Two Sides to Every Tale

Two Sides to Every Tale is awarded for completing Alliance and Horde storylines up to Tides of Vengeance including:
 * 1) A Nation United - The Alliance storyline for Kul Tiras
 * 2) Zandalar Forever! (achievement) - The Horde storyline for Zandalar
 * 3) Tides of Vengeance (achievement) (Alliance) - The Alliance War Campaign up to Dead Reckoning
 * 4) Tides of Vengeance (achievement) (Horde) - The Horde War Campaign up to The Return of Derek Proudmoore

Completing the achievement unlocks the Bloodflank Charger for Horde characters and the Ironclad Frostclaw for Alliance characters.