Get 30 Void weapon kills.
Get 5 kills within 3 seconds 5 times using a Heavy Weapon.
Get 20 grenade kills.
Defeat 50 Hive.
Defeat 50 Taken.
Collect resource nodes, open chests and kill enemies on the Moon.
Generate orbs of Light to earn Cycle of Light Medals in SIVA Crisis Strikes.
Get 150 kills in a SIVA Crisis Strike and complete the mission to earn a Brutal Efficiency Medal.
Get 6 rapid kills with any weapon type to earn Primary Spree, Special Spree, or Heavy Spree Medals in SIVA Crisis Strikes.
Get assists to earn Concentrated Fire Medals in SIVA Crisis Strikes.
Get 30 rapid enemy kills with your Fireteam to earn Fireteam Streak Medals in SIVA Crisis Strikes.
Rapidly kill 3 or more enemies with a Primary Weapon to earn Primary Streak, Primary Spree, or Primary Rampage Medals in SIVA Crisis Strikes.
Defeat 3 opposing Guardians with precision shots.
Defeat 5 Guardians in a single life.
Assist your teammates in defeating 10 opposing Guardians.
In a team game mode, defeat 3 opposing Guardians while your team has the lead.
Rapidly defeat 3 Guardians.
Defeat 7 Guardians using any ability (melee, grenade, super).
WANTED: Sho'oulth, Horror of Oryx. Mars or Venus. Fireteam recommended.
Kill Taken Lieutenants in the Cosmodrome.
Kill 100 Taken.
Gather 15 Dark Nuclei from Majors or Ultras in any strike playlist.
Defeat 50 minions of Darkness before completing the Challenge of the Elders.
Get 30 Arc kills on the Dreadnaught.
Exercise your skills in the Supremacy match type.
Exercise your skills in the Control match type.
Use Pulse Rifles to defeat opposing Guardians in the Crucible.
Use Hand Cannons to defeat opposing Guardians in the Crucible.
Use Fusion Rifles to defeat opposing Guardians in the Crucible.
Use Sniper Rifles to defeat opposing Guardians in the Crucible.
Use Heavy Weapons to defeat opposing Guardians in the Crucible.
Complete Dreg encounters in the Archon's Forge.
Complete Servitor encounters in the Archon's Forge.
Kill Fallen Majors and Ultras.
Earn Gold Tier Achieved, Silver Tier Achieved, or Bronze Tier Achieved Medals.
Earn a Gold Tier Achieved Medal in the Nightfall before time expires.
Get 150 enemy kills with your fireteam during a SIVA Crisis Strike to earn Brutal Efficiency Medals.