no delay facing, there is a trigger for that lol
make unit face "angle" at "x"
set x to instantly.
try checking out the Channel abilities section,
you could make their shortcut to W,A,S,D
its done in Slashcraft, try check out their map,
when unit pressed D, he face right, and moved front
can be done by connecting unit cast an ability thing
anyways, there is a way to make yourself stand on top of things, even make destroyable baricade and props,
its easier to map
try Piling up barricades,
or make baricade's height using Ctrl page up or Down
and use triggers to do the rest,
there is a way to make it stand able, even any doadeds or unit can be made Standable
you could make houses and Stairs using The bridges in Wc3
try out Changing the bridge model into a table
and make it looks like stairs as much as possible with Ctrl Page up, and Down to vary their height
dont forget to make its pathing to none,
make sure you use the pathing blocker to block some ways which must be blocked...

that way you could make a metal slug style of gameplay, where there is stairs, and stuff...just move unit infront to make it looks like running up the stairs

...
if you want, i can make a map on it, or give you an example map..