Gangs of Sherwood

So this is achievement is obtainable, but it's a little buggy. I could not get this to unlock using either Robin or Marian. But, I did get it to unlock with Friar Tuck. Apparently the same goes for completing one of the side quests for this achievement:


You need to progress through the game and level up enough to be able to purchase the "Parry & Counter Attack" technique from Antonna Carridge (her icon is the flexing arm).

Parrying in this game is pretty simple. When the enemy is about to attack you, their eyes will glow for a second or so, and as soon as that glow goes away, that is when you want to press to parry, and then right after press either or to perform the counter attack.

You can earn this in the training area, so go over to the purple console called "Dummy manager", then load up a single Light Guard that is set to attack you and is invincible. You can both practice parrying, and earn the achievement here.