You Win, Everything.

Modify a soldier.

Deploy three tactical subsystems on a single soldier.

Eliminate all alien waves.

Kill a Muton Berserker in melee combat.

Field a squad consisting entirely of augmented soldiers and SHIVs (min. 4) and win the mission.

Kill an unseen enemy detected by a specially modified soldier.

Beat a new special mission without losing any assets.

Beat the game in Ironman mode on Classic or Impossible difficulty.

Beat the game on any difficulty.

Beat the game on Impossible difficulty.

Kill 150 aliens.

In a single game, complete every Research Project.

Find a soldier with the Gift.

Stun an Outsider.

Build the Gollop Chamber.

Get satellite coverage over every country on one continent.

Complete a mission without losing a soldier.

Acquire 1000 credits in one month.

Build a Laboratory.

Complete a Very Difficult abduction mission in five turns or less on Classic or Impossible difficulty.

Fulfill a Council request.

Shoot down a UFO.

Make contact with the Ethereal hive mind.