How to make it so that map changes when there's only 1 player alive?

I tried to solve it this way. (Yes, that's how stupid I am) It's for a duel game that's why I just used Humanoid.Died instead of detecting the number of players alive. (I actually don't know how to) Please help, thank you! <3

local map1 = game.ServerStorage.Maps.Map1
local map2 = game.ServerStorage.Maps.Map2

map1:Clone().Parent = game.Workspace

game:GetService('Players').PlayerAdded:Connect(function(player)
	player.CharacterAdded:Connect(function(character)
		while true do
			
			character:WaitForChild("Humanoid").Died:Connect(function()
				
				print("tanga")
				
				game.Workspace.Map1:Remove()
	
				map2:Clone().Parent = game.Workspace
				
			end)
			
			character:WaitForChild("Humanoid").Died:Connect(function()
				
				print("tanga")
				
				game.Workspace.Map2:Remove()
	
				map1:Clone().Parent = game.Workspace
			
		end)	
		end
	end)
end)