I can't find a pattern, but the game normally crashes after playing about 10 minutes in Commander mode see here for one that just happened:
Faulting application name: bf4.exe, version: 1.0.0.1, time stamp: 0x529e0a4d
Faulting module name: bf4.exe, version: 1.0.0.1, time stamp: 0x529e0a4d
Exception code: 0xc0000005
Fault offset: 0x000000000078429b
Faulting process id: 0x1d04
Faulting application start time: 0x01cef8f88bd5e4c2
Faulting application path: D:\Program Files (x86)\Origin Games\Battlefield 4\bf4.exe
Faulting module path: D:\Program Files (x86)\Origin Games\Battlefield 4\bf4.exe
Report Id: 8838c3b7-64ee-11e3-827f-d43d7eb842d8
Faulting package full name:
Faulting package-relative application ID:
