For other uses of the word Halo, see here.
Halo is the second campaign level in Halo: Combat Evolved. Set on the morning of September 19, 2552, it gives the player 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 game in which Kig-yar and Banshees are encountered.
In Halo: Combat Evolved Anniversary, upon completion of this level on any difficulty rewards the player the achievement "Halo" and 25 Gamerscore points. If the player destroys three of the Banshee fighters in this level, he/she will receive the achievement "No-Fly Zone" and 10 Gamerscore points. On Legendary, players who complete the level without entering the Warthog receives the achievement "How Pedestrian" and 25 Gamerscore points.
In Halo: The Master Chief Collection, completing the level on any difficulty unlocks the "Halo" achievement worth 10 gamerpoints. "No-Fly Zone" and "How Pedestrian" are unlockable with the same criteria and are each worth 10 gamerpoints. Beating the level's par time and par score will unlock the "Flyover Country" and "Giant Hula Hoop" achievements respectively, each worth 10 gamerpoints. Activating the Terminal found on the level will unlock the "Sacrifice" achievement worth 5 gamerpoints, while finding the Mythic and Boom Skulls will unlock the "Skulltaker Halo: CE: Mythic" and "Skulltaker Halo: CE: Boom" achievements, each worth 5 gamerpoints.
The Bumblebee flies over a cliff, trailing smoke. Switch to John-117's point of view as he watches from inside as the craft heads towards the ground at an alarming rate.
A violent crash is heard. Fade to white.
All of the Marines sit dead on their chairs. A few of the bodies rest outside of the lifepod. Weapons and ammunition scatter around the pod's exit. The Master Chief exits the lifepod.
If the player heads to the waterfall's direction:
The Chief approaches the bridge, the only way deeper into the valley
As the Chief reach the other side of the bridge, a Spirit dropship flies over him.
If the player catches the attention of the Spirit or the troops:
The Chief approaches a large structure where a group of stranded Marines are battling the Covenant. He assists the struggling Marines and eliminates the Covenant troops. Two Marines approach him.
The Chief heads behind the structure to deal with the Covenant forces.
The UNSC forces deal with the next wave.
If all of the Marines are dead:
If the player begin to leave the area:
After a few more waves of Covenant, a Pelican dropship appears from the cliffs.
The Pelican deploys its Warthog.
One marine stays behind to accompany the Chief. The other survivors get aboard the Pelican which takes off.
If the player walk away from the dropped Warthog towards the distant cave:
If the player explores the area on foot or delays for more than five minutes:
A Navigation point appears on the distant cave.
The Chief's Warthog approaches a large cave structure.
The Chief drives into the cave.
After navigating the tunnels, the Chief 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.
The Chief ascends to a balcony, kills the Sangheili he encounters, finds a control panel, and activates it.
When the Chief 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 the player kills all of the enemies in the area. However, the energy bridge will still activate in gameplay.)
The Chief crosses the bridge, and navigates through more tunnels.
The Chief arrives at the exit to the cave.
There are three crash sites, and different lines of dialogue are said depending on the order the player visit them in. The conversation between Cortana and Rawley is always said in the order shown here, irrelevant as to which order the player visits the sites in.
The Chief approaches the rock slide crash site. There are up to seven Marines that can be saved there.
If the Covenant charges into the rocks:
Marines will all get on top of the highest rock, where the sniper is.
If the player leaves the area before evac arrives:
The Chief fends off a few waves of Covenant Forces.
This line changes to reflect which two pods the player haven't yet found:
If all of the Marines are killed:
If the player dawdles:
The Chief approaches the river head crash site.
The Chief makes his way up into the hills where the four live Marines are.
The Chief defends the survivors from more waves of Covenant drop ships.
If all Marines are killed:
The Chief leaves the second lifeboat, searching for the third and the last lifeboat.
The Chief approaches a lifeboat near the river. There are no bodies nearby.
The Chief crests a hill and sees a structure on the cliff's edge.
If the player leaves the area before finding the survivors:
The Chief 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.
If all of the Marines and techs are killed:
If there are still Covenant in the area when the player emerges from the structure:
The Chief mops up the last of the Covenant in the immediate area.
Echo 419 arrives.
The Chief climbs on board the Pelican.
Echo 419 flies away from the area.
Fade to black.