These zombies broke through the window and were just about to jump in.

Lin Cheng opened fire.

"Tap-da-da!"

In two breaths, Lin Cheng emptied the magazine.

Will jump into the air, the two zombies that have not yet come in, directly hit the ground.

"Tap-da-da!"

The combat robot patrolling below exploded the zombie's head with a few shots.

......

Meanwhile.

Other battle robots also began shooting at the zombies.

More than a dozen battle robots.

In a matter of seconds, thousands of bullets were fired!

......

However.

The sound of windows being smashed is increasing.

Throughout the window on the fourth floor, there were zombies jumping up from the third floor!

Some zombies have strong jumping ability.

Able to send directly to the third floor and jump to the height of the fourth floor.

Then climb into the fourth floor.

Then the zombie jumping ability is relatively weak.

Before I could jump, I fell.

The unrest is growing.

More and more zombies felt the smell of Lin Cheng's flesh and blood.

They began to go berserk.

One by one, they rushed out.

......

The movement on the third floor caused a riot on the second floor.

Under this chain reaction.

The zombies in the entire building began to become restless!

The roar of the zombies became louder and louder.

The impact from inside the building was getting stronger and stronger.

"Knock knock!"

The zombies slammed into the walls and gates.

A battle robot responsible for guarding the entrance and exit of the corridor.

It's almost impossible to withstand the impact of these zombies!

......

Peng Qingqing was so frightened that her little face turned pale.

Although she knows about zombies, where has she seen a zombie group of this size?

Just below the feet, less than two meters away.

There are tens of thousands of zombies frantically trying to rush out.

Eat them!

Who is not afraid to change?

"Lin Cheng, I... What should I do? "

Peng Qingqing's voice was full of crying.

......

Lin Cheng skillfully changed a new magazine.

Then grabbed Peng Qingqing's back neck.

He picked her up like a chicken.

Holding a rifle in one hand, he tore open a gap in the influx of zombies in front of him.

Then he threw Peng Qingqing down.

In Peng Qingqing's screams.

The battle droid below caught her and stuffed her into the armored vehicle.

"That's a lot!"

"I hate women who only scream when they are in a crisis!"

"I can't help with hanging, and I still hang a bunch of things!"

......

After throwing Peng Qingqing down.

Lin Cheng didn't have any worries.

"Squad 123 strengthens firepower output!"

"Squads 14 and 15, smash the ground, smash a hole every 20 meters!"

The 123 squad of 30 battle robots immediately accelerated their attack.

"Tap-da-da!"

In a burst of intense fire output.

There are also instantaneous grenades exploding in the air.

The fragments of the grenade blew the surrounding zombies apart.

They methodically harvested the zombies.

......

And 14, 15 squad members.

The rifle was put away.

Facing the ground, he directly punched out.

Suddenly, a hole the size of a basin appeared in the ground.

One punch and one hole.

30 battle robots.

In less than a minute, nearly a hundred holes were smashed.

This efficiency is faster than that of landmines.

Look down from the mouth of the cave.

The entire 3rd floor is densely packed with violent zombies.

They rushed like a tidal wave to the exits and windows.

......

"Fragmentation grenade, on!"

Lin Cheng ordered.

30 combat robots, immediately take out fragmentation grenades.

Threw down these holes.

......

"Knock knock!"

A series of explosions sounded.

The entire third floor turned into a sea of blood!

In the open area, the killing area of the fragmentation grenade is about 30 meters in diameter.

For non-intensive targets.

The lethality is not great.

But the zombies downstairs are already so dense that the corpses are crowded.

This is for fragmentation grenades.

Almost every piece of debris can play a lethal role.

These fragmentation grenades, after falling into the corpses.

Each one can blast the zombies around the explosion into pieces of meat.

Nearly a hundred fragmentation grenades.

Almost the entire corpse group on the third floor was cleaned up!

......

The magazines that Lin Cheng carried with him had all been emptied.

He took the rifle and directly killed dozens of zombies at close range.

Finally, the head of a zombie next to him was directly exploded.

And the rifle could not withstand many blows.

Also shattered.

More than a dozen zombies immediately roared and approached.

Sharp claws, pounced on Lin Cheng.

Lin Cheng did not pause in the slightest.

Reach for your back.

"Brush!"

A flash of cold light.

There were more than ten zombies around, all of which had their heads cut off!

Thousands of forged steel knives, slashing and killing zombies, like cutting tofu!

......

"Squad 123, follow me to the third floor!"

"Team 4, break open the fire door and enter the third floor!"

"Within 5 minutes, wipe out all the zombies on the third floor!"

"The rest, empty the fourth floor and continue to move!"

Lin Cheng made arrangements.

Then jump up.

Stomp down!

"Boom!"

The reinforced concrete floor slab was directly smashed through by Lin Cheng!

The huge impact force made Lin Cheng also stomp on the heads of the two unlucky zombies below.

......

The four teams immediately cleaned up the remaining zombies on the third floor.

Then.

Follow the method of the fourth floor.

A hole was smashed in the floor.

Use fragmentation grenades to harvest the zombies on the 2nd floor.

......

"Squeak!"

At the moment when the first grenades were dropped.

A creak sounded.

Followed by.

Several reports sounded one after another.

"Report! The 2nd floor zombies have destroyed walls and fire doors! "

"Report! The zombies on the 1st floor have destroyed the walls and the ground! "

"Report! Basement zombies are pouring out of the cave! "

......

"Retreat!"

"Fire now!"

Lin Cheng did not hesitate in the slightest.

At the same time as the order is given.

Step out a few steps and jump out of the window at once!

The same goes for combat robots.

Even their speed was faster than Lin Cheng.

The next moment.

"Bang bang!"

A barrage of artillery rang out.

Each round was filled with dozens of shells.

Five rounds in a row.

Thousands of super-lethal shells knocked the building to pieces.

Finally "boom".

The whole building collapsed with a bang!

(Today's 2nd change, and 8 more).

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