Designed to eliminate the problems of the T-34, the T-34M had a larger, 3-man turret which could fit a radio and had much better visibility, something which the early T-34s did no have. The T-34M also had new engine and transmission which made it more reliable and efficient. 

In GameEdit

A nimble, small and mobile tank. It has a good reload and a decent gun which allows you to pick appart enemies. Its armor is okay which allows you to take some hits but its not great. An overall good tier 4 tank.