Seeing that the road army said so, the girl in red also touched the round mines on the ground and said, "but the people who are buried around us don't know. What if they are blown up when they come back?"

After the girl in red asked this question, Ruan Bing and Ruan Xue also put their eyes on the road army, waiting for the answer.

"Don't worry. This is a G20 intelligent sensing mine. It can distinguish the enemy and the friendly side. As long as the enemy steps into their sensing area, it will explode. Our people will be ok if they step in. As for the principle, I don't understand. Anyway, that's what the introduction said." Lu Jun spread out his hands and explained to the girls.

Hearing the Lu Jun's words, all the women showed an expression of sudden enlightenment and touched these round induction mines again.

"Well, let's bury them separately. Dig a small hole and throw it in. Pay attention to concealment. If you find it in advance, you will be in trouble." The road army raised an engineer shovel and picked up an induction mine to the women.

Although it is far away from the Research Institute and they are safe, the silent Crusaders have searchlights and patrols, so they have to be careful.

When the women heard the order of the road army, they nodded one after another, picked up the engineering shovel and the induction mine, and scattered to work

In this way, in the next time, the road army and Ruan Bing spent time burying mines, and soon covered their place with mines.

However, in addition to this location, there were main roads and other places waiting for the road army to bury them. However, the road army found that the efficiency of the four of them was too low, and it was dangerous to rush across the main road.

Therefore, for the sake of efficiency and safety, the Lu Jun spent 5000 dragon coins to buy three small robots specially used to bury mines from the trading module.

These robots are activated by A-level crystals and have a cube of hidden space inside them, similar to the space of the road army's armed module, and can put a large number of mines in it.

There is also a high-speed rotating drill bit at the foot, which can instantly dig the ground and put the mine in. It takes less than a second to bury a mine, and the efficiency is much higher than that of the road army and others.

The most important thing is that these robots have bionic coating, which can integrate into the surrounding environment by using the coating in the daytime and at night, which greatly increases its concealment.

Looking at the small robots that have started to work, Lu Jun prayed silently in his heart that these robots and induction mines, which cost him nearly 10000 dragon dollars, must be effective, or he will lose a lot of money

With the passage of time, more than an hour passed quickly. During this period, the robot people worked very smoothly. They buried nearly 3000 induction mines around the Research Institute, and they have not been found.

Seeing the robots returning to their original place after completing the task, the road army was very satisfied and took all the three robots back for next use.

But the road army was also a little agitated, because after so long, they had no news at all. What's the matter?

Just as the road army was thinking, a deafening sound suddenly sounded from an unknown position in the distance, and a mushroom cloud rose. It was not necessary to guess that there was a huge explosion.

However, all this did not end with the explosion, because three seconds later, the road army found that the lights on the entertainment area were all dark, and the brightly lit scientific research institute was in a dark.

"It's them! They made it! " Ruan snow heavily waved a fist way, also with a bright smile on his face.

Hearing Ruan Xue's words, Lu Jun also nodded with a grin. Indeed, all this means that wood and others have destroyed the inner city's power system, and judging from the explosion, it is absolutely impossible for the power to recover in a short time.

However, before the road army had time to say anything, there were bursts of explosions in the entertainment and residential areas of the inner city. These explosions were very dense, probably hand grenades or rockets.

After the explosion, we can clearly see that the originally dark entertainment area and residential area are rising fire, and the spread speed is very fast, the dark night sky is bright red.

Seeing this, the road army and others knew that Anan and Beishi had started their operations, and they had come completely according to the plan of the road army. Everything was very smooth.

"Be careful! Someone's coming out! " Ruan Bing suddenly lowered his head to remind all humanity.

When they heard Ruan Bing's warning, they immediately lowered their bodies and looked at the Institute's location. They saw a large number of figures with flashlights or gun lights running out of the originally quiet scientific research institute. Their voices were very chaotic, and they seemed eager to know what was going on outside.

But in the case of lack of communication and power, they can not contact the outside in the scientific research institute, they can only look at the increasingly burning entertainment and residential areas.

Finally, the person in charge of the scientific research institute couldn't help but send several teams of city guards driving off-road vehicles to the entertainment area, hoping to find out the situation.

However, the road army laid a large number of mines around the scientific research institute. When these off-road vehicles reached a certain position and triggered the mines, only "Bang Bang..." was heard All the SUVs rollover and then exploded, and none of the people inside survived.In addition, a lot of smoke and fire rose from the location of the mine explosion, which is estimated to be the collateral effect of the mine.

Seeing this, the road army also danced his fists to express his inner excitement. He was too satisfied with the effect of these mines. Originally, he was worried about whether these mines could block the SUV, but he didn't expect to blow up the SUV directly, which was beyond his expectation

The defense personnel of the research institute who are also looking at all this are very upset. Due to the obstruction of smoke, they have no idea why the off-road vehicle explodes, so they can only sound the alarm of the research institute through fog.

But looking at the explosion and then into the quiet outside, the head of the scientific research institute was a little angry, once again did not give up sending a team of city guards out.

However, the city guards did not take vehicles, but chose to walk. They must see what was going on outside.

However, this team of city guards has just stepped into the area where the SUV exploded. Another burst of sudden loud noise, combined with smoke and fire, has directly "melted" this team of city guards into the night, and none of them can survive

Seeing this, the people of the research institute realized that they had been attacked, so they stood around the research institute with weapons and stopped going out. They thought in their hearts who were bold enough to attack the Research Institute in the inner city

"What if they don't come out?" The girl in red leaned against the army and whispered.

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