Okay so I am attempting to play IV. When I pass the "Its your call" mission, everything seems ok before I log out of the game. Then, when I try to login and attempt to exit the safehouse I get a crash. This happened before aswell, however I luckily had an autosave going, so I was able to simply log out of GFWL and restore access to the game and start over. Now, I believe something may be wrong, because this crash is only occuring with THIS mission and I have no idea why!(as far as I know, this is the farthest i have gotten with this config).