Balance changes:

Units:

1. Advent Soldier: the detection radius of invisible units has been increased by 6 tiles (14, it was 8), a new item has been received - a battle scanner.
2. Advent StunLancer: reduced cost to 300 points (there were 400), increased stun lance damage 4-5 (there were 2-4), increased accuracy to 80 (there were 70), reduced the base chance of a critical hit to 5 (there were 15). The accuracy of the Stun Lance has been increased by +20. 3 random effects have been replaced with one guaranteed stun effect for 1 action.
3. Advent Purifier: a shot from a flamethrower is now guaranteed to hit the target, 1 armor point has been added (it was 0), the cost has been reduced to 400 points (it was 500), the range of the flamethrower has been increased to 9 cells (it was 8), the width of the cone of fire has been increased to 6 cells (it was 5), the chance to set fire to the landscape has been increased.
4. Advent's MEC: increased the cost to 1200 points (there were 1000).
5. Advent Priest: increased defense to 10 (was 0), increased hp to 9 (was 8), increased accuracy to 80 (was 70), increased rifle damage to 4-5 (was 3-4), increased will to 70 (was 50), added the ability to receive a bonus from the distance
6. Faceless: increased defense to 5 (was 0), reduced cost to 600 points (was 800), increased mobility to 16 (was 15), increased range of claws to 5 tiless, increased cone width to 6 tiless, increased damage to 4-5 (there were 3-4), the accuracy was increased to 100 (there were 80).
7. Sectoid: increased PSI power to 75 (was 60), price reduced to 700 points (was 1000), added ability "Psionic shield".
8. Viper: reduced cost to 900 points (was 1200), increased rifle damage to 4-6 (was 4-5).
9. Codex: increased rifle damage to 5-6 (it was 4-5), added a flank shot bonus to accuracy +10 (it was 0), reduced dodge to 20 (it was 25).
10. Spectre: increased rifle damage to 6-7 (it was 4-5), added the ability to receive a distance bonus (previously it was not), increased the reduction of the will of the XCOM fighter from the Horror ability to -60 (previously it was -20), the ghost rifle now ignores dodge and is not turned off by the Psi bomb of the Codex, the cost is reduced up to 1900 (it was 2000), HP was increased to 14 (was 13).
11. Archon: the cost has been increased to 2500 points (previously it was 2000), fire and poison should no longer trigger the activation of "Battle frenzy".
12. Gatekeeper: added the ability to receive a bonus for distance (previously it was not); added the ability to apply the ability "Holy Warrior" to the gatekeeper, reduced the cost to 5,500 (it was 6,000), increased accuracy when using the ability “Consume” by 30, removed the multiplier for the Consume ability (previously it was 1.5), increased the K for the Gateway ability to 4 (previously it was 3).
13. Sectopod: significantly increased protection against hacking to 3000 (previously it was 125), the critical hit bonus was removed (it was 10), defense was increased to 10 (it was 0), receives a critical hit bonus only when fired from the flank (+10%).
14. Sharpshooter: sniper: replaced the standard pistol with a magnetic one, added the ability to Return fire.
15. Grenadier: Demo Expert: cost increased to 3,300 points (it was 3,200), reduced missile damage to 4-5 (it was 4-7), reduced missile launch range to 20 tiles (it was 27).
16. Reaper: added the "Deadeye" ability, the price is reduced to 4000 (was 5000).
17. Templar: added the "Lightning Hands" ability, added the "Salvation" ability, increased the chance of the "Overflow" ability to 100% (it was 33%), the cost was reduced to 4,500 points (it was 5,000), the “Reflect” ability can now be activated only at 3 concentration levels (previously it was 2), the chance for the abilities “Deflect” and “Reflect” for each concentration level by 10%, the Pillar and Volt ability no longer requires concentration and does not consume it, Stun Strike abilities no longer consume concentration, The Invert ability now requires 2 points of concentration and completes the turn when used (previously required 1 point and did not complete the Templar's turn). The minimum damage of Volt has been increased by 1.
18. Specialist: Field Medic: the cost has been reduced to 2100 points (it was 2,800), the ability “Guardian" and "Haywire Protocol"has been added.
19. Skirmisher: the price has been reduced to 4000 (it was 5000), Retribution: the chance of hitting the ability has been increased by 40%, the penalty for the range of the bullet has been removed, a slot with a grenade in the cell has been added, "Justice" no longer attracts the Avatar.
20. Ranger: Blade Master: Bladestorm – chance of hitting ability increased by 40%.
21. Ranger: Phantom: price reduced to 2800 (was 3200).
22. Andromedon: removed the basic chance of a critical hit (became 0), a critical hit bonus was added when fired from the flank (+10%), increased the amount of health to 18 (there were 15), 22. Andromedon: removed the base chance for a critical hit (became 0), added a bonus for a critical hit when fired from the flank (+10%), increased the amount of health to 18 (was 15), removed the penalty for punching, reduced damage from punching to 5-6 (was 7-10), increased accuracy up to 85 (it was 80). Similar changes have been made to the Andromedon costume.
23. Faceless, Archon, MEC Advent, Gatekeeper, Sectopod, Berserker, Chryssalid received the ability “Hardened”, which reduces the chance of a critical hit on them by 10%.
24. Muton: fixed bugs with the "Execution" ability (previously called finishing), increased accuracy when using a bayonet by +20.
25. Berserker: increased accuracy to 100 (it was 80), reduced the chance of a critical hit to 0 (it was 15), increased the minimum damage to 6 (it was 5). 3 random effects are replaced by 1 guaranteed stun, Rage is no longer activated by damage from its own and when setting fire to a Berserker and lasts for 3 turns (previously there would have been an infinite effect). The Rage bonus has been reduced to 30% (it was 50%).
26. Chryssalid: accuracy increased to 90 (it was 80). The mechanics of the poison have been changed. Chryssalid's poison now deals damage at the beginning of the turn, not at the end. Reduced poison damage to 1-2 (there were 1-3). Reduced Dodge to 0 (there were 25).
27. Psi Operative: Kevlar body armor has been replaced with a Predator body armor, a new ability "Purification" has been added, "Stasis" has increased the cooldown of the ability to 4 moves (there were 3).

