Hello! Will try to explain the steps I've taken
1. Editing a mission in the editor.
2. Pressed save.
3. ArmA instantly stopped responding and shortly after, the whole system stopped responding to any commands as well, so i had to reboot.
4. As a result - i cannot open the mission anymore. It was NOT binarized, the mission.sqm is full of "NUL", size is as it was (approx 700Kb).
I cannot use merge option as i don't see the mission folder in the list. Tried CfgConvert etc, nothing helped.
I'm almost sure I have nothing more to try and the file is gone, but I hope the community may give some advice. Thank you!