[OciXCrom]

#include <amxmodx>
#include <chatmanager>
#include <zmvip>

public plugin_init()
{
    register_plugin("CM: ZV Prefix", "1.0", "OciXCrom")
}

public cm_on_player_data_updated(id)
{
    if(zv_get_user_flags(id) & YOUR_FLAG_HERE)
    {
        cm_set_user_say_format(id, "format_admin", "format_admin_team") // or any other custom chat format that contains the $admin_prefix$ variable
        cm_set_user_prefix(id, "[Your Prefix Here]")
    }
}