find a solution. Joseph used a miniature nuclear bomb to deal with most of the spinybacks and lizardmen.

The Rhinoceros charged under a hail of bullets as always, but they were too slow and their sturdy bodies were not enough to look at the rapidly firing cannons that had increased the power of the fortress's walls. Dozens of giant rhinoceros beasts finally fell one by one before they could rush to the bottom of the city.

"Something is wrong, why are there so few giant rhinos?" said Joseph.

"There's nothing wrong with that! because they're all damn live missiles!" William was already a little angry. One after another umbrellas bloomed in the air, intercepting an endless stream of small living missiles.

In the blink of an eye, the ammunition stock of the umbrella system had bottomed out, but after seeing the power of biological missiles, William did not dare to let any of the missiles fall into the fortress.

At this moment, Joseph was standing in the position, carrying a huge rapid-fire cannon, constantly strafing the beast tide outside the fortress. As he strafed, he shouted, "Did you find out where the missiles came from?"

"Nope!"

"Won't you calculate the ballistics? Damn, I forgot they were alive again. ”

When another wave of live missiles was intercepted, finally no new missiles appeared. William stared at the sky intently, and did not dare to breathe a sigh of relief until a few minutes later.

"Gone?"

"It's gone...... Right?" William wasn't sure.

"It's just gone!" Joseph swept the last of the beasts into meat sauce and slowly lowered the muzzle.

William came to his side, looked at the devastated fortress, and suddenly sighed.

"What's the matter? Didn't we win? Why sigh when the casualties are still acceptable? You're not worried about those two little guys, are you?"

"Those two little ones don't need to worry, they won't survive. If they were smart enough, they should have changed places sooner. After a pause, William said, "After several days of replenishment, we have expanded enough defenses, and our combat strength has nearly doubled. I thought that I would be able to deal with it easily when I encountered the beast tide again, but I didn't expect that they almost broke through the fortress. If there were a few more waves of live missiles, we would have no ammunition left and would have to watch them blow up the fortress. ”

"What do you think will happen the next time the beast tide reappears?" asked Joseph.

William was silent and shook his head.

Joseph also sighed and stopped talking.

At base 2, Chu Jungui sat on the weapon tower at the top of the base in a daze as usual. Lin Xi next to him stood even taller than him, and simply stood on the barrel of the air defense tower.

She looked far away, and she didn't know what she was looking at. She had to stand here every day for the past two days and watch for a while, Chu Jungui didn't want to ask the reason, even if he wanted to, he couldn't ask, his brain was all used to analyze a very critical research project, a new type of hard composite material.

This composite material has the hardness of an alloy and the corrosion resistance comparable to that of biomaterials. In Chu's plan, the material will be used to produce a new generation of mechanical components to replace the old-fashioned transmission structures in weapon towers. In this way, the pointing of the weapon tower will be faster and more accurate, not to mention the invisibly increased power, but also allows Chu Jungui to consume less, and indirectly increases the number of weapon stations that can be controlled at the same time.

Subjects have always been a high priority for anything that can increase their firepower.

His research was going well, but it was suddenly interrupted by a cheer.

"The beast tide is coming!" Lin Xi shouted happily.

Chu Jungui was stunned, the beast tide is coming, is it such a happy thing?

Lin Xi didn't pay attention to the strange expression of the test subject, and directly ordered all the members in the communication channel: "Discover the beast tide, prepare to fight!"

Thanks to Lin Xi's excellent and meticulous planning, all combatants know what they are going to do in peacetime and which position they are in wartime.

Three red flares are raised in the base, an ancient way to notify the warriors who are out harvesting resources to return to the base.

The soldiers, who were still collecting resources, immediately jumped into the engineering vehicles and returned at full speed. The fighters on duty in the base rushed to the predetermined positions, and then quickly marked and took over the weapon station. The marked weapon station, under normal circumstances, Chu Jungui will not take over. Of course, when necessary, Chu Jungui still has the highest authority and can take over the control of any weapon station at will, including Lin Xi's.

From the discovery of the beast tide to the point of the guns in the direction of the beast tide at all the weapon stations in the base, it only took a few minutes. At this time, the beast tide forward had not yet approached within ten kilometers.

There was a dead silence throughout Base 2, and everyone was waiting for the beast tide to arrive. Although it is still far away, looking at the black oppression, you can know that the scale of this beast tide is far greater than before. Even some veterans of the lancers are sweating palms at the moment.

Chu Jungui had long regarded battle as a part of his life, fearless and not arrogant, just waiting for the arrival of the beast tide calmly, just like waiting for breakfast every day, without any fluctuations. Lin Xi also calmed down from the excitement, and in her position, a large number of barrels and barrels poked out.

At this moment, the little princess secretly connected to Chu Jungui's channel: "Jungui, such a big beast tide, will we die?"

"No, it won't. ”

Chu Jungui's voice was very calm, and the little princess was also infected and was not so flustered. However, she was still a little uneasy, and asked, "Can we really fight?"

"Difficult ......"

Chu Jungui's words made the little princess's heart rise suddenly.

However, he immediately added: "There are so many war beasts, you still have to kill them for a while." ”

Once again, the little princess had the urge to strangle him.