The last thing he saw was the blinding blue glow of the Wraith's plasma mortar bearing down on their Mongoose.
The Master Chief slowly opened his eyes and for a few seconds they refused to focus. Once he could see clearly, he looked to his left and saw something he shouldn't be able to see: himself. His body lay face down a few feet away. His first thought was, What happened? Am I dead? Then he remembered driving the Mongoose, the Arbiter on the back. They were trying to get away from the Wraith. It had fired a plasma mortar at them. He slowly sat up and looked around. If he was dead, the Arbiter would be too. He didn't see the Arbiter laying anywhere around; then a low moan came from his left. He looked and his body started to move.
The Arbiter woke up and almost immediately noticed an unfamiliar weight on his back. He remembered being thrown from the back of the Mongoose but he doubted it had landed on him; it didn't feel heavy enough. He moaned and pushed himself up to his knees, but something didn't feel right. He looked down at his hands and immediately saw why. Instead of having symmetrical four-fingered hands like he should have had, he had asymmetrical five-fingered hands. He turned over into a sitting position and looked the rest of him over. He wore iridescent green armor. It looked identical to what the Spartan wore.
The Master Chief was so preoccupied with trying to figure out why he could see himself, he just now noticed what he should have noticed almost immediately. His knees bent forward, his hands had four fingers and he wore the ornate silvery-gold armor of the Arbiter. He looked over at what had previously held his attention and asked tentatively, "Arbiter?"
the Arbiter nodded then asked, "Spartan, why am I wearing your armor and you mine?"
"I wish I knew, but I don't think the armor's the only thing I'm wearing that's yours."
"Are you trying to say that I've become human?"
"Essentially yes."
the Arbiter narrowed his eyes and leaned towards the Chief. "I am not human!" he said exasperated
"But right now you are," the Chief folded his arms across his chest. "I'm not happy about being an elite either, so until we figure out how to reverse this, deal with it."
the Arbiter's frustration was quickly mounting mostly because he'd apparently been transformed into a human, however physically impossible it seemed. He wanted to figure out what had happened and more importantly, how, But he couldn't do that sitting here, so he attempted to stand and almost immediately fell over.
"Problems Arbiter?" the Chief smirked
the Arbiter growled at the Spartan and tried again and once again, fell. The Arbiter was effectively pissed off now and let out a loud, frustrated yell. He'd not yet adjusted to his new human center of balance and so couldn't do the seemingly simple task of standing up which immensely annoyed him, however the Chief found it mildly amusing.