On the rooftop, the zombies' attack became increasingly fierce.

  Tianxia and Captain Raymond stood on the tarmac, each holding a gun. The muzzles of their AK-47B and M16 automatic rifles flashed with gunfire as bullets shot out.

  The zombies rushing up the stairs were mostly knocked down.

  However, there were still many survivors who managed to escape and counterattacked, baring their teeth and brandishing their claws as they charged at the heavenly soldiers.

  "Ding, host killed 1st-level zombie x8, gained 80 points of EXP."

  "Ding, host killed 1st-level zombie x7, gained 70 points of Kylin value."

  “……”

  In my mind, system alert sounds and kill alert sounds kept ringing nonstop.

  The sky was already littered with a large number of zombie corpses that had fallen to the ground, with blood flowing everywhere.

  These corpses were soon trampled by more zombies, their dry and withered bodies becoming fragmented.

  The undead horde that had just emerged from the void suddenly grew even more massive, like a giant wave crashing down from the mountains, surging towards the sky.

  And what's even more alarming is yet to come.

  On the rooftop crowded with zombies shoulder to shoulder, two second-stage evolved zombies have appeared!

  Second-tier Green Giant

  On his robust and sturdy body, a number of emerald green bone spurs protruded.

  After activating the frenzy skill, the green giant wrapped in flames releases a violent and brutal force.

  Second-order crazy baby.

  Four limbs float with a cyan pattern, the originally tightly held surgical knife is replaced by thin as cicada wings and sharp as mud cyan claws.

  After hiding, Crazy Baby's body became invisible and imperceptible, really becoming a strange and mysterious ghost that came without a shadow and left without a trace.

  Beyond all doubt.

  The threat of these two second-order variants is absolutely not inferior to that of the previous second-order biochemical ghost!

  Tianxia and Ling Huo fell into fierce battle once again.

  The Green Giant is against Tianxia, while Crazy Baby has found Ling Huo Zhe.

  The two of them were again held up and unable to free themselves to support others.

  At this time, there are only three minutes left before the arrival of the relief troops!

  "Hold on! Support is coming right away!"

  Captain Raymond cheered loudly.

  The team leader Raymond pulled the trigger, but the M16 had no reaction at all.

  It's clear he's run out of bullets.

  At this time, several zombies had already stepped over the stairs, and their grayish-black feet had trodden on the apron.

  "Damn it!"

  The captain, Raymond, cursed loudly.

  He immediately pulled out his secondary weapon, a revolver, and continued firing at the approaching zombies.

  It's not just Captain Raymond who is like this.

  At this moment, prolonged firing has almost exhausted the bullets of a large number of mercenaries.

  Hank, Lena and sleeper Seth are all like this.

  Stairs, iron fence and helicopter wreckage, these three places become the target of zombies' all-out attack.

  These zombies kept coming, fearless of death. Even if their own kind in front were torn apart by bullets, the biochemical virus inside them would drive them to keep closing in, closer and closer!

  Hank held a Glock pistol in one hand and raised a military entrenching shovel in the other.

  Distant zombies are shot with a Glock, and those that get too close are batted away with an iron shovel.

  Hank stood at the forefront, engaging in close combat with the zombies, his robust body resembling a copper wall and iron fortress, firmly blocking the zombies outside.

  However, Hank is strong again, but he is just one person.

  Two fists can't contend with four hands.

  Facing endless zombies, his physical strength was also rapidly consumed.

  Hank was gradually surrounded by a surge of zombies, his body scratched and wounded in many places, with some areas bloody and mangled.

  Team member Lina and the SEALs from the sniper squad wanted to shoot, but they were worried about accidentally hurting Hank, so they hesitated.

  At this moment, a faint purple-gold light flashed by.

  With a roundhouse kick, all the zombies entwined on Hank's body were kicked to one side.

  It turned out that the Tianxia saw Hank being swallowed by zombies, worried about the safety of his teammates, and immediately gave up entangling with the Green Giant to come and rescue him.

  He hastily took Hank to the back.

  At this time, Hank was covered in wounds, with scratches and bites from the zombies that were deep enough to see bone, and bright red blood flowing out.

