Quick answer
Complete the 8-target campaign walkthrough involving dome escape, Brute Captain management, ambush survival, heavy resistance, team coordination, secure zone control, direct confrontation with the Brute Captain, and Marine rescue.
Guide briefing
Jiralhanae Conservationist Achievement Guide for Halo Campaign Evolved
Complete the 8-target campaign walkthrough involving dome escape, Brute Captain management, ambush survival, heavy resistance, team coordination, secure zone control, direct confrontation with the Brute Captain, and Marine rescue.
Applies to
- — Halo Campaign Evolved
- — Jiralhanae Conservationist achievement
- — Dome combat sequence

Target
Survive initial combat and reach the secure area
- Checkpoint
- Dome exit point
- Landmark
- Dome interior
Do this
- 1Follow orders to evacuate the dome while avoiding enemy fire.
- 2Engage Jiralhanae enemies as they emerge from containment.
Confirmation
Survive initial combat and reach the secure area is available as described. The mission begins with a directive to escape the dome, followed by immediate combat with Jiralhanae.

Target
Keep Brute Captain caged and angry
- Checkpoint
- Combat engagement zone
- Landmark
- Dome corridor
Do this
- 1Maintain control of the Brute Captain using containment measures.
- 2Prepare for expected combat as enemies approach.
Confirmation
Keep Brute Captain caged and angry is available as described. The Brute Captain is explicitly mentioned as part of the plan to keep enemies caged and angry.

Target
Avoid trap and survive enemy assault
- Checkpoint
- Ambush location
- Landmark
- Dome chamber
Do this
- 1Respond to sudden enemy appearance with tactical caution.
- 2Use available cover and coordinate with squad members.
Confirmation
Avoid trap and survive enemy assault is available as described. A trap is identified, and the team is warned to be careful before the enemy appears.

Target
Hold position against overwhelming force
- Checkpoint
- Combat line
- Landmark
- Dome exterior access
Do this
- 1Use heavy weapons and support units to repel waves.
- 2Maintain communication and coordinate fire support.
Confirmation
Hold position against overwhelming force is available as described. The team uses PR machines and calls for assistance during heavy resistance.

Target
Find and secure critical locations
- Checkpoint
- Split-up coordination point
- Landmark
- Dome interior junction
Do this
- 1Divide into teams and move toward designated areas.
- 2Confirm presence of enemies and prepare for engagement.
Confirmation
Find and secure critical locations is available as described. Team splits up to cover more ground, with instructions to report findings.

Target
Establish control over secured area
- Checkpoint
- Secure zone
- Landmark
- Dome inner chamber
Do this
- 1Enter secured area and confirm enemy presence.
- 2Initiate suppression and clear remaining threats.
Confirmation
Establish control over secured area is available as described. The area is described as 'very secure', and enemies are confirmed to be present.

Target
Engage and defeat Brute Captain
- Checkpoint
- Final confrontation
- Landmark
- Dome central platform
Do this
- 1Approach the Brute Captain while maintaining distance.
- 2Use precise targeting and coordinated fire to disable him.
Confirmation
Engage and defeat Brute Captain is available as described. The Brute Captain taunts the player, indicating direct engagement is required.

Target
Extract survivors and finish operation
- Checkpoint
- Extraction point
- Landmark
- Dome exit corridor
Do this
- 1Locate and assist trapped Marines.
- 2Clear remaining enemies and reach the extraction point.
Confirmation
Extract survivors and finish operation is available as described. The team identifies the need to rescue Marines and moves quickly to do so.