Achievements

From Xenonauts 2 Official Wiki

Recruit Victory Win the campaign on Recruit difficulty or higher.

Soldier Victory Win the campaign on Soldier difficulty or higher.

Veteran Victory Win the campaign on Veteran difficulty or higher.

Commander Victory Win the campaign on Commander difficulty.

All Your Base Capture the Cleaner facility.

Xenonaut Set foot upon the alien homeworld.

War Machine Equip a soldier with a Colossus Battlesuit.

Sunk My Battleship Shoot down a Battleship UFO with an interceptor.

Welcome To Earth Shoot down a UFO with an interceptor.

Air Superiority Have an interceptor shoot down 20 UFOs.

First Contact Kill an alien in a tactical combat mission.

First Of Many Lose a soldier in a tactical combat mission.

Unfriendly Fire Kill one of your own soldiers during a tactical combat mission.

Counterfire Kill an alien with reaction fire during a tactical combat mission.

Stunning Work Stun an alien with a Stun Baton.

Future Warfare Kill an alien with an energy weapon.

God Of War Have a soldier with 20 alien kills.

Expansionist Construct an additional base on the Geoscape.

Ultimate Power Deploy a squad consisting entirely of Colonels on a tactical mission.

Maximum Power Have a soldier achieve the rank of Colonel.