How can i fix this problem with FilteringEnabled?

i have a custom tool that has a reload time.

but i dont want exploiters to get to the event and fire it when its reloading so they can spam bullets. how can i accomplish this?

works something like this:

reloading = false

function fire()
    FE.Event.Shoot:FireServer() --Problem is here. if the client can access rep storage then cant they just evade having to reload and spam bullets? how do i prevent this
end

function click()
    fire()
    reloading = true
end