The slaughter of the train was not hindered in any way because the corpses of the zombies gathered more and more, and the repeated crushing made the southern half of the entire railway bridge a veritable meat grinder, whether it was a corpse or a living zombie, as long as it was run over by the train into the bottom of the car, it was inevitable that the legs and heads would be crushed or the whole body would be crushed in half from the crotch, and the speed of blood flow could not even be satisfied with the drainage, and even once it had to spread to the north end.

Occasionally, a few evolutionary zombies that happen to be able to jump onto the train will not end well, if they come through the locomotive, then thank God will let them come, but as soon as they show up at the north end of the railway bridge, then they will immediately be beaten into a sieve, and in the face of infantry chariots and excavators, evolutionary zombies have no chance.

This is mainly due to the overcrowding of zombies, the zombies in front can't pass, but the zombies in the back are desperately rushing forward, and some evolutionary zombies are even squeezed in the middle and can only move forward with the flow of zombies, but they can't pull away at all, which greatly reduces the combat effectiveness of zombies, making them cannon fodder for one after another.

This night, the safety zone has been red-eyed, a night in the state of constantly starting the brakes of the train, halfway when there is no fuel, the personnel who have already carried the fuel ready to fill have been ready, open the fuel tank and quickly refuel, a locomotive filled with nearly 9,000 liters of fuel, this time full, has been held until dawn.

At dawn, Lao Cheng was already a little tired, Liu Mu took advantage of Lao Cheng to drive the train in again when he climbed up, under Lao Cheng's professor, after understanding the way the train moved forward and backward and braked, he took over Lao Cheng's post, Lao Cheng was not at ease, and kept watching by the side for an hour or two, only to make sure that Liu Mu was already familiar with the road, so he squinted in the co-pilot's position for a while to replenish his strength.

It was also at this time that people really saw the scale of this zombie group, and it is not an exaggeration to describe it as boundless, but because the defense of the railway bridge has always been strong, everyone saw the terrifying scene on the other side, but it was not affected.

Xie Tian stood at the halfway point of the chimney all night, as far as his current physical condition is concerned, there is no problem at all if he stays up for a few days and nights in a row, after dawn, the defenders are asked to change shifts to defend, and the others immediately start to rest, the west has always been Xie Tian's biggest worry, the soldiers must be allowed to rest, so that once there is any situation in the west, everyone can enter the battle in the fastest time.

Breakfast was made in the cafeteria, and some of the survivors began to deliver the food to the bridge, while the other survivors hurriedly finished their dinner and immediately threw themselves into their work, thankfully letting Eric keep an eye on the situation in the west, and get down the chimney to check on the bridge in person.

The number of zombies on the other side is still too large, Xie Tian thought with a sad face whether there can be a way to improve the ability to kill, at this time, the engineer said to Xie Tian: "Sir, if we can add a fuel tanker truck, and then fix the oil pump on the top of the tanker truck and spray gasoline to the zombie group, this can have a large-scale killing effect, but the problem of oil pump power is not easy to solve." ”

"Electricity is easy to solve, and a small diesel generator can be attached, but how to control it." Xie Tian said with some difficulty: "The fuel tanker is too dangerous, the roof of the car can't be welded with a protective net, we can't let the fuel spray all the way from the inside of the safety zone to the zombies." ”

Immediately, Xie Tian suddenly remembered Li Yang, this kid has a high talent for electronics, or he can solve this problem.

Xie Tian hurriedly called Li Yang over with a walkie-talkie, and now that the soldiers are coming to the city, it is meaningless to monitor or not.

After Li Yang came, he heard Xie Tianyi say, hesitated for a while, and said: "This is easy to solve, if there is a ready-made remote control component, it is best to be the power supply component of the remote control car, as long as the power supply component is installed on the power line of the oil pump, you can control the power switch from a distance, and when the fuel tanker drives into the zombie group, turn on the switch to supply power to the oil pump, so that it will spray a large amount of fuel, and then when the train retreats, you can use a sniper rifle to ignite gasoline at a distance." ”

Xie Tian was overjoyed and said, "You go to the chartered car now to find it, I don't believe that there is no remote control toy or anything in the express delivery of the whole train." ”

Li Yang's scalp was numb, and he said, "I'll try it if I'm looking for a needle in a haystack." ”

The railroad bridge held out again for two hours, and by ten o'clock in the morning, Eric's voice came: "Thank God, there's movement in the west!" ”

Xie Tian hurriedly climbed up to the general control building, and what he feared most still happened.

