Chapter 143 [Chain Thunderstorm]

Not only that, the goals of this batch of drones were quite clear. After entering the underground city from the northern passage, they did not stop or linger. Instead, they accelerated towards the outer city of Kukan Underground City.

Looking at the giant bearing pillar directly in front of the drone group, Chen Fan suddenly felt a thin layer of cold sweat seeping out of his back.

The omnics actually shifted their attack target to the load-bearing pillars of the dungeon!

Once these high explosives explode, causing the load-bearing columns to break and collapse...

The soil and rock formations hundreds of meters deep overhead will directly hit Chen Fan and others!
Thinking of this scene, Chen Fan did not hesitate, turned around and pointed the gun in his hand at the "self-explosion squad" composed of dozens of drones.

The two self-propelled floating guns behind them also completely changed their attack plan, pouring all their firepower on the dozens of drones!

The holographic sight provided by Yi flashed quickly in front of Chen Fan's eyes, and he pulled the trigger without hesitation.

The deep purple laser beam instantly exploded several drones acting as human shields. Before the surrounding drones could come over to fill the defense gap, extremely high-temperature blue bullets flashed through the air. , bombarded this gap one after another.

boom!
The flames of the explosion kept lighting up, and the surrounding drones rushed towards this defense gap like moths to a flame, trying to block the attacks from Chen Fan and the floating turret.

but……

The strength gap between the two sides is still too huge.

In just a few seconds, this physical defense wall built by a large number of drones was directly penetrated by a violent explosion and fire.

Without the obstruction of conventional drones, under the guidance of Yi, a deep purple high-energy laser hit directly on the drone loaded with high explosives!
laugh……

The silver-white metal shell glowed red instantly, and in the blink of an eye, a hole was burned into it!
boom! ! !
The moment the high explosives were detonated in advance, a crimson fireball emerged over the underground city. The fireball expanded rapidly and swallowed all the surrounding conventional drones into its belly!
The complex pipelines on the concrete dome fell off one after another under the huge shock wave. High-pressure gases and sparks of unknown composition escaped high in the sky. High-power fluorescent lamps that had worked hard for decades were also extinguished one after another. The underground was already in disrepair. The city seemed increasingly scattered.

The self-destructing drone carrying high explosives was destroyed in advance, and the power of the explosion did not affect the load-bearing pillars not far away.

But the look on Chen Fan's face did not relax at all. He knew in his heart that this was just the beginning!
It was just as he expected!
Amidst a rapid flashing yellow warning signal, a large number of conventional drones spewed out from the defensive gap in the western part of the underground city, and there were also a large number of self-destructing drones carrying high explosives!
As soon as they appeared, they rushed straight towards different load-bearing columns driven by the paddles!
boom! boom! ! boom! ! !

The two self-propelled floating cannons were at full power, and dark purple laser beams flashed over the underground city.

Although every flash means that a drone has been destroyed, as the defensive gaps in the western region continue to increase, the growth rate of drones in the underground city still far exceeds the upper limit of the self-propelled floating cannon at this time. ——Having not yet obtained formal investigator authority, the number of self-propelled floating cannons and the types of weapons they possess are extremely limited.

Finally, with the cover of a conventional drone, a self-destructing drone successfully broke through all fire interceptions and slammed into a giant load-bearing pillar!
Bang! ! !
A huge explosion roared over the underground city!

While a blazing fireball quickly engulfed the load-bearing column, a large amount of concrete debris was thrown out from the load-bearing column!

There was another violent, frightening violent vibration!

The flames of the explosion gradually dissipated, and the attacked load-bearing pillar appeared again in front of Chen Fan and others.

A huge gap has appeared on the load-bearing column that was originally smooth and complete, and thick, twisted steel bars were exposed from the inside of the load-bearing column.

A huge crack appeared from the gap and snaked to the bottom of the load-bearing column.

"Crack!"

A clear and loud sound rang over the underground city, suppressing the drone of the drone.

"Kaka...kaka..."

Like dominoes, the cracks on the load-bearing pillars are like lightning striking from high in the sky, constantly branching and spreading.

In just a few seconds, this crack occupied more than 50% of the load-bearing column!
Fortunately, under the watchful eyes of everyone, the spread of the cracks gradually slowed down and finally stopped.

"This can't go on like this!"

Chen Fan raised his hand and fired several shots. Looking at the fireball that instantly expanded and then slowly dissipated over the dungeon, he made a decision in his heart.

"One, prepare to release [Chain Thunderstorm]!"

【warn! 】

[The current location is a confined underground space. Chain thunderstorms may paralyze the underground city and cause irreversible damage to the load-bearing structure of the underground city. 】

[Investigators please reconfirm this order. 】

Bang! !

