Ah well not seen the rulebook yet
Just I tend to think of Grenadiers as being the better troops as opposed to 'Stomach' battalions, 'Festung' troops and reluctant Poles
I particularly liked the story of one US para who came down in front of a pillbox, he lay there expecting to be shot, only to hear an altercation from inside followed by gunshots.
It transpired the Polish privates had decided that they were going to surrender and when the German NCO objected they shot him!