I've noticed there's been a change in the soldier/sargeant/imp sounds between 0.6.2 and 0.7rc. It doesn't always work that well IMO. For instance, the soldier and sargeant still make grunty zombie-ish alert sounds but when you shoot or kill them they make man-ish sounds. There's a big difference between "grouuuuwh" and "OOH! UH! AAAAAAH!" and it doesn't sound consistent. If they're people then all the vocalizations should make them sound like they're people, not just some of them. So instead of a growl you should have a sound that normal people would make when they hear something. Otherwise just bring back the zombie sounds.
The man hit sounds also sound out of place on the imp. It's really weird to hear a spell-casting cobra-beast sound like a normal person when it's getting shot.