The vent on top of server room isn't breakable, there is a vent inside a drawings on the wall on top of servers
To get out of the blood room you can just press 'C' and you will get teleported back
Thank you for sending this. I had already discovered the ragdoll trick, but I didnt figure out that I was supposed to leave for a *very* long time. I have several screenshots from other secrets I discovered in the tutorial, but I will be posting them later.
As far as the vent is concerned, I did discover that but I was trying to be down low about that with the "red herring" quote.