Gameplay

H3ODST:ONI Alpha Site

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This article is about the campaign level. For other uses, see Alpha Site (disambiguation).

Concurrent:

Mombasa Streets

ONI Alpha Site
H3ODST ONIAlphaSite Loadscreen.png

Game:

Halo 3: ODST

File name (?):

sc130[1]

Player:

Date:

October 20, 2552, 1810 hours

Location:

ONI Alpha Site, New Mombasa, Earth

Objective(s):

Defend ONI Alpha Site from the Covenant

Par Time:

00:13:00 (Master Chief Collection)

Par Score:

16,000 (Master Chief Collection)
60,000 (Halo 3: ODST)

Main-Legendary.png

Halopedia has a walkthrough guide for this level; see H3ODST:ONI Alpha Site/Walkthrough.

 
“ Fall back, deny access to this vital facility. ”

ONI Alpha Site[2] is the fourth flashback level in Halo 3: ODST campaign.

Completing this level on Normal or above unlocks the Firefight map Alpha Site, which is based on this level. Security Zone is also based on this level.

Summary[edit]

The level opens as Dutch and Mickey 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[edit]

{Cutscene}

DUTCH

ONI Alpha Site

2 hours after drop

The cutscene opens on the bridge leading to the ONI Alpha Site. Dutch watches as a Wraith moves into position at the end of the bridge, while Mickey arms a detonator.

The Wraith starts to open fire.

Promotional image for Halo 3: ODST featuring Taylor Miles and Michael Crespo arming M168 Demolition Charges on the bridge to ONI Alpha Site on campaign level ONI Alpha Site. Cropped from an image on Bungie.net
Mickey and Dutch plant demolition charges on the bridge leading to the Alpha Site.

Mickey finishes arming the detonator.

  • Dutch: "That do it?"

Dutch looks down the bridge to a watchtower with an NMPD Officer in it, which almost gets hit by a plasma mortar.

  • NMPD Officer (radio): "Signal's good! Arm the other detonators and pull back to me!"
  • Mickey: "Come on, tough guy, we gotta blow this bridge."

The two run down the bridge, while another Wraith moves in and starts to fire.

The view switches to Dutch, who takes cover behind a destroyed Warthog, while Mickey hides behind a barricade. Plasma shots from the Wraiths secondary gunners streak past them. A plasma mortar lands several meters in front of Dutch, staggering him.

  • Mickey: "Dutch, arm the other charges!"

Dutch looks back at the Wraiths starting to move up to the bridge. Their gunners continue firing at him.

  • Dutch: "What about those Wraiths?"
  • Mickey: "Forget about 'em, we got explosives to set!"

{Gameplay}

  • Mickey: "Follow me, arm the charges!"

A squad of Marines on the bridge buckle under the Covenant assault, and are forced to pull back.

  • Marine: "We'll never stop that armor! Fall back!"

If the player turns to fight the advancing Covenant horde:

  • Mickey: "Dutch, ignore those tanks!"

If the player walks past the first charge:

  • Mickey: "I got this one, Dutch, you do the rest!"

If the player walks past the second charge:

  • Mickey: "Great, I got to do everything myself?"

After the second charge is armed, two Banshees join the fight.

  • Mickey: "That's the last one, Dutch! Everyone, behind those barriers, bridge is set to blow!"

If the player doesn't go up the ladder to the tower

  • Mickey: "Watchtower Dutch, get up there and pull the trigger!"

Dutch heads for the tower and goes up the ladder.

  • NMPD Officer: "Come on, Super, unlock the keypad!"
  • Superintendent: "KEEP IT CLEAN! RESPECT PUBLIC PROPERTY!"
  • NMPD Officer: "If you don't let us trigger those charges, in about five minutes, your data center's going to be crawling with Covenant!"

The Superintendent gives off a chime.

  • NMPD Officer: "About damn time! Do it, trooper!"

If the player doesn't trigger the charges yet:

  • NMPD Officer: "Trooper, use the laptop to trigger the charges!"

If the player further stalls:

  • Mickey: "What's the hold up, Dutch? Blow this sucker sky high!"

If some Covenant succeed in crossing the bridge:

  • Marine: "Kill their infantry! Don't let them cross the bridge!"

Dutch or the NMPD Officer triggers the charges:

  • Superintendent: "BRIDGE TOLL ACCEPTED. HAVE A PLEASANT TRIP."

The bridge is destroyed, killing all Covenant troops still on the bridge.

  • Mickey: "Woo-hoo! Yeah! That's the way."

Mickey, Dutch, the Marines and the NMPD Officer make their way under the wall.

  • Mickey: "Aw man, Covenant landing on the other side of the wall!"

If the player doesn't go under the wall:

  • Mickey: "C'mon Dutch, those cops aren't going to last long against Brutes!

If the player still doesn't follow Mickey:

  • Mickey: "Over here, Dutch, into the tunnel, under the wall!"

The group make their way up the stairs, to the courtyard.

  • Mickey: "Go, Dutch! We gotta keep the Covenant away from that building."

From this point on, if the IWHBYD skull is activated, and the player stares at Mickey, the two exchanges dialogue randomly chosen from the following lists:

  • Mickey:
    • "I wonder if Gunny is also having this much fun."
    • "If the Covenant want this building so bad, I say we let them take it!"
    • "Don't look at me, Dutch! I voted to get out the hell of here!"
    • "See, Dutch? This is what happens when you help people."
    • "I love blowing crap up, Dutch, but this situation sucks."
  • Dutch:
    • "Quiet, Mickey, I'm trying to fight!"
    • "Mickey, Relax! We'll be fine!"
    • "Are you always this optimistic?"
    • "Quit griping Mickey, we got work to do."

Mickey and Dutch make their way up the hill, where a group of Covenant infantry, including a Mgalekgolo pair assault more NMPD Officers and Marines.

  • Female Marine: "All teams, hold the ridge, don't let them near the ONI building!"

Soon, more and more waves of Covenant are dropped off. Multiple Wraith tanks are dropped in by Phantoms.

  • Female Marine: "Fall back! I repeat, fall back to the top of the ridge!"
  • Jiralhanae Captain: "Forward, warriors! Take this hill or die upon it!"

The human forces fall back to the entrance to the ONI building. They fend off increasing numbers of Covenant.

  • Mickey: "More Phantoms, look sharp!"
  • Female Marine: "We can't hold 'em, everyone fall back inside the building!"
  • Mickey: "Too many of 'em, Dutch. We gotta scoot!"
  • Jiralhanae Captain: "Forward! Grind their bones beneath your feet!"
  • Mickey: "Dutch, inside the building! N