diff --git a/default_bus_layout.tres b/default_bus_layout.tres
new file mode 100644
index 0000000..e8a2ac8
--- /dev/null
+++ b/default_bus_layout.tres
@@ -0,0 +1,47 @@
+[gd_resource type="AudioBusLayout" format=3 uid="uid://bcxqtqp2rqm5s"]
+
+[sub_resource type="AudioEffectEQ10" id="EQ_plasma"]
+resource_name = "Equalizer plazmy"
+
+[sub_resource type="AudioEffectEQ10" id="EQ_machine_gun"]
+resource_name = "Equalizer karabinu"
+
+[sub_resource type="AudioEffectEQ10" id="EQ_laser"]
+resource_name = "Equalizer lasera"
+
+[sub_resource type="AudioEffectEQ10" id="EQ_missile"]
+resource_name = "Equalizer rakiet"
+
+[resource]
+bus/1/name = &"Plasma"
+bus/1/solo = false
+bus/1/mute = false
+bus/1/bypass_fx = false
+bus/1/volume_db = -6.0
+bus/1/send = &"Master"
+bus/1/effect/0/effect = SubResource("EQ_plasma")
+bus/1/effect/0/enabled = true
+bus/2/name = &"MachineGun"
+bus/2/solo = false
+bus/2/mute = false
+bus/2/bypass_fx = false
+bus/2/volume_db = -15.788257
+bus/2/send = &"Master"
+bus/2/effect/0/effect = SubResource("EQ_machine_gun")
+bus/2/effect/0/enabled = true
+bus/3/name = &"Laser"
+bus/3/solo = false
+bus/3/mute = false
+bus/3/bypass_fx = false
+bus/3/volume_db = -26.605057
+bus/3/send = &"Master"
+bus/3/effect/0/effect = SubResource("EQ_laser")
+bus/3/effect/0/enabled = true
+bus/4/name = &"Missile"
+bus/4/solo = false
+bus/4/mute = false
+bus/4/bypass_fx = false
+bus/4/volume_db = -6.0
+bus/4/send = &"Master"
+bus/4/effect/0/effect = SubResource("EQ_missile")
+bus/4/effect/0/enabled = true
diff --git a/documentation.txt b/documentation.txt
index 21063e4..78de2c4 100644
--- a/documentation.txt
+++ b/documentation.txt
@@ -216,3 +216,13 @@ DODAWANIE NASTĘPNEJ UMIEJĘTNOŚCI
 
 Maska addonów ma teraz sześć kategorii. 63 oznacza wszystkie, 32 tylko aktywne rozszerzenia.
 Test integracyjny: tests/abilities/active_abilities_test.tscn.
+
+MIKSER DŹWIĘKÓW BRONI
+
+Układ: res://default_bus_layout.tres (ustawiony jako domyślny w projekcie).
+Panel Audio Godota: Plasma, MachineGun, Laser, Missile — każda szyna ma osobny
+suwak głośności i własny AudioEffectEQ10. Kliknij efekt, aby edytować pasma equalizera
+w Inspectorze. Domyślnie pasma są neutralne (0 dB), szyny mają -6 dB i wysyłają do Master.
+WeaponAudio.BUS_NAMES przypisuje rodzaj broni do szyny. Głośność gracza na odtwarzaczu
+wynosi 0 dB, plazma wrogów -4 dB względem szyny. Zmiana szyny Plasma obejmuje oba źródła.
+Muzyka i inne dźwięki nie przechodzą przez szyny broni.
diff --git a/project.godot b/project.godot
index 92e4a12..6302188 100644
--- a/project.godot
+++ b/project.godot
@@ -15,6 +15,10 @@ run/main_scene="res://scenes/ui/main_menu.tscn"
 config/features=PackedStringArray("4.7", "Forward Plus")
 config/icon="res://icon.svg"
 
+[audio]
+
+buses/default_bus_layout="res://default_bus_layout.tres"
+
 [autoload]
 
 GameState="*res://scripts/game/game_state.gd"
diff --git a/resources/items/affixes/damage_percent.tres b/resources/items/affixes/damage_percent.tres
index 8562174..822b323 100644
--- a/resources/items/affixes/damage_percent.tres
+++ b/resources/items/affixes/damage_percent.tres
@@ -1,17 +1,12 @@
-[gd_resource type="Resource" script_class="ItemAffixDefinition" load_steps=2 format=3]
+[gd_resource type="Resource" script_class="ItemAffixDefinition" format=3 uid="uid://c2eetdapysts2"]
 
