As Colt, achieve 3 airborne headshots on enemies you've launched using Karnesis.

Kill Harriet with poisonous gas.

While using Aether as Colt, kill 3 enemies without alerting nearby enemies.

Complete 'Afternoon Delight.'

Kill Fia without causing a deadly reaction.

Kill all Visionaries present in a map and escape without killing any Eternalists.

Kill a Visionary using a full loadout, without any empty slots or sockets, and escape the map.

Kill Charlie within the rules of Condition Detachment.

While playing as Colt, own all upgrades for a Slab.

While playing as Colt, cause someone to fall to their death.

While playing as Colt, ignite a gas cloud while someone is inside it.

Absorb Residuum from a body - like some kind of temporal sponge.

After acquiring Reprise, die for real - or what passes for real in the Loop.