The VRmod is a fabulous job of adding Black Mesa maps to the HL2 engine. I had no trouble getting to the topside motor pool, blow up the fuel drums to open the gate, and exploring the buildings inside-and-outside (all but two rooms who's partially open doors are blocked by fallen desks/book cases) ... and cannot find any doors that may lead me to another building, or any ladders I can use to get up to the 3rd floor.

At one end a hole is blasted in the wall and I watch another battle between the Xen and the marines, and I can go down and explore very thoroughly. I think I need to get up into the (2nd floor blasted open) building on the right of that court-yard, but could not find a single openable door or a way to power and open one of the security gates.

Videos of the PC game show a way to bounce up into that blasted bathroom (and move on), but that does not exist in the VR mod. I can cheat-load a further map, but I want to know what I missed. Can anyone who has played the Black Mesa VRmod give me a hint what I should be looking for?