The entire western horizon is black, and the width stretches for dozens of kilometers, as for how long, Xie Tian is difficult to see at the moment, the distance is about thirty kilometers or more, but at most, it will be in the afternoon, and it will be there.

The zombies in the south are just a small test for the defense of the security zone, and the west is the real test, so many zombies will be close to the outside of the fence at that time, enough to drain the water around the entire security zone, thank Tian did not dare to slack off, and immediately ordered: "The personnel in charge of the oil pipeline immediately check the oil pipeline under each wall and the fuel reserves next to it, to ensure that the oil storage tank is unblocked, and the other survivors will distribute the completed incendiary bombs to each shooting tower, pay attention to safety in the transportation project, do not have any accidents, Yu Fei, You distribute the grenades in the ammunition depot, and then send someone to the various shooting towers to have all the ammunition carried to the yard and distribute it in a mobile manner. ”

All the survivors got busy, and began to do a good job of rationing ammunition for each shooting tower, Xie Tian stood on the general control building, and looked at the west-facing terrain again, there is only one road in the west that is relatively smooth, and there are many houses and factory buildings on both sides of the road, I believe that zombies will gather on the road in large numbers at that time, and they have placed two tankers with a reserve of thirty tons of gasoline on the west-facing road, as well as a few large oil drums filled with gasoline, no matter how many zombies there are, give them a pot to drink first!

The zombies in the west are still approaching, Li Yang finally made a discovery, he led a few people to find a high-end model airplane in the mountain of express packages, and took off the remote control system and remote control inside, cut one of the power cords of the largest gasoline pump, and then installed the remote control receiving and execution parts in the middle of the power line, after trying a few times, the remote control system responded well, as long as Li Yang remote control gave a power transmission instruction, the execution parts will immediately be together with the power supply, and then the gasoline pump will operate.

As for how the gasoline pump can be sprayed on both sides of the tanker truck at the same time and spray farther, the engineer came up with the idea of changing the oil outlet pipe of the fuel pump into two links together, one left and one right, each of which is cut short to less than one meter long, and then hoisted up with iron wire at an angle of 30 degrees, and then the two final ports of oil delivery are flattened, so that the passing capacity is reduced by half, so that high-pressure gasoline can be sprayed on both sides of the tanker truck at the same time, and because the port is flat, the spraying range is larger.

While there was still time, Lao Cheng got off the train and began to use another locomotive to pick out a tank car full of gasoline in the marshalling yard alone, and then linked five rows of chartered cars, and then took advantage of Liu Mu to drive the train back to the inside of the safety zone again, Lao Cheng couldn't take a break, and immediately disassembled the three wagons and trains that were still on the bridge deck, and then drove the train himself, adding the tanker car with generators and five chartered cars.

In this way, the length of the train increased by nearly 100 meters again, and the tanker car was in the penultimate section, and then, the train retreated again, this time, because the train was a little longer, the distance that could exit the south end of the railway bridge was longer, when the tanker car just came out of the south end of the railway bridge, Li Yang immediately controlled the oil pump through the remote control to supply power, almost in a moment, everyone saw that the oil pump at the top of the tanker car sprayed a large amount of fuel high, just like the feeling of garden sprinkler irrigation, but the force was much greater than that, The spray was nearly ten meters away, and the train retreated more than two hundred meters, and this time the spraying range was very large.

When I came back, the spraying action continued again! As soon as the tanker truck entered the railway bridge, the spraying immediately stopped, and immediately Xie Tian said to Eric: "Shoot at the area where the fuel is sprayed on both sides!" ”

Eric was much more experienced than Shetian, and the bullet came out of the muzzle of the gun, with great speed and the temperature of the explosion of the gunpowder, and after the high temperature caused by the friction with the wind, it shot at all the places where it could splash sparks, such as stones and metal.

Suddenly, a raging fire ignited ten meters away on both sides of the railway, the fire stretched a large area, and there were two seas of fire at a glance, the effect of this killing was amazing, most of the zombies were wearing tattered clothes, plus they had been drenched in gasoline from head to toe, and ignited in an instant, the zombies contaminated with gasoline almost became a fire man on the spot, and because the zombies were too dense, even if there were no zombies contaminated with gasoline around, they could not escape the spread of the fire at all, and the temperature around them rose instantly, Many zombies have not encountered the fire, but have been roasted to human dry.

