Good point! We're going to be cautious, especially when cannot save during a mission.
I think it's a toggle for highlighting and centering at the flee area? At least I saw it working like this. When one gets to the flee zone, the flag button emerges on the left bottom interface and that one has a short tooltip already.
- When fleeing isn't allowed perhaps not showing or graying out that top right button would be also useful. In the latter case it could be explained in the tooltip too.
- When it's turned on, the character and tile selection are drawn underneath the flee area highlight. Perhaps reverse order would be better?
PS: tried this once. When the last character fled the map, the game says failed mission (withdrawal) and there is actually a new wip operation debriefing screen. Not sure if 'criminals fled = 2' in the attached image is right. I've practically ran to the exit right away without attacking, didn't registered anybody else fleeing than my 2 party members. (unless... hm Sam is wanted... we are the criminals!)