
Sega came out with several 1/144 papercraft tanks for the game "Advanced Daisenryaku 2001" for the old dreamcast console. You can view the papercraft tank gallery which includes the King Tiger, Panther Ausf G, M4A1/A3 Sherman, SU-85, SU-122 and two variants of the T-34 here. Unfortunately, they only have the Tiger I papercraft for download.
Tank papercraft
Photobuild Instructions