It took half an hour to upgrade the life potion to LV3.

With a prompt sounding, Ye Bing switched the interface to the general column again, and found that the life elixir LV3 was already in a productionable state, and the production time was 10 minutes, and the energy cost was 10 points!

Such a price is expensive even for Ye Bing now. You know, the price of building a LV1 beam tower is only 2 energy costs, and this life potion is worth five.

Even so, Ye Bing didn't feel anything. In his heart, Uncle Ji's life is incomparable to anything else, let alone a mere 10 points of energy.

His concept of base development has always been: when the energy is gone, you can earn it again, but once you die, you can't come back.

At the beginning, he even thought that since he wanted to cure the disease, he would simply do it in one step and produce a more advanced life elixir. However, due to the lack of technology tree level, the life potion could not be upgraded to a higher level, and if he wanted to upgrade the technology tree, it would take too much time, so he had to give up this idea for the time being.

After producing two LV3 life potions in one go, there are still 107 points left in the base energy storage.

He thought about it, and took out forty points of energy from the base's energy storage to produce twenty sets of tights, five assault rifles, and a full fifty magazines, and prepared to hand them over to Su Chengtian along with the previous few tights.

These are the things that Ye Bing can use to help the black crescent moon to the greatest extent at present, no matter how much it can play a role in the future, at least his intention is there. Besides, with so many weapons and equipment, even if it is not huge, it will not be called shabby.

After all this was done, the base energy storage fell to double digits again. However, there are also a full 67 points. Ye Bing had already arranged these energies.

He quickly switched to the building screen, found the beam towers, and spent ten energy points per tower, all of which were upgraded.

Two huge white clusters of light quickly enveloped the surroundings of the beam tower, spun rapidly. Upgrading from LV2 to LV3 takes 30 minutes. The attributes will also be revealed after the upgrade, so Ye Bing did not delay, after jumping out of the beam tower column, he quickly pulled down the interface, and soon found two other newly unlocked defensive buildings, which are-

Multi-tube laser towers and ...... Shock the heavy battery!

Similarly, before the appearance of buildings, Ye Bing could not see their detailed properties, but judging from the basic introduction. The former should be a high-rate-of-fire, medium-power, low-range defensive structure that strikes enemies within range indiscriminately, and will not target a specific target.

Compared to the former, the detonation heavy battery is very different. Based on the basic introduction, this is supposed to be a defensive structure with a low rate of fire, low range, but with terrifying lethality, and just from the words "powerful" in the introduction, you can judge that its power must be extraordinary.

The above two newly unlocked defensive structures are suitable for different combat situations. The former is more of a swarm of crispy skins that are numerous, while the latter is focused on tackling opponents that are difficult to solve with beam towers and multi-tube laser towers. These three types of defensive structures work together. The sturdiness of the base will be raised by another level.

As for the construction cost, the multi-tube laser tower costs fifteen energy costs. The Shock Heavy Turret, on the other hand, has reached a full 30 energy costs, which can be said to have overshadowed all the construction costs so far.

But despite this, Ye Bing resolutely chose this investment, because he knew that strengthening the defense capability of the base was like building a road for a poor village, in the long run. There is absolutely no loss.

As the two newly emerged light clusters appeared in the protective circle of the base, the base energy storage fell again and again, and there were less than thirty points left. With less than thirty points of energy, Ye Bing did not choose to use it for anything else, but produced all the pseudo-magic crystals and rifle magazines needed by the mechanical corps.

And so it goes. A full 137 points of base energy storage were consumed again.

Ye Bing was also free and easy, after completing all this, he no longer glanced at the screen, and directly took a large bag and a small bag and went to the safety area alone.

When he returned to Ji's house, Su Chengtian was already waiting there early.

"Xiaoice, why did you bring so many things here!"

Looking at the big bags and small wraps on Ye Bing's body, each of which was full of them, Li Shuyue couldn't help but ask in confusion.

Also having doubts were Ji Xiaoxiao, Su Chengtian and others, all of whom looked at Ye Bing in a daze, not understanding what he meant.

Under the gaze of everyone, Ye Bing put all his backpacks on the ground, only took out one of them, and then pointed to the remaining backpacks and said to Su Chengtian:

"These are for you. Can you take it back? ”

Su Cheng was amazed and said, "So many! ”

She crouched down, grabbed two backpacks, and asked, "Can I open it and see what's inside?" ”

Ye Bing replied indifferently: "Whatever, it's all for you anyway." ”

Hearing this, Su Chengtian could no longer hold back his curiosity and casually unzipped the first backpack.

A bag full of rifles and magazines.

A look of excitement flashed in her eyes, and she reached for a second backpack.

It's still full of rifles and magazines.

She couldn't hold back her joy and asked:

"Ye Bing, how many guns did you bring us this time?"

"There weren't many rifles, only five. However, there are fifty rounds in the magazine, which is enough for you to use for a while. Ye Bing replied lightly.

"Fifty sticks!"

Su Chengtian repeated in surprise, but his face was a little embarrassed.

"Thank you......" she said slowly.

"You're welcome." Speaking of this, Ye Bing seemed to suddenly think of something, and said, "Oh, besides, the two people I'm looking for have to trouble you to help me keep an eye on it." ”

He said this to look like he was making a deal with the Black Crescent, but in fact it was just to make Sioux feel better.

He knew that she was a woman with strong self-esteem, and she was even the most face-saving one Ye Bing had seen in more than 20 years. However, after meeting Ye Bing, there was more of a request between her and him than cooperation, of course she knew this imbalance, but on the other hand, she couldn't push away Ye Bing's help just because of her own strength, after all, it was related to the safety of dozens of sisters in the organization and more women to be rescued. In such a difficult position, it is often inevitable to be embarrassed and cramped when facing Ye Bing.

Su Chengtian is not a stupid person, although he looks very bold on the outside, in fact, his mind is no worse than other women.

She obviously understood what Ye Bing meant, and she couldn't help but feel a little more grateful in her eyes when she looked at him. (To be continued.) )