(20) Landfall – Finish the 1^st mission of the campaign on Normal, Heroic, or Legendary.

(20) Holdout – Finish the 2^nd mission of the Campaign on Normal, Heroic, or Legendary.

(20) The Road – Finish the 3^rd mission of the Campaign on Normal, Heroic, or Legendary.

(30) Assault – Finish the 4^th mission of the Campaign on Normal, Heroic, or Legendary.

(30) Cleansing – Finish the 5^th mission of the Campaign on Normal, Heroic, or Legendary.

(30) Refuge – Finish the 6^th mission of the Campaign on Normal, Heroic, or Legendary.

(40) Last Stand – Finish the 7^th mission of the Campaign on Normal, Heroic, or Legendary.

(40) The Key – Finish the 8^th mission of the Campaign on Normal, Heroic, or Legendary.

(50) Return – Finish the final mission of the Campaign on Normal, Heroic, or Legendary.

(125) Campaign Complete: Normal – Finish the Campaign on Normal

(125) Campaign Complete: Heroic – Finish the Campaign on Heroic

(125) Campaign Complete: Legendary – Finish the Campaign on Legendary

(10) Iron – Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull

(10) Black Eye – Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull

(10) Tough Luck – Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull

(10) Catch - Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull

(10) Fog - Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull

(10) Famine - Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull

(10) Thunderstorm - Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull

(10) Tilt - Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull

(10) Mythic - Finish the Campaign on Normal, Heroic, or Legendary, then find and claim this skull

(10) Graduate – Earn 5 EXP or finish 10 games to comlete the requirement for Basic Training (Online)

(15) UNSC Spartan – Ear your Sergeant rating to be recognized as a true Spartan (Online)

(25) Spartan Officer – Advance to the Spartan Officer ranks (Online)

(5) Two for One – Score a Double Kill with a single Spartan Laser shot in a ranked free for all playlist (Online)

(5) Too Close to the Sun – Destroy an enemy Banshee with a Spartan Laser or Missile Pod in a ranked playlist or in Campaign

(5) Triple Kill – Kill 3 enemies within 4 seconds of one another in a ranked free for all playlist (Online)

(5) Overkill – Kill 4 enemies within 4 seconds of one another in a ranked free for all playlist (Online)

(5) Lee R Wilson Memorial – Score 5 grenade sticks in any ranked free for all playlist (Online)

(5) We're in for some Chop – Destroy an enemy vehicle with equipment in a ranked playlist or in Campaign

(5) Killing Frenzy – Kill 10 enemies without dying in any ranked free for all playlist (Online)

(5) Steppin' Razor – Score a Triple Kill with an Energy Sword in a ranked free for all playlist (Online)

(5) Mongoose Mowdown – Splatter an enemy with a Mongoose in a ranked free for all playlist (Online)

(5) Up Close and Personal – Kill 5 enemies via melee or assassination in a ranked free for all playlist (Online)

(5) Fear the Pink Mist – Kill 5 enemies with a Needler in a ranked free for all playlist or in Campaign

(5) Headshot Honcho – Kill 10 enemies with headshots in a ranked free for all playlist or in Campaign

(5) Used Car Salesman – Destroy a vehicle that has 3 enemies in it in a ranked playlist or in Campaign

(40) Marathon Man – Locate and access all Terminals in the Campaign

(5) MVP – Earn the MVP in any ranked playlist (Online)

(5) Maybe Next Time Buddy – Board the same vehicle within 10 seconds after being boarded in any free for all playlist (Online)

(10) Guerilla – Score over 15,000 points in Campaign meta-game on the 1^st mission

(10) Demon – Score over 15,000 points in the Campaign meta-game on the 2^nd mission

(10) Cavalier – Score over 15,000 points in the Campaign meta-game on the 3^rd mission

(10) Askar – Score over 15,000 points in the Campaign meta-game on the 4^th mission

(10) Exterminator – Score over 15,000 points in the Campaign meta-game on the 5^th mission

(10) Ranger – Score over 50,000 points in the Campaign meta-game on the 6^th mission

(10) Vanguard – Score over 50,000 points in the Campaign meta-game on the 7^th mission

(10) Orpheus – Score over 15,000 points in the Campaign meta-game on the 8^th mission

(10) Reclaimer – Score over 15,000 points in the Campaign meta-game on the final mission