Although Jiang Liushi was not afraid of Chu Chongshan, the appearance of Chu Chongshan still gave Jiang Liushi a sense of crisis.

In Zhonghai District 1, Jiang Liushi naturally didn't worry about what Chu Chongshan could do to him, and he didn't have the ability to do so.

But if you go out of Zhonghai Area 1 and are in the wild, in that case, if Chu Chongshan can call on heavy weapons, such as a Type 99 main battle tank, it will still bring a life and death crisis to Jiang Liushi!

Tank guns, that's no joke.

So now, the first thing Jiang Liushi has to do is to strengthen the base car, from tires, bulletproof glass, to armor, and comprehensively strengthen.

It's okay to talk about the materials needed for strengthening, but the mutated crystal nucleus has become a problem.

The current Zhonghai City seems to be surrounded by a tide of corpses, and the zombies around Zhonghai City don't know how, and there are mutant beasts mixed in the zombie group, with the cover of zombies, the threat is great, and many survivor squads have rarely gone out to hunt, even Jiang Liushi feels that it is very dangerous to go out of Zhonghai District 1 now.

He needs a mutated crystal nucleus, the more the better.

But where is this mutated crystal nucleus?

Because the military region wants to study evolutionary crystallization, the control of mutant crystal nuclei is becoming more and more strict, and the price is high and the quantity is limited when it is purchased from the survivor squad.

Moreover, Jiang Liushi took stock of his current net worth, which was also very limited, and the storage space of the base car contained a lot of food and mutant beast meat, but compared with the mutant crystal nucleus, the value was much smaller, and it was really used to acquire the mutant crystal nucleus, which was actually overstretched, and he also needed to complete some tasks to get more wealth.

Of course, Jiang Liushi still has a first-level mutant zombie blood core in his hand, if this thing is sold, it will be a large amount of income, but Jiang Liushi doesn't want to use it for the time being.

Jiang Liushi estimated that according to the independent modification function of the base vehicle, at least fifteen to twenty first-level mutant crystal nuclei would be needed to replace all the bulletproof steel plates of the base vehicle with first-class armor, and the tires and bulletproof glass would also be upgraded.

That's a lot of money.

And that's just a minibus.

The armor strength of the minibus and the mining truck are shared, and now the minibus is only bulletproof steel plate except for the ramming angle and the first-class armor of the war compartment.

Mining trucks, on the other hand, are much larger in size, and if they have a much weaker defense than steel plates of the same thickness, they are much weaker than minibuses.

After all, the mining truck is just another form of the base car, which is deformed by the minibus, not another vehicle, and of course the two share the armor strength.

But......

Once a medium-sized bus weighing only a few tons is transformed into a mining truck, and the weight of steel suddenly increases to 100 tons, then the first-class armor that originally has super protection will also be dispersed on the mining truck, so that the strength of the steel plate of the same thickness of the mining truck is still weaker than that of the medium-sized bus.

If you want the armor strength of the mining truck to reach the level of first-level armor, you need more mutant crystal nuclei.

If the transformation of the first-level armor of the mining truck is really completed, it will be terrible, the mining truck is too large, both the impact and the defense power, are not the same as the medium bus, it is estimated that at that time, the weight of this giant will exceed two hundred tons, enough to withstand the frontal bombardment of large-caliber armor-piercing shells.

Of course, these are just Jiang Liushi's assumptions, and he still has to honestly collect materials.

"It's a pity, several mutant rats were killed in Tongnan City at that time, although this mutant rat should not be able to reach the first-level mutant beast, and the mutated crystal nucleus in the body should also be inferior, but it is a mutant crystal nucleus, and a few of them add up, it is enough for a first-level mutant crystal nucleus......

Jiang Liushi felt a little pity, he only had a mutant crystal nucleus in his hand now, and the four tires he used to upgrade the base car were not enough.

"When the tide of corpses is over, let's go hunting......"

Jiang Liushi now only hopes that the corpse tide is temporary and will disperse soon, otherwise, it will be difficult for him to get out of the city, and he will really have to sit and eat empty.

Just as Jiang Liushi was thinking about this, the security door of the apartment was knocked again.

"Huh?"

Jiang Liushi's heart moved, and he looked at Ran Xiyu.

Now that there is Chu Chongshan, the enemy, it is better to be careful.

"There was only one person outside the door, it should be just an ordinary person, and he didn't sense any obvious malice." Ran Xiyu glanced out of the door, and then spoke.

Jiang Liushi nodded, it was too convenient to have Ran Xiyu's ability.

At this time, Sun Kun had already spontaneously run to open the door.

After the door opened, a man in military uniform came in, Jiang Liushi glanced at the man's epaulettes, two bars and one star, it turned out to be a major.

Of course, after the end of the world, sometimes the military rank is no longer useful, even if you are a regiment commander, if all the soldiers under your command die at the beginning of the end of the world, it will be useless.

In these last days, what determines a person's status is strength and power, and only those under him must be able to do it.

"Are you ......" Jiang Liushi was a little puzzled, he had never seen this person, and he didn't know what this person was doing.

The officer was not tall, his skin was a little dark, but his teeth were white and neat, and his smile was all revealed: "I am from the General Staff of the Central Naval Region, a head of the General Staff, and I want to see Mr. Jiang." ”

"Oh?"

Jiang Liushi was a little surprised, "You want to see me?" Do what? ”

Jiang Liushi has a strong sense of vigilance against the military region, there is a Chu Chongshan, Jiang Liushi will naturally be careful, even if he is in his own territory, if he goes to other people's territory, it is not safe.

The major officer seemed to have guessed Jiang Liushi's thoughts, and he smiled: "Mr. Jiang, don't worry, I'm not from Chu Chongshan, my chief, and it has nothing to do with Chu Chongshan, if you can, Mr. Jiang still has a face, the chief has already made a pot of good Longjing Mingqian tea, just waiting for Mr. Jiang to come." ”

"Huh?" Jiang Liushi was a little surprised, in these last days, coke is considered a luxury, let alone a good pot of tea.

Zhonghai is close to the origin of Longjing tea, before the end of the world, although there are many Longjing, almost tens of hundreds of yuan a catty, but the real good Longjing, the price before the end of the world is also tens of thousands, after the end of the world, this kind of tea is afraid that it is very rare.

It is estimated that even the high-level officials of Zhonghai District 1 are not very reluctant to drink good tea, which makes Jiang Liushi a little curious, and wants to know what this chief is looking for him.

He couldn't help but glance at Ran Xiyu, and Ran Xiyu nodded slightly.

This means that the officer is not lying.

From this point of view, this chief has no malice in looking for himself, at least it will not be a trap set by Chu Chongshan.