Here is my code

print("Clear Server Loaded")

local Commands = {}

local function FindName(Name)
	
	for i, Player in pairs(game.Players:GetPlayers()) do
		if string.lower(Player.Name) == Name then
			return Player
		end
	end
	
	return nil
	
end

Commands.clr = function(Sender, Arguments)
	print("Running 'clr' command")
	
	print(Arguments[1],Arguments[2])
	
	for i, PlayerName in pairs (Arguments) do
		print(PlayerName)
	end
	
	local Authorizer = Arguments[1]
	local KPlayer = Arguments[1]
	
	if KPlayer then
		print("KOS player exists")
		local KosPlayer = FindName(KPlayer)
		
		if KosPlayer then
			print("KOS players character found")
			local Character = KosPlayer.Character:WaitForChild("Head")
			local KElements = Character.RankUI.Tag
			
			local Tag = KElements.TagTitle
			local TagShadow = KElements.TagShadow
			
			local FillText = "Authorzied"
			print("Variables set")
			
			Tag.Text = FillText
			--Tag.TextColor3 = (21, 255, 36)
			TagShadow.Text = FillText
			print("Text is set")
			
			Tag.TextTransparency = 0
			TagShadow.TextTransparency = 0
			print("Text is visible")
		end
	end
end

Commands.kos = function(Sender)
	print(Sender.Name)
    print("This will run when you say Kos")
end

game.Players.PlayerAdded:Connect(function(Player)
    if Player.Team.TeamColor == BrickColor.new("Black") then
        Player.Chatted:Connect(function(Message,Recipient)
            Message = string.lower(Message)
            
            local SplitString = Message:split(" ")
            local Command = SplitString[1]
            
            if Commands[Command] then
				                
				local Arguments = {}
				
				
				for i = 2, #SplitString, 1 do
					table.insert(Arguments,SplitString[i])
				end
				
                Commands[Command](Player,Arguments)
                
            end 
        end)
    end
end)

Right now it works only if you type the full player's name but I am interested in having a best match so they could type clr Nord instead of Clr NordicAnarchy.

Anonymous