Obviously Lycaon is not wearing "boob armor." I did mean that it was minor injury insofar in that it did not limit him in the future in any way, although it seems we've run into another problem. I'm not an expert on medieval warfare, so I was not aware of how powerful plate actually is.
Don't worry, few know how powerful plate really is.
The best ways to counter plate (based on common equipment from the war of the roses, where foot knights were common) is with professional troops with anti-armour weapons.
The most common was knights and men-at-arms armed with pollaxes, a mix between dane axe and an halberd battle-axe.org/rpg/images/pollaxe.gif it is a powerful weapon.
With the rondel on the handle to protect the hand, reinforced hardwood handle and a specially designed striking head, this is an halberd on steroids.
A weapon for the elite troops.
The tips of the axe head have a higher chance to strike through plate, since it has an easier time to bite into plate. But it is the hammer side that is primarily used to fight plate armoured opponents.
However, plate armours primary weakness is its mobility, which surpases that of the human body (if it's well made).
It was common for men-at-arms to end up wrestling, since if you bend the arm of a plate armoured man it is about as easy to break it as if he didn't have the armour.
The joints have no extra protection from plate, the fact is that all the extra weight makes joints the biggest weak points.
And not the joints in the plate, the joints of the body.
Since the armour moves more than the body.
So pollaxes were often used with the end spike pointed towards the foe, one would engage with the spike to make the foe open their guard and then follow up with a hammer strike with the head.
Cross-checking and tumbling the foe using the pollaxe as a staff was also common, to throw the opponent to the ground where the ground can be used as an anvil as you speak.
Contrary to popular belief, you can easily get up from prone in plate armour. However you are still thrown prone and your opponent can take advantage of your predicament faster than you can get up.
Reason i nerd down so hard on this is i fight in SCA heavy fighting, and is an avid armour nerd.
Sorry if i'm annoying :P
Also, @Ellri the link you posted doesn't work.