Okay, first things first - just got my DMZ rules (thanks, Patrick Goodman!!), and I've never played. So my initial question is whether or not it is significantly faster for combat than whatever edition one happens to be playing - IIRC it was 2nd Edition. If it was significantly faster, then it is perhaps worthwhile to reverse-engineer it, with an eye towards being able to convert Xe characters to use its rules.
Looking at it briefly, it seems that it would actually be easier to convert 4e/5e characters into use for the DMZ rules; they essentially share the same sort of damage scale.
Thoughts, suggestions, recommendations, assistance?