Halo Alpha
Halo Alpha

For other uses of the word Halo, see here.

Seek out surviving Marines and help them fight the Covenant.

Halo is the second campaign level of Halo: Combat Evolved and it begins on the morning of September 19, 2552. It gives us the first "on the ground" view of Installation 04. As the only survivor from the Bumblebee escape pod crash, John-117 fights against the marauding Covenant forces, while searching and rescuing other survivors from the Pillar of Autumn. This is the first level in the series in which Jackals, Spirit dropships, and Banshees are encountered.


Flawless Cowboy[]

{Original Cutscene} {Anniversary Cutscene}

  • Cortana: "We're coming in too fast!"

The Bumblebee flies over a cliff, trailing smoke. John watches from inside as the craft heads towards the ground at an alarming rate.

  • Bumblebee Pilot: "Damn! Air brake failure! They blew too early! I'm losin' her. Brace for impact!"

A violent crash is heard. Fade to white.

{Game play}

  • Cortana: "Chief? Chief! Can you hear me? At last! Are you alright? Can you move?"

As John exits the life pod:

  • Cortana: (quietly) "The others… the impact. There's nothing we can do."

As John exits the area:

  • Cortana: "Warning! I've detected multiple Covenant drop ships on approach. I recommend moving into those hills. If we're lucky, the Covenant will believe that everyone aboard this lifeboat died in the crash."

If John starts exploring:


A Covenant dropship approaches the crash site.

  • Cortana: "I'm reading thousands of types of flora. The ring's ecosystem is incredibly sophisticated."

If John begins to cross the bridge:

  • Cortana: "Alert! Covenant Drop ship inbound! They must be looking for survivors. I recommend immediate evasion!"
Scrn 092

Two Banshees above the canyon.

If John does not evade:

  • Cortana: "Alert! Covenant drop ship has detected us, here they come."

A Covenant drop ship arrives, accompanied by two Banshees. John either eliminates or evades dropped Covenant troops and Banshees, and proceeds through a canyon.

  • Cortana: "I'm reading a lifeboat beacon over the next hill. We should check to see if there are any survivors."

John approaches the surviving Marines.


  • Private Bisenti: "Good to see you, sir! I thought we were the only ones to make it off of the Pillar of Autumn!"


  • Private Bisenti: "Thank God you're here, Master Chief. I thought we were in real trouble."

  • Staff Sergeant Johnson: (sighs) "It's a mess, sir. We're scattered all over this valley. We called for evac, but until you showed up, I thought we were cooked."
  • Cortana: "Don't worry, Sergeant. We'll stay here until evac arrives."
  • Private Mendoza (COM): "Heads up! I got a Covenant drop ship headin' in, over here!"

John heads behind the structure to deal with the Covenant forces.

  • Private Mendoza (COM): "Look sharp! Covenant dropship on approach! I could use some help over here!"

John deals with the next wave.

  • Private Mendoza (COM): "Uh-oh! Another bandit droppin' in behind us! They're tryin' to flank us!"

If all of the Marines are dead:

  • Cortana: "We couldn't save them... I recommend to stay here and wait for extraction."

If John starts to leave the area:

  • Cortana: "Where are you going? The lifeboat beacon is our only chance to getting reunited with the rest of the crew, we need to stay with it."

After the final wave of drop ships:

  • Marine, SSGT Johnson or Cortana (COM): "Roger, Echo 419. This is Fire Team Charlie. We read you. Is that you, Foehammer?"
  • Foehammer (COM): "Roger, Fire Team Charlie. Good to hear from ya!"
  • Marine or SSGT Johnson: "If you're not too busy, Foehammer, we could use a lift. We have survivors to transport to the Command Shuttle."


  • Cortana (COM): "Foehammer, we need transportation to the Command Shuttle."
  • Foehammer (COM): "I'm on my way."
Halo final alt1 th

Echo 419 drops John a Warthog. Two lifeboats can be seen flying across the sky, about to land.

  • Cortana: "Look, more lifeboats! They're coming in fast. If those lifeboats make it down, the Covenant are going to be right on top of them. (COM) Foehammer, we need you to disengage your Warthog. The Master Chief and I are going to see if we can save some soldiers."
  • Foehammer (COM): "Roger, Cortana. Okay, Charlie Team, Warthog deployed. Saddle up and give 'em hell!"
  • Cortana (COM): "Roger, Foehammer. Stand by to evac survivors and transport them to safety."
  • Foehammer (COM): "That's affirmative. Echo 419 staying on station. Foehammer out."
  • Cortana: "The Master Chief and I need some backup, can you spare a few men?"
  • SSGT Johnson (If you've kept him alive) or PFC Fitzgerald: "Sure, Cortana. All right ladies, volunteers step up on the double! The rest of you, get to the drop ship."

