Wasteland Survivalist: A Scientific Guide to Post-Apocalyptic Survival

Nearly twenty minutes passed, and there was still no new movement outside.

Gu Lang and Li Zheng changed direction, carefully avoiding the corpses scattered on the ground, and returned to the factory from the visitor corridor.

After searching and checking all the locations, it was finally confirmed that there were no more berserkers in the factory area.

Once they were completely safe, the two breathed a sigh of relief.

"No one goes into a confined space without oxygen monitoring equipment; these are lessons learned from lives lost. Wear a helmet when playing chess, and bring a submersible to meetings. Safety in production is a long and arduous task."

Gu Lang jokingly teased Li Zheng, not caring whether the other understood the historical references or not.

"Don't be too happy yet, I have a feeling something's not right."

Li Zheng frowned and walked towards the factory entrance gate for inspection.

Gu Lang went to the street outside the entrance to help set up guns and keep watch.

After finding no threat, they returned to the factory area.

At this moment, Li Zheng had already turned off the ambulance's piercing siren and glaring warning lights.

"Did you find anything?"

"When I was holding them off at the gate, four cars came, but now there are only three left."

"That means some berserkers drove away. That's not surprising; there will always be smart ones who don't want to come in and die."

"He's still a threat; we can't stay here any longer. Let's take advantage of the fact that most of the berserkers in the vicinity have been cleared out, gather supplies quickly, and then get out of here."

Gu Lang put on his mask and gloves, walked towards the three cars that the Berserkers had brought, and turned off all of them.

"Wait, I've found something good."

Gu Lang saw a black briefcase in the back seat of an SUV, with a label in the middle that read "DJI Matrice 4T".

He opened the back door, took out a briefcase, and sure enough, there was a drone inside.

"What is this?" Li Zheng asked curiously.

"Da Jiang's Matrice 4T, a drone with a thermal imaging camera, was the one that used to chase us all over the place."

Gu Lang picked up the remote control with the screen and started the drone, only to find that the battery on it was completely depleted.

Seeing that there were three spare batteries in the box, he pressed the switch on each battery one by one and found a fully charged battery by following the flashing green light.

After the drone was installed, it took off.

When the infrared camera is turned on, the originally dark scene is instantly filled with the outlines of objects.

In the black and white image, the figures of Gu Lang and Li Zheng become as bright as light bulbs.

With the infrared ultra-high definition mode activated, the image quality becomes even clearer.

This is also why Gu Lang stopped using his self-made infrared night vision devices after encountering the Berserker army.

The drone flew quickly over the medical city, circled once, and saw no other living creatures besides a cat and a few birds.

Because the Matrice 4T is designed for search and rescue, inspection and pursuit, the machine itself has intelligent recognition capabilities.

It can quickly lock onto and track moving targets, especially human figures and various vehicles, which saves Gulang a lot of time and effort.

After confirming that there was no Lao Liu lying in ambush outside, he immediately retrieved the drone and skillfully folded up the propellers.

"It's safe outside, but we can't see inside the building for now. Never mind that, go back and find your husband."

Gu Lang jumped into the ambulance, took Li Zheng to the hospital, found a folding wheelchair, and put it in the medical compartment in the back of the vehicle.

Exhausted from a night of intense competition, but also feeling a great sense of accomplishment, the two returned to the medical university's indoor gymnasium.

"Old Wang, look what we brought you back!"

Li Zheng laughed loudly, released the wheelchair handles, and knocked on the bathroom door.

When the door was pushed open again, Wang Bin, who was lying on the cot, propped himself up and looked over anxiously.

When he saw his two comrades return safely, he breathed a long sigh of relief.

"You're finally back... If you hadn't come back, I was ready to..."

He put down the rifle he had just picked up, but the concern in his eyes was self-evident.

"Let me tell you, this is what happened..."

Li Zheng stepped forward and began to deliver the mission report with great enthusiasm, leaving Wang Bin completely dumbfounded.

Seeing this, Gu Lang volunteered to take on the guard duty.

Back in the ambulance, I used the vehicle's charging port with the DaJiang Charging Butler app to recharge the four drone batteries.

While disinfecting and wiping down the drone, he made a new discovery.

An additional airdrop device is installed beneath this Matrice 4T drone.

He studied it and found that the working principle of this little accessory was quite ingenious.

To facilitate landing in the dark, the drone is equipped with a supplementary light on its bottom, which can be remotely activated using the official remote control.

The airdrop device is located at the bottom, and after opening the airdrop device before takeoff, you only need to remotely turn on the auxiliary lights using a remote control.

The light will shine on the photosensitive sensor built into the airdrop device. When the sensor receives the light signal, it will drive a small servo motor to rotate and release the hook, thus achieving long-distance airdrop.

After figuring out the principle, Gu Lang finally understood how he had been hit by that "grenade from the sky".

After a few hours of rest following dinner, the sky gradually brightened.

Li Zheng drove the Lynx assault vehicle as the vanguard, once again entering the core area of ​​Taizhou Medical City.

Gu Lang drove the ambulance, carrying the immobile Wang Bin, and followed closely behind.

They entered the area where the advance team had been wiped out.

When the three arrived at the vaccine factory's canteen, they discovered the reason why the previous unit had been wiped out.

The walls were covered in splattered fragments of blood and flesh, which looked like the result of someone carrying a bomb and detonating it themselves.

This explains why the berserker soldiers that appeared earlier had so many wounds and bloodstains.

The factory grounds were littered with piles of bones, and the green belts were covered with black excrement.

This reminded Gu Lang of something mentioned in the US military's history of the Pacific War during World War II.

During the island battles, the Japanese army's supply lines were cut off.

When food was scarce, the Japanese army began to eat human flesh.

When a person's diet is chronically deficient in plant fiber and consists almost entirely of meat, their feces will exhibit the black color seen in Gulang today due to the digestive products.

Judging from the amount of feces in front of them, the berserkers should have already "emptied" the area of ​​the Medical City.