How can I get the script to check a random model from ServerStorage?

-- NinjoOnline --

map = game.ServerStorage.Maps:GetChildren()

h = Instance.new("Hint", game.Workspace)

while true do

--------------------------
-- Random map is chosen --
--------------------------	
	
	if game.Players.NumPlayers > 1 then
		h.Text = "Deciding what map to play"
		wait(5)
		ranMap = math.random(1, #map)
		mapChosen = map[ranMap]
		h.Text = "Map Chosen: " .. mapChosen.Name
		wait(3)
		mapChosenClone = mapChosen:Clone()
		mapChosenClone.Parent = game.Workspace.MapHolder
		wait(2)
		
-------------------------
-- Picks random killer --
-------------------------

        players = game.Players:GetChildren()
        local randomp = players[math.random(1,#players)]
        print(randomp.Name .. " is killer")
        randomp.TeamColor = BrickColor.new("Bright red")
        for i,v in pairs(players)  do
            if v.Name ~= randomp.Name then
                print(v.Name .. " is runner")
                v.TeamColor = BrickColor.new("Bright blue")
            end
        end

---------------------------------
-- Teleport players to the map --
---------------------------------

        rspawn = mapChosenClone.RunnerSpawn:GetChildren()
        kspawn = mapChosenClone.KillerSpawn:GetChildren()

        for i,v in pairs(game.Players:GetChildren()) do
            name = v.Name
            check = game.Workspace:FindFirstChild(name)
            check:MoveTo(rspawn[i].Position)
		end



---------------------------
-- Round begins countdown --
---------------------------
		
		for i = 3, 1, -1 do
			h.Text = "Game begins in: " .. i
			wait(1)
		end
		
-------------------------------
-- Countdown till round ends --
-------------------------------
		
		for i = 10, 1, -1 do
			h.Text = "Time left: " .. i
			wait(1)
		end
		h.Text = "The round has ended"
		wait(1)
		
------------------------------------		
-- Teleport players back to lobby --
------------------------------------
		
		for i,v in pairs(game.Players:GetPlayers()) do
			v.Character:MoveTo(Vector3.new(108, 11.19, -29))
		end
		wait(1)
		
---------------------
-- Destroy the map --
---------------------

		mapChosenClone:Destroy()
	
--------------------------------------------------
-- Needs to be 1 more player for round to begin --
--------------------------------------------------
	
	else
		h.Text = "You need 1 more player to join"
	end
	wait(1)
end






--[[
play = game.Players:GetChildren() 
	for i = 1,#play do 
	if p[i] ~= nil then
		if play[i].TeamColor == game.Teams.Runners.TeamColor then 
			play[i].Character.Humanoid.WalkSpeed = 0
			char = play[i].Character
			if char ~= nil then 
				torso = char:findFirstChild("Torso") 
				if torso ~= nil then 
					torso.CFrame = game.Workspace.MapHolder.(CHOSEN MAP)RunnerSpawn.CFrame + Vector3.new(math.random(-6, 6), 0, math.random(-6, 6))
					wait(0.025)
				end 
			end 
		end
	end 
end 
 ]]

Where it says (CHOSEN MAP) {LINE 114} I need it to be like a string or something that will be the randomly chosen map. Anyone know how I could manipulate a string into that part