cant launch beta as combined operations

[Officious (DayZ) 4]

I get this error and want to try this fix:

"I get "You can not play/edit this mission; it is dependent on downloadable content that has been deleted.cherarus" when trying to join any server.

- Make sure you launch the game as 'Combined Operations' and NOT 'Operation Arrowhead' when launching from STEAM."

But how do I launch the game via the beta patch icon as Combined Operations and not Operation Arrow head?

The search failed me and my google fu is weak.

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Can a mod delete/lock this I found a script which loads it properly but there are other issues now....

[devoldo 4]

What script did you find? Could you link it? Friend is trying to figure out how to launch the beta from steam (thank god I got retail)

[Officious (DayZ) 4]

I figured out how to do it, Install the beta then:

Go to your operation arrowhead folder and move the exe that launches the game out of there to some other folder or rename it to "original" or something.

Now go into steam/common/Operation Arrowhead/expansion/beta and copy this "arma2OA.exe" and put it in the main folder.

Now add this to your launch options in steam, or to the target once you make a short cut

-beta=Expansion\beta;Expansion\beta\Expansion

And the game will launch properly