Lucidstuck II

so we need to go to the top floor, grab the keycard, go to the underground floor to get the star, then leave.
though, looking at the floor plan, the star room has two doors, only one of which needs a keycard. so we dont need the top floor at all?
gonna draw a simple plan of what I would do in paint, hold on for some shitty scribbles.

alright, here we go. no idea how to embed images, so just click the link.
https://imgur.com/a/aWuZk

first we wait for the guards at 1 to leave. then we take the corridor at 2, knocking out/killing the guard if we have to. enter the small room at 3, then exit to 4. take the elevator at 5 down to 6.
exit the elevator when the guards turn around the corners or just arent looking in your direction, then quickly enter 7. enter the door at 8 and there we are.
then just retrace the steps and we shouldd be done.

chameleon suit, multitool and radar will probably be the most useful with that route.