This PART OF A SCRIPT was made to repeat wait until all of the children (zombies) where dead (destroyed/deleted out of the model). I get no errors from this script, but it just doesn't work.
repeat
wait(5)
until game:GetService("Workspace").Zombies:GetChildren() < 1
I also tried this script:
repeat wait() until game:GetService("Workspace").Zombies:GetChildren() == 0
This one didn't work either. Any help would be appreciated!

2 comments
Yo, big thanks. You explained everything pretty well. I'll keep this in mind next time.
No problem. Hope everything works out.