Hey guys
I'm still studying this like mad (over a year now of close observation!) and soon, I think some of my efforts will be shown
Knowing that the true set in existence was nowhere near the perceived size of the colony, I've followed the film cuts to come up with a gauge of how it should have been if it truly existed (confused yet?

)
I believe each level's "main corridor" are offset from each other. See hastily sketched drawing attached.
On arrival, Hicks and Drake take the stairs up immediately after entering North Lock, as Hudson and Vasquez investigate the main corridor on Level 1. When Hicks emerges at the top of the stairs on Level 2, he's right in the middle of the main corridor. This shows the Level 2 main corridor is shifted over to the West
Also, same general area now, towards the end of the film. Ripley and Hicks lose Newt under the Basement. Hicks pulls Ripley from the main corridor in the Basement and they run a length of corridor in the East direction to a waiting elevator at the end. When they reach the surface/Level 1, they emerge flush with the Level 1 main corridor (although the elevator is between the two bulkhead doors of North Lock...)
Thoughts? Am I onto something here? lol
Attachment:
Main Corridor Offset Lvl 1-2.jpg [ 694.86 KiB | Viewed 43000 times ]