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Game: Halo: Combat Evolved
Assault on the Control Room
Player: John-117
Date: September 20th, 2552
Place: On the surface of Installation 04, in and around the control room

Get to Halo's Control Room before the Covenant

Halopedia has a walkthrough guide to this level, Assault on the Control Room (Level). See Assault on the Control Room (Level)/Walkthrough.
Defend the Control Room against wave after wave of Covenant troops.

Assault on the Control Room is the fifth and longest campaign level in Halo: Combat Evolved.



The level follows the Master Chief on a mission to reach Halo's Control Room. The Covenant are deployed in greater numbers and in a more superior force than previously seen in the game, using Wraiths, Ghosts and Banshees. The majority of the level is set in a snowy, outdoor environment. Although the level seems to be natural, there are networks of tunnels and elevators built by the Forerunner that connect sections of the constructs into the Control Room.

The level is known for its variety and well roundness. It allows the player to use every weapon and vehicle in the game (except the Shotgun), and is the only level in Halo: Combat Evolved that allows the Master Chief to use a Scorpion tank. Although the level is famous for its snowy outdoor battles and large bridges, there are also a variety of indoor skirmishes, including standoffs with Zealot Elites. There is a mix of vehicle, long-range, and close quarters combat. The player is assisted by a handful of Marines after their Pelican crashes, but the level is mostly a solitary experience.

At the end, the Master Chief reaches the Control Room and Cortana interfaces with the computers. She is horrified to learn that Halo houses the Flood, and the weapons cache that Captain Keyes is looking for will lead him straight to the parasite. Cortana elects to stay behind, while the Chief rushes off to find the Captain.



Part 01: I Would Have Been Your Daddy...


{Fade in to the interior of a large Forerunner dome, pan down to a long shaft, a Grunt paces on an open platform.}

{Close up of the walking Grunt, other Grunts around him are asleep, he stops as he hears jets, he sniffs the air, and yelps as a Pelican rises up from the chasm in front of him, screams and runs towards the door}


Carol "Foehammer" Rawley (O.S.): "This is as far as I can go."

Cortana (O.S.): "Roger that, we can find our way to the Control Center from here."

Foehammer (O.S.): "Good luck, Foehammer out."

{The Pelican hovers at the edge of the platform, the Chief gets out. He proceeds into a series of circular rooms and begins clearing them of Covenant.}

Cortana: "The Covenant presence here is stronger than I anticipated. They seem to have the entire region secured."

{The Chief emerges onto a bridge, where he discovers that it is snowing.}

Cortana: "Interesting... the weather patterns here seem natural, not artificial. I wonder if the ring's environment systems are malfunctioning... or if the designers wanted the installation to have inclement weather. "

{A Pelican Dropship flies over the bridge. The Covenant forces on the bridge open fire.}

Fire Team Zulu awaits extraction.

Fire Team Zulu Sergeant (O.S.): "This is Fire Team Zulu requesting immediate assistance from any UNSC forces. Does anyone copy?"

Cortana: "I didn't think there were any human forces left on this part of the ring." (O.S.) "Cortana to Fire Team Zulu, I read you. Fire Team Zulu, this is Cortana. Hold position. We're on our way."

Fire Team Zulu Sergeant (O.S.): "Roger that. Make it quick."

{The Pelican descends to an area below the bridge.}

{The Chief enters another structure and descends to the ground level, where he returns to the canyon. A large number of Covenant have three Marines with an overturned Warthog cornered. A Covenant Wraith tank fires plasma mortars as Shade turrets and Ghost vehicles strafe the Marines.}

Marine: "Glad you could join the party, Sir!"


Marine: "Master Chief, Sir! Good to see you!"

{After enemies in the area are eliminated}

Marine: "They never gave it their best shot, but they didn't count on running into the biggest squad of Marine bad-asses in the Corps!"


Marine: "That's all of them. The area's secure."

{The Chief finds a second group of Marines fighting near a Scorpion tank. With his assistance they clear the area.}

Marine: "Enemy forces eliminated. The area's secure."

Marine: "Aw, crap. Let's get the hell outta here, man! Somebody call the dropship!"

Fire Team Zulu's Sergeant spots enemy forces in the valley.

Fire Team Zulu Sergeant: "You stow that garbage right now, mister. You're a Marine, so act like it, dammit! We've got a job to do here."


Marine: "Shut up! Show some backbone, amigo!"

