That's a real shame about the music. The SFX were just a couple of bleeps, I'd rather have just music than any sfx at all. Anyway regarding the condition, I still don't get it. If condition is damage (and 100% = unit destroyed), then you should probably just call it Damage. But that doesn't explain why sometimes the value was going down after I attacked something.
Condition 100% sounds like a unit is at full health - and that number should drop as the unit takes damage.