When a Berserker is fighting a Peacekeeper when a Peacekeeper lands the first attack it seems impossible to block the second incoming attack for his combo or the direction attack indicator doesn't seem to show or allow you to block the second attack. It is possible that my reactions could be too slow to block the attack as the Peacekeeper does attack really fast or it could possibly be a bug. It seems that the first attack hitting the Berserker puts him into a stagger that doesn't allow you to block the second incoming attack. Please look into this.
The berserker double axe up heavy attack is unblockable. But I've never missed a parry on him. If I do get hit the first I will parry the 2 100%. The poopkeeper how ever. She needs to be as slow as the berserker in my opinion. The fact that 1 out of 3 assassins has a way to poison you is bs. She's not even a hybrid. She just an annoying lil British lady with a medium sword an a dagger. Like duf****