This mod adds a zombie faction to event maps like Lab Rats and Prison Nightmare. It will only replace the assault groups, the script groups remain untouched, for this reason Safehouse Nightmare remained untouched, since all the spawns in it are scripted, you must be the host for the mod to work.
!!Attention!!
The mod will only work offline or with players who will have this mod installed, customers who have connected to your lobby or game session without this mod will not see zombies, only opponents who will appear according to the script (minidozer, medicdozer, snipers and Headless Titandozer from Hell).