Xie Tian couldn't help but praise: "Li Yang, well done!" The wisdom of working people is really endless, and they can make such perverted things by DIY themselves! Each tanker truck is sixty tons, and what we have is fuel, even burning and pressurizing, I want to see how much cannon fodder they fill in! This stuff really works! When the zombies in the west approach, drag the tanker truck to the westernmost railroad track, just enough to cover the road on the west side! ”

The raging fire burned for less than twenty minutes before it began to extinguish, because the fuel was sprayed too evenly, so the burning speed was very fast, but Xie Tian did not immediately let Li Yang carry out the second spraying, the two large zombies that were burned to death still had sporadic sparks on their bodies, and the other zombies have not yet made up for the position, and after the other zombies fill the position, the second fire attack will be carried out.

The zombies in the west were getting closer and closer, like locusts, until in the afternoon, when Eric said in a deep tone, "Thank God, the zombies are approaching our first tanker. ”

"How far is it?" Xie Tian grabbed the walkie-talkie and asked.

"Visual up to two kilometers."

Xie Tian immediately ran back to the roof of the general control building again, and sure enough, the zombies were only three or four kilometers away from the safety zone, and the farthest fuel tanker truck was about 1,700 meters away from the safety zone, this was because Eric was afraid that if it was farther, Barrett's power was not enough to detonate the fuel tanker, and the second tanker truck was only seven hundred meters away from the safety zone.

"Attention all combatants, Junko, you arrange for eighty percent of the remaining forces to be concentrated on the west wall and the north wall, and the rest are all on the east wall, the reservists are ready and ready to be dispatched at any time, all the machine gunners in charge of anti-aircraft machine guns pay attention, leave your bullets to the evolutionary zombies who may pass over the wall, do not fire at ordinary zombies, in addition, all the personnel responsible for filling the outer wall ditch with fuel are immediately in place and ready at any time."

This time it was really the general mobilization of the whole operation, the arduous defensive battle was just about to begin, Xie Tian watched from the top of the building that the personnel had begun to take their places, and at this time, Eric blurted out: "The zombies have arrived at the first tanker!" ”

Xie Tian looked up and saw that the front end of the zombie army was already on par with the first tanker, and then, soon, the tanker was drowned in the zombie group, Xie Tian said: "Eric, aim at the tanker, I will shoot immediately if I give the order!" Be sure to aim and make sure you hit it with a blow! Barrett's bullets, we can't afford to waste them! ”

"No problem!" Eric immediately adjusted his breathing, the muzzle of the gun has been aimed at the side of the tanker truck in the center of the upper position, this shot down, the tank wall of the tanker truck can not withstand no matter what, the moment the bullet penetrates the steel, it will form a spark of extremely high temperature and metal friction, and there is no problem with a blow that will explode.

Xie Tian has been waiting, waiting for the front end of the zombie army to exceed the tanker truck about 400 meters to 500 meters, so that the zombies will sandwich the tanker truck in the middle, and the explosion of the tanker truck can exert the maximum effect, and time passes by second, until Xie Tian suddenly yells: "Fire!" ”

"Bang!" Eric's quality did not need to be doubted at all, almost at the moment of Xie Tian's fall, the bullet had already gushed out from the muzzle, and it passed in the blink of an eye in less than two seconds, and there was an explosion, and the air wave set off made the tent on the roof of the building whirring, if it was not firmly installed, it was very likely to be overturned.

The explosion power of the entire tanker truck was too great, gushing out a large amount of burning gasoline, the whole car flew up, split in the air, and smashed into the zombies in various positions, and in an instant, with the tanker truck as the center, a radius of more than 500 meters was completely plunged into a red flame.

A large number of zombies were burned into charred corpses, the zombies behind just a little pause, then immediately replenished up and continued to move forward, and even some zombies still have flames on their bodies, seven hundred meters away, is a crossroads, zombies here will shrink the width, gradually pass, the explosion here, can delay the zombie army behind for a period of time, but there is no need to delay or not, because now everyone is ready to fight, once the zombies approach, they will immediately attack.

(To be continued)