How could I go about spawning certain things at certain waves?

if game.ReplicatedStorage.Values.Wave.Value == 2 then
		for i, v in pairs(CS:GetTagged("spawner")) do
		if game.ReplicatedStorage.Values.gameInProgress.Value == true then
			if game.ReplicatedStorage.Values.enemiesRemaining.Value > 0 then
				local NPC = game.ReplicatedStorage.SiegeMachine:Clone()
				NPC.Parent = v
				NPC.HumanoidRootPart.CFrame = v.CFrame
				CS:AddTag(NPC, "enemy")
				game.ReplicatedStorage.Values.enemiesRemaining.Value = game.ReplicatedStorage.Values.enemiesRemaining.Value - 1
			end
		end
end

My current issue at the moment is I want a certain creature to spawn at the second wave but it doesn't seem to activate it. What could I fix to make it to where the creature spawns at the second wave?

You need to update it with a repeat until function