@HiddenDeath, could you upload the troubleshooting report (ArmaReport.zip) for the developers to see? You can drag and drop into the comment box, or upload it to a file sharing service such as Dropbox and then link to the file.

If you are able to could you try to reproduce the crash and take notes of what you were doing before the game crashed? Any more details about the crash that could help the devs would be great.

Also try verifying the integrity of the game cache.