Can't Play Campaign(Single Play)

[Chance73181016 0]

I recently purchased an Arma 2 and an Operation Arrowhead. But the game doesn't seem to work properly. Pressing the Single Play button simply toggles between difficulty levels and the start menu.

 

I performed all actions, such as running as an administrator, downgrading the beta version, and setting compatibility etc. But I still can't access singleplayer.

 

when I checked the local files, there was no separate campaign folder. Could this possibly be a problem?

 

And another question. The Arma2 in my Steam library doesn't seem to be the version sold in the store. Mine's appid is 33910, but store's is 33900.

 

Because of this, I don't think I can get any additional support for Arma 2. Clicking on the store page will take you to the main store screen, not the Arma 2 sales page.

 

To solve this problem, I permanently deleted the existing Arma 2 from my account and purchased Combined Operations, but the appid of the Arma 2 included in the product is still 33910.

 

And i tried purchase Arma 2 separately, a message will appear saying that it is not possible.

 

In this case, how can I buy a new Arma 2?

 

I would like to find a solution to these two problems.

[Chance73181016 0]

Thank you for answer my question.

 

But, the problem is still not resolved. 

 

Scenarios, Bootcamp and Armory work well. Howeve I still can't access the campaign.

 

It's just going back and forth between the campaign difficulty menu and the start menu.

 

Is there any solution other than deleting and reinstalling?

 

I would be very happy if it became a campaign...