What emerged from the abyss was a spiral mouthpart, with layers of sharp teeth rotating at a dizzying speed, instantly mincing the five planetary defense soldiers into minced meat, including their armor.

The alloy skeleton of the power armor made a harsh metallic twisting sound in the Zerg's mouthparts, like a can being thrown into a crusher.

"Retreat! Reorganize defense--"

Marcus's orders were drowned out by the roar of the Zerg.

What comes from the ground is not one sound, but an ensemble of thousands of sounds.

The sharp hissing of knife insects, the low-frequency vibration of digging pythons, the earth-shaking roars of executioners and stone breakers, all these sounds mixed together to form a devastating symphony of death.

Thompson stumbled backwards, the HUD on his mask flashing red warnings frantically.

He saw the huge body of the digging python completely drilled out of the ground - it was a giant worm that was thirty meters long, and the muscle tissue between its body segments was constantly wriggling and secreting corrosive mucus.

What's even more terrifying is that behind it, countless smaller tunnel worms are swarming out of the cracks, like opening the floodgates of hell.

"Emperor..."

This simple prayer became Thompson's last words.

A long-lurking knifeworm suddenly jumped out from the shadows, its bone blade accurately piercing the neck seam of the power armor.

The young soldier's mask was instantly stained red with blood, and he grabbed at the air in vain, as if trying to grasp the last hope that was collapsing.

Marcus watched his defense crumble in a matter of minutes.

Every time the digging python rolled, it would stir up a rain of blood, and in the distance, the stone crushers and executioners had broken through the tank position.

He numbly replaced the energy box of the Gauss rifle, but found that the ammunition counter had already returned to zero.

"Come and try this!"

Marcus' voice came out from his clenched teeth, and his right hand had already drawn the combat dagger from his waist.

This finely crafted melee weapon glowed with a chilling light, and the jagged edge still bore traces of the previous Zerg's green bodily fluids.

A knife insect hissed and pounced, its sickle-shaped forelimbs drawing a deadly arc.

Marcus dodged sideways, and the servo system of the power armor made a humming sound under the heavy load.

At the moment when the knife insect missed its target, he grabbed the seam of the insect's shell with his left hand, and stabbed it down with the dagger in his right hand with all his weight.

“Ka-ba!”

The sound of the shell shattering made one's teeth ache. The 20-centimeter-long dagger completely penetrated the triangular head of the knife worm, and yellow-green mucus spurted out from the wound like a high-pressure water gun, exploding a piece of smelly mucus on Marcus' helmet mask.

The mask's automatic cleaning system kicked in immediately, but a few drops of corrosive liquid still seeped into the seams, burning his right cheek.

"hiss--"

He gasped, but ignored the pain because he caught a glimpse of an even more horrifying scene:

Three meters away, a knife bug knocked the new recruit Royce to the ground.

The monster's sharp forelimbs had pierced through the breastplate of the power armor, and blood was oozing out from the gap.

Royce struggled in vain, the Gauss rifle was pinned beneath him and could not be used.

“Hold on!”

Marcus was about to rush over to rescue, but a blue figure got there first.

Veteran Carlson slid behind the Bladeworm, and the hydraulic system of the power armor made a humming sound as if it was running at full capacity.

His strong arms clamped the knifeworm's twisting tail tightly, and sparks burst out from the seams of the armor.

"Get out of here!"

With a roar, Carlson used his waist and legs to simultaneously lift up the more than two-meter-long knife worm and threw it out like a hammer.

The unfortunate insect crashed into the broken fountain statue in the square, and the sound of its shell breaking could be clearly heard.

"Well done!" Marcus pulled up the frightened Royce and slapped a magazine from a corpse into his rifle. "Can you still shoot?"

Royce's mask was covered in blood, but his eyes had regained their firmness: "For the Emperor!"

This sentence seemed to ignite the last bit of morale. The remaining Marines stood back to back in a circle, the barrels of their Gauss rifles glowing dark red due to overheating.

Marcus wiped the sticky insect blood off his mask and spun the dagger in his hand in a beautiful way.

"Listen up, you bastards!" he roared at the surging insect swarm, "This is human territory!"

The only response he got was the roar of the insect swarm.

Then, the storm of bullets and the swarm of insects collided violently.

Marcus' dagger pierced the eyeball of another knife worm again, and beside him, Carlson was using the iron fist of his power armor to smash the head of another knife worm into its chest.

At this moment, all the Marines were startled by the sudden burst of teasing voices in the communication channel.

"Need pest control service, soldiers?"

The sound came from the sky accompanied by a deafening roar of engines.

Marcus looked up and saw dozens of Viking fighter planes tearing through the smoke-filled sky like swords of divine punishment. The missiles hanging under the wings glowed with a cold metallic luster in the sun.

"Praise the Emperor! It's the Seventh Air Wing!" Royce shouted excitedly, his voice changing in pitch due to excitement.

The next second, hell descended upon the swarm of insects.

Hundreds of Banshee fighters dived first, and the huge firepower poured down like a rainstorm.

The flames from the explosion formed a wall of death, and hundreds of gunworms were instantly vaporized in the high temperature, without even having time to scream.

The rubble and insect remains stirred up by the shock wave rained down on the Marines' power armor, making crisp clanging sounds.

“We are here to support you!”

The leading Viking fighter suddenly completed a gorgeous transformation in the air, and its mechanical joints made a powerful metal collision sound.

The fighter plane's back thrusters spurted out azure tail flames, cushioning and slowing it down the moment it landed. Its heavy mechanical feet crushed several knife bugs that were unable to dodge into meat paste.

“Try this!”

The driver roared and pulled the trigger, and the Gatling guns mounted on both arms began to spin wildly.

The flames spewed out a deadly metal storm, and the firing rate of 6000 rounds per minute tore the charging Zerg into pieces.

The yellow-green insect blood and shell fragments formed a bloody rain in the air, and the steam produced by the overheated machine gun condensed into white mist in the cold air.

Marcus saw a glimmer of hope, but then his pupils suddenly shrank. He saw the Zerg Overlord in the distance making a shrill mental scream, and the sound made all humans cover their ears involuntarily.

What is even more terrifying is the swarm's reaction speed.

Almost at the same second, the originally chaotic swarm of insects suddenly changed their formation as easily as the power of one's arms.

The cluster of sky demons in the sky immediately dispersed, and their swollen spore sacs spewed out large amounts of acidic mucus, forming an interception net in the air; the gargoyles formed an assault formation and used their sharp forelimbs to directly crash into the Imperial fighter planes.