Wanted a cleaner run with the linedef skip strategy and to see if sub 30 seconds is possible. It's close, I tried for awhile to find a faster opening strategy to hit that second button behind the two hellknights but this strategy of hugging the right wall and waiting for the left hellknight to walk forward was the best I could come up with.

After that second button, the linedef skip that breaks this map is just after the door that opens. You can see I hug the leftside wall. I just YOLO the skip for a good time and seemed to get it a decent %.