Half-Swording, Grappling and Gauntlets in Medieval Combat

Link to grappling tournament I fought in. I'm fighting in Blue. I won one of the fights by ripping off a helmet at 4:07 in the video. With armored grappling, when the helmet comes off, it's an automatic submission because the next strike with a gauntlet to the head would kill the person...
https://youtu.be/s56IVr0fgLc