Why do they have to be mediocre late game?Because you can't have your cake and eat it too, asymetrical balance. Also I'm here to stay and changed my mind. This one is far from being a rant or rage posting, I followed the basic guide lines , offered sensible solutions and looking for a calm environment to discuss the mentioned unit/playstyle (5RM into m20 into sherman)
They are the most expensive base starting infantry in the game, why can't they be good late game too?
And what you are doing is called internet bullying; shaming, stalking etc. Keep the discussion on topic.