When Weiss was the last to return to the sewer exit, the large number of explosions on the surface had ended. It can be imagined that the smoke flying everywhere, the corpses and the mottled bullet marks made the block return to the tragic battlefield.

The essence of urban guerrilla warfare is to come and go without a trace, making the enemy unable to defend. From Weiss' first shot to the last one he entered the sewer, the whole process was less than ten minutes, and the efficiency was unknown. The attackers quickly withdrew from the battle, but it was not a true seclusion. They needed to evacuate along the sewer and return from the combat zone to the garrison area that was quite far away. The Normans would not ignore this. They could use various means, including follow-up pursuit, interception everywhere, etc. Considering the dangers of the return, Weiss and the non-commissioned officers selected multiple sewer switches and arranged explosives in advance to prepare for emergencies. Of course, this

Although the technology of electric shock detonating explosives has appeared in the era, it is not very popular. Before the Battle of Aocheng, the detonators distributed were still conventional fuses. Soldiers generally control the timing of the explosives' detonation by the length of the fuse. In other words, to make these preset explosion points work, they must be controlled by the soldiers of this side at close range, which lacks safety and restrains manpower. In order to solve these problems, Weiss and his soldiers adapted to local conditions and flexibly used them, using thin ropes and pineapple bombs, white phosphorus and detonators to create simple automatic fuses, which greatly increased the number of warning points and blocking points.

After watching the sewer for a while, Weiss signaled the defenders to set up automatic fuses with thin ropes and pineapple bombs. As long as the enemy passes here, they will detonate the explosives hidden in the corner. However, the sewer system in Aocheng is well connected. Even if the entrance and exit are blown up, Norman soldiers can directly drill the drainage outlet on the street, use ropes to lay down water wells, or find repair channels near the neighborhood. In this regard, urban guerrillas cannot stop them.

The large army had already withdrawn first, with the support team as the rear guard, and Weiss, there were 9 people. They did not need to carry the combat supplies they obtained tonight, but they also carried a lot of things: rifles, bullets, a considerable number of pineapple bullets and additional explosive packs. The group followed the route they were surveyed and walked about four or five miles. When they were almost at a sewer fork, they suddenly heard rapid footsteps coming from another direction.

Weis quickly signaled his companions to stop moving forward. He came to the fork alone, lowered his body, and quietly looked at it. Although he did not open his special vision, he could still make a judgment at the first time through the shadows of the other party and the shaking flashlight: it was a Norman!

Seeing that the opponent was a large number of people and was coming in full force, Weiss put down his rifle without hesitation, took out a pineapple with both hands, pulled the ring, threw it out, picked up the rifle, pressed against the wall, and shouted: "Be careful of the explosion!"

As he finished speaking, two deafening explosions came from the fork. Immediately afterwards, a wave of air mixed with mold, sour and fishy smell came to his face. Weiss didn't care about the discomfort of his senses and organs to respond to this breath, and roared "Pineapple, attack in groups", and then flashed out half of his body to observe the situation at the fork. In his sight, the Normans died, the wounded, and the non-dead or injured were all lying on the maintenance aisles on both sides of the sewer.

The soldiers behind him had already come up, and Weiss issued an order: "Two in each group, the first group throws!"

Two federal soldiers came out and each threw a thunder at the Normans. The Norman soldiers on the opposite side shot and shot, and the crisp gunshots were amplified in this closed passage, allowing Weiss to confirm their identity.

With a certain combat experience, the federal soldiers already knew how to avoid being shot by enemy guns when thrust. In addition, the dark environment of the sewer greatly reduced the shooting hit rate of Norman soldiers, and the two groups of thunder were thrown without any pressure. The series of explosions alone had already shocked the Normans, not to mention the killing caused by the shrapnel flying everywhere. When the third group of soldiers threw the thunder, the gunshots at the fork junction were scattered, indicating that the group of Normans had been beaten to no resistance.

Weiss signaled the soldiers to pause their attack, looked at it, and shouted in Norman: "Surrender, or die!"

The Normans did not respond, but instead gave a reply with a pineapple.

Because the stance and force of the bomb dropped were not sure, the pineapple exploded before reaching the fork. Weiss and his companions were basically unscathed except for the pain in their eardrums. Since the surviving Norman soldiers chose to continue fighting, they were not polite and threw two more waves of mines as if they were not rich. During the repeated explosions, the quality of the engineering of the Aocheng sewer withstood the test, and neither large-scale wall collapsed nor collapsed.

