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LB's "Halo 3" Walkthrough and Strategy Guide
Chapter 8 - Cortana


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Chapter 8 - Cortana

0. Introduction
1. Chapter 1 - Sierra 117
2. Chapter 2 - Crow's Nest
3. Chapter 3 - Tsavo Highway
4. Chapter 4 - The Storm
5. Chapter 5 - Floodgate
6. Chapter 6 - The Ark
7. Chapter 7 - The Covenant
8. Chapter 8 - Cortana
9. Chapter 9 - Halo
10. Multiplayer
11. Skulls and Terminals

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Chapter 8 - Cortana



Rampant



Find Cortana



This is, by far, the most difficult mission yet. It will require nerves of steel, lots of hiding to recharge your energy shield, and skill at Melee attacks.

You begin this mission with a Shotgun and the Assault Rifle. Head forward and shoot the Flood bugs with the Shotgun. As you enter the first cavern one Flood enemy after another will drop down and attempt to attack you. Shoot each one in the head with the Shotgun. Some may require more than one shot. If they get too close to you, use the Melee attack.

Go through the circular door and you'll hear High Charity talk to you.

Checkpoint.

Move forward and drop through the circular door in the floor. Cortana will chime in with some cries or is that hysterical laughter. Move forward and grab the Bubble Shield and Brute Shot. Use the Brute Shot on the enemies as they come down the tiers to you. All but the Energy Sword enemy will be able to be dropped with one shot (aim for the head). To kill the Energy Sword enemy, fire a few Brute Shots at him and then finish him off with a Melee attack.

Grab his Sword so that you have the Energy Sword and Brute Shot. Make your way up the left side of the tiers/terraces along the path. You'll encounter several Pod Heads (which explode and release a slew of Bugs). Stand back and use the Brute Shot on each one. Do your best to clear out the Bugs.

As you make your way up that left side path you'll get a checkpoint.

Checkpoint.

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At the top of the path you'll trigger another round of enemies. As soon as you see them coming run back down the path for cover and use the Brute Shot to take them out as they come to you. When they're gone, move up the path again and take out any remaining enemies, like the Flood Hunters (I call them this because they take a few hits to go down and always travel in pairs, like Hunters) and the Spiders.

It is in your best interest to take out as many Spiders as you can now because soon they'll climb the wall and turn into Spider Snipers, shooting yellow/green beams at you.

Spider Snipers and Regenerating Flood: Spider Snipers are a real hazard throughout this level. They crawl on ceilings and walls, deploy, and then fire at you a green/yellow beam (actually kind of a Needler crystal from their tail). If a few of them are firing on you at once there is little chance of survival.

The only way you can kill them is to use Flames, Grenades, the Needler, or Melee attacks. Anything else will make them go into their shell which does have the effect of them not firing on you for a few seconds.

In general, as you make your way through this mission, you'll want to take out any immediate threats, like charging Flood, and then carefully and strategically take out the Spider Snipers.

Speaking of Flood, pay attention to Flood that you shoot. Even though they may be on the ground it doesn't mean that they're dead. If you see their body blow to bits, say, with a Brute Shot hit, they're dead. However, if you don't see this it's a good idea to Melee attack them while they're on the ground to finish them off.

Again, Flames, Grenades, the Needler, and Melee attacks are the most effective attacks against them.


Note, on the left you can exit outside to find a downed Pelican. Near it is a Shotgun and a Rocket Launcher (on Normal). Keep this area in mind because you'll need to get here later.

Continue forward and drop down the small ledge into the next area. Three or four flood will come at you from a small cavern on the right. Use the Energy Sword on them and then enter that tunnel for cover.


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It is here that you'll really get your first taste to how you can be pinned down by the Spider Snipers. Continue to pop out to Energy Sword any enemies and then locate any Spider Snipers that are firing down at you. Use whatever you have, I had the Assault Rifle, to fire at the Spider Snipers on the wall. This will cause them to temporarily hold their fire.

At this point, make a run for it along the right side of the cavern and up the path. Jump over the three Pod enemies and quickly go through the circular door.

You'll hear some more words from High Charity.

Checkpoint.

Continue forward along the path for more High Charity and Cortana conversation.

Go through the next door and continue along the path. You'll be attacked by more Flood. Use the Energy Sword on them, which is probably close to being out of charges. If and when it is, grab the Brute Shot and head up the path.

Checkpoint.

Follow the path to the end and drop down through the hole in the ground.

This cavern is the first really tough part of this level. After dropping through the hole grab the Energy Sword on the ground so that you have it and the Brute Shot.

