Chapter 143 [Chain Thunderstorm]
Not only that, the target of this batch of drones is quite clear. After entering the underground city from the northern passage, they did not stop or wander, but instead accelerated their speed and rushed towards the outer city of Kukan underground city.
Looking at the giant bearing column in front of the drone group, Chen Fan suddenly felt a thin layer of cold sweat seeping out of his back.
The intelligent machine actually shifted its attack target to the load-bearing column of the underground city!
Once these high explosives explode, causing the load-bearing column to break and collapse...
the soil and rock layers hundreds of meters deep above the head will directly fall on Chen Fan and others!
Thinking of this scene, Chen Fan did not hesitate at all, and turned around and pointed the muzzle of his gun at the "self-destruction team" composed of dozens of drones.
The two self-propelled floating guns behind him 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 blew up several drones that served as human shields. Before the surrounding drones could fill the gap in defense, extremely hot blue bullets flashed through the air and bombarded the gap one after another.
Boom!
The flames of the explosion continued to light up, and the surrounding drones rushed towards the defense gap like moths to a flame, trying to block the attack from Chen Fan and the floating turret.
But...
the gap in strength between the two sides was still too huge.
In just a few seconds, this layer of physical defense wall built by a large number of drones was directly penetrated in a violent explosion.
Without the obstruction of conventional drones, under the guidance of Yi, a beam of deep purple high-energy laser directly hit the drone equipped with high explosives!
Swish...
The silver-white metal shell instantly glowed red, and in the blink of an eye, a hole was burned on it!
Boom!!!
At the moment when the high explosives were detonated in advance, a deep red fireball appeared above 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 gas and electric sparks of unknown composition were scattered everywhere in the sky. The high-power fluorescent lamps that had worked tirelessly for decades also went out one by one. The underground city, which had already been in disrepair for a long time, seemed even more desolate. The
self-destructing drones carrying high explosives were destroyed in advance, and the power of the explosion did not affect the load-bearing columns not far away.
But Chen Fan's expression did not relax at all. He knew in his heart that this was just the beginning!
As expected!
In a burst of rapidly flashing yellow warning signals, a large number of conventional drones gushed out from the defensive gap in the west of the underground city, mixed with a large number of self-destructing drones carrying high explosives!
Once they appeared, they rushed straight towards different load-bearing columns driven by the blades!
Boom! Boom! Boom! Boom!
The two self-propelled floating guns were fully powered, and deep purple laser beams kept flashing over the underground city.
Although each flash meant that a drone was destroyed, as the gap in the western defense area continued to grow, the growth rate of drones in the underground city still far exceeded the current capacity limit of the self-propelled floating guns. Without the formal investigator authority, the number of self-propelled floating guns and the types of weapons they possessed were greatly limited.
Finally, a self-destructing drone successfully broke through all fire interception with the cover of conventional drones and crashed into a giant load-bearing column!
Bang! ! !
A huge explosion roared over the underground city!
A ball of blazing fire quickly engulfed the load-bearing column, and a large amount of concrete debris was thrown out from the load-bearing column!
Another violent, terrifying and violent shock!
The flames of the explosion gradually dissipated, and the attacked load-bearing column appeared again in front of Chen Fan and others.
A huge gap had appeared on the originally smooth and intact load-bearing column, and thick, twisted steel bars were exposed from the inside of the load-bearing column.
A huge crack appeared from the gap and extended to the bottom of the load-bearing column.
"Crack!"
A clear and loud sound rang out over the underground city, suppressing the drone's buzzing sound.
"Crack... crack... crack..."
Just like dominoes, the cracks on the load-bearing column branched and spread like lightning from the sky.
In just a few seconds, this crack occupied more than 50% of the area of the load-bearing column!
Fortunately, under the watchful eyes of everyone, the speed of the crack's spread gradually slowed down and finally stopped.
"This can't go on!"
Chen Fan raised his hand and fired several shots. Looking at the fireball that suddenly expanded and then slowly dissipated over the underground city, he made a decision in his heart.
"One, prepare to release [Chain Thunderstorm]!"
[Warning! ]
[The current location is a closed underground space. Chain Thunderstorm may cause the underground city to be paralyzed, and it will also cause irreversible damage to the underground city's load-bearing structure. ]
[Please ask the investigator to confirm this order again. ]
Bang! !
As the loud explosion sounded again, the earth-shaking vibration came from another load-bearing column area!
Listening to the continuous clicking sound, a hint of ruthlessness appeared in Chen Fan's eyes:
"Confirm!"