If you walk away from the dropped Warthog towards the distant cave.

  • Cortana: "We'll need that Warthog if we want to get to the other lifeboats in time."

If John explores the area on foot or delay for more than five minutes:

  • Cortana: "Survivors would probably stick close to their emergency beacons."

A NAV point appears on the distant cave.

  • Cortana: "We need to find where each lifeboat has landed."

John's Warthog approaches a large cave structure.

  • Cortana: "This cave is not a natural formation. Someone built it, so it must lead somewhere."

John drives into the cave.

  • Cortana: "I've hacked into the Covenant battlenet. They're actually broadcasting tactical data on unencrypted channels! We should show them who they're dealing with. Master Chief, I'm going to use your suit's transponder system to monitor their chatter."

After navigating the tunnels, John emerges in a large cavern, with a chasm dividing the floor into two halves. There is no visible way to cross. Covenant forces occupy his side of the cavern. He kills all the Covenant present.

  • Cortana: "There must be some mechanism to cross this cavern. Look for a control panel or switch."

John ascends to a balcony, finds a control panel, and activates it.

{Original Cutscene} {Anniversary Cutscene}

When John engages the panel, four giant silver beam-generating structures extend across the chasm, and an energy bridge slowly fades into coherence.

(NOTE: The cutscene mentioned will not occur unless you kill all the enemies in the area. However, the energy bridge will still activate in gameplay.)


John crosses the bridge, and navigates through more tunnels.

  • Cortana: "New traffic on the Covenant Battlenet... a lot more crew made it off the Autumn than I had predicted - the Captain really gave them hell! If we can find Captain Keyes and other survivors, we have a chance to coordinate an effective resistance."

John arrives at the exit to the cave.

Reunion Tour[]

There are three crash sites, and different lines of dialogue are said depending on the order you visit them in. The conversation between Cortana and Foehammer is always said in the order shown here, irrelevant as to which order you visit the sites in.

John approaches the rock slide crash site. There are up to seven Marines that can be saved here.

  • Cortana: "Survivors detected. Marines are concealed in those rocks."
  • Marine Sharpshooter: "Contact! Covenant drop ship, down there!"

If the Covenant charges into the rocks:

  • Marine: "Fall back! Fall back!"

Marines will all get on top of the highest rock, where the sniper is.

If John leaves the area before evac arrives:

  • Cortana: "Where are you going? We need to stay with the Marines."

John fends off a few waves of Covenant Forces.

  • Foehammer (COM): "Echo 419 to Cortana, come in."
  • Cortana (COM): "We read you, Echo 419. We have survivors and need immediate dust-off."

This line changes to reflect which two pods you haven't yet found:

  • Foehammer (COM): "Roger, Cortana. On my way. I've spotted additional lifeboats in your area. One near the cliff edge. And another near the head of the river. Hard to see from my altitude, but it looks like there are more survivors."
  • Cortana (COM): "Acknowledged. We're on our way."

If all of the Marines are killed:

  • Cortana: "No survivors..."

If John dawdles:

  • Cortana: "We need to find the other two lifeboats."

John approaches the river head crash site.

  • Cortana: "There's some Marines, hiding in the hills above the structure."

John makes his way up into the hills where the Marines are. There are three Marines that can be saved here.

  • Marine: "You're a sight for sore eyes Chief. We're in a bad way. We've got wounded here."
  • Cortana: "I'll call in a dropship to pick them up."

John defends the survivors from covenant infantry, including a covenant dropship.

  • Foehammer (COM): "Echo 419 to Cortana, Foehammer's on station and ready for another pickup."
  • Cortana (COM): "Affirmative, Foehammer. We're ready for dust off, approach when ready. We're going to look for the last lifeboat, Echo 419, good luck."

If all Marines are killed:

  • Cortana: (bitterly) "They're all dead."

As John leaves the second lifeboat:

  • Cortana: "Warning! I've picked up reports that the Covenant have located and secured the Pillar of Autumn's crash site. The good news is the Captain's still alive. The bad news is that the Covenant has captured the entire surviving command crew. Let's hurry and find the final lifeboat, so we can link up with the rest of the survivors."

