"The 32 Second Macbeth"

In the beginning of "The 32 Second Macbeth", actors 1, 2, and 3 come in and say "fair is foul and foul is fair followed by actor 4 saying "What bloody man is that?", meaning that he is questioning the man who is covered in blood. Actor 2 realizes that Macbeth is making his way towards them and shouts out "A drum, a drum! Macbeth doth come". Once Macbeth arrives and says "So foul and fair a day I have not seen", in other words he has not seen a day that is not foul and fair. After Macbeth says that actor 3 tells everybody to hail Macbeth and that he shall be king for now on. Macbeth says that if he does become king then he will be crowned and then actor 3 tells Macbeth to unsex her. Macbeth questions her of when it will be done and she tells Macbeth to screw his courage and then he sees that he has a dagger then kills actor 3. After the killing, actor 5 says "A little water clears us of this deed", meaning that water will wash the blood away, making it look as if nothing had happened. Actor 6 tells Fleance to fly then dies and Macbeth says "blood will have blood" which most likely means bloodshed will lead to more bloodshed. Actors 1, 2 and 3 come over and say "double, double, toil and trouble" which point to the calamities that actor 6 suffers from being killed. Actor 7 then says that he has been killed to his mother and dies. Following the death, Actor 8 says "bleed, bleed, poor country!" which explains that many people are dying, which means a lot of bloodshed. Macbeth ends up dying in the end and Actor tells everyone to hail the king of Scotland. In this script, the two observations that I saw were many people being killed and a bunch of people bowing to Macbeth as he makes way. Two questions I would have for this script is why would actor 3 want to be unsexed and what does actor 8 mean by saying "Turn, hell-hound, turn!"?