"Galcrezian Exterminators"@en . . . . "The specialized Imperial Guard regiments recruited from the Fortress world of Galcrezia. Collectively known as Galcrezian Exterminator regiments, they have a long and illustrious combat record. In particular these regiments specialize in dealing with \"Horde Xenos\", otherise known as Orks and Tyranids."@en . . . "The specialized Imperial Guard regiments recruited from the Fortress world of Galcrezia. Collectively known as Galcrezian Exterminator regiments, they have a long and illustrious combat record. In particular these regiments specialize in dealing with \"Horde Xenos\", otherise known as Orks and Tyranids."@en .