Whenever I'm in the 3d editor, regardless if it's modded or unmodded,if I try to edit a squads behavior(ie change from aware to safe) as soon as a press okay it causes the infamous "referenced memory could not be read" error and forces Arma to close. Happens whether or not you change any of the settings,simply pressing the okay button does the trick as well as simply canceling seems to not cause a crash either . Editing the individual unit's attributes works fine and it doesn't seem to matter if the squad is comprised of multiple units or if it is a different faction. Began happening after I updated my Red Hammer Studios mods but as stated previously trying to run vanilla results in the same thing.