Haloid: Master Chief x Samus

Chapter 1: Up Creek Without A Paddle

In the middle of a grove of trees lies a half-ton armored soldier, the Master Chief, humanity's greatest hero. The Master Chief was sent on a mission to check out the source of a signature from a long-dead, intelligent race known as the Forerunners, but as he wakes up now, he will come to realize how lost he really is.

He gets up on one knee and takes a look around to get a sense of his environment, realizing that this wasn't the forerunner facility he was just at mere moments ago.

"Sierra one-one-seven to blue team," Chief inquired before repeated, "Blue team, respond."

He got to his feet. It was at times like this he missed having Cortana around to scan anything to try to get a clue of where he was, but he was still a highly trained soldier, so he knew what to do in this situation. He looked around in hopes of finding some high ground to get a look at the terrain.

He found himself climbing over tree roots and hopping over rocks for a couple of kilometers until he suddenly stopped. He felt as if something was nearby and got behind a tree to be in cover; it wouldn't be the best decision to pick a fight without a weapon, or at least not when in unknown territory.

Chief was would take quick glances at his motion tracker while keeping his eyes on his surroundings when suddenly, a red blip appeared on his motion tracker. The blip was slowly moving towards his position. He decided to try to peek out from behind the tree just a tiny bit to see what he was up against. He knew it wasn't another UNSC soldier or else the blip would've come up yellow.

Chief barely had his eyes out past the tree when a missile just barely went by his face causing him to quickly jump back behind the tree. He noted that the impact of the missile left an icy crater.

"Target is confirmed hostile," Chief thought to himself.

He had to think on his feet because the motion tracker showed the hostile was still nearing his position. He was trying to look around for anything he could use as a weapon. He didn't get a visual of the foe so he had nothing to base a strategy on, so he couldn't decide if a head-on attack would work or if he should try to find some way to get the drop on the target, if even possible in the little time he had.

~~~

Though uninhabited in this modern-day, there was someone here on this planet with an actual purpose; her name was Samus Aran, the galaxy's most notorious bounty hunter. She wore a bright orange suit with a blue excess bit spanning it, with a green visor to top it all off. The reason she's here is that this was once a Chozo perfected world, and she figures that the Chozo may know more about them than anyone.

The X parasite was a danger to the whole universe if left unchecked. The metroids were the X parasites' one predator, but Samus had wiped all of them out, not knowing of their purpose, so now she had to fix her mistake.

Once an X parasite latches itself onto its prey, it would take complete control over its body, usually inflicting some mutations and causing aggression. Eventually, the parasite will kill its host and leave the body with a copy of the body's genetic information, which can be used to mimic the victim.

The fact that it can blend in and infect people so effectively makes it obvious why it's such a threat. So, she had been going through areas where she expected to find them hiding or whatever they did; they're still such a mystery.

Samus noticed a green blur moving in with the rest of the foliage and raised her arm cannon to take aim when she finally spotted it, it had gone behind a tree and hadn't emerged from the other side. She knew it had most likely known she was there now so she kept her arm cannon aimed at the area to be ready if it had decided to make a surprise move as she was carefully walking over.