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You should go check out the Day of Defeat Forums, because they have tons of models there, prolly some of tanks, and all the models are pretty darn nice. Here's my case in point:

attachment.php


(you may have to register to the forums to see the files, but i think it's worth it)
 
I think that yes, but I´m not a 3D xperten, I only searched for 3ds models as Nighty said to me