Hello, i tought you might be intrested in something i've created, it's a terrain breaking system, and was made to go with escape maps and 2D generators, it will allow units on a 2D engine to break the ground below them and fall. (a similar thing happens in escape maps but they dont fall, they would probably just die)
if your intrested click this link:
http://www.hiveworkshop.com/forums/spells-569/terrain-breaking-system-v1-0-a-150739/
If your ever plannin to make a mpa in 2D this could help with making secret pathways and such eg.
----------------------- <- normal pathway
| | <- fall tunnel
|__________________ <- secret pahtway