There's a hint not to get lost in mansion maps neph, just look at how doors open, they will always open towards the main hall direction. There's a video on RU-vid from a guy teaching it, if you ever get in need for this knowledge
For Offense, you can go near the fire exit location, somehow jump on the big rock, and go there without ladder (but, well, it's a tad tricky at first, but become rather simple with a few tries and a good tutorial video lol ^^)
hey neph! i hope you're doing alright, you probably won't see this but a new containment breach mod just came out and it's called SCP:CB Director's Cut! (DC for short.) it basically overhauls the base game adding TONS of new interactions and SCPs along with MUCH harder and unpredictable gameplay. i think you would really like it as it takes the original formula and adds a shitton of new stuff!
I do not know if you still make SCP CB challenge videos, but Ill just drop this here: Dimension diver -Find a map seed with the 106 pocket dimenson puddle. -Jump in the moment you find the sinkhole, no matter which items you already have or haven't found. -Once there, beat the game using only the times from the HCZ and EZ. -No returning to the LCZ