Here is a pre-release copy of the achievements from HALO CE:A. Some of these have changed but a full list ripped from the disk is not yet in circulation.
1.Complete “The Pillar of Autumn” (10)
2. Complete “Halo” (20)
3. Complete ‘Truth and Reconciliation” (20)
4. Complete “The Silent Cartographer” (25)
5. Complete “Assault on the Control Room” (25)
6. Complete “343 Guilty Spark” (30)
7. Complete “The Library” (30)
8. Complete “Two Betrayals” (30)
9. Complete “Keyes” (40)
10. Complete “The Maw” (50)
11. Campaign Complete: Normal (30)
12. Campaign Complete: Heroic (70)
13. Campaign Complete: Legendary (125)
14. Sticky! Sticky!: Stick 10 grunts on any mission (5)
15. Double E kill: Kill 2 Elites with the sniper rifle using 1 bullet (25)
16. All clear: Kill all the enemy on the beach on Silent Cartographer (10)
17. Grunt Spree: Kill 5 Grunts in a row (15)
18. This is a secret achievement: Kill Keyes onThe Pillar Of Autumn (20)
19. This is a secret achievement: Kill all Marines on Truth and Reconciliation (20)
20. Terminal Expert: Find all Terminals (50)
21. Wellthey used to be hunters: Kill 2 hunters with 1 grenade (35)
22.Suicidal: Commit Suicide (5)
23. Its easter!: Find an easter egg (10)
24. Ghost Destroyer: Destroy a ghost (10)
25. Banshee Destroyer: Destroy a banshee (10)
26. This is a secret achievement: Get a shotgun spree (20)
27. Terminal 1: Find your 1st terminal (15)
28. Thats a double: Get a double kill (5)
29. Too easy: Get 10 kills with the Pistol (5)
30. Fellow Marine: Exchange your weapon with a marine (10)
31. Earths 1st flood: Reach your 1st mission with a flood (25)
32. No arms, No pain: Shoot a floods arms off so it cant hert you (20)
33. My arms can hert you: Kill a Flood Infection form by meleeing it (30)
34. Strength inside my vains: Kill a infected Marine or Elite my only meleing it (35)
35. Pure Energy: Kill a Elite holding a Energy Sword (30)
36. Death by water: Die by drowning in water (5)
37. Earning Headshots: Earn 1000 headshots throughout the campaign (80)
