I'm new here. Although I first picked up Star Army several years ago, I only recently started playing when I learned that a friend of mine played an ATZ campaign! Pretty cool. So we started messing around with both games and I ended up doing some monster stats for Doom the Boardgame and using the SA5150 rules for some solo play. It worked great! I used the boardgame movement rates, and I cut range in half for weapons (as a rule of thumb) but used THW rules for combat resolution.
You can check out the YouTube video here: https://www.youtube.com/watch?v=bI2BC1rkYic&t=686s
At some point, I want to expand the conversion with Doom weaponry.