Rayfield universal script best

-- Wait for the game to fully load
if not game:IsLoaded() then 
    game.Loaded:Wait() 
end

local CoreGui = game:GetService("CoreGui")
local Players = game:GetService("Players")
local LocalPlayer = Players.LocalPlayer
local UserInputService = game:GetService("UserInputService")
local RunService = game:GetService("RunService")
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local Lighting = game:GetService("Lighting")
local Camera = workspace.CurrentCamera

-- Helper function to get GUI Parent safely
local function getParentGui()
    if gethui then
        return gethui()
    end
    local success, res = pcall(function() return CoreGui end)
    if success and res then
        return res
    end
    return LocalPlayer:WaitForChild("PlayerGui")
end

-- 1. INSTANT LOADING SCREEN
local LoadGui = Instance.new("ScreenGui")
LoadGui.Name = "CustomLoadGui"
LoadGui.ResetOnSpawn = false
LoadGui.IgnoreGuiInset = true
LoadGui.Parent = getParentGui()

local LoadFrame = Instance.new("Frame")
LoadFrame.Size = UDim2.new(1, 0, 1, 0)
LoadFrame.BackgroundColor3 = Color3.fromRGB(8, 8, 8)
LoadFrame.Parent = LoadGui

local CenterFrame = Instance.new("Frame")
CenterFrame.Size = UDim2.new(0, 450, 0, 200)