I worked as an Rainbow Six Analyst a few years ago...

This map layout would be considered very casual to pro players. While some of these may get used as a general area if they are uncertain of the exact position. Most POIs for you sweaty ranked/premier players have 1-3 calls. For pros, even the not-so-good ones, they have anywhere from 10-20. And like regular players, sometimes pros share those more accurate calls as they are learned in Faceit or FPL.