Yeah, but the tanks more or less ignore the infantery as long as other tanks or guns are operational, and a few lads with anti tank-grenades might come in handy.
Also, Bazookas or Panzerfausts hidden behind buildings are deadly.
Oh, and entering buildings is possible in the addon that is on the way. (many have complained about the same thing)
Agree on some of the sounds, particularly AT Guns and light tanks sound like fire crackers. Let me know when you find or make some brutal sounds!