hi,
it would be very nice if you would add some indication or some sign showing a fortunate critical strike. right now you never know if you won with your critical strike or with your regular chances (you can only tell when you kill a unit with 2 hit points, and even in that case you have to slow down the battle tempo, which no all of us like to do). so I would suggest some indication saying: critical strike! (favourably with some sound, maybe: aaaaagh would be suitable). This is important, because I think not everyone understands how critical strike works.