if someone can make a better tutorial please do and send it in.
Tips:
.Before you wall bang stand still for about 5 seconds and if you 360 or something you have to take a frame shot then do the effect on one frame.
.towards the end where i drag back the clips while merging them. hold ctrl which keeps the clip the same but slows it down. if you drag in you speed it up.
.if your doing this on another game. go to spectator mode if it has it then get one of your friends to run for you.
.best not to try the effect while shooting otherwise you have to mask/crop every frame.
.ENJOY!