Still broken

Is there any new advice on this? The game I purchased is no longer playable.

1. I am able to play SP
2. Game Spy
3. Yes, I hosted a LAN game for myself successfully
4. Not familiar with Steam Dev version

Odd thing happened tonight. I tried a SP game, than hosted the LAN, and then tried to join a server via game spy, and it worked! But I could not repeat this and haven't been able to join anything again.

I have not previously tried connecting via Steam. When I hit connect in the server browser there, it takes me to the Arma 3 main menu, not directly to a game in progress. (Not sure what the expected behavior is)

I was able to join the one available MP server I found after switching to Development.

Any new ideas on this?

As I noted earlier, only rpt files exist in that directory.

The game does not actually crash until I kill the process in the task manager. The altis map would otherwise stay on the screen indefinitely. I notice that my mouse cursor that is visible on the Altis map is the Window's cursor and changes shape based on the windows that were on the screen when I launched Arma.

Uploaded .rar file with several .rpt files from several crashes. No other file types (bidmp or mdmp) were in the folder.