CWN has an interesting little bit about the rolls for installing implants, and the trauma die is weird. there's a die each weapon has and a separate AC that if you beat it then it counts as a critical hit. crits don't just do big damage -per se- but if you are downed in a fight where you took one then there's a whole injury table about it.

champions doesn't really do this. it just has killing and stun damage and there isn't really an answer to medicine et all.

"just make rules up quinn" yes but i dislike venturing too far in to the weeds more than i have to