Help on how to create hit-boxes/collision volumes for game characters in blueprint.

In the second half of this video linked below, he shows how to setup hit boxes and event hit. It’s not in English but I think this may be a good place to get started.

[video]www.youtube.com/watch?v=zGJUyCI6rpg[/video]

Anyone know of similar tutorials in English. And what important things do you think can be consider and learn in order to apply this technique to a fighting game or other kinds of games?