@FunBotan: Go I'm not sure if this helps but...
Bridges are tricky stuff. You would have to use a combination terrain objects to make them walkable, trigger enabled/disabled terrain blockers as well as some unit that looks like a bridge and that is constructable. So I guess I would make copy of a command center or something and make it appear (change the model) to a bridge model.
FunBotan AuthorSo, i'v almost completed my first mapping project, but what it really lacks is a system of destructible-repairable bridges.
More definitely, what i need: 2 units (vertical and horizontal) with Mar Sara bridge models or smth like this, differing only in footprints. I've found a library (http://www.sc2mapster.com/maps/bridgetest/files/5-bridge-test/) that features a good solution for this, but when i try using the same one, i get lots of errors and my bridges get replaced by grey spheres. Maybe there's a mod or something that can help me?
Currently working on a campaign - "Children of the Void":
First map - The Hungry Swarm - is released to EU;
Second - The Titan Fist - is upcoming.