@Phyrman09 I had issues with the game crashing out too, I think ive fixed it, heres how . . . .
I am running two Nvidia GeForce GTX760 on SLI, I found that one of them was being automatically assigned to PhysX so I assigned the CPU to PhysX instead, it seems to of made a huge difference.
I also went into the game settings & turned off - Foilage Transparency, Terrain Tessellation In Sniper Mode, Grass In Sniper Mode & Set the Sound Quality to Low Quality Sound, these we all help towards your game performance.
All these have made a difference for me & to be honest I havent noticed alot of difference in the Sound Quality.
I think alot of my memory was being sucked up by Sound Quality.
Also Ive noticed that if you have the Hangman Garage Mod running, when you enter a battle you end up with two lots of music playing at the same time, this should be fixed!
I Hope this was of some help to you & any others who are having issues.