The Verteran Tiger is very broken. In the game I played, it damaged or destroyed everything with one roll whether the Tiger was disrupted or not. Even Close Assault 8 had trouble dealing with the Tiger.
As for the Heroes they actually break a few fundamentals of the game. They break the concept of defensive fire, disruption, and regular or elite infantry. These units are super elite. It should not be allowed that you can have an unlimited number of these in each army. WWII wasn’t fought by super-heroes, it was fought by humans.