Here is the full list of all 44 Warriors Orochi 3 Ultimate achievements worth 1,000 gamerscore.
Obtained all of the Strategy Cards in the game.
Unlocked Momiji, Kasumi, Sterkenburg and Sophitia as playable characters.
Performed all of the special Triple Rush attacks.
Used the Craft command 100 times.
Cleared all of the stages within Gauntlet Mode.
Promoted a single officer a total of 3 times.
Defeated 10,000 enemies.
Made it through 50 Survival battles in Duel Mode.
Unlocked all of the playable characters within Gauntlet Mode.
Cleared Gauntlet Mode for the first time.
Cleared 5 straight stages in Gauntlet Mode.
Summoned an ally for the first time in Gauntlet Mode.
Used the Craft command for the first time.
Completed a request for the first time in Gauntlet Mode.
Defeated an Otherworld Invader in Gauntlet Mode.
Cleared a stage for the first time in Gauntlet Mode.
Performed a Formation Attack in Gauntlet Mode.
Obtained a Mystic Weapon for the first time.
Maxed out the Bonds with one of the following officers: Momiji, Kasumi, Sterkenburg or Sophitia.
Found Kyūbi's nine tails and defeated them.
Found Kyūbi's tail and defeated it for the first time in Story Mode.
Cleared the stage "Rescue of the Mystics" in Story Mode.
Cleared the stage "Revenge of the Fox" in Story Mode.
Cleared the stage "Escape from the Mystic Realm" in Story Mode.
Changed the color of an officer's costume.
Cleared the stage "Showdown at Odawara Castle" in Story Mode.
Cleared the stage "War against the Serpent King" in Story Mode.
Unlocked Yinglong as a playable character.
Cleared the stage "Battle of Itsukushima" in Story Mode.
Cleared the stage "The Imprisonment of Tamamo" in Story Mode.
Played Survival for the first time in Duel Mode.
Played a match against the CPU for the first time in Duel Mode.
Cleared a battlefield in Musou Battlefields for the first time.
Used a special Triple Rush attack.
Used a Strategy Card for the first time in Duel Mode.
Played a match online or with another player for the first time in Duel Mode.
Used a True Musou Burst.
Performed a mounted True Triple Attack.
Obtained a Scroll of Enlightenment.
Changed your character's battle style.
Used an aerial Special Attack.
Accomplish all of the Achievements in the game.
Obtain all of the Mystic Weapons.
Complete all of the requests within Gauntlet Mode.