Level 3A is ready, same link as before. I have used a different technique for the VBL this time (full VBL and carve the rooms vs. outline each room), and it was much easier than before. I will keep it for the other levels.
I have also included the naming convention for the teleporters from Wolph42's bag of tricks to the stairs. The module itself is not included in the map.
holy cow batman, those maps are HUGE, awesome work.
I did run a check on your maps with the bag of tricks and got a couple of errors:
Error: found only one InterPad 1 on map Level 1
Error: found only one InterPad 2 on map Level 1
Error: found only one InterPad 3 on map Level 1
Error: found only one InterPad 10 on map Level 2A
for the interpads to work, they need to be paired, e.g. 'interPad 1' on 'level 1', is connected to 'interPad 1' on any other level. If another 'InterPad 1' is not found on another level, then obviously it can't be paired and will thus not work. To fix this you simply need to make sure that those two pads have (stairs on lvl 1 connected to stairs lvl2) have the same number.