Since the alpha PhysX3_x86.dll has been crashing the game, I realize that you already know about this issue and have multiple discussions about it already, but I figured I'd help out in resolving this problem seeing as it's the only thing holding me back from properly enjoying the game. I'll keep uploading crash reports as it's the only crash I'm experiencing and it's easy for me to reproduce.
The crash happens on the current version and the current dev version. {F23118}
Playing the game is all that is needed to reproduce it. I haven't been able to reproduce it in singleplayer (but I don't spend much time offline), it seems it's a multiplayer only thing.
It's safe to say that the crash only occurs when action is happening, out of the three crashes I've had today (out of 3 sessions) I've crashed in the following situations:
1st - In the gunner seat of an IFRT at the very moment we started taking fire.
2nd - In a bush next to a lot of enemy soldier who I was backstabbing.
3rd - In the gunner seat of a IFV at the very moment I opened fire on a unsuspecting guy next to me.
If you can try:
Use geforce experience to update graphic drivers to beta in clean mode (before install check in window in down and after don't uncheck anything like physx)
If not helped verifity files though steam.