Mythical Qin: I, Gao Yao, will never be a eunuch!

Heavy rain poured down, and the sky and earth were hazy. A large number of southern troops in armor took advantage of the bad weather and sneaked through the mountains and forests like ghosts. They moved quickly and silently, as if they had merged into the mountains and forests.

At this moment, many soldiers of Zhang Han's rear army were busy setting up tents to provide a temporary shelter for themselves and their companions. At the same time, blazing fires were lit up in some open spaces, and the orange-red flames illuminated the surrounding space, dispelling the chill that penetrated into the bone marrow. The southern border area has rain all year round, and the soldiers of the southern border army have long been accustomed to this damp and cold climate. However, the imperial army is still very sensitive to such rainy days.

Gao Yao had trained his troops well, including training them to fight in rainy weather. Therefore, the actions of these Southern Border soldiers were not affected at all by the rain, and they were still agile and efficient. They gradually approached the camp of Zhang Han's rear army, carefully avoiding obstacles and sounds that might reveal their whereabouts.

When they were less than 200 steps away from the rear army camp, they finally stopped advancing. This was because this distance was already an extremely dangerous limit. If they continued to get closer, even in such a heavy rain, they would most likely be noticed by the vigilant patrol soldiers.

At this time, Han Xin quietly lurked in a hidden place, closely watching the every move of his soldiers. All the soldiers of the Southern Border Army lowered their bodies as much as possible, using the terrain and vegetation to cover them, and approached the imperial army little by little. If someone could stand in mid-air and look down at the scene below, they would be surprised to find that a large number of Southern Border troops were pouring towards the imperial army from all directions like a tide, and their density was like a swarm of locusts passing through, which was chilling.

With a large number of soldiers rushing in like a tidal wave, the whole scene was extremely spectacular and tense. Han Xin stood in front of the crowd with a solemn expression, his eyes were sharp, staring at the front like a hawk. Suddenly, he no longer hesitated or politely, and with a sudden pull of his right hand, the long sword at his waist was instantly unsheathed.

Han Xin made an important decision without hesitation - abandon all cavalry units. After all, in such heavy rain, cavalry combat will face many unfavorable factors. First of all, people may be able to overcome the impact of the harsh environment with tenacious will and superb riding skills, but horses, as a kind of creature, have an instinctive reaction that is irresistible. The rain will wet their hair and make their bodies heavy; the muddy ground will increase the risk of slipping horseshoes, seriously affecting mobility. In addition, the huge body of the cavalry is extremely difficult to effectively conceal on the battlefield, which undoubtedly became a fatal weakness in their actions.

What Han Xin was looking for was not a protracted war or a large-scale direct confrontation, but a surprise attack that would take the enemy by surprise and end quickly. To this end, he ordered all baggage and soldiers to be as lightly equipped as possible so that they could move quickly and inflict a fatal blow on the enemy.

"All troops, attack!" Seeing that the time was ripe, Han Xin gave the order without hesitation. In an instant, the soldiers around him responded one after another, taking out the rockets that had been prepared long ago from behind their backs in a uniform manner and quickly ignited them. The arrows of these rockets were all soaked in flammable kerosene, and even though it was raining heavily at this moment, the flames could still continue to burn for a considerable period of time in the rain.

Then, a blazing rocket shot up into the sky, dragging long flames and whistling with a sharp and piercing sound. They streaked across the gloomy and oppressive sky like lightning, and flew straight into the air with the force of thunder. Even under the cover of heavy rain, the kerosene on the arrows could still continue to burn for a while, which was also a signal.

At the moment the rocket was fired, all the soldiers of the Southern Border Army suddenly awakened like long-dormant tigers. They stood up from their hiding places without hesitation, and rushed towards Zhang Han's rear army camp silently and firmly in the pouring rain.

"Swish, swish, swish, swish, swish..." For a moment, the sound of rapid and orderly footsteps sounded on the muddy and slippery ground, like a gust of wind and rain sweeping over.

At this time, almost all of the people at the front of the team were nimble archers. As they charged, they quickly drew their bows and put arrows on them. As the bowstrings vibrated and released, a large number of dense arrows like raindrops shot towards the direction of the imperial army like locusts passing through a land.

"Puff, puff, puff..." These arrows, accompanied by the sharp sound of wind, hit the targets accurately. Some were deeply embedded in the enemy's armor, while others directly pierced the enemy's body.

This sudden and violent attack was completely unexpected by the imperial army, so that the soldiers who first noticed that something was wrong did not have time to send out any alarm signals, and they fell in a pool of blood screaming. Until more and more soldiers were shot and fell to the ground, the dull collision sound and painful groans intertwined, finally aroused the vigilance of other soldiers in the camp.

This distance was only about 200 steps in total. When the imperial army finally noticed something was wrong and hastily grabbed their weapons to resist, the soldiers of the Southern Border Army had already rushed to the camp that had not yet been completely built like a storm.

"Kill! Kill! Kill!" Deafening shouts of killing suddenly rang out, scattered at first, but soon gathered into a surging tide of anger, sweeping over the sky and the earth. The soul-stirring shouts of killing resounded throughout the battlefield, as if they were going to tear the sky apart, giving the soldiers of the imperial army an extremely heavy psychological deterrence.

At this moment, in the eyes of the imperial army, there was a sudden downpour. They had not even had time to warm up from the cold before the heavy rain fell mercilessly. What was even more terrifying was that in this rain, the Southern Border Army appeared in all directions like ghosts, and pounced on them at the same time. This sudden attack without any signs undoubtedly caused the imperial army's inner fear to rise sharply.

In stark contrast, the Southern Border Army soldiers who initiated the raid were like hungry wolves, their eyes flashing with ferocity and their fangs bared. They galloped across the battlefield, fighting bravely, and every move was filled with fierce killing intent and an indomitable momentum, their ferocity was beyond imagination.