I just had something aggravating happen to me in mission #3 of the Road to Montebourg campaign. In the first two images below, I assigned infantry units to move into these buildings. As you can see, there are doors on each building facing away from the street, which is where I wanted the units to enter:
What happened, though, is that the units went around to the front entrance of each building, in the process exposing themselves to far too much enemy fire and getting themselves needlessly killed/injured in the process.
As you can see here, there are also doors facing the street on both buildings:
So, is this a bug, or am I doing something wrong?