Cortana (O.S.): "Negative, team. No evac available at this time. But the Chief and I could use some assistance."

Fire Team Zulu Sergeant: "Okay, Marines. Time to pay back the Chief for pulling your sorry tails out of the fire. Prepare to move out!"

{The Chief reaches a second large open area, where one Wraith hovers on the ice and another lurks on top of the cliff at the far end of the canyon.}

Marine: "Bloody hell! Enemy forces have armor's time to earn our pay."


Marine: "Enemy mortar tanks sighted at my's gonna be a busy day."


Marine: "Dang, they got armor support! Watch out for those tanks!"


Marine: "Contact, Contact. Covenant mortar tanks are moving in!"

Cortana: "The Covenant placed their tanks to defend the entrance to the tunnel."

{The Chief destroys the first Covenant tank.}

Marine: "Looks like that armor wasn't so tough after all! Let's mop up the rest of 'em!"

{The Chief enters the tunnel, and comes across a large cavern. More Covenant wait inside.}

Marine: "More Covenant sighted!"

Marine: "Man, these guys are like cockroaches!"

{The Chief crosses the cavern and exits into another tunnel, which soon turns into a rocky slope heading upwards.}

Part 02: Rolling Thunder

{The Chief clears the area, including the fourth Wraith of the level.}

Unnamed Sergeant: "You monkeys almost look like golden boys!"

Marine: "Damn straight!"

{The Chief comes across two Hunters chasing after a squad of Marines, where the path switches back and goes down to a frozen river leading to the cave to the last area of the second chasm.}

Cortana: "I thought the Covenant had eliminated all the Marine forces in this area."

{After the Chief engages and defeats the Hunters, a Covenant dropship appears from behind the cliffs and drops in on the ridge he just descended from.}

Marine: "Anybody else hear that? Aw, man... Covenant dropship inbound, take cover!"

Marine: "The Covenant are dropping in behind us! We're trapped!"

{The Chief nears some switchbacks leading up to final area of the second chasm.}

Marine 2: "Master Chief, the Covenant have stationary guns dug up in those rocks!"


Marine 3: "Whoa, Sir! The Covenant are dug up in those rocks! They've got us pinned down here!"

Cortana: {to Master Chief} "We need to get up this ridge." (O.S.) "Marines, hold your positions. We'll handle those guns." {to the Chief again} "Master Chief, we should scale the ridge and get below those stationary guns."

Marine 2: "Roger that. Marines, stay here and cover the Master Chief."


Marine 3: "I'm in no hurry for a heroic charge on those guns, Cortana. Holding position."

Master Chief fires a rocket at a Banshee.

{The Chief eliminates all enemies in the area, including a Banshee, and approaches a door in the cliffs.}

Cortana: "Cortana to Fire Team Zulu. I've sent a distress signal tagged with your current position. Hold your position and await evac. The Master Chief and I are going to continue on ahead."

Unnamed Sergeant or Marine 1: "That's affirmative! Fire Team Zulu out!"


Marine 1: "Affirmative! Okay people, evac bird's on the way!"


Marine 2: "Give 'em hell, sir! Fire Team Zulu out!"

{The Chief battles his way through more interior areas and across two more bridges.}

Cortana: "Resistance appears to be increasing. We must be close to the Control Center."

{The Chief reaches a door to the third chasm.}

Part 03: If I Had a Super Weapon...

Cortana: "Analyzing. This must be the Control Room. Subtle. The entrance to the Control Room is at the top of that pyramid structure. Bring me up there and I should be able to get us inside."

{If the Chief doesn't get to the Banshees in time, he proceeds through more inside areas before reaching the ground floor, where he once more emerges into the chasm.}

Cortana: "The entrance to the Control Room is at the top of the pyramid. Let's get up there. We should commandeer one of those Ghosts, we're going to need the firepower."

{The Chief battles his way up the pyramid and through big doors into a large corridor, where he kills all of the Covenant inside.}

Cortana: "Scanning. Covenant forces in the vicinity have been eliminated. Let's move on to Halo's Control Room."

{The Chief opens the final door.}


Cortana: "This is it. Halo's control center."

{The Master Chief walks through the door and to a control panel at the centre of a circular glass walkway projecting into the middle of a massive open chamber. A holographic map of Halo surrounds a smaller holographic map of the system, which shows Basis and Threshold, and Halo itself between them. Also noticeable are the red areas shown on the lands of Halo, possibly indicating where the Flood is currently spreading.}

Cortana: "That terminal, try there."

