Beat a Retaliation mission with 3 or less civilian deaths

Kill an alien ruler the first time you encounter it

Purchase all of the final tier hunter weapons

Completely upgrade a beam weapon with superior grade weapon upgrades

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

Build the Shadow Chamber

Raise XCOM's influence with all three factions to High in a single game

Kill a Sectopod on the same turn you encounter it (in Single Player)

Build Resistance Comms

Perform three offensive actions against the same target with a Skirmisher in a single turn

Kill a Berserker in melee combat

Recover the Blacksite Data

Earn a second tier hack reward