The moment the words fell, the two self-propelled floating turrets that had been following Chen Fan quickly took off under Yi's control.
Driven by the anti-gravity engine, their flying speed continued to rise, and in the blink of an eye they arrived at the dome of the Kukan underground city.
After a short wait, a light blue gas-like substance was continuously released from the inside of the floating turret.
Under Yi's control, the floating turret shuttled back and forth among the group of intelligent drones.
This light blue, gas-like substance also quickly spread over the entire underground city!
The intelligent drones were not clear about the function of this unknown substance. They had never seen such a scene before, but they still completed their original tasks conscientiously.
While expanding the gap in the defense of the underground city, they also destroyed the load-bearing structure of the underground city!
For the intelligent machines, this set of procedures has been tested by several experiments-these intelligent drones have destroyed no less than ten underground cities by the same means!
[The chain thunderstorm has completed preparations. ]
After a long thirty seconds, the electronic synthesis sound finally sounded in Chen Fan's mind.
Chen Fan slowly put down the PW-1 plasma launcher in his hand.
"Brother Fan?"
Seeing Chen Fan put down his pistol, Hong Chengdong's face suddenly changed: "Don't give up! We still have a chance!"
Seeing Hong Chengdong's somewhat flustered expression, Chen Fan laughed dumbly.
"It's over."
Under Hong Chengdong's gaze, Chen Fan raised his head and looked up at the dome of the underground city that was already filled with light blue matter, and whispered the last order: "Chain thunderstorm, start!"
...
Crack!
A strange plasma arc popped out from the self-propelled floating turrets suspended in the sky.
Crack! Crack! !
The violent plasma arcs appeared from the inside of the two self-propelled floating turrets, turning into thin chains, and quickly extended the entire sky along the light blue matter!
These plasma arcs flashing with dazzling light instantly ignited the originally quiet light blue matter!
At this moment, the sky above the Kukan underground city seemed to have turned into a thunder pool!
Endless arcs leaped in the thunder pool!
Bang!
The fluorescent lamps with decades of service exploded in the endless arcs!
The already dim underground city fell into darkness!
Not only the fluorescent lamps, but also the intelligent drones flying high in the sky, as natural conductors, naturally became the target of the arcs!
Countless arcs jumped out of the light blue thunder pool, drew a "Z" trend in the air, and fiercely struck the surface of each drone!
Boom! Boom! Boom! ! !
Continuous explosions and flames lit up above the underground city, illuminating the dark underground city as bright as day!
At this moment, the entire underground city fell into silence.
Everyone released the triggers of their guns, and stared up at the wrathful and world-destroying scene in the sky!
Not to mention the natives of the underground city, even Chen Fan, the initiator of the [Chain Thunderstorm], stared blankly at the thunder pool hanging high above the dome of the underground city.
At this moment, the introduction information of [Chain Thunderstorm] emerged involuntarily in his mind.
Relying on plasma arcs, a low-intensity chain lightning strike is carried out on a specific area covered by a plasma cloud. The specific power and coverage range depend on the situation.
Chen Fan didn't quite understand the second half of the sentence at first, but now he completely understood it.
He only used two small floating turrets to create such a powerful [Chain Thunderstorm]!
What if there are 20, 200, 2,000 or even more floating turrets?
[Chain Thunderstorm] may be able to turn the entire planet into a thunder prison full of plasma arcs!
[In fact, the Human Alliance usually uses this weapon in large-scale attacks on star systems and even the Milky Way.]
Yi's electronic synthesis sound sounded in his mind, correcting Chen Fan's "wrong" thinking.
One minute later.
The continuous explosions and flames gradually dissipated, and the [Chain Thunderstorm] gradually stopped after consuming the light blue plasma cloud.
The underground city fell into darkness again, and the air was filled with a burnt smell.
"Flares!!"
Hong Chengdong's hoarse roar came from the side: "Launch the flares quickly!!"
A flurry of movement sounded not far away.
Then, a flare flashing a dark red light rose slowly from the ground.
Almost at the same time, several flares rose from the distance, and some light appeared again in the dark underground city.
The intelligent drones that were originally scattered over the underground city were cleared out in one wave, but all the electrical equipment in the underground city was completely shut down.
But no matter what, the ending is good after all.
At the moment when Hong Chengdong's face, which was full of traces of burnt gunpowder, showed a little smile, a faint drone buzzing sound was heard again in the passage behind him!
ps: Damn it, I forgot to publish it on time when I was writing the manuscript, my.
(End of this chapter)
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