Halo; reach X box

In "Halo: Reach," players experience the fateful moments that forged the "Halo" legend. It's the story of Noble Team, a squad of heroic Spartan soldiers, and their final stand on planet Reach, humanity's last line of defense between the terrifying Covenant and Earth. This darker story is echoed by grittier visuals amid a backdrop of massive, awe-inspiring environments. Characters, enemies and environments are rendered in amazing detail by an all-new engine designed to deliver epic-scale encounters against the cunning and ruthless Covenant.

Unlockable	How to Unlock
Carter's Helmet	Clear a Campaign mission on Legendary without dying.
Emile's Helmet	Earned a Bulltrue medal in either multiplayer or Firefight Matchmaking.
Jorge's Helmet	Earn a Killtacular in multiplayer Matchmaking.
Jun's Helmet	Kill 100 enemies in a row without dying in either the Campaign or Firefight.
Kat's Helmet	Avenged a teammate's death in multiplayer Matchmaking

 Easter Egg: Change Club Errera's Music and Brute Dance Party
In Mission 7, you can change the music to the tracks "Never Surrender" and "Siege of Madrigal" in Club Errera. During Mission 7, once you get to the Club Errera part of the mission, head back to the hospital. Fly to a ledge below the usual entrance. If you chose the right one, when you get out you should see a green light. Once found, activate it and go back to Club Errera. Land and when you walk in the song "Never Surrender" will be playing. If you want to change the music again, go back to your Falcon and fly to the roof of Club Errera. Guess what, there's another switch. Activate it and the song "Siege of Madrigal" will now be playing. If you return to the dance club after you clear it out (Hunters included) then a Brute DJ will be spinning records, a Brute tends the bar and Grunts get freaky.

 Master Chief Cameo
Upon completing the final level (The Pillar of Autumn), you will see a cut-scene of the ship taking off. When the cut-scene starts, hold your aiming stick (it will be dependent on your control scheme) so that you would "turn right" normally. At the point when the UNSC shuttle docks at the Pillar of Autumn's landing bay, the camera will move to the right (if you were holding the stick to aim right) and catch a shot of a Spartan in a capsule. Should look familiar, right?