Find a soldier with the Gift.

Kill an alien while flying. Single player only.

In a single game, complete every Autopsy.

Build the Hyperwave Relay.

Gain access to the lowest level in your base.

Recover the Hyperwave Beacon.

Kill 150 aliens.

Advance one of your soldiers to Colonel rank.

Earn the "Excellent" rating in every performance category on a terror mission.

Stun an Outsider.

Build a Workshop.

Build a base facility.