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This article is about the first campaign level of Halo 5: Guardians. For the Spartan-IV fireteam, see Fireteam Osiris.
Fireteam Osiris is dispatched to recover the UNSC's most wanted criminal: Doctor Catherine Halsey
Fireteam Osiris is dispatched to Kamchatka to retrieve Doctor Halsey from Jul 'Mdama while his Covenant fight the Prometheans.
Fades into Dr. Catherine Halsey in an underground facility on Reach. Cuts to Halsey walking toward a door. As she enters, she places her journal on a nearby table. She proceeds to take out a data storage unit, taking it to a terminal.
Camera pans to Cortana awaiting transfer, switching over to a smiling Halsey.
- Halsey: "Once this is over... after all I have done..."
Halsey proceeds to transfer Cortana into the storage unit.
- Halsey: "They'll order you to kill us both."
Fade to black
- Lasky: "Fireteam Osiris, over the last 72 hours, five colonies have experienced..."
The camera shifts and pans up to Jameson Locke's face.
- Lasky: "...identical events.
Camera shifts to a wide shot of the troop bay, Holly Tanaka fiddles with a Magnum.
- Lasky: "Massive destruction. Forerunner in origin."
- Lasky: "Dr. Catherine Elizabeth Halsey..."
Camera shifts to view the hologram as it shows off a bust of Halsey.
- Lasky: "...has managed to contact us.
Camera shifts to Buck smiling, scratching his chin and then becoming serious.
- Lasky: "She claims to have information on these attacks."
Camera shifts into the center of the hologram, following Tanaka as she hands Vale a Magnum.
Camera shifts to see several waypoints mark them selves along the side of a holographic mountain.
- Palmer: "Your mission is to insert behind enemy lines, retrieve Halsey and bring her back to Infinity."
Camera shifts, Vale is looking at Palmer's feed.
- Palmer: "Be advised,"
A holographic figure of Jul 'Mdama forms.
- Palmer: "Dr. Halsey is accompanied by Covenant Supreme Leader Jul 'Mdama."
Camera focuses on Palmer.
- Palmer: "If you have the opportunity--"
Camera shifts to view Locke, the holographic form of 'Mdama disappears.
- Locke: "Understood, Commander."
Camera cuts to behind Locke and Vale.
- Lasky: "Good luck, Spartan Locke. Infinity out."
The holographic display shuts off
- Locke: "Tracking gear online?"
Camera shifts to view Vale looking at a miniature holographic display on her forearm.
- Vale: "Affirmative."
Camera shifts to Tanaka looking at the display on her forearm, and grabbing her helmet.
- Tanaka: "Say, before we make this jump, anybody wanna say a few words?"
Buck gets up from his seat and goes to grab his shotgun.
- Buck: "I figure if God can hear how scared I am, so can everyone else."
Buck cocks the shotgun, and places it on his back.
- Buck: "Locke, you buying first drink when we're done?"
Camera shifts to Locke.
- Locke: "You ask, you buy."
Camera shifts to Buck as he laughs and grabs his helmet. Camera shifts back to Locke.
- Locke: "Fireteam Osiris, the light is green."
Locke hits the rear cargo door release button. Clouds and blue sky can be seen outside the hatch. Camera shifts to Vale putting on her helmet and running to jump off the back of the Pelican, followed by Tanaka who is also putting on her helmet and running. Buck hands Locke his helmet and begins walking to he back. Camera shifts to view Locke and Buck. Buck jumps off the back. Locke puts on his helmet and runs and jumps off the back of the Pelican. Locke begins falling to the ground and catches up with the rest of Osiris.
Cuts to black, "Halo 5: Guardians" appears on screen.
Fireteam Osiris continues falling, explosions and Covenant warships on all sides.
- Locke: Comm check.
A Banshee explodes in front of them.
- Tanaka: Comms are working fine, Locke!
A structure on a mountain collapses near them, Thrusters pack are used to adjust course.
- Locke: Copy that, Tanaka.
- Buck: Spartan Buck, online and ready.
- Vale: Spartan Vale, online.
Camera shifts to look at them head on as they approach the ground. Buck pulls into the lead.
- Locke: Weapons free!
Buck reaches for his Shotgun, Osiris prepares to tuck and roll
- Buck: Contact!
Osiris roles upon landing, engaging Covenant forces from behind.
|Album Cover||Soundtrack||Song Name||Soundtrack Number|
|Halo 5: Guardians Original Soundtrack||Light is Green||2|
|Into the Fire||Complete mission 1||10G|
|Your Team is Your Weapon||Command your team of Spartans in Osiris||10G|
|Enemy of my Enemy||Help the Sangheili General charge the hill in Osiris on Heroic difficulty||10G|
- The Two Giants easter egg is on the level.