Ding Sicong is still like a dream until now. He had no idea what the whole thing was all about. It is even more unclear why Wang Xiaotian is here.

So he said, "I'm also confused when I talk about this." Three days ago, someone from the Department of Homeland Defense suddenly approached me and told me to immediately pack up and wait in the department's office building. ”

"I don't know what they're going to do. When I asked them, they also said they didn't know, but just acted according to the orders of their superiors. I had no choice but to do what they asked. ”

"I waited from two in the afternoon until seven o'clock in the evening. I was anxious and restless. I even wonder if those people are deliberately trying to manipulate me. ”

"Just when my patience ran out and I was about to quarrel with them, Commander Lin, accompanied by a major general, came out of the building. When I saw Commander Lin, I was speechless with excitement, and tears fell down my face. ”

"Commander Lin patted me on the shoulder and said three words to me, first, he is now the commander-in-chief of the Northern Border Guards, and he will immediately take office. Second, send his news home as soon as possible to reassure his family. Third, come back as soon as the news is delivered, and someone will send me to him. ”

After Commander Lin finished speaking, he hurried away. I stood there for more than ten minutes. It feels like I'm in a dream. When I reacted, I immediately drove to the secret contact point arranged by Mrs. Lin, and asked them to use the remote communication equipment to transmit the news to Mrs. Lin in accordance with the secret language agreed in advance. ”

"I stayed at the secret contact point and didn't sleep all night. In fact, I couldn't sleep at all. It wasn't until I received a reply from Mrs. Lin the next day that I was convinced that all this was not a dream. I immediately rushed to the Ministry of Homeland Defense, and sure enough, someone arranged for me to rush to the headquarters of the Northern Border Guard in the giant eagle transport boat. ”

"Oh, that giant eagle traffic boat, don't mention it, I will never sit again in this life, dizzy and bumpy. It can toss people and even spit out bitter gall. ”

Wang Xiaotian was actually stunned when he heard Lin Shaotang come out. It was only at this time that he reacted, grabbed Ding Sicong's arm, and said eagerly: "You just said that Commander Lin came out?"

Ding Sicong nodded, "Yes." ”

"He also became the commander-in-chief of the Northern Border Guards?"

Ding Sicong nodded again, "That's right." ”

Wang Xiaotian asked again: "The jurisdiction of the Northern Frontier Army is in the south of this?"

Ding Sicong smiled: "That's right. You didn't steer. ”

Wang Xiaotian suddenly smiled, "It's good that he's fine." ”

Ding Sicong felt that Wang Xiaotian seemed to have unloaded a heavy burden, and the whole person was relaxed.

Before he could figure out what was going on, Wang Xiaotian took his arm and walked in, and asked with a smile as he walked: "By the way, what did you say just now, what are you doing here?"

Ding Sicong said: "We are here to observe the situation on the front line and guide the artillery. ”

"Oh, that needs to be a place with a better view and a higher position. I'll take you there. ”

Wang Xiaotian took Ding Sicong and another officer to the observation room on the top floor of the tower pedestal.

Wang Xiaotian pointed outside and said, "Come and see." ”

Ding Sicong walked over and saw that the ground outside was almost covered with the corpses of strange birds and monsters. The corpses, without exception, were all in the form of dried corpses.

The corpse in the near distance can still be seen clearly, whether it is a strange bird or a monster, and further away, the shape of the corpse cannot be discerned at all, only a large piece of black pressure can be seen.

Ding Sicong couldn't help but exclaim, "So many! No wonder it stinks so much outside." ”

Although there is an air purification system in the tower, you can still smell a stench. However, compared to the stench outside, which is almost impossible to breathe, the environment in the tower is almost heavenly.

