1. Jorge's death

Jorge's death in Halo: Reach is one of the most emotional and poignant moments in the game. As a member of Noble Team, Jorge-052 is a towering figure and the team's heavy weapons specialist. His death comes during the mission Long Night of Solace, where he makes the ultimate sacrifice to ensure the success of the mission and protect his team.
Jorge, being the only Spartan-II on Noble Team, is known for his strength, wisdom, and deep sense of duty. His decision to stay behind and detonate the slipspace bomb on the Covenant supercarrier, Long Night of Solace, is driven by a sense of responsibility. He recognizes that the only way to stop the Covenant's forces from continuing their attack on Reach—and to give Noble Team a chance to escape—is for him to sacrifice himself.
In a game filled with tragic moments, Jorge's death stands out because of his selflessness. He willingly sacrifices his life for the greater good, and his final words, "Tell 'em to make it count," reflect his unwavering dedication to his comrades and his mission. His death marks a turning point in the story, as it highlights the desperate, hopeless situation the Spartans face in the fight against the Covenant.
2. Noble 6's death

Noble Six, the protagonist of Halo: Reach, is one of the most mysterious and tragic characters in the Halo franchise. Known as Spartan-B312, Noble Six is a member of Noble Team and the player character throughout the game. Unlike other Spartans, much of Noble Six’s background and personality remain deliberately ambiguous, which adds to the sense of mystery surrounding the character.
The most significant aspect of Noble Six's role in Halo: Reach is their tragic fate. Six’s death occurs at the end of the game during the mission The Pillar of Autumn, just before the events of Halo: Combat Evolved. After the destruction of Reach, Six stays behind to allow the rest of Noble Team and the survivors to escape. In the final moments, Noble Six faces overwhelming odds, fighting off Covenant forces to ensure the mission’s success, knowing that their death is inevitable.
Noble Six’s sacrifice makes them a lasting and iconic figure in the Halo universe, representing the courage and selflessness of the Spartans. Their death also serves as a tragic prelude to the events of Halo: Combat Evolved, where Master Chief is found drifting in space, setting the stage for the beginning of the next chapter in the Halo saga.
3. Emile's death

Emile-A239, another member of Noble Team in Halo: Reach, stands out for his tough, no-nonsense attitude and his striking appearance. Emile is a Spartan-III, known for his aggressive combat style and his distinctive helmet, which features a skull etched into it. He is also one of the more memorable characters because of his personality and behavior, often acting as a bit of a wildcard within the team.
Emile’s death is another tragic and emotional moment in Halo: Reach. During the mission The Pillar of Autumn, Emile meets his end while attempting to hold off Covenant forces on the surface of Reach. He faces overwhelming odds in a last-ditch effort to protect his team and ensure their escape. Before his death, Emile displays a characteristic bravado, maintaining his tough exterior even in the face of certain death.
Emile’s end is a poignant part of the story of Halo: Reach, as it underscores the sacrifices made by the members of Noble Team. His death contributes to the game's somber tone, marking a brutal reality where even the toughest warriors are not immune to the overwhelming power of the Covenant.
4. Johnson's death

Sergeant Major Avery Junior Johnson’s death in Halo 3 is one of the most emotional moments in the Halo franchise. He dies at the end of the game while helping the Master Chief and the Arbiter activate Installation 04B (a replacement Halo ring) to stop the Flood.
As they try to fire the ring, 343 Guilty Spark, the Monitor of the ring, betrays them. He fatally wounds Johnson with a powerful energy blast to prevent them from activating it prematurely. Despite his injuries, Johnson gives Chief his Spartan Laser, urging him to "Send me out... with a bang" before succumbing to his wounds.
His death is significant because he was one of the most beloved characters, providing comic relief and leadership throughout the series. What do you think of his death? Did it hit hard for you?
5. Cortana's death

During the final mission, “Midnight,” the Master Chief infiltrates the Didact’s ship to stop him from using the Composer, a Forerunner device that turns humans into digital slaves. After Chief plants a grenade on the Didact, Cortana, who has been experiencing rampancy (a form of AI deterioration), uses the last of her strength to protect him.
As the Composer is destroyed, Chief finds himself in a glowing, digital space where Cortana appears one last time. For the first time, she manifests physically, gently touching his armor. She tells him, “I’ve waited so long to do that.” Accepting her fate, she reassures him before fading away, leaving Chief alone.
This moment is heartbreaking because their relationship had grown beyond soldier and AI—Cortana was Chief’s closest companion. Her loss deeply affects him in Halo 5: Guardians, where he refuses to believe she’s truly gone.