[pursuivant]

Wow :!:

I think they used those rail cannons on the Russian front - a siege in the Crimea I think.

Its been a while since I've read any WWII history so I could be wrong.

Designed for use against the Maginot line, ended up being used mostly in Russia, although a few were used against the Western Allies.

I believe that the first cannon in the film is the Schwerer Gustav or Dora 80 cm cannon:

http://en.wikipedia.org/wiki/80_cm_Gustav

The tracked siege mortar is the Karl-Ger