ONI Alpha Site

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ONI Alpha Site
File:94553486-Full.jpg
Game:	Halo 3: ODST
Player:	Dutch
Date:	October 20, 2552
Location:	ONI Alpha Site, New Mombasa, Earth
	Halopedia has a walkthrough guide for this level; see ONI Alpha Site/Walkthrough.

ONI Alpha Site is one of the flashback levels in Halo 3: ODST. It is set in the ONI Alpha Site in New Mombasa.

The level is set two hours after the Squad's drop into the city, and four hours before the Rookie's awakening, from Dutch's point of view. He and Mickey are defending the ONI facility with the help of the city's Superintendent, NMPD, and Marine forces.

Summary

The level opens as they are setting demolition charges to destroy the bridge leading to the complex to prevent the Covenant forces from accessing it. After the charges are armed, an NMPD officer commands the Superintendent to unlock a keypad on a bridge toll booth so they can remotely detonate the charges. The AI is hesitant at first, but eventually lets Dutch destroy the bridge. After this, they fall back deeper into the facility, fighting off more waves of Covenant until they are forced to retreat into the ONI building itself. Dutch and the NMPD officers fight off the squads of Brutes, Grunts and Jackals that continue to push into the building. Eventually the fight is brought up to the roof of the facility, where the final Covenant infiltrators are killed. A Pelican picks up Dutch and Mickey, and the level ends as Mickey remote detonates the charges in the ONI facility, destroying it.

Transcript

{Cutscene}

DUTCH

ONI Alpha Site

2 hours after drop

Dutch watches as a Wraith moves into position, while Mickey arms a detonator.

• Dutch: {whispers} "Hurry up!"

The Wraith starts to open fire.

• Mickey: "Hey, you wanna do this? Be my guest. But this... {presses button} ain't a job you wanna rush."

Mickey finishes arming the detonator.

• Dutch: "That do it?"

. The NMPD officer on board looks at them.

• NMPD Officer: "Hey, you fellas know a Gunnery Sergeant Buck?"

• Mickey: "Sure do!"

• NMPD Officer: "Patching him through."

The Pelican lifts off and departs the ONI building

• Buck: "Glad you boys are safe and sound."

• Dutch: "Likewise Gunny, you need a pickup?"

• Buck: "Long as you're offerin'. We're in the Police HQ."

• Dutch: {to the NMPD Officer} "Can you take us there?"

• NMPD Officer: "Affirmative!"

• Buck: "Alright, meet you up top!"

Mickey nudges Dutch

• Dutch: "What?"

Mickey points to the ONI Building, and starts to count down from three on his fingers. When he reaches zero, he detonates the charges, destroying the building.

• Mickey: {laughs} "This day ain't turnin' out so bad after all!"

• Dutch: "Heh."

The Pelican flies away as the view changes to a Superintendent camera, the avatar gives a confused then angry face as the building is destroyed.

The cutscene ends. Screen fades to black.

Trivia

• During the drop sequence when the player is in their Pod the ONI Alpha Site and its surroundings can be seen, including the bridge that is destroyed two hours later in this mission.
• If you don't arm the explosives and instead kill all of the Covenant on the bridge, Mickey will arm the charges and the NMPD Officer will blow it instead, even if you're still on the bridge and it is cleared of all Covenant.
• If playing on Co-op with campaign scoring active, the host will receive points for any Covenant who are killed by the bridge's detonation, often resulting in large multi-kills such as Killpocalypse or Killionaire.
• Inside the base is a memorial wall with hundreds of names of the people who have died in the war. Dr. Catherine Halsey and Admiral Preston Cole are listed, along with some humorous names, like London Bridges.
• At the part where you have to defend until the elevator comes, if you jump over the walls (where the elevator comes up) and fall to the bottom then go into theater and go to the bottom you will see an unarmed M168 Demolition Charge, this is either a glitch or an Easter egg, it is still odd for it to be the only one in the shaft. It is also on the firefight map Alpha Site, (unarmed, green, red, armed). It is mostly likely an easter egg or an item Bungie left by accident.
• The beginning of the level up to the bridge explosion was the first level shown at E3 2009.
• The NMPD officer in charge of the group Dutch and Mickey team up with in the main hall of the ONI site has glasses which will read either "Keep it Clean" or "Please remain calm" running across them in a loop (best seen using Theater).
• You can get outside the level in theater mode by flying to the left of the building before the game loads the second section of the level.
• At the part where you are inside the ONI building with the Kamikaze Grunts, if you kill one while it is near the other, (a better chance of getting this with the Mythic Skull on) sometimes the grenades will drop out of its hands and it will be unarmed.
• In the level Data Hive, when Dare says "Some idiots blew the building at the top of the shaft", she is referring to the destruction of the ONI building in this level.
• The Officer in the tower is almost invincible, being able to withstand several spartan laser shots, sniper rifle rounds, even the odd Wraith shot.
• If a Marine is near the bridge when it explodes, if they don't die, they will be thrown quite far, and in rare cases will be thrown through the wall.
• For some reason, no Marines will go inside of the ONI building, even if you manage to kill all the enemies and keep a Marine alive. This may be a game error since you can see NMPD Officers going inside, however the Marines may have stayed outside to hold off the approaching Covenant troops.
• If you activate the elevator and then jump over the railing you can see the drones spawn or go hide in another area of the level, then when the elevator reaches the top you will teleport into it. This can be quite useful on Legendary if you have trouble fighting Drones.
• This is the last level you are aided by normal Marines.
• The Marines on the bridge are usually weaker than the ones near the building, and are usually killed as they descend the steps to the courtyard.
• Strangely, The Superintendent places beacons on the charges but initially refuses to allow Dutch to destroy the bridge.
• At some points, the Marine who gives the commands to retreat will be invincible, capable of withstanding several blows from a gravity hammer.
• The debris on the bridge simply fall into the water when the bridge is destroyed, instead of being propelled into the air.

Gallery

• ONI Alpha Site.jpg

  This mission's beacon is the remains of a M195 Demo Charge.

• 

  The interior of the ONI building.

• Battle of ONI Alpha Base.jpg

  Mickey and Dutch plant demolition charges on the bridge leading to the ONI complex.

• 

  View of New Mombasa out of bounds.