Player Transparency

Transparency.lua

local rStorage = game:GetService("ReplicatedStorage")
local rEvents = rStorage:WaitForChild("RemoteEvents")
local plr = game.Players.LocalPlayer

rEvents.HidePlayers.OnClientEvent:Connect(function()
	for i,v in pairs(game.Players:GetChildren()) do
		if v.Name ~= plr.Name then
			local char = workspace:WaitForChild(v.Name)
			
			for i,part in pairs(char:GetDescendants()) do
				if part:IsA("BasePart") then
					part.Transparency = 1
				end
			end
		end
	end
end)

rEvents.ShowPlayers.OnClientEvent:Connect(function()
	for i,v in pairs(game.Players:GetChildren()) do
		if v.Name ~= plr.Name then
			local char = workspace:WaitForChild(v.Name)
			
			for i,part in pairs(char:GetDescendants()) do
				if part:IsA("BasePart") then
					part.Transparency = 0
				end
			end
		end
	end
end)

rEvents.HideSelf.OnClientEvent:Connect(function()
	local char = workspace:WaitForChild(plr.Name)
	for i,v in pairs(char:GetDescendants()) do
		if v:IsA("BasePart") or v:IsA("Decal") then
			v.Transparency = 1
		end
	end
end)