-[ext_resource type="Script" path="res://scripts/items/item_affix_definition.gd" id="1_affix"]
+[ext_resource type="Script" uid="uid://cp6ucjqrac8so" path="res://scripts/items/item_affix_definition.gd" id="1_affix"]
 
 [resource]
 script = ExtResource("1_affix")
 affix_id = "damage_percent"
 display_name = "Obrażenia broni"
 stat_key = "damage_percent"
-unit = "%"
-selection_weight = 1.0
-category_mask = 63
-minimum_value_level_1 = 1
-maximum_value_level_1 = 3
-minimum_value_level_1000 = 25
-maximum_value_level_1000 = 50
-
+allowed_item_ids = null
+excluded_item_ids = null
+incompatible_affix_ids = null
diff --git a/resources/items/afterburner.tres b/resources/items/afterburner.tres
index 0512d36..10af8e8 100644
--- a/resources/items/afterburner.tres
+++ b/resources/items/afterburner.tres
@@ -1,7 +1,7 @@
-[gd_resource type="Resource" script_class="ItemDefinition" load_steps=4 format=3]
+[gd_resource type="Resource" script_class="ItemDefinition" format=3 uid="uid://dtdl8fh8nlr0q"]
 
-[ext_resource type="Script" path="res://scripts/items/item_definition.gd" id="1"]
-[ext_resource type="Script" path="res://scripts/abilities/afterburner_ability.gd" id="2"]
+[ext_resource type="Script" uid="uid://d2fdtd4wjk7d" path="res://scripts/items/item_definition.gd" id="1"]
+[ext_resource type="Script" uid="uid://bpaiuqwsxswii" path="res://scripts/abilities/afterburner_ability.gd" id="2"]
 
 [sub_resource type="Resource" id="Ability"]
 script = ExtResource("2")
diff --git a/resources/items/repair_drones.tres b/resources/items/repair_drones.tres
index c7be008..f91b16a 100644
--- a/resources/items/repair_drones.tres
+++ b/resources/items/repair_drones.tres
@@ -1,7 +1,7 @@
-[gd_resource type="Resource" script_class="ItemDefinition" load_steps=4 format=3]
+[gd_resource type="Resource" script_class="ItemDefinition" format=3 uid="uid://cdctway64tj3m"]
 
-[ext_resource type="Script" path="res://scripts/items/item_definition.gd" id="1"]
-[ext_resource type="Script" path="res://scripts/abilities/repair_drones_ability.gd" id="2"]
+[ext_resource type="Script" uid="uid://d2fdtd4wjk7d" path="res://scripts/items/item_definition.gd" id="1"]
+[ext_resource type="Script" uid="uid://bgofku10gduus" path="res://scripts/abilities/repair_drones_ability.gd" id="2"]
 
 [sub_resource type="Resource" id="Ability"]
 script = ExtResource("2")
diff --git a/resources/items/shield_charge.tres b/resources/items/shield_charge.tres
index e86afa3..b053ed2 100644
--- a/resources/items/shield_charge.tres
+++ b/resources/items/shield_charge.tres
@@ -1,7 +1,7 @@
-[gd_resource type="Resource" script_class="ItemDefinition" load_steps=4 format=3]
+[gd_resource type="Resource" script_class="ItemDefinition" format=3 uid="uid://cacthg4s2nnxi"]
 
-[ext_resource type="Script" path="res://scripts/items/item_definition.gd" id="1"]
-[ext_resource type="Script" path="res://scripts/abilities/shield_charge_ability.gd" id="2"]
+[ext_resource type="Script" uid="uid://d2fdtd4wjk7d" path="res://scripts/items/item_definition.gd" id="1"]
+[ext_resource type="Script" uid="uid://bwka1dwxq64sl" path="res://scripts/abilities/shield_charge_ability.gd" id="2"]
 
