How do i get zombie/bug mod to work?

[Akeldama]

I have no idea how to get the bug mod/Left 4 Block mod to start working. Any help?

[Ad Bot]

[Balshakaan]

Get the latest version maybe?

[MunkeyCheez]

Enable it?
Put it in the Add ons folder?

[goz3rr]

/enablezombies or /enablezombiemod  
and make sure you have the survivor playertype activated.

[Akeldama]

the last one worked thanks