In the sixth position, the follow-up treatment is in full swing, the soldiers either dig deep ditches with sapper shovels, or build high earthen walls and sandbags, this way of digging ditches and fortifications, and trapping deer pits, is nothing more than increasing the difficulty of the upcoming zombies, so as to leave enough time to shoot them.

Su Ziyan stood in the distance and watched everyone work quietly, at this time, as a powerful person, she enjoyed the privileges brought by being a woman, and naturally no one would ask her to do these heavy physical work.

Gu Zi found a stone and sat down, spread a piece of cloth on the ground, and then carefully placed the crystal nuclei that had just been harvested one by one, and slowly screened and classified them.

After a long time, Su Ziyan sighed, her crystal eyes narrowed slightly, and her calm face showed a burst of thought.

This harvest is very good, nearly 100 crystal nuclei have been harvested in a small effort, and after Su Ziyan's screening and classification, most of them are inferior crystal nuclei of very low quality, this kind of crystal nuclei does not have much value, there are more than 30 medium translucent crystal nuclei, the proportion is relatively high, and the clarification crystal nucleus with excellent quality has also harvested one, according to the market price, these crystal nuclei are enough to sell at a high price of more than 4,000 yuan, converted into grain, that is, more than 4,000 catties.

In the last days, there seems to be no industry that is more profitable than this.

The wealth is moving, and this experience made Su Ziyan finally understand why so many squads are keen on the development of the front line, and killing zombies is really a high-return business.

Just like gambling stones, if you kill ordinary zombies and harvest inferior crystal nuclei, of course, it is impossible to make a fortune, but if you are lucky enough to burst out a high-quality one, you can win the bet all of a sudden. In this way, the choice of "mining area" is very important, and when you find a "mining area" that is easy to burst out of high-quality crystal nuclei, the idea of greed and self-interest will easily make people think of eating alone.

Especially for those powerful evolutionaries, they are enough to deal with zombies, so they don't want the area they have discovered to be known by others. It's no wonder that there is a phenomenon of concealing the transformation of green corpses, which is all driven by interests!

Su Ziyan carefully put away the crystal nucleus, and then put it in a few pockets around her waist, "Well, after I go back, I will have to deal with these crystal nuclei, whether to sell them or keep them for my own use, I need to think about it." ”

Generally speaking, the high-level crystal nucleus must stay, which is very helpful for her to improve her "activity level", and now her activity level is A-level, and the evolution level is 466, which belongs to the second-level evolutionary.

Of course, you can also be promoted to a third-level evolutionary through your own accumulation, but you must know that when you enter a new level, the later you reach the later stage of the level, the more active you will be, and the longer it will take to improve your evolutionary level.

This crystal nucleus, for zombies or evolutionaries, is like a necessary nutrient, which can allow the absorbing party to complete the evolution. And the higher the level of crystal nuclei absorbed, the more obvious the effect. Su Ziyan didn't know what the mechanism was in, but if she thought about it simply, it should be related to the way of energy supply for evolutionaries or zombies.

"High-grade crystal nuclei should be kept for their own use, and low-level crystal nuclei are cheap, rather than selling, it is better to keep them for additional physical strength in the battlefield." Su Ziyan patted the pocket on her waist and said to herself.

In fact, for Su Ziyan now, the crystal nucleus with slightly worse quality is no longer able to stimulate her to increase her activity, and as each other's ranks are larger, the low-level crystal nucleus only has the effect of replenishing physical strength.

In general, this time Su Ziyan personally joined the operation of the No. 6 position, although the use of the ability consumed a lot of physical strength, but compared with the harvest, the consumption is not worth mentioning, strength is such a thing, take a break, eat two more bites, there will always be.

The only thing that made her feel regretful was that she had not seen a single high-grade crystal nucleus that was completely transparent, as if this was just a medium-sized "mining area" and did not produce high-grade crystal nuclei like Honglin Village.

