Build the Gollop Chamber.

In a single game, complete every Autopsy.

Chip the Keeper

Kill 500 aliens.

Build a S.H.I.V

Find a soldier with the Gift.

Build a suit of powered armor.

Staff the Research Labs with 80 scientists.

Uncover the alien base's location.

Get satellite coverage over every country on one continent.

Advance one of your soldiers to Colonel rank.

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