Rhino heavy tank
 
This unit is the first tank you can produce after you build your war factory. It is alot stronger than the allied grizzly battle tank. If you play a game as the soviets and unit count is on 10 you can win in about 5 minutes if your enemy is playing as the soviets all you have to do is send all of your start units to your enemy and over power them which should be fairly easy if you move over the GI and destroy the tanks with your tanks and men then you will be able to destroy all or some of your enemied buildings which will then be easy to over power them even if you havent totally killed them.