Efficient

They continued advancing through the passageway, constantly activating their bio-scanners, searching for the psychic users Qin Mo required.

After advancing about a kilometer, a purple marker appeared on their HUDs.

"Psychic reaction detected, target marked," an icy electronic voice announced within the helmet. Grey looked in the direction of the purple marker, controlling his Shoulder Cannon to aim that way, burning a path through the metal walls.

Since there was no possibility of xenos existing within the walls, Grot was tasked with the main assault from behind.

Grot had initially thought he could handle the xenos with just his gravity hammer, but he saw the combat system's analysis of the xenos on his HUD.

The xenos' hand claws were magnified and labeled with a danger warning.

Grot immediately slotted his gravity hammer into the weapon rack on his back, raised both hands, and aimed his scatterlaser forward.

Once again, a large number of xenos swarmed from the end of the passageway. After Grot opened fire, he easily blocked their advance.

The xenos were resilient, but the scatterlaser was too numerous and dense. In the end, only their corpses littered the passageway.

"Still quite a few of these xenos scum," Grot said, raising both hands and waiting for the scatterlaser to cool down.

The heat generated by the weapon's firing was rapidly absorbed by the Energy Engine. Less than a second passed before Grot could unleash his firepower on the xenos again.

"You can just stand there and wait for the gravity shield to crush them," Grey reminded him as he walked.

"I know, but I just like shooting them. Otherwise, why would this power armor be equipped with weapons?" Grot replied with a laugh.

Upon reaching the end of the opened passageway, Grey once again used his Shoulder Cannon to clear the way.

Grot continued to sweep away the surging xenos.

It felt more like a stroll than a battle; the two could even chat.

"Weren't the brothers egging you on to ask the Legion Commander to name the power armor?" Grot asked. "What's this power armor called?"

"Power armor. The power armor's name is Power Armor. That's what he said," Grey replied indifferently.

"But our power armor should be different from regular soldier power armor, right?"

"That's what I said too. Then the Legion Commander got annoyed with me and just made up a name, calling it Terminator."

"Terminator? Sounds alright."

After proceeding downwards or left and right for half an hour, Grey saw that he was only ten meters away from the psychic reaction marker.

When the Shoulder Cannon fired again, expending two percent of its seventy percent energy, a path leading to an underground cavern was melted open.

The enemy already knew they were coming and had prepared for them here.

As Grey scanned the entire underground cavern, he saw large groups of rebel soldiers hiding behind cover, aiming their lasguns or projectile weapons at him.

In a corner of the underground cavern, one of their own soldiers, wielding a xenos longsword, was weakly fighting off two rebel infantrymen.

"Albert." Grey recognized the soldier. He remembered the time he and Qin Mo had rescued Albert and Duncan.

Albert's fight with the rebel infantrymen was more like an execution; he was being suppressed unilaterally, had lost an arm, and was covered in wounds.

The focus of this mission wasn't to rescue Albert, but Grey was willing to save him, provided he completed the mission Qin Mo had given him to capture the psychic users.

The rebel psychic users stood behind the rebel infantrymen, with another psychic user beside them.

Observing them at close range now, Grey realized the psychic reaction marker wasn't just one, but two overlapping markers.

"Fire!" one of the psychic users roared, giving the order.

A barrage of beams and projectiles shot towards Grey and Grot. They reacted calmly amidst the hail of gunfire.

Grey raised both hands, while Grot deactivated his gravity shield and drew his gravity hammer from behind.

After Grey's scatterlasers fired, the rebel infantrymen and their cover were riddled with holes within two seconds; not even a single intact corpse could be found.

Some might not have been completely dead, but their deployed defenses were certainly shattered.

Grot's jetpack behind him spewed flames backward, and he charged towards the two psychic users at extreme speed.

As he ran, one of the psychic users raised her hand, and a large amount of debris floated up, flying towards Grot and engulfing him, temporarily halting his charge.

Just as Grot was about to break free from the debris, the other psychic user unleashed flames.

"I'm a Terminator! Bitch!" Grot roared from within the flames. His jetpack behind him unleashed its full power, allowing him to quickly break free from the restraint and swing his gravity hammer fiercely towards the psychic user's head.

As Grot smashed one of the psychic users into a flat pancake, Grey had already raised his left hand, telekinetically pulling the other psychic user towards him and gripping her neck tightly.

The integrated psychic suppressor within the power armor took effect, rendering the psychic user Grey was choking utterly defenseless. She could only weakly tap his arm plating, indicating she couldn't breathe.

The battle ended here.

Grot ran to Albert's side to check on him. After a Bio-Scan, Albert's body outline was highlighted, with a line of text floating at the center of the outline.

Severe blood loss, survival chance 0.

"He's dead," Grey said.

"Yes," Grot nodded, his gaze falling on Albert's face. "He had a smile on his face. I guess he saw us slaughtering the rebels."

Grey silently released his bio-scanner, locating the enemies who weren't completely dead yet and blew their heads off with his psychic power.

Once there were no living people left in the underground cavern besides the two of them and the captured psychic users, Grey turned to Grot. "We can't leave his body here. Take him back with us."

The two hadn't cleared out all the xenos on their way there, and by the time they started their return journey, the passageway was already swarming with snarling xenos.

Grot took the lead this time, carrying a corpse and clearing the path with his Shoulder Cannon.

As beams shot from the Shoulder Cannon, the xenos in the passageway ahead instantly turned to ash, a far more efficient method than using a gravity hammer or a shotgun.

No one spoke on the way back.

Both Grey and Grot simultaneously pondered that perhaps the only difference between themselves and ordinary soldiers was that they wore Terminator Power Armor.

Without this power armor, they would have died countless times already.

Grot, who appeared reckless but was actually a thoughtful person, began to worry about the soldiers on various defensive positions who only wore standard power armor.

Grey, on the other hand, was considering whether he should undergo more augmentations, so that he could still maintain combat effectiveness even without Terminator Power Armor.

After exiting the mining shaft, the two boarded a transport and returned to the fortress garrisoned by the 47th Regiment.