Here is the shortcut that works for me without having to copy anything to any other folder. If you want to see how dayzcommander launches the program run procmon and then run dayzcommander. From procmon you can right click the arma2oa.exe and see what parameters commander is sending. "C:\Program Files (x86)\Steam\steamapps\common\arma 2 operation arrowhead\Expansion\beta\arma2oa.exe" -noSplash "-mod=c:\program files (x86)\steam\steamapps\common\arma 2;expansion;expansion\beta;expansion\beta\expansion;@DayZ;@namalsk;@DayZ_Namalsk;@NC"