Guide directory

Mission walkthrough

Halo Campaign Evolved: Keyes Legendary Walkthrough

A step-by-step guide for completing the Keyes mission on Legendary difficulty in Halo Campaign Evolved.

Everything needed for normal use is written and illustrated below. The source video is optional verification, not a prerequisite.

Updated

10Illustrated sections
Step-by-step routeReading format

Quick answer

Use the cloaking device to bypass early combat, then navigate tunnels and rooms while avoiding key enemies—especially the grunt with the rocket launcher—and finally reach the shuttle bay to board the Pillar of Autumn.

Guide briefing

Halo Campaign Evolved: Keyes Legendary Walkthrough

Use the cloaking device to bypass early combat, then navigate tunnels and rooms while avoiding key enemies—especially the grunt with the rocket launcher—and finally reach the shuttle bay to board the Pillar of Autumn.

Applies to

  • Halo Campaign Evolved
  • Legendary difficulty
  • Mission 9: Keyes
Room with tank and cloak activation point
Keyes Legendary01 / 10

Target

Activate cloaking device and reach the first checkpoint

Checkpoint
First checkpoint after entering the room with the tank
Landmark
Room with tank and cloak activation point

Do this

  1. 1Enter the room from the start.
  2. 2Turn past the tank to activate the cloak.

Confirmation

Activate cloaking device and reach the first checkpoint is available as described. The cloak allows you to run past enemies into the cave below. It's recommended to kill enemies in the first room before attempting to run past them to avoid respawning far away.

Tunnels filled with carrier enemies
Keyes Legendary02 / 10

Target

Navigate the first tunnel section with carriers while maintaining cloak

Checkpoint
Second area with tunnels full of carriers
Landmark
Tunnels filled with carrier enemies

Do this

  1. 1Run toward the second area with tunnels.
  2. 2Jump over most enemies in the tunnel while cloaked.

Confirmation

Navigate the first tunnel section with carriers while maintaining cloak is available as described. Running past enemies with cloak is faster than fighting. The auto-save is unreliable if you die during this segment.

Room containing multiple tanks and hunters
Keyes Legendary03 / 10

Target

Survive the room with tanks and hunters without engaging combat

Checkpoint
Room with tanks and hunters
Landmark
Room containing multiple tanks and hunters

Do this

  1. 1Enter the room with tanks and hunters.
  2. 2Run past all enemies without stopping or firing.

Confirmation

Survive the room with tanks and hunters without engaging combat is available as described. This section is designed to be bypassed with stealth. The enemies will not actively pursue unless provoked.

Room with a grunt who fires rockets randomly
Keyes Legendary04 / 10

Target

Avoid the grunt with rocket launcher near the final checkpoint

Checkpoint
Final room before checkpoint
Landmark
Room with a grunt who fires rockets randomly

Do this

  1. 1Approach the final room carefully.
  2. 2Wait for the grunt to fire his rocket before moving past.

Confirmation

Avoid the grunt with rocket launcher near the final checkpoint is available as described. You can also try to get lucky like the guide author—run past just as he fires. Alternatively, wait for him to reload.

Gravity lift platform
Keyes Legendary05 / 10

Target

Reach the gravity lift and confirm checkpoint completion

Checkpoint
Gravity lift area
Landmark
Gravity lift platform

Do this

  1. 1Run up the gravity lift.
  2. 2Stand on the platform to mark elites on the map.

Confirmation

Reach the gravity lift and confirm checkpoint completion is available as described. Reaching the lift confirms the checkpoint. The guide recommends doing this to help track elite positions for later sections.

Room with multiple elites and a sword-wielding elite
Keyes Legendary06 / 10

Target

Clear the room with elites and eliminate all enemies

Checkpoint
After clearing the room with elites
Landmark
Room with multiple elites and a sword-wielding elite

Do this

  1. 1Enter the room and engage all enemies.
  2. 2Kill everything in the room to proceed.

Confirmation

Clear the room with elites and eliminate all enemies is available as described. This is the only room where killing is required. The guide notes it takes time but is necessary to advance.

Grav lift exit leading to next room
Keyes Legendary07 / 10

Target

Use fuel rod cannon and eliminate elite with SAR

Checkpoint
After reaching the grav lift and heading upward
Landmark
Grav lift exit leading to next room

Do this

  1. 1Head up the grav lift.
  2. 2Look for the fuel rod cannon and use it to take out the elite with SAR.

Confirmation

Use fuel rod cannon and eliminate elite with SAR is available as described. After eliminating the elite, you can proceed to the ship’s control room. The guide notes the battleet is chaotic and schematics are inaccessible.

Lower corridor with flood enemies
Keyes Legendary08 / 10

Target

Drop down safely and navigate to the shuttle bay

Checkpoint
After dropping down into the lower section
Landmark
Lower corridor with flood enemies

Do this

  1. 1Drop down after reaching the upper level.
  2. 2Run past enemies to the next section.

Confirmation

Drop down safely and navigate to the shuttle bay is available as described. The guide states that once you drop down, you are safe from immediate threats. Use this to regroup before the next combat zone.

Room with elite with rocket launcher
Keyes Legendary09 / 10

Target

Eliminate enemies in the next room and collect rocket launcher

Checkpoint
After clearing the room with elites and flood
Landmark
Room with elite with rocket launcher

Do this

  1. 1Enter the room and kill some enemies to draw attention.
  2. 2Take the rocket launcher from the elite after clearing the area.

Confirmation

Eliminate enemies in the next room and collect rocket launcher is available as described. The rocket launcher is useful for the upcoming wave of enemies. The guide advises finishing off remaining flood before proceeding.

Shuttle bay with Pillar of Autumn
Keyes Legendary10 / 10

Target

Reach the end of the mission by boarding the ship

Checkpoint
End of the mission
Landmark
Shuttle bay with Pillar of Autumn

Do this

  1. 1Wait for doors to open and clear the path.
  2. 2Jump onto the ship as it stops and grab a Banshee.

Confirmation

Reach the end of the mission by boarding the ship is available as described. The guide recommends waiting for the ship to stabilize before jumping on. Once aboard, you can immediately grab a Banshee to finish the mission.

Optional source verification

The written guide is complete on its own. Open the original moving source only when you want to compare timing or motion.

Open source