Even if the plasma worms knew that there was a hunting team underground, they had to hide underground, and due to the adventurous bombing of the air and space fighters, the cave was blown up, so that the plasma worms lost the support of the ground zerg and were easier to kill.

But even so, Bai Qi's hunt became more and more difficult.

The Zerg sent thousands of Knife Bugs and Tank Bugs into the ground to find their tracks, so that they could no longer navigate the caves, and once they encountered the Zerg, they would immediately summon nearby Zerg to intercept the space warriors.

Fortunately, the underground caves are too dense, with several square kilometers of battlefields, hundreds of meters thick rock formations, and caves as dense as spider webs.

……

When the southern battlefield of the mine was in full swing, the 40,000 Zerg army from the Zerg Hive was also strangled with the human army gathered in the north, and the same thing was also played out on the northern battlefield.

……

Bai Qi led more than sixty space warriors under his command to wander around the cave, and since he easily killed the first plasma worm, the subsequent hunting became extremely difficult.

Every plasma worm is hiding in the caves where they are not defenseless, and there are hundreds of zerg guards around each cave, and the assassination can only turn into a strong attack.

Gradually, casualties began to emerge among the space warriors.

The most dangerous time, when Bai Qi and they stormed into the cave where the plasma worm was hiding, the plasma worm had already gathered the plasma bomb, if it wasn't for Bai Qi's reaction fast enough to run into a side hole, this plasma bomb would definitely be able to beat it into dust.

The few space warriors who followed behind Bai Qi were just wiped by the plasma, and they were directly burned into ashes along with the equipment.

This change scared everyone out.

Fortunately, the team led by Bai Qi ran the fastest. When they rushed into the Plasma Bug's line of sight, none of the other five teams had yet to enter the Plasma Bug's line of sight. Otherwise, three cannons will be fired at once, and I don't know how many people will die.

Fortunately, Bai Qi, who entered the state of the heart of a warrior, was unusually calm. Thinking that a plasma worm could only fire one plasma bomb at a head, and since a plasma bomb had been fired at their head, it should be relatively safe for him to go out and burn the plasma worm with a life-saving "fireball technique" in his hand.

The fireball spell can be said to be the most famous third-level spell, this spell can highly condense the fire element, and then launch the condensed fire element ball with a spell, and after the fireball spell hits the target, it will explode. Splattered a large amount of condensed city liquid fire elemental.

Many people think that the fireball technique relies on the power of the explosion to hurt people, but in fact it is not entirely the case, the explosive power of the fireball technique is not high, far inferior to another third-level spell "Arcane Bomb", the reason why this spell has become the most powerful third-level spell is because after it explodes, it will spray a large amount of almost liquid fire element, which will adhere to the target and continue to produce high temperatures, and this pure fire element burns and cannot even be extinguished with water. It can only be dispelled by magic means, and if it is not dispelled, this kind of burning can even burn through and melt an iron plate several centimeters thick, which is by no means something that the flesh of ordinary creatures can bear.

Plasma bugs can't withstand it either. It was quickly burned through the carapace by the fire elemental of Wakare......

Discovering that the fireball technique could actually kill plasma insects in seconds, Bai Qi suddenly thought about it.

The price of the Fireball Technique is quite high, requiring one of the four Blue Evolution Crystals. Idle tasks, use this scroll to complete. I am sure to drop my pants, but now is the critical time to turn the tide of the war. It's definitely worth it to use the Fireball Technique.

Bai Qi evacuated with the frightened space soldiers and quickly retreated into the depths of the cave.

After some counting, Bai Qi found that the plasma bomb of the plasma worm just now actually killed three space soldiers.

Thankfully, there were no casualties among the back squad.

When the plasma worm unexpectedly fired the plasma bomb, the captain of Bai Qi's team, Heinrich, and Adrian were breaking in the back, responsible for dragging the two tank bugs guarding the plasma bug, and Bai Qi rushed to the cave with two scattered melee fighters, intending to form a shield wall, so that the long-range attackers who rushed in behind him could attack with peace of mind.

Unexpectedly, as soon as Bai Qi rushed through the corner of the cave, he saw the plasma worm emitting a white light towards the head and neck in their direction.

Seeing this light, Bai Qi rushed into the side hole next to him almost reflexively, and the two melee fighters behind him and the ranger who followed the closest were swept by the plasma bullet and turned into flying ashes.

After this incident, the morale of the space warriors under Bai Qi's command couldn't help but plummet, and some people would rather deduct their profits than hunt dangerous plasma bugs.

Bai Qi remembered the power of the fireball technique just now, and thought of an idea, if other warriors feinted around to attract the attention of the plasma insect guards, and the mage blessed himself with the invisibility technique, wouldn't it be safe and fast to sneak in and shoot the plasma worm with the fireball technique?

As long as you sneak in from directly under the cave and attack from the belly of the plasma worm, you don't have to worry about the plasma worm fighting back to death, and reward yourself with a plasma bomb, and below the abdomen is the attack blind spot of all the zerg, of course, it is also the attack blind spot of the plasma worm.

Bai Qi expressed his opinion, and of course everyone was happy, and the "Teutonic Knights" and the "Solomon Guard" also took out the two fireball scrolls in their respective hands and handed them to Bai Qi.

The next assassination was indeed much easier, and there were other warriors on the periphery to attract the attention of the plasma worm guards, and then the mage blessed Bai Qi with the invisibility technique.

After stealth, Bai Qi quietly broke through the defense line of the plasma worm guard, and came to the bottom of the large cave where the plasma worm was hiding from the bombardment, and activated the powerful fireball technique......

After activating the fireball technique, Bai Qi will inevitably be discovered by the plasma insect guards, and at this time, only Bai Qi has the ability to stand out from the encirclement of the swarm of insects after activating the berserk talent.

With this method, the efficiency of the Fortress Thirteen team suddenly increased a lot.

In the news from the military, there are fewer and fewer plasma bugs alive......

After more than an hour, finally, the last plasma worm died under the fireball fired by Bai Qi......

On the ground, in order to achieve this result, the human army paid a great price, more than 100 air-space fighters were shot down alone, and nearly 1,000 air-space tanks were lost.

In the air battle, the Aerospace Tank completely ignored the losses, wiped out the Zerg's stealth mosquito army as quickly as possible, and flew over the Zerg army to bombard wildly, so that the plasma worm had to aim its main firepower at them, so that the air and space fighters were reserved for the human army. (To be continued......)