I had a copy of this game as well. Has since been sold - not what I wanted.
As has already been stated, all countries have teh same German pieces.
The ships certainly be used in Axis & Allies. There was the Bismarck for a BB, Graf Zepplin for a CV, and the late late war type XXIII (is that the right designation? Can’t remember). I just prefer the waterline approach of Hasbro’s ships.
The planes are double the size at least. The fighter was a Me262.
2 types of infantry: regular and Waffen SS. They are a bit taller than Hasbro’s.
The artillery is about the same size - it is the rocket artillery used later in the war.
2 tanks: a regular tank that is a Tiger, and a heavy tank that is a Maus.
Their choice of pieces I really thought was odd to represent what they wanted, like teh fighter, sub, artillery and heavy tank. Especially when it came to the Maus for a heavy tank. The Germans only built 2 prototypes, and it was a complete failure.
The pieces are really nice, though. I kept 2 Tigers to use as heavy tanks for myself. I also kept 2 Russian Tigers and carved Josef Stalins out of them. Turned out well.
Cheers