Chen Mulin was very satisfied with the reaction of the water friends, and felt very satisfied, it was the first time since the live broadcast that he felt so cool.

That's right, he did it on purpose, in order to show off, to satisfy the vanity that he had not received for a long time.

When he was about to test fire the laser cannon, there was a sudden alarm, which was issued by the bioradar.

"What's going on?"

"Could it be that there are big cockroaches here, too?"

The radar screen was magnified, and four light spots appeared on it, of which a green arrow in the middle was its own position, and the other three were red dots, each of which was in different directions, the closest one was only 300 meters, and the farthest was less than 500 meters.

Looking towards the nearest target, it was indeed a large cockroach.

Then Chen Mulin fell into deep thought.

Where do these big cockroaches come from?

Is there a nest here?

Or are they just chasing from more than a thousand kilometers away?

Obviously, the first idea is unlikely, this is only a few tens of kilometers away from the base, and if there is a nest of large cockroaches, then they will appear long ago, and there is no need to wait until they poke themselves.

Then there is only one answer, these cockroaches are all chased here from the nest more than a thousand kilometers away, and there may be more cockroaches not far away, but the range of the radar is limited and cannot be detected.

After thinking about it, I was afraid for a while, if there was no defense system, the base would be lost soon, and my life would be in danger.

"Damn big cockroach!"

Chen Mulin gritted his teeth and said to the sailors: "Brothers, now I will perform for everyone, how were the cockroaches killed!"

[Barrage: Cockroaches, where did the cockroaches come from, why didn't I see them?]

[Barrage: No, there are big cockroaches here?]

"That's right, they're chasing after you!" Chen Mulin said his guess, and then pointed to the nearest one: "Then there is one, and there are two around besides that one." ”

[Barrage: I'll go, it's a big cockroach!]

[Barrage: Can't be chased, it's more than a thousand kilometers away from here!]

[Barrage: This big cockroach may really be chasing after it, otherwise it should have appeared a long time ago if it was so close to the base. 】

"That's right, there is no other possibility, maybe there are a lot of big cockroaches not far away, but unfortunately the range of the bioradar is not that large. ”

"It doesn't matter if they're chasing after them, or if the nest is nearby, they're going to die anyway!"

As he spoke, Chen Mulin aimed the laser cannon at the big cockroach and shouted: "Go die!"

A dazzling purple light shot out from the barrel of the cannon, instantly hitting the big cockroach, and in an instant, a cockroach the size of a cow was instantly shattered, leaving only a puddle of green slime on the ground.

"That's amazing!"

Chen Mulin was dumbfounded, originally thought that it was just to penetrate the big cockroach, but he didn't expect it to have this kind of power.

It would be nice if there was this set of armor when the big cockroach nest was in the nest, not only would it not be so embarrassed, but it would also not be so embarrassed if it could carry a cart of energy crystals back.

It seems that there was a disturbance when the big cockroach was killed just now, and the two big cockroaches were alarmed, and they found Chen Mulin standing on the stone mountain.

Unlike humans, they don't have the wisdom of humans, they didn't feel afraid when they saw their kind being killed in seconds, and even became even more violent, crawling in the direction of Chen Mulin at an extremely fast speed.

Although he was not afraid of them approaching, Chen Mulin did not give them a chance to approach, aiming at the target with two shots in a row, and the same two big cockroaches were also blasted into a puddle of green slime, not giving them a chance to resist at all.

"Invincible is lonely!"

Chen Mulin now enjoys this feeling very much, as if he has reached the full level of playing a game, and it is also a set of god costumes, see one to kill one, come to two to kill a pair, come to a group to do a group.

It seemed that he couldn't get used to Chen Mulin's snort, and the sailors began to complain again.

Of course, Chen Mulin has been prepared, he is here to pretend to be compared today, and he has already hidden the barrage after the exchange just now, and now he is out of sight and out of mind, and he is taking care of himself.

After testing it again, Chen Mulin also put away his playfulness and took off to return to the base.

On the way back, he also took a special look around, and sure enough, he found a lot of traces of big cockroaches, and found nearly 100 of them within 50 kilometers of the base alone, all of which were solved by him, so as not to attract a large number of cockroaches.

Although there is now a defense system, the defense system also needs to consume energy, and the power supply of power plants may not be able to withstand a large number of attacks.

The current defense system is primary, and the defense against large cockroaches is currently sufficient, and the disadvantage is that in addition to the weak underground defense ability, the energy consumption is also a big flaw, and at the same time of defense, it will cause a lot of waste of electrical energy.

Perhaps it will not be possible to see a large number of attacks in a continuous defense for a day or two, and after a long time, it will be found that the supply of electrical energy will not be able to keep up with the consumption of the defense system.

Now it can be delayed for a day, and it may not be possible to delay the development of the next level of defense system, but it can store a lot of electricity.

For the next three days, Chen Mulin would patrol and clean up the large cockroaches found within 100 kilometers every day, once in the morning and once in the evening, until the completion of the primary armored combat vehicle on the fourth day.

On this day, he started a new day's live broadcast and told the sailors one thing at a time.

"Brothers, it's time, today I'm going to go to the big cockroach's nest again, this time I must save face last time, turn over the big bugs, retrieve the energy crystal, and at the same time minimize the danger factor of the base!"

Today, he is going to come to Wei to save Zhao.

In the past few days, Chen Mulin found a problem.

Take the three cockroaches encountered by Test Ma Krypton 1 as an example, it is not how sensitive their perception is, they can be alarmed entirely because of the connection between the cockroaches, they can sense that their companions have been eliminated, and they can also communicate information to each other from a distance, as for how far away it is unknown.

This information was analyzed after patrolling in the past few days, and the death of another cockroach could be found at a distance of nearly a kilometer between the two cockroaches, and the number of cockroaches around them was increasing day by day.

If it goes on like this, the base will be very dangerous, so Chen Mulin thought of such a way.

Now the big cockroaches must have sent a huge number to chase after them, then their nest is empty, if they can really communicate the news to each other, then now is a good opportunity to break into the cockroach nest again.

As long as they learned that the lair was attacked, they would definitely return, Chen Mulin would beat them for a time difference, and then solve the temporary security problems of the base, and at the same time, they would also be able to obtain a large number of energy crystals.

With the number of energy crystals that can be seen with the naked eye at present, if all of them can be transported back, what if the big cockroaches invade on a large scale?