Hey, first of all thanks for all of your work! I'm having a blast with The Dark Mod and with learning DarkRadiant (I'm truly enjoying your Speed Build challenge by the way).
I agree that penalty might not be the most appropriate word.
What I meant was that the current stealth score is something that is supposed to be minimized. The breakdown of the score is actually a set of penalty points applied to different situations in which the AI was alerted, so this score is more like an "AI alerted points" (again, not the perfect words, but it's along those lines) than an actual stealth score.
It could be converted into a score if it was presented over a total. For example, 0 could be converted to 100/100, a 1 to 99/100 and so on. That way, when a user sees:
Stealth score: 97/100
they immediately understand it wasn't perfect but it was close. When they see:
Stealth score: 3
the immediate reaction is confusion and that they played it terribly, especially the first time they see this, but again, if it was more like:
Stealth [insert word referencing something negative that needs to be minimized]: 3
users could better understand they did minimize what was supposed to be minimized.
Anyways, just my two cents. Thanks for reading.