Quickly run forward and hang a left taking cover behind the blue glowing generator. Here you'll find Deployable Cover. Use it to seal off the left side of the generator so that you won't be surprised by any enemies.

From this position of cover you can peek out the left side of the generator and toss grenades into the Flood that have congregated. During this time, keep an eye on your radar to make sure nobody is coming from the other side.

You'll also note that at this time you are pretty much pinned down by Spider Sniper fire...boy do I hate these guys. When you have four or five of the Flood taken out, you can leave the friendly confines of the blueish generator and move forward to the glass blast shield in front of the generator.

Taking up position here allows you to quickly run out, use your Energy Sword on a Flood or a fallen Spider Sniper and then run back for cover. When things are relatively quiet, facing the blast shield, drop off the platform to the left and then take a left to find a blue lit side-hallway.

Go to the end of it and look down to see a gathering of enemies. If you have any grenades, toss them down at them. Otherwise, attempt to get them to come to you by antagonizing them with whatever you have (Assault Rifle, Brute Shot, etc.) and then switch to the Energy Sword to finish them off.

When they're dead, drop down out of this side hallway and go right. Locate the entrance to the circular room underneath the central platform. In this under-room you'll find all sorts of goodies. First, however, kill any Flood who come in.

When there are no more threats collect the Gravity Hammer (or keep the Energy Sword), the Brute Shot, and Deployable Cover. If you fancy it, you could also grab a Needler or a Carbine. It's a really nice room in such an awful place.

By this point most of the enemies should be dead. If not, go ahead and grab that Needler and take out any remaining enemies. Then, re-grab the Brute Shot.


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To locate the next path go to the top of the central circular platform. Locate and walk forward down the little extension ramp. As you drop off of it the entrance to the next path is directly in front of you. Go up it.

Checkpoint.

Follow the path forward, pass by the two Pod enemies, and you'll soon find yourself in a very difficult area. As you enter the area look to the right to find part of ship that you can enter (it's sort of a purplish side hallway). Inside are two Grenades and, more importantly, the Flamethrower.

Step out from the ship and use this hallway as your base of operations. One Flood after another is going to come at you. Blast each one with a pulse of your Flamethrower (one quick pulse will do it) and then run back into the inside room where you got the Flamethrower while you wait for each Flood to die.

After about six to eight of them you can start testing the waters, as it were, by stepping out of the hallway just a bit to see what's going on. You're path is the one to the right (you came from the left). There are a plethora of Spider Snipers in the area and more Flood that will come down that path.

Don't stay out in the middle of this area for too long or the Spider Snipers will lay into you. Do your best to try and trigger some more Flood to follow you into your death trap area. If this isn't happening, then head up the right path just a tad and use the Deployable Cover on the pathway.

Run back to cover. Placing the Deployable Cover there allows you to take refuge from the Spider Snipers if things are getting hairy. It should also be far enough up the path that more Flood are triggered. Again, run back to the hallway and use the Flamethrower on them.

You'll know that you're almost done with Flood when you see/kill the two Flood who have Plasma Rifles. When they're dead start making your way up the path.

It's time to deal with the Spider Snipers. These guys move around a lot and are usually on walls and ceilings. I found that by sticking to the left side of the path (right at the start of the path) there is some natural cover for you. Stay left and try to shoot any Spider Snipers you see.

Of course, use the Flamethrower on them. If you have Plasma or Spike Grenades you can use them, too. If you have the Needler, use it. Otherwise, you're going to have to Melee them.

Melee them on the ceiling? Yes, that would be difficult. However, the Spider Snipers seem to drop down to attack you when you get near and/or under them. You can also make them come down by shooting them with a weapon like the Plasma Rifle. In this manner, by slowly moving forward up the path, you can get one or two to drop in on you. At this point, Melee them.

If they're are really bothering you and you're having no success in killing them then you can shoot them to make them go into their shell, which temporarily causes them not to fire. Then, you can make a run for it up the path, however, there may be several Flood remaining so be careful.

Another option for you is to backtrack down the path (which, granted, does have some enemies) to the circular room under the central platform. You can grab a Needler which will kill the Spider Snipers.

Other than the above advise and strategies for getting up this path you'll also want to make sure to hide (either behind the Deployable Cover or in the hall/ship) anytime you are damaged. There is no shame in running out, Flaming a few enemies, and running back in to hide. A Master Chief has to do what a Master Chief has to do.

When you finally have the path clear, go up and through the door at the end of the path.

Checkpoint.

This next room is also nasty, but not as bad as the last one. This room has two curving tunnels on the right side, one before the other. As soon as you enter the room, move forward a touch and look to the right and enter the tunnel (there are two entrances). From the cover of this tunnel use Melee attacks or whatever you have to kill the Flood that come in.

