The jet of acid covered the entire channel.

This good guy squirted out, I'm afraid he has been saving for 18 years.

If he were on the ground, Zhao Feng would probably be hit even if he could block the attack from the front.

But now it’s underground, no matter how large it is, it can’t get in~

With a few "bah" sounds, the energy surface supported in front of them all evaporated, leaving no trace behind.

On the contrary, the acid splashed into the passage, melting all the ordinary zombies that kept rushing over into carbon slag.

This time, it was a mistake and helped Zhao Feng.

Originally, he had not thought about how to safely turn off the equipment after returning to the safe house.

This time the problem is solved.

In a channel full of acid, no zombies can rush over and engage in hand-to-hand combat.

In addition, every time the worm zombie spits acid, it takes a while to simmer.

You can take this opportunity to turn off the device and quickly retreat into the door.

After he retired after his success, the last problem he needed to face was. . .

close the door.

Although after returning to the safe house, Zhao Feng was already pulling at the door desperately.

But after 3-4 seconds passed, the door was only a third closed.

Hearing Zhao Feng's low roar as he exerted his strength, Li Ruolan slowly opened his eyes.

The fresh air that came in made her feel a little better.

Looking at Zhao Feng, who was covered in steam and roaring, trying to close the door.

She stood up with difficulty and staggered over. . .

Zhao Feng, who was trying to close the door, was stunned for a moment when he saw a pair of bare hands suddenly appearing on the handle.

He reacted immediately and turned to look at Ruolan behind him.

Looking into each other's eyes, nothing can be said.

The strength of the two men obviously made the door close faster.

But the door is too heavy, and the slide rails are stuck with zombie bones, making it more difficult to push every time.

After 5-6 seconds, the door was only half closed.

The worm zombies on the opposite side didn't care how hard Zhao Feng tried.

After brewing for a moment, it spurted out the acid in its abdominal cavity again.

Although he has been competing with the gate, Zhao Feng also pays attention to the movements of the zombies.

But after seeing the huge mouth slowly opening, his mentality was somewhat explosive. . .

No time to be upset.

Seeing the acid spraying out, he turned around, hugged Li Ruolan, and pushed her to the ground.

Most of the acid that flew out immediately hit the door, while the other part sprayed into the safe house.

At this time, the wooden floor in the house was suffering. The parts stained with acid were all yellowed and carbonized at a speed visible to the naked eye.

Fortunately, he escaped in time and was not splashed with acid.

The two people who escaped the disaster quickly got up and wanted to close the door again.

But the door that could be moved just now, no matter how hard they tried, it would not move at all.

Sensing the abnormality, Zhao Feng quickly looked at the guide rail groove on the ground.

I saw that the guide rail was completely integrated with the iron door.

Although this acid cannot deal with inorganic substances, the iron door is also a type of metal after all, and the biological acid sprayed on it still has a passivation effect on it.

The most severely eroded part is the connection between the bottom rail and the iron door.

Because of the continuous contact reaction with the acid, the passivation film produced completely connects the two.

The door is stuck directly and cannot be closed.

Looking at the guide rail groove that was completely glued to the main door, he understood that it was absolutely impossible to close the main door.

At this moment, Zhao Feng once again felt the malice of this world.

On such a hot day, his hands and feet were actually cold, his body was shaking with anger, and cold sweat was flowing down uncontrollably.

‘Is it over yet? Lack of energy, poison gas, and high temperature roasting will give me another lock and kill! ? Survival on the Star Sea? I beg your grandma for a roll! Did I dig up your ancestral grave? ’

It's really uncomfortable to feel uncomfortable, but complaining can't solve any problems.

After calming down, Zhao Feng readjusted the output mode of the drilling laser.

Then he darted out of the door and pulled the trigger without hesitation.

The concentrated plasma flew through the 10-meter-long channel and exploded into a fireball in front of the worm zombies.

The high-speed explosion of flames quickly heats and expands the surrounding air, blowing away the worm zombies and twisting them into pieces in mid-air.

Looking at the entrance that instantly became empty, Zhao Feng's eyes lit up.

Somehow he seemed to have caught a blind spot that he had not discovered before.

‘I remember the attack distance of this weapon is 10 meters, right? Why does it explode when it exceeds 10 meters? Why is the explosion so powerful not included in the attack range? ’

In fact, what Zhao Feng thought was not correct.

The explosion-like effect was produced simply because the tunnel was too narrow, limiting the release of energy.

If placed in an open environment, it will never be able to achieve this awesome effect.

Due to the limitations of the terrain and the obstruction of a large number of zombies when it was used before, Zhao Feng only saw its penetrating and igniting effects, but did not see the explosion in the final stage.

That’s why it feels outrageous now.

‘Is MD poisonous? What's going on with this panel data? A scam? ’

Of course, the data panel cannot be entirely blamed.

The calculation of drilling laser attack distance is based on the drilling operation instructions as a standard.

During normal use, the drilling distance is only about 1-3 meters.

Coupled with equipment energy level limitations, drilling operations rarely require a distance of more than 10 meters.

So the data given by the panel is actually very reasonable.

Moreover, the power of the compressed plasma explosion is, to be honest, more effective against unarmored units.

It's no problem to bully the ordinary zombies and worm zombies you are facing now.

After all, their state is tantamount to running naked.

That skinny skin may have negative armor.

Any mutant that is replaced by a defense system will not have such a big effect.

However, it is not too late to discover this trick now, although he is annoyed that the "unreliable" system panel puts him in danger.

But now that we know this hidden attack method, how can we let it go?

He did what he thought of and did not continue shooting behind the bunker at the main entrance.

Zhao Feng retreated to a position 8-9 meters away from the door.

He squatted down and looked towards the passage behind the door.

At this time, after losing the indiscriminate attack of the worm zombies, the number of ordinary zombies instantly gained the upper hand.

They poured into the tunnel in a steady stream, rushing towards the half-open door.

Looking at the group of corpses getting closer and closer, Li Ruolan couldn't help but feel anxious.

"Xiao Feng, shoot!"

Hearing this, Zhao Feng moved his lips.

"Don't worry."

At this time, the group of corpses was less than 3 meters away from the door.

Looking at the group of corpses so close, Li Ruolan's face turned pale with fright.

She turned to look at Zhao Feng and saw that he hadn't fired yet, so she thought there was something wrong with the weapon.

At this time, what was deep in Ruolan's heart was not the fear of death, but four big characters that suddenly appeared that were inconsistent with the current scene.

‘I’m at a loss! ’

Just when she was considering whether or not to run to Zhao Feng and die together, a red stream of light passed by her side and poured into the passage.

Immediately afterwards, the plasma compressed to the extreme was released instantly.

A burst of flames exploded.

The thick and solid steel walls restrained the energy from escaping.

The long, straight tunnel provides smooth access.

The remaining power of the inertia constrains the stance, pushing the flames forward and causing them to surge out.

Immediately afterwards, a violent explosion sounded.

. . .

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