You're right, if it's practiced it's not random. But it can still look funny at the range.
The Peel is an immediate action drill that is designed to break contact without giving away the size of the element and the way we did it, ended with a real bang! (Claymore)
Is that the one where the lead guy opens up on full auto until he runs dry, then he falls back while the guy immediately behind him follows the same procedure in a reverse leap-frog?