Speaking of achievements, I'm having trouble getting the Devil's Own Luck achievement. I did the method mentioned in the comments here of having her watch the cameras for two days and then picking a place for her to guard, and I got lucky and caught him. However, I didn't get the achievement.
I tried reloading a save I made before I had her look at the cameras, and just had her guard a place that first night. I kept reloading that save and trying again until I got him, and still didn't get the achievement.