Halo 2 Progress

Hit and kill an opponent with a melee attack

Kill an opponent that has the Ninja achievement

Kill an opponent with the sniper rifle or the beam rifle

Melee an opponent from behind

Complete Cairo Station at Normal, Heroic, or Legendary

Complete the game on Normal difficulty

Complete The Great Journey at Normal, Heroic, or Legendary

Play every available game variant, with at least 3 other players, to the end of each game

Play every available default map and stay in each game until it’s over

Complete High Charity at Normal, Heroic, or Legendary

Complete Uprising at Normal, Heroic, or Legendary

Complete Gravemind at Normal, Heroic, or Legendary

Kill an enraged, berserk Brute by melee, any level, any difficulty

Complete Quarantine Zone at Normal, Heroic, or Legendary

Kill 7 opponents from behind in a row without being spotted, any level, any difficulty

Complete any campaign level without dying once on Normal, Heroic, or Legendary

Acquire the Scarab gun on the Metropolis level, any difficulty

Complete Sacred Icon at Normal, Heroic, or Legendary

Complete Regret at Normal, Heroic, or Legendary

Complete Delta Halo at Normal, Heroic, or Legendary

Complete The Oracle at Normal, Heroic, or Legendary

Complete The Arbiter at Normal, Heroic, or Legendary

Complete Outskirts at Normal, Heroic, or Legendary

Kill 4 opponents within 4 seconds

Kill 3 opponents within 4 seconds

In a non-team game, kill 5 people by melee, from behind

Kill the sword carrier after they kill 5 or more times in a row with the sword

Kill 10 opponents in a row in the same game, without dying

Kill 5 opponents in a row in the same game, without dying

Complete Metropolis at Normal, Heroic, or Legendary

Blow up the Banshee in flight while manned, with grenades or the rocket launcher

Run over, hit and kill an opponent with a vehicle

Steal an occupied vehicle from an opponent and take it over

Stick an opponent with a plasma grenade and blow them up

Kill an opponent who has the Legend achievement

Kill 2 opponents within 4 seconds

Stop a Killing Spree of another player

Kill the sword carrier

Complete the game on Legendary difficulty

Complete the game on Heroic difficulty

Get awarded at least 8 different medals in one non-team game