The basement of the Bio Lab is used by Umbrella Corporation for mass-producing bio-organic weapons.

  They excavated huge spaces underground.

  Build a large cultivation base using resources to build a biochemical ghost.

  At this moment, Bai Lang and Zhao Yi were among them.

  After falling into the trap set by Dr. I, they arrived here all the way.

  The person in charge of the venue was shot dead.

  The biochemical ghosts here have become extremely hungry because they haven't received food for a long time.

  Bai Lang and Zhao Yi have just landed.

  Before they could even figure out the situation, hundreds and thousands of biochemical ghosts with steel blades waving in their hands were screaming and pouncing on them.

  They want to devour them to satisfy their thirst for slaughter.

  "Awesome!"

  Looking at the mountain of corpses and sea of blood in front of me.

  Still worried about Baiyan's situation in her heart.

  The white wolf couldn't help but curse, and immediately raised his gun along with Zhao Yi.

  With fierce firepower, shooting and killing the approaching biochemical ghosts step by step.

  As it is a breeding ground, the levels of variants here are generally lower, and the vast majority only have first and second-order strength.

  But relatively speaking.

  Their numbers were also very large.

  The Unknowing Electric Group is secretly plotting something. In the entire underground cultivation base, there are actually several thousand biochemical ghosts!

  Fortunately, they were distributed relatively scattered.

  Otherwise, Bai Lang and Zhao Yi would be instantly overwhelmed by the torrent of corpses like a flood, leaving no trace behind.

  But still.

  Their current situation is also precarious.

  Dozens or even hundreds of biochemical ghosts surrounded Bai Lang and Zhao Yi, attacking them from all sides every minute and every second.

  These biochemical monsters let out hoarse roars.

  All means of attack have been used.

  Steel blade, sharp claws, shield...

  All sorts of extremely powerful attacks came in from completely different directions, causing Bai Lang and Zhao Yi to gradually become exhausted from responding.

  "There are too many variants, this can't go on like this, we need to think of a way to break through!"

  Back to back and firing simultaneously.

  "Zhao Yi of the Flying Tiger Squad said to the White Wolf behind him."

  The White Wolf also understood their current situation and immediately nodded in response:

  "Alright, I'll clear the way with grenades!"

  Originally, using weapons such as hand grenades that can cause explosive damage in an enclosed space is a very dangerous thing.

  Due to the enclosed space, it is likely that it will not be able to withstand the force of the explosion and collapse or crumble.

  Moreover, the shockwave generated by the explosion can also easily affect the attacker.

  But the current situation is incomparable.

  The underground cultivation base of the Institute of Biochemistry is very large, covering an area of several hectares and a height of nearly ten meters.

  This space can be said to be a large square built underground.

  Suffering damage from hand grenades is easy.

  The white wolf immediately took out several high-explosive grenades and pulled the ring, throwing them forward.

  Rumble!

  Explosions rang out one after another.

  A burst of flames erupted in the vast space of the underground cultivation ground, instantly engulfing dozens of biochemical wraiths around it.

  Until the smoke disperses.

  The place where the explosion originally occurred was left with only a shattered ground from the shockwave and incomplete bio-ghost corpses.

  An explosion of such a large scale would inevitably shock all the biochemical ghosts in the entire underground breeding base.

  It will soon be packed in here.

  At that time, White Wolf and his men will be unable to escape.

  Swarmed by a multitude of biochemical ghosts, gnawed to the point where not even bone residue would remain, all transformed into nutrients for their evolution.

  So Bai Lang and Zhao Yi immediately began to advance.

  The obstacle ahead has been cleared.

  The two of them held their submachine guns and fired all the way, shooting down the remaining biochemical ghosts one by one, and then entered the next area.

  The entire underground cultivation base is divided into more than a dozen large and small areas according to different uses.

  And Bai Lang and his team had just broken through the first region.

  Next were more than a dozen other locations fraught with similar danger, and thousands of bio-mutated creatures waiting for their arrival.

  Clang!

  The alloy gate behind him came crashing down.

  Flying Tiger Team Zhao Yi is trying to communicate with Tian Xia and others in the research institute.

  But the signal interference is very serious.

  Nothing useful can be heard from the headphones, only piercing electrical noise keeps coming.

  Seeking support in vain.

  The two of them could only move forward again, hoping to pass through the layers of blockade in many areas, avoid the sharp teeth and claws of countless biochemical ghosts, and successfully find an exit.

  However, the opportunity is slim.

  Every area in the breeding ground has a big difference in the number and strength of biochemical ghosts.

  Some have only a dozen or so second-order ghosts.

  But more often than not, Bai Lang and Zhao Yi faced dozens or even hundreds of three-stage peak variation bodies with bared teeth and claws.

  The fierce battle lasted nearly an hour.

  Bai Lang and Zhao Yi leaned against the cold wall of the training ground, panting heavily.

  This is their fifth area cleaned up.

  Although they were all elite mercenaries.

  But being surrounded for a long time also made them gradually feel exhausted and unable to catch their breath, having no choice but to stop and recover as much physical strength as possible.

  And to make matters worse, the roof leaks on a stormy night.

  Although they had already carried a large amount of ammunition before departure, and during the battle, Bai Lang He Zhaoyi also paid great attention to controlling the consumption of ammunition.

  But continuous high-intensity battles also made their ammunition consumption extremely fast.

  Until now.

  The two people's main weapon bullets have all been used up.

  Armed with only secondary weapons and melee weapons, engage in close combat with bio-organic mutants.

  Not only has the killing speed slowed down.

  Even the danger of fighting has increased greatly.

  But if they wanted to return to the ground and reunite with the main force, White Wolf and his men had no other choice but this.

  Rest is complete.

  Enter the next area again.

  This time, what appeared in front of Bai Lang and Zhao Yi was an even larger horde of corpses.

  Rough estimate.

  There were over a hundred low-ranking biochemical ghosts, their pupils shining with an unusual brilliance, displaying an exceptionally excited state.

  The reason for this phenomenon is the leader-level variant located in the center of the corpse group.

  Fight the demon!

  Compared with its peers of the same rank on the side, this war demon that has only evolved to the Lord level presents a crushing posture in terms of physique and other aspects.

  His height of over 1.4 meters is not as tall as the Green Giant.

  But the armor worn on his body was what made the War Demon even more powerful.

  The material of the armor is a special biochemical alloy.

  This alloy can only be generated by the War Demon itself.

  The specific method is to gather a large amount of yin energy and various metal elements in the body, using the catalytic and replicative properties of yin energy to rearrange and replicate these metal elements, thereby generating an indestructible crimson armor on the surface.

  This crimson armor makes the War Demon one of the strongest defensive existences among same-level Biochemical Ghosts.

  It also makes its enemies feel extremely troublesome when facing it.

  At this moment.

  Bai Lang and Zhao Yi have this feeling.