AN: I just saw the trailer for Halo 5, and I CAN'T WAIT! Here's my take on what might happen. Sorry if I get a few details wrong, but if it was an actual account, it wouldn't be called fan fiction. I'll do my best to get as many details as I can correct.
Master Chief's POV
I've been with Cortana for 8 years, longer than most AI's last. Some don't even make it to 4. But when you've had someone close to you for that long, you don't just know them...you feel them. When Cortana was saying goodbye to me, after blowing the Didact up...after she sacrificed her life so I could live...I don't know how to explain it, but I know...I feel like she's still alive, somewhere in this vast universe.
And not a damn thing can stop me from finding her.
I'm a Spartan with a cause. No orders given to search for her. This is my job now. This is my mission. To find the only other being that made me feel less like the machine I was bred to be...and more like the human I'm supposed to be.
They say the most dangerous thing is a man with nothing to lose. I beg to differ.
The most dangerous thing is getting in between a Spartan and his goal.
My advice?
To the UNSC, to the Covenant...
Stay out of my way, unless you aim to lay dead behind me.
I think it's fairly obvious to say that this is intended to be a teaser for the following chapters. It's my first shot at a video game fanfic, so I know it's not the greatest. Let me know what you think, or if you want me to write more chapters.