Do you mean countdown as in 5, 4, 3, 2, 1?
Delay0 onActivate -> Client -> Center -> 51000 onActivate -> Client -> Center -> 42000 onActivate -> Client -> Center -> 33000 onActivate -> Client -> Center -> 24000 onActivate -> Client -> Center -> 1
You could've just used VCE, ask someone else how though because I'm a lazy arse you've already done it