The shells fired by the Volcano Cannons were like roaring reapers, carrying a terrifying, bone-chilling presence as they hurtled toward the Defense Force soldiers' positions with lightning speed.
Deafening booms rose one after another:
"Boom, boom, boom..."
"Rumble, rumble..."
It was as if they were about to tear heaven and earth apart.
Yet just as those shells were about to reach the Defense Force positions, less than a hundred meters away, a miracle occurred—they suddenly stirred ripple-like waves through the air before vanishing eerily into thin air.
This phenomenon showed that the Defense Force position was equipped with a massive Void Shield engine, one capable of covering the entire defensive zone outside the entrance to the underground fortress.
As long as they could withstand the enemy's fierce frontal assault and prevent powerful beings such as Astartes Space Marines from breaking into the underground fortress and wreaking havoc within, the Defense Force had no need to worry too much, no matter how ferocious the enemy's firepower was.
"Return fire!"
As Dok watched the endless tide of artillery fire pouring in, along with Astra Militarum soldiers steadily advancing on the underground fortress entrance beneath the tight protection of more than a hundred Chimera armored personnel carriers, he immediately issued the order to counterattack over the communications channel.
"Yes!"
Following the crisp, unified response, the Volcano Cannons within the Defense Force positions were activated at once.
One Volcano Cannon after another spewed furious flames, firing searing shells at the invading enemy with overwhelming force.
In an instant, flames surged into the sky and smoke filled the air, plunging the entire battlefield into a sea of fire and chaos.
"Rumble!"
The Astra Militarum artillery positions were utterly destroyed in a single strike from the Defense Force artillery. Every cannon, missile carrier, and artilleryman perished