[colorado tanker]

Here's a bit of trivia for you. Rommel's book was actually entitled Infantry in the Attack or Infantry Attacks. He was an instructor at the German Infantry School in the interwar years. Nevertheless, reading the book would give great insights into his strategy and tactics.

Hollywood probably got it right in changing the name for the movie because most people wouldn't have understood why it wasn't, strictly speaking, a tank book.

[Tallguy]

Correct. The German Army of WW1 developed infiltration tactics to a high art in that war. But there were operational limits to the endurance of the infiltrating storm troopers and if the opponents stood firm, the attacks would eventually grind to a halt. Grafting the tank into penetration phase was the operational solution and the chief insight during the interwar years. So by WW2 you get panzer & panzer grenadier divisions slicing through your front lines and going for double-envelopments.