I'm playing a SC2 "tower-defense"-like map, and need to find out how to build walls efficiently, so that units stay longer on the map and take more damage.
The map looks like this:
The most common strategy is to build your wall around a turning point (the red arrow). This seems to give you the ability to deal a lot of damage and a decent time advantage.
But how can I increase that time, by building two spirals, around two turning points, and make it so the unit has to pass one of them 2 times in order to get to the end?
I know it's possible, I've seen it in another map, but can't remember how. :(