So far I've gotten attack units (or any unit for that matter) to move around the map by telling them "Go here." However that doesn't do any good if the place you want them to go is completely surrounded in walls. (literally) and seeing that the player is also starting at random and can place the walls where they will, it creates invincibility for them against the units barring any natural disaster or such that create a whole for you. How can you locate an issue like this and tell them to blast a hole in it and get inside? (note if you try to do build a carapace wall in the colony builders shipped with the game they do this.)