Hint: Better sniping accuracy:
When in sniper mode, zoom in. To steady yourself for greater
accuracy, sit there and do not touch anything to look or move for
about five secounds or until he stops moving around. You can now
look around with perfect dead aim accuracy.

Hint: Ubisoft logo:
When you first start the FBI level, immediately after the woman
shoots out your cuffs, go to the center of the room with the three
computers. You will find the Ubisoft logo acting as a screensaver