So, I have released a plugin that allows the manipulation of what survivor bots can or cannot use.
https://forums.alliedmods.net/showthread.php?t=264265
Using this you should be able to deny snipers from any bots now without having to resort to Stripper, this also means you don't have to use stripper or edit any custom maps to remove snipers as you can simply disallow them now.
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