r_rolo1
King of myself
Your faith in Firaxis in laudable, but not deserved. It would not be the first time that they would introduce a "Cool !!!!" feature that unbalanced seriously the game due to less than perfect testing ... BtS Apostolic palace comes to mind.Firaxis has managed to create 4 excellent versions of Civ. You might even say they know what they're doing. Maybe, just maybe, wait and see how it plays before declaring that the sky is falling.
So, as you are talking of 99% speculation ( I agree with speculation, not with the %

GDR has 150 str, 3 moves and a penalty attacking cities ( information taken from Firaxis Civ V site ). The closest thing on land that we know about is the modern armor , with 50 str and 4 moves. The real deciding factor in here ( if we don't get to air power ... I surely expect that air power being even more proeminent in later wars than it was in civ IV ) is the hammer count of both units: if the hammer count of GDR it too low, Civ V will look like you regular mecha anime, if it is too high the GDR will appear so little times it can be considered a easter egg.
Only in a limited area the GDR could even be considered as something that can add to balance ... and even there it is hard to see now how it can add to balance being 3x stronger than any known counter. And Firaxis has a long story of droping unbalanced units ( for both sides, underpowered or overpowered ) in their games
