I know that the footage is dark but here we are at my place working a little knife and gun.
https://www.youtube.com/watch?v=-b6fa7FcHyU&feature=youtu.be
https://www.youtube.com/watch?v=YyO0eiUYec8&feature=youtu.be
https://www.youtube.com/watch?v=geTbQbxLros&feature=youtu.be
https://www.youtube.com/watch?v=qkzV7CCSbTE&feature=youtu.be
The principles are simple. Clear the weapon and attack the man. In the videos we emphasized the clearing and driving forward. Remember as you take ground you need to attack at the same time.