The sound of a beast's wheezing appeared in the dark alley, and about seven or eight living corpses squeezed the air into it with their noses. Air is a dispensable thing for them, and the alienated body has long needed the supply of oxygen, but the air has the favorite smell of living corpses, blood!

Whew.

Sticking out his tongue, he groped like a dog towards the source of the blood. Eventually, it was discovered by a living male corpse.

It was an oval-shaped object covered in blood. The living corpse stretched out its tongue covered with flesh and licked it upward, the tongue that could have licked the concrete under a layer, but it only brought a faint amount of blood with it when it brushed the little thing. Although the living corpse thought it was strange, the other companions behind it had already rushed up to grab the "food" in its hand, and the only intelligence left made the male living corpse make a decision.

It tossed the contents of its hand into its mouth, and swallowed it hard.

Turning around, the male living corpse was just about to leave, when suddenly, it felt hot and swollen in its stomach.

The corpse's stomach suddenly swelled, followed by a bright yellow glow under the skin. The next moment, the living corpse suddenly exploded, and along with its body, there was also a cloud of orange flames and a loud noise that resounded through the entire second underground floor of the base.

The flames of the explosion engulfed the living corpses nearby, and then rose in the alleyway, the light of the flames clearly visible for kilometers. So as the light gradually fell, more living corpses converged in this direction.

Zero took off his helmet, used his eyes to identify the flame rising a hundred meters away, and then gestured forward.

It was a simple trap he had laid to attract small groups of living corpses with grenades and blood stains, and then the flames from the explosion of the high-powered grenade attracted more predators on the second floor of the base. Zero was well-equipped, but their ammunition was limited, and they couldn't fight hundreds or thousands of living corpses. What's more, they still need to go deep into the fifth layer of the base, and they don't know how many monsters are waiting for them on the way.

Therefore, it is very necessary to save ammunition.

The second basement floor is the living and medical area. Judging from the size of this base, the food reserves in it are enough to live in the base for a long time. Moreover, the medical facilities supporting the living area can reduce the occurrence of diseases. It can be said that if it weren't for the fact that the living quarters were occupied by the living corpses converted by the base personnel, this was indeed a good place to live, especially after comparing it with the harsh shijie outside, it was like paradise.

In order to facilitate management, the living area is divided into three areas: A, B, and C. Three areas, each divided into six units. Among them, Area A is a living area, mainly for employees to rest, and the building complex also includes facilities such as a street park, and the environment is not inferior to the garden-style community of the old era; while Area B is a medical area, with no less than 3,000 doctors, nurses and logistics personnel stationed in the underground base, providing medical security for all the personnel in this huge base; as for Zuihou, an area is a grain reserve area, where various large warehouses are built to provide food needs for the personnel of the base on weekdays.

Naturally, the area of these three areas is not evenly distributed. In fact, Area A is equal to the sum of the area of Area B and Area C.

Right now, the four of them are still in the A2 area. They had to pass through Area A, cross Area B, and finally reach the safe passage of C6 to the third basement level. This is no ordinary task, first of all, the distance between the two areas is more than two kilometers, and there are many buildings and obstacles. You can't walk on the main road, the wide road is full of living corpses, and taking the main road is simply stuffing yourself into the mouth of the living corpse. This is one thing, and the other is that there are too many living corpses. Judging from the size of the base, it is not difficult to accommodate a population of 20,000 or 30,000. Except for those who died of accidents, starvation, or disease, as long as half of the remaining people became living corpses, then there were tens of thousands of such monsters in these two layers.

Come to think of it, with four people facing an army of nearly 10,000 living corpses, there is no chance of winning such a battle at all. When the Liliang gap between the two was not obvious, the Sea of Corpses tactic was enough to easily pile up the Zero Four.

As a result, a few people had to create some small traps to trick the crowd of living corpses on their way, and then carefully bypass them. In this way, the speed of progress is naturally not fast. It's been almost four hours since they entered the second basement floor, and it's not unreasonable that they are still wandering around Area A.

Found a small villa with a collapsed top floor and infiltrated it, and the four of them eliminated the danger of the three-story building, and after making sure that there were no living corpses, the four of them took this as a temporary foothold. Matthei was on guard, while the other three rested on the spot and took out the compressed food to eat. Every four hours of marching, there is a regular rest, which is to ensure the physical strength and combat effectiveness of the team members.

During this 15-minute break, the players try to relax as much as possible to reduce tension and fatigue.

Zero silently put a piece of compressed biscuit with no taste, but rich in nutrients and calories, into his mouth. He chews on the biscuits, allowing the saliva in his mouth to fully produce to help the stomach pouch absorb the food better. Although he believed that with his digestive system, even if he swallowed a whole biscuit, the energy in it would be absorbed without any left.

