This the link to the new archive.

https://www.dropbox.com/s/m0dy5je6strkkiw/V.3.0.rar

I try to connect on a server after I deleted files .bimp , .rpt , .midmp but I have the same issue.
I try to connect on a server with an other profile but I have the same issue.
Then I enclose you the new archive.

I have new information on my problem.
I can join dedicated servers but servers created by other (private servers) I can't join.

1. When I create a server and when my friends join me my game freezes.
2. When I join them on their private server the game freezes too.
3. And when I join a server created by other without my friends it's the same case.

I test my connexion and I open my port, it's not resolve the problem.
I don't know what kind of problem it is.

I tested to change my overall quality in low quality and in high quality
I have the same problem when I join a private server and I always have no problems with dedicated servers.
I tried to enclose a new version of C:\Users\<Name>\AppData\Local\Arma 3 Alpha\ but I had an error when I click on upload. I try tomorrow to send this archive.

Thank you for your answer.
I enclose you the winrar package requested.
I hope you find something to fix my problem.

The game never crashed.
It just freezes when I click on the button "JOIN" after I chose the server.
The game freezes at the page of loading on the server. I enclose you a picture when the game freezes.
When I have the luck to join a server I don't know how I can play without freezes or crashes.

It's not a problem with my hardware:
CPU: Intel Core i7-3610QM
VGA: Nvidia GeForce GTX 675M / 2 GB GDDR5
RAM: DDRIII 8 GB

Maybye the game because it's an Alpha.