You did really well. Multikills are beautiful. Editing is okay for now, but you will always improve over time. Try doing a simple fade to black for a HUGE multikill, like when you got that slayer attacking point C with your nova bomb. Overall, I'd give a solid 6/10. And don't think that's bad either. You have to remember I've had editors do montages for me that were simply amazing. Here's a rather decent one on my OLD AS HELL channel.