The Stromdorf Add-on for Warhammer: End Times - Vermintide has 5 trophies - 2 bronze, 2 silver and 1 gold.
Complete The Courier mission.
Complete Reaching Out mission
Dodge the overhead attack of the boss three times in a session.
Equip an Executioner's Sword.
Perform one decapitation with an Executioner's Sword.