i need help makeing my zombies spawn in a wave of like 5 then wait then wave2?

i tryed doing it but i just failed so i just made zombies spawn evry bit i need help makeing them in waves and add more zombies hears my script

local Path = game:GetService("PathfindingService"):ComputeSmoothPathAsync(workspace.Start.Position,workspace.Wall.Position + Vector3.new(3,0,0),500) local Positions = Path:GetPointCoordinates() math.randomseed(os.time()) local EnemyGroup = game:GetService("PhysicsService"):CreateCollisionGroup("Enemies") local PlayerGroup = game:GetService("PhysicsService"):CreateCollisionGroup("Players") game:GetService("PhysicsService"):CollisionGroupSetCollidable("Enemies","Players",false) game:GetService("PhysicsService"):CollisionGroupSetCollidable("Enemies","Enemies",false) game:GetService("PhysicsService"):CollisionGroupSetCollidable("Players","Players",false) local function Bounty(Enemy) local Total = Enemy.Bounty.Value for i,Tag in pairs(Enemy.Credit:GetChildren()) do local Player = game.Players:FindFirstChild(Tag.Name) if Player then local Percent = Tag.Value / Enemy.MaxHealth.Value local Reward = math.ceil(Total * Percent) Player.leaderstats.Cash.Value = Player.leaderstats.Cash.Value + Reward end end end

local function SpawnEnemy(Type) local Enemy = game.ServerStorage.Enemies:FindFirstChild(Type):Clone() local Alive = true Enemy.Parent = workspace.Enemies

for i,Child in pairs(Enemy:GetChildren()) do
    if Child:IsA("BasePart") then
        Child.CanCollide = false
    end
end 
local Objective 

Enemy.HumanoidRootPart.CFrame = workspace.Spawn.CFrame + Vector3.new(math.random(-4,4),0,math.random(-4,4))
local Index = 0
local function NextObjective(Success)
    if Success then
        Index = Index + 1
    end
    if Positions[Index] then
        Enemy.Humanoid:MoveTo(Positions[Index])
        Objective = Positions[Index]
    else
        local Explode = Instance.new("Explosion",workspace)
        Explode.Position = Enemy.HumanoidRootPart.Position
        Explode.BlastPressure = 0
        workspace.Wall.Health.Value = workspace.Wall.Health.Value - Enemy.Damage.Value
        Alive = false
        Enemy:Destroy()
    end
end

NextObjective(true)
Enemy.Humanoid.MoveToFinished:connect(function(Reached)
    -- if they are *close enough* consider it as good as the real deal?
    if not Reached then
        if (Enemy.HumanoidRootPart.Position - Objective).magnitude < 4 then
            print("Reached override")
            Reached = true
        end
    end
    NextObjective(Reached)
end)

Enemy.Health.Changed:connect(function()
    if Enemy.Health.Value < 0.1 then
        if Alive then
            Enemy:BreakJoints()
            Alive = false
            if Enemy.Head:FindFirstChild("Death") then
                Enemy.Head.Death:Play()
            end
            Bounty(Enemy)
            Enemy:Destroy() 
        end
        game.Debris:AddItem(Enemy,1)
    end
    Enemy.Humanoid.Health = (Enemy.Health.Value/Enemy.MaxHealth.Value) * 100
end)

for i,Part in pairs(Enemy:GetChildren()) do
    if Part:IsA("BasePart") then
        game:GetService("PhysicsService"):SetPartCollisionGroup(Part,"Enemies")
    end
end

if Enemy:FindFirstChild("WalkAnim") then
    local Track = Enemy.Humanoid:LoadAnimation(Enemy.WalkAnim)
    Track:Play()
--  Enemy.WalkAnim:Play()
end

end

wait(1)

for i,Wall in pairs(workspace.Path.Walls:GetChildren()) do if Wall.Name == "Wall" and Wall:IsA("BasePart") then Wall.Transparency = 1 Wall.CanCollide = false end end

while true do -- its right hear i need help with! wait(1) local Chance = math.random(1,10) if Chance == 7 then SpawnEnemy("strong zombie") else SpawnEnemy("zombie") end

end