The two sides were separated by 100 meters, but already a hundred specially trained grenades began to throw grenades at the tank group.

These soldiers have all practiced the exercises, and in a short time, they can completely throw a one-pound grenade a hundred meters away. It's a pity that the explosive power of the grenade is still a little worse in the end, but from the beginning, it was not intended to blow up those tanks.

Hundreds of grenades exploded, producing thick gunsmoke, which made the lookouts inside the tank unable to see the front at all, let alone Sun Ce and Tai Shici who were killing them.

The white jade unicorn was indeed a slight man-made beast in the world, and in just a few seconds, it had already taken Sun Ce to the center of the tank group. And Sun Ce had already mobilized his spiritual power, just waiting to give them a blow.

But he didn't want to, and before he could release his special move, a large number of arrows were shot at him. It turned out that these tanks had always operated close to the city walls, which meant that the defenders on the walls were ready to support them.

More than fifty strong crossbowmen began to shoot, carving strong crossbows that pierced through the Burst Spiritual Script, as well as crossbow arrows that pierced the Spiritual Script, which not only increased the killing range to more than 600 meters, but also greatly increased the penetration.

Even if this kind of strong crossbow is in Yang Feng's hands, there are only these fifty pairs, which are used to kill the opponent's generals from a distance, but the real use is to kill the enemy's innate generals at close range!

After receiving such fifty rounds of this armor-piercing crossbow arrow at close range, even Sun Ce would not feel good. Fortunately, his instinct as a warrior made him quickly swing the spear in his hand and protect himself from the air, but even then it was not easy to shoot down those crossbow arrows.

Feeling the tingling pain coming from the tiger's mouth, Sun Ce also had to admit that Fang Yun's scientific research ability was indeed very powerful. But that doesn't mean they're going to throw in the towel.

He tried his best to attract the attention of the defenders. Tai Shi Ci has brazenly launched the nirvana 'White Rainbow Breaking Wave'. The area of effect of this special move is the front and back sides, so it can be said that it affects all enemies in a range.

Suddenly blasted out, directly throwing these ten armored vehicles out.

It's just that to his surprise, Lu Buna directly tore these tanks to pieces in the past, but why did he only have to fly them out when he came here? And most importantly, after at least eight tanks landed. It still works!

This is the product of the combination of Lingwen and modern metallurgical technology, these armored vehicles are welded by pure steel, and during this time, the welding, forging and rolling processes on Fang Yun's side are constantly innovating. There is a relationship of guidance, and there is also a relationship where the spiritual motivation is further upgraded and the motivation is improved.

The all-steel manufacturing makes the body stronger, and even the body is equipped with a spirit gathering array and a solidified spirit text. Under the combined effect of the two means, even the innate early nirvana may not be able to destroy them. Only two of them were overturned and temporarily incapacitated.

"Shoot!" Liu Wei, as the commander, immediately gave the order to shoot.

Immediately, the machine guns on the remaining eight tanks quickly reversed direction. Shoot at Tai Shi Ci and Sun Ce. These machine guns are similar in structure to the repeating crossbows, but the bolts have been replaced with copper-plated cones. In terms of penetration, it is similar to an ordinary crossbow bolt, and it can completely harvest the lives of ordinary soldiers within fifty meters.

The most important point is that this machine gun can also achieve the effect of continuous fire, and the speed is faster than that of the mechanism repeating crossbow!

"Damn, it's much faster than the fire rate we designed...... Sun Ce and Tai Shici were suddenly covered by a large number of buts, even if they had True Qi armor, they wouldn't be comfortable.

At the same time, I also had to admire Fang Yun's scientific research strength. This weapon is a bit like the firecracker they developed, but it is significantly stronger than their own firecracker in terms of design speed and range!

"Shelling!" Sun Yi shouted at the moment. The artillery instantly covered the entire area where the tank was located.

Unlike grenades, artillery has increased its destructive power several times, and even tanks can't withstand too many bombardments. Especially in the case of simultaneous bombardment of fifty shells, these ten tanks were destroyed in an instant. The key is not the armor, but the power system!

"Abandon the car and go!" Liu Wei had to announce that he had abandoned the car. More than twenty tank drivers quickly broke away and fled in the direction of the city wall, where rope ladders also fell and awaited their return.

"Don't want to go!" How could Sun Ce and Tai Shi Ci allow them to go back unscathed?

"Shoot!" Yang Feng shouted, and the strong crossbowmen quickly shot at the two of them.

The bolts burst through the air. Sun Ce and Tai Shi Ci had to resist desperately, but even so, Tai Shi Ci's abdomen was also solidly hit by an arrow, and the arrow directly broke through the body and shot through.

"Go back to treatment immediately, just leave it to me here!" Sun Ce immediately blocked in front of him and said to him.

"It's hard to ......," Tai Shi Ci said apologetically, and then quickly moved towards the main formation.

