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