"Boom, boom, boom!"
One missile directly exploded in the bird demon group. Most missiles were avoided by the bird demon and exploded in the air. Only a few missiles directly exploded on those bird demons.
Some weak bird demons moaned and fell directly from the air, and the blood of the demon flew in the air, but most of the bird demons were hardly affected.
The power of missiles is fairly good, but their speed is relatively slow. Subsonic missiles have almost no chance to shoot the bird demon. Only supersonic and hypersonic missiles have the chance to shoot.
"Dada dada!"
In almost a few seconds, these armed helicopters fired empty missiles, and then more than a dozen armed helicopters fired at the same time. The machine guns on the left and right sides of the fuselage roared wildly, and fire snakes shot wildly at those bird demons.
Now all armed helicopters use shelling armor piercing shells. Only when shelling armor piercing shells hit monsters, they will have an ideal effect. Ordinary bullets can hardly cause good killing effect on those monsters.
"Everybody down, everybody down!"
"Lie down!"
Two transport helicopters came forward and hurled two bombs in front of Li Mu. As soon as the two bombs landed, a small mushroom cloud appeared and the fire burst into the sky.
Li Mu lay on the ground and looked back. A hot air wave swept over. The two transport helicopters threw two napalm bombs. The napalm bombs formed two seas of fire, which ignited many monsters and slowed down the speed of the monsters at the same time.
When nuclear fission and fusion fail and nuclear weapons cannot be used, these weapons have become some of the most powerful maces in human hands, but their damage effect is still not good enough.
"Come on, we only have five minutes at most, come on!"
The two transport helicopters immediately returned to land after dropping bombs. The soldiers on the helicopter kept yelling and anxiously urged everyone to board the plane immediately.
Some monsters blocked by napalm bombs began to detour directly, and some powerful monsters rushed directly into the sea of fire. Their evil spirit blocked the flame, and the flame could hardly hurt them.
"Come on, everybody get on the plane!"
"Those who carry transport materials go first!"
"Go, go, get on the plane!"
Li Changhe and Xu Rusong urged loudly. Li Mu immediately ordered the people carrying the boxes to get on the plane first. Now is not a time for hypocrisy. More than a dozen armed helicopters stand in front and are ready to sacrifice.
The third group army paid such a high price to bring back these materials, which are now more important than people.
Li Mu immediately rushed into the transport helicopter with ten people carrying boxes. Then the transport helicopter immediately began to take off. Some students from Wudao University rushed in before the transport helicopter took off.
The second transport helicopter waited for half a minute more. Xu Rusong and Li Changhe covered everyone to get on the helicopter and jumped on the plane when the helicopter had taken off from the ground.
"Come on, come on!"
"It's only fifty kilometers away. You must go back!"
"Boom!"
Behind the two transport helicopters, the armed helicopter has begun to contact with those monsters. An armed helicopter shot down two bird monsters, then was severely torn up by a huge eagle demon, turned into a fire mass in the air and fell from mid air.
None of the more than a dozen armed helicopters retreated. These armed helicopters are usually regarded as treasures by the third group army, but now in order to cover Li Mu's evacuation, no armed helicopter retreated, and all armed helicopters fought to the death.
Soon, these armed helicopters were submerged by the dense bird demons, and one armed helicopter began to fall in the sky.
In the transport helicopter, everyone was shocked to watch this scene, and some female students even cried. This is a real war, a war that human beings can't afford to lose.
"Ready to touch!"
"Friar Tao, spell cover!"
At this time, Li Mu suddenly ordered loudly in the transport helicopter.
There is a heavy machine gun at the hatch positions on both sides of the transport helicopter, but this heavy machine gun is far inferior to the machine gun of the armed helicopter. You have to rely on yourself to defend against those bird demons.
"The students of the monastic college are ready to cast magic, and the students of Wudao university are ready for contact war!"
At this time, the voices of Li Changhe and Xu rushong also rang from the walkie talkie. In front, the last armed helicopter fell from mid air. The dense bird demon tore up the defense line composed of armed helicopters and rushed over.
If it is near the Chengdu fortress and covered by various weapons of the fortress, these armed helicopters will not be so fragile, but they are too fragile to break away from the Chengdu fortress and form an independent combat unit without quantitative advantage.
"Cast a spell!"
Xu rushong's voice sounded fiercely, and suddenly a series of spell fluctuations appeared. Wind blades, fire snakes, spells and all kinds of spells appeared fiercely and fell directly to the dense bird demon.
In mid air, a bird demon was suddenly imprisoned by invisible chains, and then a fire snake hit the bird demon. The bird demon screamed and fell directly to the ground.
This scene continues to appear behind the transport helicopter. A bird demon falls from mid air. The effect of the spell is much better than that of ordinary weapons, because the spells are directional, and it does not need radar to lock and track in order to attack those monsters.
"Die!"
A huge eagle demon fiercely broke through the blocking of spells. The sharp and huge eagle claws grabbed the transport helicopter in an instant. Li Mu rushed out of the transport helicopter and blasted the eagle demon's abdomen.
"Bang!"
The powerful Qi and terrible power broke out in an instant. The eagle demon moaned and the demon blood splashed. Many fell into the helicopter cabin. A huge wound appeared in its abdomen, which almost penetrated its whole body.
"We can't go on like this. We can't go!"
Many bird demons have rushed over. As long as a bird demon breaks through the defense line and rushes in, it will be the end of machine destruction and human death immediately.
Li Mu glanced at the ground and then rushed directly into the helicopter cockpit.
"Immediately lower the height and go to the small town to guard for help. We can't rush out!"
"But our orders are not like this!" The helicopter pilot hesitated. Now they are only 30 kilometers away from Chengdu fortress. Maybe they can rush back after a fight.
"This is my order. I'm responsible if something goes wrong!" Li Mu directly patted the strong martial order on the bridge and snapped an order.