Doomsday Bunker Upgrade

Originally, the connecting passage between the main part and the entrance part of Chen Xin's shelter was a 50-meter-long sloping corridor. It was built to facilitate the vehicles parked inside the shelter to enter and leave the shelter. The corridors are not as convenient to use as originally expected.

Because the length is only 50 meters, but the height difference from the entrance to the interior of the shelter is nearly 20 meters, which makes this section of the ramp actually very steep. Driving in and out or even using a cart to drag supplies is not a problem. very convenient.

However, when Chen Xin was building the shelter at that time, what Chen Xin considered was to build the shelter a little deeper to avoid possible meteorite impact from affecting the shelter. There is not too much fuss about details.

After all, it's just that the slope is relatively large, and it is not very convenient to use, but it is not completely unusable.

But now that the system can be used to upgrade, Chen Xin naturally made adjustments here, changing the originally obliquely connected corridor into two horizontal passages, and using the elevator in the middle to go up and down.

This is also one of the reasons why Chen Xin has to wait until the materials from the city government are delivered before starting the overall upgrade of the shelter. The materials for the elevator were collected by the help of the city government. Originally, Chen Xin planned to process it by himself. .

The area of ​​the elevator that appears after the upgrade can approximately stop an ordinary family car. The whole is a cylindrical car with a diameter of seven meters and a height of three meters and five. The problem of being narrow and unable to turn around.

Taking the elevator to the upper floor, after passing through the passage, it is still the original preparation room, but on the other side of the preparation room, there is an additional material storage warehouse.

This is an adjustment made by Chen Xin because of the inconvenience of material transportation before. The material warehouse is placed on the upper floor where the entrance is located, and only the food storage room is reserved inside the shelter.

In this way, the materials can be directly stored after being transported in from the door, and there is no need to transport them further.

Anyway, for Chen Xin, it's almost the same where the materials are placed. He only needs to open the system interface to use the materials, and he doesn't need to pick them up in person.

Passing through the preparation room, it is still the passage where the heavy crossbow is placed.

Chen Xin didn't make any major changes here. After all, it's just a passage, and the attacking ability of the heavy crossbow is enough.

The only thing he adjusted was the trigger method of the heavy crossbow, changing it from the original flap mechanism to infrared induction automatic shooting, and setting up a hidden mechanism to hide the whole heavy crossbow in the ceiling.

Anyone who walks through the corridor with the alarm turned on will be directly stunned by the 90-round crossbow shot in one minute, which is no worse than the heavy machine gun Chen Xin installed at the gate.

As for the way to turn on the alarm, Chen Xin set it to turn on from the inside and trigger the attack through face recognition.

That is to say, every time you come out from the inside, you can turn on the alarm switch from the inside to turn on the face recognition. In this case, after passing the face recognition, you can naturally enter the shelter.

But if a stranger enters and fails to pass face recognition, the heavy crossbow on the ceiling will be activated, and you can enjoy a daring experience of dodging heavy crossbow bursts.

As for coming out through the safe passage, Chen Xin did not make any changes on the side of the cleaning room, but only upgraded the cleaning equipment inside.

The outside of the washroom is still a garage and a space that can be called a foyer or a hallway.

This is an L-shaped space, with the short side connecting the gate and the cleaning room, while the long side is an extended garage for parking Chen Xin's modified armored RV.

There is nothing to say about the garage and the entrance. The garage only adds vehicle maintenance functions and some car repair tools, and the entrance is just an open space.

What really deserves attention is the door to the sanctuary.

It is still the previous lift-type metal armored door, but Chen Xin changed it from homogeneous armor to multi-layer composite armor this time, and the thickness has increased from 30cm to 35cm. Although the thickness has only increased by 5cm, the defensive performance is already equivalent to 120cm thick homogeneous metal armor.

The original double-mounted Mark Qin at the entrance has also been replaced with a double-mounted 12.7mm three-barrel rotary machine gun, which is the same type as the one Chen Xin installed on the armored RV. It can still be controlled by a computer, and it can be automatically locked and aimed.

Of course, you can still perform manual exercises like Chen Xin did yesterday, and experience 3,600 turns of one breath, great compassion and compassion to save the world.

After inspecting the entire shelter, Chen Xin was very satisfied with the effect of the overall upgrade. In addition to the overall layout and the improvement of technology level, even the original gray cement walls of the shelter were covered with paint, and metal was added. The support frame looks much cleaner and brighter.

Even the lighting facilities that were originally just light bulbs have been replaced with LED light tubes, which softened the light inside the shelter a lot, and added the light control that Chen Xin has always been thinking about, which can adjust the light over time. , so that people inside the shelter can also feel the passage of time.

