• 1. Completed the Campaign on Normal difficulty.
  • 2. Completed the Campaign on Heroic difficulty.
  • 3. Completed the Campaign on Legendary difficulty.
  • 4. Completed every mission in Halo: Reach alone, on Legendary.
  • 5. Completed the 2nd mission on Normal or harder.
  • 6. Completed the 3rd mission on Normal or harder.
  • 7. Completed the 4th mission on Normal or harder.
  • 8. Completed the 5th mission on Normal or harder.
  • 9. Completed the 6th mission on Normal or harder.
  • 10. Completed the 7th mission on Normal or harder.
  • 11. Completed the 8th mission on Normal or harder.
  • 12. Completed the 9th mission on Normal or harder.
  • 13. Completed the 10th mission on Normal or harder.
  • 14. Cleared the 2nd mission without setting foot in a drivable vehicle.
  • 15. Killed 2 vehicles at once with the Target Locator in the 3rd mission.
  • 16. Hijacked a Banshee during the Reach Campaign.
  • 17. Killed the Elite Zealot before he escaped during the 5th mission.
  • 18. Performed an Assassination against an Elite to survive a fall that would’ve been fatal.
  • 19. Destroyed the Corvette’s engines & escort in under 3 minutes in the 6th mission on Heroic or harder.
  • 20. Finished the 9th mission on Legendary with the Scorpion intact.
  • 21. Earned a Triple Kill while Jetpacking in Campaign, Firefight or Matchmaking.
  • 22. Killed 7 Moa during the 2nd mission of the Campaign.
  • 23. Killed 3 of the anti-aircraft batteries during the 8th mission.
  • 24. Used a Health Pack to replenish life after taking body damage.
  • 25. Performed an Assassination on an enemy.
  • 26. Killed 10 enemies in a Firefight or Campaign session with the M6G pistol.
  • 27. Killed 10 enemies in a Firefight or Campaign session with the DMR.
  • 28. Traded weapons with an AI ally in Campaign.
  • 29. Killed 10 enemies in Firefight or Campaign with a supercombine explosion.
  • 30. Let a teammate spawn on you 5 times in an Invasion Matchmaking game.
  • 31. Earned a First Strike Medal in a Matchmaking game.
  • 32. Won a game of Invasion in the 1st phase.
  • 33. Earned a Killing Spree in multiplayer Matchmaking.
  • 34. Earned a Killionaire medal in Firefight.
  • 35. As an Elite, killed 5 Spartan players in Matchmaking.
  • 36. Scored 15,000 points in Score Attack Firefight Matchmaking.
  • 37. Scored 50,000 points in a Firefight game.
  • 38. Scored 200,000 points in a Firefight game.
  • 39. Scored 1,000,000 points in a Firefight game.
  • 40. Completed a Firefight set on Legendary without dying.
  • 41. Purchased an item from the Armory that required the rank of Lt. Colonel.
  • 42. Reached the rank of Corporal in the UNSC.
  • 43. Reached the rank of Captain in the UNSC.
  • 44. Used the File Browser to upload a file to your File Share.
  • 45. Completed all of the Daily Challenges in a given day.
  • 46. Purchased an item from the Armory.
  • 47. Recommended a file to someone.
  • 48. Advanced a Commendation to a Silver state.
  • 49. Completed a Weekly Challenge.