crouch jump is now back and you dont get stuck in line anymore so now do crouch jumping again

you crouch jump by holding ctrl and space and then holding any of the 4 directional buttons (but a and d are the fastest)

(train opens up around the 30 second mark)

do whatever you feel comfortable with when navigating through the place (but dont stop crouch jumping)

get to the alarm BZZZZZZZZ sound where you wait for the door to open at 54 seconds (but 55 is good enough i guess)

go into the room with barney and wait for like about a minute

when he stops talking to doc get ready to exit the room through the door

when it opens get to the ladder as fast as you can (climbing up the side is cool)

jump onto the box, and then jump into the window with ctrl held so you can crouch through it

immediately run, open the door, and then run to the other door up the stairs to stop the timer