Fix the sync and add shooting

godot/scenes/weapon/misc/bullet_trace_distance.tscn

@@ -0,0 +1,8 @@
+[gd_scene format=3 uid="uid://bjyltbtx45cqs"]
+
+[node name="BulletTraceDistance" type="Node3D"]
+
+[node name="Start" type="Node3D" parent="."]
+
+[node name="End" type="Node3D" parent="."]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, -300)

godot/scenes/weapon/misc/bullet_trail_generic.gd

@@ -0,0 +1,26 @@
+extends MeshInstance3D
+
+var  alpha = 1.0
+func init(pos1, pos2):
+	var draw_mesh := ImmediateMesh.new()
+	mesh = draw_mesh
+	draw_mesh.surface_begin(Mesh.PRIMITIVE_LINES, material_override)
+	draw_mesh.surface_add_vertex(pos1)
+	draw_mesh.surface_add_vertex(pos2)
+	draw_mesh.surface_end()
+
+# Called when the node enters the scene tree for the first time.
+func _ready() -> void:
+	var dup_material = material_override.duplicate()
+	material_override = dup_material 
+	pass # Replace with function body.
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta: float) -> void:
+	alpha -= delta * 3.5
+	material_override.albedo_color.a = alpha
+
+
+func _on_timer_timeout() -> void:
+	queue_free()

godot/scenes/weapon/misc/bullet_trail_generic.tscn

@@ -0,0 +1,24 @@
+[gd_scene load_steps=3 format=3 uid="uid://balgqtw1ijpw3"]
+
+[ext_resource type="Script" path="res://scenes/weapon/misc/bullet_trail_generic.gd" id="1_k8eg1"]
+
+[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_ybqvs"]
+transparency = 1
+albedo_color = Color(0.300204, 0.908317, 1.54018e-06, 0.458824)
+emission_enabled = true
+emission = Color(0.454139, 0.861507, 0, 1)
+emission_energy_multiplier = 16.0
+distance_fade_min_distance = 2.0
+
+[node name="BulletTrailGeneric" type="MeshInstance3D"]
+layers = 524288
+material_override = SubResource("StandardMaterial3D_ybqvs")
+visibility_range_end = 1891.27
+script = ExtResource("1_k8eg1")
+
+[node name="Timer" type="Timer" parent="."]
+wait_time = 0.05
+one_shot = true
+autostart = true
+
+[connection signal="timeout" from="Timer" to="." method="_on_timer_timeout"]

godot/scenes/weapon/misc/muzzle_flash.tscn

@@ -0,0 +1,3 @@
+[gd_scene format=3 uid="uid://bfelcp5dmag5r"]
+
+[node name="MuzzleFlash" type="MeshInstance3D"]