The machine gun cannons had an extremely high rate of fire; any Zergling that couldn't evade would be instantly shattered.
However, the Zerg's common divine skill, Burrow, allowed the Zerglings to avoid being locked onto by the machine gun cannons.
But it also halted the Zerglings' advance into the Base.
Lin Fan didn't want any Zerglings to die; if they were just injured, they would recover quickly, and even if severely wounded, they could recover quickly once they returned to the Creep.
So, he would be the one to dismantle these two towers.
On the roof of the building Lin Fan was on, there were many small, container-like collective air conditioners. The electronic eyes of the machine gun cannons were currently fixed on the ground, leaving the area above a defensive blind spot. This allowed Lin Fan to at least destroy one machine gun cannon first to reduce the firepower.
Lifting a several-ton collective air conditioner over his head, Lin Fan hurled it towards an automatic turret.
The automatic turret's electronic eye scanned the sky, detecting an anomaly, adjusted its gun barrel height, and fired, blowing up the collective air conditioner in mid-air, with only some fragments falling down.
However, what the automatic turret hadn't anticipated was that another collective air conditioner followed closely behind the first.
With a bang, this automatic turret was smashed and then exploded violently.
The other automatic turret then adjusted its priority, aimed at the sky, and locked onto Lin Fan to suppress him with firepower.
However, at this moment, all the Zerglings near this turret emerged and continuously attacked the wall beneath the turret.
The Zerglings' sharp claws tore through the high-quality concrete as if cutting tofu, and the thumb-thick rebar inside was bitten through in one go. Dozens of them working together quickly demolished this section of the wall, causing the automatic turret above to collapse and explode on the ground due to the building's destruction.
With both automatic turrets dismantled, the Zerglings scurried into the Base's interior. The gate, originally connected to high-voltage electricity, had become useless; they burrowed inside through the demolished wall.
In the empty parade ground, only a few dozen soldiers had just emerged from the cargo elevator. Although they carried grenade launchers and even had five snipers among them, they were intercepted by the rushing Zerglings before they could even climb to the rooftop.
The power of a grenade launcher was around Tier 2. If facing thousands of Zerglings, it could cause maximum damage, with almost one grenade crippling several Zerglings. But with such a large area and the Zerglings getting close, if those soldiers dared to pull the trigger, they would be blowing themselves up instead. And the Zerglings would Burrow or jump away.
As for the snipers, they were even more frustrated. These specialized soldiers, who required a stable environment, not only had a slow rate of fire but also had extremely heavy rifles that drained their stamina. In close combat, they could only be used as sticks.
These soldiers from underground had originally come up with grenade launchers and sniper rifles after hearing about the situation above ground, but once they arrived, they had no cover whatsoever. As fire support, they could only frustratingly become food for the Zerglings.
Lin Fan came over and picked up a sniper rifle. This wasn't just any sniper rifle; it was a barrett. With an extra-long barrel and using 18mm armor-piercing rounds, it was an extremely powerful anti-tank heavy weapon.
The damage of the barrett almost reached Tier 3. Any Zergling hit by a single shot would be turned into a mangled mess, with body parts splattering everywhere.
"Cut the cargo elevator cables."
After Lin Fan gave this order to the Zerglings, he went to the Base's Armory, where there was engine oil for vehicles, usually prepared for incoming helicopters.
After opening the Armory, the Zerglings carried the oil drums towards the cargo elevator, filling it with oil drums.
Lin Fan also took a box of fragmentation grenades from the Armory, then used steel wire to pull the pins, tying them to the cargo elevator door. As soon as the cargo elevator opened, 5 seconds later, 1000 meters underground would become a Hell of Fire.
The air underground was thin, so ventilation ducts and collective air conditioners were needed to improve air quality. These airflow ducts could rapidly transport flames to every corner of the underground Base.
Neither the Blacklight Virus test subjects nor the Blackwatch soldiers would have any chance of surviving.
"Consume all corpses, transport the heavy weapons from the Armory, take as much as you can, then retreat."
Lin Fan then summoned the Overlords hidden in the clouds. The internal cavities of their bodies could transport a large amount of military supplies, giving Lin Fan his own small Armory.
At this moment, a patrolling Overlord discovered three light tanks approaching, escorted by two hundred Blackwatch soldiers with light machine guns.
Lin Fan immediately led the Zerglings to retreat.
And as soon as Lin Fan left the Saint Petersburg Biochemical Research Base, towering flames shot out from the ventilation ducts connecting the underground to the surface. A huge muffled roar, almost echoing throughout Manhattan Island, emanated from 1000 meters underground here.
As one of the wealthiest magnates in the City Center, Tony Stark, also the Super Hero Iron Man, naturally wouldn't allow such a massive event to occur right on his doorstep. He landed at the location immediately after Lin Fan's departure.
Accompanying him was War Machine, piloted by Tony's good friend, Air Force Colonel Rhodes.
"Oh, my God, what happened here?" Rhodes exclaimed in astonishment. Before him was only a glowing red night sky. The biochemical research Base, originally a special institution, had now been reduced to ruins? The Blackwatch Base was top-notch in every aspect!!
Tony tilted his head, sighing, "This looks like an accident, but Jarvis just pulled up the satellite imagery. Hey... guess what I found?"