Gravel, for your information and fair warning, this is a
really sensitive issue. This has been discussed ad nauseum, and the only answer that I can give to you is this: the game is a squad-level representation of small-scale meeting engagements. It is not an "armored column moves across the fields to take a town or ambush another armored column" type of game. It is 28mm on terrain-heavy boards measuring 4' x 4' (in most cases). The game was never designed to be a large-scale war. The majority of the people that play this game like it that way. There are more than enough vehicles, imho, and those vehicles have their uses. MBT's and their ilk just have no place in this incarnation of the game.
Fluff-wise, they (the big armored units, super-trains, air transports, close-air support, etc.) exist. However, they are just that - fluff. Yes, several models were produced. Much the same way that I collect matchbox-sized '69 Superbirds and Daytona Chargers, I would collect those models that were produced, even if I never played with them.
Apparently, rules existed for some, if not all, of these vehicles. However, UWZ does not have rules for them, and probably won't have any official rules produced for them in the foreseeable future.
That said, I would not attempt to sway you from your opinions nor from any ambitions you have reagarding making rules and models to be used. All I am saying is that it has been tried, and has not seen much community-based support.
I hope that I have come across as informative and diplomatic, rather than as someone who is trying to talk you out of discussing this further. By all means, please, discuss it. Just know that you may encounter resistance, and why you might encounter it.
Well those discussions were mostly to do with the gameplay itself. But fluffwise, is there any reason why tanks are hardly seen on battlefields?
According to the fluff, there is plenty of armored, air and other types of vehicles in the UWZ Universe. Read up on Capitol's Martian super-trains.