Thanks Wulf, appreciate the quick reply. I can't place any guarantees the skill of the players involved in the engagements, other than to point out that they are more than proficient.

Sure does!

With -nobenchmark in Launch Parameters, the game still launches but a different error message is given.

Problem signature:

  Problem Event Name:	APPCRASH
  Application Name:	arma3.exe
  Application Version:	0.56.104.778
  Application Timestamp:	5181136d
  Fault Module Name:	atidxx32.dll
  Fault Module Version:	8.17.10.489
  Fault Module Timestamp:	5154f613
  Exception Code:	c0000005
  Exception Offset:	000f9b24
  OS Version:	6.1.7601.2.1.0.256.48
  Locale ID:	3081
  Additional Information 1:	0a9e
  Additional Information 2:	0a9e372d3b4ad19135b953a78882e789
  Additional Information 3:	0a9e
  Additional Information 4:	0a9e372d3b4ad19135b953a78882e789

I will clean and re-install the latest graphic drivers and let you know if the problem persists.

System is overclocked:
CPU: Intel Core i7 Extreme 990X (Gulftown) @ 4760Mhz (34x140Mhz)
GPU: ASUS HD6970 DCUII @ +20% power