The power of the explosion dissipated, and the sewer was filled with thick smoke. Even if the flashlight was used, the distance within the naked eye was no more than ten feet. Weiss leaned his head and narrowed his eyes. In his special field of vision, dozens of Normans were not one in ten. The lucky few who lived, thought that the smoke blocked the opponent's sight, so he helped each other retreat. As for the enemy, Weiss was not ruthless and walked directly to the fork with his rifle. Within ten seconds, he fired three guns in a row, shooting three Norman soldiers trying to withdraw. Then, he growled "Follow me" and led the soldiers through the fork. Although there was no trace of pursuers behind him, they had been delayed here for several minutes. In addition, the big noise caused by the fierce firefighting, it is believed that many Norman soldiers were rushing here. If they don't want to be entangled by the enemy, the best way is to evacuate quickly.

Under Weis' leadership, the guard team rushed to the scene and soon caught up with the large army. On the one hand, they brought the combat materials they obtained that night, and on the other hand, they heard one after another explosion from behind, worried that their commander and the guard team would need support, so they consciously slowed down and made corresponding preparations.

After meeting with the main force, Weiss quickly adjusted the manpower distribution, allowing the soldiers who were originally the guard squad to take over the heavy objects, and allowed the soldiers who had walked a long distance to take charge of the rear. In order to gain enough time for the main force to retreat, he selected a blocking point suitable for blasting the blocking passage on the original route, and personally led the guard squad to guard here.

After waiting for about a quarter of an hour, the Normans pursuers appeared.

Weiss made the soldiers patiently and crouched in the fork in the enemy's out of sight. After the Norman soldiers approached, they suddenly threw a large wave of mines at them, followed by machine gun strafing and rifles. They almost finished the enemy's vanguard and decisively detonated the explosives arranged at the fork.

These explosives are equivalent to two boxes of pineapple bombs, placed near the top of the sewer, and will collapse every time they explode, which is very successful.

Blocking the most direct pursuit route of the Norman army, Weiss quickly rushed to the next blocking point with the defenders. When they arrived there, they found another Norman army coming towards them. The more brave the Federal Army soldiers, who became more and more brave, were familiar with the underground world of Aocheng, and led by Weiss, using pineapple bullets and machine gun fire to the point of fire. They washed over like a surge of floods, beating the Normans who had always been good at tactical cooperation. Then, without waiting for the enemy in front of them to reorganize their troops, they took the initiative to detonate the previously preset explosives, blocking the enemy's way.

He led the rear guards to fight three consecutive victories, killing the enemy in large numbers, and the losses on his own were minimal. Weiss was not satisfied. According to the original plan, he should have led the rear guards to return to the garrison area in the northeast of the city from the combat area in the northwest of the city, and use a long-distance marching to get rid of the enemy's tracking. However, after the just-matched combat contact, he found that the Norman army was very powerful and would not stop until he eliminated the attacker. In order to lead the enemy's sight to the wrong direction, he ordered the soldiers to use pineapple bullets and strings to create some simple trigger bombs, and then carried out a long-distance marching continuously, sneaking directly from the combat area in the northwest of the city to the center of the city.

After being beaten by the federal army for two consecutive nights, the commanders of the Norman army would certainly not choose an inefficient way of treating the head and foot pain. In the sewer below the central city, the Norman army also entered the army to search. Before Weiss and his friends arrived, the Normans had already had a fire with the lurkers in the underground world. From time to time, the sound of gunfire from afar, the burning smell of the air, and the occasional corpses were all proof of the exchange of fire between the two sides.

At a large fork where multiple trunk lines and branch lines intersected, Weiss and his soldiers stopped and confirmed that there was no enemy activity nearby. They quickly started construction and used pineapple bombs and explosive packs to create explosion traps. Soon, a team of Norman soldiers came from one of the forks. When they passed the forks, the traps set up by the Federal soldiers were launched, and a series of explosions killed half of the Norman soldiers on the spot. After the explosion, the Federal soldiers who had already entered the state poured out the fire of gunfire from the darkness. The only machine gun they brought to wipe out the entire belt of ammunition, and the riflesmen fired at least two magazines, plus one or two pineapple bombs each. Under such a fire density, the Norman troops of more than 20 people were devastated in just a few minutes.
Chapter completed!