This is an update to my post. I solved the issue.I can run the main game. But the DLC starts up, then shows a Unity loading bar, then crashes/closes. Tips?
Go to Device Manager and the item under display adapters secondary click and choose "disable device". Then run the DLC, hold esc and let go then press settings. Under visuals there is a new setting called "ambient occlusion". Disable that setting. Then reenable your graphics card and you are good.