So guyz ... by me was it like that ... first I downloaded it also by Mega... but I could not download the full file ... cuz I had not the volume from mega and had to pay for more volume to get the file ... the other download link is more slower ... but there it works without any problems.
What you have to do to get the Client.
As frist, you should get 7zip ... to convert the .rar file into a custom file (Battleforge).
Then after this step.
You have to download the Updater link.
Then is it important !!! DONT COPY JUST THE FILE AND PUT IT INSIDE THE BATTLEFORGE ORDER !!!
It will not work like this.
You have to go inside the File and then just copy all documents inside ... and place them inside the Battleforge file (what you got with the transforming from the .rar into the normal file)
Then will come a Virus alert, you have to give this files a access anyway your Computer will block them ... cuz he thinks there is a Virus on.
So after all these steps ... just try to login again and again and again ... and if you are lucky you will have a playtime in Battleforge ... after a long long time ! : )
Good luck guys.