The captain and the others bombarded for about a minute before they stopped attacking.

At this time, the exit of the underground passage was already crowded with rubble and metal debris, and it was difficult to find a gap.

The captain was still a little uneasy, and he immediately rushed up and stepped on it with his foot. He then told the soldiers to dismantle the large structures around them and throw all the parts into the passage.

With all this done, the captain hurriedly ordered people to look around for the control system of the gate.

And at this moment, everyone felt the ground under their feet begin to shake, and it felt like ten thousand horses galloping.

As time passed, the tremors grew stronger, and the warriors' emotions became more and more tense.

At this point, the warriors could clearly feel that the group of monsters was approaching the exit.

As the frequency of the vibration became faster and faster, the mood of the warriors became heavy.

Then I heard a loud noise from under the passage, as if the entire passage mouth was shaking.

The monsters pounded wildly at the rubble and metal wreckage, each collision that made the warriors' hearts tuddle.

"Captain! What the hell is this, how can there be so much strength! ”

The movement from the ground was very huge, and the soldiers were shocked.

"Go to a team of people to set up obstacle mines, and you must not let these things rush out." The first captain commanded.

"Yes!"

The warriors responded in unison.

The captain knew very well in his heart that his team would not be able to stop so many monsters at all. Once they were allowed to burst out of the tunnel, not only him and his warriors, but all the humanoids held in the base would be killed.

These dedicated channels are not controlled by the main control room, they have their own control system. In order to keep these monsters at bay below, the first team leader sped up the search control system.

"Captain! We searched all around, and we didn't even see the shadow of the control system! An alien warrior said anxiously.

"Keep looking, we must find it, otherwise not only will we fail the mission, but none of us will be able to escape." The captain said.

"Yes!"

As he spoke, the warrior turned and left with a few men.

The soldiers searched almost the entire first floor of the base, but still found no other control system.

And underneath the passage, the monsters were slamming harder and harder. They seemed to smell the food, and one by one they seemed to go berserk, throwing away the clutter with their claws and striking with their hard horns.

Ten minutes later, the guards noticed that the debris had loosened somewhat.

"Not good! They're coming out. ”

The fighter shouted, hurriedly picking up the heavy pulse cannon and bombarding it.

Hearing his shout, the warriors next to him also raised their weapons one after another.

After a heavy bombardment, another layer of rubble and metal debris piled up, which eased the tension of the fighters somewhat.

Immediately afterward, there was a sudden silence under the passage. The monsters weren't impacting the pile, which surprised the warriors to arrive.

"Second Captain! There seems to be no movement down there! One of the fighters said as he looked at the second captain.

Hearing the warrior's words, everyone held their breath.

"Yes! It seems that there is no movement! ”

"It's, they're not going to be tired, are they?" Several fighters chattered on the sidelines.

The monsters suddenly stopped impacting, making the second captain feel that something was wrong. He immediately activated the clairvoyant scan of the armor, and found that the monsters had not left, and were all crowded behind the clutter.

After about five minutes of waiting, the monsters were still very quiet. And at this time, a strange bright spot suddenly appeared on the battle view of the second captain.

The second captain immediately increased the intensity of the scan, and he found that this bright spot was bigger than the others. And those small highlights next to them seem to be making way for this big highlight.

"Not good! All ready to fight. The second captain exclaimed.

As soon as the second captain's words fell, he saw those debris suddenly slide under the passage. In less than a minute, all the debris blocked at the exit was gone.

Seeing those clutters disappear suddenly, all the soldiers shuddered unconsciously. The warriors hurriedly raised their weapons and stared at the entrance of the black hole.

After a few moments, the sound of debris falling downwards came to an abrupt end. Then I saw the points of light in the battle view begin to move upwards, and they moved very fast, and soon came to the entrance.

"Fire!"

The second captain yelled and immediately pulled the trigger.

Under a volley of warriors, the first wave of monsters was beaten into a hornet's nest before they could rush up.

But there were too many monsters, and they seemed to be unable to kill them all, destroying one wave after another.

"Hive Photon Cannon!"

The second captain yelled.

In the face of such a large number of monsters, the Hive Photon Cannon is the best weapon to attack. Under the attack of the Hive Photon Cannon, those bright spots disappeared at a speed visible to the naked eye.

Soon, the monsters crowded in front were wiped out. But before the alien warriors could catch their breath, more monsters rushed up again.

Fortunately, these alien warriors have been trained in the simulated battlefield of Ties, and their mental qualities are much stronger than those of ordinary warriors.

If they were ordinary warriors, they would have already been scared to the point of weakness in the face of such a large number of monsters, let alone let them take up arms and fight.

"Drop the Barrier Mine!" The second captain yelled again.

Hearing the order of the second captain, some of the soldiers immediately took out the obstacle mine and threw it into the depths of the passage.

Immediately afterward, a loud noise was heard below, and the points of light stopped moving forward. They were all blocked by the powerful force field generated by the obstacle mine, and they could not move forward even a single step.

At this moment, I saw that huge point of light began to move. It sprinted quickly towards the force fields, which were shattered by its violent impact for only a few seconds.

As soon as the force field disappeared, those small points of light began to rush outward again.

Seeing this scene, the fighters all felt their scalps tingle. How strong is the force field of the obstacle mine, it was actually broken by its blow. How powerful this monster was, the warriors couldn't even imagine.

The first captain saw the battle at the entrance of the passage through the synchronized battle view.

At this time, he was very anxious. If the control system is not found to close the gates, the fighters will not be able to resist at all.

And at this time, a thought suddenly flashed in the heart of the first captain.

"Warframe!"

The captain muttered in his heart.

He suddenly thought of the patrol leader just now, and he clicked on the control panel of the warframe. That control panel might be a dedicated control system.

Thinking of this, the first captain hurriedly rushed to the control room. Seeing him leave suddenly, the warrior next to him was a little confused. However, they didn't ask, and followed closely behind the captain of the first team.

"What about the corpse of the patrol leader I killed just now?" The captain asked, looking at the fighters guarding the control room.

"Yes, over there!" A soldier said, pointing to a nearby room.

Hearing this, the captain rushed into the room and rummaged through the pile of corpses.

After rummaging for a while, the first captain finally found the body. He immediately leaned down to take a closer look at the control panel.

There are a lot of strange symbols on the panel, and the captain doesn't recognize any of them. These symbols are all special passwords of the Orcs, and only the elite warriors of the Orcs know them.

The first captain can't control much now, and directly connects his armor's intelligent system with it.

The data stream of the Ice Phoenix Warframe poured into the Patrol Leader's Warframe, and the influx was accompanied by a strong counterattack.

This is the firewall of the Warframe Intelligence System, which will automatically activate if someone intrudes.

It also replicated a large amount of data streams at the moment of being invaded, fighting against the data streams of the Ice Phoenix Warframe. For a moment, an invisible battle began in the armor.

At the same time, the second captain and their side were almost unable to hold on. A steady stream of monsters poured out of the passage, many of which had already rushed into the hall.

"Increase the energy supply of weapons, and you must beat them back!"

Seeing that the monster had rushed out, the second captain roared loudly.

The warriors abandoned the defense of the shield while shutting down the systems they didn't need, and they transferred all their energy to the weapon system.

With the replenishment of energy, the fighters attacked more violently. The monsters that rushed to the hall were quickly beaten to pulp.