You must know that Ye Fei's Dragon Blade Special Forces Combat Set has stealth attributes, and at the same time that Ye Fei entered the stealth state, he quickly rushed towards the top.

When he rushed up to the fourth floor of the ********, he saw several NPC soldiers next to him, guarding the staircase with weapons. They didn't rush down because they also have artificial intelligence and are also afraid of death.

On the working platform, there are also three combat mechs. Two of them, the Stinger Type 1 Combat Mecha and one Aegis 2 Battle Mech, were all on standby. Fortunately, Ye Fei and He Hui didn't rush up forcibly, otherwise the two of them would be two moving live targets, and they would definitely be killed on the spot.

When Ye Fei turned on his stealth skill and rushed across the stairs, those NPCs also felt a little strange. However, they couldn't see Ye Fei, so they just wondered.

"Hey, Kanu, did you feel anything just now? It was as if something had passed through the staircase. One of the soldiers in camouflage combat uniforms said.

"Charlie, I think you're hallucinating, right? How could anyone have passed through here? It must be the sea breeze, or the air currents, or something. I don't know how many enemies are coming down there, so let's defend tightly and wait for the reinforcements to come. The other NPC soldier named Kanu said.

"It is estimated that it is a spy sent by Dragon City again, I heard that Boss Zero is ready, I don't know, when will I attack Dragon City?"

"It's a military secret, how can we know about it."

……

Ye Fei didn't pay attention to the conversation of this group of NPCs, and quickly rushed up the stairs to the upper floor, after all, his stealth time was only 30 seconds. After 30 seconds, he will be completely exposed to the enemy's vision.

When Ye Fei rushed up to the fifth floor, he found that he had come to the top of the ********. I saw a row of Stinger 1 battle mechs placed next to it, and several staff members were filling it with a blue energy crystal. It turns out that these battle mechs have no power energy, and must be filled with energy crystals mined in the mines.

At this point, the machine that collects energy crystals has stopped running, but there are still many energy crystals that have been mined. While the staff was filling the energy crystal, there were several soldiers holding AK47 and M16 guarding them, and their faces were also full of anxiety and kept urging.

"Hurry up! We're going to get out of here as soon as possible! ”

"This place has been exposed, the boss will leave here for two hours, and a large transport ship will come in a moment."

"Damn, the people down there were attacked by inexplicable people, and the boss judged that it should be someone from the side of Dragon City."

……

There were still five seconds of stealth time left, Ye Fei brought out the Star of Hope and decisively turned on the grenade mode. The crosshair expanded instantly, Ye Fei's finger was pressed on the trigger, and with a loud explosion, several grenades slashed through the air one after another beautiful tracks.

Those guys couldn't have imagined that a person would come out of the air, and that it would be a grenade.

Boom Boom!

The small mushroom cloud created by the explosion rose into the sky, and the guys were blown away. You must know that the grenade of the Hope Star has an additional knockback effect, many people were blown out, and they did not die on the spot, Ye Fei switched to assault rifle mode and kept killing.

In fact, there were not many enemies on the fifth floor, only a dozen, and they were instantly stunned by the sudden attack.

While Ye Fei relied on his position to dodge the enemy's attacks, he turned on the point kill mode, giving priority to killing those NPC soldiers, as for those staff, there was no threat to him.

Killing the enemy on the fifth-floor platform, Ye Fei suddenly heard a burst of messy footsteps coming from the staircase behind him, and it was estimated that the enemy below already knew that something was wrong and came to support.

Ye Fei hurriedly retreated, his body half-squatted on the ground, relying on the cover of the mecha, and began to continue to kill those enemies who rushed up.

The muzzles of the guns spewed tongues of fire, and as soon as the soldiers rushed up from below, they were all headshots, all of them. After all, those guys can't move their places, and it's very easy to blow their heads off.

Headshot!

Headshot!

Headshot!

Bite! Successfully kill a soldier and reward 150 XP and GP points

Bite! Successfully kill a soldier and reward 150 XP and GP points

Bite! Successfully kill a soldier and reward 150 XP and GP points

……

The experience and GP point rewards swiped the screen again, and at this time, golden light flashed from Ye Fei's body, and his state was full in an instant, and he actually upgraded.

Since the third level of the last Clan Clan Championship reward, plus the current upgrade, he has reached the level of colonel, you must know that the experience of upgrading now is very huge, after all, Ye Fei is not the kind of level-rushing madman, but his upgrade speed is still very perverted.

The NPC soldiers didn't dare to come out after leaving a corpse at the top of the staircase. However, Ye Fei was not worried about these soldiers, but worried that the battle mecha below would rush up, and it might not be fun at that time.

Ye Fei quickly ran towards the wooden box next to this, because Ye Fei had already seen those guys filling the battle mecha with energy crystals just now. When he climbed up the workbench to the huge wooden box, he saw that it was full of black stones. In the middle of those black stones, there were many egg-sized blue energy crystals that shimmered with a faint halo.

This should be the quest item.

Ye Fei casually grabbed an energy spar and stuffed it into his backpack, and at this time, there was a system prompt in his ears.

Bite! Obtain Power Crystals.

Bite! The next objective is to activate the Reaper mecha and destroy the ********.

At this moment, Ye Fei saw that the task prompt had actually changed, and there was a blue point of light jumping on the electronic map. I didn't pay attention to it just now, but after the system prompted, Ye Fei found that among the row of battle mechs, there was a pure black battle mech.

This mech is clearly different from other mechs. First of all, its mecha shell is pure black, like graphite, as if it can suck in all the light around it. What surprised Ye Fei the most was that this mecha had a streamlined fuselage, and from a distance, it looked domineering and murderous.

The situation is critical, and Ye Fei doesn't care about it, but if you think about it, if you can open the mecha, this mission is not for nothing, it will definitely be refreshing.

The cockpit of this mecha was open, and Ye Fei flew into it.

The moment Ye Fei drilled into the mecha, he heard the sound of the system prompt in his ears again.

Bite! Whether to activate the Reaper mecha.

Are you sure!

Ye Fei decisively chose to be sure, at this time his hand pressed on a green button, the hatch of the Death Mecha slowly closed, and various indicator lights became shining.

Just as Ye Fei was leaving, when Ye Fei activated the Grim Reaper mecha, another group of NPC soldiers rushed up and fired decisively at the Grim Reaper mecha......