Replied over here - Lab is not loading - #73 by CalmQuail2332
TLDR on Issue 1 - you shouldn’t get 5 machines from the first scan if you’re following the instructions and limiting the scope of your scan to hosts that have open ports specified in the top100.conf file. If you scan for other ports, you may find more hosts, but that’s not what’s being asked here.
TLDR on Issue 2 - if you limit yourself to only scanning the staging domain with http-enum (or the related IP address that you already know) you won’t find anything, but the instructions say to “scan all IPs it resolves to!” - meaning that you should find a new IP address related to the staging domain, provided you edited the resolver file correctly to enable forward resolution.