Currently i'm playing the preventive diplomacy mission from the arma3 campaign.
After loading a usersave or autosave file, the mission immediately fails because of friendly fire.
I had never shoot before of other teammates or allied troops.
Bug/error discovered yesterday, 2016-05-01, dev build no. 1.59.135790 / Win 10
I will test it again, today with dev build no. 1.59.135811.. will keep you up to date!