However, before Natasha could answer, he sighed first, shook his head, and said:

"Forget it."

In fact, at that moment just now, Ye Bing had thought about whether to add a self-detonation function to the chip.

Since his next plan is to introduce more survivors into the safe zone, the current living people are mixed, and it is likely that a few stinky fish will be mixed in, causing trouble for the entire base, so he wants to take advantage of the opportunity to distribute chips to find a way to control the actions of that group of people.

Even if the other party co-opts a group of artificial rebellions, as long as a button is pressed, they can be blown to pieces in an instant.

However, considering that in the end, Ye Bing still vetoed the idea himself.

At present, the development of the New Territories force is very rapid, and the trust and tacit understanding between the members are also rising, Ye Bing does not want to destroy the trust of the team members in this way.

Although there is such a thing as planting bombs, if Ye Bing doesn't say it, no one will know. But once there is a real incident of outsiders rebelling, the inside story of the chip with a bomb will always reach the ears of the team members, which will hit the trust and enthusiasm of the team members to a considerable extent.

From another point of view, even if a self-detonation device is not inserted in the chip, Ye Bing is sure to stabilize the situation. So there's no need to lose something big.

At present, the reconnaissance distance of 10,000 meters can initially meet the protection needs of the Doomsday Base.

LV2's war radar detection range has been expanded from 10,000 meters to 50,000 meters, that is, 50 kilometers, but the cost is quite expensive, and the price is "300 energy plus five ordinary quality magic crystals", such a price is obviously not something that Ye Bing can afford today, so it can only be put on hold temporarily.

After getting rid of the war radar, Ye Bing focused on the other two active skills.

After thinking silently for a while, he realized Natasha's purpose in finding these combinations of technologies for him.

If the enemy really uses an air attack, then the first thing is that the war radar will detect the air target and locate it at the first time. Feedback.

Then, with the powerful computing power of the base brain, the trajectory of the target can be calculated almost instantaneously, and the possible impact of the explosion can be calculated.

If only non-lethal missiles are hit, the base can be attacked by towers, causing the target to be detonated before it can get close to the base's range.

With the beam tower's current range of two thousand meters, coupled with its near-instantaneous attacks, it wasn't difficult to do that.

But on the other hand, if the missile carries more than the explosive yield that the base can withstand, two protection mechanisms can be adopted.

One. Forcing the missile to detonate at a greater distance from the base.

Second, reduce the shockwave damage taken by the base.

These two sets of mechanics, corresponding to each other, are the two active skills on the big screen.

After figuring this out, Ye Bing didn't hesitate, and unlocked all the two active skills on the spot.

The unlocking of the two active skills cost a total of four hundred points of energy, but Ye Bing didn't feel any pain, after all, they were all used on the tip of the knife. For the safety of yourself and your loved ones, it is worth it. Energy can be accumulated again when it is gone, but life is gone forever.

When he unlocked two Action Skills, Natasha's voice was immediately heard:

"Commander. We have more than two skills in use at our base. Please select two of them as primary and secondary skills. ”

Upon hearing this, Ye Bing couldn't help but raise his eyebrows and asked:

"Is there any difference between this primary skill and a secondary skill?"

Natasha replied:

"In the case of a small distinction in effect. Brain will prioritize the use of active skills, followed by secondary skills. In addition to this, according to the current level of the Doom Base. The main skill effect will have a 10% buff. ”

"And this kind of setting!" Ye Bing was secretly speechless, thought about it, and asked again: "Then once the active skills and secondary skills are determined, how long can they be changed?" ”

Natasha replied, "You can't change the content of the skill gauge when it enters the cooldown phase. In addition to that, you can change skill slots at any time. ”

Ye Bing nodded, so that he understood.

It seems that for a certain period of time, the base can only use two skills. Other times, don't think about it so much.

However, with only two skills, it doesn't feel like it's enough. After all, in addition to the three skills he already had, there were other useful skills in the tech tree, including passive skills, that he didn't use, which made him feel at a loss.

He thought for a moment and asked tentatively:

"Isn't there any way to increase the number of skill slots?"

He said this tentatively, but he didn't want Natasha to really give an answer.

"You can increase the number of skill slots in your main base by exchanging Base Enhancement Cores."

As soon as the voice fell, the large-screen interface jumped again, switching to another page of the tech tree.

On this page, Ye Bing only saw one item technology.

"Base Enhancement Core?"

He read it out silently.

Soon, he discovers that the technology doesn't need to be unlocked, and it can't be upgraded.

However, when he clicked further into the technology and saw the exchange production price, he couldn't help but shout in fright:

"Holy! Just kidding! ”

I saw that on the exchange price behind the item, a green crystal was drawn.

This image was the first time he had seen it since the creation of the Doom Base.

But even so, he could understand what it meant.

That means—

A green crystal!

For Ye Bing, this is the most "sky-high" item he has seen so far!

One needs a green magic crystal?

He has only gotten a green magic crystal until now, which is tantamount to asking for his hole cards!

After thinking about it, Ye Bing still shook his head resolutely.

No, no, you can't just use the Green Crystal so easily.

The precious value of this thing is immeasurable at this stage, and it is likely to be of great use in the future.

Not to mention anything else, once the gene development process of his second stage has reached a bottleneck of more than 90 percent, it is likely that this green magic crystal will be the key to determining whether he can advance to the third stage!

Thinking of this, he had to put the idea of adding skill slots on hold for the time being.

The two skill slots, although not much, are currently able to meet the needs of the base.

The position of the main skill, he planted Doom Mania. In terms of sub-skills, he chose not to be absolutely force field guard. (To be continued.) )