This rat attack was not as simple as Hua Yu thought.

The mech's transformation into an airplane shape to suspend a ground-penetrating bomb has been completed.

Just when the ground pilot was about to give the signal that he could take off, he suddenly changed to a signal to pause takeoff.

The pilot, with both hands raised, made a big fork, reminded Huayu that they suspended takeoff.

What's the situation? Huayu and they all felt that at the critical juncture when the battle was about to end, such a thing should not happen.

Huayu asked through the mecha intercom system, "Why did you stop taking off?" ”

The ground security commander explained that a group of UFOs were heading towards the area. Judging from the radar, it was a flock of birds, so the takeoff was postponed.

"Flock of birds, come back here?" Huayu realized that something was wrong.

"In the middle of the night, flocks of birds are coming. If it is a bird migration that passes by here temporarily and is stationed here all the year round, the guards should know, then the report should say that it is a bird migration, since there is no report that the birds are migrating, then it must be an emergency. The more Huayu thought about it, the more he felt that something was wrong.

Huayu proposed through the wireless intercom on the mecha helmet that everyone should be ready for battle, replace each person's two ordinary bombs with air-to-air missiles, add a multi-barreled salvo machine gun, replenish enough ammunition, carry it at full load, prepare for battle, and make adequate air defense preparations through a fortress.

A few minutes of effort.

Gu Qingxiu has made all the preparations, and the ammunition has been replaced, filling the maximum amount of ammunition supply. We are well prepared to deal with it.

Finally command, draw conclusions. The fortress is about to be attacked from the air and is ready for battle.

Huayu, Lancet, Wu Miaoshui, took off in advance and flew to the rat gate.

The rat generation, who had just exposed half of their heads, found that Huayu and the others flew over and got into it, and the rats thought that they would be able to safely avoid the bombardment. Unexpectedly, this time the bomb did not explode on the ground, but went into the hole.

On the contrary, the other rats on the ground did not suffer much damage. Those cowards or commanders never expected that they would die worse than those heroic rats.

Huayu dropped the first ground-penetrating bomb. The Lancet and Wu Miaoshui also dropped a ground-penetrating bomb later.

Strange things happen.

The ground-penetrating bombs dropped by Wu Miaoshui and the Lancet exploded one by one. The stones and dirt were still splashed up, but not with the violent roar of ordinary bombs, but with a muffled belly scream.

Hua Yu's attention was all focused on the ground-drilling bomb under his head.

The ground-piercing bomb never sounded.

"Am I so unlucky to throw a dud?" Hua Yu was aggrieved and depressed in the air, waiting for the result.

Just when he wanted to give up, he was ready to cast a second one to make amends. The bomb, thought to be a dud, was detonated. The sound is not loud, but the movement is very unusual.

The ground is like a water pipe with a solar term, one high and one low, until the city gate is almost raised first.

Fortunately, the aftermath of the bomb was broken here, otherwise the wall would have collapsed.

Hua Yu concluded that he had made it to the main cave. Either a siege cave or the lair of the Supreme Commander.

Huayu was in ecstasy.

Wu Miaoshui said through the intercom system: "Cave, have you made a great contribution again?" ”

The Lancet also said approvingly: "It seems that yes." ”

Hua Yu said: "Then let's hurry up and drop the second ground-penetrating bomb to solve this air-to-ground battle." ”

Wu Miaoshui immediately responded: "Order." ”

Another round of ground-penetrating bombs was dropped.

The rats suffered heavy losses, and it seemed that there was no way to organize an effective attack.

Enemy reinforcements also arrived at this time.

The enemy did not use any weapons. A large piece of black pressure rushed over. Passing speed tests, the enemy's speed reached 200 kilometers per hour.

When he met the enemy, Hua Yu found that a large area of black pressure was full of flies and mosquitoes, no wonder he could hear the sound of buzzing mosquitoes and flies flapping their wings from a distance. I thought it was the roar of a motor.

Mosquitoes and flies are also mutated, hundreds of times larger than before.

Hua Yu couldn't be surprised and thought too much.

The three of them were already surrounded by mosquitoes and flies.

Front, back, left, right, up and down, all directions are occupied by mosquitoes.

Surrounded by a group of people, Huayu businessmen, I don't know what to do.

"What should I do?" The lancet was squeezed by mosquitoes and flies, and there was no way, she asked.

Hua Yu replied: "Choose a multi-barreled cannon and evacuate immediately." The two of you are in front, and I am in the back. Be sure to use a multi-barreled cannon to expel a bloody road. ”

Wu Miaoshui understood as soon as he heard it. He moved closer to the lancet, throwing it back side by side, fighting as he withdrew, and the multi-barreled cannon could fire 120 rounds per second, and the mouth of the pipe sprayed flames like a fiery snake, and ordinary bullets came out of it angrily.

Wu Miaoshui and Lancet fired two multi-barreled cannons in unison, and finally reluctantly opened a narrow passage to retreat.

Huayu in the back is more difficult. The 1,200 rounds per second fired by the multi-barrel cannon did not stop the army of mosquitoes and flies from chasing after them.

As a last resort, Huayu launched two air-to-air missiles.

It took the two missiles to detonate within the estimated safe distance, temporarily suppressing the army of mosquitoes and flies.

Taking advantage of this recoil time, the trio finally withdrew to the fortress with difficulty. In the end, under the cover of the air defense of the fortress, the pursuers behind were blocked!

After the three of them landed, because Hua Yu had already exhausted all the heavy shells on his body, the shape of the plane recovered as soon as he landed returned to his human form, and Lancet and Wu Miaoshui were waiting to unload the heavy shells that had not yet been fired.

Platoon Commander Zhang rushed over.

Hua Yu reported the enemy's situation to Platoon Commander Zhang. Reflecting that the enemy is coming in a steady stream of thousands from behind, it is not possible to fight like this.

After listening to the report in Chinese, Zhang felt that the situation was serious.

According to our current strength, we will not be able to completely eradicate these pests. There is even a possibility that the fortress will be lost due to the constant attacks of the otaku.

After a discussion with Aohide Valley.

The two decided to use drones to fight.

At first, Platoon Commander Zhang was worried that the number of drones was too small and insufficient, and tens of thousands of drones had to participate in the battle at the same time to solve the problem, but it was also a problem in control.

Tens of thousands of UAVs are fighting in the sky at the same time, which is very difficult to control, and it is simply a task that cannot be completed.

Gu Qingxiu told squad leader Zhang that this is not a problem.

The latest drones have solved this dilemma.

This technology has long been successfully developed along with a new type of human-wearable mecha.

It's the new human-wearing mecha they wear. Each broadband person can be trained to control between 3 and 50,000 drones at the same time.

In this way, the three of them can control between 9 and 150,000 such drones.

The problem now is that the three of them have to quickly master this control technology.

Platoon Commander Zhang asked, "How long do you think it will take to train?" ”

Gu Qingxiu replied: "You can master it within 24 hours." ”

Platoon Commander Zhang ordered: "Dong Yu, Dong 2, Dong 3, I will give you twelve hours, you must complete the task." ”

Huayu Lancet Wu Miaoshui replied in unison: "Guarantee to complete the task." ”

Then Platoon Commander Zhang said to Gu Qingxiu: "The training task of the three of them is entrusted to you." ”

Platoon Commander Zhang solemnly saluted Gu Qingxiu and hurried to the command post at the gate.