"Shelling!" Sun Yi gave the order for artillery bombardment again, and at the same time couldn't help but be a little anxious, this time they only brought 300 shells in order to move quickly. In the blink of an eye, it has been launched three times, and there are still three more that can be launched.

But whether he can blast the other party's city gate open in these four shellings, he has no confidence now. It's just that the other party's city walls and gates have obviously been reinforced in some special way.

Obviously, according to the intelligence, the other party has not rebuilt the city wall, in other words, it is still a city wall made of wall bricks and triple soil tamping, why is there such a strong defense?

The cannonballs landed on the gates and walls, and as he expected, they did not cause much damage to the walls and gates. No, strictly speaking, it had done damage, and Sun Yi could see through some subtle changes in the city walls and gates.

His idea was not wrong, the massive use of aura weapons did make the aura shield on the side of the city wall and gate insufficient. The shield, which could have supported three shells, is now unsustainable with just two shells. If the enemy shells again, then it will inevitably actually attack the city walls and gates.

The tanks were no longer usable, but fortunately, Liu Wei activated the self-detonation system after leaving, so that no matter what the result was, these tanks would not fall into the hands of the enemy. Otherwise, it would be bad if the other party analyzed the spiritual text technology and power technology inside, and it would be bad if they studied it in the future.

When the other party fights with a smart weapon, then he, Yang Feng, will also become a sinner.

I thought that with today's materials, it would be okay to hold on for three days, but now it seems that one day seems to be a problem. The power of the artillery has obviously increased again, and I don't know how hard they have worked on firearms technology during this time. And in the absence of sufficient weapons and support, it seems that the own army can only be replenished with momentum?

It's not that he doesn't have hole cards, the talent 'Shura' is his biggest hole card, which can help him enter the late congenital stage in an instant, even if it is Sun Ce or Tai Shici, he should be able to kill it in an instant.

It's just that this characteristic is only a quarter of an hour, and there is a period of weakness of about half a month after that. That is, he has entered the innate realm, otherwise he will not be able to recover at all in a month.

"The key should be those artillery...... Can you see how many shells the other side still has? Yang Feng looked at the lookout.

"It has been checked that the remaining ammunition can still support the other side to carry out three shells." The lookout hand lowered the binoculars and reported.

"Three times...... Hehe, if the other side concentrates its firepower to carry out artillery bombardment, it is estimated that the gate can be destroyed in one time. There are two shelling left, and I don't know where the other side will aim for it! Yang Feng was not optimistic, the power of the artillery was still too great.

"Shelling!" Sun Yi gave the order for shelling again, but the overheating of the copper pipe was also a big problem. Three consecutive shelling in a very short period of time, and the lack of sufficient means of cooling, of course, the real reason was the unqualified manufacturing process and metal smelting process, which directly caused the mortar to explode.

The shells exploded inside the position, implicating other artillery pieces as well. In peacetime, due to the lack of supplies, they often had a gap of time when they trained, and the gun barrel had enough time to cool down. Even when attacking a city, a single shell can often solve the problem, so it is rare to fire three times in a row in a very short time.

This meant that they had no idea that the barrel would be overheated and would easily explode.

So they were sad, the entire artillery position was directly destroyed, and Sun Yi was also blown away by the explosion, and his life and death were uncertain.

"Uncle Bi!" Sun Ce shouted in pain, that was his brother!

"It's okay, I can't die...... Sun Yi struggled for a while, but he still passed out, and he survived.

Sun Ce immediately breathed a sigh of relief when he saw this, but the explosion of the artillery made the subsequent siege a problem. Seeing the strong city wall of the other party, and then looking at the situation of his own army, Sun Ce had to announce that Mingjin had withdrawn his troops today.

The army quickly retreated to a safe distance, Sun Ce must find a way to break through the city walls and gates within tonight, otherwise there will be no way to capture Hefei!

Seeing the other party retreat, Yang Feng couldn't help but breathe a sigh of relief, he didn't expect that the most critical moment would end today's offensive and defensive battle with such a dramatic result.

"Replenish the psionic energy immediately and restore the protective power of the protective shield!" After giving an order to the soldiers, he quickly returned to the city wall. Tomorrow is obviously going to be a tough fight, and it's best to rest as soon as possible tonight.

It's just that even if he said that, at the end of the night, the soldiers of Yang Fengbu were not able to sleep well, and their nervous emotions made them almost sleepless all night...... (To be continued......)

PS: The rapid development of firearms technology by the Combine, as well as the explosion of artillery breeches, is it really just a coincidence? Perhaps one of them is the causal law contest between the Heavenly Dao system and the Qunying system? Those unknown, wars outside the battlefield! Or, really, it's just a pure coincidence, in fact, war has always been the period of the most rapid development of science and technology, from ancient times to the present day......