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