John approaches a lifeboat near the river. There are no bodies nearby.

  • Cortana: "Lifeboat detected. No sign of survivors..."
  • PFC Fitzgerald: "This lifeboat is trashed, Chief. There are weapons and supplies but...no bodies."


  • PFC Fitzgerald: "The lifeboat's totaled, sir. There are weapons and supplies everywhere, but I can't find any bodies. Maybe somebody made it out of here alive."


  • PFC Fitzgerald: "What a mess! The weapons lockers must have broken open. There are weapons and supplies all over the place. Where's the bodies, though?"

John crests a hill and sees a structure on the cliff's edge.

  • Cortana: "Maybe they took cover in that structure. Let's check it out."

If John leaves the area before finding the survivors:

  • Cortana: "We should search the interior of those structures before we leave."
Scrn 009

John-117 watches a Beam Emitter fire.

John locates a way into the structure, where he finds up to five Marines and naval crewmen battling the Covenant. He assists them in killing the Covenant forces.

  • Cortana: "I've called for evac."
  • Marine: "Roger that. Marines! Assemble for evac, pronto!"

If all of the Marines and techs are killed:

  • Cortana: (sadly) "We weren't able to save any of the Marines. A one hundred percent casualty rate."


  • Cortana: "Dead. They're all dead. Get to the drop ship and let's get back to base."

If there are still Covenant in the area when you emerge from the structure:

  • Cortana: "We should secure the area before the drop ship arrives."

John mops up the last of the Covenant in the immediate area.

  • Cortana (COM): "That's the last of them."
  • Foehammer (COM): "Roger that. I'm on my way."
  • Cortana: "New traffic on the Covenant battlenet. I've found Captain Keyes! He's being held on a Covenant cruiser, the Truth and Reconciliation, a ship I disabled before we abandoned the Autumn. The Truth and Reconciliation touched down on a desert plateau roughly three hundred kilometers up-spin."

Echo 419 arrives.

  • Cortana: "There's our ride. Get aboard, and let's get out of here."
  • Foehammer (COM): "Welcome aboard, Master Chief. Ready for dust-off."

John climbs on board the Pelican.

{Original Cutscene w/ All Alternatives}

{Anniversary Cutscene Alternative 1} {Anniversary Cutscene Alternative 2} {Anniversary Cutscene Alternative 3}

  • Cortana: "We should move out, Lieutenant. And then we'll need your help on our rescue mission."

Echo 419 flies away from the area.

Fade to black.

Level ends.


Icon Name Description Value
HTMCC AchievementArt Flyover-Country Flyover Country Beat the par time on Halo. 10G
HTMCC AchievementArt Giant-Hula-Hoop Giant Hula Hoop Beat the par score on Halo. 10G
Halo (achievement)

HTMCC AchievementArt Halo

Halo Complete Halo. 25G (CEA)

10G (MCC)

How Pedestrian

HTMCC AchievementArt How-Pedestrian

How Pedestrian Complete Halo without entering a vehicle. 25G (CEA)

10G (MCC)

No-Fly Zone

HTMCC AchievementArt No-Fly-Zone

No-Fly Zone Destory three of the four Banshees on Halo during a single play-through. 10G
HTMCC AchievementArt Sacrifice Sacrifice Activate Terminal 2 on Halo. 5G
HTMCC AchievementArt Skulltaker-Halo-CE-Boom Skulltaker Halo: CE: Boom Find and claim the Boom skull in remastered mode. 5G
HTMCC AchievementArt Skulltaker-Halo-CE-Mythic Skulltaker Halo: CE: Mythic Find and claim the Mythic skull in remastered mode. 5G



  • If the player stands under Echo 419 when it lands near the cliff edge, you will come up through the floor inside the Pelican. When this happens, jump up through the floor and you can walk inside the drop ship. However, when it starts to fly away, you'll fall through the floor, and to your death.
  • Similarly you can also board a covenant drop ship, when it lands simply walk in to the sides that the covenant come out. Like the Pelican at some point you will fall out and to your death.
  • Any Marine or Navy tech sitting in the innermost seats of the Pelican will hold out their hands as if clutching an Assault Rifle (even the techs armed with Pistols) but will actually hold nothing.
  • Although the Pelican has ten seats, only a total of six Marines will ever board it at a time. The others will stay outside and wander around.
  • There is a way to see Master Chief in the ending cutscene. First, allow all your allies to climb onto the Pelican, and kill them once they are all inside. Then, once you've killed enough, the cutscene will start without John getting onto the Pelican, and the player will be able to see John standing in front of the Pelican as it lifts off.
  • If you allow the Banshees in the beginning to overturn and the Elite inside falls out, the Banshee still cannot be driven.
  • If you kill all but one marine at the last structure at the cliff edge (they are now your enemy) and all the covenant in the area, Foe Hammer will not allow you to board the Pelican.