Items:

1. Hellweave: cost reduced to 100 points (from 200).
2. Hazmat Vest: cost increased to 200 points (from 100), now give immunity from Freeze effect.
3. Stasis Vest: cost reduced to 200 points (from 400).
4. EM grenade: cost reduced to 100 points (from 300).
5. Mental shield: cost increased to 300 points (from 200).

Weapons:

1. The aim bonuses from distance for magnetic weapons and beam weapons has been increased:
1 tiles to target - +30% (from +22%)
2 tiles to the target - +30% (from +20%)
3 tiles to target - +25% (from +18%)
4 tiles to target - +20% (from +16%)

Abilities:
1. The cooldown of the “Rapid Fire” ability has been reduced to 2 turns (from 5).
2. After firing, the "Infernal Cannon" ability no longer consumes an action.

Gameplay:
1. Maximum number of panicking units has been increased to 6 (from 2).
2. Improved localization of existing abilities.
3. Added a system for limiting unit spam in the game.
4. Added the ability to determine what item an XCOM fighter is equipped with during the game.
5. Fixed a problem with incorrect icon display in a multiplayer game.
6. Add squad validation system.
7. The critical hits calculation system has been changed. Now the final percentage of critical hits will be calculated as the chance of a critical hit * on the offense of the unit.
8. Burning units can no longer use the grapple.

New items:

Units:

1. Added The Lost.
2. Added Derelict ADVENT MEC.
3. Added Heavy ADVENT MEC.
4. Added Viper Hunter.
5. Added Viper King.
6. Added Avatar.
7. Added Chosen: Assassin.
8. Added Chosen: Hunter.
9. Added Chosen: Warlock.
10. Added ADVENT General.
11. Added Archon King.
12. Added ADVENT Turret
13. Added ADVENT Drone
14. Added ADVENT Medic
15. Added ADVENT Sniper
16. Added Centurion
17. Added Sectoid Commander
18. Added Muton Elite
19. Added Berserker Queen
20. Added Ethereal
21. Added Spark

Items:
1. Added nanomedikit package.
2. Removed Battle Scanner from the XCOM inventory.
3. The abilities "Series", "Untochable", "Impacable", "Reaper" are now activated when the XCOM fighter receives the "Bleeding" effect (previously, the "Bleeding" effect was not considered to kill a character and the ability was disabled).
4. Dodge no longer works when shooting at a target from the flank or without cover.

Bug fixes:

1. Trying to move a sectopod with an activated Hell Cannon led to the unit completely freezing.
2. Sectopod permanently lost an action after using the “Hell Cannon” ability.
3. Overwatch using the “Ever Vigilant” ability only worked on XCOM fighters.
4. The “Deep Cover” ability gave unending hunker down status.
5. The “Aim” ability gave an unending aim increase.
6. The “Release from entanglement” ability was unavailable.
7. Fixed a bug with Andromedon suit.
8. Fixed a bug with Chryssalid cocoons.
9. Fixed a bug that caused the Berserker to cause damage to the sectoid when it missed.
10. Fixed an issue where the Advent StunLancer returned both actions if he ran through fire while attacking with an opponent's lance. Now the attack will be canceled and the turn will end.
11. Fixed a bug where the Return Fire and Threat Assessment abilities did not fire shots if the enemy was firing from full cover.
12. Fixed a bug that prevented the Sectopod from jumping off in some places on the map.
13. Fixed a bug that made it possible to apply the "Haywire Protocol" ability to enemy mechanical units through the fog of war under certain conditions.
14. Fixed a bug that caused the gray icons of enemies to remain on the panel even after they went into the fog of war when the unit had the "Squadsight" ability.
15. Fixed a bug where stun might not be displayed to the opponent.
16. Fixed a bug that caused the Priest not to kill a unit bound by a "Holy Warrior" after dying from Chryssalid poison.
17. Fixed a bug with displaying visible enemy targets in icons in the fog of war.
18. Fixed a bug with the opening of the fog of war when using abilities.
19. Fixed a bug that caused full damage to fighters with the ability to reduce explosive damage when exploding cars and other types of exploding objects.
20. Fixed a bug with mind control, due to which, when controlling a panicked unit, he received 2 actions at once for this turn.
20. Fixed a bug with mind control, due to which, when controlling a panicked unit, he received 2 actions at once for this turn.
21. Fixed a bug with "infinite" fire.
22. Fixed a bug with "infinite" stasis of the "Salvation" ability.
23. Fixed a bug related to the Chryssalid cocoon, when it did not die after all charges were used up.
24. Fixed a bug with the Restoration Protocol and the Restoration ability, which gave free action points under certain conditions.
25. Fixed a freeze when using the "Cold of the Void" ability.
26. Fixed a bug related to increasing control for 1 turn when capturing a panicking fighter.
27. Fixed a bug due to which it was possible to move the Advent turret after hacking in the same turn.
28. Fixed a bug due to which it was impossible to move a captured unit with the "Deaf Defense" or "Always on the alert" ability.
29. Fixed a bug with infinite suppression on units with Light Step or during Codex Teleport.

Known bugs:
1. Sometimes a unit affected by Mind Control or Haywire Protocol is still available for your opponent to move.
2. The doors in the game are not working properly.
3. When killing a Shadow created by a Spectre, the copied unit takes 2 damage.