if the enemy attacks you on the global map, the AI in battle must be aggressive (that would not be so – Raiders attacked YOU AND ARE WAITING FOR YOU AT THE HILL). And, of course, you should be able to step back from this battle, (if no losses and injuries, move on the edge of the map) without further minus for group morale. I think that “normal” mercenaries would be only grateful to the commander for the fact that he brought them out of an ambush or death battle.