The caves were a nightmare. Terrible visuals even with low-light on. Legion in every corner. Nathan was exhausted. He checked his mission clock. Two hours and 15 minutes into the op. Nathan checked his Pip-Boy.

"Clear!" he shouted.

"Clear!" Hayes shouted.

"All Clear!" Hsu shouted. "Regroup on me." Nathan turned and began walking towards Colonel Hsu.

"How long is it going to take to clear this place out, boss?" Jenkins asked Colonel Hsu.

"I have no idea. These caves are too big and numerous for me to get an accurate estimate. We could be here for days." Hsu groaned as he rubbed his eyes. The low visual was messing with him too. He held a flashlight up to a faded map. Legion had the courtesy to mark it up for the NCR. There were red marks, all in Latin, scribbled onto the map. Giant X's and squares filled the map.

"What the hell is that?" Hayes asked and pointed at the desk below the map. There was a Yao Guai skull and a broken helmet next to it. Nathan grabbed the helmet. Visor seemed similar to that of the Elite Riot Gears. But the visor was a T shape rather than two eye holes. Power armor? Too light. Combat armor? Too Heavy.

"Never seen it before. Hale hold onto it for now. We'll regroup with Bravo and tell them our situation." Hsu said.

"Yes, sir." The squad responded. Hale held the helmet in his hand then placed it into his pack.

The cave winded and curved to the right. Suddenly the visuals were greatly improved and the cave opened up into a cavern. Nathan blinked and the low-light turned off. It was a storage facility of sorts. There were Pre-War Planes. Hunks of Power Armor, crates of God knows what. But, also there was light. The light allowed for Alpha to see all the crimson in the cavern.

"This is bad." Hsu muttered. "That's Power Armor that the Centurions are wearing. They're breaking Caesar's law. Shit, this changes everything."

"What do you mean?" Jenkins asked.

"It means that the Legion may be getting an upgrade. They're breaking off from Caesar's combat doctrine and moving towards one that allows for high-end tech and cutting edge weaponry." Hayes cut in. Nathan looked into his scope. There was a Centurion speaking to another, donning Power Armor. I've never seen that kind before. It was black, sleek, and worst of all. It was not bulky at all. The only thing defined the armor as power armor was the huge energy core that sat on the users back. The helmet was the same T shaped helmet that Nathan had picked up earlier. The centurion turned in Nathan's direction. Oh shit. He pointed at Nathan. Oh shit!

"Move!" Nathan yelled as he leapt for cover. He didn't know why he did that. It was impulsive. But that impulse saved his life the opening exploded and collapsed.

"Everyone all right?" Hsu grunted as he coughed. "Everyone check in."

"Hayes here."

"McGee here."

"Fitzgerald Here."

"Hale, here."

"Jenkins?" Hsu called out. "Jenkins!"

"Fuck, he must be on the other side." McGee murmured. There was a screaming sound. Nathan tapped his earpiece. The antennae extended on his helmet.

"Jenkins! Sit-Rep now!" Hale shouted.

"Lt! You got to get me out of here!" Jenkins begged.

"Where are you?" Hale asked.

"I- I don't know!" Jenkins yelped. "There was an explosion, I fell backwards and I landed in the cavern somewhere but I don't recognize any of it. The lights turned off immediately and—"

"What?" Hale inquired. "Dammit! Focus! What is it?"

"There's something here." Jenkins whimpered. There was a clicking sound. Jenkins screamed and there was gunfire.

"Jenkins!" Hale shouted. He ran to the wall and pounded on it. Hale began moving rocks. "Jenkins!" the feed went dead. Everyone had heard it. Hsu was pale.

"We need to get out of here right now." Hsu said calmly.

"What about Jenkins, sir?" Fitzgerald asked.

"Whatever is in there, we don't want to see." Hsu responded calmly. Hale punched Hsu in the jaw.

"Hale!" Hayes growled. Nathan didn't care.

"Hayes! It's all right." Hsu said as he stood up. "Hale's right I needed that. I heard that clicking sound once before. I was a Captain then, we were exploring the Mariposa research facility after the Brotherhood had cleared out. The room's door locked me and another soldier in one room. The rest of my squad were locked in another. I heard everything that happened behind that door. There was that clicking sound then gunfire, screams. Then silence. What killed me was the silence. I found another way into the room, but by then it was too late." Hsu finished.

"What happened?" McGee asked.

"My squad was dead. They were torn to pieces by something." Hsu responded. Nathan took his carbine from the floor.

"Whatever it is, it's got Jenkins. If you want to leave, sir. That's your call. But with all due respect, I'm going after Jenkins." Nathan explained.

"I'll go too." Fitzgerald exclaims. McGee nodded. Hayes stayed silent. Hsu held his chin with his index finger and thumb.

"No, Lieutenant. We're all going together." He said. "But, we need to find another way into the cavern. Hsu held his flashlight up. "Let's head back to the map."

The map was no help. With the Latin scribbled on all over it, it was essentially useless. Nathan take his helmet off. He sighed. Nathan reached for his lighter and flicked it open. He held his hand to the cigarette and heard it. Click. Nathan dropped the cigarette and leapt from the table he was leaning on. No red? Oh shit! The helmet! Nathan had left it on the table. He fell on his back with his pistol up, ready to fire.

"What is it?" Hayes asked.

"Listen." Hale muttered. Click. Click. Click. Hsu was pale again. He drew his sidearm. Nathan stood up and grabbed his helmet from the floor.

"Legion?" Hayes asked. The squad crept towards the center of the room. Backs facing one another.

"Can't be." McGee responded. "Not unless Legion has seriously stepped up their game."

"Back to back!" Nathan shouted. The squad now had their backs against each other. Nathan tapped his helmet. It leapt straight for him. The Deathclaw. Oh fuck! Lights out.