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"Base, as long as it can meet all the indicators, can it be promoted to scientific and technological authority? Are you sure there won't be any more moths? ”

Cai Ruichen rubbed his chin and looked at the indicators above, the only thing that was more difficult was the task of power expansion.

However, such a task is not very difficult for him, the base can continue to develop, the strength has improved, and everything will be resolved.

Construct all the construction units, which depends on the character, and as long as you complete the second task of power expansion, there are still four draws, you can block those units that have been drawn.

In other words, as long as the second task of this force is completed, the next problem will be solved.

But Cai Ruichen, who has been cheated by the base many times, always feels a little unreliable, when did the base become so easy to talk.

"As long as the commander completes all the indicators, the low-level technology authority will be automatically reached."

The base's affirmative answer made Cai Ruichen's mood relaxed, this was the first time he had come into contact with the permission upgrade, and he didn't seem to be difficult at all.

The only thing that made him feel uncontrollable were two indicators of ordinary people, one saving a hundred survivors, which gave him the feeling that he was a good cheater.

It has been fifty days since I arrived in this ruined world, and the dead have seen tens of thousands, but not a single trace of the living has been found.

The only thing that made him feel relieved was that almost all the food in the recovered Shaxi Town had been scavenged, not to mention whether it was done by those dead people on the road, at least it showed that there were probably many people in this world who survived.

The real space needs to be recognized by the locals, which is a bit difficult to do in Cai Ruichen's view.

The thought of being recognized by the locals, Iraq, which instinctively rejects outsiders, is not so simple.

It may be possible to give them what they need, but in fact, what Iraqis in real space really need is a sense of security.

In this regard, Cai Ruichen didn't have much clue for a while.

"Base, how do you determine if the requirements are met for indicator five?"

"The base will be judged by the prestige of the commander in their hearts, to the approval of the majority of the population, and the minimum standard is to be respected by 80% of the residents."

As soon as he heard the explanation of the base, Cai Ruichen suddenly had a headache, he thought it was a little relaxed, but now that he hears it, this simplicity is just his subjective will.

"Mistake not, there are at least 60,000 or 70,000 Iraqis living in Marin Town, and if you want to be respected by at least 50,000 people, you and I are a god." Cai Ruichen said very unhappily.

"This is a matter for the commander, the development of the base cannot be separated from the support of the masses, and a pure military group that only has military but no people's livelihood is deformed and cannot last long. And the commander, do you think that in the future all the needs will have to be obtained from the base? That's not possible. A strong military empire requires not only strong military power, but also the support of countless people. Only with the approval of the native people can the commander really gain a foothold in real space. ”

Hearing the base's tirade, Cai Ruichen didn't understand this truth.

After all, Cai Ruichen didn't want his troops to be shouted and beaten by everyone in Iraq, just like the U.S. army back then, which was really tragic.

But it is too difficult to achieve such a target. For a while, he didn't have a clear idea.

The more he thought about it, the more irritable he became, and he simply didn't want to, there must be a road in front of Chetou Mountain, and the boat would naturally go straight to the bridge.

"Base, open the extraction interface, it's time to fight for luck again." He didn't bother to think about it, so he immediately said to the base.

"The Commander has accumulated three draws, and with the addition of the two special draws from the Expansion Mission 1 reward, the Commander now has five draws."

"Don't talk nonsense, start three ordinary extractions first, and leave the good things behind." Cai Ruichen waved his hand and said.

"Perform the Fifth General Draw ......"

There are still twenty-one icons in front of him, four of which have already been drawn, and this time Cai Ruichen was a little hesitant at first.

He naturally hopes that all these five extractions will best all capture new units, and the current development of the base is in urgent need of magnetic energy reactors, and without the provision of electricity, everything is in vain.

After some hesitation, his eyes lingered on the twenty-one magic boxes in front of him, and then he spoke, "The eighth box." ”

The eighth box slowly opened, and when he saw the icon slowly appearing, he couldn't help but burst into a foul mouth: "I'll rub it, ore refining factory." ”

The voice of the base immediately sounded: "The fifth draw result ore refining plant, because the commander has already extracted the unit, the result of this extraction is invalid, and the ore refining plant icon is permanently removed from the extraction list." There are two normal draws left, whether the commander continues to draw. ”

"Go on, it's just one failure, it's no big deal." In fact, Cai Ruichen was really depressed in his heart, and finally accumulated five extractions, but the first shot did not fire, and the whole person was not good all of a sudden.

The twenty boxes that have been re-ranked, it is clear that there is one ore refinery missing from them.

"Fourth, you have to believe in your lucky numbers." This time, Cai Ruichen didn't think about it, and said directly.

"The result of the sixth draw is the defensive unit - the wall, the commander can build a wall to protect the base at any time, and the commander still has one chance to draw normally."

Wall: A defensive unit, which costs 500 gold to build, and takes 30 minutes to build.

Conventional construction instructions: The height of each unit's fence is 20 meters by default, the length is 100 meters by default, and the thickness is 16 meters by default, the top of the wall has a walking passage, and defensive weapons can also be built on it, the height and length of the wall can be seamlessly connected to form a large whole, the height can be stacked up to 200 meters, the length and thickness can be extended indefinitely, and it can be built in a more rugged place or on a swamp.

Each walled unit is of fixed length, with individual artillery holes, an elevator, and an automated arsenal that needs to be plugged into a power supply to be effective. As long as the area of the fence is large enough, various units can also be built.

In order to improve the defensive ability of the wall, the horizontal planes of multiple walls can be connected to each other, increasing the thickness of the wall, and on rough ground that is not suitable for building units, it is also possible to use the wall to create a flat high ground and then build units.

Special Construction Instructions: Walls can be built underground, close to the ground, and can be drilled out of the ground once defense is needed, and can also be controlled to rise or dive back underground at any time. However, special construction methods require ten times the capital of ordinary construction methods.

It is not a dream to have a wall and build the Great Wall again.

Restrictions on use: Walls can only protect targets in the Command Sphere of Influence, or buildings that are not in the Sphere of Influence, but cannot be built in water.

……

After reading the instructions for the use of the wall, Cai Ruichen immediately had a feeling of thumping, where is the wall, it is simply a big city wall.

You can even build defensive buildings and even building units on it, as well as elevators up and down, which is simply too user-friendly.

The main thing is that this thing is not expensive, and the construction time is very short, and there is no need for manpower and material resources at all.

This thing is not only inexpensive, but also related to the upgrade index of scientific and technological authority, Cai Ruichen immediately had an idea, and surrounded all the places within a radius of ten kilometers of the base with a wall.

The radius of ten kilometers draws a circle, and the circumference is more than sixty kilometers, which is more than 60,000 meters when converted into meters, and divided by one hundred, that is, more than 600 walls need to be built to protect all the current buildable areas of the base.

600 walls will cost 300,000 funds, and it will take at least 300 hours, almost half a month.

When these numbers appeared in Cai Ruichen's mind with the thoughts, he realized that his thoughts were a little unrealistic.

At least at the current level of development of the base, there is simply no way to carry out such construction work. However, it also gave him an opportunity to defend quickly.