What if during WW2 , before the endstage of the Axis, Allied Special commands sneak not only into the occupied territories but into the Reich itself and carry out numerous operations (maybe even in civilian clothes and false German uniforms)?
edit: To what degree is it possible in a highly industrialized and urbanized country with advanced infrastructure and a dainty coercive apparatus to carry out such operations ? Forests in modern Germany , with exceptions like Black Forest are not that big to hide , the nature in Reich´s Eastern territory might provide also some possibilities to take cover.