I was thinking of calling this unit 'Big Bertha' as that was what it was originally nicknamed, however that name eventually became slang for any German Artillery.  So instead I've settled for calling it Krupps Howitzer...  Krupps is the manufacturer, and it's a Howitzer.  This would be available around the WWI era, maybe combustion, although similar guns were used in seiges during WWII.  I think this unit is generic enough that it shouldn't just be a German UU...  As for stats I really don't know.  I had the thought that someone could take this unit and upgrade it into Smoking Mirror's Heavy Artillery.  Then lower the range of the normal Artillery and lower it's cost.  Make these two new units into longer range more costly units etc...  just a thought.  Original artwork in POVRay and Moray... sounds modified from various sources.  Enjoy

-Kinboat 