Global Cataclysm: Infinitely Upgrade Shelter

Zhao Chen's words landed, and the ground shook slightly.

This time, however, the shaking was barely noticeable.

If Zhao Chen hadn't been observing all the time, it would have been easy to ignore.

After the minefield was arranged, Zhao Chen quickly went out for a spin in an anti-shooting suit.

At this time, the corpses of radioactive organisms around the shelter had already been cleaned up by Infrastructure 1 and Infrastructure 2.

In addition, the snowflakes have slowly fallen since yesterday, and all traces of the attack have been completely hidden by the snowflakes.

It's as if nothing has happened.

A minefield has been laid out outside the spike trap.

The placement of all mines in mined areas is also calculated in a systematic and precise manner.

Make sure that nothing slips through the cracks and that nothing goes to waste.

Building an entire minefield costs only a few hundred survival points in the end.

After Zhao Chen made a look outside, he thought about it and spoke.

system, query the conditions for the upgrade of the mined area. "

【Mined Areas】

[Upgrade Effect: Covers a wider area, is more powerful, and can break through a meter of thick steel]

[Upgrade Raw Materials: Steel, Gunpowder, ......]

[Attributes can be attached, and a certain survival point can be consumed according to the effect.] 】

【......】

Looking at the effect of the upgraded minefield in front of him, Zhao Chen blinked.

Wider coverage and more powerful, but relatively.

It is a very accurate thing to break through a one-meter-thick steel plate.

But Zhao Chen finally chose to give up.

Now it is enough for radioactive organisms to be dealt with with ordinary mines.

After upgrading, it can break through a meter-thick steel plate, which is a bit wasteful.

After building the minefield, Zhao Chen stood outside and looked at the outer wall, and chose to upgrade again.

Previously, he had upgraded the inside of the exterior wall to steel plates, but this time the radiation creatures attacked, using gasoline to burn, and basically destroyed all the wood in the outermost part.

It looks a little too unsightly.

And the defense capability is also somewhat unable to keep up.

The strange behavior of the radiation creatures before proved that this matter is not simple, and it must not be stingy.

Not to mention that he's now a rich man.

After the exterior wall was upgraded, the steel plates several meters thick looked shiny.

"Now we have the defense capability, but if the radiation rats attack again, the fire will not be easy." "

Zhao Chen stood in place and thought about it, and soon ordered Infrastructure No. 1 and Infrastructure No. 2 to pull timber and enclose all the outer walls.

In addition to the external defense, the internal defense is naturally not bad, and Zhao Chen upgraded the door of the shelter again.

After all the total, the more than 10,000 survival points that Zhao Chen had obtained before shrank again to only 8,000.

"It would be nice to have a 20,000 survival point, and directly upgrade the entire shelter!"

Thinking of the tungsten steel refuge, Zhao Chen was inevitably a little excited in his heart.

At that time, the defense capability of the entire Vault will be improved again.

But for the current situation, the Steel Shelter is sufficient.

After doing all this, as soon as Zhao Chen turned around and entered the shelter, Ying Mengyao had already appeared in front of him.

And the expression on his face also looked a little serious.

"What's going on?"

"Just now the drone sent back the news that mutant birds have appeared. "

After Ying Mengyao finished speaking, she quickly opened the photos and videos sent back by the drone and put them in front of Zhao Chen.

Zhao Chen's gaze quickly fell on the picture given to him by Ying Mengyao.

At a glance, you can find traces of these birds that are very familiar on a daily basis.

It is the most common sparrow on weekdays.

But at this point, the sparrows were twice as large as they had ever seen.

And just like the radiation rat before it, there was a faint flash of red light on its body, and its claws and pointed beak were sharper than before.

You can already see the peculiarity of these mutated birds from the pictures.

However, the picture shown on the video is more intuitive than what I saw in the picture before. (If you read a violent novel, go to Feilu Novel Network!)

These mutated birds are also flying much faster.

And it seems that the drone is an enemy, a target.

It only took a few seconds from just being discovered by the drone to rushing to the drone.

"Is there a mutant bird?"

Zhao Chen's deepest impression was the radiation rat, after all, the disaster caused by radiation at that time has always been fresh in his memory.

Unexpectedly, the type of time and speed of the appearance of radiation creatures were faster than he imagined.

"Is there a special place? Is there only one nearby? Is there a group of them?"

While Zhao Chen finished saying this, Ying Mengyao was also constantly issuing instructions.

Qiao Qian has been quietly observing on the side.

Just when Ying Mengyao sent a designation to Hawkeye again to wait for the news to come back, Qiao Qian suddenly stepped forward.

"Sir, I have something to say. While Qiao Qian was talking, her eyes were still on the video.

"What's wrong?" Zhao Chen looked up at Qiao Qian.

"'This mutant bird looks like a scout!'"

"Scout, are you sure?" Zhao Chen frowned.

"Sir, please don't doubt my expertise, these mutant birds are like scouts, both in their flight routes and in all their actions after they appear. "

"Of course, it's not very qualified. Qiao Qian finally added.

Zhao Chen naturally had no doubts about Qiao Qian's ability.

After all, Qiao Qian was born as a soldier king, and she knows all kinds of troops very well.

Zhao Chen didn't doubt what Qiao Qian said, but if what Qiao Qian said was true, how could a mutant bird become a scout?

Zhao Chen's mind couldn't help but think of the strange performance of those radiation rats before.

The combination of the two parties is enough to show that this mutant bird is probably sent by the boss behind the scenes.

"Can you attack it?"

Zhao Chen turned his head to look at Ying Mengyao and Qiao Qian.

The second daughter shook her head under Zhao Chen's gaze.

"All the capabilities of our shelter are on the ground, there is no air power. "

"The most important function of the drone is to observe, transmit data back ......"

As soon as Ying Mengyao said this, she immediately turned around and continued to operate, giving instructions to Hawkeye.

Well, needless to say, even if this mutant bird is really a scout, it's a bit difficult to deal with.

Who made it fly high in the sky now?

"Sir, next we must take air supremacy into our hands. Qiao Qian spoke quickly, with an extremely serious expression on her face.

This time, there is no need for Qiao Qian to say more, and Zhao Chen also understands this.

This incident also gave Zhao Chen a wake-up call, making him understand that air defense must be strengthened next.

"Qiao Qian, tell me, what preparations do you need to make if you want to win air supremacy?"

Zhao Chen and Qiao Qian quickly got together to discuss this matter.

Ying Mengyao is still giving instructions to the drone.

After a short time, Ying Mengyao suddenly raised her head with a smile on her face.

"Brother Chen, it's done!".