{The Chief unplugs Cortana's chip from his helmet and places her chip in the terminal. A moment later, she appears above the display. Data streams out from her in all directions. Her eyes are now red.}

Master Chief: "You all right?"

Master Chief in Halo's Control Room.

Cortana: (smiles) "Never been better! You can't imagine the wealth of information. The knowledge... so much... so fast. It's glorious!"

Master Chief: "So...what sort of weapon is it?"

Cortana: "What are you talking about?"

Master Chief: "Let's stay focused. Halo... how do we use it against the Covenant?"

Cortana: "This ring isn't a cudgel, you barbarian, it's something else... something much more important. The Covenant were right... this ring... it's Forerunner. Give me a second to access... yes, the Forerunners built this place, what they called a "fortress world", in order to... no, that can't be. Oh, those Covenant fools, they must have known, there must have been signs!"

Master Chief: "Slow down. You're losing me."

Cortana: "The Covenant found something, buried in this ring, something horrible, and now... they're afraid."

Master Chief: "Something buried? Where?"

Cortana: (looks horrified) "The Captain, we've got to stop the Captain!"

Master Chief: "Keyes? What do we—"

Cortana: "The weapons cache he's looking for. It's not really— We can't let him get inside!"

Master Chief: "I don't understand."

Cortana: "There's no time. Get out of here, find Keyes, stop him! Before it's too late!"

{The Chief turns and runs from the Control Room.}



  • At the very beginning of the level, "Press X/E to enter side seat of Pelican" will appear. The player will be placed back on the Pelican and can get off at any time. However, if you don't get out the Pelican, it will crash and you will die. This is known as the Pelican Death Glitch.
  • It is possible to achieve the usage of a Banshee before you reach the end of the stage when you are expected to use the banshee provided. Here are the steps in order to perform the glitch:
  1. After you meet up with your fellow marines and receive the tank, there is a platform high above the narrow path to the left of the cave. Notice that it is the same platform you fly up to at the end of Two Betrayals. Atop the platform sits a Banshee and an Elite Minor. Take the rocket launcher and the sniper rifle that was given to you with the Warthog and aim at the bottom of the platform. 
  2. Aim with the sniper rifle at the bottom-middle of the platform. You will notice two black lines. Aim right before the second black line (closest to the wall). Note: The exact position that springs the banshee off the platform when shot at varies from time to time, but it is in this general area.
  3. Without moving the joystick (mouse for PC/Mac), take out your rocket launcher and fire. If the banshee does nothing, stay persistent and keep shooting in that same area. Eventually, the banshee will spring off the platform and you will be able to fly throughout the stage
  4. The second position where you can stand and shoot is on the small cliff adjacent to the ice pond, where a Shade sits as well as a Wraith. However, if you go past the ice pond walking towards the underground pathway, the Elite will fly his banshee off the platform and you will not be able to use it. Standing on the little cliff where the Shade is, aim at the exact area at the bottom of the platform and fire your rocket launcher. Using a tank to get it down will not work. You must use a rocket launcher.
Click here for a video demonstration:
When you use the banshee throughout the rest of the stage, you will skip over several checkpoints. Enemies and ammunition from fallen Marines will not load for the rest of the level and the Marines that follow you will freeze if you fly ahead too fast and pass a "Loading...done" point. Also, you will be able to fly to the beginning of the stage if you weave your way through the early hallways with your banshee,  You can then fly down where the Pelican Death Glitch takes place. You can only go down a certain distance.
Click here for a video demonstration:
  • If you manage to jump off the first bridge without going through the tunnel and live, you are able to go through the whole level without the Covenant attacking you. Although, eventually you will come upon a locked door and will need to restart the level or backtrack using the Banshee found at the end of the last open area prior to the final open area to fully complete it. The Banshee is necessary because you need a way back to the bridge. It is possible to take the Banshee and land on top of the bridge with enough momentum to throw the Banshee off causing it to be waiting for you once you have taken the long interior route down. Click here for a video demonstration:
  • If a Grunt is killed on one of the ledges throughout the level, its shadow will often appear on the floor below the ledge despite the fact that the ledge is between the Grunt and the floor.
  • There is a glitch if you melee a grunt whilst he is sleeping and also being in a tight space the grunt will look like it's falling but will and will not stop even if you grenade it. This will stop eventually as if the grunt has hit the bottom of what it was falling down.[1]
  • If you manage to take the Banshee before the Elites do at the bridge like structure where you get your first glimpse of the control room, you can bring the Banshee through to the Control Room doors. If you open the Control Room doors and then quickly get in the Banshee, and fly in as the cutscene starts, the Banshee will continue forwards and kill Master Chief; but the cutscene will progress normally. This shows a dead Master Chief conversing nonchalantly with Cortana. If the Banshee doesn't reach the required speed, it will simply come to a halt behind the Chief.
  • By jumping at the right point, it is possible to board Fire Team Zulu's Pelican. It flies down, drops off the Warthog, then flies along the canyon. It crashes near to but not right on top of the preexisting Pelican wreck.
  • On several occasions on the first bridge, if a Shade is thrown off by a grenade, the shade will get stuck inside the bridge. You can only "Flip" it and it will move around in a circle beneath the bridge. The tip of one of the three legs will be visible.


