Do like this:
-nosplash -world=empty -mod=@CBA;@CBA_A2;@CBA_OA;@ACE;@ACEX;@ACEX_USNavy;@ACEX_RU;@ACEX_SM
"C:\Program Files (x86)\Bohemia Interactive\ArmA 2 Operation Arrowhead\arma2oa.exe" -mod=@CBA;@ACE;@ACEX;@ACEX_USNavy;@ACEX_RU;@ACEX_SM -nosplash -world=empty
see the added cba?
you need the other two--> @CBA_A2 & @CBA_OA
CBA has been updated and thats how its run now.
From the CBA page:
Community based addons:
For Combined Operations (A2 + OA):
Try that add the other cba's, and then run your game with your start up line as I had listed, and see if that changes anything, if not then please post your RPT and or list what errors you are getting if any.