In a single game, shoot down one of each alien craft.

Staff the Research Labs with 80 scientists.

Gain access to the lowest level in your base.

Kill 50 aliens with explosive weapons.

Get satellite coverage over every country on one continent.

Recover the Hyperwave Beacon.

Build a suit of powered armor.

Uncover the alien base's location.

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

Build a Workshop.

Build a Laboratory.

Shoot down a UFO.