I got a zlib_2 error, ended up reinstalling the game entirely (somewhere along the line my game had corrupt data thanks to the installer crashing atleast 3 times). My setup is a bit older so I was not expecting much, running on DX10.1 everything on normal, impressed with how smooth the game runs. Even online I have not experienced anything noticeable (screen tearing, fps drop or stuttering) though I would love to be able to play it at 1080 @60fps.