I'm having the same issue as mr_danielik and speedone.

Specs:
Radeon Software Version - 15.12
Radeon Software Edition - Crimson
Graphics Chipset - AMD Radeon R7 200 Series
Memory Size - 1024 MB
Memory Type - GDDR5
Core Clock - 950 MHz
Windows Version - Windows 7 (Service Pack 1)
System Memory - 8 GB
CPU Type - AMD FX(tm)-4130 Quad-Core Processor

I bought Arma III during the steam winter sale, and I really want to play. I've already gone to support and /r/Arma.

I attached the crash log.

Thanks.