Add this to the bottom of your description.ext in your mission PBO.
class CfgRemoteExec
{
class Functions
{
mode = 1;
jip = 0;
class ExileServer_system_network_dispatchIncomingMessage
{
allowedTargets = 2;
};
class rvg_fnc_zed_spawn { allowedTargets=2; };
};
class Commands
{
mode = 0;
jip = 0;
};
};
Should allow Ravage Zombies to spawn.