Malfunctioning code? (Script works, algorithm problem)

I have this code, what it does it when a player gets 2 or more kills, a killing spree sound plays and gui pops up on the screen for all players in the server (except grey team).

The problem: The sound and gui only work for the local player (ie, the person who got the kills)

Here's the code. Like I said, not sytax errors. There is an underlying algorithm error somewhere and I need help.

Blue is one team, Red is another team

repeat wait(2) until game.Players.LocalPlayer.Character~=nil
wait(.5)
kid = game.Players.LocalPlayer

kid.Changed:connect(function(change)
	wait(.1)
	if (change == "TeamColor") then
			if workspace.Blue:FindFirstChild(game.Players.LocalPlayer.Name) then
	workspace.Blue[game.Players.LocalPlayer.Name].Kills.Changed:connect(function()

		for i,v in pairs(game.Players:GetChildren()) do --//Blue//--
				if (game.Players:FindFirstChild(v.Name) ~= nil) then
					if (game.Players[v.Name].Character ~= nil) then
						if not (game.Players[v.Name].TeamColor == BrickColor.new("Mid gray")) then --if the menu is open, add condition to return  end this later

							if (workspace.Blue[game.Players.LocalPlayer.Name].Kills.Value >= 2) then

							if game.Players[v.Name]:FindFirstChild(PlayerGui) then

								game.Players[v.Name].PlayerGui.GameGui.KillSpree.PlayerPic.Image =
								"http://www.roblox.com/Thumbs/Avatar.ashx?x=100&y=100&userid=" ..game.Players.LocalPlayer.userId
							
								if (workspace.Blue[game.Players.LocalPlayer.Name].Kills.Value == 2) then
									game.Players[v.Name].PlayerGui.GameGui.KillSpree.PlayerPic.Info.Text =
									game.Players.LocalPlayer.Name.." is on a DOUBLE KILL with 2 Kills!"
									game.Players[v.Name].PlayerGui.LocalPlayerScripts.DoubleKill:Play()
										elseif (workspace.Blue[game.Players.LocalPlayer.Name].Kills.Value == 3) then
									game.Players[v.Name].PlayerGui.GameGui.KillSpree.PlayerPic.Info.Text =
									game.Players.LocalPlayer.Name.." is on a TRIPLE KILL with 3 Kills!"
									game.Players[v.Name].PlayerGui.LocalPlayerScripts.TripleKill:Play()
										elseif (workspace.Blue[game.Players.LocalPlayer.Name].Kills.Value == 4) then
									game.Players[v.Name].PlayerGui.GameGui.KillSpree.PlayerPic.Info.Text =
									game.Players.LocalPlayer.Name.." is on a ULTRA KILL with 4 Kills!"
									game.Players[v.Name].PlayerGui.LocalPlayerScripts.UltraKill:Play()
										elseif (workspace.Blue[game.Players.LocalPlayer.Name].Kills.Value == 5) then
									game.Players[v.Name].PlayerGui.GameGui.KillSpree.PlayerPic.Info.Text =
									game.Players.LocalPlayer.Name.." is on a MEGA KILL with 5 Kills!"
									game.Players[v.Name].PlayerGui.LocalPlayerScripts.MegaKill:Play()
										elseif (workspace.Blue[game.Players.LocalPlayer.Name].Kills.Value > 5) then
									game.Players[v.Name].PlayerGui.GameGui.KillSpree.PlayerPic.Info.Text =
									game.Players.LocalPlayer.Name.." is on a RAMPAGE with "..workspace.Blue[game.Players.LocalPlayer.Name].Kills.Value.." Kills!"
									game.Players[v.Name].PlayerGui.LocalPlayerScripts.Rampage:Play()
								end
								game.Players[v.Name].PlayerGui.GameGui.KillSpree.PlayerPic:TweenPosition(UDim2.new(0, 10, 0, 0), "Out", "Back", 1.5, true)
								
							wait(5.5)
							
								if game.Players:FindFirstChild(v.Name) then
								game.Players[v.Name].PlayerGui.GameGui.KillSpree.PlayerPic:TweenPosition(UDim2.new(-20, 10, 0, 0), "Out", "Quart", 4, false)
								end
							end
							end
						end
					end
				end
			end
	end)

			end
		elseif workspace.Red:FindFirstChild(game.Players.LocalPlayer.Name) then
			print'do nothing'
			else

	end
end)

The problem is that you try to do that from local script. You should definetely make a server script, that makes the GUI pop up for everyone. Now, when you need to show that GUI and play sound, fire a RemoteEvent, that you hook up with your script, and pass it the player who got the spree. You could also pass what kind of spree it was, so you could handle all streaks with one script.

If you don't know how to use RemoteEvent, then here is a little demo:

LocalScript:

game.ReplicatedStorage.RemoteEvent:FireServer("Player1", "killstreak:2")

Script:

game.ReplicatedStorage.RemoteEvent.OnServerEvent:connect(function(playerName, data)
--(..)
end)