I don't get the Scout

I have some issues while playing the Scout. I'll go over them in this video. The video clip on the Mad Milk was from SilverTF: https://www.youtube.com/watch?v=Jne4G... The weapon demonstrations were from the Official TF2 Wiki Channel: https://www.youtube.com/channel/UC7F5TW53jPApb3C_-AyXxig and the Godlike clip was from HeMo oo: https://www.youtube.com/watch?v=BIDRB...