The two chatted for a while before ending the conversation.

The regional communication channel was surprisingly quiet, the last time I spoke was two days ago.

The World Channel is a hot chat, basically talking about how to build and upgrade shelters. The old brother of civil engineering was praised to a high position for a while. He selflessly popularized safety knowledge to the public during non-live broadcast time, and only gained some fans.

Beyond that, there isn't much more information about the copy.

"It's time to start preparing."

Su Heng first mailed the raw materials piled into hills at the door to Li Sike, and left a message asking him to make these materials into shotgun ammunition.

【You can now recruit more population units】

Su Heng suddenly received a system reminder.

Opening the system panel, Su Heng looked at the function bar.

【Recruitment (to be recruited)】

[According to the assessment of the safe house level, you can now recruit 1/3 of the population]

Su Heng clearly saw that another card was unlocked on the recruitment page.

【Light Armor Combat Robot】

[Level: lv.5]

【Type: Mechanical Bionic】

【Function: Combat】

[Evaluation: The upgradeable combat robot from the future is the first basic combat unit you recruit. It has the mainstream melee attack level and reactivity. Please minimize the fire to avoid the destruction of local long-distance firepower]

[Materials required for recruitment: 4/10 intermediate iron, 14/10 advanced iron, 6/5 advanced steel, 1/3 advanced aluminum, 4/1 tempered glass, 0/4 intermediate copper, 0/2 advanced nylon】

[Doomsday Honor Points Required for Recruitment: 210/1000]

"The population occupied by this battle robot is 2 tiles."

"In other words, I can now recruit 2 labor robots, or 1 combat robot."

"Is it still worth thinking about? It must be a battle robot!"

Su Heng is going to explore the dungeon tomorrow, and improving his combat power is currently his main requirement.

Pulling three labor robots into the copy is definitely not as good as a combat type robot.

"I don't have enough Doomsday honor points, so I can only recruit with materials. It's quite a lot."

"Currently I am missing 6 units of medium iron, 2 units of high aluminum, 4 units of medium copper and 1 unit of high nylon."

Su Heng opened the exchange and began to acquire materials.

The high-grade aluminum block is a bit difficult to collect, but I still received it after squatting for a few minutes.

"Confirm recruitment!"

【Recruitment completed】

Su Heng's current population reached the upper limit, and the two cards turned grey-black again, indicating that they could not continue to recruit.

After scanning the golden code, a humanoid light-armored machine with a height of 2 meters 2 and almost two Su Hengkuan appeared in the underground shelter.

"Ow~"

Lolo was obviously taken aback again, and cautiously roared at the battle robot, ready to pounce at any time.

"Don't yell, don't yell, my own." Su Heng reassured Luo Luo.

Its volume is about 5 times that of Xiao Hei, and the whole body is welded by special blue iron armor.

Unlike Xiaohei, it moves on two legs, not a traditional crawler drive.

On the blue armor on the chest, there is a string of mysterious numbers: [K0781654]

"You're so blue, so I'll call you... Big Blue."

The daily consumption of Dalan is 5kg of any edible food and 2L of purified water.

"Okay, now I have one more mouth."

It comes with a sharp epee with the thickness of the neck. At present, it only has a melee mode, but it can provide weapons and equipment for Da Lan to change its combat mode.

[Explosion Shield], [C-18 Assault Rifle], [UMU-410 Power Armor], [Space Enhancer], [UMC-10 Cooling Device] and other solutions.

Whether it is material upgrades or doomsday honor points, they all need a certain technological foundation, and Su Heng is temporarily unable to operate them.

"Go, go out and practice with me."

Su Heng wanted to try the power of Dalan. It was worth consuming 5kg of food and 2L of pure water every day.

After a simple exploration, Su Heng probably understood Dalan's mechanism.

Its modes are divided into: moving, still, alert, patrol, attack, still.

In the alert and patrol state, if a threatening creature is found, it will automatically launch an attack.

As for the attack, there are only a few general actions: stab, hack, slash, and hit.

"Although it's not much smarter than Xiao Hei, it's resistant to beatings!"

Although Da Lan is equipped with light armor, he is much more resistant to beatings than Xiao Hei.

If you face the 3-star alien beasts like Yanyuehu and Black-Scaled Bear, it is estimated that they will take a few more hits.

"If you enter the copy of [Wujin Snake Pit], Luoluo must be brought. It has a keen sense of smell and can warn of danger."

"With the newly recruited Da Lan, I feel a lot more at ease all of a sudden."

"Try the new weapon made by Dr. Li."

This local firearm is a bit heavy, holding it like a dumbbell, and needs both hands to shoot straight ahead.

However, the wooden rear **** stock is very skin-friendly.

Su Heng took out a homemade shotgun and put it in.

Aim for a large rock not far away.

Pull the trigger.

boom!

Huge white smoke, accompanied by sparks, emerged from the muzzle and position of the gun.

The recoil made the unsuspecting Su Heng stagger back a few steps.

"I lost, the recoil is so strong?"

"When watching the live broadcast, I didn't have such a big recoil. Try again."

Su Heng put in another shotgun and pulled the trigger.

boom!

White smoke and sparks came out again.

"Pay attention, it's much better."

"But the white smoke and sparks are bigger than I thought."

Back at the underground shelter, Su Heng set about preparing to upgrade his weapons.

After the information provided by Zhao Dandan, he had to be asked to take this outing to the highest level.

"Even if I don't put my life in it, I can't accept the lack of arms and legs."

"Although the weapons made by Dr. Li can also be used, they have many defects. If they can be upgraded, they should be upgraded."

"I did the same with the gas mask last time."

"I have to say that Dr. Li is also half a tool man."

[Homemade Earth Shotgun] is upgraded to [Entry Level Hunting Shotgun]

[Required materials: high-grade wood 8/2, high-grade iron block 4/3, high-grade steel plate 1/1]

[Required Doomsday Honor Points: 210/1000]

"so cheap?"

"It should be said that it is very cheap for me, and ordinary people really can't collect so many advanced materials."

After Su Heng saw the upgrade options, he chose to use materials to upgrade.

"Confirm upgrade!"

After a golden scan, the dirt shotgun in hand is upgraded to an entry-level hunting shotgun.

It is worth mentioning that the rules for upgrading were gradually figured out by Su Heng.

Upgrades are based on the principle of one category and cannot be upgraded across categories.

For example, torches belong to [lighting tools]

lighter [lighting tool]

Bows and the like belong to [Cold Weapons]

The axe is literally turned into a [tool of work]

Earthen Shotgun [Hot Weapon]

Externally powered bicycles belong to [transportation]

"After that, let's explore slowly~lightnovelpub.net~ Su Heng happily looked at the entry-level hunting shotgun in his hand, and it instantly raised a notch!

"This is the product of the industrial age!"

[Entry-level hunting shotgun]

[Quality: Superior]

[Grade: Advanced]

[Function: Using gunpowder as an energy source, it can launch shotgun/beam projectiles of the corresponding caliber]

[Evaluation: Compared with soil-type firearms, hunting shotguns have a stronger 60-meter range, and the lighter gun body can effectively reduce the recoil while increasing the hit. The attack at close range has a very high deterrent effect. You will be terrified in front of it! ]