"Heart of the Reich" is the fourteenth and penultimate mission in Call of Duty: World at War. The player must now join the other Soviet soldiers to assault the last defense to defeat the Third Reich, within the Reichstag. The mission starts off with Sgt. Reznov pulling Pvt. Dimitri Petrenko out of the flooded metro and up to the surface level. The player must then get to the Reichstag, destroy the four FlaK 88s protecting it, and then enter and assault the building.