At this moment, two more black whirring things flew up, and although everyone was shocked again, because of the trick just now, they were obviously slowing down, and several of them didn't even instinctively hide.

However, this time it was not a stone, and with the two explosions of "boom" and the blinding white light flashed, muffled snorts and screams abounded.

After these two explosions, Xia Feifei quickly rushed upstairs, and the elephants and crocodiles downstairs also rushed upwards.

A fierce burst of gunfire rang out ...... "bang bang bang", and the people who were stunned by the detonation bomb were directly killed without any resistance.

Xia Feifei, the elephant, and the crocodile quickly occupied a favorable position and assisted each other.

Suddenly, a shark's voice sounded in Xia Feifei's headphones, "Regiment Commander, enemy reinforcements have rushed over, at least more than five hundred people. ”

Xia Feifei ordered in a deep voice: "Their current position, is it not within the coverage of our artillery fire?" ”

"Yes, yes." The shark hurriedly responded.

"Immediately tell Charizard their coordinates, so that he doesn't have to cherish the shells anymore, and if they dare to rush this way, they will blow it up. You guys cooperate well and buy us a quarter of an hour......"

"Yes......"

Xia Feifei takes a quarter of an hour as the standard, and if he can't take Semir anymore, he can only retreat.

There are more than 500 people, no matter how powerful the Hell Mercenary Group is, it is impossible to fight hard, and he will not die here with Saimir, it is too cost-effective.

However, a quarter of an hour is not a long time, so Xia Feifei needs to hurry up.

Xia Feifei asked the elephant and the crocodile to guard the staircase, while he was alone and quickly searched the rooms on the second floor.

Xia Feifei acted quickly, and on the other hand, he hadn't found anyone until now. After nearly three minutes of inspection, Xia Feifei finally confirmed that there was no longer a living person on the second floor, and obviously, everyone else was hiding on the third floor.

However, one thing can be confirmed, the second floor is Semir's command center, and one of the large rooms still has combat maps and various materials that cannot be taken away, as well as the bodies of several officers, which were killed by rockets.

At this time, the battle outside the building became more and more intense, with the rumbling of cannons and the sound of gunfire.

Xia Feifei's headphones vibrated again, and Miyana's voice sounded, "Commander, there is an enemy coming from our flank and rear, there are about two hundred people, it should be that the people left behind by the enemy have rushed over after receiving the news." ”

"Okay, Roger. The directional mines laid out can be put to good use and buy us ten minutes. ”

"Yes......" Miyana immediately responded and conveyed Xia Feifei's order.

Xia Feifei put away the pistol, rushed downstairs and took his sniper rifle, and then stood at the staircase on the second floor, looking up at the ceiling.

After estimating, Xia Feifei directly lifted the 12.7 mm caliber sniper, and then let the elephant hold the tripod with both hands.

Xia Feifei adjusted it, and fired a shot directly, with a "bang", the ceiling was directly pierced by the powerful force of the big sniper.

A terrible scream of "ahhh

Xia Feifei didn't care so much, and quickly fired a shot, and then opened a hole in the ceiling, this time there was no scream, but the sound of horror was louder.

Drops of blood dripped from the first gun's eye, Xia Feifei was not affected at all, and quickly fired another shot, still facing the position around the staircase on the third floor, and pierced a hole again.

"Bang bang bang bang...... A burst of gunfire rang out on the third floor, Xia Feifei could hear that they were also shooting towards the ground, as if they hoped to use the gun in their hands to penetrate the floor, thus killing him Xia Feifei.

However, how can the power of AK be comparable to that of a 12.7 mm sniper? Their actions were naturally in vain.

Actually, where do they not know? It's just that the unknown and invisible danger makes them too nervous and scared, although they know that such an act is futile, but some people can't help but want to try it.

And more people are leaving the staircase area. However, Xia Feifei's shooting immediately changed positions and became unpredictable, one shot in the east and one shot in the west, making the entire third floor seem to be a minefield.

Everyone felt that their feet were not safe at all, and at some point a bullet would fly up and smash the soles of their feet, because two unlucky people had already been hit.

Someone couldn't help it, tore off the grenade, and threw it down the stairs indiscriminately, as if trying to buy some time in this way.

However, the explosion of the grenade did not affect Xia Feifei to continue shooting upstairs, and the ceiling on the third floor had already been shot through dozens of holes by Xia Feifei, and some of the holes were still dripping blood.

At this time, Semir, due to the previous rocket wounds, was placed by his subordinates on a wooden bed in the corner of the third floor, and the wound on his leg was also simply treated.

But due to the loss of blood, Semir became very weak, and his heart was full of lamentation when he saw his men so frightened by the enemy's tactics.

But Saimir naturally did not accept his fate, and he called again to urge reinforcements to speed up the attack.

"The enemy's artillery is too accurate, our casualties are very large, and we are attacking regardless of casualties, general, you hold on for another ten minutes......"

"They have very powerful mines, and we've already hit fifty or sixty people......"

Reinforcements from two battalions returned from the front, as well as more than 200 people rescued from the rear, reported gloomy news to Semir. The enemy could now attack the third floor at any time, or kill him with a single shot in the next second, and let him hold on for ten minutes.

Taking advantage of Xia Feifei's opportunity to use a big sniper to deter the enemy, the crocodile quietly touched the third floor, but he was still very careful, because of those neuroses, although he knew that grenades were useless, he would still throw one indiscriminately from time to time.

So, crocodiles don't have to worry about being guarded at the staircase on the third floor, but they have to keep an eye out for grenades flying down.

Successfully reaching the corner of the stairs from the second floor to the third floor, the crocodile quickly ripped off two grenades, pulled out the safety pin, delayed it in his hand for two seconds, and then quickly threw it up to the third floor.

At the same time that the crocodile had just thrown two detonation bombs on the third floor, Xia Feifei just fired another shot, and the gunfire attracted the attention of almost all enemies on the third floor, and many people didn't see two black whirring things flying up.

And those who saw it were also dumbfounded, because in order to avoid the bullets that might come out at any time, they had already exhausted themselves, and the formation was completely chaotic, and they suddenly saw a grenade flying up, and they had no time to dodge.