  "Never mind me, go help the captain and the others quickly."

  Hank leaned against a broken piece of building debris, panting, and said to Tianxia.

  "But your wound..."

  Tianxia still can't put his mind at ease about Hanke.

  In view of this, the system has shown that Hank is infected with a biochemical virus and will become a member of the zombie army in about a day.

  Suddenly, a flame shot up into the sky.

  Helicopter wreckage was shrouded in smoke, and the sound of explosions echoed across the entire rooftop.

  Just now, the Lurker's Sathra minions were heavily surrounded by zombies.

  At the moment when he was about to be swallowed by zombies, this mercenary pulled the pin of the grenade at his waist and dragged the zombies down to hell with a fiery explosion.

  Seth's self-destruction didn't delay the zombies for long.

  Only a few seconds later, more zombies climbed up along the helicopter tail and onto the helipad.

  The spirit fox used its own strength to hold off the green giant and crazy baby, but because its weapon was not strong enough, it gradually began to fall at a disadvantage.

  Tianxia grabbed an AK-47B and rushed over to support Ling Huo Zhe.

  The battle has become no longer easy up to now.

  The AK-47B in Tiansha's hand and the Desert Eagle in Linghu's hand fired at the same time, but could only gain a slight advantage.

  It will take some time to win.

  On the other hand, Captain Raymond and Rena's mercenaries were also doing their best to stop the zombies from advancing further.

  Left-handed pistol, USP, Mauser pistol.

  Three handguns fired with all their might, shells falling to the ground, making a series of crisp sounds.

  However, the zombies were still slowly closing in.

  Gradually, they were forced back by the zombies.

  From the periphery, they gradually retreated to a small area in the center of the apron.

  The biochemical aberrations' hoarse bellowing grew louder, and Tianxia could even smell the nauseating stench from their mouths.

  Finally, the last three minutes have ended.

  A Flying Eagle transport helicopter flew in from the horizon, hovering above them and dropping down a rope ladder.

  The roar of the propeller is not small.

  The heavenly omen hastily reminded everyone to climb up the rope ladder.

  He quickly helped Hank up and together they climbed the rope ladder.

  All surviving mercenaries were left hanging on the rope ladder.

  The Flying Eagle transport helicopter began its ascent.

  "Oh no! The zombie is climbing up the ladder!"

  The Tianxia at the bottom of the rope ladder suddenly exclaimed.

  Only to see that a zombie had already grabbed the rope ladder and was trying to climb up towards Tian Xia and the others step by step.

  And so did the zombies below.

  They even piled on top of each other, forming a small zombie tower, with the zombies at the very top holding onto the rope ladder tightly, allowing their fellow zombies to climb up quickly.

  Everyone fired their guns, but it had little effect.

  There are still zombies coming up from the rooftop one after another.

  Hank's face was resolute.

  He made a move that was both reasonable and unexpected.

  Hank pulled out a C4 plastic explosive from his backpack, while his other hand gripped a knife and cut the rope ladder.

  "Hank, don't send yourself to death!"

  Everyone understood Hank's plan and wanted to stop him, but it was already too late.

  At this point, in order to escape alive, someone must make a sacrifice.

  Hank is seriously injured and may have contracted a biochemical virus. It can be said that he has lost the possibility of survival.

  He was very clear that it would be best for him to stop the zombies himself.

  Only to see Hanke reveal a tough guy smile, activate the C4 bomb, and let gravity pull himself into the brutal bloodthirsty zombie crowd below.

  Countless zombies pushed and squeezed, wanting to tear Hank apart and devour him the moment he fell onto the rooftop.

  However, waiting for these zombies was an explosion several times more intense than before.

  Rumble!

  As Hank fell into the zombie horde, the C4 bomb exploded with a deafening roar.

  A sea of flames swept across the entire rooftop in an instant.

  The massive force will tear the zombies apart and send them flying along with shattered building debris to who-knows-where.

  The rooftop along with the helipad was blown to smithereens, and even the seventh floor was barely spared, collapsing in a cloud of smoke.

  Inside the Flying Eagle.

  Under the reflection of the fiery sky, Tianxia and others gradually disappeared into the distance...