Why is there no water in any of the bases? Since these were places people were supposed to be in at one time, there should be some form of water available... Or at least have something that USED to have water... that either no longer works at all or has stagnant water as if there was once fresh water.... if it was intended for there to be no water in the bases. Either one of those would add to the overall story if there isn't supposed to be water in the bases. It could also be a small quest in order to get the water running again.

You can occasionally find drops on the ceiling. I think I seen this in the hedge lab.   More clean areas would also be nice.