As for Chen Xin's observation room above the gate, it has also been adjusted and upgraded this time, allowing it to evolve from a simple tree antenna room to a formal bunker, not only adding some living facilities inside, but also the observation port. A double-layer vacuum glass is also added to block the entry of cold air.

Of course, in order to preserve the defense function of the observation room, the glass of the observation port can be opened and turned back into a shooting hole.

As for the vents connected to the outer wall, Chen Xin did not make major changes, but added a ventilation fan and an air filter inside the ventilation duct to improve the ventilation efficiency.

Back inside the shelter, Qin Lan was still sitting on the sofa and playing games. Chen Xin's previous experience seemed to have no effect on her, although the living room she was in had completely changed, and the game console was upgraded from PS4 to PS5. , and even the size of the TV has been enlarged a lot.

"The work is done?" Qin Lan watched Chen Xin pick up the other controller that was put aside to connect to the game, and also pressed pause to switch the game to two-player mode.

Chen Xin sat down, nodded and said: "There is not much work left. As long as the materials are in place, it can be done very quickly. Now it is all done."

"Just do it, come and play with me. You lost to me last time, and now I'll give you a chance to beat me!" Qin Lan looked at Chen Xin and deliberately used aggressive tactics against him.

Chen Xin also smiled freely, holding the handle and saying, "That's what I let you!"

"Haha, who's letting who?" Qin Lan was obviously not convinced, and provoked Chen Xin: "Then why don't you make a bet?"

"Okay, what are you betting on?" Chen Xin readily accepted the challenge. Although the PS5 was launched before the disaster, he had not tried this latest model: "If you lose, you are not allowed to default!"

Qin Lan bit his lip, and after thinking about it, he made up his mind and said, "The loser is down at night!"

"Below? Don't you sleep on the bottom bunk? What's on the bottom..." Chen Xin reacted, and the expression on his face suddenly became meaningful: "The bet is so big? Then I will use 120% of my skills. !"

Qin Lan was already ashamed at this time, but he still said very stubbornly: "Humph! I won't lose if I win or lose, it depends on how you die!"

As he said that, he gave Chen Xin a provocative look and started the game directly.

Chen Xin smiled and became equally serious. It is about the dignity of a man. You can't lose this kind of thing.

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Win or lose is not for the time being, and it is not an outsider how to decide between the two. Anyway, when Chen Xin woke up the next morning, Qin Lan was lying in his arms.

Carefully pulling out his arms, Chen Xin got up from the bed lightly and put on his clothes. In order to avoid waking Qin Lan, he went to the bathroom of another room to wash up, and then he came to the upgraded new kitchen and started to prepare breakfast. .

However, Qin Lan didn't sleep very hard, and the lack of a pillow next to her still made her wake up quickly.

Qin Lan, who was only wrapped in a blanket, came to the living room and looked at Chen Xin who was busy in the kitchen. Instead of disturbing him, he leaned against the kitchen door.

The upgraded heating system provided a warm enough environment for the interior of the shelter. Even though Qin Lan was only wrapped in a blanket, he did not feel cold. Instead, he watched Chen Xin busy with interest.

"Wake up, why don't you sleep for a while?" There were more people at the door of the kitchen, which naturally couldn't be concealed from Chen Xin. He looked up at Qin Lan and continued to cut the lettuce that had just been scalded with boiling water.

"I can't sleep a little when you're not here." Qin Lan looked at Chen Xin, and suddenly said something almost coquettish: "What should I eat in the morning?"

"You can't sleep without me?" Chen Xin smiled, gave her a doting glance and said, "I made a little lettuce salad and cooked porridge, but I don't know if you want to eat it without salad dressing. Get used to it? Go brush your teeth and you'll be able to eat in a while."

"Lettuce salad? It's good to be able to eat fresh vegetables now, how can you be so picky." Qin Lan also laughed, wrapped in a blanket and walked to the room: "Then I'll brush my teeth."

Qin Lan went to brush his teeth, and the lettuce salad on Chen Xin's side was also cut. Just season it with salt and other seasonings, and then it can be served on the table.

When Qin Lan came out of the bathroom and sat down at the dining table with only a shirt on, the table was already set with dishes and steaming porridge.

"It's better for you, Ah Xin, you have everything, even breakfast is so comfortable!" Qin Lan asked Chen Xin while eating breakfast, "I'm going back to the city bureau today, how about you, Ah Xin? Today What to do?"

"I'm going to make the ground source heat pump that the city government wants. I can leave early if I finish it early." Chen Xin answered Qin Lan's question, and at the same time asked her, "Do you want me to take you back?"

In fact, there are salads without salad dressing. They are only seasoned with oil, salt, soy sauce and vinegar. It is similar to the northern salad, but the taste is still ok.