Complete 300 events in the campaign over multiple playthroughs

Win any medal in all Historical Battles

Win the highest possible medal for all Historical Battles

Win any medal in a Historical Battle

Play a multiplayer game to completion

Destroy 100 machine gun or mortar emplacements with bombers in the course of a single campaign with either faction

Cause 1,000 infantry casualties with gas weapons in any game mode

In the campaign, make it to December 1919 with either faction

Create a really big hole with the Undermining ability

Win a full campaign as the Allies

Win a full campaign as the Central Powers

Win the campaign by taking Paris or Kreuznach before November 1919