The tracker's last command was to kill everyone but Alice, and it would never stop until it received a new order.

It didn't even dodge, and the damage caused by the thunderbolt to him didn't even count as tickling.

Soon, the soldiers figured it out, and at this time they had no way out, because there were explosions and gunshots here, and the zombies in a large area centered on the city hall must have been all attracted over.

With just the dozens of them, it is impossible to deal with thousands of zombies, and it is just a fool's dream to withdraw to the previous assembly point at this time.

Then their only chance is to seize the transport helicopter, leave the city, and then enter the city hall building and wait for reinforcements upstairs.

So after hesitating for a moment, they still followed the tracker's footsteps, and at this point they did not dare to go any closer to the base of the wall.

Alice and the others looked ahead in confusion, when did Yang Yifei create so many explosives?

As for the manufacturing method, they didn't think much of it, there were too many things that could be made into explosives.

If nothing else, just unload the bullet, and the propellant inside can be used to make explosives, the point is, I haven't seen him make explosives!

However, they did not delve into this detail, on the contrary, seeing Yang Yifei blowing up the enemy, they only felt at ease, the more Yang Yifei means and stronger, the happier they are, and the more they trust him.

Yang Yifei threw thirty or forty thunderbolts in one go, then stopped, and quickly glanced at it again, and found that there were not many Ambrera soldiers killed by the explosion, only a dozen or so were lying on the ground, and the others had already rushed down the lane to the open space in front of the building.

In modern times, it is different from in ancient times, where armies were densely formed and did not know how to effectively avoid explosives, so the bombing effect was often surprisingly good.

However, modern soldiers are very familiar with explosives and know how to effectively avoid them, so they naturally lose their effect in ancient times.

The people who were killed below were basically caught off guard when the previous rounds of bombing had just begun.

"Bang"

Brady's gunfire rang out on the rooftop of the hotel opposite, and a soldier fell to the ground with blood on his body.

And this shot was like a signal to start a battle, and the dense gunfire rang out one after another, and the two sides entered a fierce exchange of fire in an instant.

The soldiers who had been paying attention to the upstairs were also on guard, and they all looked for cover and fired back at Alice.

When Yang Yifei heard the gunshot, he immediately poked his head out and re-set up the sniper rifle, his target was still the tracker.

This time, the tracker strode forward with the street lamp pole on his own, not dodging or dodging, it was simply a live target, and Yang Yifei quickly locked the crosshair on the back of the tracker's head.

Below, Alice and the others knew that the firearm was useless against the tracker, so they ignored it, and only attacked those Ambrera soldiers and handed the tracker to Yang Yifei to solve.

But they found that the tracker was less than thirty meters away from them, and Yang Yifei still didn't move, except for Alice, everyone else was a little anxious.

Jill leaned out, knocked down two Ambrera soldiers with two short shots, and quickly rushed to the next cover.

During urban shootouts, you must constantly move at high speed, and you must change places with one shot in order to ensure your own safety, which is different from large-scale positional warfare.

Hiding behind the same cover will only be found by the enemy, aiming at the fixed spot where you appear, and then taking you out with the first shot when you pop up.

Jill kept moving as he shouted into the headset, "Wright, that big monster is going to approach us......"

"Bang"

Before she finished her sentence, there was a bang, and she saw that the tracker's head was directly gone, and its body was stunned, pushing the golden mountain and falling down like a jade pillar, and it fell straight and down.

"Bang"

The second shot rang out, and the remaining half of the tracker's head was also shattered into slag, but Yang Yifei was not at ease, afraid that this guy would suddenly get up again, so he made up for an extra shot.

"......" Jill looked at this scene speechlessly, this guy still has the habit of whipping corpses?

Yang Yifei on the rooftop breathed a sigh of relief, once the tracker died, there was no power to stop them, and most importantly, Alice didn't have to face the tracker anymore, because after touching it, it reminded her of Matt.

Although this guy has no clear relationship with Alice, he is also a little ambiguous, Yang Yifei is also a man after all, and he also has a vinegar jar in his heart.

"Buzz ......"

At this moment, the sound of helicopter propellers came from afar, and the two Wuzhi crossed the high-rise buildings and quickly flew in the direction of Yang Yifei.

This kind of Ambrera company special gunship, just look like the small squirrel helicopter produced by the French aerospace company, but it is larger, and there is a bulge under the belly, which is the ammunition compartment, and in the middle of the ammunition compartment, it is a Vulcan cannon.

Yang Yifei's eyes narrowed slightly, with Barrett in his hand, he was not stunned at all in the face of Wu Zhi, he retreated to the entrance of the building first, quickly replaced the bullets in the magazine with high-explosive shells, and when the helicopter was still three or four hundred meters away from him, he raised his gun and aimed over.

"Bang"

The shot accurately pierced through the front windshield of Wuzhi and hit the pilot, and one of the helicopters fell headlong to the ground without firing a single bullet.

"Boom"

Soon, a fire broke out hundreds of meters away, and by the way, a large group of zombies gathered was killed.

Another helicopter also discovered Yang Yifei's location at this time, and the pilot pressed the start button of the Vulcan cannon.

"Aggressive ......"

A long fire snake spat out from under the belly of the plane, and the 20mm solid bullets formed a line of fire and swept towards Yang Yifei's location, and the rooftop suddenly splashed bricks and stones, and smoke and dust flew everywhere.

Yang Yifei kicked into the corridor after firing that shot, and quickly rushed towards the lower floor, and the door wall at the entrance of the corridor was beaten into a pile of ruins and collapsed.

However, at this time, Yang Yifei had already gone down three floors, rushed to the window, kicked the tempered glass window into a pile of fine broken glass ballast, and then raised his gun and aimed at the belly of the helicopter above.

"Bang"

"Boom"

The shot hit the helicopter's fuel tank, and the helicopter exploded into a large fireball in the air.

The biggest threats were solved one after another, and the ensuing battle could almost be described as one-sided.

The two sniper rifles upstairs were flanked one after the other, and with Alice and Jill, their combat effectiveness was far from being comparable to these ordinary soldiers, and the other side quickly suffered most casualties.

Dr. Elsford was held hostage by two soldiers and hid behind a bunker, but he was now at ease, and Ambrera was defeated and had no power to fight back, and it was only a matter of time before he was eliminated.

However, he was also worried that when these guys were at the end of their rope, they would pull him on his back, so he said loudly: "Can't you see it? You've been defeated, let me go, I can go and communicate with them, and let them let you go. ”