Δαφνη Ευτυχια Αρθουρος

I think the term of art is "select fire" or "selective fire". That is, aside from "safe" and "shoot", there are options for "rock and roll" and sometimes "three round burst". The burst fire is much more sensible in most circumstances.

Heck, as I understand it, best general practice for things like a .50 caliber machine gun is 5-7 round bursts. Not rock and roll. 5 rounds of .50 caliber will ruin your day just fine. Or your engine block.