need help to stop script from spawning in too many zombies?

so i got this script that controls the main spawning for zombies

local CS = game:getService("CollectionService")

while true do
	wait(5)
	for i, v in pairs(CS:GetTagged("spawner")) do
		if game.ReplicatedStorage.Values.gameInProgress.Value == true then
			if game.ReplicatedStorage.Values.zombiesRemaining.Value > 0 then
				local NPC = game.ReplicatedStorage.Zombie:Clone()
				NPC.Parent = v
				NPC.HumanoidRootPart.CFrame = v.CFrame
				CS:AddTag(NPC, "Zombie")
				game.ReplicatedStorage.Values.zombiesRemaining.Value = game.ReplicatedStorage.Values.zombiesRemaining.Value - 1
			end
		end
	end
end

but i want to make a cap of like 24 - 30 zombies allowed at a time. when the rounds get higher too many zombies spawn into the map. but i dont know how to write it out. an idea i had was this

local CS = game:getService("CollectionService")

while true do
	wait(5)
	for i, v in pairs(CS:GetTagged("spawner")) do
		if game.ReplicatedStorage.Values.gameInProgress.Value == true then
			if game.ReplicatedStorage.Values.zombiesRemaining.Value > 0 then
				local NPC = game.ReplicatedStorage.Zombie:Clone()
				NPC.Parent = v
				NPC.HumanoidRootPart.CFrame = v.CFrame
				CS:AddTag(NPC, "Zombie")
				game.ReplicatedStorage.Values.zombiesRemaining.Value = game.ReplicatedStorage.Values.zombiesRemaining.Value - 1
			end
			if game.ReplicatedStorage.Values.gameInProgress.Value == true then
				if game.ReplicatedStorage.Values.zombiesRemaining.Value < 24 then
					
				end
			
			end
		end
	end
end

but i honestly dont know how to write out "stop spawning" .

So, I found a few flaws in your code.

In first like, make 'g' capital.

local CS = game:GetService("CollectionService")

Since, your zombie spawning script (script 2), [on Line 6 and Line 14], you are checking the same value from Replicated Storage again and again. So, I prefer you to remove the 'if' statement of Line 14.

if game.ReplicatedStorage.Values.gameInProgress.Value == true then

Also, you said you want to spawn 24-30 zombies. So, at start you can create a local variable with math.random.

local ZombieSpawn = math.random(24, 30) -- 24 is minimum and 30 is maximum

At line 15, instead of:

if game.ReplicatedStorage.Values.zombiesRemaining.Value < 24 then

-- You can do:

if game.ReplicatedStorage.Values.zombiesRemaining.Value < ZombieSpawn then 

If you want to stop the spawning of zombies, you can simply add break after the line:

if game.ReplicatedStorage.Values.zombiesRemaining.Value < ZombieSpawn then 
	break
end

Make sure that 'break' will exit the loop. So, I recommend you to add a function or trigger(if/else statements or Remote Events) to trigger the zombie loop again.

Lemme know if it helped!