If you don't know, you can find out your processor name like this and enter the name into Google. This tells the game how many physical cores your CPU has. There are a few things you may need to change depending on your system. Paste in this: -beta=Expansion\beta ca Expansion\beta\Expansion -cpuCount=4 -exThreads=7 -maxMem=8192 -world=Chernarus -nosplash Right click on ARMA2: Operation Arrowhead and click 'Properties' at the bottom.
The next part is done in your Steam client. C:\Program Files (x86)\Steam\steamapps\common\arma 2 operation arrowhead Now, navigate to C:\Program Files (x86)\Steam\steamapps\common\arma 2 operation arrowhead\Expansion\betaĪnd copy the file 'arma2oa.exe'. Doesn't really matter, just make sure it's different. gifs!)įirst off, you want to navigate to C:\Program Files (x86)\Steam\steamapps\common\arma 2 operation arrowheadĪnd rename the file 'Arma2OA.exe'. So without further ado, here's the guide (with. I thought some people might be interested in a tutorial guiding them with idiot-proof instruction on how to launch Arma2 with the DayZ mod enabled.