Thank you for putting this out for testing.
As far as performance goes, I usually run the game at 60 fps and usually keep at around 58-60 fps depending on location and zombie count.
On the Vehicle branch I was running at around 28-33 fps with it dropping to around 19 fps as I entered a more densely populated area (West Point)
My CPU usage fluctuated between 43% and 68% again depending on area and zombie count.
i7-4790k CPU @ 4Ghz
Nvidia GTX780 Ti GPU
Windows 10 Home
Also some texture bugs on the road from Muldraugh to Rosewood. Textures visible depend on viewing angle