Pro hint: do not truck push if you are not able to keep alive your truck. Better, put the truck in your base.
Btw, I do not see why this is relative to tech cost and speed.
OKW has the fastest and cheapest teching. Deal. With. IT.
OKW has the cheapest teching on paper, and they should get the cheapest teching because of their resource penalty. However, this is not what we actually see happening in the game. What we see in-game is that Soviets don't need to tech past T2, medics and AT nades and can get elite infantry and awesome call-in tanks without needing to tech further simply by clicking the guards motor doctrine or shock rifle doctrine. OKW can only hope to counter these units with T4 units, so they are forced to tech.
So right of the bat we can see that the fuel investment for tech is actually a lot higher for the fuel-starved faction than it is for the non-fuel starved faction (25 for soviets, 80 for OKW when corrected for starting fuel). So what about manpower? Surely OKW is cheaper right? Well.. again, no. With OKW you spend a total of 400mp on tech, with soviets 535. It's a small difference in OKWs favor but there is one gameplay element that swings the manpower balance to the soviets favor: Demo charges. With one simple click the soviets 135 manpower disadvantage is turned into a 100 manpower advantage.
Now, before anyone dares to say "get minesweepers lolz": You clearly have not played enough OKW if you think more minesweepers are the solution. OKW sweeper squads are super expensive and valuable (but fragile) combat units and are thus unsuited for just capping territories (imagine calling in shock/paratroopers in just to have them cap the edges of the map). For every OKW sweeper squad you have, a soviet player can build 2 engeneer squads, making in near-impossible to predict where demo-charges are going to be placed. Furthermore, OKW sweepers have HORRENDOUS range. Demo charges are only revealed when you are already in-range of the bloody thing.