343 Industries, developer željno iščekivanog novog nastavka Halo serijala, objavio je listu achievementa koja otkriva nekoliko naznaka o sadržaju igre.

Sama kampanja sastoji se od osam misija, čije će završavanje otključati uobičajene nagrade ovisno o razini težine. Ponovno ćemo morati pronalaziti terminale, a tu su i specifični zadaci koje će trebati ispuniti unutar svakog poglavlja za povećani gamerscore, kao što je pronalazak i pristup zapisu Master Chiefa u prvoj misiji.

Spartan Ops misije također će davati dio nagrade, a među njima je i RvB easter egg namijenjen fanovima za otkrivanje.

Primarni cilj kreiranja achievementa za Halo 4 bio je nagraditi velike rezultate, te povećati replay value balansirajući težinu i širinu različitih modova unutar igre, a sporedni cilj bio je nastaviti tradiciju Haloa sa bizarnim nazivima pojedinih achievementa kao što su Bropocalypse ili Dongblainer. Dok se može spekulirati o pravoj prirodi pojedinih achievementa, ovdje možete pogledati njihov osnovni opis unutar igre.

1. Dawn – Complete Mission 1 on any difficulty (10G)
2. Requiem – Complete Mission 2 on any difficulty (10G)
3. Forerunner – Complete Mission 3 on any difficulty (10G)
4. Infinity – Complete Mission 4 on any difficulty (10G)
5. Reclaimer – Complete Mission 5 on any difficulty (10G)
6. Shutdown – Complete Mission 6 on any difficulty (10G)
7. Composer – Complete Mission 7 on any difficulty (10G)
8. Midnight – Complete Mission 8 on any difficulty (10G)
9. Wake up John – Complete the Campaign on Normal or harder (20G)
10. I Need a Hero – Complete the Campaign on Heroic or harder (40G)
11. The Legend of 117 – Complete the Campaign on Legendary difficulty (70G)
12. Lone Wolf Legend – Complete the Campaign solo on Legendary difficulty (90G)
13. Skullduggery – Complete any Campaign mission with 3 or more Skulls on Heroic or harder (15G)
14. Bropocalypse – Complete any Campaign mission co-operatively on Heroic or harder (10G)
15. Bromageddon – Complete the Campaign co-operatively on Heroic or harder (40G)
16. Contact the Domain – Find a Terminal in the Campaign (10G)
17. Terminus – Find all of the Terminals in the Campaign (50G)
18. Digging up the Past – In Mission 1, find and access Chief’s record (20G)
19. Midnight Launch – In Mission 2, get significant air in the Warthog at midnight (20G)
20. This is my Rifle, this is my Gun – In Mission 3, carry a UNSC weapon all the way through on Heroic or harder (20G)
21. Bros to the Close – Make it through Mission 4 without one preventable Marine death on Heroic or harder (20G)
22. Mortardom – In Mission 5, hijack a Wraith and use it to kill at least four enemy Wraiths on Heroic or harder (20G)
23. Explore the Floor – In Mission 6, trick or force a Hunter to fall to his demise (20G)
24. Give Him the Stick – In Mission 7 in solo Campaign, take out both Hunters using only the Sticky Detonator (20G)
25. Chief, Smash! – In Mission 8, kill 3 Crawlers in one hit with the Gravity Hammer (20G)
26. Not Some Recruit Anymore – Rank up your Spartan-IV to SR-5 (15G)
27. Movin’ on Up – Rank up your Spartan-IV to SR-20 (30G)
28. I ♥ Red vs Blue – Win 5 War Games matchmaking matches (10G)
29. The Dongblainer – Win 20 War Games matchmaking matches (30G)
30. Operation Completion – Complete a Spartan Ops Mission on any difficulty (15G)
31. A Legendary Episode – Complete all chapters in Spartan Ops Episode 1 on Legendary difficulty (40G)
32. Dedicated to Crimson – Complete all chapters in the first 5 episodes of Spartan Ops on any difficulty (80G)
33. Crimson Alone – Complete a Spartan Ops chapter solo on Legendary (20G)
34. Roses vs Violets – Find one of the RvB Easter Eggs in Spartan Ops (20G)
35. Rescue Ranger – Save at least one Marine in Chapter 3 of Episode 2 of Spartan Ops on Heroic or harder (20G)
36. Knight in White Assassination – Assassinate a Knight in any Spartan Ops mission (20G)
37. What Power Outage? – Complete Chapter 4, Episode 5 of Spartan Ops without losing a generator on Heroic or harder (20G)
38. No Easy Way Out – In Ch 1, Ep 5 of Spartan Ops survive all enemy waves during the defense on Normal or harder (20G)
39. The Challenged – Complete a Challenge (10G)
40. The Challenger – Complete 25 Challenges (20G)
41. Armorer – Change your Spartan’s armor in the Spartan Armor card (5G)
42. Badge – Change your Emblem in the Spartan ID card (5G)
43. PWND – Change your Service Tag in the Spartan ID card (5G)
44. What a Poser! – Change your Spartan’s pose in the Spartan ID card (5G)
45. The Cartographer – Create and save a Custom Map in Forge (5G)
46. Game Changer – Create and save a Custom Game type in War Games (5G)
47. Snapshot! – Save a Screenshot from the Theater (5G)
48. The Director – Save a Film Clip from the Theater (5G)
49. Sharing is Caring – Upload a File to your File Share (5G)