The firepower battle between the Biochemical Legion and the Federation Army, which had previously been degraded by dodging the storm, was instantly back to a white-hot state, with more Stalkers quickly pouring in through the previously opened entry tunnel.

The base's close fire force was already stretched, and a large number of enemy units broke through the close fire force circle and entered the defensive range of the Demon Thorn Warframe.

"Damn, why are there so many! I can't even kill the pig! ”

"Base, release self-propelled fire units!"

12 Looking at the cautious task time, facing the current situation where it is difficult to support oneself and two fists are difficult to defeat four hands, I feel that it is time to turn over some final hole cards.

"Self-propelled fire units have been dispatched, please keep friendly identification devices running continuously, feature change cycle, 1 minute."

"In the current communication environment, the self-owned unit cannot provide computing power from the base host, and it is transferred to automatic mode, so please communicate with the driver in time to avoid accidental injury, over."

Immediately afterwards, the base behind him opened several access channels, and the swarm self-fired unit defense system was launched!

The first to roar out was a low-altitude defense robot carrying four high-energy laser cannons, the main body of which was a sphere, codenamed Demon Eye!

These highly mobile MONOCULUS defenders quickly took to the air, releasing a scorching wave of heat from the jets around them, entering a high-speed operation state, overwhelming the sky and quickly supporting the entire melee battlefield.

They line up in scanning formations with each other, using high-energy laser scanning equipment to explore the surface, and as soon as they spot a stealing biochemical beast, they can quickly clear those enemy units that pass through the near fire net.

Immediately following the departure of an air unit like the MONOCULUS Defender from the base was the Federation's full-fledged ground self-propelled fire regiment.

The Ground Guards Regiment contains a large number of different types of self-propelled fire units, the most conspicuous of which is the DAE903 heavy self-propelled fire fortress, codenamed Longji.

Heavy armor, several multi-mounted electromagnetic guns and rapid-fire laser cannons for close defense, and a terrifying self-installed kinetic metal storm have armed the entire fortress to the teeth, and it has a strong ability to destroy and intercept the enemy.

Other ground units were quickly rolled out, building a three-dimensional battlefield defense system with the Eye of the Air, while improving the communication quality of units in the current environment.

"The ability of this close defense corps is really strong!"

With the blessing of the Close-in Defense Corps, 12 saw that the communication quality of the Ghost Thorn Armor had changed from poor to normal, and the increased channel bandwidth was enough for the base host to share more computing resources.

"Please ask the driver to ensure the logistics and transportation channel of Longqi Fortress."

"The estimated support time of the Close-in Defense Corps is 13 minutes."

The Guards Corps, which was deployed in formation, began to show its powerful firepower, and the Dragon Fortress, as an important firepower output unit, was also consuming its own supplies at a terrifying rate while frantically outputting firepower.

"Coming, this battlefield, I'm afraid I can't find a porter with higher speed than me, right?"

Not to mention, the huge and flexible Ghost Thorn armor is quite suitable for logistics and transportation tasks, and the Ghost Thorn takes advantage of its speed and strength, and provides logistics and material transportation for those firepower units one box after another.

With the high-level combat command capability of the Biochemical Corps, those automatic transport vehicles that move relatively slowly and have weak defenses will naturally not be let go, and the two sides of the battle that have thoroughly studied each other are not fuel-efficient lamps, and the logistics and transportation units are naturally the key targets of the enemy's positions.

Therefore, the small striking surface, high-speed and flexible ghost thorn armor shows its advantages in logistics and transportation, not to mention the cooperation of self-defense fortifications and heavy units, which makes it easier for 12 to perform such a task.

It's just that the strong close defense corps of the base is not enough to recover the terrifying order of magnitude superiority of the biochemical corps, and the already scarce fire defense resources of the base do not affect the corps to provide effective fire cover.

Under heavy enemy fire, the Close-Guard Corps quickly lost units.

Ten minutes passed in the blink of an eye, and the ghost thorn armor that had been a logistics unit for ten minutes was once again put into close defense combat.

As far as the eye could see, it was full of wreckage left by the self-detonation of the Guards Corps units, and the sky was constantly covered with black smoke from the MONOCULUS that had been hit and damaged its flight function, or it was exploded in the air by concentrated fire, or it fell to the surface, producing a strong detonation.

"The last sixteen minutes! I can do it! base, detonate all minefield mines in three minutes! ”

The 12, who was constantly shuttling through the defensive positions, felt more and more difficult, the number of enemy troops was increasing, the close defense corps had been lost, and he alone could not resist so many enemy units, so he had to create a gap for the enemy to advance, so that the close fire force could quickly deal with the enemy troops who had reached the safety range.

Three minutes later, the Guards Corps was wiped out and all destroyed!

"The detonation wave has been released."

The Ghost Thorn Warframe's vibration detection system detected several specific sets of vibration frequencies coming from the base's underground, and a clear sense of vibration was fed back to 12's brain.

"Bang!"

The entire minefield was alarmed by this detonation signal, and the ground began to boil as if it were boiling, and the whole ground shook violently.

The ghost thorn is still trying his best to carry out the close defense mission, and the earthquake from the minefield cannot reflect his actions for the time being, so he can use the super buffer device of the battle armor to compensate for feedback.

