what exactly do marines see?
Running through scenarios in my mind, it came to me that, even if a sensory chamber cloaks all structures, how would a cloaked hive appear?
One of the major advantages I can see by making sensory the first chamber is to cloak your first base, so a marine runs in and sees nothing so leaves. There was also some discussion about making the SC a better first chamber choice. But if the sensory chamber only cloaks the hive then a marine would see nothing there instead of an empty hive transperency. This would be a dead give away that a hive was there, and tip off the marine to other players possibly being in the area.
Maybe the very talented programmers fixed, but I thought it might be one of those things that just don't come up until someone plays with it.