  • Grunts sleeping in the level will still say their lines (e.g. "He's unstoppable!") when killed silently by Melee.
  • If you cross the bridge in the cavern in a Scorpion tank you will hear the sound of glass breaking, even though the glass on the bridge is unbreakable.
  • The Sergeant of Fire Team Zulu has Staff Sergeant Johnson's voice and model, yet at the time he was with the Captain looking for the weapons cache in the swamp.
  • In the middle of the stage, where the giant pillar rests, behind it you will see an Elite Major running towards his Wraith. You can shoot the Elite before he mans the tank, but you will not be able to use it. It is also possible to flip the Wraith if you ram a Warthog into it, flip it over, and press it X to flip right-side up, but that is all you are limited to do


  • In Halo 3, the mission start point for the final mission, "Halo" is called "Assault on the Control Room".
  • The control room is shaped like the Marathon symbol if you look from a bird's eye view.
  • The first chapter in this level is "I Would Have Been Your Daddy". "I Would Have Been Your Daddy" is a quote Sergeant Johnson says in Halo: Combat Evolved and is the name of one of the skulls in Halo 2 and Halo 3.
  • During the level's ending cutscene, Cortana phases between a pattern of three symbolic colors being green/yellow, blue/crimson, and red/blue. These three color patterns are reference to the colors of the three UESC AI encountered throughout the Marathon franchise, Durandal, Leela, and Tycho.


  • The Three Dead Grunts Easter Egg is found on this level, although it may be exclusive to the PC version of the game.
  • The "Lost Song", which was accidentally left out of the Halo: Original Soundtrack is played on this level in the series of rooms where you fight a group of Stealth Elites and a pair of Hunters, immediately before the rock bridge overlooking the Control Room.
  • The song called Siege of Madrigal can be found at the end of this level. It can be found by flying a Banshee on the second bracket above the Control Room. Land the Banshee on the bracket and walk to the right until you reach the edge. Wait a few seconds and the song will start playing. It can also be found at the beginning if you fly a Banshee down the big shaft and stand on the right spot on the ledges.
  • When you come out of the building onto the ledge in front of the Control Room, a couple of Elites enter Banshees and attack you. If you shoot one of them before he gets in, he will instead shoot at you with his Plasma Rifle. Then, you can take his Banshee and fly directly to the Control Room, skipping a difficult portion of the level.
  • You can skip the last group of Covenant troops behind the last door at the top of the citadel by using a Ghost. To do this, get parallel to the door (do not open it) to where the door is to the left of you. Get a good start to pick up speed and strafe into the door with the Ghost, exit around one second before hitting the door by pressing X/E and the momentum of the Ghost should push you through the door. The mobs on the other side will not notice you and you can finish off the level from there. This makes it easier to pass one of the hardest groups on this level at the highest difficulties are there are usually a few Zealots on Legendary.
  • The level description describes it as a defensive mission, while an assault is the opposite of it. Rather than staying in one place to fend off enemies, you are the assault.
  • In the area you arrive in after coming out of the rocky tunnel, there is a door leading into the central pillar area. Inside can be found an Active Camouflage powerup.
  • This level is considered to be a hub level, as you revisit it in Two Betrayals.
  • It is possible to finish this mission under 13 minutes in coop mode on Easy.



This article uses material from the "Assault on the Control Room (Level)" article on the Halo wiki at Wikia and is licensed under the Creative Commons Attribution-Share Alike License.


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