Why is my script misbehaving when it spawns players?

I wrote a script that detects when a player spawns, and then (if they're a zombie in the context of my game) gives them clothes and puts them in the map. For some reason, players spawn with millions of shirts and pants and hats and that's not at all what I want. How can I make it so players spawn with only 1 outfit? Here's what the root looks like: https://imgur.com/a/vgrLv3o

local Players = game:GetService("Players")

local function onCharacterAdded(character)
    Player = game.Players:GetPlayerFromCharacter(character)
    wait(0.5)
    if Player.PlayerParameters.HumanOrZombie.Value == 0 then 
        -- no spawn required

    elseif Player.PlayerParameters.HumanOrZombie.Value == 1 then
        -- human!
        wait(0.5)
        survivorspawns = workspace:WaitForChild("SurvivorSpawns"):GetChildren()
        randomspawn = survivorspawns[math.random(1, #survivorspawns)]
        character:MoveTo(randomspawn.Position)

    elseif Player.PlayerParameters.HumanOrZombie.Value == 2 then
        -- zombie!
        for i,v in pairs(character:GetChildren()) do
            if v:IsA("Accessory") then
                v:Destroy()
            elseif v:IsA("BasePart") then
                v.BrickColor = BrickColor.new("Dark green")
            elseif v:IsA("Shirt") then
                v:Destroy()
            elseif v:IsA("Pants") then
                v:Destroy()
            elseif v:IsA("ShirtGraphic") then
                v:Destroy()
            end
            if game.ReplicatedStorage.MapName.Value == "Grassy Plains" then
                randomclothes = game.ServerStorage.ZombieClothes.GrassyPlains:GetChildren()
                pickedclothes = randomclothes[math.random(1, #randomclothes)]
                for i,x in pairs(pickedclothes:GetChildren()) do
                    x:Clone().Parent = character
                end
            end
        end
        wait(0.5)
        zombiespawns = workspace:WaitForChild("ZombieSpawns"):GetChildren()
        randomspawnn = zombiespawns[math.random(1, #zombiespawns)]
        character:MoveTo(randomspawnn.Position)
    end
    if game.ReplicatedStorage.RoundBeginning.Value == true then
        character.Humanoid.WalkSpeed = 0
    end
end

local function onPlayerAdded(player)
    player.CharacterAdded:Connect(onCharacterAdded)
end

Players.PlayerAdded:Connect(onPlayerAdded)