"Lie down!" Xia Yu roared, his eyes were fixed on the hatch that was being pushed open, and at the same time he stepped forward with a lunge, stretched his right hand back, and then threw it forward, and the sharp M9 multi-functional saber was thrown out by Xia Yu in one go.

After Ye Zi heard Xia Yu's shouting, although she didn't know why, but in the tense environment, Xia Yu's shouting was enough to alarm her nerves, so without any hesitation, she threw herself to the ground with her head in her hands, and got out of the way of Xia Yu's throwing knife.

With the sound of "bell", the person who came seemed to be prepared, and when he heard someone shouting, he already understood that the situation was wrong, and when he was about to pull the hatch back, the dagger thrown by Xia Yu smashed directly on the isolation door, fell on the floor and bounced off a few times, without causing harm to the person.

The person hiding behind the isolation door was none other than the sergeant major who had been sent by the first mate to inspect before. In the U.S. military, although senior officers such as the captain and first mate can order any soldier in military rank, if we talk about prestige and convincing the public, the prestige of these senior commanders is actually not as good as a sergeant major who has served the ship for more than ten years, so in the life and work of the ship and the command of operations, the sergeant major is equivalent to a bridge between the officer and the ordinary soldier, and in many cases, the commander of the unit needs the cooperation of the sergeant major to carry out his work.

In the American army, the sergeant major, most of them are veterans who have dedicated almost their lives to the army, as the main sergeant major to express the soldiers' ideas and ideas to the officers, in fact, it is very popular with the soldiers, for which the United States has also set up a special holiday for all the sergeant majors, and because of this, when the soldiers make mistakes, the general punishment is handed over to the sergeant major to complete, so that the soldiers' sense of resistance will not be so strong. At the same time, as a veteran who has served for many years and has a wealth of experience and combat skills, each sergeant major is able to take charge on his own.

Leaving the conning tower, the sergeant major who was sent down kept along the aisle, carefully checking one cabin after another, until he arrived at the cabin where Xia Yu was locked, the sergeant major also saw the guard with a magazine on his face and seemed to be sleeping soundly, and shook his head, because he did not belong to the same unit, the sergeant major did not intend to wake up the guard, so he went directly to the next cabin for inspection, and at this time, the sergeant major found the soldiers who were the first to be killed by Xia Yu in the crew lounge.

The sergeant was shocked, the soldiers on the submarine were actually killed unknowingly, this situation was quite weird, and for the first time, the sergeant major thought of Xia Yu and Ye Zi, who were taken to the submarine before. almost rushed into the warehouse where Xia Yu and Ye Zi were locked up before, and the sergeant major didn't find anything, so he opened the magazine covering the guard's face.

Looking at the lifeless face of the guard, the sergeant major just touched his carotid artery with his hand, and the cold touch from his hand had already told the sergeant major that this guard had been dead for a while, and considering the crew members who had their necks wiped in the crew lounge before, the sergeant major's heart was beating violently, and the other party was now like a ghost, not knowing which corner to hide in waiting to harvest the lives of others.

As soon as he thought of this, the sergeant major immediately became nervous, and his vigilance was suddenly raised to the highest, and the emergency warning switch was on the bulkhead a little further past the crew lounge, but in order to ensure safety, the sergeant major did not dare to rush over directly, he was still very worried that he might not know from which corner someone would rush out waving a dagger, so he just slowly groped his way to the warning switch while checking.

All the way to the alarm switch, the sergeant major who acted lightly did not make any movement, plus Xia Yu was fighting with other sailors at the time, so he did not notice the approach of the sergeant major, and the sergeant major did not hesitate after coming to the position of the alarm switch, and directly slapped the red button, and the red warning light hanging on the bulkhead began to flash, informing that the entire submarine had an unexpected emergency, and then, the sergeant major planned to continue to the next cabin, And his target is the nuclear reactor monitoring room.

Just gently pushed open the hatch, didn't even see anything, and suddenly heard the sergeant major, who didn't know the language at all, was shocked, and directly pulled the hatch back at the moment, successfully avoiding the dagger thrown by Xia Yu in the past, although he was not hurt, but the sound of clanging still scared him out of a cold sweat.

Slowly pushing the hatch open again, the sergeant major did not poke his head out, but just pushed the hatch open to about 45 degrees, ensuring that he would not be attacked by Xia Yu's throwing, and at the same time, he could also rely on the hatch as a defense, so that Xia Yu did not dare to approach and could not close the hatch. This is the most reasonable choice a seasoned sergeant major can make, because even if you don't consider whether the opponent has the ability to be hostile to you, you still have to wait until the Marines come to attack for safety.

The reason why Xia Yu couldn't close the hatch was not because the sergeant major didn't want to, but because he couldn't. Because Xia Yu's current location is exactly where the center of the submarine is located, the nuclear reactor monitoring room, the control room and the electromechanical room.

The design of the nuclear submarine, because considering the possibility of accidents such as nuclear leakage, for the sake of safety, this compartment is specially reinforced, not only to strengthen the protection capacity, but also the protection system is also independent, if necessary, this compartment can be completely isolated from other compartments, even if you want to open, except for the highest level of authorization of the captain himself, it is impossible for others to open the closed hatch.

This is also the reason why Xia Yu changed the engine room of the control wheel almost immediately after getting the maintenance atlas, because the firm protection of this compartment is undoubtedly perfect for the safety of the leaves, and more importantly, Xia Yutong guò The picture album learned that although the monitoring room cannot directly interfere with the work of the nuclear reactor, the power distribution facilities in the electromechanical room can allow Xia Yu to manipulate the submarine, although it can only have some slight impact on the operation in the control tower. However, it is possible to manually hinder the control of the submarine.

Xia Yu believes that this submarine should not leave Chinese waters at this time, as long as it can hinder the normal operation of this submarine, there will be a chance that this submarine will be discovered by the naval ships on his side.

However, once the operation of the submarine is mechanically intervened, the submarine without the relevant change plan will automatically alarm, and if there are other people in the monitoring room at that time, it is likely to cause unnecessary trouble. Considering the reaction time of the submarine officers and soldiers, Xia Yu should have left time to lock the hatch after causing the alarm, so he chose the combat method that would alarm everyone and killed the soldiers in the three monitoring rooms in one go.

And then the two people who appeared from another cabin could only be regarded as an accident, and Xia Yu solved it very smoothly. What really got tricky was the person who reacted so quickly that Xia Yu was surprised, and was hiding behind the hatch over there at the moment, ready to attack at any time. If he can't get rid of that person as much as possible, once the other party's support arrives, Xia Yu can only be captured or even sit still.