The detonation of the minefield, coupled with the dropping of the last wave of high-explosive mines at the base, finally temporarily blocked the subsequent influx of biochemical beasts.

The near-fire defense network quickly adjusted its target and began to kill the enemy troops who had crossed the safety range, buying another precious three minutes for the evacuation mission.

At this point, there are only 10 minutes left in the whole mission!

"Base, how much combat capability is left in the fire system!"

"The integrity of the base's defensive fire system: 53%, the level of material reserves: low."

"Is there only half of the fire system left?"

12's brows began to furrow, just now the defensive firepower of the base dropped again, only half of the automatic weapons were still functioning normally, and the rest of the units were down for various reasons.

This also means that the defensive pressure on the base will increase geometrically.

The most obvious thing is that the defensive firepower of the base can no longer compete with the enemy's firepower, and the fierce Divine Biochemical Legion in the distance has narrowed the encirclement one step further.

Or rather, they have already begun to launch a general offensive!

Because whether it is the base firepower or the air fleet, the supplies have been exhausted in these fifty minutes of high-intensity combat.

The battle situation has reached its most critical moment!

12 retreated to the base, watched the waterfall of battle damage reports swipe across the interactive screen, and watched the Federation fighter plane in the sky crash silently, and finally self-detonated into the most brilliant light cluster.

The shock wave and fire of the explosion dotted the entire battlefield, and the enemy's main force had stepped into the minefield of the aftershock.

It's a sea of cyborg beasts, heading for the Federation base where 12 is located!

"Detonate Ivan! Destroy the continental shelf! ”

"Permission verification has passed, and the detonation message has been transmitted. The continental shelf is expected to be destroyed, and the maximum magnitude is expected to be 12.7 magnitude, and the current surface will be completely destroyed, and the base will be structurally damaged. Drivers are asked to be prepared for impact. ”

Before the cold message of the system could be realized,12 he had already seen the seismic monitoring data rise at an exaggerated rate, informing him that an unusually devastating earthquake was coming.

Deep underground, the detonation of the Great Ivan crustal concussion weapon group buried at the stress point of the continental shelf triggered a series of chain reactions, and the crustal structure under the federal base quickly collapsed due to the release of stress, and the terrifying and explosive force quickly reached the surface from the depths of the earth.

Destruction, coming.

The entire battlefield began to boil, and the extremely strong surface tremors made it necessary for the ghost thorns in the base with earthquake resistance to firmly fix themselves, not to mention the biochemical legions that were charging on the periphery?

A large number of cyborg beasts were thrown directly into the air by unimaginable vibrations, and then fell to the surface fiercely, like fragile and helpless small beans on a sifting machine.

Then, the mountains and rivers shattered, the heavens and the earth cracked, and countless surface cracks pierced the entire battlefield, mercilessly devouring the biochemical army.

The chain reaction of stress relief from the ground continues, and the resulting surface magnitude continues to rise, and the raging magma squeezed by the earth's crust is pushed to the surface at supersonic speeds through open crustal channels.

These magma burst out of the cracks in the surface of the earthquake area, directly through the clouds, and directly turned the heaven and earth into a lava field.

The monolithic federal base was squeezed from the surrounding surface, and the internal structure emitted an overwhelmed noise.

"The intact rate of the underlying structure of the base: 12%, the outer layer of the underground has been completely destroyed, and the base as a whole is sinking, with a settlement height: 31 meters."

In such a terrible geological disaster, the federal base is struggling to support itself by relying on its own structural strength, but the surrounding surface has been completely liquefied due to the terrifying earthquake, causing the main body of the base to settle rapidly.

From the air, the huge Federation base that had been standing on the surface of the earth was tilted and was rapidly sinking underground, and the oval-shaped base cover defense layer was almost no longer on the surface.

"The last two minutes! Detonate the underground part of the base! Fight against surface pressure shocks! ”

In desperation, 12 used the same methods used to deal with the Biochemical Legion to fight the earthquake, and the explosion under the base, which was clearly felt, slightly slowed down the settlement of the base.

"Blast the protective shell! Tissue liquefaction surface masking! ”

As the base settles, the surrounding liquefied soil and the magma flowing on the surface at this time are flowing towards the low point of the base, quickly burying the entire base, and I don't want to find a way to solve this problem, so that the entire base sinks into the ground and is swallowed up by hundreds of millions of tons of soil and magma, let alone evacuate?

The order was given, and the protective outer layer of the entire federal base began to detonate in an orderly manner, blasting away the spreading soil and magma.

This is the last resort, and in the endless blasting, the mission time limit is finally zero.

"The retreat is complete, the escape ship is being ejected!"

The remaining shield in the center of the base opened, and an upright starship carrying a ghostly stabbing armor instantly sped into the air, quickly fleeing the terrifying surface of the devastating earthquake.

Before the 12 had time to look back, the entire base had been swallowed up deep underground, and soon after, the surface rose again, then retreated.

It was the last self-detonation at the federal base.

The escape ship arrives in space orbit, and the familiar warp scene in front of you quickly turns pure white.

"The defensive task has been completed, and the assessment and scoring ...... are underway"

After an hour of fierce battle, 12 of the three consecutive missions were extremely exhausted, and they fell asleep without waiting for the results to come out.

It's really, so tired.