Still not convinced by a c_move (movement) approach but otherwise, very cool! I'd be interested in a video of a group of units moving through the gate (and accessing the 2nd floor would be cool, too, if you manage to fix it)!

EDIT: @rvL_eXile: The greenhouse looks pretty cool. Only some broken windows look a little weird, I don't think that glass breaks like for example in the first shot the window with the oval shaped hole. I could be mistaken, though, and it may depend on the glass.