Siewlede

A God Falls Kill an Avatar

Matter Over Mind Defeat an Avatar with a SPARK unit

Brutal Collection Skulljack each different type of ADVENT soldier (does not have to be in same game)

Kingslayer Kill all three alien rulers in a single game

Archon Annihilator Kill the Archon Ruler

A Better Human Being Recover the Forge Item

Bells and Whistles Outfit a SPARK unit with the highest tier weaponry and armor

Deadly Arsenal Purchase all of the final tier hunter weapons

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

Enemy Adopted Use a ruler armor ability against an alien ruler

Pile 'Em Up Kill 500 aliens. (does not have to be in same game)

Our New Overlords Promote a SPARK unit to Champion rank

Bring It Down Sabotage an alien facility

Circle of Psi Raise a Templar to maximum Focus level, spend it all, and reach the max again in a single mission

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

Berserker Breaker Kill the Berserker Ruler

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

A Forbidden Experiment Investigate the Abandoned Research Facility

Regicide Kill an alien ruler the first time you encounter it

Viper Vanquisher Kill the Viper Ruler

Not Throwing Away My Shot Kill an alien ruler while it attempts to escape

Excalibur Completely upgrade a beam weapon with superior grade weapon upgrades

Shadow Broker Sell goods worth 1000 supplies to the Black Market (Can span multiple games)

Shen's Legacy Build a facility in every Avenger slot

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

Just Like Dad Used To Make Build a SPARK unit

It Takes Two Form a level 3 bond between two soldiers

Zombies in a Barrel Get 15 Headshots against Lost in a single turn

Codebreaker Build the Shadow Chamber

Have a Nice Trip Cause an enemy to fall to its death

David and Goliath Kill a Berserker in melee combat

Can't Stop the Fighting Perform three offensive actions against the same target with a Skirmisher in a single turn

Harder, Better, Faster, Stronger Apply a PCS upgrade to a soldier

Room to Grow Upgrade a facility

A Torch Passed Beat the Lost Towers mission

Axles to Axles, Bolts to Bolts Defeat a robotic enemy with a SPARK unit

Stop Hitting Yourself Kill an enemy with a hacked turret

Make ‘em go Boom Kill an enemy primed Derelict MEC before it can self-destruct

A Horrible Truth Recover the Blacksite Data

Breathing Room Kill a Viper who is strangling a squadmate

Born in the Darkness Get four kills from Shadow mode with a Reaper in a single mission

Cyberlord Earn a second tier hack reward

Rebel Radio Build Resistance Comms

A Grim Key Recover a Codex Brain

With Extreme Prejudice Skulljack an ADVENT Officer

Come Back To Me Kill a Sectoid who is currently mind controlling a squadmate

Tinker Build an experimental item in the Proving Grounds

Car Explosion Cause an enemy to die in a car explosion

Rise of the Resistance Make contact with a region

Nick of Time Evacuate a soldier whose bleed-out timer is still running