Thanks to these people: psatkha, Frozensoull, fktifzobr@mail.ru, Narron, Lorian, green belly, Kayfenok1, Rommy, BigOverlord, sork96, G0ldiel, and footman, FixsToE_3.1 has become a large, comprehensive fix, incorporating (though not everything, and some things were finished) many of their fix-mods.
Of course, far from everything is fixed, but there is no point in dragging this out for years when the game is already 20 years old. If something serious comes up, I will, of course, add it to the mod and update both it and the description.
List of Fixes
Animations
Added happy animation: Shadow Mistresses.
Fixed buff animation: Agrael and Raelag.
Fixed jerky move animation: Isabel's Knights, Zealots of Faith, Demonesses, Warriors of Arkat, Red Dragons, Swordsmen, Bone Warriors, default Warlock heroes, and Order of Haven heroes Freyda, Ornella (living version), Ornella's attack (living version), Twilight Dragons, Black Dragons, Cyclopes, and Free Cyclopes.
Fixed the loincloth animation for the Thunderer.
Effects
Artifacts Runic War Harness and Skull of Markel have received glow effects, like other artifacts.
Fixed the blade glow effect for Furies in the stir00 and happy animations.
Fixed the eye effect for Astral Dragons in the stir00 animation.
Fixed the glow effect for Messengers of Death in the happy animation.
Fixed the sword glow effect for High Vampires in the LOD and stir00 animations.
Added missing effects: Refugee Camp, Inferno Town Ruins, and School of Magic (winter version).
Fixed the Dungeon moat effect.
Added the missing vertical attack effect for Shield Guards.
Added the missing melee attack effect: Harpooners, Plague Gremlins, and Forest Striders.
Added the missing attack effect: Hunters, Minotaur Taskmasters, Mountain Guards, Obsidian Golems, Viziers of Djinns, Wind Dancers, Bone Warriors, and Warriors of Arkat.
Added the missing foliage fall effect when hitting Ents and Ancient Ents.
Added the missing sword glow effect to the Renegade Knight's cast animation, like the regular Knight.
Sound
Added the missing music for Fortress when a hero flees combat.
Added the capture animation sound for Godric.
Fixed the path for Ilaya's cast animation sound.
Added sound to Alaric's cast and move animations.
Added sound to Hangvul's cast, rangeattack, and happy animations.
Added sound and effects to Tral'sai's baff, cast, and rangeattack animations, and sound to happy, idle00, idle01, spneutral, and sporator animations.
Added sound for the happy animation: Gremlins, Master Gremlins, Iron Golems, Steel Golems, Mages, Archmages, Djinns, Djinn Sultans, Scouts, Assassins, Beasts, Furies, Lizard Riders, Swift Riders, Twilight Witches, Shadow Mistresses, Liches, High Liches, Wraiths, Messengers of Death, Blade Dancers, Death Dancers, Elf Archers, Master Archers, Ents, and Ancient Ents.
Added sound for the idle00 animation: Beasts.
Added sound to the Renegade Knight's call, defeat, defeat01, defeat02, hit, stir00, stir00_alone, stir01, and stir02 animations.
Models
Added the missing projectile for Harpooners when throwing.
Elf Archers, Master Archers, and Forest Striders received bowstrings and holes on their sleeves and boots were fixed.
Warriors and Mountain Guards received eyes. The Mountain Guard's bracer, hem, and boot were fixed.
Fixed the Zealot of Faith model.
Mechanics
Added creatures of levels 4/5/6 from the "Hammers of Fate" and "Tribes of the East" add-ons (except neutral creatures) to the Refugee Camp, as well as the 3rd-level creature Poltergeist from the Necropolis faction.
A Barbarian dropping the Education skill now loses stats, like all heroes of other races.
Fixed the Suzerain specialization regarding the cost of training creatures.
Textures
Fixed the display of Sylvan object ownership on the adventure map when playing with the turquoise color.
Priorities for SubTerrain_(2) and SubTerrain_(3) textures raised from 33 and 35 to 35 and 36. Restores missing underground paths in the original campaign and scenarios of Hammers of Fate, when playing on Tribes of the East.
Fixed the flag color for Ilaya on the adventure map.
Fixed Agbeth's portrait.
Replaced the texture for the Hell Hound. (A full-size (512x512) texture was found in the beta version.).
Portraits of default creatures, first upgrades, neutrals, heroes, renegade heroes, and war machines are no longer blurry.
Fixed menu positioning for widescreen aspect ratios in Battle Recording and Video Editor.
Fixed texture positioning: Sylvan Guild of Avengers and Stronghold Slave Market.
On the mission completion screen with results and the Astrologer's Tower, the darkened area now covers the full screen (previously 1024x768).
Map previews (small screenshots) now display in the entire allotted window in Create a Game and Game Settings.
Dialogue scenes (cutscenes) now display in full screen (previously 1024x768).
Text
Added the missing town history for Claw for the Haven faction castle on multiplayer maps.
Fixed hero biographies: Raelag, Spirit of Isabel, Kha-Beleth, Orlando, and Arantir.
Fixed skill descriptions: Basic, Advanced, Expert Education, and Clever Counterstrike.
Fixed ability descriptions: Protect Us All, Storm Wind, Barbarian Luck, Deadly Cold, Fog Shroud, Banish, Sylvan Leader, Goblin Aid, Dominion Over Machines, Devil's Strike, Encouragement, and Master of the Land.
Fixed creature ability descriptions: Berserker Rage, Storm Caller, Purify, Lash Whip, Poisonous Aura, Seduction, Invisibility, Double Shot, Arcane Blow, Maneuver, Commander's Presence, Random Attack, Strike of Sorrow, Betrayal, Strengthened Arrow, and Crippling Wound.
