Been playing german recently and I have been having problems with a t70.
Rushing t3 seems like a mistake unless you have the map control to support it.
for soviets the fuel rush is like this:
50Tir1 + 90Tir3 + 55T70 = 195fuel
For germans, rushing a P4 goes like this:
15fuel T1 + 25 fuel T2 upgrade + 50 fuel T3upgrade + 35 fuel T3 + 115 Panzer4 = 240 fuel
It's close but you will have to deal with that mini-tank without a panzer 4 for awhile unless you are ahead.
It seems like you have to go tir 2. It's only 15 fuel to start rolling out panzer grenadiers and panzershrek squads.
