Total War: Warhammer 2's set the difficulty level for the Chaos invasion using a new drop-down menu box that will be found next to the campaign difficulty settings. Agent of the Stealthy Blade Objective: Obtain a maximum level ninja in the campaign. A Total War Saga: TROY gets Co-Op Hot Fix.Playing as the Empire, win a singleplayer campaign on Very Hard or Legendary difficulty. Win the Mortal Empires singleplayer campaign with a race from the Old World. Full list of all 152 Total War: WARHAMMER II achievements. Full list of all 152 Total War: WARHAMMER II achievements.