Reminds me of an old proverb..."When fighting an armoured knight, bring a can opener." Speaking from personal perspective, I've spent much of my life training & teaching Japanese martial arts (i.e. Aikido) so a bo-staff is second nature to me as a broadsword has become. Full-armour keeps you protected but it is not infallible like the wearer. A person who does not know how to use his/her mind, mouth, & body in sync with their knowledge, training/skill, and its application through technique will find themselves outmatched no matter what they wear. Focus your strengths using calculated counters in aggressive, concentrated efforts on your opponent's weaknesses. Remember (from English Lowbowmen @ the Battle of Agincourt experience): A knight not left standing is a knight not left living.