Ding Sicong picked up the huge telescope-like thing, put it in front of his eyes and looked into the distance carefully for a while, and said: "The area with the highest concentration of monsters is located twelve kilometers away from the tower, and the best position to cover it with artillery fire should be between twelve kilometers and three kilometers. ”

"Due to the obstruction of the hillside, there is no place for the shells to fall within three kilometers of the tower. Between twelve and seven kilometers, the use of extended-range shells is required. ”

"Lieutenant Colonel Lu will send it back first according to this parameter. Let the artillery be ready at once. Always on your orders. I see that a new wave of beasts has emerged. ”

Lieutenant Colonel Lu unloaded the large box behind him and began to get busy nervously.

Wang Xiaotian took a closer look from the window, nodded and said, "That's right, those strange birds have already come." The monsters on the ground soon appeared. I'm going to get ready, too. ”

Wang Xiaotian hurried back, and before he reached his room, he saw Cao Lian standing there with a smile.

Wang Xiaotian was overjoyed and asked, "Mercy, is the promotion still smooth?"

Cao Lianyou nodded and said, "Aunt Ling'er said that it went more smoothly than expected. ”

"That's good. Wang Xiaotian rubbed the top of Cao Lianyou's head and said, "From today onwards, you will be a powerful cultivator. In the future, you have to be on your own, and you must face danger bravely, and you can't cry anymore. ”

Cao Lianyou stretched out her hand and knocked his hand away, and said angrily: "I didn't cry my nose." Don't touch my hair, Aunt Ling'er finally tied my braids. ”

Wang Xiaotian laughed twice and rubbed it twice before taking it back.

Cao Lian snorted and waved her fist to hit him.

Wang Xiaotian immediately dodged, and said while dodging: "The strange bird is coming soon, and you can't surpass me if you don't take your place again." ”

When Cao Lianyou heard this, she gave up chasing Wang Xiaotian and quickly ran to her rapid-fire cannon room.

The plan is clear! Wang Xiaotian smiled proudly and also entered his rapid-fire cannon room.

The third wave of the beast tide had progressed for a third time, and Wang Xiaotian obviously felt that something was wrong. In the last wave of beasts, killing a monster bird only requires 473 shells. This wave of killing a monster bird requires 627 pieces, which is an increase of nearly one-third!

And that's not the most important thing. Due to the increased number of shells and the difficulty of killing, the number of monster birds shot has also decreased!

In the last wave, Wang Xiaotian killed 45 strange birds. This wave of Wang Xiaotian is estimated to be about 30.

The decrease in the number of shots means that the number of strange birds and monsters rushing through the defense line has increased. These monsters can only count on Zhou Ziheng and Hu Minghui.

What worries Wang Xiaotian even more is the energy reserve of the fence system. He clearly felt that the emission interval of the particle beam was a little longer, and from the curved screen in front of him, he saw that the number of energy reserves was rapidly decreasing. It's twice as fast as the previous wave.

The fence defense system is actually the main force to resist the beast tide, and they are just auxiliary forces. When the fence system runs out of energy, that's the darkest hour.

Just when Wang Xiaotian was worried, he suddenly heard a piercing scream, whistling from the top of the tower. Soon there was a loud explosion from the front.

Not long after, Wang Xiaotian faintly felt that there was a series of slight vibrations on the ground. He immediately understood, it turned out that the heavy artillery of the northern border guards had opened fire!

Outside the tower, Zhou Ziheng put down the "Dawn" and saw a series of explosions in front of him, blowing up the dense group of monsters in a mess.

"The power of artillery is so great!" Zhou Ziheng was secretly happy in his heart.

However, his joy did not last long, and he saw many monsters that had been knocked to the ground by the blast wave, rolling on the ground one by one and standing up, and continuing to rush forward.

Moreover, more monsters rushed in the back, stepping on the corpses of monsters that were blown to the ground, as well as the bodies of seriously injured and dying monsters, merging with the monsters in front of them and forming a surging beast tide again.

A new round of artillery fire roared again, tearing the newly formed beast tide apart. Then the surviving monsters continued to rush forward without fear again.