Just doing this, makes Zero feel more like a person than a machine, so he likes to eat this way.

After eating the biscuits, Su looked at Feng and said, "Tell me honestly, when we entered the second basement floor, where did you go." Don't tell me to go to Xiaojie, in that case it's okay to deceive the children. ”

Kaede looked at Zero with a look of wrongedness and said, "I'm not lying, the captain can prove it to me." ”

Zero originally closed his eyes and pretended to sleep, but when he heard this, he opened his eyes and said seriously: "He's not going to solve it." ”

"I asked Kaede to cause some trouble for the Pioneer Team. Zero added.

Su's eyes widened and he said, "Didn't the Pioneer Team go ahead of us?"

"No, they're hiding in the basement. Zero looked at Kaede and said, "When we entered the basement level, Kaede spotted one of them. ”

"It's Bridge. Kaede put away his expression, and a cold light flashed in his quiet eyes: "He should be the one in charge of monitoring us, it's ridiculous that he thought he was hiding very secretly, but I just walked into the first floor of the base and smelled the stench on him." ”

"Are you a human or a dog......" Su sarcastically said.

Kaede was speechless.

Zero coughed dryly, if he didn't interrupt, the two of them should talk again: "I can understand the approach of the Pioneer Squad, with Anthony's city government and intelligence, it is impossible for him not to know the meaning of the Chief Instructor's unrestricted words. If I were him, the easiest way to do it would be to stay at the exit and wait for the other team to grab the quest items when they get them. Therefore, it is not at all surprising that they will hide on the first floor and spy on us. ”

"By now, Bridges should be done playing. I can lead a Ripper and hundreds of living corpses to cause them trouble. Kaede said with a sneer.

Zero said lightly: "It's okay, as long as the Pioneer Squad's abacus can't be played." According to our previous Jihua, we will be the ones who will succeed in completing the mission by creating obstacles and problems for the other two squads while moving forward. ”

As soon as the words fell, Ma Pei, who was in charge of guarding the window, suddenly stood up and shouted, "There is a situation!"

Zero came to the window, and after the helmet activated the infrared vision, he saw that there were hundreds of living corpses downstairs bypassing the street park and approaching the villa where they were. Zero immediately made a retreat gesture, and the four of them did not go downstairs, quietly bypassing the villa and retreating into the residential area where the streets were connected in all directions.

But just after walking two streets, suddenly dozens of living corpses crashed in from around the corner at the front of the group. Zero immediately sent the team back, and before he wanted to, he turned around and saw the same number of living corpses coming up from behind. For a time, the Zero Four were surrounded by nearly two hundred living corpses.

"What is this, closing the door and letting the corpse go?"

Kaede was still in the mood to tell a bad joke, but no one could laugh. Zero's face was full of solemnity, the encirclement of living corpses, whether it was a coincidence or a heart. If the latter is the case, it means that the living corpses in this base already have intelligence.

There is nothing more terrifying than the evolution of intelligence by deviant creatures, and after all, there is only a small percentage of the human community. And after the cataclysm, human beings were able to survive under the claws of the harsh environment and dangerous mutant beasts, relying on wisdom.

If the other mutant beasts knew how to outflank the walls like the living corpses in this base, then there would be less room for humans to live. When the intelligence of mutant creatures further evolves, thus forming a social structure, and then learning to divide labor in production and make weapons, then the end of humanity is not far off.

But now, Zero doesn't have the time to think about the long term. What he was trying to avoid finally happened, and since the battle was inevitable, he had to be quick to fight. Otherwise, if the living corpses from other areas are rushed, it is estimated that the few people will not even have a chance to escape.

Zero stretches out his right hand, opens his palm, and squeezes it firmly. He made a gesture of all-out combat.

At this time, the living corpses of the zero four people were found, and they had already pounced on them with a scream. Among the living corpses, there were several living corpses with automatic pistols in their hands. And looking at the uniforms on their bodies, they should have been ordinary guards in the living quarters before they died. But the guns in their hands told a few people something, and Kaede's guess had become a reality. Among the living corpses that remain the instincts of the previous life, there are indeed individuals who can use firearms.

Without hesitation, Zero pulled out a pair of Browning pistols and fired a few shots in an instant. The tongue of fire in the muzzle of the gun was extinguished, and as soon as the gun rang out, the living corpses with guns in their hands were immediately shot in their eyebrows and fell to the ground and died.

As soon as he had done all this, ordinary living corpses had already pounced. Fight, just a touch!