Left Tooth retreated, without any hesitation.

He Hao, who learned about it, ordered Puyu to lead the team to clean up the corpse at the same time, and at the same time, divide people to build a defense line, after all, there are automatic production lines and super engineering vehicles, and it is not difficult to quickly build some simple facilities.

Because He Hao knew that there were light knights in Tuhe City, he guessed that the development route of Plague City was not technology, but biology. So the defense facilities also have the original structure.

One of them: piercing walls and traps.

The barbed walls are made of rare alloy welding. X-shaped structure with 5 alloy spears stabbed outward from the middle. Rack height 350. The spines are 500 long, and they are fanned out at an angle of 150 degrees, at an angle of 30 degrees to the ground. It is then assembled with a counterweight base buried deep underground.

This kind of defense is useless in modern warfare, and the effect against light knights is unknown, but it doesn't hurt to be prepared.

The barbed walls are mass-produced by the automatic production line, and the personnel are responsible for the embedding and hoisting. 400 meters can be laid in 1 day. Although the efficiency is very slow, if you use Sene as a stronghold to defend it, it can be encircled in a few months.

He Hao figured it out, the population of the Brilliant Outpost had been drastically reduced, and the area that could be used was very limited. With its fanfare deployment, so that it is full of loopholes. It is better to strictly guard every inch of land and avoid being sparse in a hundred denses.

There is also a 5-meter-deep trench behind the thorn wall. The length of the ditch is 15 meters. There is a 10-meter-high reverse slope. Light riders who have fallen into a ditch must first climb to the top of the reverse slope if they want to climb out quickly; Caper. In this way, there will be a second exposure due to the inverted 'again' shaped line of action. Give the garrison of the Brilliant Outpost one more positional shot - if the Light Knight can jump straight over the spike walls and ditches, there is no way to do it. However, He Hao didn't think that the manned fast slasher could jump over a height of 3.5 meters while maintaining a distance of 5 meters in the front and 15 meters in the back......

Second: castle-like ramparts.

The texture of the barrier is relatively simple, and the main body is steel. The surface is reinforced with a layer of rare metal 20 thick. It has the feel of a multi-layer board. The main purpose is to give full play to the allocation of resources, and use the limited resources obtained by interstellar conquest in combination with mining resources to maximize the cost-effectiveness of the defense effect.

The height of the rampart is 20 meters, and it is close to 7 floors. The surface should be as seamless as possible, and the smooth wall will prevent the light rider from climbing.

The top of the barrier is provided with a concave and convex battlement. The dock space is 50×50. While protecting the shooter as much as possible, it provides maximum visibility. A 200-long steel upside guard is reversed at the top to effectively block falling arrows.

The layout of the building on the inside of the rampart is simple scaffolding. Widening and reinforcement, with the use of soft ladders. Only 12 points are set up with high and steep stairs to facilitate the evacuation and transfer of large troops or joint assembly. As for the ammunition refill, it is delivered using simple slipways and cables. For materials, spreaders are far faster than manual transportation; Convenient.

The construction of the barrier was slow, and the exact progress is difficult to estimate, even with the help of three super engineering vehicles, it would take months to complete.

There is a 300-meter buffer zone between the ramparts and the barbed walls. It is enough to ensure the effective range of the big champion while delaying the enemy's attack speed as much as possible.

It's also unknown whether the Light Knight will be able to send arrows through the buffer belt with a bony bow - after all, xenohumans have incredible wrist strength, and the Ultimate Destroyer's rib toughness is also high......

While ensuring defensiveness, it is also necessary to ensure offensiveness. As a result, there is only one high gate on the rampart to provide access. There are 4 Thorn Walls - to ensure the mobility of the 1st Line and the protection of the 2nd Line. Although people need to drive around to travel, it is also a helpless move.

Overall, it's about building a line of defense as quickly and as well as possible.

Yu Feng and Puyu were able to ensure the development of the economy and urban defense. He Hao planned to explore Tuhe City with Xiaobei again to obtain the intention of the cruel warlord - knowing that the other side could not be defeated.

So He Hao; Becky; The wasp and the bottle cap set off again with a bone shield......

……

Because the inscription attracted all the zombies in the surrounding area, there was no danger along the way. The desolate night and the endless snowfields give you time to watch quietly......

"Are we on the wrong track?" Xiaobei, who was holding hot tea, muttered after looking at the unfamiliar low buildings that gradually appeared around her.

"You can't be wrong." He Hao, who drove the car himself, responded casually.

"But this is not the direction of Tuhe City! You're heading north! Wasp said, pointing to the Celestial Pivot Star in the vast starry sky.

"That's right." He Hao affirmed.

The bottle cap suddenly realized something, and said with his head held high, "Go to Ghost Town......

He Hao was silent, and replied by acquiescence.

Ghost Town, as the mercenary said before, is a subsidiary town of Tuhe City. It seems to be quite backward before the end of the world, there are no large buildings, almost all small high-rise or independent low-rise buildings.

He Hao looked left and right from block to block, searching for data in his field of vision, but found no living person.

"Did you evacuate in only 3 days......" He Hao muttered to himself in surprise, lamenting the speed of Mu Chun and Mingjun's movements. Since it has become a borderless land, He Hao plans to settle down here to rest and enter Tuhe City tomorrow......

As a result, when the bonfire for supper was just lit in a vacated supermarket, Xiaobei and the others faintly heard a strange sound, and the sound was 'dangdang'. In the quiet of midnight, it's easy to make out – the sound of the clash between the irons.

"There is a situation...... "Xiaobei, who is holding the wooden plank, warns He Hao. And the latter has long been heard. He stepped on the campfire, booed her, and then surveyed her surroundings. The empty building is still deserted......

Suddenly, He Hao realized what he was wrong about - humans in the last days do not necessarily live only on the ground, and it is very likely that they will also live underground. It's like building a brilliant base in the first place.

So He Hao looked at the foot and surveyed! Sure enough, he found a wide channel of aqueduct at a depth of 10 meters!

In order to avoid the danger of waterlogging, the waterway system of a large number of southern towns has been renovated in the southern cities and towns - as huge as Quang Binh City!

Inside this aqueduct is a group of half-grown children armed with homemade spears and earthen guns. One of them, a 14-year-old tall and thin boy, kept chiseling heating pipes with scrap iron......

"When! While! While! So the metal slam ran down the pipe and into the radiator on the surface......

"What do you see?" Xiaobei felt that He Hao must have discovered something, so he asked hurriedly.

"Huge and wide underground waterways; a group of children; a few locusts attracted by the sound; They are hunting......" He Hao explained what he saw succinctly. But Xiaobei was confused and grinned, and couldn't guess why. The same is true of the two siblings......

After a while, He Hao raised his head and said to everyone: "The people of Fierce Ghost Town have not withdrawn, they have been living underground. ”

"Are you sure?" Becky was a little incredulous. I don't think anyone can survive more than a decade in the sewers. But she didn't know that there was a sub-complete ecosystem here—

Multiple water sources: coarse filtration; fine filtration; Distillation can provide domestic water and drinking water.

Weak alkaline wet soil: With the light source, you can easily grow crops such as potatoes and sweet potatoes.

Air compressors and generators: As long as the fuel is obtained from the surface, the power and power can be guaranteed.

Creatures such as locust swarms and cockroaches: not only can they destroy a small number of zombies, but they can also provide meat. Cockroaches can provide high protein, and although they can be very disgusting to eat, they are the last choice for the weak in Ghost Town......

When He Hao saw the children, he knew that there were still scattered people in this place, so he motioned for everyone to scatter and find the entrance to the underground waterway......

……