Got it and tested it, Semfry!
Thanks a lot for your section, the ambush definitely comes as a surprise! (I was expecting something but the way it unfolded was unpredictable)
On Medium, it was actually rather easy (and I played through this before taking UB's route), so I'd say there's definitely no balance issues (could even be made harder if anything).
Thanks for changing the solidity of the aforementioned sheets, I didn't know there'd be a difference whether a sheet were solid or not
I rebuilt the map with UED 2.1 and all the BSP issues you mentioned, with the exception of lingering visual issues with the warp zones (but no crashing now), are gone: no invisible walls, and your upload actually had half of a floor grid in makemeunreal's section invisible, I adjusted the brushes and now the grid is again fully visible.
OP updated with the latest build of the map!! Oh, and thanks for adding your commentary, too!
Your idea to wrap up your path is good, I think, but two things:
- I'd say we keep it to one key there, which upon being picked up interrupts the experiment and leads to a boss fight - just saying that because at this point, I think the real final (when one has all the keys) would have to be built in a different .unr.
- UBerserker suggested that the green path is the only way at first, then it opens two other paths - the red path and presumably yours. I tend to like that idea, it makes it easier to balance difficulty.
Of course, these details are open to discussion!