The effect of the human mecha force is very good, the casualties of the zerg and the desolate beasts are very large, but they can hardly impact the defensive barrier, and similarly, when the human mecha warriors retreat behind the defensive barrier, these zerg and desolate beasts cannot attack them.

On the premise of ensuring the effective killing of the Zerg Desolate Beasts, this method can also protect the defensive barrier to the greatest extent, and the human mecha troops pay only a small price.

However, these are all based on the fact that the combat effectiveness of those converted mecha warriors is much higher than that of the Zerg and the desolate beasts, so as to ensure that in a very short period of time, those mecha warriors can kill the desolate beasts of the Zerg in front of them.

Only if the strength of the Zerg and the Desolate Beasts is much higher, they can maintain such low casualties.

The IQ of the Zerg is very low, but it is a low-level Zerg, and the Zerg who launched this beast tide is at least an excellent level, or even a more terrifying guy, that level of the Zerg, the IQ is only higher than that of ordinary humans.

When the attack of the beast tide was blocked, the commander of the Zerg also stepped forward to change his offensive tactics.

Countless Zerg Wyverns took off, intending to attack the ground from the air, and when the time came, as long as the Mecha Division dared to go out of the defensive range of the defensive barrier, it would be attacked by them.

Although the attack of the Wyvern is not very powerful, it cannot be ignored, such a situation will definitely give the human mecha warriors a headache, and by the way, these aerial wyverns can also attract a little firepower of the human mecha warriors.

In addition, the Zerg commander also arranged for many elite-level and elite-level Zerg and Desolate Beasts to squeeze forward, if these Zerg and Desolate Beasts can quickly squeeze in front, then the casualties of the human mecha division will increase exponentially.

However, the impact of the beast tide is too strong, the Zerg and the desolate beasts are too dense, even if those elite-level and excellent-level Zerg desolate beasts are strong, but they are surrounded by dense Zerg desolate beasts, and there is not even a place to move their feet, let alone give way to them, they can only try their best to squeeze forward.

Several more waves of Zerg and Desolate Beasts fell, and outside the defensive barrier of the Longzhou Territory, the corpses of Desolate Beasts were scattered everywhere.

When a zerg or desolate beast fell, the zerg and desolate beasts behind it quickly followed, and the huge hooves trampled down, and those corpses were trampled to pieces, and after a few rounds of trampling, these wrecks were completely turned into fertilizer, nourishing the soil below, making the soil more fertile.

"Something is wrong, let's go back first."

The Zerg side arranged for the powerful Zerg and the Desolate Beasts to come over to disrupt the combat deployment of the human mecha troops, and Tang Chuan had been on the battlefield for a long time, so he would naturally notice it at the first time.

Tang Chuan carefully controlled the rhythm, when the first batch of elite-level and excellent-level Zerg Desolate Beasts rushed in front of the defensive barrier, the human mecha division just withdrew into the defensive barrier, and those powerful Zerg and Desolate Beasts needed to face the attack of countless human mecha divisions behind the defensive barrier.

No matter how strong they are, even if they are excellent-level desolate beasts, they will only have GG's share if they are set on fire by so many mecha masters at this time.

In this round, those powerful zergs and desolate beasts can only admit it in the face of the powerful firepower of the human mecha warriors.

And those zergs and desolate beasts fell, Tang Chuan immediately led the mecha warriors to rush out of the defensive barrier again, and killed the weaker zergs and desolate beasts outside.

This round is a contest between the commanders of the two sides, and it is obvious that Tang Chuan won, and he still has a hand in controlling the rhythm of the battle.

What's more, he is on the front line, and he can mobilize and arrange the mecha divisions at any time, even if he encounters some uncontrollable factors, he can also resolve them, which is something that the Zerg commander who is commanding in the rear cannot do.

However, soon, the Zerg Wyvern in the air and some desolate beasts and birds also flew to the sky above the defensive barrier of the Longzhou Territory and began to attack the human mecha troops below.

Countless spikes shot out from the Zerg Wyvern troops, and those birds that didn't attack with spikes swooped straight down, using all means to inflict casualties on the human mecha troops.

What's more, some stinging snakes even jump on the birds, and then use them as mounts, constantly attacking human pilots and defending barriers in the air.

In this case, even if Tang Chuan is so good at grasping the rhythm of the battlefield, there is no way.

I can only fight hard.

The casualties of the mecha divisions who broke out of the defensive barrier continued to increase, and the two hundred elite pilots who originally followed Tang Chuan had almost lost everything.

They can only withdraw, and if they continue to fight like this, it will not be worth it.

It is not cost-effective to exchange the lives of elite pilots for a group of low-level zerg and desolate beasts.

"There is no other way, while the defensive barrier has not been breached, all of them will be set on fire in the air and kill those Zerg Wyverns and Desolate Beasts and Birds!"

After Tang Chuan retreated back into the defensive barrier with the few dozen elite pilots left, he immediately gave an order in a rage.

At this time, no one would question the commander's order, and all the pilots unanimously abandoned the defensive barrier, turned the muzzle and energy cannon, and aimed at the Zerg flying dragons and desolate beasts and birds flying in the sky.

This time it was really like fireworks, thousands of long-range weapons armed with mecha were launched into the sky at the same time, that kind of scene was spectacular, and with such dense firepower, those Zerg Wyverns and Desolate Beasts and Birds in the sky immediately fell countless times.

The dense firepower network made it impossible for them to dodge, and soon, in less than a minute, eighty percent of the Zerg Wyverns and Desolate Beasts flying in the sky were killed, and only a few were still fleeing in a hurry.

"Divert the target and attack the Zerg and the Wild Beasts on the ground!"

It took a minute to attack the enemy in the sky, and in this minute, the defensive barrier of the Longzhou Territory was about to be breached by the Zerg and the Desolate Beasts.

At this time, they could only try their best to attack the Zerg and the Desolate Beasts in front of the defensive barrier.

As for how long the defensive barrier can last, it's not something they can control, they can only do their best.

If the defensive barrier is breached, then they will have to engage in hand-to-hand combat with these zergs and beasts.

Ten minutes of motivational battle, countless cannonball outputs, but only killed tens of thousands of desolate beasts and some of the zerg, even if you add the flying dragons in the sky, it is less than 100,000.

And the desolate beasts and zergs they killed only accounted for a quarter of this beast tide......

Their task is still very difficult...