The following is taken from the Windows Event Viewer, it displays information about why the game crashed. Every single crash involves "PhysX3_x86.dll",
Event Viewer:
Faulting application name: arma3.exe, version: 1.0.109.911, time stamp: 0x522d98ae
Faulting module name: PhysX3_x86.dll, version: 3.2.4.1, time stamp: 0x5164246f
Exception code: 0xc0000005
Fault offset: 0x001521cb
Faulting process ID: 0x558
Faulting application start time: 0x01ceafc966696c48
Faulting application path: F:\Games\Steam\steamapps\common\Arma 3\arma3.exe
Faulting module path: F:\Games\Steam\steamapps\common\Arma 3\PhysX3_x86.dll
Report ID: b1920d71-1bbe-11e3-be6f-d43d7ebe6184
Faulting package full name:
Faulting package-relative application ID: