Well, facts are you have to play both sides differently. Russian forces at that time were not as well lead or as well trained and so command delays are longer; the manual has details on this.
The MG42 is a formidible weapon. At a minimum of 1200 rounds per minute, it can cut through a halftrack or scout car, and so the crew is wise to get the heck out of there. With Russian forces, quantity has a quality of its own, and can be put to good use.