After insisting on it, my friend downloaded the new PR too.
So, when he doubleclicks on any server in the serverlist he has a CTD, every single time.
What's strange, is that he can start a local server and play.
This is the debug of the crash:
Herbiie ''I never have had to wait for deviation, all you have to do is fire from the hip alot screaming like a girl like I do and you'll be fine.''