  • If the player enters the structure on the cliff edge where the Marines are fighting covenant inside, if the player jumps off the shaft that shoots blue energy straight up, the player will see a blue ball hovering in thin air when the player reaches the bottom (dead). This blue ball is actually the device Bungie uses to create the laser. Another way to see this is with a fly-cam.
  • Cortana mentioned a command shuttle to Foehammer, when the actual meeting point for the UNSC forces is Alpha Base.
  • In the structure near the steep cliff, where the player finds a team of Marines, some of them will fall down the chasm inside the structure if two Marines try to cross the bridges over it at once. Sometimes Marines will attempt to jump over the chasm.
  • Cortana asks Johnson if he can spare some men to accompany John, but only one Marine from his group is actually needed since the Warthog comes with its own gunner.
  • Johnson asks for volunteers to accompany John, but sometimes he is the volunteer.
  • Because the models for Avery Johnson and Marcus P. Stacker are generic for all Marine staff sergeants in the game, in this level it is possible to have two "Sergeant Johnson"s or "Sergeant Stacker"s accompany the player in the Warthog.
  • At the end of the level, Cortana says, "We should move out, Lieutenant," even though Foe Hammer (Carol Rawley) is a captain. It is possible that she was talking to Rawley's copilot, Lieutenant Frye, though this seems inconsistent with the rest of the game, as Cortana exclusively communicates with Captain Rawley on Echo 419.
  • On this level the model used for the Halo ring in the far distance does not actually "meet" with the terrain. If the player looks at the bottom of the ring (where it should flow into the ground below the cliffs) the player can see the sky in-between the ring and the ground, indicating a gap. This can be best seen with the scope on the pistol or sniper rifle found on this level.
  • If you kill a marine waiting for the evac pelican to take off, you will see his assault rifle bouncing up and down.


  • The Halo 3 level, Halo, is partially linked to this level as in the first, the player visits the installation for the first time and in the other one, for the last time.
  • Marty O'Donnell revealed in the Halo 3 Legendary Edition bonus disc that Jen Taylor (voice actress of Cortana), also played the voice of the lifeboat pilot at the beginning of the level.
  • The level was one of the inspirations for the design of the Halo: Combat Evolved multiplayer map, Blood Gulch, since the environment is somewhat similar.
  • The Bumblebee pilot's helmet has a resemblance to the helmet worn by the protagonist of the Marathon video game series.
  • The Firefight map Installation 04 in Halo: Combat Evolved Anniversary takes place at the end of the level at the Beam Tower on the cliffside.


  • While protecting the Marines at the river head crash site, the first Spirit crashes into a cliff as it leaves the area.
  • If the player makes any Marines on board Echo 419 turn on the player at the end, the player will not be able to board the Pelican until the player kills them all or until they trust the player.
  • If the player goes on a joyride after saving the last group of Marines instead of boarding Echo 419, after a minute the cut scene will play regardless of where the player is.
  • A good strategy for this level is to get any Marine (preferably with full health) onto the player's gunner seat of the Warthog. If possible, get one of the Marine snipers to be the player's passenger; his sniper has infinite ammo and he rarely misses targets (all 1-2 hit kills with sniper).
  • The Banshees at the beginning of the level cannot be used by the player, even if the Elites are killed with the Banshee still intact.
  • There is also a glitch that may make the Elites in the Banshees die for flying to far out of level boundaries.
  • The line, "this cave is not a natural formation" was admitted by Bungie to be a somewhat useless line due to its obviousness. Originally, the cave in question was meant to look natural, and the line was meant to indicate that only Cortana could tell that it was artificial. However, the developers didn't want to spend time creating all the geometry for the tunnel, so they ended up keeping the tunnel in a blocky Forerunner style. Despite this, Cortana's line was never removed.[1]
  • If you kill one of the crewmen before the final cutscene you may notice in the cutscene that the head of the crewman has been blown off even though this can only be done with Flood Combat Forms.
  • Joseph Staten used a recording of the Bumblebee crashing from the perspective of Master Chief's Mark V helmet for the first cinematic.[2]