After thinking about it, Yule walked over, looking at his strange face, Su Ziyan stood up and asked, "Is there news from the battalion headquarters?" ”

Yule nodded, exhaled a depressed breath and said, "The battalion commander has verified the military garrison of the entire Whirlpool after receiving the situation we reported, and the results show that the phenomenon of green corpses is not only happening on our side!" ”

Su Ziyan was stunned, and her eyebrows frowned slightly, "In other words, the phenomenon of green corpses is very common?" ”

"Yes, it is preliminarily estimated that about thirty percent of the gray-white zombies have turned into green corpses. And it is understood that as early as a week ago, there was a phenomenon of green corpses, but it was not paid attention to at that time, and when the front-line combat team found that the crystal nucleus had improved significantly, it was three days ago, but they did not report it immediately. ”

Su Ziyan was silent, thinking about it, she seemed to be able to understand the psychology of those people. After all, not everyone is a saint, and in the face of huge benefits, it is inevitable that they will not be able to control themselves.

Take herself as an example, she harvested so many crystal nuclei at once, and she was also a little surprised in her heart. Shaking his head: "I don't know if these green zombies will eventually become blue-gray zombies, but at present, the zombies that have turned into green corpses don't seem to have much strengthened mobility." ”

"The battalion commander has already reported the situation here, and I have to wait and see what happens, I hope these zombies don't evolve too obviously!"

"That's all there is to it." Su Ziyan nodded.

Zombies can also evolve over time, which can't help but sound the alarm bell for humans, and now ...... It doesn't seem to be the time to settle down with what happens.

"By the way, Platoon Commander You, is there anything else?" Glancing at Yule strangely, Su Ziyan asked.

"That's right, just now the battalion headquarters received news that the helicopter search team of the base found a survivor gathering place not far in front of the sixth position, where there are nearly fifty survivors, are facing the siege of zombies, the situation is very critical, considering that our side has basically cleaned up the zombies, the battalion headquarters requires us to rescue them, as for the guards here, the battalion headquarters will send other combatants to supplement the ......"

"Earlier, found survivors?" Su Ziyan looked ahead and frowned. The sky over there was gloomy, and it seemed that there was a possibility of a storm at any time, which invisibly brought inexplicable psychological pressure to people.

"Yes, about three kilometers from here."

"It's not very far away, but isn't there still more than a thousand zombies waiting to be cleared on the sixth position, judging from the direction, the source of those zombies may be the place to be rescued this time, our number is only more than seventy, doesn't it really matter if we go rashly?"

"The situation is urgent, we can't take care of so much, we must rush over immediately, and the battalion headquarters has taken this into account and is mobilizing the Evolvers to act with us...... But it will take some time for them to come. ”

"Captain Su, I personally have a reluctant request, I hope you can assist us this time!" As he spoke, Yule glanced at Su Ziyan seriously, waiting for her answer.

The participation of combat teams in the expansion of the front line is a kind of mercenary behavior, and the military does not have the right to force someone to participate in a specific military operation, after all, life is precious, they do not belong to the military establishment, and there is no obligation of absolute obedience.

To go or not to go, it is up to the individual to choose.

After listening to this, Su Ziyan thought for a while, and just when Yule thought she was going to refuse, Su Ziyan nodded at him and said, "Saving people is like fighting fire, I can participate in the operation with you, but this is my personal choice, my team is not a regular military force after all, so I hope they can stay." ”

"This is no problem, Captain Su and Captain Zong's team can stay here and wait for the arrival of follow-up fighters." A smile appeared on Yule's face when he heard that Su Ziyan agreed to assist, he believed that with Su Ziyan's joining, it would be very helpful to improve his combat effectiveness.

In fact, in the process of defending the position, encountering sporadic survivors, which often happened in the days when Yule arrived at the front line, those survivors who have survived until now, most of them have relied on the advantages of terrain or buildings to have a foothold, and the rescue process is relatively calm, but like today, it is indeed the first time that you must go to the rescue immediately.

Next, after Yule was resolute and resolute, after conveying the news, he began to count the number of people and the weapons and ammunition that needed to be carried, and then took all the forty-five soldiers of the second company and three platoons, plus Su Ziyan, Zhang Wenming, and Su Zhanliang, three people with a certain military foundation, a total of 48 people were ready to set off.

Zhang Wenming and Su Zhanliang took the initiative to join in after learning the news, while Jiang Yan, Zong Li, and other members of the team stayed behind to guard their positions and wait for the arrival of the rear personnel.