From Early Access version 04 :
Here are some problems about this medal:
This medal is a bit rare, just like “Either Brave or Stupid”. The update really made this badge much more difficult, I have only won two of them since version 4. I request reducing the medal to per-stage instead of per-mission.
Secondly, for the description, I think that “…in a single mission”, well, a mission is too large to be “single”. It should either say “…in a single stage” (as suggested above) or “in an entire mission” instead.