Chapter 640

How could I appear in front of you alone? I won't say much now. Play with this big guy and see if my research results are much stronger than you think. "

Before Su Chen could say anything, the giant's hammer greeted Su Chen. Su Chen immediately dodged and pulled out his gun to shoot the guy.

I didn't expect to empty all the bullets in the magazine, but the other party didn't lose any, not even a hole in his body.

I have to admire Bert's brain is too powerful.

And I never thought I would be an enemy with Robert in the future.

But now there is no way but to kill the big guy first, otherwise he will die in the hands of the big guy.

And Robert will appear again soon. If he can't solve it in a short time, there may be something strange.

Su Chen threw away his pistol, then took out a special dagger and stabbed the other party.

This kind of dagger is also a powerful alloy, which was very useful for alien beasts.

It should also be useful for zombies. Unexpectedly, it just poked a few holes.

But there was no other lethality, and there was no blood flowing out of the these holes.

It can be seen that this kind of thing is better than the extraterrestrial giant beasts, and can't deal with it.

Su Chen's heart was bitter, but now he was ready to avoid this guy's edge.

If you want to fight hard, you may become the ghost under this guy's hammer.

Although this man has great combat effectiveness, he does not have a flexible body.

Because his body was too big, Su Chen's vigorous body helped him save a piece of news and soon returned to the base camp to announce his failure.

But the only gain is to know that Robert is still alive, has a strong scientific research team, and has made considerable research results.

And this also makes Su Chen annoyed. So what should we do with this big guy next?

And is there only one big guy? If it's a group, what should I do?

However, after judging the result, Su Chen found that it was unlikely.

After all, this is a huge project. Su Chen judged it.

The big guy is just an experiment.

It's really hard to deal with if you make more.

So Su Chen must also step up the offensive to destroy Robert now.

And destroy all his team.

The three girls also felt unprecedented pressure.

I didn't think Robert would form a big climate. I didn't expect that a team of more than a dozen people would be so difficult to deal with.

Now even Su Chen is at a loss. If Su Chen has never been a negative person, he will immediately invest in scientific research.

And prepare to develop a bullet.

The bullet must be able to penetrate each other's body and explode in the body, in this case.

Even how big it is, it can't form any combat effectiveness.

With such an idea, after the blessing of Su Chen's super brain, this bullet finally came out within a month.

During this month, Su Chen carried out some research day and night.

And the attack group is absolutely not allowed to enter the area where the zombie is located, because it is very unsafe.

Now humans can't beat these giants at all. They are still closely monitored without knowing the number of these giants, but they are not allowed to move.

But now it's different. Su Chen immediately put all the people of the attack group in front of him.

And he gave some of his newly developed bullets to the elite of these people, including Ye Qingcheng.

"This is the result of my closed door research for several months. It seems to be no different from ordinary bullets.

It's just black.

From now on, your regular bullets will not be used again.

Immediately replaced with this black bullet. Of course, the production line has not been established yet.

So now it's just a test to see if it works on those big zombies. "

The team led by Ye Qingcheng entered the zombie area and contracted everywhere.

Of course, he knows very well that these big men are likely to appear at any time.

After all, they didn't know that Su Chen had also developed this kind of black bullet.

Sure enough, there was only a big hole in the ground in 20 minutes.

Soon a big zombie came out of the big hole.

It is already clear that Robert's laboratory is located underground.

The big zombie immediately attacked them. The terrible sledgehammer in his hand would smash each other into meat sauce if it hit a person.

Ye Qingcheng knew that if the black bullet didn't work, his team would not go back.

All will be reimbursed here, but this girl has always been a bold and careful person.

He immediately took out his pistol and shot the guy. Unexpectedly, the big man just raised his thigh and had no time to put it down.

It had been hit by a black bullet and broke to pieces with a loud noise.

Then a steady stream of big zombies climbed out of the ground and were killed by them every minute.

However, the number of such bullets is quite limited. If this continues, the final battle will tilt towards Robert.

Therefore, ye Qingcheng had to withdraw from the battlefield. Of course, now that Su Chen found it useful, he immediately continued to produce a large number of such bullets.

Although this kind of bullet is no different from other ordinary bullets, it is quite laborious to produce.

It's not that the process is very laborious, but a considerable lack of resources is substance X.

This X substance comes from the universe, and Su Chen proposed this substance after many experiments.

In other words, in the big bang hundreds of millions of years ago, this material came to the earth.

It was only after su Chen found out that he formed the current bullet.

But it is really a very difficult thing to find this substance.

So far, Su Chen has only found one mine, but the concentration of this mine is very small.

In other words, a mine can only produce hundreds of bullets, and hundreds of bullets are far from enough.

So now he can only avoid the edge, but Robert doesn't know this now. Su Chen also regards this as a first-class secret.

Everyone is not allowed to divulge secrets. If the other party knows that there is only a small amount of this black bullet, it will launch an unscrupulous attack.

