Ok so I got this script from free models and I need to change it to make it different. It is a CustomChat Gui. I want it to when a specified person talks, it gives them a tag infront of their name and a special color. How can I edit this to make this work?

groupid= 000000
groupname="ABC"

game.Players.ChildAdded:connect(function (child) 
local label=Instance.new("StringValue",child) label.Name="Group"
local label2=Instance.new("StringValue",child) label2.Name="Rank"
if child:IsInGroup(groupid) then label.Value=groupname label2.Value=child:GetRoleInGroup(groupid) else label.Value="Unknown" label2.Value="Player" end 

child.Chatted:connect(function (msg)
	local v=Instance.new("StringValue")
	v.Value=child.Group.Value.." "..child.Rank.Value.." "..child.Name..":  "..msg
	local col=Instance.new("Color3Value",v)
	col.Name="Color"
	col.Value=child.TeamColor.Color
	game.Debris:AddItem(v,3)
		gui=game.StarterGui.ChatService.Chats
		t1=gui.Text1
		t2=gui.Text2
		t3=gui.Text3
		t4=gui.Text4
		t5=gui.Text5
		t6=gui.Text6
			t1.TextColor3=t2.TextColor3
			t1.Text=t2.Text
			t2.TextColor3=t3.TextColor3
			t2.Text=t3.Text
			t3.TextColor3=t4.TextColor3
			t3.Text=t4.Text
			t4.TextColor3=t5.TextColor3
			t4.Text=t5.Text
			t5.TextColor3=t6.TextColor3
			t5.Text=t6.Text
			t6.TextColor3=col.Value
			t6.Text=v.Value
	v.Parent=script
end) end)