Hunt the Truth

Hunt the Truth is a promotional marketing campaign for Halo 5: Guardians. It consists of a series of weekly episodic audio logs providing backstory and information regarding John-117's history and involvement in the Halo 5: Guardians campaign. New audio logs will be released at huntthetruth.tumblr.com each week until E3 2015 on June 16, 2015.

Origin
On March 19, 2015, Frank O'Connor tweeted a link to huntthetruth.tumblr.com. The page had a countdown to March 22, 2015 at 1:00am UTC and an image of a bullet with a "TRAITOR" engraving. On March 20, a video was posted showing the bullet being fired from a sniper rifle and hitting John-117's helmet, making it shatter.

When the countdown ended, the bullet video was updated with a new version that allowed a viewer to "drag" the video backwards or forwards, slowing it down enough to see several words engraved on the bullet: SON, ABDUCTEE, VICTIM, ORPHAN, RECRUIT, SOLDIER, WARRIOR, ALLY, HERO, SAVIOR, and TRAITOR.

Episode 00: Primer
"What began as a high-profile hero story quickly turns into a full-blown investigation. Sources claim they know the “real Master Chief”: The boy, the soldier, the hero…the traitor? But who’s telling the truth?"

In Benjamin Giraud's first audio log, he gave a brief history of himself and stated that he had been tasked with creating an in-depth profile about the Master Chief.

Episode 01: A Hairline Fracture
"Master Chief was born in the metropolis of Elysium City. Then known as John, he grew up like any kid in the Outer Colonies. Childhood playmates and school teachers share charming stories. But what happens when a single document throws everything into question?"

Benjamin interviews people who know of John's childhood on Eridanus II. He finds Deon Govender, who used to teach John in Elysium City Primary Education Facility Number 119. Benjamin also interviews John-117's childhood friend Ellie Bloom, who tells him about how she used to play with John and another girl named Katrina. He also managed to find a victim of the Insurrection, Thomas Wu. Benjamin later finds a document stating that John died in 2517 at age six, contradicting all the other information Benjiman had discovered.

Trivia

 * Benjamin Giraud is voiced by Keegan-Michael Key.