 [sub_resource type="Resource" id="Ability"]
 script = ExtResource("2")
diff --git a/scenes/game/game.tscn b/scenes/game/game.tscn
index b7a3e7e..fcde2dd 100644
--- a/scenes/game/game.tscn
+++ b/scenes/game/game.tscn
@@ -6,7 +6,7 @@
 [ext_resource type="Script" uid="uid://bcfvflaqnmfa5" path="res://scripts/game/flight_hud.gd" id="4_hud"]
 [ext_resource type="PackedScene" path="res://scenes/ui/ship_equipment_panel.tscn" id="5_equipment"]
 [ext_resource type="PackedScene" path="res://scenes/ui/ship_inventory_panel.tscn" id="6_inventory"]
-[ext_resource type="Script" path="res://scripts/game/scene_music_player.gd" id="8_scene_music"]
+[ext_resource type="Script" uid="uid://dvokq8qdccw37" path="res://scripts/game/scene_music_player.gd" id="8_scene_music"]
 [ext_resource type="PackedScene" path="res://scenes/ui/captain_panel.tscn" id="9_captain"]
 
 [sub_resource type="RectangleShape2D" id="TopWall"]
@@ -99,7 +99,7 @@ offset_top = 224.0
 offset_right = -10.0
 offset_bottom = 504.0
 grow_horizontal = 0
-grow_vertical = 0
+grow_vertical = 1
 
 [node name="ShipInventoryPanel" parent="HUD/HUDRoot" unique_id=1116676462 instance=ExtResource("6_inventory")]
 layout_mode = 0
@@ -115,9 +115,8 @@ offset_bottom = 128.0
 grow_horizontal = 2
 grow_vertical = 2
 
-[node name="CaptainPanel" parent="HUD/HUDRoot" instance=ExtResource("9_captain")]
+[node name="CaptainPanel" parent="HUD/HUDRoot" unique_id=424797965 instance=ExtResource("9_captain")]
 layout_mode = 0
-anchors_preset = 1
 anchor_left = 1.0
 anchor_right = 1.0
 offset_left = -270.0
diff --git a/scripts/game/enemy_ship.gd b/scripts/game/enemy_ship.gd
index eae38b9..ed7e277 100644
--- a/scripts/game/enemy_ship.gd
+++ b/scripts/game/enemy_ship.gd
@@ -85,7 +85,8 @@ func _fire_plasma(direction: Vector2) -> void:
 	var projectile := PLASMA_PROJECTILE_SCENE.instantiate() as Area2D
 	projectile.call("configure", global_position + direction * 28.0, direction, weapon_damage)
 	get_parent().add_child(projectile)
-	WEAPON_AUDIO_SCRIPT.play(get_parent(), global_position, ItemDefinition.WeaponKind.PLASMA, -10.0)
+	# Relative to the Plasma bus: enemy shots are 4 dB quieter than player shots.
+	WEAPON_AUDIO_SCRIPT.play(get_parent(), global_position, ItemDefinition.WeaponKind.PLASMA, -4.0)
 
 func take_weapon_hit(amount: float, critical: bool) -> void:
 	take_damage(amount, critical)
diff --git a/scripts/game/weapon_audio.gd b/scripts/game/weapon_audio.gd
index 55d7e4f..e143a23 100644
--- a/scripts/game/weapon_audio.gd
+++ b/scripts/game/weapon_audio.gd
@@ -10,7 +10,14 @@ const SOUND_PATHS := {
 
 static var _streams: Dictionary = {}
 
-static func play(parent: Node, source_position: Vector2, weapon_kind: int, volume_db: float = -6.0) -> void:
+const BUS_NAMES := {
+	ItemDefinition.WeaponKind.PLASMA: &"Plasma",
+	ItemDefinition.WeaponKind.MACHINE_GUN: &"MachineGun",
+	ItemDefinition.WeaponKind.LASER: &"Laser",
+	ItemDefinition.WeaponKind.MISSILE: &"Missile",
+}
+
+static func play(parent: Node, source_position: Vector2, weapon_kind: int, volume_db: float = 0.0) -> void:
 	if not is_instance_valid(parent):
 		return
 
@@ -25,6 +32,7 @@ static func play(parent: Node, source_position: Vector2, weapon_kind: int, volum
 
 	var player := AudioStreamPlayer2D.new()
 	player.stream = stream
+	player.bus = BUS_NAMES[weapon_kind]
 	player.volume_db = volume_db
 	player.max_distance = 1500.0
 	player.attenuation = 1.0