Black Mesa Xen Bugs

Map c4a1b
Setpos -12310.4033.20 -3197.338379 9523.978516;setang -49.162552 -5.907242 0.000000

Climb this ramp and then duck down in order to enter the opening to the left.

If you jump off the platform you’ll become stuck and unable to escape without using noclip.