When Arma crashes a .RPT file containing information about your play session is recorded. This file can be extremely helpfull to mission makers when trying to bug fix, follow these easy steps to locate your RPT file:
1.) Open up windows file explorer and click the address bar
2.) Paste "%LocalAppData%\Arma 3"
3.) You should now be in the directory where RPT files are located
4.) If your game just crashed, it will be in the latest RPT file so sort by date modified and select the latest, if you have played since your last crash you will need to remember the time you crashed ans select the RPT file with the correct time stamp.
