During my playthrough I had several problems. The first problem is that the door in red spawn does not open and the numbers above the green squares arent appearing. I tried shooting the green squares if they were buttons but nothing happened. I also had typed nav_generate and once the map restarted the bots wouldve move. I killed the skeletons but when it came down to destroying the pillars theres no real challenge because skeletons didnt spawn. I then could keep hitting the Yeti but since his attacks didnt do any real affect and there was barely any challenge, I have a few questions.

Why doesnt the door at the start of the map open, and why wont bots move?
Why dont skeletons spawn?
What is the purpose of the blu team?