As I have progressed throughout Year Zero it has always said that I have one unit out on a specific map. When I go on to the map to try and look for the unit, he apparently isnt there. The only thing that is on the map is my harvester. It is possible that the unit may be in the harvester but I do not get any option to make them exit the vehicle so that I can make them retreat. This is the only occurrence of it so far and I am unsure whether it has happened to other people or not. The map is Mountain Approached.