Wage a global war of resistance against an alien invasion. Command turn-based tactical battles, build a network of covert bases, directly control your fighter wings, and achieve strategic victory in a simulation of asymmetric warfare against a technologically superior foe.
StrategyWin the campaign on Recruit difficulty or higher.
Win the campaign on Soldier difficulty or higher.
Win the campaign on Veteran difficulty or higher.
Win the campaign on Commander difficulty.
Capture the Cleaner facility.
Equip a soldier with a Vanguard Battlesuit.
Shoot down a Battleship UFO with an interceptor.
Shoot down a UFO with an interceptor.
Have an interceptor shoot down 20 UFOs.
Kill a hostile unit in a tactical combat mission.
Lose a soldier in a tactical combat mission.
Kill one of your own soldiers during a tactical combat mission.
Kill an alien with reaction fire during a tactical combat mission.
Cause an enemy unit to fall unconscious.
Kill an alien with an energy weapon.
Have a soldier with 20 alien kills.
Construct an additional base on the Geoscape.
Deploy a squad consisting entirely of Colonels on a tactical mission.
Have a soldier achieve the rank of Colonel.
Deploy a squad consisting entirely of Colonels on a tactical mission.