How do I make all models in my roblox game world regenerate when the round restarts?

I have seen many model regeneration scripts that go by time but this is not what I want. I want a script that regenerates the models when my lobby script restarts (the lobby script I am using detects when all players have died and then teleports them out of the lobby and into the game play area).

Lobby script:

local oldMessage = ""
local minPlayers = 2
 
function teleportAllPlayers()
	local target = CFrame.new(workspace.TeleportTarget.Position)
	for i, player in ipairs(game.Players:GetChildren()) do
		player.Character.Torso.CFrame = target + Vector3.new(0, i * 5, 0)
		player.Playing.Value = 1
		
	end
end
 
function message(message)
	if oldMessage ~= message then
		oldMessage = message
		print(message)
	end
end
 
function playersCurrentlyPlaying()
	for i, player in ipairs(game.Players:GetChildren()) do
		if player.Playing.Value == 1 then return true end
	end
	return false
end
 
game:GetService('Players').PlayerAdded:connect(function(player)
	player.CharacterAdded:connect(function(character)
		character:WaitForChild("Humanoid").Died:connect(function()
			player.Playing.Value = 0
		end)
	end)
 
	local playing = Instance.new("IntValue", player)
	playing.Value = 0
	playing.Name = "Playing"
end)
 
 
while(true) do
	wait(10)
	if #game.Players:getPlayers() >= minPlayers then
		if playersCurrentlyPlaying() then
			message("Waiting for the current game to end...")
		else
			message("There are enough players for a new game!  Teleporting...")
			wait(1)
			teleportAllPlayers()
		end
	else message("Waiting for more players...") end
end

Sorry if I goofed up while asking this question, this is my first time using this website.

Group all of the target models and call it "Models" Copy and paste this group into ServerStorage

function reset()
	workspace.Models:Destroy()
	game.ServerStorage.Models:Clone().Parent = workspace
end

(if statement regarding whether or not all players have died) then
	reset()
end