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