After they stop coming, exit the cave and run to the next tunnel/cave on the right. Inside this one you'll find an Energy Sword. If you don't have one, grab it. Using the cover of this cave take out the half-dozen or so Flood that come to attack you while being aware that a Spider Sniper (in normal spider bug mode) may also attack you from behind.

When things are calm other than three to five Spider Snipers, exit the cave and run forward and up to the upper path. Here you'll have to take out a few more Flood, but more importantly, you'll find a Needler (and a Cloaking device if you want it).

Use the Needler to take out any remaining Spider Snipers and clear the rest of the area of Flood using the Energy Sword.

When the area is clear, grab the fresh Energy Sword (if you haven't already) and grab the Brute Shot at the end of the same tunnel as the Energy Sword.

Getting out of this room can be a bit confusing. Head up to the upper area once more (where you got the Needler) and proceed forward along the path (yes it does keep going). You'll eventually get to a metal extension platform. Use it to jump the gap. Follow the path all the way around to the door, killing a Flood or two along the way.

Before the door, be sure to grab more Brute Shot ammo. Go through the door.

Checkpoint.

Continue forward, pass through some water, listen to some Cortana and go through the next door.

Checkpoint.


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Now you're getting somewhere. You've reached the large inner cavern of the ship. Turn right and make your way down the path killing Flood and Spiders using the Energy Sword. You should have no problem just tearing through them. When you reach the end of the path, turn around and backtrack looking for the bridge leading to the central area.

Cross over the bridge, kill the Flood and Spiders in the middle, and then continue across the next bridge to the next side path.

Checkpoint.

Follow the path and go through the metal door (with blue lights). Go down this hallway for more High Charity and Cortana talk.

Checkpoint.

Go through the door and continue down the hallway, going through doors.

You'll soon reach a room with a glowing blue dome. Go up to it and hit "B" to "breach the stasis field". Ah, Cortana.

Nor Hell a Fury...



Destroy the Reactor



Cortana is now inside your helmet. Backtrack out and High Charity will express his anger. Back in the large inner cavern turn left and take out the Flood and the two Spider Snipers. Turn around and kill another Flood.

At this point you'll want to clear out the entire cavern. This side should be clear now. Switch to the Brute Shot and use it to take out the Flood on the middle platform. Then, use grenades (fire grenades if you have them) on any Spider Snipers you see on the middle platform.

When it's relatively quiet there, head onto the middle platform and finish off any remaining enemies with the Energy Sword while avoiding Spider Sniper fire from the other side.

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Take cover behind the central terminal (which you'll activate in a moment) and heal. Pop out and use the Brute Shot on any Spider Snipers firing at you to cause them to temporarily stop. Charge across the bridge to that side and use the Energy Sword to slice and dice the Spiders and the Flood.

During this time feel free to use any Cloaking, Deployable Cover, and/or Bubble Shields you need to. Also, to the left of where you exited into the cavern with Cortana, there are two Energy Swords in a weapons pod.

When the area is clear, go up to the central platform and activate it to "expose reactor pylons". Look around to see the three columns of the reactor lower, thus exposing their weak parts. Use whatever you have, I had the Brute Shot, to shoot each of the three columns' exposed parts until they explode.

Checkpoint.

Escape High Charity!



Run through the open door in front of you and you'll find a hole in the ground. Drop down through the hole.

Checkpoint.

You should quickly recognize where you are...in the caverns that you fought through earlier. You need to backtrack to the area with the central platform with the room under it. I had success in both running for it and killing as I went.

Checkpoint.

Either way, when you arrive at the central platform room, take cover in the room under it (your special circular room) until Cortana figures out an alternate route. When she does you'll get a waypoint, which is not far from you.

Follow the arrow to the waypoint and enter the path. Slice the three Flood and then enter the ship part/metal alcove to the right. Wait inside of it until a wall blows open creating a path for you. Follow it to the end and wait for a hole to be blown in the floor at the end of the path. Drop down.

Checkpoint.

Continue running like a man on fire, killing anything in your way. You'll soon get to a circular door on the left at the end of the path (yes, you're still backtracking through caverns where you've already been, although it may be confusing because you didn't see this side of them on the way in).

Checkpoint.

Run past the two Pod heads and continue killing your way to the next door. After you go through it can get a little confusing but soon you'll recognize this area as the top of the tiered/terraced area that you fought up so long ago. Don't go down the tiers, instead, follow the waypoint to the right through the destroyed wall and you'll find yourself outside near a Pelican. Run into the Pelican to end this mission!

Chapter 8 - Cortana - Skulls and Terminals

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