By Combat RP, I mean combat in general. Be it in a Fantasy Sandbox, a Nation RP, or...Well, anything, really. Is there any proper way of going about it? Do you have any tips?

The reason I'm asking this is because I'm rather inexperienced with the concept when it doesn't involve a d20 or something along those lines. I want to make sure to respect the story while the combat goes on, while also showing respect to the storytellers themselves.