Zhou Ziheng sighed. The artillery looks like a lot of momentum, but the lethality is not very rosy. He lifted "Dawn" and continued to shoot the monster.

Hu Minghui, who was not far away, also took out a short gun this time and shot the strange bird that slipped through the net in the air. THIS SHORT GUN HAS A QUAINT SHAPE, COMPLETELY FROM THE ARQUEBUS OF THE OLD ERA.

The difference is that after the arquebus shoots a shot, it needs to be loaded with gunpowder and projectiles, and then the arquebus is lit and fired again, which is very troublesome. Although this gun is shaped like an arquebus, it is actually a Force weapon, and in Hu Minghui's hands, it can also shoot continuously.

This is because, with Hu Minghui's realm and strength, shooting a sixth-level mid-to-high-level strange bird doesn't need to charge up at all. So this arquebus, which seems to be only able to shoot a single shot, truly realizes infinite bullets and infinite shots. It's just that the scene is unusually unharmonious.

The artillery continued to fire ten rounds, and the group of monsters at the front entered the blind spot of artillery firing. At this time, Zhou Ziheng had already changed into a seventh-level spear and continued to hunt monsters.

Hu Minghui turned the Force gun in his hand into a heavenly maiden scattered flowers. The huge corpses of the strange birds fell from the sky and smashed heavily on the ground, stirring up clouds of smoke and dust, covering themselves inside.

The artillery fired three more rounds. However, this time the shells have been replaced with incendiary bombs. A layer of corpse-like corpse-like corpses of strange birds and monsters piled up on the ground, and the incendiary bombs exploded, instantly igniting them, instantly forming a wide sea of fire.

The group of monsters running wildly behind suddenly plunged into the sea of fire, and the whole body was on fire. Even so, the monsters kept rushing forward. Some burned directly into ashes in the sea of fire, and some rushed out of the sea of fire and fell headlong into a lonely bonfire.

Hu Minghui waved his sleeves, and a whirlwind took away the smoke and dust. When he saw the sea of fire in front of him, he couldn't help but be stunned.

He observed the situation for a while, nodded, and said loudly: "It's a good way to burn it with fire, but the smell is really unbearable. Counsellor General, let's step back a little and get out of the limelight. ”

Zhou Ziheng nodded again and again, turned around and galloped back.

He and Hu Minghui retreated two kilometers away, and the smell of burning faded significantly. The two stopped in the air, each shooting the strange birds and monsters that crossed the line.

The two of them killed for a while, and then they didn't see the strange birds and monsters coming back.

Hu Minghui said: "It seems that this wave of beasts is over. Using incendiary bombs, the effect is good, and I feel a lot easier than the previous wave. But the smell is too great, so let's go back later. ”

Zhou Ziheng nodded and said, "That's right." The smell is so choking. Even I can't stand it, what about the others?"

Although the glow can form a barrier to the body, people always have to breathe, right? It is completely isolated from the exchange of air currents with the outside, and it is okay for a while, but after a long time, it must not be suffocated?

Wang Xiaotian also saw the billowing smoke outside and smelled the scorching smell. This is the air that has been treated by the tower air filtration system.

You can smell the scorching smell in the tower, so you can imagine how smelly it is outside the tower. Master, how can they stand it outside?

Wang Xiaotian suddenly had a flash of inspiration in his mind, and he remembered the gas mask. He immediately asked Athena, "Nana, have you checked the gas masks in stock in the warehouse?"

After a while, Athena's voice rang out: "There are gas masks in the warehouse, in the 3-102 warehouse on the negative seventh floor. Need to open the storeroom door?"

Wang Xiaotian immediately said: "Hurry up and open it." Not only do you open this tower, but you also have to open all the gas mask warehouses in the other towers, and broadcast them to the warehouse to take out the gas masks and distribute them to everyone in the system's area. ”

Athena was silent for a moment, and then according to Wang Xiaotian's instructions, she made a systematic broadcast. Soon, everyone knew about the gas masks and distributed them as quickly as possible.