A decision has been made. Luo Li immediately started to act.

The first is to make a hanging device on the Ranger.

Because the nether energy was temporarily exhausted, he could only temporarily find some tools and use the most clumsy methods to operate them.

It was not until seven minutes later that a simple bracket was produced.

Successfully equipped three boxes of twenty-four rockets and four anti-tank missiles stored in the room.

Then, he removed the Ranger's two melee rifles and replaced them with sniper military rifles with higher power and range.

After these two transformations.

Luo Li's ranger abruptly changed from a melee-based armed combat robot to a mobile, small firepower fortress.

At this time, put it on the battlefield on the ground.

The extremely powerful firepower is enough to defeat a regular army of 100 people head-on.

After replenishing the ammunition, Luo Li returned to the refuge room.

The lieutenant colonel officer and his two subordinates were still gathered around a table, looking at a three-dimensional holographic map unfolded above with frowning eyes.

"Any breakout plans?"

Luo Li also moved closer to look at the map on the desktop.

The map appeared to be a blueprint for an industrial park.

From the water and electricity pipe network to the underground drainage channels, they are clearly marked.

In addition, the map is still connected to the monitoring system that has not yet failed.

Countless red dots representing intruders are distributed in various areas of the entire industrial park.

Moreover, the distribution of red dots is gradually changing from scattered to aggregated.

This means that the forces belonging to the industrial park have almost been wiped out.

A large number of troops belonging to the invaders broke away from the order of battle.

"No. They moved too fast. There are not many people left in the industrial zone."

The lieutenant colonel shook his head, looking embarrassed.

"Now as long as we walk out of this building, it is estimated that a large number of enemies will be besieged immediately."

"What about the sewer?" Luo Li asked. "Is it possible to go from there?"

"No. The sewers are too close to the ground to hide from their life detection devices."

The lieutenant colonel vetoed it flatly. It was obvious that he had thought about it before.

"Is it too close?"

Luo Li also felt a headache.

Knowing the details of the intruders, he didn't want to go out and confront them head-on.

That was not something his small body could bear.

But where can you escape if you don't fight?

While thinking, Luo Li turned his attention to the building he was in on the map, and finally stopped at the water pump on the sixth floor underground.

There is a pumping system installed there.

According to the design instructions on the map, it can pump groundwater up from a depth of more than 100 meters underground, and then supply the daily consumption of the entire building.

Stretching out his hand to press his forehead, Luo Li recalled the information he had once swept away.

"I read it in a geography magazine. The groundwater network in Odo City should be very complicated."

"groundwater?"

The lieutenant colonel looked puzzled, and followed Luo Li's gaze to see the pumping system. There was a flash of inspiration in my mind.

"You mean down the groundwater well?"

"That's right. The more complex the groundwater network, the more likely it is to be interconnected. And it doesn't matter how long they are, ten kilometers is enough."

Luo Li gestured on the map with his finger, and his thinking became clearer and clearer.

A distance of ten kilometers is enough to break through the blockade of the industrial park.

"As for the environmental issue, when I replenished the ammunition just now, I found that there are still a few cans of compressed oxygen cylinders over there. If you share one point, it can fully support the consumption along the way."

"What should we do when we go up? There may be hundreds of meters from the surface."

The lieutenant colonel officer was taken aback by Luo Li's whimsy.

"Dig up." Luo Li replied quite simply.

He raised the mechanical power arm, and the streamlined structure full of sci-fi style was full of indescribable power under the light of the refuge room.

"If the performance of this power arm is fully activated, it can tear steel. It can completely dig a channel in the rock formation."

Ordinary people who want to escape through the underground river can only die.

But in this world, there are still extraordinary beings like mechanics.

The underground is also an area where mechanics can survive.

"it is good."

Seeing that the plan was feasible, the decisive military temperament of the lieutenant colonel was inspired.

In any case, it is better to take risks than to break out directly.

He stood up abruptly.

"Let's prepare now and go down immediately."

"boom!"

The entire underground refuge room suddenly trembled violently, and the lighting system and the 3D map on the desktop went out with a bang due to insufficient power supply.

Only two emergency lights were left glowing dimly.

"It's an enemy attack! An enemy has discovered our place."

The lieutenant colonel's two subordinates gripped their submachine guns nervously, their fingers turning pale from excessive force.

The safety of the underground refuge is almost entirely based on the premise of concealment.

Once the enemy finds the entrance, it only takes a few minutes to go down to the fifth floor underground.

"A lot of people came, there should be two companies."

Compared with other people who are flustered, Luo Li, who is powerful in his own right, has more confidence and appears calmer.

He carefully observed the vibration above the ceiling, and quickly made a judgment.

"Go and move the oxygen cylinders, lights, and waterproof spray from the armory next door to the water pump area on the sixth floor underground. I'll deal with those enemies."

Assign tasks.

Luo Li took the Rangers first, and then took out a batch of grenades and remote-controlled bombs from the armory as combat supplies.

Rockets are expensive and difficult to obtain.

Luo Li didn't want to waste this kind of encounter unless necessary.

In contrast, he prefers to use cheap grenades and bombs.

Anyway, I can't take it with me, so it doesn't matter how I squander it.

After leaving the refuge room, Luo Li did not go far.

At this time, if you pass the elevator and emergency stairs, there is a high probability that you will directly hit the enemies outside.

He randomly found a utility room, and with the help of the surging power of the mechanical power arm, he punched through the ceiling and jumped into the upper floor with the Rangers.

Then I used the same process twice to reach the second basement.

"There is a situation on the second floor, please help!"

As soon as he stood firmly on the second floor, a group of intruders who heard the noise and came running saw Luo Li.

Next to him was the sight of the fearsome rangers armed.

"Bang bang bang!"

The first to react was Luo Li's Light Rangers.

The smart chip located at the core of the ranger recognized the enemy's position within one ten-thousandth of a second, and then moved the muzzles of the sniper rifles on both sides, instantly killing the two enemies running at the front.

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