Trying to give every player a target (another player)?

I am trying to give everyone a target and a person targeting them, so person a might be targeting person b but is being targeted by person c. I have tried this, I do not believe it will work, but I can't test it in studio, because it requires multiple people. I have a problem because what if person a's target is person b and person b's target is person a and there are only 3 people in the server, person C will have no one to target. I can't make it so you can't target your hunter otherwise the final two won't be able to hurt each other. This is my script:

--[[Values]]
--[[Tables]]
Players = game.Players:GetChildren() -- Table of players

--[[Checking alive players]]
if player.TeamColor ~= "Grey" then

Colours = {
	BrickColor.new("Sand red"),
	BrickColor.new("Sand blue"),
	BrickColor.new("Sand green"),
	BrickColor.new("New yeller"),
	BrickColor.new("Br. yellowish orange"),
	BrickColor.new("Lavender"),
	BrickColor.new("Dusty Rose"),
	BrickColor.new("Deep blue")
}

--[[Colouring]]
function Assign()
	for a = 1, Players do
		a.Character.Parent.Torso.BrickColor = Colours[a]
	end
end

--[[Current players (The players still alive)]]
function Alive()
	Current = Players
	for i in Current do
		if i.TeamColor ~= "Grey" then
			Current.remove(i)-- No idea how to use this
		end
	end
	if #Current == 1 then
		Win()
	elseif #Current == 0 then
		Target() -- Start again
	end
end

--[[Selecting Hunters/Targets]]
function Select()
	b = Players[math.random(1, Current)] -- Random player 
	if a ~= b and a. Target == nil then
		a.Target.Value = b.Name
		b.Hunter.Value = a.Name
		print (a.."/'s target is:"..b)
		print (b.."\'s hunter is:"..a)
	elseif a == b then
		Select()
	end
end

--[[Win]]
function Win()
	print (Current[1].." won!")
	Target()
end

--[[Target, Hunter]]
function Target()
	Assign()
	Alive()
	for a = 1, Current do
		Select()
	end
end

wait(5)
Target()

Line 3.

You want to put that in a loop, otherwise it'd only be the first person that joined. Try making a PlayerAdded function and then assign the variable in the function.

edit:

--[[Colouring]]
20
function Assign()
21
    for a = 1, #Players do --add a hashtag to get the amount of stuff in a table. You originally had Players
22
        a.Character.Parent.Torso.BrickColor = Colours[a]
23
    end
24
end