by disposing of all of the fantasy and game aspects like magic, hitpoints, stats, etc and going as rules lite as possible
I used to be part of a group of ~15 people who would fight with dagohir rules, if you get hit in a limb you lose use of the limb, if you get hit in the torso you're dead, lose two limbs you're dead, no headshots with melee weapons, please do not aim for the groin but it still counts
there are rules concerning weapons but it's mostly safety based regarding flexibility, weight, bows have to have special arrows and can't draw above a certain poundage etc, a good solid blow from a dagohir-legal sword hurts pretty good, it won't break a bone (it will break your fingers though, broke 1 pinkie and rotated my thumb ~10 degrees) but it will bruise you up good, fight for an hour or three and it WILL leave you sore the next day.
dagohir is the shit, it looks kind of lame just watching a 1v1 fight but at the bigger events where there's like 200+ people it's rad as fuck.
I was an archer, i carried on the field a bow, eight arrows, and a sword and buckler. still wish the group hadn't broke up due to the autism of one person