Fixed hero specialization descriptions: Gremlin Master, Wind Speaker, Golem Creator, Black Hand, Bloody Lady, Slaveholder, Rider, Sharp Blade, Border Guard, Protector, Flame Keeper, Horseman, Archer Commander, Beloved of Gods, Griffin Trainer, Shield Guard Commander, People's Favorite, Suzerain, Hound Master, Chosen of Chaos, Gatekeeper, Mind Thief, Temptation, Embalmer, Blade Master, Skilled Hunter, Child of the Unicorn, Swift Fighter, Blood Drinker, Centaur Leader, Goblin King, Khan's Fist, Khan's Blade, Wyvern Tamer, Siege Engineer, Banshee, and Rune Lord.
Fixed the positioning of the creature count text in the tooltip on the adventure map.
Fixed effect descriptions in tooltips: Battle Frenzy, Rune of Berserking, Rune of Magic Surveillance, and Rune of Battle Fury.
Added descriptions of creature abilities in combat: Arcing Shot, Lay on Hands, Resurrection of Allies, Repair, Lightning Strike, Random Spell, and Random Blessing.
Fixed and corrected interface text: Translated the option Back to Menu in Video Recording, Save/Load Game, Load User Campaign, Open Battle Recording, and Open Cutscene.
Translated and fixed multiplayer map text: In Search of a Beauty, The Great Confrontation, Treasure Hunters, Duel, Duel of Titans, Fight for Glory, Allies, For the Artifact!, and Mortal Grievances.
Fixed and corrected city building text: Warehouse (Stronghold), Sacrificial Pit (Dungeon), Caravan Data, Cursed Temple, Traveler's Hut, Market (Artifact Sale), hero tooltip in the Sacrificial Pit (Inferno), confirmation window for building the Tears of Asha, Golden Pavilion, Chaos Gate, Spirit Tower, Town Hall (Stronghold), Slave Market, Hall of Bravery, and Hall of Might.
Fixed and corrected map object text: Caravan interaction window, Library of Spells, Astrologer's Tower, Sacrificial Altar, hero tooltip in the Sacrificial Altar, War Machine Workshop, Arena, Fountain of Eternal Youth, Hermit's Hut, Mystical Chapel, Ent Grove, Windmill, Witch's Hut, tooltip for Tears of Asha, Crystal of Revelation, Dolmen of Knowledge, Marletto Tower, One-Way Portal (entrance), One-Way Portal (exit), Mahogany Observatory, Lumber, Devil's Tower, Imp Crucible, and Graveyard.
Changed text alignment from justified to left alignment: Astrologer's Tower, Sphinx, Hero Biography, Creature Information, City Information, Mission Objectives, and Save/Load Game.
Fixed errors in the combat log: Daughters of Earth, Paokai, Spirits, Summon Phoenix, Devil's Strike, Acid Blood, Electric Breath, Paw Strike, Pyrokinesis, Mournful Cry, Spiritual Bond, Damage Absorption by Blood Rage, Mana Syphon, Fire Rage, and missing/added spaces and periods (not all listed).
Ability Explosion got damage prediction text added.
Fixed spell prediction descriptions: Spell Damage, Spell Damage (creatures will be killed), Arcane Crystal, Wall of Swords, Summon Hive, Stopping Cold, Sorcery Bonus, and Evasion.
Increased text size for primary and secondary objectives in Mission Objectives.
Fixed creature descriptions: Angels, Mountain Guards, Javelin Throwers, Flame Priests, Goblins, Daughters of the Sky, Daughters of the Earth, and Cyclopes.
Fixed city biographies: Academy: Murtaz. Dungeon: Ristiris. Fortress: Hrottar and Jarveg. Haven: Ash and Gryphonhill. Inferno: Ur-Chardos and Ur-Tot. Necropolis: Ammi-Eshu, Ammi-Saduka, Apal-Shipak, and Iriba-Ishkun. Sylvan: Minsil, Shalaya, and Syris Talla. Stronghold: Kharak, Saren-Oroi, and Surgaal.
City name on the city screen is now centered.
Fixed rumor text: Last player capture, Last player purchase, and Player with the most artifacts.
Fixed prediction line descriptions: Symbiosis and Swift Attack.
Fixed the message description for a hero: Receiving a spell.
Increased the window for the tooltip text on city siege gates, walls, and towers.
Fixed the spell name Stopping Cold (Empowered).
Fixed the bonus text in the tooltip for the partial artifact set Embrace of Death.
Campaigns and Scenarios
Fixed text errors in all campaigns and scenarios. Also fixed errors in dialogue scenes (cutscenes): Slaughter of Crows (first cutscene: changed names Landlords to Orc Hordes, Paladins to Zealots of Faith), Heart of Darkness (two living standing Adepts, Archers turned the right way, fixed Inquisitor's name, fixed Isabel's name), Skull Gathering (first and second cutscenes: fixed infinite talking animation for Kujin, Gotai, and Tengal, placed Gotai's model for the strike on Tengal), Hunt the Hunter (first cutscene: removed second model of Biara, fixed Biara's line, fixed two living standing Landlords), and in the scenario Days of Flame (first and third cutscenes: added the name Ergal, fixed Archdevil's teleportation animation).
In dialogue scenes (cutscenes), heroes were given color flags matching the map: Skull Gathering (first cutscene), Cup of Thunder (both cutscenes), Days of Flame (second cutscene), Eye for an Eye (both cutscenes), Trials of Agrael (second cutscene), and Battle Cry of Freedom (second cutscene).
p.s. I recommend using UpdatedResources and Creatures&Heroes_NormalLODModels with this mod.