yah I added func_fakebrushes to keep the bots out mostly but not totally when they shouldn't use it. As long as you get killed I consider that acceptable

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There might be ways to do more complex brushes (2-3 per floor) that would let you out. Or I could just shorten the brushes so you can exit the far side (of course that is no good if you are on the ladder). Another idea would be to make a single brush the size of the whole elevator in volume. It would be re-moved when the elevator is first operated and put back when it started moving. The brushes only impede movement from the outside surfaces. However you don't want to use a grenade when inside a brush. I will have to test what happens when the brush changes position to be sure.
The simplest thing is just remove the brushes since I have not yet seen a bot enter the elevator.
(except in the middle and I removed that connection.)
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Don't know if I agree about the window, though a small ticket window might be OK. I also would like a ventilation duct going from the axis spawn up behind the elevator to the roof. The bottleneck in that spawn is why I reduced bots team size.