Just a little add on, but if you see a really good replay, and think"oh thats a good idea" don't try and copy it EXACTLY.
People advance at thier own level,
So this is only if you can't get the 2nd punch, try it step by step.
So you get a punch, doesn't Dismember anything, but it looks good. so save it as whatever you want to call it. then come back to it late by using the edit button.
to edit you start a replay and then where you want to edit, just press E.
then you might try to get a Dismember with that punch you started off with.
once you get a dismember, save, and then come back and Edit it again.
then continue like that.
But thats only if you want to, when i started i just made a replay, it wasn't anything special but it was something that i liked.
then once you think "um this is getting a bit to easy" try to make the replay look relaxed, then if you get that, faster and powerful. then just add your own bits and peices