The scale and scope is essentially the same, and veteran players familiar with A3R should feel right at home – right down to the customized military unit bitmaps. This adaptation has roughly the same map, the same force pools and scenario orders of battle, and the same relative economic production and unit costs.
This is an adaptation of Avalon Hill's 1992 board game ADVANCED THIRD REICH (A3R), the sequel to THE RISE AND DECLINE OF THE THIRD REICH originally designed by John Prados in the 1970s. Here's a couple of excerpts from my design notes to help explain things: Here's an overview shot of the main part of the A3R map: