Yes the 4th perk. I am over 90% on the 3th perk to be detailed. The kv2 is not a slooow clumsy kv2 anymore- alot of arrogant tankers has experienced that "tiny" detail when they suddently find out the reload and aiming time on the 152mm high explosive shell is NOT a minute anymore.
Forgot to say i have the original "gold" crew i bought in the beginning. I dont move my crew to other tanks.
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