There are two entrances to the broken down bus model. One entrance has a broken door laying down. That broken door model has an opening for where the window should be. I'm almost certain that it was IN the window of the fallen over door, where I got stuck. If it was not in the window of the fallen door, then it was between the fallen door and the closest wall. I had to wait for someone to find me then punch me to death because of the stress test not having vaulting implemented.