There are 82 achievements worth a total of 2000 points
Story Progression in Prologue (Standard or Arcade).
Story Progression in Act 1 Chapter 2 (Standard or Arcade).
Story Progression in Act 1 Chapter 3 (Standard or Arcade).
Story Progression in Act 1 Chapter 5 (Standard or Arcade).
Story Progression in Act 1 Chapter 6 (Standard or Arcade).
Story Progression in Act 2 Chapter 1 (Standard or Arcade).
Story Progression in Act 2 Chapter 5 (Standard or Arcade).
Story Progression in Act 2 Chapter 7 (Standard or Arcade).
Story Progression in Act 3 Chapter 1 (Standard or Arcade).
Story Progression in Act 3 Chapter 2 (Standard or Arcade).
Story Progression in Act 3 Chapter 3 (Standard or Arcade).
Story Progression in Act 3 Chapter 5 (Standard or Arcade).
Story Progression in Act 4 Chapter 3 (Standard or Arcade).
Story Progression in Act 4 Chapter 5 (Standard or Arcade).
Story Progression in Act 4 Chapter 6 (Standard or Arcade).
Story Progression in Act 5 Chapter 2 (Standard or Arcade).
Story Progression in Act 5 Chapter 5 (Standard or Arcade).
Story Progression in Act 5 Chapter 6 (Standard or Arcade).
Complete all campaign Acts on Casual or Normal Difficulty (Standard or Arcade).
Complete all campaign Acts on Hardcore Difficulty (Standard or Arcade).
Complete all campaign Acts on Insane Difficulty (Standard or Arcade).
Recover 5 Campaign Collectibles (any difficulty, Standard or Arcade).
Recover 20 Campaign Collectibles (any difficulty, Standard or Arcade).
Recover all 42 Campaign Collectibles (any difficulty, Standard or Arcade).
Recover all 15 COG Tags during the Campaign (any difficulty, Standard or Arcade).
Complete all Campaign Acts in Co-op (any difficulty, Standard or Arcade).
Complete all Campaign Acts in 4 player Co-op (any difficulty, Standard or Arcade).
Reach level 5.
Reach level 10.
Reach level 15.
Reach level 25.
Reach level 50.
Get a kill with every possible execution finishing move (any mode).
Get a kill with every Locust monster in Beast mode (any difficulty).
Complete all 50 waves of Horde mode (any difficulty, any map).
Earn the Bronze "Loot Courtesan" medal.
Earn the Bronze "Force Multiplier" medal.
Earn the Silver "Number 1" medal.
Earn at least one Onyx medal.
Reach level 100 and earn every Onyx medal.
Kill 10 enemies in Team Deathmatch (Standard or Casual).
Complete one match of all six Versus game modes (Standard or Casual).
Survive the first 10 waves of Horde mode (any difficulty, any map).
Survive all 12 waves of Beast mode (any difficulty, any map).
Complete 5 Arcade Campaign chapters in co-op (any difficulty).
Demonstrate your skill in Casual Versus multiplayer.
Earn the maximum Consecutive Match Bonus in Versus multiplayer (Standard or Casual).
Execute an Epic employee, or someone who already has Lambency, in Versus multiplayer (any mode).
Earn the Onyx "War Supporter" medal.
Host a private Horde Match with a party of 5 players on any Horde Command Pack map (any difficulty). (DLC: Horde Command Pack)
Host a private Beast Match with a party of 5 players on any Horde Command Pack map (any difficulty). (DLC: Horde Command Pack)
Get 500 Silverback rocket kills in Horde (any map, any difficulty). (DLC: Horde Command Pack)
Achieve Level 4 in Horde Command Center fortifications. (DLC: Horde Command Pack)
Defeat a Boss Wave as 5 Onyx Guards (Hardcore difficulty). (DLC: Horde Command Pack)
Completed "RAAM's Shadow" in Standard Campaign. (DLC: RAAM's Shadow)
Completed "RAAM's Shadow" in Arcade Campaign. (DLC: RAAM's Shadow)
Completed "RAAM's Shadow" in 4 player co-op. (DLC: RAAM's Shadow)
As RAAM, ripped 50 Gears to shreds with your Kryll. (DLC: RAAM's Shadow)
Used the Mauler shield to kill 10 Gears that had the temerity to fire upon you and your General. (DLC: RAAM's Shadow)
Showed 50 Locusts the meaning of sky-fire with HOD Command Center. (DLC: RAAM's Shadow)
Ignored all Loader safety guidelines and killed 10 Locusts. (DLC: RAAM's Shadow)
Honored the memory of Zeta Squad in 10 matches of Versus. (DLC: RAAM's Shadow)
As RAAM, made sure Minh never forgets that day outside the House of Sovereigns. (DLC: RAAM's Shadow)
Defeated the first 10 waves of Horde with every member of Zeta in your party. (DLC: RAAM's Shadow)
Complete all 12 waves of Beast on all Fenix Rising maps. (DLC: Fenix Rising)
Complete all 50 waves of Horde on any of the Fenix Rising maps. (DLC: Fenix Rising)
Win a Versus multiplayer match as a team of five Recruit Claytons (any mode). (DLC: Fenix Rising)
Win a Versus multiplayer match as a team of five Savage Marauders (any mode). (DLC: Fenix Rising)
Achieve level 100 and choose to re-up for another tour of duty. (DLC: Fenix Rising)
Achieve level 100 a second time and choose to re-up for another tour. (DLC: Fenix Rising)
Earn at least one of each of the original 132 combat ribbons. (DLC: Fenix Rising)
Complete all 12 waves of Beast on all Forces of Nature maps. (DLC: Forces of Nature)
Complete 20 consecutive waves of Horde on any Forces of Nature map without going down or dying. (DLC: Forces of Nature)
Complete all 50 waves of Horde on any of the Forces of Nature maps. (DLC: Forces of Nature)
Get 25 kills with any of the hidden elementally charged Cleavers in Horde. (DLC: Forces of Nature)
Achieve the maximum level on all fortifications in Horde mode. (DLC: Forces of Nature)
Win a match of Guardian on all Forces of Nature maps. (DLC: Forces of Nature)
Build or repair 50,000 worth of fortifications as Mechanic Baird LE. (DLC: Forces of Nature)
Bag and Tag 20 opponents while playing as the Savage Hunter in Versus multiplayer (any mode). (DLC: Forces of Nature)
Kill 10 opponents as the leader in a round of Guardian on a Forces of Nature map. (DLC: Forces of Nature)
Kill a Lambent Berserker with a team comprised of 5 Forces of Nature characters in Horde. (DLC: Forces of Nature)
Your respect for the dead earned you access to Griffin's special weapons stash.