The 20 seconds after the whistle cannon was exerted, Li Hanlin and the others finally breathed a sigh of relief.

He simply poured all the fragmented grenades, pistol bullets, rifles and machine gun bullets stored in his personal backpack to the ground, allowing Linglong and others to replenish them freely.

After doing this, he shook his swelling and painful arm. Before he could relieve the pain, the whistle cannon was already silent.

With a ding-kick, the conveyor belt of the whistle cannon stopped working. The weapon that killed countless zombies was completely silent.

Li Hanlin dared not rest, so he quickly raised his pistol and started shooting.

Thanks to the arsenal's default ammunition is pistol bullets, which can be produced with standard pistol magazines. Otherwise, Li Hanlin would not have Linglong and others. At critical moments, he could directly absorb it by grabbing a bullet.

But after a while, he found that there were no full pistol magazines on the ground, almost all of them were empty magazines he threw away. You know, because pistol bullets are cheap, he has produced a lot.

Of course, there are still pistols and bullets for now, so you have to press them yourself. God knows that Li Hanlin thought that more than a dozen magazines were enough at that time.

"Fuck, I thought I had prepared enough, but I didn't expect that in order to save some broken supplies, I became silent so soon."

"Commander, you are swearing!"

At this time, Linglong actually had time to joke. After all, the happiest thing now is her. She shot randomly and the dense zombie group completely lost her hit attribute. As long as she didn't shoot into the sky, there would be no saying that she wouldn't hit.

Although it was a bit out of place, Linglong's words successfully made Li Hanlin laugh, and his nervous mood also relaxed a lot.

Although the zombies are gradually approaching, their walls are not vegetarians. They are solid walls of thirty centimeters thick. No matter how strong an ordinary zombie is, they don’t want to knock it down.

As for the three giant dogs, Li Hanlin has been staring at them with radar. Although the zombies are now connected, the small dark red area in the middle can still be distinguished by careful identification.

As long as they don't move, the situation has not gotten worse, unless the dozens of steel bars on the gate can't stop the zombies.

Time passed by minute by minute, and the zombies finally blocked the gate. As a result, Li Hanlin and others completely lost their vision from the outside world.

The machine gun bunker behind the door has already taken shape, and the wall can be upgraded in dozens of seconds.

Therefore, although the gate was squeezed by the zombies, Li Hanlin's heart was always hanging, but he let it go a lot.

But at this moment, the giant dogs moved. But unlike Li Hanlin imagined that they did not jump from the zombie's head, but hit the zombie group in the rear.

Using their own huge strength, they added thrust to the entire zombie group, and the squeezed walls and doors were slightly bent.

At this time, Longlin no longer dared to fire missiles. The zombies had blocked the door. The missile with its own tracking function was likely to explode at the door.

So, don’t let the zombies open the door, but instead let their own people explode.

"You guys say, is there such a possibility that these zombies will not jump at all?" Li Hanlin asked tentatively.

However, no one can give him an accurate answer to this question.

Long Lin put down the sniper rifle in his hand and said, "I'm not in the camera. I've seen them jumping, and even when they walk, they dragged them.

It is very likely that their muscles and ligaments have undergone tremendous changes, so their strength has increased so much, but it has also become extremely bulky."

As the zombie giant dogs continued to hit, terrifying force came from zombies, causing the door made of steel bars to change shape.

Li Hanlin had already opened the system interface, counting the time of the wall upgrading while watching the durability of the door.

The gate with a total of 1,500 points of durability is much higher than that of the infantry chariot, both defense and health, but at this time the gate's durability has dropped by nearly half.

Fortunately, the wall will be upgraded soon. I hope that the upgraded wall can be persisted until the machine gun bunker is laid out.

“3”

"2"

“1”

“Upgrade is completed!”

As Li Hanlin's countdown ended, the 20-meter-long wall suddenly surged.

The wall piers connected to the fence were lifted up to three meters, and the thickness was almost as thick as the columns on the viaduct.

The wall also soared from 1.5 meters before to 2.5 meters. Not only did it increase by one meter high, but it also thickened by twenty centimeters. It was probably not necessarily possible for rockets to penetrate the walls that were 50 centimeters thick.

However, the most eye-catching thing was the door made of steel bars.

At this time, iron blocks had grown on the steel bars, and the door, which was originally full of space, instantly turned into an iron door without any gaps.

Moreover, this is not the kind of large iron door wrapped in iron, but the fully solid iron door as thick as ten centimeters.

But in this way, Li Hanlin was stunned.

The durability of the wall was doubled, and each grid was increased to 3,000 points, but there was no gap. How should his machine gun bunker fight back later? Open the door?

Li Hanlin glanced at the system. Because of the upgrade just now, the 600-point durability gate had dropped and it had been completely restored.

Not only is the durability completely restored, but the defense has also been significantly improved. The zombie squeezed and the durability will not be lost. Only when the impact of the giant dog zombie will one or two points drop.

But every time the giant dog zombie hit, it did not cause much damage to his walls, but it was a big blow to the zombie group. The few closest ones had already hit the mud.

Then, Li Hanlin glanced at the properties of the new wall again, and this was amazing.

[Electric shock wall: 3000 points durable and has electric shock capability.

Electric shock: consumes 5 units of energy each time, triggers high-intensity voltage, and releases high-intensity electric sparks to the peripheral units of the fence for 5 seconds!

Note: After each electric shock, a cooling time will be required, otherwise the electric shock equipment will be damaged.]

This not only changed the name, but also added new features?

It is not the first time that the building has been upgraded. When the convenience store was upgraded to a small supermarket, it added the function of producing daily necessities.

Therefore, Li Hanlin was not surprised with the extra functions.

This is the thing, which consumes too much energy. One grid requires 5 units of energy, and ten grids are 50 units of energy.

Fortunately, although Li Hanlin's supplies were found, he had not spent much on energy.

Besides, a large bottle of energy was opened in the green treasure chest before, with a total of 100 units, so what happened to spend half of it.

As he said that, Li Hanlin pressed the electric shock button heavily.

I saw that under the dim sky, outside the wall that everyone could not see, blue light suddenly shone brightly, and the constantly jumping electric sparks jumped high for 5 seconds.

After 5 seconds, everyone only smelled an extremely foul-stenched scent, with a little indescribable meaty smell.
Chapter completed!