And once again

scenes_old_2/maps/base/entry_screen/entry_screen.gd

@@ -0,0 +1,11 @@
+extends Control
+
+
+func _on_blue_pressed() -> void:
+	helpers.get_server_node().set_player_side.rpc_id(1, PlayerData.blue)
+	visible = false
+
+
+func _on_red_pressed() -> void:
+	helpers.get_server_node().set_player_side.rpc_id(1, PlayerData.red)
+	visible = false

scenes_old_2/maps/base/entry_screen/entry_screen.tscn

@@ -0,0 +1,41 @@
+[gd_scene load_steps=2 format=3 uid="uid://guhvtj7wqb2y"]
+
+[ext_resource type="Script" path="res://scenes/maps/base/entry_screen/entry_screen.gd" id="1_akbgo"]
+
+[node name="EntryScreen" type="Control"]
+layout_mode = 3
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+script = ExtResource("1_akbgo")
+
+[node name="Blue" type="Button" parent="."]
+layout_mode = 1
+anchors_preset = 6
+anchor_left = 1.0
+anchor_top = 0.5
+anchor_right = 1.0
+anchor_bottom = 0.5
+offset_left = -8.0
+offset_top = -4.0
+offset_bottom = 4.0
+grow_horizontal = 0
+grow_vertical = 2
+text = "Blue"
+
+[node name="Red" type="Button" parent="."]
+layout_mode = 1
+anchors_preset = 4
+anchor_top = 0.5
+anchor_bottom = 0.5
+offset_top = -4.0
+offset_right = 8.0
+offset_bottom = 4.0
+grow_vertical = 2
+text = "Red
+"
+
+[connection signal="pressed" from="Blue" to="." method="_on_blue_pressed"]
+[connection signal="pressed" from="Red" to="." method="_on_red_pressed"]