I have this same issue with ARMA 2: Operation Arrowhead.
Hardware Information:
CPU: Intel i5 2500k (OC 4.2 GHz)
Motherboard: MSI Z77A-G45 Gaming
4x4gb Corsair Vengence DDR3 1600MHz
Graphics Card 1: EVGA GTX 680 4gb
Graphics Card 2: EVGA GTX 680 4gb
Hard Drive: 1TB Western Digital Black
Power Supply: OCZ MKIII Silencer 750w
Computer Case: NZXT Switch 810
Cooling: Corsair H100i
OS: Windows 8 x64 Pro with Media Center
Monitor: Asus VE248H 24in
Mouse: NAGA 2012