Progressing up the KV line for the "On Track to the IS-4". Finally got the KV-4 fully upgraded and was just 1-shotted by a T34. Asked in game and was told the cupola on top of the turret is the weak spot that was hit to remove all 1,650 HP in one BOOM.
Does this mean that the first turret is the better one to use? or was I just really unlucky?
Upon further reflection it's possible I got really lucky and multiple incoming rounds hit at the same time. The question remains, is the bigger turret the one to be using?