However, if you pre-order Sniper Elite V2 before it's released on May 1 (Xbox 360, PS3, PC), then you will be given a bonus mission and two new rifles (SVT-40, Kar 98). The bonus mission gives you the opportunity to kill Hitler.
The story element for the bonus mission has the player intercepting Hitler's train before it leaves for Berlin. Your goal is to snipe him before he escapes on foot. Sounds simple aside from the fact that the player only really has one good opportunity to take the shot.
(Joystiq)