So Robert doesn't know what happened to Su Chen now, and he doesn't dare to act rashly.

However, it is also constantly improving the big man's zombie, which has become Robert's sign.

As long as this big zombie is here.

Then Robert is at ease and is constantly improving.

He also believes that even if the other party has this black bullet, if it goes on like this, the perfection of the big zombie will reach a perfect level.

Both sides don't know the details of each other, and they are constantly testing. Robert is also a very smart man.

Seems to feel Su Chen's lack of confidence.

I also thought about whether the ammunition was simply inadequate at this time.

Of course, now it's just an idea. A huge zombie team was sent immediately to test whether it's true.

However, this is not an easy thing. Su Chen naturally knows each other's tentative moves very well.

Ye Qingcheng surrounded the whole human world with an armored group.

Especially the part of Su Chen's laboratory.

However, the combat effectiveness of these big zombies is not much worse than that of tanks.

After fighting between the two sides, dozens of tanks were also lost.

The other party also has about a dozen losses.

It can be said that this kind of natural damage made Su Chen completely unimaginable.

What Su Chen must do now is to find more mines.

As long as there is more substance x, Su Chen is relieved.

In the current situation, if we can't find a large amount of substance x, it will be impossible to keep the precarious situation.

On the one hand, Su Chen strengthened the personal equipment of his brothers.

On the other hand, ye Qingcheng must guard the laboratory and the human world.

It must not be enough to move the zombie forward, otherwise it will be a great disaster.

And human beings are really flustered now.

Before, it completely simulated zombies in the system.

I didn't expect such a big difference. Although the previous zombies were also very powerful, they could be dealt with.

Now this kind of zombie basically makes human beings feel powerless.

No matter how powerful it is, it can't be strong enough to kill the corpse of this giant.

Although Ye Qingcheng knows that he can't resist for long, he must buy time for Su Chen.

Su Chen knows that if he can't find the mining area of substance X in a very short time, he will basically be powerless.

Ye Qingcheng commanded the armored group to fire at the huge zombies, but these soldiers could not be destroyed at all, but would be shot tens of meters away.

Then slowly stand up and continue to attack them, and then restore combat effectiveness.

If this situation continues, even the tank group can't resist these zombies.

Not to mention Robert behind him, he will soon know what happened to Su Chen.

That means Su Chen has no confidence at all. The number of black bullets is very rare.

However, the more anxious Su Chen was, the more he did not achieve any results. He encountered a great setback in looking for substance X.

There are only a few x substances in this mining area, and it is impossible to produce a large number of black bullets.

Just as Su Chen was dejected and ready to think of other ways, she found that it was a tree.

The smell from the nearby trees is very similar to that of substance X.

At this time, Su Chen's neighbor immediately cut off a piece of bark and smelled it carefully.

It is found that substance x is basically not much different, but I don't know whether substance x can be extracted from it.

Su Chen immediately collected all biological scientists to study this kind of thing. After a night's research and meeting, he agreed that this substance was equivalent to substance X.

Moreover, this kind of tree is widely distributed in this area, and there is no problem in defeating zombies.

The next problem is the production. The production line must be completed within 10 days, which is a lot of work.

So if you can resist these zombies for 10 days now, is it OK? Su Chen is completely beating drums in her heart.

Because the sound of tank bombardment not far from the front has become weaker and weaker, which shows that the tank group is constantly being downsized.

It can be said that if you really call in.

Then everything will be over.

Once this advanced laboratory is destroyed, human beings will be destroyed.

Of course, we can only surrender obediently or be destroyed.

Ye Qingcheng and Xia Ruxue are really under great pressure, but they are still resisting.

Tanks are constantly consuming.

The tank torrent is consuming one side, but the big zombies on the other side continue to appear, sometimes even more than 10.

This shows that Robert is constantly making this kind of zombie.

And this kind of zombie is still improving.

Even more powerful than one batch.

It is impossible to insist on 10 days, but it is also a task that must be completed.

Su Chen now has no time to command his attack group, and gives all the command to Ye Qingcheng and Xia Ruxue Ruyan sisters.

Su Chen's only wish now is to set up the production line quickly.

Then produce enough black bullets to relieve the pressure in front.

The tank group has been unable to stop the attack of these big zombies.

In any case, now we can only hope to use flesh and blood to resist the enemy's attack.

The brothers also gave awesome power, especially those who were trained by Suchen.

Although they can't compete with these big men, they show heroic spirit.

Many people died with the enemy with high TNT explosives.

Fortunately, there are not many big zombies in the enemy.

One batch is just more than 10, and if you want to wait for the next batch to reappear, you must wait for about three or five days.

It can be said that Robert is not very relaxed, and there are not enough people. There are only more than 10 scientists under his hand.

It really resisted for 10 days before there was a huge sacrifice.

More than 100 of these big zombies have died under the hands of humans.

But now there seem to be more big zombies.

Because the other party seems to have found a way to copy these zombies.

Su Chen's current production line has also been established and began to produce a large number of black bullets.