As the loud noise of the explosion sounded again, a shaking like the earth shook came from the area of ​​another load-bearing column!

Listening to the continuous clicking sound, Chen Fan showed a cruel look in his eyes:
"confirm!"

The moment the words fell, the two self-propelled floating turrets that had been following Chen Fan quickly took off under the control of Yi. Driven by the anti-gravity engine, their flight speed continued to increase, and in the blink of an eye they arrived at the dome of Kukan Underground City.

After a short wait, a light blue gas-like substance was continuously released from inside the floating turret.

Under the control of Yi, the floating turret shuttled back and forth among the intelligent drones.

This light blue, gas-like substance quickly spread over the entire underground city!
The omnic drones do not know the function of this unknown substance. They have never seen such a scene and they are still conscientiously completing their original tasks.

While expanding the defense gap of the dungeon, destroy the load-bearing structure of the dungeon!
For omnics, this process has been tested in several experiments - these omnic drones destroyed no less than ten dungeons by relying on the same method!
[Preparations for the chain thunderstorm have been completed. 】

After thirty long seconds, the electronic synthesized sound finally sounded in Chen Fan's mind.

Chen Fan slowly put down the PW-1 plasma launcher in his hand.

"Brother Fan?"

Beside him, seeing Chen Fan put down his pistol, Hong Chengdong's expression suddenly changed: "Don't give up! We still have a chance!"

Seeing Hong Chengdong's panicked expression, Chen Fan burst into laughter.

"It has ended."

Under Hong Chengdong's gaze, Chen Fan raised his head and looked up at the dungeon dome that was already filled with light blue material, and softly gave the final command: "Chain thunderstorm, start!"

……

Crack!

A strange plasma arc ejected from the self-propelled floating turret suspended in the sky.

Crack! Crack! !

Violent plasma arcs emerged from the interior of the two self-propelled floating turrets, turning into slender chains that quickly extended across the sky along the light blue material!
These dazzling plasma arcs instantly ignited the originally quiet light blue material!
At this moment, the sky above Kukan Underground City seemed to turn into a pool of thunder!
Endless electric arcs dance in the thunder pool!
Bang!
The fluorescent lamp that had been in service for decades exploded in the endless arc!
The already dark dungeon fell directly into darkness!
Not only fluorescent lamps, but also intelligent drones flying at high altitudes, as natural conductors, have naturally become the target of arc fire!
Countless electric arcs jumped out from the light blue thunder pool, making a zigzag pattern in the air, and struck hard on the surface of each drone!

boom! boom! boom! !

Continuous explosions of fire lit up over the dungeon, illuminating the dark dungeon as brightly as daylight!
At this moment, the entire underground city fell into silence.

Everyone released the triggers of the guns in their hands and raised their heads blankly to look up at the wrathful world-destroying scene in the sky!
Not to mention being a native of the underground city, even Chen Fan, the instigator of the [Chain Thunderstorm], stared blankly at the thunder pool hanging high on the dome of the underground city.

At this moment, the introductory information of [Chain Thunderstorm] appeared in his mind involuntarily.

Relying on the plasma arc, a lower intensity chain lightning strike is carried out on the specific plasma cloud coverage area. The specific power and coverage depend on the situation.

Chen Fan didn't quite understand the second half of the sentence at first, but now, he completely understands it.

He only used two small floating turrets to create such a powerful [Chain Thunderstorm]!
What if there are 20, 200, 2000 or even more floating turrets?
[Chain Thunderstorm] may turn the entire planet into a thunder prison filled with plasma arcs!
[In fact, the Human League usually uses this weapon in large-scale attacks on star systems and even river systems. 】

An electronic synthesized sound sounded in his mind, correcting Chen Fan's "wrong" thoughts.

One minute later.

The successive explosions gradually dissipated, and the [Chain Thunderstorm] gradually stopped after consuming the light blue plasma cloud.

The underground city once again fell into darkness, and the air was filled with a burning smell.

"Flare!!"

Hong Chengdong's hoarse roar came from the side: "Shoot the flares quickly!!"

A burst of hurried movement sounded not far away.

Immediately afterwards, a flare flashing with dark red light slowly rose from the ground.

Almost at the same time, several illumination bombs were raised from a distance, and some light appeared again in the dark underground city.

The omnic drones that were originally scattered over the dungeon were cleared in a wave, but all the electrical equipment in the dungeon also completely shut down.

But no matter what, the ending is good after all.

At the moment when Hong Chengdong's face covered with burnt traces of gunpowder showed a slight smile, the faint hum of a drone sounded again in the passage behind him!

ps: Damn it, I forgot to publish it on time when I was writing the manuscript, my, my, my.

(End of this chapter)

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