very hard indeed if you don't go premium. especially german tanks 

if wanna buy prem t8 tank for credit earning, get the t34. the damage that it deals will earn you more credits. the kv-5 is only good for bullying noobs. against experienced players, you're just a slow, huge punching back 

use HE or aim their weakness.

lol preferable you mention which tank. most tank have HE
press 3 to switch that ammo

some enemy tank like type 59 or T 29 use their space turret armor advantage that will bounce your shot.
you can try use HE at the turret. the damage is very random. can even get below 20 dmg.

KT is a great tank IMO
just don't go brawl, unless needed
angling is very much required for such beast

Get the topgun, you'll feel the difference

3 million but no equipment on tiger 2. why?

Which tank to go for after Pz.IV?

VK 30.01 (P) or VK 36.01 (H)

In a dilemma here since I read that the latter is prone to being ammo racked and the former leads to Pz.VI Tiger (P). I hit one at the engine and was like lighting a fuse of a firecracker.
Thankfully, I never experienced being ammo racked before but from what I read in the wiki, it can result the loss of crew.

Does this means I have to get a new crew member(s) and start over on the skills that was acquired with the previous tank crew(s)? 

yup major buff

http://ftr.wot-news.com/2013/08/22/german-...-8-8/#more-2008

see, all German tanks will soon be nerf by WG

the only good tank in german line is E-75,VK 3601H

now E-75 gonna get speed nerf

i grind through hell with Tiger H and Tiger II for ultimate Tier 9 heavy

so long old friend...

it gonna join PzIV soon

PzIV before nerf is PzIV S now but faster
this day all using the short derp canon, f***ing ugly
PzIV is mobile sniper hitting KV all day
it can dominate even in tier 6 if play right

join OAGA for pz 4 cake