Warrior
Complete the game on Normal difficulty
100 ✓ April 26th, 2011
Cairo Station
Complete Cairo Station at Normal, Heroic, or Legendary
30 ✓ October 2nd, 2010
Gravemind
Complete Gravemind at Normal, Heroic, or Legendary
30 ✓ April 26th, 2011
Uprising
Complete Uprising at Normal, Heroic, or Legendary
30 ✓ April 26th, 2011
High Charity
Complete High Charity at Normal, Heroic, or Legendary
30 ✓ April 26th, 2011
The Great Journey
Complete The Great Journey at Normal, Heroic, or Legendary
30 ✓ April 26th, 2011
Outskirts
Complete Outskirts at Normal, Heroic, or Legendary
30 ✓ October 5th, 2010
Metropolis
Complete Metropolis at Normal, Heroic, or Legendary
30 ✓ April 26th, 2011
The Arbiter
Complete The Arbiter at Normal, Heroic, or Legendary
30 ✓ April 26th, 2011
Oracle
Complete The Oracle at Normal, Heroic, or Legendary
30 ✓ April 26th, 2011
Delta Halo
Complete Delta Halo at Normal, Heroic, or Legendary
30 ✓ April 26th, 2011
Regret
Complete Regret at Normal, Heroic, or Legendary
30 ✓ April 26th, 2011
Sacred Icon
Complete Sacred Icon at Normal, Heroic, or Legendary
30 ✓ April 26th, 2011
Quarantine Zone
Complete Quarantine Zone at Normal, Heroic, or Legendary
30 ✓ April 26th, 2011
Demon
Complete any campaign level without dying once on Normal, Heroic, or Legendary
25 ✓ October 5th, 2010
King of the Scarab
Acquire the Scarab gun on the Metropolis level, any difficulty
20 ✓ April 26th, 2011
Silent but Deadly
Kill 7 opponents from behind in a row without being spotted, any level, any difficulty
20 ✓ April 26th, 2011
Go Ape Shiv
Kill an enraged, berserk Brute by melee, any level, any difficulty
20 ✓ April 26th, 2011
Double Kill
Kill 2 opponents within 4 seconds
20 ✓ October 2nd, 2010
Triple Kill
Kill 3 opponents within 4 seconds
20 ✓ October 2nd, 2010
Killtacular
Kill 4 opponents within 4 seconds
20 ✓ October 5th, 2010
Killing Spree
Kill 5 opponents in a row in the same game, without dying
20 ✓ October 2nd, 2010
Running Riot
Kill 10 opponents in a row in the same game, without dying
20 ✓ October 2nd, 2010
Skewer Stopper
Kill the sword carrier after they kill 5 or more times in a row with the sword
20 ✓ October 4th, 2010
Air Traffic Control
Blow up the Banshee in flight while manned, with grenades or the rocket launcher
20 ✓ October 4th, 2010
Ninja
In a non-team game, kill 5 people by melee, from behind
20 ✓ October 2nd, 2010
Flaming Ninja
Kill an opponent that has the Ninja achievement
20 ✓ October 2nd, 2010
Hired Gun
Kill an opponent who has the Legend achievement
20 ✓ October 4th, 2010
Sniper Kill
Kill an opponent with the sniper rifle or the beam rifle
10 ✓ October 2nd, 2010
Roadkill
Run over, hit and kill an opponent with a vehicle
10 ✓ October 4th, 2010
Bonecracker
Hit and kill an opponent with a melee attack
10 ✓ October 2nd, 2010
Assassin
Melee an opponent from behind
10 ✓ October 2nd, 2010
Vigilante
Stop a Killing Spree of another player
10 ✓ October 2nd, 2010
Stick It
Stick an opponent with a plasma grenade and blow them up
5 ✓ October 2nd, 2010
Counterpoint
Kill the sword carrier
5 ✓ October 2nd, 2010
Carjacking
Steal an occupied vehicle from an opponent and take it over
5 ✓ October 2nd, 2010
Hero
Complete the game on Heroic difficulty
50 
Legend
Complete the game on Legendary difficulty
50 
Violent Cartographer
Play every available default map and stay in each game until it’s over
25 
Rainman
Play every available game variant, with at least 3 other players, to the end of each game
25 
Decorated Soldier
Get awarded at least 8 different medals in one non-team game
10