Rooted. Decent, actually easy difficulty box. Kudos to creator 
My only complaint is like the others above: it’s really easy to mess up the box, by modifying the crucial parts. Also, contestants leave traces all over the place, leaving unintended hints for everyone else. Which is a shame because the box can be done very cleanly but most of the crowd seems to lack decency or skill to do so. And I’ve been working on VIP, it’s scary to think what’s happening on public servers.
At least dev/nulling the .bash_history would be a good idea. Also, preventing a certain executable from being writeable might bring some order to the machine.
Tips:
Low priv user: OSINT, then basic enumeration
User: Basic enumeration. then you might need to learn new language revshell. The breadcrumbs are there in case someone missed one of the most basic recon commands
Root: Find editable executables, thing when they can be executed, exploit
PM for nuggets.