Why is the ranks for my group not auto updating for the overhead whenever I join?

local User = script:WaitForChild("Username")
local Player = game.Players.LocalPlayer
local Rank = script:WaitForChild("Rank")
local Regiment = script:WaitForChild("Regiment")

game.Players.PlayerAdded:connect(function(Player)
	Player.CharacterAdded:connect(function(Character)
		spawn(function()
			wait()
			local c = User:clone()
			local a = Rank:clone()
			local b = Regiment:clone()
			a.Adornee = Character:WaitForChild("Head")
			a.TextLabel.Text = Player:GetRoleInGroup(GroupID)
			a.Enabled = true
			a.Parent = Character
			b.Adornee = Character:WaitForChild("Head")
		local regimentIDs = {RegimentID} 
			for i,regimentID in pairs(regimentIDs) do
				if Player:IsInGroup(regimentID) then
					b.TextLabel.Text = Player:GetRoleInGroup(regimentID)
	end
end
			b.TextLabel.TextColor3 = (Player.TeamColor.Color)
			b.Enabled = true
			b.Parent = Character
            c.Adornee = Character:WaitForChild("Head")
			c.TextLabel.TextColor3 = (Player.TeamColor.Color)
			c.TextLabel.Text = Player.Name
			c.Enabled = true
			c.Parent = Character
			Character:WaitForChild('Humanoid').NameOcclusion = Enum.NameOcclusion.OccludeAll
			local h = Character.Head:Clone()
			local m = Instance.new('Model',Character)
			m.Name = 'NameTag'
			h.Parent = m
			h.Transparency = 1
			h:WaitForChild('face'):Destroy()
			Character.Head.Transparency = 0
			local w = Instance.new('Weld',Character.Head)
			w.Part0, w.Part1 = Character.Head, h
			a.StudsOffset = Vector3.new(0, 1.8, 0)
			b.StudsOffset = Vector3.new(0, 1.3, 0)
			c.StudsOffset = Vector3.new(0, 2.55, 0)
		end)
	end)
end)

The ID's I have filled in just not exposing them to everyone. I was thinking it was due to the order of the functions, but have had no luck.