Kill 3 enemies in a single turn, with a single soldier, without explosives

Beat the game on Commander+ difficulty in Ironman mode

Investigate the Abandoned Research Facility

Kill the Viper Ruler

Kill the Berserker Ruler

Kill the Archon Ruler

Kill all alien rulers in a single game

Purchase all of the final tier Hunter Weapons

Use all ruler armor abilities in a single mission

Use a ruler armor ability against an alien ruler

Kill an alien ruler the first time you encounter it

Kill an alien ruler while it attempts to escape

Beat the Lost Towers mission

Promote a SPARK unit to Champion rank

Complete a mission with three or more SPARK units in the squad

Defeat an Avatar with a SPARK unit

A SPARK unit survives a mission it started with less than half health

Outfit a SPARK unit with the highest tier weaponry and armor

Hit three shots on a single turn with a SPARK unit after using its Overdrive ability

Defeat a robotic enemy with a SPARK unit

Build a SPARK unit

Kill an enemy primed Derelict MEC before it can self-destruct

Complete the Lost and Abandoned mission

Permanently defeat one of the Chosen