i am getting extremely frustrated with this game. i'm stuck for a long time in a tank i hate, and i'm very dependent on retarded teammates. hey you, with the tiger II, stop hiding in the corner of the map and get to the goddam front, asshat.
You didn't have the T-44 manuevre into your way whilst you were circiling a Tiger II in your T-43, taking out your track... only to be smashed by your own artillery that after two minutes FINALLY recognised that you were getting shafted by multiple tanks.
That was stupidity of the highest order.
To address your first point, I loved Tier 1 and Tier 2, hence why I have a souped up T-26... but I hated Tier 3 and Tier 4 because I never had credit so my crew sucked, my tank, even though equipped with the best usually ended up as a suicide scout type vehicle.... and it just wasn't fun anymore.
Getting to Tier 5 changed that completely for me. My T-34, once I'd researched a bit and worked out who I could hit and who could hit me, I was rolling. Still got those matches where I was bottom of the pile and unable to scratch 10 out of 15 tanks but most of them were enjoyable.
Currently working on the German TD line. Loved my PanzerJager I and the Marder II when fully upgraded was a fearsome foe, capable of reducing a T-34 to scrap in not too many shots. Now I'm in the Hetzer and struggling once more. Things should pick up once I get my suspension (3 extra degrees a second) and a big gun to shoot people with (~400 damage from HE shell).
This time, my PanzerJager had 75% crew, I transferred all 3 members over to my Marder II and paid 20k each to upgrade them... then took all three of those onto my Hetzer and upgraded those... plus upgraded the fourth crew member the Hetzer had. That makes a huge difference but on your first time climbing... it's not affordable.