why do you have tanks which they were never in reality?

TheyCallMeHans:   All the vehicles in game were at least a plan, an idea, a blueprint or a concept, and we find it interesting to provide the players with an option to play with "what could have been a vehicle". Additionally, new content is added to have diversity in the game itself, to make the game play more varied and to balance out some things.   If we only had a couple of dozen of vehicle types that were mass-produced, the tech three's would be quite more scarce, the matches would be harder to balance and basically the game would be duller. I think even the most hardcore fans of the Tiger or the T-34 would get bored after playing the same vehicle over and over.   Now you have an option, a possibility to play all sorts of vehicles, from the elders, to mass-produced beast that roars the battle fields, as well as concepts and ideas that only saw fights in form of desingers and engineers battling over what the new design should encompass.